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Preprint ARTICLE | doi:10.20944/preprints202008.0229.v1

Evaluation of the CDOM Absorption Coefficient in the Arctic Seas by Sentinel-3 OLCI Data

Dmitry Glukhovets, Oleg Kopelevich, Anna Yushmanova, Svetlana Vazyulya, Sergey Sheberstov, Polina Karalli, Inna Sahling

Subject: Environmental And Earth Sciences, Oceanography Keywords: OLCI Sentinel-3; Barents; Kara seas; absorption coefficient; uncertainties; field data

Online: 9 August 2020 (22:31:34 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202402.0990.v3

Negative Temperature Coefficient Properties of Natural Clinoptilolite

Loredana Schiavo, Lucrezia Aversa, Roberto Verucchi, Rachele Castaldo, Gennaro Gentile, Gianfranco Carotenuto

Subject: Chemistry And Materials Science, Materials Science And Technology Keywords: NTC-material; zeolite; clinoptilolite; ionic conduction; lamellar texture; sustainability

Online: 18 March 2024 (10:37:25 CET)

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Preprint ARTICLE | doi:10.20944/preprints201611.0091.v1

Determination of Wheat Growth, Crop Coefficient (K_C) and Water Stress Coefficient (Ks) under Different Salinity

Meysam Abedinpour

Subject: Biology And Life Sciences, Agricultural Science And Agronomy Keywords: crop coefficient; evapotranspiration; salinity; wheat crop

Online: 17 November 2016 (10:55:59 CET)

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Preprint ARTICLE | doi:10.20944/preprints202405.0725.v1

A Novel Nano-Laminated GdB2C2 with Excellent Electromagnetic Wave Absorption Performance and Ultra-High Temperature Thermostability

Longfei Jiang, Gang Qin, Pengxing Cui, Guoqing Wang, Xiaobing Zhou

Subject: Chemistry And Materials Science, Ceramics And Composites Keywords: GdB2C2; ternary layered materials; electromagnetic wave absorption; ultra-high temperature ceramic

Online: 13 May 2024 (09:10:36 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202405.0433.v1

A Novel Algorithm for Classifying Vegetation and Non-Vegetation Using Red Edge Slope Coefficient with Hyperspectral LCTF Imaging

Bayarsaikhan Uudus, Bayartsetseg Oyungerel, Yukihiro Takahashi, Erdenebaatar Dashdondog, Turtogtokh Tumenjargal, Narangarvuu Dashdondog, Qinxue Wang, Hasi Bagan, Begzsuren Tumendemberel

Subject: Environmental And Earth Sciences, Ecology Keywords: Hyperspectral Imaging; Liquid Crystal Tunable Filter; Red Edge Slope Coefficient; Spectral Reflectance; Vegetation Classification; Remote Sensing Algorithms

Online: 8 May 2024 (15:28:55 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202405.0713.v1

Clustering Coefficient of Lexicographic Products

Melissa Holly

Subject: Computer Science And Mathematics, Discrete Mathematics And Combinatorics Keywords: lexicographic graph product; clustering coefficient; average clustering coefficient

Online: 10 May 2024 (16:55:41 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0410.v1

Enhancing Force Absorption, Stress-Strain and Thermal Properties of Weft-Knitted Inlay Spacer Fabric Structures for Apparel Applications

Mei-ying Kwan, Yi-fan Tu, Kit-lun Yick, Joanne Yip, Nga-wun Li, Annie Yu, Ka-wai Lo

Subject: Chemistry And Materials Science, Polymers And Plastics Keywords: Cushioning material; Compression evaluation; Inlay knitting; Stretchability

Online: 6 September 2024 (03:49:28 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0566.v1

Facile Fabrication of Co–Doped Porous Carbon from Coal Hydrogasification Semi-Coke for Efficient Microwave Absorption

Yan-Fang Li, Li-Fang Wang, Shu-juan Gao, Tan-Lai Yu, Qi-Feng Li, Junwei Wang

Subject: Chemistry And Materials Science, Materials Science And Technology Keywords: Co/C composites; microwave absorption; dielectric loss; magnetic loss

Online: 9 September 2024 (07:07:45 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201609.0112.v1

Influence of External Magnetic Field on the Microwave Absorption Properties of Carbonyl Iron and Polychloroprene Composites Film

Haiyan Wang, Xueai Li

Subject: Chemistry And Materials Science, Surfaces, Coatings And Films Keywords: carbonyl iron; composites film; external magnetic field; microwave absorption properties

Online: 28 September 2016 (10:32:52 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201702.0011.v1

Simulation Analysis of Solution Transportation Absorption Chiller with the Capacity from 25 RT to 1000 RT

Koji Enoki, Fumi Watanabe, Seigo Tanaka, Atsushi Akiwawa, Toshitaka Takei

Subject: Engineering, Energy And Fuel Technology Keywords: absorption chiller; thermal energy transportation; solution transportation; ammonia-water; COP; simulation

Online: 4 February 2017 (07:49:12 CET)

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Preprint ARTICLE | doi:10.20944/preprints201808.0009.v1

Coefficient-of-Determination Discrete Fourier Transform

Matthew Marko

Subject: Computer Science And Mathematics, Discrete Mathematics And Combinatorics Keywords: Fourier Transform; spectral domain; resolution; coefficient of determination

Online: 1 August 2018 (08:49:49 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202406.1521.v1

Exploring the Microstructural Effect of FeCo Alloy on Carbon Microsphere Deposition and Enhanced Electromagnetic Wave Absorption

Xiaoshu Jia, Heng Zhang, Fang Liu, Qiaojun Yi, Chaolong Li, Xiao Wang, Mingxing Piao

Subject: Chemistry And Materials Science, Materials Science And Technology Keywords: FeCo@CM composites; laminar-stacked FeCo alloy; MPARCVD technique; electromagnetic wave absorption

Online: 21 June 2024 (16:58:47 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202404.0486.v1

A Simplified Model to Predict the Repeated Shear Strain during the Cyclic Triaxial Test by Using an Elastic Coefficient-Damping Ratio System

Darn-Horng Hsiao, Yao-Wen Liang, Chia-Sheng Hsieh

Subject: Engineering, Civil Engineering Keywords: spring-damping system; liquefaction during cyclic triaxial test; repeated strain; spring coefficient; damping coefficient

Online: 8 April 2024 (16:32:43 CEST)

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This study uses a mass-spring-damping system to simulate the repeated strain of liquefaction cyclic triaxial tests. The two results are compared in this paper to understand the feasibility of the mass-spring-damping system developed in this paper and the feasibility of future research on this related topic and development potential. The main factors affecting this mode's repeated strain are the spring coefficient k and the external force Q0. The spring coefficient has an inverse relationship but does not increase in multiples. The external force has a direct proportional relationship but does not increase the result- a non-multiple increase. When the pore water pressure of the liquefied cyclic triaxial test specimen rises, it will cause the specimen to liquefy, decreasing effective stress, shear modulus G, and damping ratio D, causing an increase in strain. The shear modulus and damping ratio are related to the spring coefficients k and c. Both are variables that change with time. This article takes an original thin-tube specimen at point A in the Yunlin area in Taiwan as a testing example. Through Mathematica software, it can be obtained that the mass m=1kg, the spring coefficient k=244e-0.1t kgf/cm, and the damping coefficient c=0.739e-0.257t kgf-s/cm and external force Q0=10.1sin2πt kg; Finally, this study selected the original thin-tube specimens from four locations in the Yunlin area, and simulated the repeated strain amount of the cyclic triaxial test specimens through a spring-damping system. The results show that the spring-damping system is feasible for simulated cyclic triaxial tests because the model is simple and the parameters are easy to understand and obtain, which also shows the extensibility of this model. Preliminary results of the research show that this model can further simulate the repeated strain obtained by cyclic triaxial tests without considering the increased trend in pore water pressure and the decrease in effective stress during cyclic loading.

