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Boosting reversible charging of Li-ion batteries at low temperatures by a synergy of propylene carbonate-based electrolyte and defective graphite

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Nano Research 2024年第3期17卷 1491-1499页

作者： yingqiang Wu Jiao Zhang Jinli Liu Li Sheng Bo Zhang Limin Wang siqi Shi Li Wang Hong Xu Xiangming He Institute of Nuclear and New Energy Technology Tsinghua UniversityBeijing 100084China State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied ChemistryChinese Academy of Sciences(CAS)Changchun 130022China China National Quality Supervision and Inspection Center for Industrial Explosive Materials Nanjing University of Science and TechnologyNanjing 210094China School of Materials Science and Engineering Materials Genome InstituteShanghai UniversityShanghai 200444China

Propylene carbonate(PC)-based electrolytes have exhibited significant advantages in boosting the low-temperature discharging of graphite-based Li-ion ***,it is still unclear whether they can improve the charging property and suppress lithium *** this topic is challenging due to the problem of electrochemical *** overcome this issue,we introduced graphite with phase *** results show that the pouch-type full batteries using PC-based electrolyte exhibit steady performance over 500 cycles and can be reversibly charged over 30 times at-20℃ with an average Coulombic efficiency of 99.95%,while the corresponding value for the conventional ethylene carbonate(EC)-based electrolyte sample is only 31.20%.This indicates that the use of PC-based electrolyte significantly suppresses lithium plating during low-temperature *** further demonstrate that the improved performance is mainly attributed to the unique solvation structure,where PF-6more anions participate in solvation,leading to the formation of a stable F-rich solid state electrolyte interface on the graphite surface and a lower reduction tendency of Li+*** work inspires new ideas for the design of PC-based electrolytes for low-temperature charging and fast-charging batteries.

关键词： lithium-ion batteries graphite propylene carbonate low-temperature charging

Thermal safety boundary of lithium-ion battery at different state of charge

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Journal of Energy Chemistry 2024年第4期91卷 59-72页

作者： Hang Wu siqi Chen Yan Hong Chengshan Xu Yuejiu Zheng Changyong Jin Kaixin Chen Yafei He Xuning Feng Xuezhe Wei Haifeng Dai Clean Energy Automotive Engineering Center Tongji UniversityShanghai 201804China College of Mechanical Engineering University of Shanghai for Science and TechnologyShanghai 200093China State Key Laboratory of Automotive Safety and Energy Tsinghua UniversityBeijing 100084China

Thermal runaway(TR)is a critical issue hindering the large-scale application of lithium-ion batteries(LIBs).Understanding the thermal safety behavior of LIBs at the cell and module level under different state of charges(SOCs)has significant implications for reinforcing the thermal safety design of the lithium-ion battery *** study first investigates the thermal safety boundary(TSB)correspondence at the cells and modules level under the guidance of a newly proposed concept,safe electric quantity boundary(SEQB).A reasonable thermal runaway propagation(TRP)judgment indicator,peak heat transfer power(PHTP),is proposed to predict whether TRP ***,a validated 3D model is used to quantitatively clarify the TSB at different SOCs from the perspective of PHTP,TR trigger temperature,SOC,and the full cycle ***,three different TRP transfer modes are *** interconversion relationship of three different TRP modes is investigated from the perspective of *** paper explores the TSB of LIBs under different SOCs at both cell and module levels for the first time,which has great significance in guiding the thermal safety design of battery systems.

