检索结果-南通市图书馆

Practical development and challenges of garnet-structured Li_(7)La_(3)Zr_(2)O_(12) electrolytes for all-solid-state lithium-ion batteries:A review

在线全文

学校读者我要写书评

暂无评论

International Journal of Minerals,Metallurgy and Materials 2021年第10期28卷 1565-1583页

作者： Zao-hong Zhang Tao Wei jia-hao Lu Qi-ming Xiong yue-han ji Zong-yuan Zhu Liu-ting Zhang School of Energy and Power Jiangsu University of Science and TechnologyZhenjiang 212003China Institute of Mechanics and Energy National Research Ogarev Mordovia State UniversitySaransk 430000Russia

All-solid-state Li-ion batteries(ASSLIBs)have been widely studied to achieve Li-ion batteries(LIBs)with high safety and energy *** reviews and experimental papers have focused on methods that improve the ionic conductivity,stabilize the electrochemical performance,and enhance the electrolyte/electrode interfacial compatibility of several solid-state electrolytes(SSEs),including oxides,sulfides,composite and gel electrolytes,and so ***-structured Li_(7)La_(3)Zr_(2)O_(12)(LLZO)is highly regarded an SSE with excellent application ***,this type of electrolyte also possesses a number of disadvantages,such as low ionic conductivity,unstable cubic phase,and poor interfacial compatibility with anodes/*** benefits of LLZO have urged many researchers to explore effective solutions to overcome its inherent ***,we review recent developments on garnet-structured LLZO and provide comprehensive insights to guide the development of garnet-structured LLZO-type *** not only systematically and comprehensively discuss the preparation,element doping,structure,stability,and interfacial improvement of LLZOs but also provide future perspectives for these *** review expands the current understanding on advanced solid garnet electrolytes and provides meaningful guidance for the commercialization of ASSLIBs.

关键词： all solid-state lithium-ion batteries garnet-structured LLZO electrolytes interfacial compatibility polymer-ceramic composite electrolytes

Synthesis,crystal structure and thermal behavior of 4-amino-3,5-dinitropyrazole copper salt

在线全文

学校读者我要写书评

暂无评论

Chinese Chemical Letters 2014年第6期25卷 902-906页

作者： Ying-Lei Wang Feng-Qi Zhao yue-Ping ji jian-Hua Yi Ting An Wei-Xiao Liu Science and Technology on Combustion and Explosion Laboratory Xi'an Modern Chemistry Research Institute

A novel energetic combustion catalyst, 4-amino-3,S-dinitropyrazole copper salt （[Cu（adnp）2（H2O）2]）, was synthesized in a yield of 93.6% for the first time. The single crystal of [Cu（adnp）2（H2O）2] was determined by single crystal X-ray diffraction. It crystallizes in a triclinic system, space group p^-1 with crystal parameters a = 5.541（3） A, b = 7.926（4） A, c = 10.231（5） A,β = 101.372（8）°, V = 398.3（3） A3, Z = 1, μ = 1.467 mm^-1, F（0 0 0） = 243, and Dc = 2.000 g cm^-3. The thermal behavior and non-isothermal decomposition reaction kinetics of [Cu（adnp）2（H2O）2] were studied by means of different heating rate differential scanning calorimetry （DSC）. The kinetic equation of major exothermic decomposition reaction for [Cu（adnp）2（H2O）2] was obtained. The entropy of activation （△S≠）, enthalpy of activation （△H≠）, free energy of activation （△G≠）, the self-accelerating decomposition temperature （TSADT） and the critical temperature of thermal explosion （Tb） are 59.42 j mol^-1 K^-1, 169.5 kJ mol^-1, 1141.26 kJ mol ^-1 457.3 K and 468.1 K, respectively.

