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Dielectric polarization in MgFe_(2)O_(4) co.ting and bulk doping to enhance high-voltage cycling stability of Na_(2/3)Ni_(1/3)Mn_(2/3)O_(2) cathode material

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Journal of Energy Chemistry 2023年第6期81卷 200-211,I0007页

作者： Xiaoqian Xu Yizhen Huang Dan Li Qichang Pan Sijiang Hu Yahao Li Hongqiang Wang Youguo Huang Fenghua Zheng Qingyu Li Guangxi Key Laboratory of Low Carbon Energy Materials School of Chemistry and Pharmaceutical SciencesGuangxi Normal UniversityGuilin 541004GuangxiChina Hubei Provincial co.laborative Innovation Center for New Energy Microgrid College of Electrical Engineering&New EnergyChina Three Gorges UniversityYichang 443002HubeiChina Guangxi Scientific and Technological Achievements Transformation Pilot Research Base of Electrochemical Energy Materials and Devices Guangxi Normal UniversityGuilin 541004GuangxiChina

Charging P2-Na_(2/3)Ni_(1/3)Mn_(2/3)O_(2)to 4.5 V for higher capacity is ***,it leads to severe capacity fading,ascribing to the lattice oxygen evolution and the P2-O2 phase ***,the Mg Fe_(2)O_(4) co.ting and Mg,Fe co.doping were co.structed simultaneously by Mg,Fe surface treatment to suppress lattice oxygen evolution and P2-O2 phase transformation of P2-Na_(2/3)Ni_(1/3)Mn_(2/3)O_(2)at deep *** ex-situ X-ray diffraction(XRD)tests,we found that the Mg,Fe bulk co.doping co.ld reduce the repulsion between transition metals and Na+/vacancies ordering,thus inhibiting the P2-O2 phase transition and significantly reducing the irreversible volume change of the ***,the internal electric field formed by the dielectric polarization of Mg Fe_(2)O_(4) effectively inhibits the outward migration of oxidized O^(a-)(aco.firmed by in situ Raman and ex situ XPS techniques.P2-Na NM@MF-3 shows enhanced high-voltage cycling performance with capacity retentions of 84.8% and 81.3%at 0.1 and 1 C after *** work sheds light on regulating the surface chemistry for Na-layered oxide materials to enhance the high-voltage performance of Na-ion batteries.

关键词： P2-Na_(2/3)Ni_(1/3)Mn_(2/3)O_(2) MgFe_(2)O_(4) Bulk doping Lattice oxygen evolution P2-O2 phase transformation

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Improved dispersion performance and interfacial co.patibility of co.alent-grafted MOFs in mixed-matrix membranes for gas separation

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Green Chemical Engineering 2021年第1期2卷 86-95页

作者： Chongqing Wang Guangjie Ren Kaifeng Wei Donghui Liu Tingting Wu Jinlong Jiang Junfeng Qian yichang Pan co.lege of Chemical Engineering State Key Laboratory of Materials-Oriented Chemical EngineeringNanjing Tech UniversityNanjing210009China Key Laboratory for Palygorskite science and Applied technology of Jiangsu Province Faculty of Chemical EngineeringHuaiyin Institute of TechnologyHuaian223003China Jiangsu Province Key Laboratory of Fine Petrochemical Engineering Changzhou UniversityChangzhouJiangsu ProvinceChina

Mixed-matrix membranes(MMMs)have received much attention due to their processable advantages of polymer and high permeability and/or selectivity of porous metal-organic frameworks(MOFs)***,the interfacial defects caused by poor interaction between MOFs with polymers and the agglomeration phenomenon caused by uneven dispersion of MOFs are co.mon problems in mixed-matrix ***,the priming protoco. is one of solutions to the above problems,but it cannot precisely regulate the dispersion of particles and the interfacial co.patibility between two ***,co.alent grafting of polyimide 6FDA-Durene onto the surface of UiO-66-NH2 can mitigate the aggregation of fillers inside the polymeric matrices and improve the interfacial interaction between two phases,thus significantly improving the co.(2)/CH_(4)separation performance on the as-synthesized *** explored gas transport mechanism indicated that the improved separation was due to the raise of solubility ***,the stronger co.alent bond between fillers and polyimide than physical interaction of priming protoco. also endows the improved anti-plasticization phenomenon for co.(2)/CH_(4)separation.

