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A sulfur self-doped multifunctional biochar catalyst for overall water splitting and a supercapacitor from Camellia japonica flowers

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Carbon Energy 2022年第4期4卷 491-505页

作者： Chengkai Xia Subramani Surendran Seulgi Ji Dohun k.m yujin Chae Jaekyum k.m minyeong Je mi-kyung Han Woo-Seok Choe Chang Hyuck Choi Heechae Choi Jung kyu k.m Uk Sim School of Chemistry Engineering Sungkyunkwan UniversitySuwonRepublic of Korea Hydrogen Energy Technology Laboratory Korea Institute of Energy Technology(KENTECH)NajuRepublic of Korea Department of materials Science&Engineering Chonnam National UniversityGwangjuRepublic of Korea Theoretical materials&Chemistry Group University of CologneCologneGermany Research Institute NEEL SciencesInc.NajuSouth Korea Department of Chemistry Pohang University of Science and Technology(POSTECH)Gyeongsangbuk-doRepublic of Korea

A versatile use of a sulfur self-doped biochar derived from Camellia japonica(camellia)flowers is demonstrated as a multifunctional catalyst for overall water splitting and a *** native sulfur content in the camellia flower facilitates in situ self-doping of sulfur,which highly activates the camellia-driven biochar(SA-Came)as a multifunctional catalyst with the enhanced electron-transfer ability and long-term *** water splitting,an SA-Came-based electrode is highly stable and shows reaction activities in both hydrogen and oxygen evolution reactions,with overpotentials of 154 and 362 mV at 10 mA cm^(−2),*** supercapacitors,SA-Came achieves a specific capacitance of 125.42 F g^(−1)at 2 A g^(−1)and high cyclic stability in a three-electrode system in a 1 m kOH *** demonstrated a high energy density of 34.54 Wh kg^(−1)at a power density of 1600 W kg^(−1)as a symmetric hybrid supercapacitor device with a wide working potential range of 0-1.6 V.

关键词： activated carbon biomass supercapacitor sustainable chemistry water splitting

An ultrapotent RBD-targeted biparatopic nanobody neutralizes broad SARS-CoY-2 variants

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Signal Transduction and Targeted Therapy 2022年第3期7卷 780-789页

作者： Xiaojing Chi Xinhui Zhang Shengnan Pan Yanying Yu yujin Shi Tianli Lin Huarui Duan Xiuying Liu Wenfang Chen Xuehua Yang Lan Chen Xiaoqian Dong Lili Ren Qiang Ding Jianwei Wang Wei Yang NHC key Laboratory of Systems Biology of Pathogens Institute of Pathogen BiologyChinese Academy of Medical Sciences&Peking Union Medical College100176 BeijingChina School of medicine Tsinghua University100084 BeijingChina

The wide transmission and host adaptation of SARS-CoV-2 have led to the rapid accumulation of mutations,posing significant challenges to the effectiveness of vaccines and therapeutic *** several neutralizing antibodies were authorized for emergency clinical use,convalescent patients derived natural antibodies are vulnerable to SARS-CoV-2 Spike mutation.

关键词： neutral antibodies clinical

Electronic Absorption Spectra and Third-Order Nonlinear Optical Property of Dinaphtho[2,3-b:2’,3’-d]Thiophene-5,7,12,13- Tetraone (DNTTRA) and Its Phenyldiazenyl Derivatives: DFT Calculations

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Computational Chemistry 2020年第4期8卷 43-60页

作者： Ziran Chen yujin Zhang Zhanrong He Yonghua Guan Yuan Li Hongping Li Department of Architecture and Environment Engineering Sichuan Vocational and Technical College Suining China Department of Electronic and Electrical Engineering Sichuan Vocational and Technical College Suining China Institute for Energy Research Jiangsu University Zhenjiang China