关键词： Physical chemistry 4-Amino-3,5-dinitropyrazole copper salt Energetic combustion catalyst Crystal structure Thermal behavior

Heterostructure:application of absorption-catalytic center in lithium-sulfur batteries

在线全文

学校读者我要写书评

暂无评论

Rare Metals 2024年第4期43卷 1461-1487页

作者： Fei Wang Chun-Man Yang Yong-Qi Wang Dan You Wen-Hao Yang Rong-Wei Huang ji-yue Hou Qian Wang Ying-jie Zhang Ying Wang yue-jing Zeng Yi-Yong Zhang Xue Li National Local Joint Engineering Research Center for Lithium-Ion Batteries and Materials Preparation Technology Key Laboratory of Advanced Batteries Materials of Yunnan ProvinceFaculty of Metallurgical and Energy EngineeringKunming University of Science and TechnologyKunming650093China College of Electrical Information Engineering Panzhihua UniversityPanzhihua617000China State Key Laboratory of Physical Chemistry of Solid Surfaces Collaborative Innovation Centre of Chemistry for Energy MaterialsState-Province Joint Engineering Laboratory of Power Source Technology for New Energy VehicleEngineering Research Center of Electrochemical TechnologyMinistry of EducationCollege of Chemistry and Chemical EngineeringXiamen UniversityXiamen361005China

Due to the high theoretical specific capacity(1675 mAh·g^(-1)),low cost,and high safety of the sulfur cathodes,they are expected to be one of the most promising rivals for a new generation of energy storage ***,the shuttle effect,low conductivity of sulfur and its discharge products,volume expansion,and other factors hinder the commercialization of lithium-sulfur batteries(LSBs).The development of sulfur-fixing materials and the design of multifunctional materials to enhance the electrochemical performance of LSBs have been the main research priorities in recent *** of the advantages of high conductivity,built-in electric field,and good synergism,more and more researchers have employed heterostructure into sulfur-fixing materials to enhance the catalytic and absorption ability for *** this review,the principle of heterostructure and the mechanism of enhancing the performance of lithium-sulfur batteries are *** applications of heterostructure in cathode and interlayer of LSBs in the latest years are ***,the cutting-edge troubles and possibilities of heterostructures in LSBs are briefly presented.

关键词： Lithium-sulfur batteries(LSBs) Heterostructure Built-in electric field Catalytic Absorption

Unilateral contrast-induced encephalopathy with contrast medium exudation:A case report

在线全文

学校读者我要写书评

暂无评论

World Journal of Clinical Cases 2023年第10期11卷 2260-2266页

作者： Zhi-Yuan Zhang Hang Lv Pei-jian Wang Dan-Yang Zhao Li-Yong Zhang ji-yue Wang ji-Heng Hao Department of Neurosurgery Liaocheng People’s HospitalLiaocheng 252001Shandong ProvinceChina School of Clinical Medicine Weifang Medical UniversityWeifang 261053Shandong ProvinceChina Department of Neurology Shenyang First People’s HospitalShenyang 110041Liaoning ProvinceChina

BACKGROUND Contrast-induced encephalopathy(CIE)is a rare transient,reversible abnormality in the structure or function of the nervous system caused by the intravascular use of contrast *** can present with a range of neurological manifestations,including focal neurological deficits(hemiplegia,hemianopia,cortical blindness,aphasia,and parkinsonism)and systemic symptoms(confusion,seizures,and coma).However,if not accurately diagnosed and treated in a timely manner,CIE can cause irreversible damage to patients,especially critically ill *** SUMMARY A male in his 50 s,2 h after digital subtraction angiography,had a progressive disorder of consciousness,mixed aphasia,bilateral pupillary sluggish light reflex,and right limb *** hours after the procedure,he developed unconsciousness,high fever(39.5°C),seizures,hemiplegia,neck stiffness(+),and right Babinski signs(+).computed tomography(CT)findings 2 h postprocedure were very confusing and led us to misdiagnose the patient with subarachnoid *** CT was performed again 7 h after the *** with the CT 2 h after the procedure,the CT 7 h after the procedure showed that the manifestations of subarachnoid hemorrhage in the left cerebral hemisphere had disappeared and were replaced by brain tissue swelling,and the cerebral sulci had *** with the clinical manifestations of the patient and after the exclusion of subarachnoid hemorrhage and cerebrovascular embolism,we diagnosed the patient with CIE,and intravenous fluids were given for adequate hydration,as well as mannitol,albumin dehydration,furosemide and the glucocorticoid *** 17 d of active treatment,the patient was discharged with no *** CIE should be taken seriously,but it is easily misdiagnosed,and once CIE is diagnosed,rapid,accurate diagnosis and treatment are critical *** a follow-up examination using a contrast agent can be performed should be closely evalua