Preprint ARTICLE | doi:10.20944/preprints202405.0323.v1

Environmental Impact Evaluation of CO₂ Absorption and Desorption Enhancement by Membrane Gas Absorption: A life Cycle Assessment Study

Fuzhao Li, Yuexia Lv, Jinpeng Bi, Hui Zhang, Wei Zhao, Yancai Su, Tingting Du, Junkun Mu

Subject: Environmental And Earth Sciences, Environmental Science Keywords: CO₂ capture; membrane gas absorption; life cycle assessment; environmental impact

Online: 7 May 2024 (16:40:21 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202306.2109.v1

From Localized Laser Energy Absorption to Absorption Delocalization at Volumetric Glass Modification with Gaussian and Doughnut-Shaped Pulses

Martin Zukerstein, Vladimir P. Zhukov, Yuri P. Meshcheryakov, Nadezhda M. Bulgakova

Subject: Physical Sciences, Optics And Photonics Keywords: volumetric modification; femtosecond laser pulses; laser processing; fused silica; Maxwell’s equations; thermoelastoplastic modeling; laser-induced shock waves

Online: 30 June 2023 (07:50:28 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202405.0673.v1

Upgrading Maize Cultivation in Bosnia and Herzegovina from Rainfed to Irrigated Systems: Use of Remote Sensing Data and the Dual Crop Coefficient Approach to Estimate Evapotranspiration

Sabrija Čadro, Zuhdija Omerović, Daniela Soares, Benjamin Crljenković, Wilk S. Almeida, Milan Šipka, Merima Makaš, Mladen Todorović, Teresa A. Paço

Subject: Biology And Life Sciences, Agricultural Science And Agronomy Keywords: maize evapotranspiration; dual-Kc approach; crop coefficient; satellite data; irrigation; Sentinel-2

Online: 10 May 2024 (10:36:05 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202305.0107.v1

Drag Coefficient Parameterization Under Hurricane Wind Conditions

Alexandra Mikhailovna Kuznetsova, Georgy Alekseyevich Baydakov, Alexander Sergeyevich Dosaev, Yuliya Igorevna Troitskaya

Subject: Environmental And Earth Sciences, Atmospheric Science And Meteorology Keywords: drag coefficient; parameterizations; wave model; spray; ocean-atmosphere boundary layer

Online: 3 May 2023 (07:28:58 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0281.v1

Recovered Foam Impact Absorption Systems

Sara Marcelino-Sádaba, Pablo Benito Hernandez, Miguel Angel Martin Antunes, Pedro Maria Villanueva Roldan, Fernando Veiga

Subject: Engineering, Mechanical Engineering Keywords: foam; impact absorption; recycling; sustainability

Online: 3 September 2024 (16:55:33 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202403.1003.v1

Enhanced Energy Absorption in Bioinspired Combined TPMS-Gyroid and Walled TPMS-Gyroid Lattice Structure Manufactured via Fused Filament Fabrication (FFF)

Dawit Bogale Alemayehu, Masahiro Todoh

Subject: Engineering, Mechanical Engineering Keywords: Keywords; bio-inspired; gyroid lattice, Boolean subtraction; finite element analysis; plastic plateau; densification; energy absorption; relative density; size effect

Online: 18 March 2024 (10:39:43 CET)

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Preprint ARTICLE | doi:10.20944/preprints202009.0612.v1

Water Privatization and Inequality: Gini Coefficient for Water Resources in Chile

Juan Correa-Parra, José Francisco Vergara-Perucich, Carlos Aguirre-Nuñez

Subject: Business, Economics And Management, Accounting And Taxation Keywords: Water; Gini coefficient; concentration; privatization; Chile

Online: 25 September 2020 (11:58:40 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202401.0793.v1

Dynamics of Absorption and Concentration of Anthracene in Radishes

Haruki Shimazu

Subject: Environmental And Earth Sciences, Environmental Science Keywords: anthracene; radish; absorption; concentration

Online: 12 January 2024 (06:12:05 CET)

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Preprint ARTICLE | doi:10.20944/preprints202308.1352.v1

Oral Iron Absorption of Ferric Citrate Hydrate and Hepcidin-25 in Hemodialysis Patients: A Prospective, Multicenter, Observational Riona-Oral Iron Absorption Trial

Naohisa Tomosugi, Yoshitaka Koshino, Chie Ogawa, Kunimi Maeda, Noriaki Shimada, Kimio Tomita, Shoichiro Daimon, Tsutomu Shikano, Kazuyuki Ryu, Toru Takatani, Kazuya Sakamoto, Satonori Ueyama, Daisuke Nagasaku, Masato Nakamura, Shibun Ra, Masataka Nishimura, Chieko Takagi, Yoji Ishii, Noritoshi Kudo, Shinsuke Takechi, Takashi Ishizu, Takamoto Yanagawa, Masamichi Fukuda, Yutaka Nitta, Takayuki Yamaoka, Taku Saito, Suzuko Imayoshi, Momoyo Omata, Joji Oshima, Akira Onozaki, Hiroaki Ichihashi, Yasuhisa Matsushima, Hisahito Takae, Ryoichi Nakazawa, Koichi Ikeda, Masato Tsuboi, Keiko Konishi, Shouzaburo Kato, Maki Ooura, Masaki Koyama, Tsukasa Naganuma, Makoto Ogi, Shigeyuki Katayama, Toshiaki Okumura, Shigemi Kameda, Sayuri Shirai

Subject: Medicine And Pharmacology, Urology And Nephrology Keywords: oral iron absorption; ferric citrate hydrate; hemodialysis; hepcidin-25; iron shift

Online: 18 August 2023 (11:20:29 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201812.0073.v1

Relationship between Water-Permeability Coefficient and Pore-Structure Indicators of Cementitious Materials

Yuya Sakai

Subject: Engineering, Civil Engineering Keywords: pore structure; water permeability; cement paste; mortar; concrete; cemented soil

Online: 6 December 2018 (05:21:05 CET)

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Preprint ARTICLE | doi:10.20944/preprints202401.0586.v1

Spatio-Temporal Dual Kriging with Adaptive Coefficient Drift Function

Chalida Kongsanun, Nawinda Chutsagulprom, Sompop Moonchai

Subject: Computer Science And Mathematics, Applied Mathematics Keywords: geostatistics; spatio-temporal interpolation; spatio-temporal dual kriging; spatio-temporal kriging with external drift; spatio-temporal regression kriging; drift function; adaptive coefficient

