Research Progress on Surface Modification of Bipolar Plates for PEMFC by LI Cong, JIN Rongzhen, REN Yanjie, TANG Chunmei, HONG Yue

“…The bipolar plates are one of the core components of the proton exchange membrane fuel cell (PEMFC),and its performance directly affects the output power and service life of the battery stack.Bipolar plates not only connect individual cells into stacks and provide support,but also provide gas flow paths and isolate the anodes and cathodes, playing a key role in the operating performance and lifetime of fuel cells.Due to the harsh service environment of PEMFC, including high temperature, high humidity and acidic environment, the bipolar plates need to have excellent electrical conductivity and corrosion resistance to ensure the efficient and stable operation of the fuel cell.In this paper, the development status and application progress of PEMFC bipolar plates were briefly described.The research and development of surface modification schemes for electrical conductivity and corrosion resistance were emphatically expounded.Moreover, the surface modification schemes of stainless steel, titanium, titanium alloy, aluminum alloy and other metal bipolar plate’ substrates were systematically introduced.The performance characteristics, development trends and existing problems of different metal bipolar plates and their surface modification schemes were compared.Finally, the common problems and development and application prospects of the surface modification of PEMFC metal bipolar plates were discussed.…”
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Cycloid Gear Profile Modification based on Elliptical Method by Chen Zhilong, Wang Jun, Qin Zhengzheng, Zhao Daxing, Wang Quan

“…In order to get a more ideal cycloidal profile,a new cycloid profile modification method is proposed. Under the circumstance of keeping the short coefficient and the eccentricity constant,the contour line of the modified tooth profile is obtained by the elliptical crocheting of the standard theoretical contour line,and the expression of the equation is deduced. …”
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Design of Damping and Control Matrices by Modification of Eigenvalues and Eigenvectors by Vernon H. Neubert

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A Review of Different Modification Technologies for Dietary Fiber by YOU Yanzhi, SU Cuiyang, ZHANG Liang, LI Jinlong, DING Changhe, QIN Lizhe, CHEN Hua, HU Zhijun

“…This review aims to provide a theoretical foundation for the efficient modification of DF. By promoting the high-value transformation of agricultural products, extending the industrial chains, and increasing the added value of products, this review holds significant importance for the sustainable development of agriculture and the advancement of the health food industry.…”
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Investigation of the Impact of Chemical Modifications on the Photostability of Polymethyl Methacrylate by Hanan A. Ibraheem, Gamal A. El-Hiti, Emad Yousif, Dina S. Ahmed, Hassan Hashim, Benson M. Kariuki

“…Another approach is the alteration of polymer structures to enhance their ability to resist photodegradation and photooxidation on exposure to UV light for extended periods in harsh conditions. Polymeric chain modifications have proved to be efficient in increasing the photostability of materials. …”
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A Cuckoo Filter Modification Inspired by Bloom Filter by Hananeh Sasaniyan Asl, Behzad Mozaffari Tazeh kand, Mir Javad Musevi niya

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Modification of Top Profile with Trigonometric Curve for Scroll Compressor by 刘涛, 刘振全

“…The regularity between variation of modification parameters and that of volume efficiency and leakage loss was summarized. …”
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Modification of Homotopy Perturbation method for addressing systems of PDEs by Osama Alkhazaleh

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tRNA modifications: greasing the wheels of translation and beyond by Minjie Zhang, Zhipeng Lu

“…Both tRNAs and small fragments processed from them play many nonconventional roles in addition to translation. tRNA molecules undergo various types of chemical modifications to ensure the accuracy and efficiency of translation and regulate their diverse functions beyond translation. …”
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Modification of dispersed systems by polymers under mechanical treatment by N. A. Bulychev, I. A. Arutunov, C . Eisenbach, V. P. Zubov

“…The pigment surface modification by these polymers was achieved by conventional adsorption as well as by mechanical (ultrasonic and vibrowave) treatment of the pigment dispersion. …”
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Membrane modification strategies for virus removal from water by Yang Li, Xueye Wang, Lehui Ren, Ruobin Dai, Zhiwei Qiu, Huimin Zhou, Zhiwei Wang

“…This review examines recent advancements in membrane modifications aimed at optimizing virus removal efficiency. …”
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RNA modifications: emerging players in the regulation of reproduction and development by Wen Junfei, Zhu Qifan, Liu Yong, Gou Lan-Tao

“…We discuss in detail how those modifications, along with their regulatory proteins, affect RNA processing, structure, localization, stability, and translation efficiency. …”
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Structural modification of supply chains in the imperatives of circular economy by Ivan Kudrenko, Almas Mukhametov, Emin Shahin Aslanov

“…Abstract Global economic and environmental challenges in the development of contemporary society underscore the importance of addressing issues related to the structural modification of supply chains within the context of a circular economy. …”
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Exosomes in neurodegenerative diseases: Therapeutic potential and modification methods by Hongli Chen, Na Li, Yuanhao Cai, Chunyan Ma, Yutong Ye, Xinyu Shi, Jun Guo, Zhibo Han, Yi Liu, Xunbin Wei

“…We introduce the strategies being used to enhance exosome targeting, including genetic engineering, chemical modifications (both covalent, such as click chemistry and metabolic engineering, and non-covalent, such as polyvalent electrostatic and hydrophobic interactions, ligand-receptor binding, aptamer-based modifications, and the incorporation of CP05-anchored peptides), and nanomaterial modifications. …”
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Enhancement of H2-water mass transfer using methyl-modified hollow mesoporous silica nanoparticles for efficient microbial CO2 reduction by Xianghai Bian, Qiangqiang Wang, Runjia Zhou, Yang Ye, Zhongjian Li

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Numerical Investigation of Swirl Recovery from a Transonic Propeller with Swirl Recovery Vanes by S. Raviselvam, V. Parthasarathy

“…Further enhancement of additional thrust of 23N and improvement in the efficiency of the propeller by 3.47% during cruise phase is achieved. …”
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Enhancing the Catalytic Kinetics of Electrodes by using a Multidimensional Carbon Network for Applications in Vanadium Redox Flow Batteries by Lei Zhang, Qiang Ma, Jun‐Ping Hu, Jun Liu, Qi Deng, Pan Ning, Prof. Congshan Zhou, Prof. Xiongwei Wu, Prof. Yuping Wu

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Magnetic copper nanoparticle catalyst on β-cyclodextrin-modifed AlFe2O4 for efficient green synthesis 1H-pyrazolo[1,2-b]phthalazine-5,10-diones by Zahra Moghadasi, Jayanti Makasana, Suhas Ballal, Munther Kadheem, Abhayveer Singh, Kattela Chennakesavulu, Pushpa Negi Bhakuni

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Improvement of the Nonparallel Helical Gear Drive Performance Using the Modified Asymmetric Teeth with Tip Relief by Mohammed Abdulaal Kadhim, Mohammad Qasim Abdulah

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MULTILAYER COMPOSITE PLASMA COATINGS ON SCREEN PROTECTION ELEMENTS BASED ON ZIRCONIUM DIOXIDE by V. A. Okovity, F. I. Panteleenko, V. V. Okovity, V. M. Astashinsky, P. P. Hramtsov, M. Y. Cernik, V. V. Uglov, V. I. Chimanskiy, N. N. Cerenda, S. B. Sobolewski

Subjects: “…material utilization coefficient…”
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