检索结果-南通市图书馆

Heterophase junction engineering-induced Co spin-state modulation of CoSe_(2) for large-current hydrogen evolution reaction

在线全文

学校读者我要写书评

暂无评论

Rare Metals 2024年第6期43卷 2660-2670页

作者： Bao-Chai Xu Ya-Ping Miao Min-Qin Mao don.-Lian Li Song Xie wei-Hong Jin Shu Xiao Jing Wen Zaenab Abd-Allah Zhi-Tian Liu Xiang Peng Paul K.Chu Hubei Key Laboratory of Plasma Chemistry and Advanced Materials School of Materials Science and EngineeringWuhan Institute of TechnologyWuhan 430205China School of Textile Science and Engineering Xi'an Polytechnic UniversityXi'an 710048China Institute of Advanced Wear and Corrosion Resistant and Functional Materials Jinan UniversityGuangzhou 510632China Institute of Safety Science and Engineering South China University of TechnologyGuangzhou 510641China Department of Engineering Manchester Metropolitan UniversityManchester M156BHUK Department of Physics Department of Materials Science and Engineeringand Department of Biomedical EngineeringCity University of Hong KongHong Kong 999077China

Efficient electrocatalysts are vital to large-current hydrogen production in commercial water splitting for green energy ***,a novel heterophase engineering strategy is described to produce polymorphic CoSe_(2)*** composition of the electrocatalysts consisting of both cubic CoSe_(2)(c-CoSe_(2))and orthorhombic CoSe_(2)(o-CoSe_(2))phases can be controlled *** results demonstrate that junction-induced spin-state modulation of Co atoms enhances the adsorption of intermediates and accelerates charge transfer resulting in superior large-current hydrogen evolution reaction(HER)***,the CoSe_(2)based heterophase catalyst with the optimal c-CoSe_(2)content requires an overpotential of merely 240 mV to achieve 1,000 mA·cm^(-2)as well as a Tafel slope of 50.4 mV·dec^(-1).Furthermore,the electrocatalyst can maintain a large current density of 1,500 mA·cm^(-2)for over 320 h without *** results reveal the advantages and potential of heterophase junction engineering pertaining to design and fabrication of low-cost transition metal catalysts for large-current water splitting.

关键词： Heterophase junction Spin-state Hydrogen evolution reaction Large current electrochemical hydrogen production Water splitting

Source model of the 11th July 2004 Zhongba earthquake revealed from the joint inversion of InSAR and seismological data

在线全文

学校读者我要写书评

暂无评论

Earthquake Science 2011年第2期24卷 207-220页

作者： Shengji wei Sidao Ni Xianjie Zha don.Helmberger Seismological Laboratory of California Institute of Technology Pasadena CA 91125 USA Key Laboratory of Dynamical Geodesy Institute of Geodesy and Geophysics Chinese Academy of Sciences Wuhan 430077 China Mengcheng National Geophysical Observatory Department of Earth and Space Science University of Science and Technology of China Hefei 230026 China

We use interferometric synthetic aperture radar （InSAR） and broadband seismic waveform data to estimate a source model of the 11th July, 2004 M W 6.2 Zhongba earthquake, Tibet of China. This event occurred within the seismically active zone of southwestern Tibetan Plateau where the east-west extension of the upper crust is observed. Because of limitations in one pair of InSAR data available, there are trade-offs among centroid depth, rupture area and amount of slip. Available seismic data tightly constrain the focal mechanism and centroid depth of the earthquake but not the horizontal location. Together, two complementary data sets can be used to identify the actual fault plane, better constrain the slip model and event location. We first use regional seismic waveform to estimate point source mechanism, then InSAR data is used to obtain better location. Finally, a joint inversion of teleseismic P-waves and InSAR data is performed to obtain a distributed model. Our preferred point source mechanism indicates a seismic moment of ～2.2×10 18 N·m （～M W 6.2）, a fault plane solution of 171° （342 ° ）/42 ° （48 ° ）/-83 ° （-97 ° ）, corresponding to strike/dip/rake, and a depth of 11 km. The fault plane with strike of 171 ？ and dip of 42° is identified as the ruptured fault with the aid of InSAR data. The preferred source model features compact area of slips between depth of 5–11 km and 10 km along strike with maximum slip amplitude of about 1.5 m.