Online: 8 January 2024 (13:44:30 CET)

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Preprint ARTICLE | doi:10.20944/preprints202103.0348.v1

Passaggio Peak Coefficient as an Indicator of Singer Advancement

Mateusz Gawlik, Wiesław Wszołek

Subject: Social Sciences, Anthropology Keywords: passaggio; pitch; glissando; singing voice

Online: 12 March 2021 (19:58:40 CET)

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Preprint ARTICLE | doi:10.20944/preprints202310.1141.v1

Determination of Water Requirement and Crop Coefficient of Wheat Crop in Central Ethiopia

Mahlet Wogu Amdneh, Mekonen Ayana Gebul

Subject: Engineering, Other Keywords: Wheat; reference evapotranspiration; crop evapotranspiration; crop coefficient; non-weighing lysimeter

Online: 18 October 2023 (17:31:36 CEST)

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The importance of irrigation in boosting agricultural production and productivity is widely understood. Proper planning and effective and efficient management and operation of irrigation system require crop and site-specific data. Since the last few years, Ethiopia has embarked on expansion of irrigated wheat. However, crop-specific data useful for irrigation planning and management for wheat crop is limited. The objective of this research was to determine water requirements and crop coefficients for wheat crops based on field measurements. The research was carried out at the Debre Zeit Agricultural Research Center in central Ethiopia during the dry season (Bega) of 2021/22. The crop considered for the experiment was durum wheat of the Utuba variety. Two non-weighing lysimeter units were employed to measure the water balance components. The soil moisture was monitored using gravimetric method on daily basis conducted both before and after each irrigation event at various depth intervals. The crop required a total of 115 days to fully mature. The length of the growth of initial, development, mid, and late stages were about 20, 30, 42, and 23 days, respectively. Microsoft Excel was used for the data analysis and the CropWAT8.0 model to estimate the reference evapotranspiration. Crop evapotranspiration (ETc) was determined using the water balance equation, and crop coefficients were computed from ETc and reference evapotranspiration (ETo). The results indicate that the total seasonal water requirement of the crop was 392.75mm. The growth stage-based water requirement was 40.35 mm, 82.44 mm, 238.66 mm, and 31.3 mm during the initial, development, mid, and late growing stages, respectively. For the initial, development, mid, and late stages of wheat growth, the crop coefficient was calculated to be 0.51, 0.83, 1.29, and 0.52, respectively. It was found that a fourth-degree polynomial equation fits well and explains the relationship between day of growth stage and kc of the crop. Although a one-season measurement, the results generated here could be useful for crop-specific data in scarce areas.

Preprint ARTICLE | doi:10.20944/preprints201907.0149.v1

Laboratory Measurement and Analysis of Deteriorated Layer Permeability Coefficient of Corroded Soil-Cement

Qing Jin, Xinzhuang Cui, Junwei Su, Tu Lu, Jieru Wang, Ruonan Han

Subject: Engineering, Civil Engineering Keywords: soil-cement; corrosion; deteriorated layer; permeability coefficient

Online: 10 July 2019 (11:26:42 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202406.0065.v1

Sharp Coefficient Bounds for Starlike Functions Associated with Cosine Function

Rashid Ali, Mohsan Raza, Teodor Bulboaca

Subject: Computer Science And Mathematics, Analysis Keywords: starlike functions; subordination; cosine functions; initial coefficient bounds; Hankel determinants; logarithmic coefficients

Online: 4 June 2024 (02:28:17 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202401.1405.v1

Enhancements of Wave Power Absorption with Arrays and a Vertical Breakwater

Fuat Kara

Subject: Engineering, Energy And Fuel Technology Keywords: mean interaction factor; absorbed wave power; multibody interaction; WECs arrays; method of images

Online: 18 January 2024 (13:55:36 CET)

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Preprint ARTICLE | doi:10.20944/preprints202306.1699.v1

Broadband Waterborne Multiphase Metasurface with Simultaneous Wavefront Manipulation and Energy Absorption

An Yi, Han Zou, Aiguo Zhao

Subject: Engineering, Marine Engineering Keywords: metamaterials; pentamode materials; acoustic metasurface; dispersion curve

Online: 25 June 2023 (02:30:06 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202106.0217.v1

Analysis of Heat Absorption and Collection Based on Solid Structures Collector

Yan Liu, Wenbin Liu, Qing Gao, Yong Huang, Peizhuo Li, Yongzhen Wang

Subject: Engineering, Automotive Engineering Keywords: solar collection; solid structure; heat absorption analysis; collection heat analysis; reflection spectrum

Online: 8 June 2021 (12:06:13 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202308.1099.v1

Ultrahigh Nonlinear Optical Absorption in 2D MXene Films

David Moss

Subject: Physical Sciences, Optics And Photonics Keywords: 2D materials; nonlinear optics; MXene; Z-scan technique

Online: 15 August 2023 (07:11:04 CEST)

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Preprint REVIEW | doi:10.20944/preprints202001.0079.v1

Review of Absorption Oil Content in Water Injection

Aditya Nugraha Ernawan, Alfi Fachrizal, Angga Wijaya, Bima Syahreza, Muhammad Ridwan Alkhandi, Mayang Firdaus, Mulyono Dyatmahendri, Rizka Ananda, Wily Rustam, Muhammad Khoirul Afdhol, Tomi Erfando

Subject: Engineering, Industrial And Manufacturing Engineering Keywords: absorption; oil content; water injection; treatment

Online: 9 January 2020 (09:44:35 CET)

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Preprint ARTICLE | doi:10.20944/preprints201905.0110.v1

Estimating Longitudinal Dispersion Coefficient in Natural Streams Using Empirical Models and Machine Learning Algorithms

Katayoun Kargar, Saeed Samadianfard, Javad Parsa, Narjes Nabipour, Shahab Shamshirband, Timon Rabczuk

Subject: Engineering, Civil Engineering Keywords: longitudinal dispersion coefficient; machine learning algorithms; rivers; statistical parameters

Online: 9 May 2019 (12:42:50 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202306.1507.v1

Absorption and Distribution of Imidacloprid and Its Metabolites in goldfish(Carassius Auratus Linnaeus)

Wanghui Xu, Lulu Zhang, Jiayin Hou, Xiaohua Du, Liezhong Chen

Subject: Biology And Life Sciences, Toxicology Keywords: Imidacloprid; Goldfish; Metabolites; Tissue Distribution; Toxicity

Online: 21 June 2023 (08:57:58 CEST)