关键词： Contrast agents Diagnosis Encephalopathy Mechanisms Treatment

First-principle study of Ba isotopic fractionation during ion exchange processes

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

Acta Geochimica 2022年第1期41卷 121-131页

作者： Xin-yue ji Yan-Fang Wang Le-Cai Xing jian Liu Peng-Dong Wang Tian-Di Zhang Hao-Nan Zhao School of Earth Science and Engineering Hebei University of EngineeringHandan 056038China Key Laboratory of Resource Survey and Research of Hebei Province Hebei University of EngineeringHandan 056038China

The potential utilization and development of the Ba isotope tool depend on an accurateδ^(137/134)Ba determination of the *** the chemical purification,whether the adsorption process on the surface of the ionexchange resin could lead to the Ba isotopic fractionation and the degree of fractionation directly influence the accurateδ^(137/134)Ba *** the present work,first-principles calculations based on the density functional theory were used to quantify the Ba isotopic equilibrium fractionation factor between the aqueous solution and the resin in the acid leaching *** constructing and optimizing the geometric configurations of Ba-containing species,Ba(H_(2)O)_(n)^(2+),Ba(H_(2)O)_(n)Cl_(2),Ba(H_(2)O)_(n)(NO_(3))2,and the adsorbed Ba^(2+)on the surface of the resin,extracting the harmonic vibrational frequencies,we finally at 298 K obtained the fractionations,Δ^(137/134)Ba_(soln-ads)=0.07‰,Δ^(137/134)Ba_(Ba(H_(2)O)_(n)Cl_(2)-ads)=0.05‰,andΔ^(137/134)-Ba^(Ba(H_(2)O)_(n)(NO_(3))2-ads)=0.02‰.Overall,there were almost no Ba isotope fractionations during *** the Ba isotope fractionation can be magnified by the Rayleigh fractionation process in purification,the difference inδ137/134Ba between the initial and final stages did not exceed0.060‰(or 0.045‰)when leaching the standard sample with HCl or HNO_(3),which is equal to or less than the accuracy of Ba isotopic *** a common yield of89.75%,Ba isotopic fractionation induced by incomplete recovery was 0.015‰for HCl(or 0.011‰for HNO_(3)).Finally,if the influence of an incomplete recovery on theδ137/134Ba determination needs to be ignored,the recovery is suggested to be not less than 67%for HCl(or 46%for HNO_(3)).

关键词： Ion exchange Barium Equilibrium isotopic fractionation First-principles calculations Rayleigh fractionation

An experimental study of preventing and treating acute radioactive enteritis with human umbilical cord mesenchymal stem cells

在线全文

学校读者我要写书评

暂无评论

Asian Pacific Journal of Tropical Medicine 2013年第12期6卷 968-971页

作者： Rui Wang Wei Yuan Qiang Zhao Peng Song ji yue Shi-De Lin Ting-Bao Zhao jinan Miltary General Hospital People's Hospital of Zhangqiu

Objective:To test the curative effect of human umbilical cord-derived mesenchymal stem cells on rat acute radioactive enteritis and thus in provide clinical therapeutic basis for radiation ***:Human umbilical cord-derived mesenchymal stem cells were cultivated in vitro and the model of acute radioactive enteritis of rats was ***,the umbilical cord mesenchymal stem cells were injected into the rats via tail *** and histopathiological changes of the experimental rats were ***:After the injection,the rats in the prevention group and treatment group had remarkably better survival status than those in the control *** histological observations revealed that the former also had better intestinal mucosa structure,more regenerative cells and stronger proliferation activity than the ***:Human umbilical cord-derived mesenchymal stem cells have a definite therapeutic effect on acute radioactive enteritis in rats.

关键词： Radioactive contamination Human umbilical cord mesenchymal stem cells Acute radioactive enteritis Rat

Theoretical Risk Assessment of Dietary Exposure to Advantame among the Chinese Population

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

Biomedical and Environmental Sciences 2019年第12期32卷 930-933页

作者： ZHANG ji yue ZHANG jian Bo YU Hang Yu YONG Ling ZHANG Hong WANG Hua Li WENG Yun Xuan China National Center for Food Safety Risk Assessment Beijing 100022China Beijing Key Laboratory of Quality Evaluation Technology for Hygiene and Safety of Plastics Beijing Technology and Business UniversityBeijing 100048China

Advantame,with the chemical name N-[N-[3-(3-hydroxy-4-methoxyphenyl)propyl]-α-aspartyl]L-phenylalanine 1-methyl ester,monohydrate,is an artificial sweetener made by a chemical reaction between vanillin and aspartame,which are both permitted as flavoring and food additives by the China National Food Safety Standard-Standards for Use of Food Additives(GB 2760).As an intense sweetener,advantame is approximately 90-120times sweeter than aspartame and approximately14,000-48,000 times sweeter than saccharose.

