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The d-orbital coupling modulation of CuNi alloy for acetonitrile electrochemical reduction and in-situ hydrogenation behavior characterization

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Science China Chemistry 2023年第11期66卷 3242-3251页

作者： Boling Liu dong he Zunjian Ke Hongbo Wang Chongyang Tang Qi Zhang Hang Xu Menghua Yang Yafei Yang Qi Liu Xiangheng Xiao School of Physics and Technology Wuhan UniversityWuhan 430072China Wuhan Research Center for Infectious Diseases and Cancer Chinese Academy of Medical SciencesWuhan 430072China Department of Physics City University of Hong KongHong Kong 999077China

Electrochemical reduction of acetonitrile to ethylamine with a high selectivity is a novel approach to manufacture valuable primary amines which are important raw material in organic chemical industry. However, the poor ethylamine Faradic efficiency(FE_(ethylamine)) and catalyst stability at the high current density prohibit this method from being practically used. herein, CuNi alloy ultrafine-nano-particles based on the d-orbital coupling modulation were synthesized through the electrodeposition and their catalytic performance towards acetonitrile reduction reaction(ACNRR) has been systematically studied. The highest FE_(ethylamine)(97%) is achieved with the current density of-114 mA cm^(-2). For practical application, the current density can reach-602.8 mA cm^(-2) with 82.8% FE_(ethylamine)maintained. With the appearance of other organics which co-exist with acetonitrile in the SOHIO process, CuNi can also hydrogenate acetonitrile in it with more than 80% FE_(ethylamine). Our in-situ spectroscopy analysis and DFT calculations towards the acetonitrile hydrogenation behavior reveal that the evenly dispersed Ni in Cu modulates the dband so as to endow CuNi with the better acetonitrile adsorption, milder binding energy with the reaction intermediates, smaller barrier for *CH_3CH_2NH_2 desorption and higher ability for H_2O dissociation to provide *H.

关键词： CuNi alloy acetonitrile reduction reaction d-orbital coupling modulation in-situ spectroscopy analysis acetonitrile adsorption

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Joint space compliance control for a hydraulic quadruped robot based on force feedback

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Journal of Beijing Institute of Technology 2016年第3期25卷 337-345页

作者： WANG Jun-zheng KE Xian-feng WANG Shou-kun he Yu-dong Key Laboratory of Intelligent Control and Decision of Complex System School of Automation Beijing Institute of Technology Beijing 100081 China

In the realm of quadruped robot locomotion,compliance control is imperative to handle impacts when negotiating unstructured *** the same time,kinematic tracking accuracy should be guaranteed during *** meet both demands,ajoint space compliance controller is designed,so that compliance can be achieved in stance phase while position tracking performance can be guaranteed in swing *** operational space compliance control,the joint space compliance control method is easy to implement and does not depend on robot *** for each joint actuator,high performance force control is of great importance for compliance ***,a nonlinear PI controller based on feedback linearization is proposed for the hydraulic actuator force ***,an outer position loop（compliance loop）is closed for each *** are carried out to verify the force controller and compliance of the hydraulic *** robot leg compliance is assessed by a virtual prototyping simulation.

关键词： hydraulic quadruped robot impact stiffness joint space compliance control nonlinear controller

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新一轮就矿找矿

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地球学报 2015年第2期36卷 141-150页

作者：董和金湖南省国土资源厅湖南长沙410011

本文简要回顾了二十世纪五、六十年代就矿找矿的历史,进而提出新一轮的就矿找矿。相比之下,新一轮就矿找矿具有新的特点。深部找矿实则是一种就矿找矿,地壳连续成矿理论、深部流体(成矿)作用理论、成矿台阶理论都为新一轮就矿找矿提供... 详细信息

本文简要回顾了二十世纪五、六十年代就矿找矿的历史,进而提出新一轮的就矿找矿。相比之下,新一轮就矿找矿具有新的特点。深部找矿实则是一种就矿找矿,地壳连续成矿理论、深部流体(成矿)作用理论、成矿台阶理论都为新一轮就矿找矿提供了理论依据。深部找矿在国内外初显成效,湘中地区亦有很多成功案例。本文从3个方面总结了深部找矿的一些经验标志,即矿种及矿种组合系列标志、花岗岩成矿专属性标志、幔源成因矿床的鉴别标志。此外,辨别成矿流体的深(幔)源标志、加强成矿规律研究、更新观念、引进新技术新方法,都是实际深部找矿工作中需要注意的。

关键词：就矿找矿深部找矿地壳连续成矿深部流体(成矿)作用成矿台阶找矿标志

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热电池FeS_(2)-CoS_(2)复合正极材料利用率的影响因素

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火工品 2025年第1期 70-76页

作者：宋卫兵孙现忠康二维王磊骆静何董琦白银祥钱玉敏西安北方庆华机电有限公司陕西西安710025 北京理工大学物理学院北京100081

采用高能球磨和磁悬浮筛分法制备了不同粒径的FeS_(2)-CoS_(2)复合正极材料,并通过单体电池放电试验研究了LiB/LiCl-LiBr-KBr/FeS_(2)-CoS_(2)热电池中正极材料粒径、正负极质量比和放电温度对正极材料利用率的影响。结果表明:在450℃... 详细信息