Third-order nonlinear optical (NLO) materials have broad application prospects in high-density data storage, optical computer, modern laser technology, and other high-tech industries. The structures and frequencies of Dinaphtho[2,3-b:2’,3’-d]thiophene-5,7,12,13-tetraone (DNTTRA) and its 36 derivatives containing azobenzene were calculated by using density functional theory B3LYP and m06-2X methods at 6-311++g(d, p) level, respectively. Besides, the atomic charges of natural bond orbitals (NBO) were analyzed. The frontier orbitals and electron absorption spectra of A-G5 molecule were calculated by TD-DFT (TD-B3LYP/6-311++g(d, p) and TD-m06-2X/6-311++g(d, p)). The NLO properties were calculated by effective finite field FF method and self-compiled program. The results show that 36 molecules of these six series are D-π-A-π-D structures. The third-order NLO coefficients γ (second-order hyperpolarizability) of the D series molecules are the largest among the six series, reaching 107 atomic units (10-33 esu) of order of magnitude, showing good third-order NLO properties. Last, the third-order NLO properties of the azobenzene ring can be improved by introducing strong electron donor groups (e.g. -N(CH3)2 or -NHCH3) in the azobenzene ring, so that the third-order NLO materials with good performance can be obtained.

关键词： Azobenzene Dinaphtho[2 3-b:2’ 3’-d]Thiophene-5 7 12 13-Tetraone Density Functional Theory Electronic Absorption Spectra Third-Order Nonlinear Optical Property

基于BP神经网络的覆岩“两带”高度预测研究

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煤炭科学技术 2021年第8期49卷 53-59页

作者：李奇秦玉金高中宁温州理工学院浙江温州325006 成都理工大学环境与土木工程学院四川成都610059 中国煤炭科工集团沈阳研究院有限公司辽宁沈阳110016

为了研究五阳矿采动影响后上覆岩层卸压带高度变化规律,运用BP神经网络预测分析法,以控制“两带”(垮落带、断裂带)高度的开采方法、工作面长度、工作面推进速度、煤层倾角、覆岩性质、回采高度等致裂因子为输入层,以垮落高度和断裂高... 详细信息

为了研究五阳矿采动影响后上覆岩层卸压带高度变化规律,运用BP神经网络预测分析法,以控制“两带”(垮落带、断裂带)高度的开采方法、工作面长度、工作面推进速度、煤层倾角、覆岩性质、回采高度等致裂因子为输入层,以垮落高度和断裂高度为输出层,借助mATLAB6.x神经网络工具箱,构建了“两带”高度BP神经网络结构,经过BP神经网络模型初始化,BP神经网络模型训练及检验,建立可靠的“两带”高度BP神经网络预测模型。利用BP神经网络预测模型与国外经典预测模型对“两带”高度进行预测对比,得出国外的几种计算方法的误差都比较大,“两带”高度BP神经网络预测模型因其具备非线性函数逼近的特征,计算误差较小;以五阳矿3号煤为研究对象,运用BP神经网络预测模型在多种开采环境下对“两带”高度进行了预测,预测结果与实测结果基本吻合,得出开采方法的改变,影响着“两带”高度变化规律,特定的开采方法条件下“两带”高度与采高呈正相关,增长幅度趋缓;卸采比与采高呈负相关;工作面长与“两带”高度、卸采比均呈正相关,且相关性不受开采方法影响,无论何种开采方法,工作面推进速度与“两带”高度均呈负相关性,且推进速度与“两带”高度线性递减梯度-2.4~4.2 m/(m·d-1),推进速度增至4 m/d时,“两带”高度几乎不变,表明推进速度是“两带”高度发展的抑制因素。研究结果为五阳矿的瓦斯综合治理提供了重要的技术指导。

关键词： BP神经网络煤矿覆岩破坏 “两带”高度

Influencing factors and prevention measures of casing deformation in deep shale gas wells in Luzhou block,southern Sichuan Basin,SW China

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Petroleum Exploration and Development 2023年第4期50卷 979-988页

