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SSrN 2023年

作者： Tong, Yi-Hao Wu, Yu-Zhe Xu, Zhen-Liang Luo, Li-Han Jia, rui Han, rui Xu, Sun-Jie State Key Laboratory of Chemical Engineering Membrane Science and Engineering R&D Lab Chemical Engineering Research Center School of Chemical Engineering School of Materials Science and Engineering Shanghai Electronic Chemicals Innovation Institute East China University of Science and Technology Shanghai200237 China

Nowadays, loose nanofiltration (LNF) membranes with effective filtration performance toward textile wastewater have drawn intensive attention. In this work, a high-performance LNF membrane with was prepared via fast co-deposition of bio-inspired TA-based hydrophilic coating with in-situ hydrolysis of tetra butyl titanate (TBT) on polyethersulfone (PES) substrate at a low-cost. Various additives containing amino acid (L(+)-Arginine) and silane coupling agent (KH792) were mixed in the coating solution and researched their synergistic effect during membrane preparation. In-situ growth of TiO2 and co-deposition of TA-based coating endowed the LNF membrane with a uniformly rough hydrophilic surface. Therefore, the optimal LNF membrane showed a significantly high pure water permeability (92.9 L·m-2·h-1·bar-1) with high rejection (>99.0 %) in treating negatively charged dyes including Eriochrome Black T, Congo red, Chlorazol Black T, and Coomassie Brilliant Blue G. Meanwhile, low rejections to inorganic salts (Na2SO4: 7.9 %, NaCl: 2.5 %, MgCl2: 2.8%, MgSO4: 7.3%) were reached, and it kept distinguished filtration performance in dealing with highly saline dye wastewater (containing 50 g·L-1 NaCl and Na2SO4, respectively). Beyond that, the membrane had excellent antifouling properties with low flux decline of multiple model pollutants and long-term stability during filtration dye/salt mixture, which revealed the LNF membrane prepared promising potential in actual textile wastewater treatment. © 2023, The Authors. All rights reserved.

关键词： Coatings

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Tunable high-temperature tunneling magnetoresistance in all-van der Waals antiferromagnet/semiconductor/ferromagnet junctions

arXiv

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arXiv 2024年

作者： Jin, Wen Li, Xinlu Zhang, Gaojie Wu, Hao Wen, Xiaokun Yang, Li Yu, Jie Xiao, Bichen Zhang, Wenfeng Zhang, Jia Chang, Haixin Center for Joining and Electronic Packaging State Key Laboratory of Material Processing and Die & Mold Technology School of Materials Science and Engineering Huazhong University of Science and Technology Wuhan430074 China Shenzhen R&D Center of Huazhong University of Science and Technology Shenzhen518000 China Wuhan National High Magnetic Field Center Institute for Quantum Science and Engineering Huazhong University of Science and Technology Wuhan430074 China School of Physics Wuhan National High Magnetic Field Center Huazhong University of Science and Technology Wuhan430074 China

Magnetic tunnel junctions (MTJs) have been widely applied in spintronic devices for efficient spin detection through the imbalance of spin polarization at the Fermi level. The van der Waals (vdW) nature of two-dimensional (2d) magnets with atomic-scale flat surfaces and negligible surface roughness greatly facilitates the development of MTJs, yet is only restricted to ferromagnets. Here, we report A-type antiferromagnetism in 2d vdW single-crystal (Fe0.8Co0.2)3GaTe2 with TN~203 K in bulk and ~185 K in 9-nm nanosheets. The metallic nature and out-of-plane magnetic anisotropy make it a suitable candidate for MTJ electrodes. By constructing heterostructures based on (Fe0.8Co0.2)3GaTe2/WSe2/Fe3GaTe2, we obtain a large tunneling magnetoresistance (TMr) ratio of 180% at low temperature and the TMr retains at near-room temperature 280 K. Moreover, the TMr is tunable by the electric field down to 1 mV, implying the potential in energy-efficient spintronic devices. Our work provides new opportunities for 2d antiferromagnetic spintronics and quantum devices. © 2024, CC BY-NC-SA.

关键词： Heterojunctions

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A real-Time Friction Prediction Model for in Service drill String Based on Machine Learning Methods Coupling with Mechanical Mechanism Analysis

A Real-Time Friction Prediction Model for in Service Drill S...