采用高能球磨和磁悬浮筛分法制备了不同粒径的FeS_(2)-CoS_(2)复合正极材料,并通过单体电池放电试验研究了LiB/LiCl-LiBr-KBr/FeS_(2)-CoS_(2)热电池中正极材料粒径、正负极质量比和放电温度对正极材料利用率的影响。结果表明:在450℃条件下,当FeS_(2)粒径为7.85~59.12μm时,正极材料利用率随FeS_(2)粒径的减小而增大;当FeS_(2)粒径为3.30~7.85μm时,正极材料利用率随FeS_(2)粒径的减小而减小。FeS_(2)(7.85μm)-CoS_(2)(8.06μm)复合正极单体电池的放电性能最佳,截止电压1.5 V时,其放电比容量为342.4 mA·h·g^(-1),正极材料利用率为48.8%。随着单体电池工作时间的延长,其放电比容量随正负极质量比的减小而增大,在正负极质量比为1.67时,450℃条件下的FeS_(2)-CoS_(2)复合正极单体电池的放电比容量高于400℃和500℃,截止电压1.5 V时,其放电比容量为389.2 mA·h·g-1,正极材料利用率高达55.5%。

关键词：热电池预处理正极材料利用率正负极质量比放电温度

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Choledochoduodenal fistula caused by migration of endoclip after laparoscopic cholecystectomy

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World Journal of Gastroenterology 2014年第16期20卷 4827-4829页

作者： Tao Hong Xie-Qun Xu Xiao-dong he Qiang Qu Bing-Lu Li Chao-Ji Zheng Department of General Surgery Peking Union Medical College HospitalChinese Academy of Medical Sciences and Peking Union Medical College

The wide use of surgical endoclips in laparoscopic surgery has led to a variety of *** endoclips migrating into the common bile duct after laparoscopic cholecystectomy is rare.A migrated endoclip can cause obstruction,serve as a nidus for stone formation,and cause *** the exact pathogenesis is still unknown,it is probably related to improper clip application,subclinical bile leak,inflammation,and subsequent necrosis,allowing the clips to erode directly into the common bile *** present a case of endoclip migrating into the common bile duct and duodenum,resulting in choledochoduodenal fistula after laparoscopic cholecystectomy and a successful reconstruction of the biliary tract by a hepaticojejunostomy with a Roux-en-Y *** case shows that surgical endoclips can penetrate into the intact bile duct wall through serial maceration,and it is believed that careful application of clips may be the only way to prevent their migration after laparoscopic cholecystectomy.

关键词： Biliary obstruction Laparoscopic cholecystectomy Choledochoduodenal fistula

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Esketamine use for anesthesia induction in an ectopic pregnancy patient with hemorrhagic shock:a case report

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Emergency and Critical Care Medicine 2023年第3期3卷 136-138页

作者： Xiaojie Liu Zhen Hua he dong Yanli Zhuo Haichen Chu Tianjun Li Anesthesiology Department The Affiliated Hospital of Qingdao UniversityQingdaoShandongChina Oncology Department The Affiliated Hospital of Qingdao UniversityQingdaoShandongChina

Background Anesthesia induction is challenging in patients with hemodynamic *** has hypnotic,analgesic,and sympathomimetic effects and is the only anesthetic that can increase sympathetic ***,it may be more suitable for patients with hypovolemic *** summary A 40-year-old female patient presented to the emergency department with new-onset abdominal pain and vaginal bleeding for 2 *** of the patient was regular,her self-reported urine pregnancy test was positive half a month earlier,and she had been diagnosed at another hospital 12 days earlier based on a positive blood human chorionic gonadotropin *** ultrasonography demonstrated no pregnancy sac in utero,confirming ectopic *** laparoscopy for ectopic pregnancy should be performed *** administered esketamine for *** Esketamine-based total intravenous anesthesia results in mild hypotension in ectopic pregnancies with hemorrhagic shock.

关键词： Anesthesia induction Case report Esketamine hemorrhagic shock

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China’s Guangxi and Vietnam Laos and Cambodia in Stadiums Investment Cooperation Study

China’s Guangxi and Vietnam Laos and Cambodia in Stadiums I...

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2011 International Conference on Future Computer Science and Education（ICFCSE 2011）

作者： he Wei-dong College of Sports and health Science Guangxi University for Nationalities

China’s Guangxi and Vietnam, Laos and Cambodia build a new platform in tourism culture sports industry for trade and investment exchanges and cooperation. With the methods of literature research statistics method tracking surveys and other research methods, this paper analyzes the status of China’s Guangxi to Vietnam Laos and Cambodia in investment and construction of stadiums. Draw a conclusion: Expanding enterprise development space and expanding market share have gained access to the breakthrough;Building a modern stadium and sports facilities of science configuration have promoted investment and cooperation success in building stadiums, and have effectively promoted the development of regional sports industry.

