检索结果-南通市图书馆

Dietary nutrition, intestinal microbiota dysbiosis and post-weaning diarrhea in piglets

Animal Nutrition 2024年第2期17卷 188-207页

作者： xuebing han Xiangdong Hu Wei Jin Gang Liu Department of Urology Shengjing Hospital of China Medical University College of Bioscience and Biotechnology Hunan Agricultural University Hunan Provincial Engineering Research Center of Applied Microbial Resources Development for Livestock and Poultry State Key Laboratory of Subtropical Silviculture Zhejiang A&F University

Weaning is a critical transitional point in the life cycle of piglets. Early weaning can lead to post-weaning syndrome, destroy the intestinal barrier function and microbiota homeostasis, cause diarrhea and threaten the health of piglets. The nutritional components of milk and solid foods consumed by newborn animals can affect the diversity and structure of their intestinal microbiota, and regulate post-weaning diarrhea in piglets. Therefore, this paper reviews the effects and mechanisms of different nutrients,including protein, dietary fiber, dietary fatty acids and dietary electrolyte balance, on diarrhea and health of piglets by regulating intestinal function. Protein is an essential nutrient for the growth of piglets;however, excessive intake will cause many harmful effects, such as allergic reactions, intestinal barrier dysfunction and pathogenic growth, eventually aggravating piglet diarrhea. Dietary fiber is a nutrient that alleviates post-weaning diarrhea in piglets, which is related to its promotion of intestinal epithelial integrity, microbial homeostasis and the production of short-chain fatty acids. In addition, dietary fatty acids and dietary electrolyte balance can also facilitate the growth, function and health of piglets by regulating intestinal epithelial function, immune system and microbiota. Thus, a targeted control of dietary components to promote the establishment of a healthy bacterial community is a significant method for preventing nutritional diarrhea in weaned piglets.

关键词： Diarrhea Intestinal barrier Dietary protein Dietary fiber Dietary fatty acid Dietary electrolyte balance

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Flexible bidirectional pulse charging regulation achieving long-life lithium-ion batteries

引用

Journal of Energy Chemistry 2024年第9期96卷 59-71页

作者： Xiaodong Xu Shengjin Tang xuebing han Languang Lu Yudi Qin Jiuyu Du Yu Wu Yalun Li Chuanqiang Yu Xiaoyan Sun Xuning Feng Minggao Ouyang Rocket Force University of Engineering Xi’an 710025ShaanxiChina State Key Laboratory of Intelligent Green Vehicle and Mobility School of Vehicle and MobilityTsinghua UniversityBeijing 100084China School of Materials Science and Engineering Beijing Institute of TechnologyBeijing 100081China

Typical application scenarios,such as vehicle to grid(V2G)and frequency regulation,have imposed significant long-life demands on lithium-ion ***,we propose an advanced battery life-extension method employing bidirectional pulse charging(BPC)*** traditional constant current charging methods,BPC strategy not only achieves comparable charging speeds but also facilitates V2G frequency regulation *** significantly enhances battery cycle ampere-hour throughput and demonstrates remarkable life extension *** this interesting conclusion,adopting model identification and postmortem characterization to reveal the life regulation mechanism of BPC:it mitigates battery capacity loss attributed to loss of lithium-ion inventory(LLI)in graphite anodes by intermittently regulating the overall battery voltage and anode potential using a negative charging ***,from the perspective of internal side reaction,the life extension mechanism is further revealed as inhibition of solid electrolyte interphase(SEI)and lithium dendrite growth by regulating voltage with a bidirectional pulse current,and a semi-empirical life degradation model combining SEI and lithium dendrite growth is developed for BPC scenarios health management,the model parameters are identified by genetic algorithm with the life simulation exhibiting an accuracy exceeding 99%.This finding indicates that under typical rate conditions,adaptable BPC strategies can extend the service life of LFP battery by approximately 123%.Consequently,the developed advanced BPC strategy offers innovative perspectives and insights for the development of long-life battery applications in the future.