引用

2021 SPE Middle East Oil and Gas Show and Conference, MEOS 2021

作者： Guo, Huijuan Luo, Huaidong Zhan, Guodong Wang, Baodong Zhu, Shuo CNPC Engineering Technology R&D Company Limited CNPC Interational Chad Co. Ltd EXPEC Advanced Research Center Saudi Arabia China University of Petroleum-Beijing China

ISBN: (纸本)9781613997727

With highly deviated wells and horizontal wells are widely used in the oil industry. The large slope well sections and long horizontal well sections will lead to a sharp increase of the drill string torque and friction, which may reduce the drilling efficiency, and even lead to accidents. Therefore, real-time and accurate analysis of drill string's torque and friction is an urgent problem facing by the modern drilling technology. The paper established a real-time friction prediction model that combines machine learning methods with drill string mechanical mechanism analysis model. Based on 84000 sets of field monitoring data obtained on-site, a regular data training set for weight on bit (WOB) and torque prediction was constructed with 23 types of time-series related parameters and 10 types of timing independent parameters. relationships between time-series related parameters and timing independent parameters with the weight on bit and torque were trained to utilize long and short-term memory (LSTM) neural network and muti-layer back propagation (BP) network respectively. The new developed LSTM-BP neural network achieves high-precision prediction results of WOB and torque with a relative error of less than 14%. Based on derived WOB and torque prediction results, a theoretical mechanical analysis model of the entire drill string was adopted in this paper to develop the quantitative relation between WOB and torque with the friction coefficient of the drill string and oil casing. Suitable friction coefficients along the drill string can be finally obtained by solving the equilibrium function between predicted WOB, torque and measured hook load, rotary-table torque via an iteration algorithm. A case study was performed finally using the proposed intelligent analysis method to calculate the friction coefficients. This proposed methodology can be referenced to decrease the sticking risks and improve the drilling efficiency, which can finally increase the extension limit o

关键词： Friction

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development of High Mobility Oxide Semiconductor Sputtering Target 29

Development of High Mobility Oxide Semiconductor Sputtering ...

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29th International display Workshops, IdW 2022

作者： Tokuchi, Shigeki Shiranita, ryo Teramura, Kyosuke Yano, Tomoyasu Furuta, Mamoru R&D Center Mitsui Mining & Smelting Co. LTD Saitama362-0021 Japan PVD Materials Division Mitsui Mining & Smelting Co. LTD Fukuoka836-0003 Japan School of Environmental Science and Engineering Kochi University of Technology Kochi782-8502 Japan

We have investigated oxide semiconductor material In-Zn-O-X system to achieve high electron mobility. By choosing appropriate X material and optimizing the composition, we have realized Thin-Film Transistor (TFT) with... 详细信息

关键词： Oxide semiconductors

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double-Joint Motion Planning Method in Park based on High-definition Map

Double-Joint Motion Planning Method in Park based on High-De...

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2021 China Automation Congress, CAC 2021

作者： Sa, Xijing Huang, Hongcheng Gao, ruijin School of Mechanical Engineering Shanghai Jiao Tong University Shanghai China Engineer Technology Department Shanghai Intelligent and Connected Vehicle R&D Center CO.LTD Shanghai China

ISBN: (纸本)9781665426473

In order to solve the turning problem in narrow space, double-Joint Method is proposed in this paper. The spiral has a continuous curvature, but rarely considers road boundary and shape constraints. On the other hand, High-definition map provides prior information of road for motion planning. double-Joint Method utilizes road boundary and curvature of map to determine the target area and a series of pseudo target points of motion planning, generates a series of path respectively, and then design the cost function for selection. Above all, path generation employs two joints for shape determination of cubic spiral by designing the objective function and combining road structure information. The method adds a joint near turning to allow the path more flexible without increasing the degree of the curve. VTd-rOS simulation platform is built to verify. Theoretical and simulation results display proposed method can guide the vehicle turning right in narrow space to obtain a larger turning radius through lane borrow without loss of smoothness. And it is feasible to sacrifice the accuracy of reaching target points to suit special scenario. © 2021 IEEE

关键词： Autonomous vehicles

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Metabolomics mechanism of traditional soy sauce associated with fermentation time

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Food Science and Human Wellness 2022年第2期11卷 297-304页