关键词： Lithium-ion battery Battery safety Thermal runaway State of charge Numerical analysis

LncRNAs are involved in regulating ageing and age-related disease through the adenosine monophosphate-activated protein kinase signalling pathway

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Genes & Diseases 2024年第5期11卷 183-197页

作者： Jiamei Li Feng Xiao siqi Wang Xiaolan Fan Zhi He Taiming Yan Jia Zhang Mingyao Yang Deying Yang College of Animal Science and Technology Sichuan Agricultural UniversityChengduSichuan 611130China Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province Sichuan Agricultural UniversityChengduSichuan 611130China Chengdu Women’s and Children’s Central Hospital School of MedicineUniversity of Electronic Science and Technology of ChinaChengduSichuan 610017China

A long noncoding RNA(lncRNA)is longer than 200 *** regulates various biological processes mainly by interacting with DNA,RNA,or protein in multiple kinds of biological *** monophosphate-activated protein kinase(AMPK)is activated during nutrient starvation,especially glucose starvation and oxygen deficiency(hypoxia),and exposure to toxins that inhibit mitochondrial respiratory chain complex *** is an energy switch in organisms that controls cell growth and multiple cellular processes,including lipid and glucose metabolism,thereby maintaining intracellular energy homeostasis by activating catabolism and inhibiting *** AMPK signalling pathway consists of AMPK and its upstream and downstream *** upstream targets include proteins such as the transforming growth factor b-activated kinase 1(TAK1),liver kinase B1(LKB1),and calcium/calmodulindependent protein kinase b(CaMKKb),and its downstream targets include proteins such as the mechanistic/mammalian target of rapamycin(mTOR)complex 1(mTORC1),hepatocyte nuclear factor 4a(HNF4a),and silencing information regulatory 1(SIRT1).In general,proteins function relatively independently and *** this article,a review of the currently known lncRNAs involved in the AMPK signalling pathway is presented and insights into the regulatory mechanisms involved in human ageing and age-related diseases are provided.

关键词： Age-related diseases Ageing AMPK signalling pathway Long noncoding RNA microRNA

Modern pollen-vegetation relationships along altitudinal vegetation belts in the Leigong Mountain of southwestern China

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Journal of Mountain Science 2024年第7期21卷 2249-2262页

作者： LI Shuming ZHAO Wenwei WEI Lisi REN Weihe GU Qinran WU siqi JI Yang YANG Ziteng ZHUANG Rui CHEN Chunzhu College of Geography and Tourism Hengyang Normal UniversityHengyang 421002China School of Geographical Science Nantong UniversityNantong 226019China State Key Laboratory of Modern Palaeobiology and Stratigraphy Nanjing Institute of Geology and PalaeontologyChinese Academy of Sciences Nanjing 210008China 4 University of Chinese Academy of SciencesBeijing 100049China

Understanding the distribution,dispersal,and correlation of modern pollen with vegetation in mountainous regions is essential for establishing accurate modern analogs for fossil pollen *** study,conducted in Leigong Mountain on the YunnanGuizhou Plateau of southwestern China,involved the collection of 35 surface soil samples from diverse vegetation communities along an elevational gradient ranging from 1210 to 1875 *** results reveal a close correspondence between modern pollen assemblages and vegetation *** Component Analysis(PCA)results indicate that pollen assemblages can effectively distinguish between subtropical montane evergreen broad-leaved forest(SEBF)and subtropical montane deciduous broadleaved forest(SDBF).However,both SEBF and SDBF show significant overlap with subtropical montane evergreen-deciduous broad-leaved mixed forest(SEMF).Detrended Correspondence Analysis(DCA)results clearly distinguish the three vegetation zones,and the first axis of DCA shows a significant positive correlation with elevation(p<0.01,R=0.48).Discriminant Analysis(DA)successfully assigns 94.4%of the modern pollen samples to their respective vegetation *** taxa such as Impatiens,Astertype,and Rosaceae exhibit significant indicative capabilities for the SEBF zone,effectively distinguishing this vegetation zone from *** and Alnus display overrepresentation in the Leigong Mountain region,while Quercus(D,deciduous-type)and Poaceae exhibit high representation in the SEBF *** the SEBF zone,both pollen diversity and richness are the *** study reveals the complex relationship between the richness and diversity of pollen and *** diversity and richness of tree and shrub pollen are found to be lower than those of the corresponding *** pollen-vegetation relationship elucidated in this study serves as a critical reference for reconstructing ancient environments from fossil pollen retrieved in this region.