关键词： Lithium-ion battery Long-life regulation Bidirectional pulse charging Mechanism identification

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Effect of preload forces on multidimensional signal dynamic behaviours for battery early safety warning

引用

Journal of Energy Chemistry 2024年第5期92卷 484-498页

作者： Kuijie Li Jiahua Li Xinlei Gao Yao Lu Depeng Wang Weixin Zhang Weixiong Wu xuebing han Yuan-cheng Cao Languang Lu Jinyu Wen Shijie Cheng Minggao Ouyang School of Electrical and Electronic Engineering Huazhong University of Science and TechnologyWuhan 430074HubeiChina State Key Laboratory of Automotive Safety and Energy Tsinghua UniversityBeijing 100084China Energy and Electricity Research Center Jinan UniversityZhuhai 519070GuangdongChina Department of Mechanical Engineering Imperial College LondonLondon.SW7:2AZ.UK

Providing early safety warning for batteries in real-world applications is *** this study,comprehensive thermal abuse experiments are conducted to clarify the multidimensional signal evolution of battery failure under various preload *** time-sequence relationship among expansion force,voltage,and temperature during thermal abuse under five categorised stages is *** characteristic peaks are identified for the expansion force,which correspond to venting,internal short-circuiting,and thermal *** particular,an abnormal expansion force signal can be detected at temperatures as low as 42.4°C,followed by battery thermal runaway in approximately 6.5 ***,reducing the preload force can improve the effectiveness of the early-warning method via the expansion ***,reducing the preload force from 6000 to 1000 N prolongs the warning time(i.e.,227 to 398 s)before thermal runaway is *** on the results,a notable expansion force early-warning method is proposed that can successfully enable early safety warning approximately 375 s ahead of battery thermal runaway and effectively prevent failure propagation with module *** study provides a practical reference for the development of timely and accurate early-warning strategies as well as guidance for the design of safer battery systems.

关键词： Lithium-ion battery Thermal runaway Preload force Expansionforce Early warning Multidimensional signal

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

基于参比电极的析锂电池安全充电控制

引用

电力工程技术 2024年第3期43卷 71-77页

作者：钱广俊汪宇卢兰光韩雪冰清华大学(汽车安全与节能国家重点实验室) 北京100084

电池系统是支撑下一代新型电网的关键,然而不合理的充放电策略会使电池发生析锂副反应,导致电池充放电性能大幅减弱。因此,文中针对三元锂离子电池,基于参比电极揭示了析锂后电池的充电性能变化情况,并对其安全充电电流进行控制。首先,... 详细信息

电池系统是支撑下一代新型电网的关键,然而不合理的充放电策略会使电池发生析锂副反应,导致电池充放电性能大幅减弱。因此,文中针对三元锂离子电池,基于参比电极揭示了析锂后电池的充电性能变化情况,并对其安全充电电流进行控制。首先,设计不同温度下的充放电循环实验,得到低温循环与高温循环后的电池;其次,通过植入参比电极标定安全充电曲线对比电池的负极电位,发现高温循环后的电池发生了析锂,且平均充电电流相比新电池降低了61.7%;最后,对析锂后的电池建立安全充电荷电状态-温度-电流等高线图,对比新电池等高线图后发现,200 A以上的充电电流区域减少了69.84%。文中提供了一个析锂后电池充电性能衰减的量化指标,需要在实际的锂离子电池全寿命周期管理中予以考虑。

关键词：析锂电池参比电极负极电位充电标定充电性能等高线图

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

乙肝肝硬化患者配偶健康商数水平影响因素分析及护理干预策略

引用

临床医学研究与实践 2024年第8期9卷 19-22页

作者：韩雪冰于慧郑州大学第一附属医院感染性疾病科河南郑州450000

目的分析乙肝肝硬化患者配偶健康商数水平的影响因素,以此为依据进一步实施护理干预策略。方法选取2019年10月至2021年10月132名乙肝肝硬化患者配偶作为研究对象。调查工具包括一般资料调查问卷、健康商数调查问卷、肝硬化知识问卷、汉... 详细信息