关键词： Mixed-matrix membrane MOFs Priming co.alent grafting Interfacial co.patibility

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Post-marketing Re-evaluation of Tongxiening Granules (痛泻宁颗粒) in Treatment of Diarrhea-Predominant Irritable Bowel Syndrome:A Multi-center,Randomized,Double-Blind,Double-Dummy and Positive co.trol Trial

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Chinese Journal of Integrative Medicine 2019年第12期25卷 887-894页

作者： TANG Xu-dong ZHANG Sheng-sheng HOU Xiao-hua LI Zhen-hua CHEN Su-ning FENG Pei-min YANG Xiao-nan LI Hui-zhen WU Jie-qiong XIA Pei-jun YANG Xiao-jun ZHOU Heng-jun WANG Hai-yan AI Yao-wei LI Kang Institute of Spleen-Stomach Diseases Xiyuan HospitalChina Academy of Chinese Medical SciencesBeijing(100091)China Department of Gastroenterology Beijing Hospital of Traditional Chinese MedicineCapital Medical UniversityBeijing(100010)China Department of Gastroenterology Union HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan(430022)China Department of Traditional Chinese Medicine Shengjing HospitalChina Medical UniversityShenyang(110004)China Department of Gastroenterology Affiliated Hospital of Chengdu University of Traditional Chinese MedicineChengdu(610075)China Department of Integrated Traditional Chinese and Western Medicine West China Hospital of Sichuan UniversityChengdu(610041)China Department of Gastroenterology the Second Affiliated Hospital of Tianjin University of Traditional Chinese MedicineTianjin(300250)China Department of Gastroenterology the Second Affiliated Hospital of Shaanxi College of Traditional Chinese MedicineXianyang(712000)Shaanxi ProvinceChina Department of Gastroenterology the Second Affiliated Hospital of Shandong Traditional Chinese Medicine UniversityJinan(250001)China Department of Gastroenterology Chongqing Traditional Chinese Medicine HospitalChongqing(400021)China Department of Gastroenterology Harbin Traditional Chinese Medicine HospitalHarbin(150076)China Department of Gastroenterology Yuncheng Central HospitalYuncheng(044031)Shanxi ProvinceChina Department of Gastroenterology The First Hospital of YichangYichang(443000)Hubei ProvinceChina Harbin co.cise Pharmaceutical technology Development co. Ltd.Harbin(150001)China

Objective: To evaluate the efficacy and safety of Tongxiening Granules(痛泻宁颗粒, TXNG) in the treatment of irritable bowel syndrome with predominant diarrhea(IBS-D). Methods: A randomized, double-blind, double-dummy, and positive paral el co.trol ed clinical trial was co.ducted from October 2014 to March 2016. Total y 342 patients from 13 clinical centers were enrolled and randomly assigned(at the ratio of 1:1) to a treatment group(171 cases) and a co.trol group(171 cases) by a random co.ing table. The patients in the treatment group were administered oral y with TXNG(5 g per time) co.bined with pinaverium bromide Tablet simulator(50 mg per time), 3 times per day. The patients in the co.trol group were given TXNG simulator(5 g per time) co.bined with pinaverium bromide Tablets(50 mg per time), 3 times per day. The treatment co.rse lasted for 6 weeks. The improvement of Irritable Bowel Syndrome Symptom Severity Sco.e(IBS-SSS) was used to evaluate the primary outco.e. Seco.dary outco.es included adequate relief(AR) rate, Irritable Bowel Syndrome-Quality of Life Questionnaire(IBS-QOL), Hamilton Anxiety Scale(HAMA), Hamilton Depression Scale(HAMD), and the recurrence rate at fol ow-ups. Safety indices including the adverse events(AEs) and related laboratory tests were evaluated. Results: Primary outco.e: IBS-SSS at baseline, weeks 2, 4, 6 showed no statistical significance in both full analysis set(FAS) and per protoco. set(PPS, P>0.05). After 6 weeks of treatment, the total effective rate of IBS-SSS sco.es in the treatment group(147/171, 86.0%) was higher than the co.trol group(143/171, 83.6%) by FAS(P>0.05). In regard to seco.dary outco.es, after 6-week treatment, there was no significant difference in AR rate, total sco.e of IBS-QOL, improvement of HAMD and HAMA total sco.es between the two groups(P>0.05). The recurrence rate at 8-week fol ow-up was 12.35%(10/18) in treatment group and 15.79%(12/76) in co.trol group, respectivery(P>0.05). A total of 21 AEs occurred in 1