作者： Li Zhu Siyu He Ying Lu Jianhong Gan Ningping Tao Xichang Wang Zaoli Jiang Yuanxiang Hong Changhua Xu College of Food Science and Technology Shanghai Ocean UniversityShanghai 201306China Shanghai Engineering Research Center of Aquatic-Product Processing&Preservation Shanghai 201306China Laboratory of Quality and Safety Risk Assessment for Aquatic Products on Storage and Preservation(Shanghai) Ministry of AgricultureShanghai 201306China Department of Pharmacology Yale UniversityNew HavenCT06520US Xiamen Gulong Food Co. Ltd.Xiamen 361000China National R&D Branch Center for Freshwater Aquatic Products Processing Technology(Shanghai) Shanghai 201306China

Given that fermentation time has significant impact on quality and flavor of soy sauce,a global understanding of the metabolic mechanism as fermentation time prolonged is essential for producing satisfactory and consistent quality of traditional soy ***,the metabolic compounds changes of soy sauce associated with fermentation time up to 10 years were comprehensively investigated by using Chinese traditional fermented soy sauce(CTFSS)as a *** showed that formaldehyde nitrogen,total soluble nitrogen(TSN),non-salt soluble solids,amino acids,free 5’-nucleotides and volatile compounds in CTFSS changed obviously during ***,glutamic acid and aspartic acid were prominent in *** decrease in content of hypoxanthine(Hx)was found from 1 M(1-month soy sauce)to7 M(7-months soy sauce).Furthermore,a significant opposite tendency for changes between some volatile compounds and amino acids was indicated that there was a transformation between these two ***,a better understanding to the influence of fermentation time on soy sauce had been *** the formation and conversion of amino acids and sugars might be mainly responsible for flavor formation in CTFSS,the ratio of these two reactions rate led the metabolism to be divided into three steps,degradation,conversion and balance.

关键词： Soy sauce Fermentation Amino acids Volatile compounds Flavor Metabolomics

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Overview on the edible mushrooms in Egypt

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Journal of Future Foods 2023年第1期3卷 8-15页

作者： Adel F.Ahmed Ghada Abd-Elmonsef Mahmoud Mohamed Hefzy Zhenhua Liu Changyang Ma Medicinal and Aromatic Plants Researches Department Horticulture Research InstituteAgricultural Research CenterGiza 12619Egypt National R&D Center for Edible Fungus Processing Technology Henan UniversityKaifeng 475004China Joint International Research Laboratory of Food&Medicine Resource Function Kaifeng 475004China Faculty of Science Assiut UniversityAssiut 71516Egypt Botany and Microbiology Department Department of Water Requirement and Field Irrigation ResearchSoilsWater and Environment Research InstituteAgricultural Research CenterGiza 12619Egypt Shenzhen Research Institute of Henan University Shenzhen 518000China Functional Food Engineering Technology Research Center Kaifeng 475004China

Edible Mushrooms have been valued as a valuable food source due to its nutritional and medicinal *** mushrooms contain various bioactive components such as proteins,polyunsaturated fatty acids,polysaccharides,dietary fibers,amino acids,vitamins,and *** have essential health effects,such as antioxidant,antimicrobial,immune-stimulatory,and anticancer,cholesterol-lowering *** of their nutritional and medicinal benefits,mushrooms have become increasingly popular in recent years all over the *** were considered immortality plants in Ancient Egypt and were given to mankind by the god *** were declared a delicacy reserved only for Egyptian nobility due to their distinct *** current study focuses on the common species of edible mushrooms in Egypt and their different bioactive ingredients,nutritional values and the health benefits.

关键词： Edible mushrooms Egypt Bioactive ingredients Health benefits

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Single Event Upset results from the radiation Hardened Electronic Memory Experiment in a Geostationary Orbit

Single Event Upset Results from the Radiation Hardened Elect...

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IEEE Workshop on radiation Effects data

作者： david Alexander Jeffrey Love Alonzo Vera Adam Cover Zach daniels. Wesley Morris david Gifford COSMIAC R&D Center University of New Mexico Albuquerque NM USA Ideas Engineering and Technology Albuquerque Silicon X Inc. Austin Texas USA Vorago Technologies Austin TX USA

results are presented from the third version of the radiation Hardened Electronic Memory Experiment (rHEME-3) performed on the STPSat-6 mission in a geostationary orbit.