目的分析乙肝肝硬化患者配偶健康商数水平的影响因素,以此为依据进一步实施护理干预策略。方法选取2019年10月至2021年10月132名乙肝肝硬化患者配偶作为研究对象。调查工具包括一般资料调查问卷、健康商数调查问卷、肝硬化知识问卷、汉密尔顿抑郁量表(HAMD)以及特质应对方式问卷(TCSQ)。采用多元线性回归分析乙肝肝硬化患者配偶健康商数水平影响因素。结果最终获得有效问卷128份,问卷有效回收率为96.97%。乙肝肝硬化患者配偶的健康商数总分为(26.35±3.56)分,各维度得分由低到高分别为健康知识、生活技能、自我保健、精神状态、生活方式。多元线性回归结果显示,学历、与家庭成员关系和睦、积极应对是乙肝肝硬化患者配偶健康商数水平的保护因素,未掌握肝硬化知识、抑郁是危险因素(P<0.05)。结论乙肝肝硬化患者配偶的健康商数处于中等水平,仍待进一步提升,学历、与家庭成员关系和睦、积极应对是其保护因素,未掌握肝硬化知识、抑郁是其危险因素,临床可根据上述因素给予针对性的干预措施,以提高其健康商数水平。

关键词：乙肝肝硬化健康商数配偶影响因素

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Specialized deep neural networks for battery health prognostics:Opportunities and challenges

引用

Journal of Energy Chemistry 2023年第12期87卷 416-438,I0011页

作者： Jingyuan Zhao xuebing han Minggao Ouyang Andrew F.Burke Institute of Transportation Studies University of CaliforniaDavisCA 95616USA State Key Laboratory of Automotive Safety and Energy Tsinghua UniversityBeijing 100084China

Lithium-ion batteries are key drivers of the renewable energy revolution,bolstered by progress in battery design,modelling,and ***,achieving high-performance battery health prognostics is a significant *** the availability of open data and software,coupled with automated simulations,deep learning has become an integral component of battery health *** offer a comprehensive overview of potential deep learning techniques specifically designed for modeling and forecasting the dynamics of multiphysics and multiscale battery *** this,we provide a concise summary of publicly available lithium-ion battery test and cycle *** providing illustrative examples,we emphasize the efficacy of five techniques capable of enhancing deep learning for accurate battery state prediction and health-focused *** of these techniques offers unique benefits.(1)Transformer models address challenges using self-attention mechanisms and positional encoding methods.(2) Transfer learning improves learning tasks within a target domain by leveraging knowledge from a source domain.(3) Physics-informed learning uses prior knowledge to enhance learning algorithms.(4)Generative adversarial networks(GANs) earn praise for their ability to generate diverse and high-quality outputs,exhibiting outstanding performance with complex datasets.(5) Deep reinforcement learning enables an agent to make optimal decisions through continuous interactions with its environment,thus maximizing cumulative *** this Review,we highlight examples that employ these techniques for battery health prognostics,summarizing both their challenges and *** methodologies offer promising prospects for researchers and industry professionals,enabling the creation of specialized network architectures that autonomously extract features,especially for long-range spatial-temporal connections across extended *** outcomes could include improved accura

关键词： Lithium-ion batteries State of health Lifetime Deep learning Transformer Transfer learning Physics-informed learning Generative adversarial networks Reinforcement learning Open data

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Role of dietary amino acids and microbial metabolites in the regulation of pig intestinal health

引用

Animal Nutrition 2022年第2期9卷 1-6页

作者： Yong Ma xuebing han Jun Fang Hongmei Jiang College of Bioscience and Biotechnology Hunan Agricultural UniversityHunan Provincial Engineering Research Center of Applied Microbial Resources Development for Livestock and PoultryChangsha410128China

With the rapid development of sequencing technology,research on pigs has focused on intestinal *** evidence suggests that the metabolites of intestinal microbes are the key medium for interactions between microbes and the *** acid metabolism is involved in the growth and immune processes of *** gut microbes of pigs are heavily involved in the metabolism of amino acids in their ***,we review the latest relevant *** findings show that microbial metabolites,such as indoles,short-chain fatty acids,and ammonia,play a key role in gut ***,we summarize the effects of amino acids on the structure of the gut microbial community and the metabolism of amino acids by pig gut *** shows that microbial amino acid metabolites act as signal molecules in the intestine and play an important role in the intestinal health of pigs.