关键词： Tongxiening Granules irritable bowel syndrome with predominant diarrhea post-marketing evaluation randomized co.trolled trial

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A case study investigating the efects of emergency vaccination with Brucella abortus A19 vaccine on a dairy farm undergoing an abortion outbreak in China

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Animal Diseases 2022年第4期2卷 246-257页

作者： Yu Wang Yan Wang Qingjie Peng Zhijie Xiang Yingyu Chen Guiqiang Wang Xijuan Wu Aizhen Guo Ian D.Robertson State Key Laboratory of Agricultural Microbiology Huazhong Agricultural UniversityWuhan 430070China co.lege of Veterinary Medicine Huazhong Agricultural UniversityWuhanChina Hubei International Scientifc and Technological co.peration Base of Veterinary Epidemiology Huazhong Agricultural UniversityWuhanChina China-Australia Joint Research and Training Centre for Veterinary Epidemiology Huazhong Agricultural UniversityWuhanChina technology Centre of Bio-Agricultural Angel Yeast CoLtdYichangChina Hubei Hongshan Laboratory Huazhong Agricultural UniversityWuhanChina Hubei Dairy Herd Improvement Center WuhanChina School of Veterinary Medicine Murdoch UniversityPerthWAAustralia

Brucellosis is an important zoonosis that results in substantial eco.omic losses to the livestock industry through abortions and reduced milk *** study investigated an abortion outbreak in a dairy herd and then explored the efects of emergency vaccination with Brucella abortus A19 vaccine on the incidence of abortion and milk yield.A full dose of vaccine(6×10^(10)—12×10^(10)co.ony forming units,CFU)was administered subcutaneously to calves and non-pregnant heifers,and a reduced dose(6×10^(8)—12×10^(8)CFU)to adult co.s and pregnant replacement *** Bengal Test was used to screen Brucella infection status and then positive samples were tested with a *** that tested positive for both tests were co.sidered positive to Brucella *** animal-level seroprevalence of brucellosis was 23.1%(95%CI:17.0,30.2),and the attributable fraction of abortions in seropositive animals was 89.1%(95%CI:64.3,96.7).The odds of seropositivity were signifcantly higher in co.s that aborted co.pared to co.s that calved normally(OR=21.4,95%CI:4.4,168.4).co.s in sheds A2 and C1 were 10.2(95%CI:1.4,128.0)and 17.0(95%CI:2.8,190.3)times more likely to be seropositive than co.s in shed *** were not detectable in most heifers 12 months *** efectiveness of the vaccine in preventing abortions was estimated to be 56.8%(95%CI:15.8,77.8)for the entire herd,but increased to 86.7%(95%CI:4.4,98.1)when only primiparous heifers were ***,a signifcant increase in the average herd 305-day milk yield one-year after vaccination was also observed relative to that in the previous three *** is co.cluded that emergency vaccination of a dairy herd undergoing an abortion outbreak with the A19 vaccine efectively reduced the incidence of abortion and indirectly increased milk yield one-year after vaccination.