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Imidacloprid is the first-generation neonicotinoid insecticide. But, the long-term use of im-idacloprid as a pesticide has caused severe water pollution. Recently, the toxicity of imidacloprid to aquatic organisms has received increasing attention. This study aimed to investigate the ab-sorption and distribution of imidacloprid in various tissues (gills, intestine, liver, muscle, brain, and gonads) of goldfish through short-term and continuous exposure tests for 28 days. The re-sults of short-term exposure indicated that the concentration of imidacloprid and its metabolites in tissues at the transfer stage decreased steadily after 1 day of 40 mg/l imidacloprid water treatment and was below the detection limit after 3 days. Continuous exposure for 28 days at various treatment concentrations showed that the concentrations of imidacloprid and its metab-olites differed significantly among the different tissues of the goldfish. In the 20 mg/l treatment group (S1), the highest concentration of imidacloprid was found in the liver (12.04 μg /gtissue), followed by the intestine (9.91 μg /gtissue), muscle (6.20 μg /gtissue), gill (6.11 μg /gtissue), gonads (5.22 μg /gtissue), and brain (2.87 μg /gtissue). In the 40 mg/l treatment group (S2), the order of tissue concentrations was similar to that of the S1 group, with the highest concentration observed in the liver (12.04 μg/gtissue), followed by the intestine (9.91 μg/gtissue), muscle (6.20 μg/gtissue), gill (6.11 μg/gtissue), gonads (5.22 μg/gtissue), and brain (2.87 μg/gtissue). Fur-thermore, the study detected 5-hydroxyimidacloprid, imidacloprid urea, and 6-chloronicotinic acid in imidacloprid metabolites in all tissues, while imidacloprid was detected only in the intes-tine and liver. Overall, the results of this study contribute to a better understanding of the met-abolic behavior of imidacloprid in organisms and provide new data to support the assessment of imidacloprid toxicity in fish.

Preprint ARTICLE | doi:10.20944/preprints202306.2075.v1

Geological Disaster Susceptibility Evaluation of Random Forest Weighted Deterministic Coefficient Model

Shaohan Zhang, Shucheng Tan, Jinxuan Zhou, Yongqi Sun, Duanyu Ding, Jun Li

Subject: Environmental And Earth Sciences, Geophysics And Geology Keywords: geological hazard; susceptibility; random forests; certainty factor; Huize county

Online: 29 June 2023 (08:27:07 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202308.0494.v1

Moisture Absorption Characteristics and Subsequent Mechanical Properties Loss of Enset-PLA Composites

Abebayehu Abdela Gelgelu, Maxim Vandaele, Sam Haenen, Bart Buffel, Frederik Desplentere, Belete Sirahbizu

Subject: Chemistry And Materials Science, Ceramics And Composites Keywords: hydrophilic; PLA; plasticize; ﬁber concentration

Online: 7 August 2023 (10:07:03 CEST)

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Preprint REVIEW | doi:10.20944/preprints202306.1136.v1

Research Status and Future Perspectives of Low Dimensional Electromagnetic Wave Absorption Materials

Huaping Xu, Tao Tang, Zengming Man, Xiaofeng Wu, Haiqiang Zhao, Xiaohui Liang, Chuanying Li

Subject: Chemistry And Materials Science, Electronic, Optical And Magnetic Materials Keywords: electromagnetic wave absorption; attenuation mechanism; low-dimensional materials

Online: 15 June 2023 (12:00:25 CEST)

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Preprint REVIEW | doi:10.20944/preprints202012.0250.v1

Intestinal Absorption of β-Glucans and Their Effect on the Immune System

Shingo Hino, Naomichi Nishimura, Tsukasa Matsuda, Tatsuya Morita

Subject: Biology And Life Sciences, Biochemistry And Molecular Biology Keywords: β-glucan; intestinal absorption; immune system

Online: 10 December 2020 (11:30:57 CET)

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Preprint ARTICLE | doi:10.20944/preprints202008.0290.v1

Ablation-Dominated Arcs in CO² Atmosphere - Part II: Molecule Emission and Absorption

Ralf Methling, Nicolas Götte, Dirk Uhrlandt

Subject: Engineering, Electrical And Electronic Engineering Keywords: circuit breaker; switching arc; optical emission spectroscopy; optical absorption spectroscopy; current zero; SF6 alternative gases; CO2; PTFE; Swan bands; CuF

Online: 13 August 2020 (06:00:47 CEST)

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Working Paper ARTICLE

Features of Structure and Absorption in the Jet-launching Region of M87

Wei Zhao, Xiaoyu Hong, Tao An, Xiaofeng Li, Xiaopeng Cheng, Fang Wu

Subject: Physical Sciences, Astronomy And Astrophysics Keywords: galaxies: individual (m87); galaxies: jets; galaxies: active; radio continuum: galaxies

Online: 1 October 2019 (16:01:28 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202304.0289.v2

Numerical Analysis of SO₂ Absorption inside a Wet Scrubber

Amedeo Amoresano, Giuseppe Langella, Paolo Iodice, Silvia Roscioli

Subject: Engineering, Mechanical Engineering Keywords: Seawater scrubber; SOX; Absorption

Online: 29 April 2023 (02:47:05 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202104.0445.v1

Phase Correction for Absorption Mode Two-dimensional Mass Spectrometry

Marc-André Delsuc, Kathrin Breuker, Maria A. van Agthoven

Subject: Chemistry And Materials Science, Analytical Chemistry Keywords: mass spectrometry; two-dimensional; tandem mass spectrometry; phase correction; absorption mode; data processing

Online: 16 April 2021 (12:41:15 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201911.0028.v1

Hydrogen Sensor Based on Tunable Diode Laser Absorption Spectroscopy

Viacheslav Avetisov, Ove Bjoroey, Junyang Wang, Peter Geiser, Ketil Gorm Paulsen

Subject: Chemistry And Materials Science, Analytical Chemistry Keywords: gas sensor; hydrogen sensor; diode laser; TDLAS; WMS; absorption spectroscopy; laser spectroscopy; hydrogen

Online: 3 November 2019 (18:21:16 CET)

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Preprint ARTICLE | doi:10.20944/preprints202312.0376.v1

Absorption and Biotransformation of Selenomethionine and Selenomethionine-oxide by Wheat Seedlings (Triticum aestivum L.)

Qi Wang, Siyu Huang, Qingqing Huang, Yao Yu, Huafen Li, Yanan Wan

Subject: Biology And Life Sciences, Agricultural Science And Agronomy Keywords: wheat; selenomethionine; selenomethionine-oxide; uptake; Se speciation; interaction

Online: 6 December 2023 (10:39:03 CET)

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Preprint ARTICLE | doi:10.20944/preprints202401.1132.v1

Prognostic Value of Apparent diffusion Coefficient (ADC) in Patients with Diffuse Gliomas

Marija Bušić, Zoran Rumboldt, Dora Čerina, Željko Bušić, Krešimir Dolić

Subject: Medicine And Pharmacology, Oncology And Oncogenics Keywords: glioma, magnetic resonance imaging, apparent diffusion coefficient,biomarkers

Online: 15 January 2024 (14:25:06 CET)

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Preprint ARTICLE | doi:10.20944/preprints202312.2333.v3

Control the Coefficient of a Differential Equation as an Inverse Problem in Time

VLADIMIR TERNOVSKI, VICTOR ILYUTKO

Subject: Computer Science And Mathematics, Computational Mathematics Keywords: optimal control; reachability set; inverse problem

Online: 22 January 2024 (05:43:41 CET)

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Preprint ARTICLE | doi:10.20944/preprints202211.0049.v3

Correction of Sea Brightness Coefficient Satellite Data in the Presence of Dust

Anna Stanislavovna Papkova, Evgeny Borisovich Shybanov

Subject: Environmental And Earth Sciences, Atmospheric Science And Meteorology Keywords: sea brightness coefficient; optical characteristics; ocean color; dust; atmospheric correction