关键词： finite fault InSAR joint inversion Zhongba earthquake

Nutrition strategies to control post-weaning diarrhea of piglets: From the perspective of feeds

在线全文

学校读者我要写书评

暂无评论

Animal Nutrition 2024年第2期17卷 297-311页

作者： Qingsong Tang Tianyi Lan Chengyu Zhou Jingchun Gao Liuting Wu Haiyang wei Wenxue Li Zhiru Tang Wenjie Tang Hui Diao Yetong Xu Xie Peng Jiaman Pang Xuan Zhao Zhihong Sun Laboratory for Bio-Feed and Molecular Nutrition College of Animal Science and Technology Southwest University Animal Breeding and Genetics Key Laboratory of Sichuan Province Sichuan Animal Science Academy Yibin Academy of Southwest University

Post-weaning diarrhea(PWD) is a globally significant threat to the swine industry. Historically, antibiotics as well as high doses of zinc oxide and copper sulfate have been commonly used to control ***, the development of bacterial resistance and environmental pollution have created an interest in alternative strategies. In recent years, the research surrounding these alternative strategies and the mechanisms of piglet diarrhea has been continually updated. Mechanically, diarrhea in piglets is a result of an imbalance in intestinal fluid and electrolyte absorption and secretion. In general, enterotoxigenic Escherichia coli(ETEC) and diarrheal viruses are known to cause an imbalance in the absorption and secretion of intestinal fluids and electrolytes in piglets, resulting in diarrhea when Cl secretion-driven fluid secretion surpasses absorptive capacity. From a perspective of feedstuffs, factors that contribute to imbalances in fluid absorption and secretion in the intestines of weaned piglets include high levels of crude protein(CP), stimulation by certain antigenic proteins, high acid-binding capacity(ABC), and contamination with deoxynivalenol(don. in the diet. In response, efforts to reduce CP levels in diets,select feedstuffs with lower ABC values, and process feedstuffs using physical, chemical, and biological approaches are important strategies for alleviating PWD in piglets. Additionally, the diet supplementation with additives such as vitamins and natural products can also play a role in reducing the diarrhea incidence in weaned piglets. Here, we examine the mechanisms of absorption and secretion of intestinal fluids and electrolytes in piglets, summarize nutritional strategies to control PWD in piglets from the perspective of feeds, and provide new insights towards future research directions.

关键词： Post-weaning diarrhea Fluid secretion Feed Nutritional regulation strategies Piglet

“矛盾不上交”的历史语境与时代新义——在法治建设中坚持和发展新时代“枫桥经验”

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

法治研究 2024年第3期153卷 12-24页

作者：彭巍浙江大学光华法学院

“矛盾不上交”是“枫桥经验”60年发展中始终未变的关键内容。60年代,毛泽东同志基于特定时代背景和现实语境将“枫桥经验”概括为“矛盾不上交,就地解决”。习近平新时代中国特色社会主义思想引领新时代“枫桥经验”创新发展,为“矛... 详细信息

“矛盾不上交”是“枫桥经验”60年发展中始终未变的关键内容。60年代,毛泽东同志基于特定时代背景和现实语境将“枫桥经验”概括为“矛盾不上交,就地解决”。习近平新时代中国特色社会主义思想引领新时代“枫桥经验”创新发展,为“矛盾不上交”赋予了新的时代属性、拓展了适用领域,并将其发展为法治建设的重要部分。历久弥新的“矛盾不上交”表述,是马克思主义基本原理与中国社会主义建设具体实际的结合,是中国传统法治文化与社会主义法治建设实践的融合,是基层群众语言与中央政治话语的统一。在法治中国建设的时代背景下,强调“矛盾不上交”仍然具有广泛的指导作用和应用价值。