关键词： approximate intense chemical

Treatment of corneal dermoid with lenticules from small incision lenticule extraction surgery:a surgery assisted by fibrin glue

在线全文

学校读者我要写书评

暂无评论

International Journal of Ophthalmology(English edition) 2023年第4期16卷 547-553页

作者： jiao-Lian Liu jia-yue ji Qing Ye Liu-Qing Wei Xin Zhong Lin-Zhi jiang jing Zeng Department of Ophthalmology the First Affiliated Hospital of Guangxi Medical UniversityNanning 530021Guangxi Zhuang Autonomous RegionChina Department of Ophthalmology Hubei Provincial Hospital of Integrated Chinese and Western MedicineWuhan 430015Hubei ProvinceChina Department of Ophthalmology Fangchenggang First People’s HospitalFangchenggang 538001Guangxi Zhuang Autonomous RegionChina

AIM:To observe the clinical efficacy of the combined use of small incision lenticule extraction(SMILE)-derived lenticule patches in corneal dermoid excision,with fixation of the lenticule patches assisted by fibrin ***:Seventeen eyes of 17 patients with corneal dermoid were treated with dermoid removal combined with SMILE-derived lenticule *** lenticule patches were fixed by fibrin *** changes were assessed using slit lamp microscopy and anterior-segmental optical coherence *** best-corrected visual acuity(BCVA)and ocular dioptric variations were examined preoperatively and *** pressure(IOP)was also monitored in all visited ***:Totally,18 lenticule patches were used on 17 eyes of 17 cornea dermoid *** mean follow-up time was 11.47±*** lenticule patches we resuccessfullyg lued,kept on its location and maintained transparent during the follow-up time,with a consecutive epithelial cover for *** of the patients could coordinate visual and optometry exam *** preoperative BCVA is 0.60±0.35 in decimal,significantly improved to 0.80±0.26 in decimal at 6mo postoperatively(Z=-2.392,P=0.017),but the changes of their corneal astigmatism diopters showed no significance,with 2.22±1.91 D preoperatively,and 2.28±1.31 D at 6mo postoperatively(Z=-0.135,P=0.893).Limbal pannus formation occurred in 4(23.52%)cases and decreased with the application of tacrolimus *** increased in 2(11.76%)cases,but well decreased by timolol maleate *** the adult patients or guardians of minor patients were satisfied with the cosmetic ***:Dermoid excision combined with transplantation of SMILE-derived lenticule patches using fibrin glue is a safe and effective novel tectonic keratoplasty procedure for corneal dermoid.

关键词： corneal dermoid small incision lenticule extraction fibrin glue

Rotation forest based on multimodal genetic algorithm

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

Journal of Central South University 2021年第6期28卷 1747-1764页

作者： XU Zhe NI Wei-chen ji yue-hui School of Electrical and Electronic Engineering Tianjin University of TechnologyTianjin 300384China Academic Affairs Office Tianjin University of TechnologyTianjin 300384China Tianjin Key Laboratory for Control Theory&Applications in Complicated Industry Systems Tianjin 300384China

In machine learning,randomness is a crucial factor in the success of ensemble learning,and it can be injected into tree-based ensembles by rotating the feature ***,it is a common practice to rotate the feature space ***,a large number of trees are required to ensure the performance of the ensemble *** random rotation method is theoretically feasible,but it requires massive computing resources,potentially restricting its applications.A multimodal genetic algorithm based rotation forest(MGARF)algorithm is proposed in this paper to solve this *** is a tree-based ensemble learning algorithm for classification,taking advantage of the characteristic of trees to inject randomness by feature ***,this algorithm attempts to select a subset of more diverse and accurate base learners using the multimodal optimization *** classification accuracy of the proposed MGARF algorithm was evaluated by comparing it with the original random forest and random rotation ensemble methods on 23 UCI classification *** results show that the MGARF method outperforms the other methods,and the number of base learners in MGARF models is much fewer.

关键词： ensemble learning decision tree multimodal optimization genetic algorithm