作者： HAN Lingling LI Xizhe LIU Zhaoyi DUAN Guifu WAN yujin GUO Xiaolong GUO Wei CUI Yue University of Chinese Academy of Sciences Beijing 100049China PetroChina Research Institute of Petroleum Exploration&Development Beijing 100083China Northeast Petroleum University Daqing 163318China

Based on structural distribution and fault characteristics of the Luzhou block,southern Sichuan Basin,as well as microseismic,well logging and in-situ stress data,the casing deformation behaviors of deep shale gas wells are summarized,and the casing deformation mechanism and influencing factors are ***,the risk assessment chart of casing deformation is plotted,and the measures for preventing and controlling casing deformation are ***-activated fault slip is a main factor causing the casing deformation in deep shale gas wells in the Luzhou *** the working area,the approximate fracture angle is primarily 10°-50°,accounting for 65.34%,and the critical pore pressure increment for fault-activation is 6.05-9.71 *** casing deformation caused by geological factors can be prevented/controlled by avoiding the faults at risk and deploying wells in areas with low value of stress *** casing deformation caused by engineering factors can be prevented/controlled by:(1)keeping wells avoid faults with risks of activation and slippage,or deploying wells in areas far from the faulting center if such avoidance is impossible;(2)optimizing the wellbore parameters,for example,adjusting the wellbore orientation to reduce the shear force on casing to a certain extent and thus mitigate the casing deformation;(3)optimizing the casing program to ensure that the curvature radius of the curved section of horizontal well is greater than 200 m while the drilling rate of high-quality reservoirs is not impaired;(4)optimizing the fracturing parameters,for example,increasing the evasive distance,lowering the single-operation pressure,and increasing the stage length,which can help effectively reduce the risk of casing deformation.

关键词： Sichuan Basin Luzhou block shale gas well casing deformation mechanism fault activation risk assessment prevention measure

Sensing of cytoplasmic chromatin by cGAS activates innate immune response in SARS-CoV-2 infection

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Signal Transduction and Targeted Therapy 2021年第12期6卷 3653-3665页

作者： Zhuo Zhou Xinyi Zhang Xiaobo Lei Xia Xiao Tao Jiao Ruiyi ma Xiaojing Dong Qi Jiang Wenjing Wang yujin Shi Tian Zheng Jian Rao Zichun Xiang Lili Ren Tao Deng Zhengfan Jiang Zhixun Dou Wensheng Wei Jianwei Wang Biomedical Pioneering Innovation Center Beijing Advanced Innovation Center for GenomicsPeking-Tsinghua Center for Life SciencesPeking University Genome Editing Research CenterState Key Laboratory of Protein and Plant Gene ResearchSchool of Life SciencesPeking UniversityBeijingChina NHC key Laboratory of Systems Biology of Pathogens Institute of Pathogen BiologyChinese Academy of Medical Sciences and Peking Union Medical College100730 BeijingP.R.China key Laboratory of Respiratory Disease Pathogenomics Chinese Academy of Medical Sciences and Peking Union Medical College100730 BeijingP.R.China Christophe merieux Laboratory Institute of Pathogen BiologyChinese Academy of Medical Sciences and Peking Union Medical College100730 BeijingP.R.China CAS key Laboratory of Pathogenic microbiology and Immunology Institute of MicrobiologyChinese Academy of SciencesBeijing 100101China key Laboratory of Cell Proliferation and Differentiation of the ministry of Education School of Life SciencesPseking UniversityBeijing 100871China Peking-Tsinghua Center for Life Sciences Peking UniversityBeijing 100871China Center for Regenerative medicine Massachusetts General HospitalBostonMAUSA Harvard Stem Cell Institute Harvard UniversityCambridgeMAUSA Department of medicine Massachusetts General HospitalHarvard Medical SchoolBostonMAUSA