关键词： Brucellosis Outbreak investigation Emergency vaccination Brucella abortus A19 vaccine Abortion 305-day milk yield

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Circumjacent distribution pattern of the Lungmachian graptolitic black shale(early Silurian) on the yichang Uplift and its peripheral region

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science China Earth sciences 2018年第9期61卷 1195-1203页

作者： Xu CHEN Qing CHEN Yongyi ZHEN Hongyan WANG Linna ZHANG Junpeng ZHANG Wenhui WANG Zhaohui XIAO CAS Key Laboratory of Eco.omic Stratigraphy and Palaeogeography Nanjing Institute of Geology and Palaeontology and Center for Excellence in Life and Paleoenvironment Chinese Academy of Sciences Academician Studio Zhejiang Nuclear Industry Geological Survey Team Geological Survey of New South Wales W.B.Clarke Geoscience Centre Research Institute of Petroleum Exploration & Development PetroChina State Key Laboratory of Palaeobiology and Stratigraphy Nanjing Institute of Geology and Palaeontology and Center for Excellence in Life and Paleoenvironment Chinese Academy of Sciences Key Laboratory of Metallogenic Prediction of Nonferrous Metals and Geological Environment Monitoring Ministry of Education School of Geosciences and Info-Physics Central South University Huadian Central China Green Energy co. LTD

Stratigraphic hiatuses of variable time intervals within the Rhuddanian to early Aeronian （Llandovery, Silurian） are identified in the area bordering East Chongqing, West Hubei and Northwest Hunan in central China. Their distribution suggested the existence of a local uplift, traditionally named the yichang Uplift. The diachronous nature of the basal black shale of the Lungmachi Formation crossing different belts of this Uplift signifies the various developing stages during the uplifting process. The present paper defines the temporal and spatial distribution pattern of the yichang Uplift, which might be one of the important co.trolling factors for the preservation and distribution of the shale gas in this region, as it has been demonstrated that the shale gas exploration is generally less promising in the areas where more of the basal part of the Lungmachi Formation is missing. Therefore, better understanding of the circumjacent distribution pattern developed throughout the uplifting process may provide the important guidance for the shale gas exploration. The present work is a sister study to the published paper, ＂Stage-progressive distribution pattern of the Lungrnachian black graplolitic shales from Guizhou to Chongqing, Central China＂. These two studies thus provide a co.plete Ordovician-Silurian black shale distribution pattern in the Middle and Upper Yangtze, a region with the major shale gas fields in China.

关键词： yichang Uplift Rhuddanian Aeronian Graptolite biozonation Circumjacent distribution pattern

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Research on Extraction and Purification technology of Flavonoids from Quinoa (Cheuopodium quinoa) Leaves

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Agricultural Biotechnology 2019年第4期8卷 169-172,177页

作者： Wei LYU huilong ZHANG Hongmin LI Haichuan WANG Qiuhong LIU Zhimin WEI The semi-arid Agriculture Engineering&technology Research Center of P.R.China Shijiazhuang 050000China Hebei Jinwantai Fertilizer co. Ltd.Shijiazhuang 050000China Hebei University of Engineering Handan 056001China Hebei Medical University Shijiazhuang 050000China Institude of Millet Crops Hebei Academy of Agriculture and Forestry SciencesCereal Crops Research Laboratory of Hebei ProvinceNational Foxtail Millet Improvement CenterShijiazhuang 050035China

[Objectives]This study was co.ducted to investigate the extraction process of quiona(Cheuopodium quinoa)leaves.[Methods]Firstly,single factor experiments were carried out with the volume fraction of ethanol,extraction time,extraction temperature and liquid-to-material ratio as *** on the single factor experiments,a response surface test was designed by the central co.posite design method of Design-Expert software to establish a mathematical model.[Results]The optimal extraction co.ditions of quinoa flavonoids were obtained as follows:the ethanol volume fraction of 70%,the liquid-to-material ratio at 30∶1,the extraction time of 100 min and the extraction temperature at 60℃.[co.clusions]The results of the study are stable with small deviation,and can provide reference for related processes.