关键词： Modern pollen assemblages Pollenvegetation relationship Pollen diversity and richness Leigong Mountain Southwestern China

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基于认知属性库的原型范畴研究

中文信息学报 2016年第6期30卷 90-99页

作者：李斌宋丽银思琪曲维光王萌南京师范大学文学院江苏南京210097 南京师范大学计算机科学与技术学院江苏南京210023 江南大学人文学院江苏无锡214122

原型范畴是认知科学研究中的重要理论,使用属性来区分范畴中心成员及边缘成员有着较强的解释力,但该理论一直缺乏基于频率信息的属性数据支撑。该文借助认知属性库的23万条数据,对原型理论研究中经常讨论的"鸟"、"水果"、"交通工具"等... 详细信息

原型范畴是认知科学研究中的重要理论,使用属性来区分范畴中心成员及边缘成员有着较强的解释力,但该理论一直缺乏基于频率信息的属性数据支撑。该文借助认知属性库的23万条数据,对原型理论研究中经常讨论的"鸟"、"水果"、"交通工具"等范畴的典型成员和非典型成员进行分析验证。认知属性库的数据显示,在汉语中,"鸟"的典型成员是"麻雀"、"燕子"等,和"鸟"具有较多的共同属性;而"企鹅"、"鸵鸟"则只共享了"鸟"很少的属性,且缺少关键的属性"飞"。大体上验证了原型理论的观点。同时,我们也发现"小鸟"的属性特别丰富,具有典型成员的特性。在进一步观察了"水果"和"交通工具"两个范畴后,我们探讨了范畴的跨类现象,进而从数学模型上区分了树结构的层次分类体系和图结构的范畴化体系。

关键词：认知属性原型范畴语义分类语义计算

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Spice It Up

The World of Chinese 2024年第3期 110-115页

作者： Tan Yunfei Wang siqi 不详

Known for its spicy, stir-fried dishes, Hunan cuisine has enjoyed a surge in popularity in recent years. But not everyone is happy about *** 9 p.m. on April 1, half an hour before her train arrived in Beijing, food blogger “Zhengqi Kong” opened a food delivery app and ordered several dishes from Hunan restaurant Xiaoxiangge so that they would be waiting for her at her accommodation. Despite the late, spicy, and oily dinner going against everything she knows about maintaining a healthy diet, eating Hunan food when traveling in and out of Beijing, as well as frequenting the capital’s Hunan restaurants, has become something of a ritual for the 28-year-old over the last several years.

关键词： restaurant something everyone

A novel copper metabolism-related signature model for predicting the prognosis,target drugs,and immunotherapy in stomach adenocarcinoma

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Genes & Diseases 2024年第5期11卷 21-24页

作者： Kai Zhuang siqi Tang Haixin Feng Jinying Zhang ying Liu Yong Liu Yongjian Su Jiaqi Yu Zunnan Huang Key Laboratory of Computer-Aided Drug Design of Dongguan City The First Dongguan Affiliated HospitalGuangdong Medical UniversityDongguanGuangdong 523710China Key Laboratory of Big Data Mining and Precision Drug Design of Guangdong Medical University Key Laboratory for Research and Development of Natural Drugs of Guangdong ProvinceSchool of PharmacyGuangdong Medical UniversityDongguanGuangdong 523808China School of Public Health Guangdong Medical UniversityDongguanGuangdong 523808China Marine Biomedical Research Institute of Guangdong Zhanjiang ZhanjiangGuangdong 524203China

Stomach adenocarcinoma(STAD)is one of the most common gastric neoplasms with a high death ***,there is an urgent need to propose an efficient therapy for *** plays key roles in regulating the distribution of immune cells and affecting the tumor immune escape,and may be a novel indicator of immunotherapy in ***,the specific impact of copper metabolism-related genes(CMRGs)on the patient’s prognosis,tumor microenvironment,and immunotherapeutic response remains unelucidated.