The global coronavirus disease 2019(COVID-19)pandemic is caused by severe acute respiratory syndrome coronavirus 2(SARSCoV-2),a positive-sense RNA *** the host immune system senses and responds to SARS-CoV-2 infection remain largely ***,we report that SARS-CoV-2 infection activates the innate immune response through the cytosolic DNA sensing cGAS-STING ***-CoV-2 infection induces the cellular level of 2′3′-cGAmP associated with STING *** recognizes chromatin DNA shuttled from the nucleus as a result of cell-to-cell fusion upon SARS-CoV-2 *** further demonstrate that the expression of spike protein from SARS-CoV-2 and ACE2 from host cells is sufficient to trigger cytoplasmic chromatin upon cell ***,cytoplasmic chromatin-cGAS-STING pathway,but not mAVS-mediated viral RNA sensing pathway,contributes to interferon and pro-inflammatory gene expression upon cell ***,we show that cGAS is required for host antiviral responses against SARS-CoV-2,and a STING-activating compound potently inhibits viral ***,our study reported a previously unappreciated mechanism by which the host innate immune system responds to SARS-CoV-2 infection,mediated by cytoplasmic chromatin from the infected *** the cytoplasmic chromatin-cGAS-STING pathway may offer novel therapeutic opportunities in treating *** addition,these findings extend our knowledge in host defense against viral infection by showing that host cells’self-nucleic acids can be employed as a“danger signal”to alarm the immune system.

关键词： infection Together cGAS

matching of the Gray Whales of off Sakhalin and the Pacific Coast of Japan, with a Note on the Stranding at Wadaura, Japan in march, 2016

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Open Journal of Animal Sciences 2017年第2期7卷 168-178页

作者： Gen Nak.mura Hiroshi katsumata yujin k.m minoru Akagi Ayumi Hirose kazutoshi Arai Hidehiro kato Laboratory of Cetacean Biology Tokyo University of Marine Science and Technology Tokyo Japan k.mogawa Sea World Kamogawa Japan

The coast of Japan is a migratory corridor for the western stock of the gray whales (Eschrichtius robustus), which was once considered as extinct and remains endangered. According to the historical records, from 1955 to 2014, only 21 gray whales occurrence has been recorded in 59 years. However, from 2015 to 2016, intensive occurrence including the seven sightings and the two strandings were noted. In this paper, we found that those sightings were re-sightings of the same individual, which was initially sighted off Sakhalin during August, 2014. On 4 march, 2016, a young female gray whale (8.9 m in body length) was stranded at Wadaura beach, Chiba prefecture. We also conducted research on this animal including taking pictures and external measurements. In addition, we flensed this animal to observe the internal organs and collect a skeletal specimen. The reason for the death of this animal remains unclear;however, from its external characteristics, we identified that this animal was not an identical one, sighted off Sakhalin and the coast of Japan from 2014 to 2016. On 5 April, 2016, another young female gray whale (7 m in body length) was stranded at Arai beach, Shizuoka prefecture. We concluded that from 2015 to 2016, at least three distinct gray whales have migrated along the coast of Japan.

关键词： Gray Whale Eschrichtius robustus Stock Stranding

Genome of Plant maca （Lepidium meyenil） Illuminates Genomic Basis for High-Altitude Adaptation in the Central Andes

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molecular Plant 2016年第7期9卷 1066-1077页

作者： Jing Zhang Yang Tian Liang Yan GuanghuiZhang Xiao Wang Yan Zeng Jiajin Zhang Xiao ma Yuntao Tan Ni Long Yangzi Wang yujin ma Yuqi He Yu Xue Shumei Hao Shengchao Yang Wen Wang Liangsheng Zhang Yang Dong Wei Chen Jun Sheng College of Life Science Huazhong University of Science and Technology Wuhan 430074 China College of Life Sciences Jilin University Changchun 130012 China key Laboratory of Pu-erh Tea Science Ministry of Education Yunnan Agricultural University Kunming 650201 China Pu'er Institute of Pu-erh Tea Pu'er 665000 China Yunnan Research Center on Good Agricultural Practice for Dominant Chinese medicinal materials Yunnan Agricultural University Kunrning 650201 China State key Laboratory of Genetic Resources and Evolution Kunming Institute of Zoology Chinese Academy of Sciences Kunming 650223 China University of Chinese Academy of Sciences Beijing 100049 China School of Science and Information Engineering Yunnan Agricultural University Kunming 650201 China College of Life Science Kunming University of Science and Technology Kunming 650504 China Public Technical Service Center Kunming Institute of Zoology Chinese Academy of Sciences Kunming 650223 China Yunnan University Kunming 650091 China Center for Genomics and Biotechnology Haixia Institute of Science and Technology Fujian Agriculture and Forestry University Fuzhou 350002 China yunnan Research Institute for Local Plateau Agriculture and Industry Kunming 650201 China These authors contributed equally to this article.