Online: 23 December 2022 (07:27:12 CET)

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Preprint ARTICLE | doi:10.20944/preprints201810.0551.v1

Mass Transfer Coefficient in Multi-Stage Reformer/Membrane Modules for Hydrogen Production

Diego Barba, Mauro Capocelli, Marcello De Falco, Giovanni Franchi, Vincenzo Piemonte

Subject: Engineering, Chemical Engineering Keywords: RMM; membrane modules; modelling; material exchanger; permeation experiments

Online: 24 October 2018 (05:57:34 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201705.0211.v1

Closed-form expression for the dynamic dispersion coefficient in Hagen-Poiseuille flow

Lichun Wang, M. Bayani Cardenas

Subject: Environmental And Earth Sciences, Environmental Science Keywords: solute transport, dispersion, hagen-poiseuille flow, non-fickian

Online: 30 May 2017 (07:53:21 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202309.1093.v1

Novel Method for Ranking Generalized Fuzzy Numbers Based on Normalized Height Coefficient and Benefit and Cost Areas

Thi Hong Phuong Le, Ta-Chung Chu

Subject: Computer Science And Mathematics, Applied Mathematics Keywords: generalized fuzzy numbers; ranking; normalized height coefficient; left area; right area

Online: 18 September 2023 (14:49:30 CEST)

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Preprint REVIEW | doi:10.20944/preprints202306.0266.v1

A Comparative Analysis of Two-Phase Flow Boiling Heat Transfer Coefficient and Correlations for Hydrocarbons and Ethanol

Mohamed ElFaham, Clement C. Tang

Subject: Engineering, Mechanical Engineering Keywords: Flow boiling; Heat transfer coefficient; Two phase flow; hydrocarbons; Ethanol; Flow boiling correlations

Online: 5 June 2023 (08:21:06 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202305.0867.v1

Optimizing Building Thermal Insulation: The Impact of Brick Geometry and Thermal Coefficient on Energy Efficiency and Comfort

Ioannis Makrygiannis, Konstantinos Karalis, Theodosios Dragonas

Subject: Engineering, Energy And Fuel Technology Keywords: thermal insulation; energy efficiency; environmental impact

Online: 11 May 2023 (13:54:19 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202003.0454.v1

A Study on Shock Absorption Characteristics of Honeycomb-inserted Bollards

Sangwon Seon, Kyoungwok Kim, Cheonho Bae, Won Yi

Subject: Engineering, Mechanical Engineering Keywords: bollard; honeycomb; Polylactic acid (PLA); LS-DYNA; shock-absorption; in-plane

Online: 31 March 2020 (10:14:16 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201907.0208.v1

Determination of the Runoff Coefficient (C) in Catchments Based on Analysis of Precipitation and Flow Events

Tais Cardoso, Ronalton Machado, Matheus Mortene

Subject: Environmental And Earth Sciences, Environmental Science Keywords: digital filter; watershed; hydrology

Online: 18 July 2019 (09:11:22 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201903.0268.v1

An Ensemble Method of the Relationship between Diffusion Coefficient and Entropy in the Classical Brownian Motion

Yi Liao, Xiao-Bo Gong

Subject: Physical Sciences, Thermodynamics Keywords: diffusion coefficient；entropy；Brownian motion

Online: 28 March 2019 (13:46:29 CET)

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Preprint ARTICLE | doi:10.20944/preprints202002.0343.v1

Towards Heralded Two-Photon Absorption and Two-Photon Excited Fluorescence for Quantum Microscopy and Spectroscopy

Andreas Jechow

Subject: Physical Sciences, Optics And Photonics Keywords: multi-photon processes; quantum optics; photon statistics; fluorescence

Online: 24 February 2020 (02:57:17 CET)

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Preprint ARTICLE | doi:10.20944/preprints202401.1547.v1

Electrical Conductivity, EMI Absorption Shielding Performance, Curing Process and Mechanical Properties of Rubber Composites

Ján Kruželák, Andrea Kvasničáková, Michaela Džuganová, Rastislav Dosoudil, Ivan Hudec, Henrich Krump

Subject: Chemistry And Materials Science, Polymers And Plastics Keywords: rubber; manganese-zinc ferrite; nickel-zinc ferrite; carbon black; carbon fibers; electromagnetic absorption shielding

Online: 22 January 2024 (04:29:44 CET)

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Preprint ARTICLE | doi:10.20944/preprints202308.0656.v1

Nonlinear Optical Absorption of Impurities in Hexagonal Quantum Wires: Electric and Magnetic Field Effects

Anna Sofía Giraldo-Neira, Tomas Sosa-Giraldo, Juan Alejandro Vinascos-Sánchez, Álvaro Luis Morales Aramburo, Carlos Alberto Duque Echeverri, Miguel Eduardo Mora-Ramos, Ricardo León Restrepo Arango

Subject: Physical Sciences, Condensed Matter Physics Keywords: intraband energy transitions; optical absorption coefficients; hexagonal quantum well wires; GaAs/AlGaAs; core/shell structure

Online: 8 August 2023 (11:20:23 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202304.0890.v1

Investigation of Broadband Optical Nonlinear Absorption and Transient Dynamics in Orange IV Containing Azobenzene

Quanhua Wu, Rui Ruan, Xingxing Li, Yujie Zhao, Yang Li, Yu Fang, Yongqiang Chen, Quanying Wu, Yinglin Song, Xingzhi Wu

Subject: Physical Sciences, Optics And Photonics Keywords: Nonlinear optics; Z-scan; Transient absorption and refraction; Pump probe

Online: 25 April 2023 (05:40:29 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202302.0229.v1

Branching Random Walks with One Particle Generation Center and Possible Absorption at Every Point

Elena Filichkina, Elena Yarovaya

Subject: Computer Science And Mathematics, Probability And Statistics Keywords: branching random walks; moments of particle numbers; evolution operator; Green’s function

Online: 14 February 2023 (03:29:07 CET)

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Preprint ARTICLE | doi:10.20944/preprints202112.0002.v1

Performance Study of Absorption Tower and Adsorption Reactor to Eliminate Ammonia Gas as Pollutant

Ikha Rasti Julia Sari, Januar Arif Fatkhurrahman, Yose Andriani

Subject: Biology And Life Sciences, Biochemistry And Molecular Biology Keywords: ammonia; emission control; saturation point; absorption tower; adsorption reactor

Online: 1 December 2021 (10:22:31 CET)

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Preprint ARTICLE | doi:10.20944/preprints202407.0272.v1

Temperature Dependence of the Thermo-Optic Coefficient of GeO2-doped Silica Glass Fiber

Gaspar Mendes Rego

Subject: Physical Sciences, Optics And Photonics Keywords: silica glass; refractive index; material dispersion; thermo-optic coefficient; cryogenic temperatures

Online: 3 July 2024 (10:39:26 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202406.0543.v1

Impact of Temperature on Seebeck Coefficient of Nodal Line Semimetal in Molecular Conductor

Yoshikazu Suzumura

Subject: Physical Sciences, Condensed Matter Physics Keywords: Seebeck coefficient; nodal line semimetal; single-component molecular conductor; spectral conductivity; DOS; tight-binding model