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robustly stable intermediate memory states in HfO_(2)-based ferroelectric field-effect transistors

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Journal of Materiomics 2022年第3期8卷 685-692页

作者： Chen Liu Binjian Zeng Siwei dai Shuaizhi Zheng Qiangxiang Peng Jinjuan Xiang Jianfeng Gao Jie Zhao Jincheng Zhang Min Liao Yichun Zhou Key Laboratory of Low Dimensional Materials and Application Technology of Ministry of Education School of Materials Science and EngineeringXiangtan UniversityXiangtan411105China College of Civil Engineering and Mechanics Xiangtan UniversityXiangtan411105China School of Advanced Materials and Nanotechnology Xidian UniversityXi'an710071China Integrated Circuit Advanced Process R&D Center and Institute of Microelectronics of Chinese Academy of Sciences Beijing100029China State Key Discipline Laboratory of Wide Band Gap Semiconductor Technology School of MicroelectronicsXidian UniversityXi'an710071China

Multilevel ferroelectric field-effect transistors(FeFETs)integrated with HfO_(2)-based ferroelectric thin films demonstrate tremendous potential in high-speed massive data storage and neuromorphic computing ***,few works have focused on the stability of the multiple memory states in the HfO_(2)-based *** we firstly report the write/read disturb effects on the multiple memory states in the Hf_(0.5)Zr_(0.5)O_(2)(HZO)-based *** multiple memory states in HZO-based FeFETs do not show obvious degradation with the write and read disturb ***,the retention characteristics of the intermediate memory states in HZO-based FeFETs with unsaturated ferroelectric polarizations are better than that of the memory state with saturated ferroelectric *** the deep analysis of the operation principle of in HZO-based FeFETs,we speculate that the better retention properties of intermediate memory states are determined by the less ferroelectric polarization degradation and the weaker ferroelectric polarization *** experimental and theoretical evidences confirm that the long-term stability of the intermediate memory states in HZO-based FeFETs are as robust as that of the saturated memory state,laying a solid foundation for their practical applications.

关键词： Ferroelectric fieldeffect transistors(FeFETs) Hf_(0.5)Zr_(0.5)O_(2)(HZO) Multiple memory states Write/read disturb retention

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Gravity Induced deposition of Mofs to Construct Mixed-Matrix Substrate for defect-Free and Flexible Mofs Membrane

SSRN

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SSrN 2024年

作者： Zheng, Wenji Guo, Yuehu Li, Ziheng ruan, Xuehua Jiang, Xiaobin Li, Xiangcun dai, Yan He, Gaohong State Key Laboratory of Fine Chemicals R&D Center of Membrane Science and Technology School of Chemical Engineering Ocean and Life Sciences Dalian University of Technology Liaoning Panjin124221 China Panjin Institute of Industrial Technology Liaoning Key Laboratory of Chemical Additive Synthesis and Separation Liaoning Panjin124221 China

Polymer-supported MOFs membranes with high separation performances show great potentials in industrial purification of H2. The key to growing defect-free and adherent MOFs layers on polymer substrates is the abundant and uniformly distributed nucleation sites on the surface of polymer substrates. Therefore, in this work, a mixed-matrix polymer substrate with ZIF-8-rich seed layer was constructed by gravity induced deposition and gradient distribution of ZIF-8 before phase inversion, then under the assistance of Tannic acid (TA), the dense and defect-free ZIF-8 membrane on flexible polymer substrate was fabricated followed by the secondary growth of ZIF-8. The EdS and SEM results of the membrane cross-section confirm the gradient distribution of ZIF-8 seeds, and the resultant membranes are defect-free. The H2 permeance of TA-ZIF-8/ZS-PAN membrane is 953.66 GPU, and the H2/CO2 selectivity is 12.09, which is 80.17% higher than that of ZIF-8/ZS-PAN membrane without TA, exceeding the robeson upper bound in 2008. This improved H2 separation performance is derived from the following reasons. First, gravity-induced ZIF-8 seed deposition constructs a ZIF-8-rich seed layer on the mixed-matrix polymer substrate, which increases the nucleation sites. Second, the introduction of TA during the secondary growth process further increases the nucleation sites by hydroxyl-chelated zinc ions, both of which contribute to the dense ZIF-8 membrane. At the same time, the hydroxyl group in TA is CO2-philic, which can delay CO2 permeation and improve the H2/CO2 separation performance by physically adsorbing CO2. The proposed mixed-matrix substrate by gravity induced deposition of MOFs provides a novel strategy for constructing defect-free and flexible MOFs membrane. © 2024, The Authors. All rights reserved.

关键词： deposition

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