关键词： metabolism stomach adenocarcinoma

城市中心区停车泊位对既有住区工作日夜间共享能力评价——以天津市和平区为例

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地域研究与开发 2021年第5期40卷 77-81页

作者：杨申茂殷思琪李倩张萍天津美术学院环境与建筑艺术学院天津300011 河北工业大学建筑与艺术设计学院天津300131

针对城市中心区既有住区停车泊位资源紧缺的问题,以天津市和平区居住、商业、办公及医院用地停车泊位为样本,基于城市中心区既有住区工作日夜间停车需求与周边其他用地类型停车资源的时空供需匹配及居民对不同类型停车资源步行距离容忍... 详细信息

针对城市中心区既有住区停车泊位资源紧缺的问题,以天津市和平区居住、商业、办公及医院用地停车泊位为样本,基于城市中心区既有住区工作日夜间停车需求与周边其他用地类型停车资源的时空供需匹配及居民对不同类型停车资源步行距离容忍度差异,改进步行指数方法,构建停车资源共享能力评价模型,定量分析停车泊位的共享能力。结果表明:天津市和平区停车共享性分布不均匀,不同用地类型停车泊位共享能力与共享泊位数量和其服务的居民户数相关性高,与路网密度相关性较低。

关键词：修正的步行指数时空匹配停车共享能力城市中心区既有住区工作日夜间天津市和平区

Inhibition of protein degradation increases the Bt protein concentration in Bt cotton

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Journal of Integrative Agriculture 2024年第6期23卷 1897-1909页

作者： Yuting Liu Hanjia Li Yuan Chen Tambel Leila.I.M Zhenyu Liu Shujuan Wu siqi Sun Xiang Zhang Dehua Chen Jiangsu Key Laboratory of Crop Genetics and Physiology/Co-Innovation Center for Modern Production Technology of Grain Crops Yangzhou UniversityYangzhou 225009China Agricultural Research Cooperation Biotechnology and Biosafety Research CenterKhartoum 13314Sudan

Bacillus thuringiensis(Bt)cotton production is challenged by two main problems,i.e.,the low concentration of Bt protein at the boll setting stage and the lowest insect resistance in bolls among all the cotton plant’s ***,increasing the Bt protein concentration at the boll stage,especially in bolls,has become the main goal for increasing insect resistance in *** this study,two protein degradation inhibitors(ethylene diamine tetra acetic acid(EDTA)and leupeptin)were sprayed on the bolls,subtending leaves,and whole cotton plants at the peak flowering stage of two Bt cultivars(medium maturation Sikang 1(SK1))and early maturation Zhongmian 425(ZM425)in 2019 and *** Bt protein content and protein degradation metabolism were *** results showed that the Bt protein concentrations were enhanced by 21.3 to 38.8%and 25.0 to 38.6%in the treated bolls of SK1 and ZM425 respectively,while they were decreased in the subtending leaves of these treated *** the treated leaves,the Bt protein concentrations increased by 7.6 to 23.5%and 11.2 to 14.9%in SK1 and ZM425,*** combined application of EDTA and leupeptin to the whole cotton plant increased the Bt protein concentrations in both bolls and subtending *** Bt protein concentrations in bolls were higher,increasing by 22.5 to 31.0%and 19.6 to 32.5%for SK1 and ZM425,*** organs treated with EDTA or/and leupeptin showed reduced free amino acid contents,protease and peptidase activities and significant enhancements in soluble protein *** results indicated that inhibiting protein degradation could improve the protein content,thus increasing the Bt protein concentrations in the bolls or/and leaves of cotton ***,the increase in the Bt protein concentration without yield reduction suggested that these two protein degradation inhibitors may be applicable for improving insect resistance in cotton production.

关键词： Bt cotton Bt protein inhibition of protein degradation protein degradation metabolism