关键词： Quinoa leaf Flavonoid Extraction Response surface methodology

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A Silico. Monoxide Lithium-Ion Battery Anode with Ultrahigh Areal Capacity

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Nano-Micro Letters 2022年第3期14卷 229-243页

作者： Jiang Zhong Tao Wang Lei Wang Lele Peng Shubin Fu Meng Zhang Jinhui Cao Xiang Xu Junfei Liang huilong Fei Xidong Duan Bingan Lu Yiliu Wang Jian Zhu Xiangfeng Duan State Key Laboratory for Chemo/Biosensing and Chemometrics College of Chemistry and Chemical EngineeringSchool of Physics and ElectronicsHunan Key Laboratory of Two‑Dimensional MaterialsEngineering Research Center of Advanced Catalysis of the Ministry of EducationHunan UniversityChangsha 410082People’s Republic of China International Graduate School at Shenzhen Tsinghua UniversityShenzhen 518057People’s Republic of China Key Laboratory of Structures Dynamic Behavior and co.trol of the Ministry of Education Key Laboratory of Smart Prevention and Mitigation of Civil Engineering Disasters of the Ministry of Industry and Information TechnologyHarbin Institute of TechnologyHarbin 150090People’s Republic of China School of Energy and Power Engineering North University of ChinaTaiyuan 030051People’s Republic of China Department of Chemistry and Biochemistry University of CaliforniaLos AngelesCA 90095USA

Silico. monoxide(SiO)is an attractive anode material for next-generation lithium-ion batteries for its ultra-high theoretical capacity of 2680 mAh g−*** studies to date have been limited to electrodes with a rela-tively low mass loading(co.posite for high-mass-loading *** specifically using large-sheet holey graphene building blocks,we co.struct LHGF with super-elasticity and exceptional mechanical robustness,which is essential for acco.modating the large volume change of SiO and ensuring the structure integrity even at ultrahigh mass ***,the 3D porous graphene network structure in LHGF ensures excellent electron and ion *** systematically tailoring microstructure design,we show the LHGF/SiO anode with a mass loading of 44 mg cm^(−2)delivers a high areal capacity of 35.4 mAh cm^(−2)at a current of 8.8 mA cm^(−2)and retains a capacity of 10.6 mAh cm^(−2)at 17.6 mA cm^(−2),greatly exceeding those of the state-of-the-art co.mercial or research ***,we show an LHGF/SiO anode with an ultra-high mass loading of 94 mg cm^(−2)delivers an unprecedented areal capacity up to 140.8 mAh cm^(−2).The achievement of such high areal capacities marks a critical step toward realizing the full potential of high-capacity alloy-type electrode materials in practical lithium-ion batteries.

关键词： Silico. monoxide Large-sheet holey graphene Lithium-ion batteries High mass loading Ultra-high areal capacity

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Analysis of co.bustible gas by distributed neural network

Analysis of combustible gas by distributed neural network

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2012 International co.ference on Power Electronics Engineering and co.puter technology(PEECT 2012)

作者： Tong Ziyuan Tong Minming Dai Xinlian Faculty of Engineering & Information Technologies The University of Sydney Camperdown/Darlington Campus NSW 2006 Australia Sydney Australia co.lege of Information and Electrical Engineering China University of Mining and technology

By the effect of electric field on the sensitivity of catalytic sensor, different outputs co.ld be obtained in adjusted electric field. The process of output signal co.ld make the mixedco.bustible gases analysis possible with single catalytic sensor. In order to process the outputs, distributed neural network was applied. The mixed gases of CH4, co. C2H6 were applied in data training in experiment. by this way, The model of information reco.nition was built. The result proved that the analysis method is feasible. The analysis of gases is very effective in monitoring electrical transformer and dangerous environment.

关键词： gas analysis catalytic sensor distributed neural network

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