Online: 10 June 2024 (09:28:10 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202305.0348.v1

Research on Discharge Permit Allocation in Lushui River based on Environmental GINI Coefficient

Nicolas Obin, Fei Ge, Xingwang Liu

Subject: Environmental And Earth Sciences, Environmental Science Keywords: Discharge permit; Environmental Gini coefficient; multi-indicator; total allocation; contribution coefficient

Online: 5 May 2023 (10:14:54 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202011.0244.v1

Uncertainty Assessment for Determining the Discharge Coefficient C for a Multi-Opening Orifice

Andrzej Mrowiec

Subject: Engineering, Automotive Engineering Keywords: volume flow; multi-opening orifice; experimental studies; measurement uncertainty analysis

Online: 6 November 2020 (15:06:27 CET)

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Preprint ARTICLE | doi:10.20944/preprints201811.0348.v1

Poisson-Gamma Mixture Spatially Varying Coefficient Modeling of Small-Area Intestinal Parasites Infection

Frank Badu Osei, Alfred Stein, Anthony Ofosu

Subject: Biology And Life Sciences, Parasitology Keywords: intestinal parasites; spatio-temporal; Poisson-gamma; Bayesian; Integrated Nested Laplace Approximations

Online: 15 November 2018 (06:10:13 CET)

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Preprint ARTICLE | doi:10.20944/preprints202204.0184.v1

Health Assessment of Landing Gear Retraction and Extension Hydraulic System based on Improved Risk Coefficient and FCE Model

Shixuan Duan, Yanjun Li, Yuyuan Cao, Xingye Wang, Xudong Li, Zejian Zhao

Subject: Engineering, Control And Systems Engineering Keywords: health assessment; landing gear retraction and extension hydraulic system; improved risk coefficient; fuzzy comprehensive evaluation; fault simulation; maintenance manual

Online: 20 April 2022 (04:52:38 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202306.1876.v1

Application of Successful EU Funds Absorption Models on Sustainable Regional Development

Marko Šostar, Vladimir Ristanović, Chamaru de Alwis

Subject: Business, Economics And Management, Business And Management Keywords: Sustainable regional development; EU funds; Development projects; Absorption

Online: 28 June 2023 (04:04:18 CEST)

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The research paper comprehensively and consistently addresses all relevant theoretical areas related to the topic and includes an extensive empirical analysis of the absorption of EU funds and their impact on the sustainable development of Croatia, Slovenia, Hungary, and Poland. The analysis aims to investigate the efficiency of the absorption of funds from the EU, the impact of these funds on regional development of countries, as well as the reasons for such impacts. The "Regional Development Model Based on EU Funds" was tested with the aim of applying the model to the Republic of Croatia, countries in the region, and other European countries to achieve a higher level of absorption of financial resources from the available EU funds. Data for the empirical analysis were collected using a highly structured survey questionnaire on a sample of 244 respondents involved in the preparation and implementation of EU-funded projects. The contribution of economic science in theoretical terms arises from the development of scientific knowledge and ideas about the importance of increasing the number of development projects that will increase the absorption of funds from the European Union, thereby increasing economic activities in Croatia and the region. The expected contribution of economic science in the applied sense is based on the formulation of the "Regional Development Model Based on EU Funds," which is based on the application of knowledge, good practices, and stakeholder experiences, considering relevant indicators from available sources. The greatest contribution is demonstrated through testing the "Regional Development Model Based on EU Funds," which is applicable to the Republic of Croatia, countries in the region, and other European countries over a longer period. Finally, research of the impact of EU funds on the regional development of recipient countries is considerably less represented and very modest, only in the "upswing" of systematic scientific research. The research aims to fill the gaps in research and encourage thinking of key stakeholders responsible for regional development, who should eventually realize the importance of defining a regional policy aimed at EU funds as a key to regional development and reducing regional disparities within countries.

Preprint ARTICLE | doi:10.20944/preprints202306.0095.v1

Lightweight Co₃O₄/CC Composites with High Microwave Absorption at Low Frequency

Bing An, Mei Wu, Xinhuang Yang, Zengming Man, Xiaohui Liang, Chunyang Feng

Subject: Chemistry And Materials Science, Materials Science And Technology Keywords: Low frequency; Co3O4/CC; Co-MOFs/CC; thinner thickness

Online: 1 June 2023 (13:35:25 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202305.1226.v1

Geological Hazard Susceptibility Evaluation using Information Quantity, Deterministic Coefficient, and Logistic Regression Models and Their Comparison at Xuanwei, China

Shaohan Zhang, Shucheng Tan, Lifeng Liu, Duanyu Ding, Yongqi Sun, Jun Li

Subject: Environmental And Earth Sciences, Geophysics And Geology Keywords: information model; certainty factor model; logistic regression model; geological hazard; susceptibility; Xuanwei city

Online: 17 May 2023 (10:20:00 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202403.1178.v1

Metamaterial Labyrinth Wall Low-Frequency Sound Absorption Measurements for Restaurant Room Acoustics and Decorative Applications

Rolf Bader, Johannes Mischo, Stefanie Gernert, Hendrik Mischo

Subject: Physical Sciences, Acoustics Keywords: Room Acoustics, Acoustic Metamaterials, Restaurant Acoustics

Online: 20 March 2024 (09:11:45 CET)

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Preprint REVIEW | doi:10.20944/preprints202308.0298.v2

Absorption of Light in Vertical III-V Semiconductor Nanowires for Solar Cell and Photodetector Applications

Nicklas Anttu

Subject: Physical Sciences, Applied Physics Keywords: III-V semiconductor; nanowire; absorption; solar cell; photodetector

Online: 17 August 2023 (07:53:02 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202203.0382.v1

The Characteristic of CFRP Laminates Related to Water Absorption Subjected to Tensile, Bending, and Compression

Sudarisman Sudarisman, Alfian Hidayat, Haniel Haniel, Muhammad Tiopan, Rela Adi Himarosa, Muhammad Akhsin Muflikhun

Subject: Engineering, Mechanical Engineering Keywords: CFRP; vacuum infusion; water absorption; tensile test; bending test; compressive test

Online: 29 March 2022 (12:22:53 CEST)

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Preprint DATA DESCRIPTOR | doi:10.20944/preprints202202.0305.v1

Theoretical Calculations and Analysis Method of the Physicochemical Properties of Phytochemicals to Predict Gastrointestinal Absorption

Luis A. Vélez, Yamixa Delgado, Yancy Ferrer-Acosta, Ivette J. Suárez-Arroyo, Priscilla Rodríguez, Daraishka Pérez

Subject: Biology And Life Sciences, Biochemistry And Molecular Biology Keywords: Physicochemical properties; Gastrointestinal absorption; Lipinski's rules; Veber's rules; Ghose's rules; Muegge's rules

Online: 24 February 2022 (08:35:30 CET)

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Preprint ARTICLE | doi:10.20944/preprints202108.0390.v1

Connection between Sinc Approximation for High-Energy Absorption Cross Section and Shadow of Black Holes

Ali Övgün

Subject: Physical Sciences, Atomic And Molecular Physics Keywords: Gravitation; Black hole; Shadow; High-energy physics; Cross-section; Null geodesics

Online: 18 August 2021 (14:31:11 CEST)

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Working Paper REVIEW

Iron and Zinc Interactions: Does Entero-Pancreatic-Zinc Excretion Cross-Talk with Intestinal Iron Absorption?