关键词：枫桥经验矛盾不上交矛盾法治

Diagnosis and treatment of acute rejection in the first case of human living-related small bowel transplantation with a long-term survival in China

同方期刊数据库博看期刊评论

在线全文

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2005年第34期11卷 5332-5335页

作者： wei-Liang Song wei-Zhong Wang Guo-Sheng Wu Meng-Bin Li Ji-Peng Li Gang Ji Guang-Long don.Hong-wei Zhang Department of Gastrointestinal Surgery Xijing HospitalFourth Military Medical University Xi'an 710032 Shaanxi Province China

AIM： To report the comprehensive diagnosis and treatment of acute rejection in the first case of living-related small bowel transplantation with a long-term survival in China. METHODS： A 18-year-old boy with short gut syndrome underwent living-related small bowel transplantation, with the graft taken from his father （44-year old）. A segment of 150-cm distal small bowel was resected from the don.r. The ileo-colic artery and vein from the don.r were anastomosed to the infrarenal aorta and vena cava of the recipient respectively. The intestinal continuity was restored with an end-to-end anastomosis between the recipient jejunum and don.r ileum, and the distal end was fistulized. FK506, MMF and prednisone were initially used for post-transplant immunosuppression. Endoscopic observation and mucosal biopsies of the graft were carried out through the terminal ileum enterostomy; serum was collected to detect the levels of IL-2R, IL-4, IL-6 and IL-8. The change of the graft secretion and absorption was observed. RESULTS： Acute rejection was diagnosed promptly and cured. The patient was in good health, 5 years after living- related small bowel transplantation. CONCLUSION： The correct diagnosis and treatment of acute rejection are the key to the long-term survival after living-related small bowel transplantation.

关键词： Rejection Comprehensive diagnosis Small bowel transplantation

MoSST−DAS:The First Generation Geomagnetic DataAssimilation Framework

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Communications in Computational Physics 2008年第1期3卷 85-108页

作者： weijia Kuang Andrew Tangborn weiyuan Jiang don.Liu Zhibin Sun Jeremy Bloxham Zigang wei Planetary Geodynamics Laboratory NASA Goddard Space Flight CenterGreenbeltMDUSA Joint Center for Earth Systems Technology University ofMaryland-Baltimore CountyBaltimoreMDUSA Department of Mathematics and Statistics University of Maryland-Baltimore CountyBaltimoreMDUSA Department of Earth and Planetary Science Harvard UniversityCambridgeMAUSA.

Constraining numerical geodynamo models with surface geomagnetic observationsis very important in many respects:it directly helps to improve numericalgeodynamo models,and expands their geophysical applications beyond geomagnetism.A successful approach to integrate observations with numerical models isdata assimilation,in which Bayesian algorithms are used to combine observationaldata with model outputs,so that the modified solutions can then be used as initialconditions for forecasts of future physical *** this paper,we present the firstgeomagnetic data assimilation framework,which comprises the MoSST core dynamicsmodel,a newly developed data assimilation component(based on ensemble covarianceestimation and optimal interpolation),and geomagnetic field models basedon.paleo,archeo,historical and modern geomagnetic *** overall architecture,mathematical formulation,numerical algorithms and computational techniques of theframework are *** results with 100-year geomagnetic data assimilationand with synthetic data assimilation are presented to demonstrate the operation of thesystem.

关键词： Geomagnetism geodynamo data assimilation ensemble forecasting.