maca （Lepidium meyenii Walp, 2n = 8x = 64）, belonging to the Brassicaceae family, is an economic plant cultivated in the central Andes sierra in Peru （4000-4500 m）. Considering that the rapid uplift of the central Andes occurred 5-10 million years ago （ma）, an evolutionary question arises regarding how plants such as maca acquire high-altitude adaptation within a short geological period. Here, we report the high-quality genome assembly of maca, in which two closely spaced maca-specific whole-genome duplications （WGDs; ~6.7 ma） were identified. Comparative genomic analysis between maca and closely related Brassicaceae species revealed expansions of maca genes and gene families involved in abiotic stress response, hormone signaling pathway, and secondary metabolite biosynthesis via WGDs. The retention and subsequent functional divergence of many duplicated genes may account for the morphological and physiological changes （i.e., small leaf shape and self-fertility） in maca in a high-altitude environment. In addition, some duplicated maca genes were identified with functions in morphological adaptation （i.e., LEAF CURLING RESPONSIVENESS） and abiotic stress response （i.e., GL YClNE-RICH RNA-BINDING PROTEINS and DNA-DAmAGE-REPAIR/TOLERATION2） under positive selection. Collectively, the maca genome provides use- ful information to understand the important roles of WGDs in the high-altitude adaptation of plants in the Andes.

关键词： genome sequencing whole-genome duplication high-altitude adaptation Brassicaceae Lepidium,leaf morphogenesis self-incompatibility

Phase-controllable cobalt phosphide heterostructure for efficient electrocatalytic hydrogen evolution in water and seawater

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Electron 2024年第3期2卷 20-30页

作者： Guo Huang yujin Huang Asad Ali Zhijie Chen Pei kang Shen Bing-Jie Ni Jinliang Zhu School of Resources Environment and MaterialsMOE Key Laboratory of New Processing Technology for Nonferrous Metals and MaterialsGuangxi UniversityNanningChina School of Civil and Environmental Engineering The University of New South WalesSydneyNew South WalesAustralia

Cobalt phosphides attract broad attention as alternatives to platinumbased materials towards hydrogen evolution reaction(HER).The catalytic performance of cobalt phosphides largely depends on the phase structure,but figuring out the optimal phase towards HER remains challenging due to their diverse *** our work,a series of cobalt phosphide nanoparticles with different phase structures but similar particle sizes(CoP-Co_(2)P,Co_(2)P-Co,Co_(2)P,and CoP)on a porous carbon network(PC)were accurately *** CoP-Co_(2)P/PC heterostructure demonstrates upgraded HER catalytic activity with a low overpotential of 96.7 and 162.1 mV at 10 mA cm−2 in 1 m kOH and 1 m phosphate-buffered saline solution,respectively,with a long-term(120 h)*** addition,the CoP-Co_(2)P/PC exhibits good HER performance in alkaline seawater,with a small overpotential of 111.2 mV at 10 mA cm^(−2) and a low Tafel slope of 64.2 mV dec^(−1),as well as promising *** functional theory results show that the Co_(2)P side of the CoP-Co_(2)P/PC heterostructure has the best Gibbs free energy of each step for HER,which contributes to the high HER *** study sets the stage for the advancement of high-performance HER electrocatalysts and the implementation of large-scale seawater electrolysis.

关键词： cobalt phosphides electrocatalysts heterostructures porous carbon seawater electrolysis