Kondaiah Palsa, Puneeta Singh Yaduvanshi, Paul Sharp, Raghu Pullakhandam

Subject: Biology And Life Sciences, Food Science And Technology Keywords: Iron, Zinc, Interactions, DMT1, ZIP4, Pancreas, Metabolism, Homeostasis, Intestine, Caco-2 cells

Online: 9 July 2019 (14:32:11 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202407.1346.v1

Aerodynamic Drag Coefficient Prediction of a Spike Blunt Body Based on K-Nearest Neighbours.

Jonathan Arturo Sanchez-Muñoz, Christian Lagarza-Cortés, Jorge Ramírez-Cruz

Subject: Engineering, Aerospace Engineering Keywords: K nearest neighbours; Aerodynamic Drag Coefficient; Computational Fluid Dynamics; spike blunt body

Online: 16 July 2024 (14:51:47 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202307.0762.v1

Mental Stress Classification based on Selected EEG Channels Using Correlation Coefficient of Hjorth Parameters

Ala Hag, Fares Al-Shargie, Dini Handayani, Houshyar Asadi

Subject: Engineering, Bioengineering Keywords: channel Selection; EEG; Hjorth parameters; machine learning; stress recognition

Online: 12 July 2023 (08:13:07 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202011.0428.v1

On the Fourth Coefficient of the Inverse of a Starlike Function of Positive Order

Toshiyuki Sugawa, Li-Mei Wang

Subject: Computer Science And Mathematics, Algebra And Number Theory Keywords: starlike function of order $\alpha$; inverse function; coefficient estimates

Online: 16 November 2020 (15:08:35 CET)

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Preprint ARTICLE | doi:10.20944/preprints201911.0087.v1

Study on Diffusion Coefficient of Fluorophores in 3D Hydrogel with Cationic Charge using Microchip

Juyoung Jin, Jaesool Shim, Jinseok Kim

Subject: Engineering, Mechanical Engineering Keywords: fluorescence recovery after photo bleaching (FRAP); diffusion coefficient; electric charge; Poly-DADMAC; 3D hydrogel

Online: 8 November 2019 (04:16:49 CET)

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Preprint ARTICLE | doi:10.20944/preprints201904.0324.v1

Multi-Factor Coupling Model of Concrete Chloride-Ion Diffusion Coefficient in a Salt Lake

Liming Zhang, Hongfa Yu, Jia Li

Subject: Engineering, Civil Engineering Keywords: salt-lake environment; concrete; concrete chloride-ion diffusion coefficient; multi-factor coupling model; chloride-ion concentration

Online: 30 April 2019 (11:10:26 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202308.1588.v1

Large Strain Nonlinear Consolidation of Sand-Drained Foundations Considering Vacuum Preloading and the Variation of Radial Permeability Coefficient

Penglu Cui, Wengui Cao, XIngyi Zhang, Jiachao Zhang, Zan Xu

Subject: Engineering, Civil Engineering Keywords: vacuum preloading; sand-drained foundations; large strain; nonlinear consolidation; non-darcy flow; radical permeability coefficient variation

Online: 23 August 2023 (04:50:38 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201905.0364.v1

Laser-Plasma and Self-Absorption Measurements with Applications to Analysis of Atomic and Molecular Stellar Astrophysics Spectra

Christian Parigger, Christopher M Helstern, Ghaneshwar Gautam

Subject: Physical Sciences, Astronomy And Astrophysics Keywords: atomic and molecular spectroscopy; time-resolved spectroscopy; laser plasma; laser-induced optical breakdown; stellar astrophysics spectra; white dwarf stars; hydrogen; carbon Swan spectra

Online: 30 May 2019 (08:53:35 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202405.2009.v1

Characterization of Na_0.5Bi_0.5TiO₃ Single Crystals by X-ray Diffraction, Scanning Electron Microscopy, X-ray Photoelectron Spectroscopy, Optical Absorption, Electric and Thermoelectric Properties Studies

Jan J.Suchanicz, Kamila Kluczewska-Chmielarz, Grzegorz Jagło, Andrzej Kruk, Antoni Kania, Dorota Sitko, Michalina Nowakowska-Malczyk, Marcin Łapiński, Grzegorz Stachowski, Tatiana Kruzina

Subject: Chemistry And Materials Science, Electronic, Optical And Magnetic Materials Keywords: Na_0.5Bi_0.5TiO₃ single crystals; insulator-metal transition; electrical conductivities; relaxation process

Online: 30 May 2024 (10:42:39 CEST)

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High-quality and large-size single crystals of lead-free Na0.5Bi0.5TiO3 were grown using the Czo-chralski technique. The crystals had pure perovskite structure with rhombohedral symmetry and were translucent in the visible and near infrared spectral ranges recorded in the interval 350-1050 nm. The energy gaps determined from the X-ray photoelectron spectroscopy (XPS) and optical measurements were approximately 2.92 eV. The current-voltage characteristics, depolarization current, dc (σdc) and ac (σac) electrical conductivity, and Seebeck coefficient of the crystals were investigated. The frequency/temperature-dependent electrical properties were also measured and analyzed through complex impedance spectroscopy. An overlapping reversible insulator-metal transition (resistive switching) on nanoscales, caused by the electric field, was detected. This was the first time that most of these investigations were performed for this material. The following conductivity mechanisms of NBT single crystals were identified: (i) quasi-free electron and hole conduction and hopping-charges mechanism at low temperatures, (ii) small polaron conductivity in the middle temperature range, and (iii) a significant contribution of the oxygen vacancies to conductivity in the high temperature range. The activation energy values determined from the conductivity data, the imaginary part of the electric impedance and the modulus indicate that the relaxation process in the high-temperature range is attributable to both single and double ionized oxygen vacancies, in combination with the hopping of electrons between Ti4+ and Ti3+. P-type electrical conductivity was also found. These discoveries create new possibilities of reducing the electrical conductivity of NBT and improving the process of effectively poling this material. The density of the electronic states was investigated using an ab initio method. The energy gap cal-culated for NBT (R3c) was 2.8 eV, and is well comparable to those determined from XPS and optical measurements. Our results indicate the possibility of tuning material properties by inten-tionally creating non-stoichiometry/structural defects (oxygen vacancies, cation excess and cation deficiency).