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

“莫漫”重考

语言研究 2024年第1期44卷 100-103页

作者：王彤伟四川大学中国俗文化研究所/文学与新闻学院成都610064

“莫漫”在古典诗词中很常见,前贤有代表性的意见认为其“为同义复词,犹言不许、不要”。我们从诗律对仗的角度入手,发现共时历时材料都不支持这一看法。对仗句中的“莫漫”都不是同义连用,而是“不要胡乱/随便”或“不要空/徒劳”。同... 详细信息

“莫漫”在古典诗词中很常见,前贤有代表性的意见认为其“为同义复词,犹言不许、不要”。我们从诗律对仗的角度入手,发现共时历时材料都不支持这一看法。对仗句中的“莫漫”都不是同义连用,而是“不要胡乱/随便”或“不要空/徒劳”。同类结构“休漫”、唐诗异文材料以及一些非对仗结构中的上下文意都支持“莫漫并非同义复用”这一结论。

关键词：莫漫休漫训诂

不同疑似赤霉病小麦籽粒中脱氧雪腐镰刀菌烯醇和玉米赤霉烯酮含量监测

在线全文

学校读者我要写书评

暂无评论

粮食与油脂 2024年第6期37卷 158-162页

作者：孟晶魏祎上海科茂粮油食品质量检测有限公司上海200333

采用超高效液相色谱-串联质谱(UPLC-MS/MS)建立同时测定小麦中脱氧雪腐镰刀菌烯醇(don.和玉米赤霉烯酮(ZEN)含量的方法。以疑似赤霉病小麦籽粒为研究对象,考察在不同储藏条件下don.ZEN含量的变化情况。结果表明:以乙腈与水(体积比90∶... 详细信息

采用超高效液相色谱-串联质谱(UPLC-MS/MS)建立同时测定小麦中脱氧雪腐镰刀菌烯醇(don.和玉米赤霉烯酮(ZEN)含量的方法。以疑似赤霉病小麦籽粒为研究对象,考察在不同储藏条件下don.ZEN含量的变化情况。结果表明:以乙腈与水(体积比90∶10)作为提取溶剂,样品振荡提取20 min,以乙腈-体积分数0.1%甲酸作为流动相进行梯度洗脱时,don.ZEN在一定的质量浓度范围内均具有良好的线性关系(r>0.999),方法的检出限为5.0μg/kg,定量限为15.0μg/kg,回收率为90.6%~94.6%,变异系数为1.72%~3.45%。储藏试验结果表明,小麦分别在高温高湿和常温条件下储藏一段时间,其don.ZEN含量均未发生显著变化,说明don.ZEN可能主要来源于小麦生长环境中。

关键词：小麦赤霉病脱氧雪腐镰刀菌烯醇玉米赤霉烯酮

GENETIC　CLASSIFICATION　AND　DISTRIBUTION　CHARACTERISTICS　OF　CONTINENTAL　PETROLEUM　SYSTEMS　IN　CHINA

在线全文

学校读者我要写书评

暂无评论

石油勘探与开发 1996年第1期23卷 92-98页

作者： don.Lirong Li wei Fang Xiang(Pesearch Institute of Petroleum Exploration and Development, CNPC, Beijing 100083, P. R. China)

ＧＥＮＥＴＩＣＣＬＡＳＳＩＦＩＣＡＴＩＯＮＡＮＤＤＩＳＴＲＩＢＵＴＩＯＮＣＨＡＲＡＣＴＥＲＩＳＴＩＣＳＯＦＣＯＮＴＩＮＥＮＴＡＬＰＥＴＲＯＬＥＵＭＳＹＳＴＥＭＳＩＮＣＨＩＮＡ￥ＤｏｎＬｉｒｏｎｇ；ＬｉＷｅｉ；Ｆａｎｇ... 详细信息

ＧＥＮＥＴＩＣＣＬＡＳＳＩＦＩＣＡＴＩＯＮＡＮＤＤＩＳＴＲＩＢＵＴＩＯＮＣＨＡＲＡＣＴＥＲＩＳＴＩＣＳＯＦＣＯＮＴＩＮＥＮＴＡＬＰＥＴＲＯＬＥＵＭＳＹＳＴＥＭＳＩＮＣＨＩＮＡ￥ＤｏｎＬｉｒｏｎｇ；ＬｉＷｅｉ；ＦａｎｇＸｉａｎｇ（ＰｅｓｅａｒｃｈＩｎｓ...

关键词： Petroleum province Petroleum supersystem Petroleum system Continental sedimentary basin China