关键词： Stadiums Facilities Investment cooperation Science Development

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Isolation and characterization of novel peptides from fermented products of Lactobacillus for ulcerative colitis prevention and treatment

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Food Science and Human Wellness 2022年第6期11卷 1464-1474页

作者： dong he Wen Zeng Yi Wang Yifan Xing Kang Xiong Nan Su Chong Zhang Yuan Lu Xinhui Xing School of Chemical Engineering and Light Industry Guangdong University of TechnologyGuangzhou 510006China Key Laboratory for Industrial Biocatalysis Ministry of EducationInstitute of Biochemical EngineeringDepartment of Chemical EngineeringChina Center for Synthetic and Systems BiologyTsinghua UniversityBeijing 100084China Center for Synthetic and Systems Biology Tsinghua UniversityBeijing 100084China Institute of Biopharmaceutical and health Engineering Tsinghua Shenzhen International Graduate SchoolShenzhen 518055China Institute of Biomedical health Technology and Engineering Shenzhen Bay LaboratoryShenzhen 440300China

Ulcerative colitis(UC)is an incurable and highly complex digestive disease affecting millions of people *** to the current therapeutic drugs,bioactive peptides are more promising and safe substances as functional foods or drugs for the prevention and treatment of *** alcohol-soluble components from fermentation broth by fresh wheat germ and apple(AC-WGAF)were found to be effective in UC prevention in dextran sulfate sodium-induced mice in ***,4 novel peptides are identifi ed from AC-WGAF by membrane ultrafi ltration,recycling preparative high-performance liquid chromatography,and matrix-assisted laser desorption–ionization time-of-fl ight/time-of-fl ight mass spectrometry,possessing anticolitis activity via using an in vitro *** of those peptides named T24(PVLGPVRGPFPLL)exhibited the most remarkable anti-colitis activity by preventing tight junction protein loss,maintaining epithelial barrier integrity,and promoting cell proliferation during in vitro and in vivo studies by regulating mitogen-activated protein kinase signaling ***,T24 is a promising peptide as a functional food or novel drug for UC prevention and treatment.

关键词： Ulcerative colitis Peptide Fermentation product Intestinal epithelial barrier Cell proliferation Mitogen-activated protein kinase signaling pathways

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Sex differences in the association between the muscle quality index and the incidence of depression: A cross-sectional study

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World Journal of Psychiatry 2024年第9期14卷 1335-1345页

作者： Gui-Ping Huang Li-Ping Mai Zhi-Jie Zheng Xi-Pei Wang Guo-dong he Institute of Medical Research Guangdong Provincial People’s Hospital(Guangdong Academy of Medical Sciences)Southern Medical UniversityGuangzhou 510080Guangdong ProvinceChina

BACKGROUND Depression presents significant challenges to mental health *** phy-sical activity is highly beneficial to mental and physical health,relatively few stu-dies have conducted on the relationship between *** To investigate the association between muscle quality index(MQI)and incidence of *** The data used in this cross-sectional study were obtained from the 2011-2014 National health and Nutritional Examination Survey,which included informa-tion on MQI,depression,and confounding *** logistic regre-ssion models were employed,while taking into account the complex multi-stage sampling design.A restricted cubic spline model was utilized to investigate the non-linear relationship between the MQI and ***,subgroup analyses were performed to identify influential *** The prevalence of depression in this population was 8.44%.With the adjusted model,the MQI was associated with depression in females(odds ratio=0.68,95%confidence interval:0.49-0.95)but not in males(odds ratio=1.08,95%confidence interval:0.77-1.52).Restricted cubic spline adjustment of all covariates showed a significant negative non-linear relationship between depression and the MQI in *** observed trend indicated an 80%decrease in the risk of depression for each unit increase in MQI,until a value of ***,when the MQI exceeded 2.2,the prevalence of depression increased by 20%for every unit increase in the *** analyses further confirmed that the MQI was negatively associated with *** The MQI was inversely correlated with depression in females but not males,suggesting that females with a higher MQI might decrease the risk of depression.

关键词： Sex differences Muscle quality index Depression National health and Nutrition Examination Survey Population-based study

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Research on Decision Model of Control over Technology Standard Alliance

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Journal of Northeast Agricultural University(English Edition) 2010年第4期17卷 97-102页

作者： MA dong he Mingsheng College of Humanities and Social Sciences Harbin Institute of Technology Harbin 150001 China

Technology standard alliance, as vectors of research, development and circulation for technology standard, has already become an important transformation form from laboratory standard to fact standard for all countries. However, during the process of forming the technology standard alliance, it is a focus for members in the alliance to take control over others. How to construct a scientific and reasonable decision model of control over technology standard alliance is closely related to each enterprise member＇s interest. Under the condition that the risk is neutral, the paper explored necessary and sufficient conditions of knowledge sharing and the most endeavor among enterprise members through constructing a decision model of control over technology standard alliance, and put forward that the joint control model was the best decision model for constructing the technology standard alliance.

关键词： technology standard alliance control joint control

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