Preprint ARTICLE | doi:10.20944/preprints202309.1819.v1

Absorption-Translocation of Veterinary Antibiotics in Rice Plants Introduced with Irrigation Water

Jae Young Cho, Van Hay Duong, Il-Hwan Seo, Hee Su Jeon

Subject: Environmental And Earth Sciences, Environmental Science Keywords: Veterinary antibiotics; translocation; phytotoxicity; bioconcentration factor; rice paddy

Online: 27 September 2023 (06:57:05 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202306.1509.v1

Noise Reduction in Helicopter Cabins Using Microperforated Panel Composite Sound Absorption Structures

Chenglei Li, Yang Lu, Chunbo Lan, Yang Wang

Subject: Engineering, Aerospace Engineering Keywords: helicopter; cabin noise reduction; microperforated panel; composite acoustic structure; sound field analysis; acoustic metamaterials

Online: 21 June 2023 (08:51:08 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202304.1221.v1

Sustainable Sawdust/Eucalyptol Absorption Matrix for Odor Slow-Release in Plywood Floor

Yuliya Logvina, Sónia Fernandes, Luís Pinto da Silva, Joaquim Esteves da Silva

Subject: Chemistry And Materials Science, Paper, Wood And Textiles Keywords: Carbon footprint; Wood residuals; Sawdust; eucalyptol; Odor release; Plywood; carbon footprint

Online: 29 April 2023 (07:27:51 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202103.0589.v1

Identification of LLDPE Constitutive Material Model for Energy Absorption in Impact Applications

Luděk Hynčík, Petra Kochová, Jan Špička, Tomasz Bońkowski, Robert Cimrman, Sandra Kaňáková, Radek Kottner, Miloslav Pašek

Subject: Chemistry And Materials Science, Biomaterials Keywords: LLDPE; quasi-static and dynamic experimental tests, impact energy absorption; material parameter identification; constitutive material model; validation; simulation

Online: 24 March 2021 (13:38:40 CET)

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Preprint ARTICLE | doi:10.20944/preprints202008.0258.v2

Off-Resonant Absorption Enhancement in Single Nanowires via Graded Dual-Shell Design

Wenfu Liu, Xiaolei Guo, Shule Xing, Haizi Yao, Yinling Wang, Liuyang Bai, Qi Wang, Liang Zhang, Dachuan Wu, Yuxiao Zhang, Xiao Wang, Yasha Yi

Subject: Chemistry And Materials Science, Nanotechnology Keywords: single nanowires; silicon; dual shells; off-resonance; absorption; photocurrent

Online: 31 August 2020 (08:30:22 CEST)

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Preprint COMMUNICATION | doi:10.20944/preprints201908.0192.v1

Generation of Optical Absorption Band in Colloidal Coffee at Extremely Alkaline pH

Arindam Kushagra, Akshaya Pandey

Subject: Chemistry And Materials Science, Applied Chemistry Keywords: caffeine; colloidal coffee; optical absorption; pH sensor; solute-solvent interactions; UV absorber

Online: 19 August 2019 (04:14:30 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201709.0036.v1

Novel Semi-parametric Algorithm for Interference-immune Tunable Absorption Spectroscopy Gas Sensing

Umberto Michelucci, Francesca Venturini

Subject: Physical Sciences, Optics And Photonics Keywords: interference; interference cancellation; noise reduction; digital filtering; spectroscopy; sensors

Online: 11 September 2017 (04:42:08 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202403.0503.v1

Computational Fluid Dynamics Methodology to Estimate the Drag Coefficient of Balls in Rolling Element Bearings

Yann Marchesse, Christophe Changenet, Fabrice Ville

Subject: Engineering, Mechanical Engineering Keywords: rolling element bearing; drag coefficient; computational fluid dynamics; energy efficiency

Online: 8 March 2024 (11:01:12 CET)

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Preprint ARTICLE | doi:10.20944/preprints202311.0240.v1

Fabrication of Lignin/Pbat Biodegradable Plastics Films via Reactive Extrusion and Their Thermal, Mechanical and Water Absorption Properties

Yanyan Dong, Weichang Gao, Zhenbao Luo, Heqing Cai, Aurore Richel, Jialei Liu, Yining Zhang, Zhichao Zhen, Wenqing He, Qi Liu

Subject: Chemistry And Materials Science, Materials Science And Technology Keywords: PBAT; Lignin; Biodegradable; film; fabrication; characterization

Online: 6 November 2023 (01:20:36 CET)

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Preprint ARTICLE | doi:10.20944/preprints202310.0138.v1

Multi-Frequency Differential Absorption LIDAR (DIAL) System for Aerosol and Cloud Retrievals of CO2/H2O and CH4/H2O

Jasper R Stroud, Gerd A Wagner, David F Plusquellic

Subject: Environmental And Earth Sciences, Atmospheric Science And Meteorology Keywords: DIAL; differential absorption lidar; IPDA; integrated path differential absorption LIDAR; cloud aerosol retrievals

Online: 3 October 2023 (09:35:01 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.1447.v1

Photothermal Conversion Performance of Fe3O4/ATO Hybrid Nanofluid for Direct Absorption Solar Collector

Jeonggyun Ham, Hyemin Kim, Honghyun Cho

Subject: Engineering, Mechanical Engineering Keywords: hybrid nanofluid; optical properties; solar weight absorption coefficient; photothermal conversion coefficient; direct absorption solar collector

Online: 19 September 2024 (07:48:43 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202306.0371.v1

Enhanced Electromagnetic Wave Absorption Properties of FeCo-C Alloy by Exploiting Metamaterial Structure

Tang Xuan Duong, Do Khanh Tung, Bui Xuan Khuyen, Nguyen Thi Ngoc Anh, Bui Son Tung, Vu Dinh Lam, Liangyao Chen, Haiyu Zheng, YoungPak Lee

Subject: Chemistry And Materials Science, Electronic, Optical And Magnetic Materials Keywords: metamaterials; broad-band absorption; iron-cobalt alloy; electromagnetic coupling

Online: 6 June 2023 (03:56:25 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202202.0019.v1

Application of Granular Biocomposites Based on Homogenised Peat for Absorption of Oil Products

Kristine Irtiseva, Marika Mosina, Anastasija Tumilovica, Vjaceslavs Lapkovskis, Viktors Mironovs, Jurijs Ozolins, Valentina Stepanova, Andrei Shishkin

Subject: Chemistry And Materials Science, Materials Science And Technology Keywords: sorption; kinetics; peat; cenosphere; oil sorption; Weber-Morris; diffusion model; granules; bio-composite

Online: 1 February 2022 (17:09:59 CET)

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Working Paper ARTICLE

Forbidden Reflections in TeO₂ in the Vicinity of the Te L₁ Absorption Edge

Elena Ovchinnikova, Dmitri Novikov, Matthias Zschornak, Anton Kulikov, Ksenia Kozlovskaya, Vladimir Dmitrienko, Alexey Oreshko, Alexander Blagov, Enver Mukhamedzhanov, Nikita Marchenkov, Mickhail Borisov, Azat Khadiev, Arsen Petrenko, Yury Pisarevsky

Subject: Physical Sciences, Condensed Matter Physics Keywords: X-ray resonant diffraction; forbidden reflections; X-ray spectroscopy

Online: 14 July 2020 (03:37:08 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201909.0049.v1

Deriving Aerosol Absorption Properties from Solar Ultraviolet Radiation Spectral Measurements at Thessaloniki, Greece

Ilias Fountoulakis, Athanasios Natsis, Nikolaos Siomos, Theano Drosoglou, Alkiviadis F. Bais

Subject: Environmental And Earth Sciences, Atmospheric Science And Meteorology Keywords: solar UV radiation; aerosol absorption; SSA; AAOD; spectral measurements; aerosol optical properties

Online: 4 September 2019 (14:29:58 CEST)

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