关键词： Pig Amino acid Intestinal microbe Metabolite

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

钴酸锂电池低温特性和针刺安全性能研究

引用

上海理工大学学报 2024年第1期46卷 21-29页

作者：钱广俊郑岳久卢兰光孙跃东韩雪冰上海理工大学机械工程学院上海200093 清华大学车辆与运载学院北京100084

以低温下工作的钴酸锂(LCO)电池为研究对象,通过实验研究其在低温下的特性和热失控温度变化情况。首先,通过不同温度下的容量测试,对比了-30℃时三元锂离子电池与LCO电池的容量保持率,结果表明,LCO电池在-30℃低温放电容量保持率几乎达... 详细信息

以低温下工作的钴酸锂(LCO)电池为研究对象,通过实验研究其在低温下的特性和热失控温度变化情况。首先,通过不同温度下的容量测试,对比了-30℃时三元锂离子电池与LCO电池的容量保持率,结果表明,LCO电池在-30℃低温放电容量保持率几乎达到三元锂离子电池的2倍;其次,利用混合功率脉冲特性测试得到了不同温度下电池的内阻;接着,对低温下LCO电池电化学阻抗进行测试,结果表明,-10,-20,-30℃时的电荷转移阻抗较0℃时分别增加了180%,702%,2 400%;最后,对LCO进行针刺热失控实验,结果表明,钢针刺破电池背面后,电池表面最高温度不超过530℃,伴有少量火星,很快产生大量烟雾,并没有发生着火的现象。

关键词：钴酸锂电池容量保持率电荷转移阻抗针刺实验

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Regulation of dietary fiber on intestinal microorganisms and its effects on animal health

引用

Animal Nutrition 2023年第3期14卷 356-369页

作者： xuebing han Yong Ma Sujuan Ding Jun Fang Gang Liu College of Bioscience and Biotechnology Hunan Agricultural UniversityHunan Provincial Engineering Research Center of Applied Microbial Resources Development for Livestock and PoultryChangshaHunan 410125China

The animal gut harbors diverse microbes that play an essential role in the well-being of their *** diets,such as those rich in dietary fiber,are vital in disease prevention and treatment because they affect intestinal flora and have a positive impact on the metabolism,immunity,and intestinal function of the *** fiber can provide energy to colonic epithelial cells,regulate the structure and metabolism of intestinal flora,promote the production of intestinal mucosa,stimulate intestinal motility,improve glycemic and lipid responses,and regulate the digestion and absorption of nutrients,which is mainly attributed to short-chain fatty acids(SCFA),which is the metabolite of dietary *** binding with G protein-coupled receptors(including GPR41,GPR43 and GPR109A)and inhibiting the activity of histone deacetylases,SCFA regulate appetite and glucolipid metabolism,promote the function of the intestinal barrier,alleviate oxidative stress,suppress inflammation,and maintain immune system *** paper reviews the physicochemical properties of dietary fiber,the interaction between dietary fiber and intestinal microorganisms,the role of dietary fiber in maintaining intestinal health,and the function of SCFA,the metabolite of dietary fiber,in inhibiting ***,we consider the effects of dietary fiber on the intestinal health of pigs,the reproduction and lactation performance of sows,and the growth performance and meat quality of pigs.

关键词： Dietary fiber Short-chain fatty acid Intestinal microorganism Inflammation Pig Lactation performance

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

基于产线大数据的锂离子电池一致性动态特性分选方法

引用

储能科学与技术 2024年第4期13卷 1188-1196页

作者：李革孔祥栋孙跃东陈飞袁悦博韩雪冰郑岳久上海理工大学机械学院上海200093 四川赛鸥科技有限公司四川宜宾644000 清华大学车辆与运载学院智能绿色车辆与交通全国重点实验室北京100084

随着锂离子电池生产规模的迅速扩大,电池制造商急需高精度高效率的电池分选方法,增强电池成组后的一致性,从而提升电池组寿命、安全性和能量密度。基于容量和内阻等特性的传统分选技术可以满足成组后的静态一致性需求,但无法保证同组电... 详细信息

随着锂离子电池生产规模的迅速扩大,电池制造商急需高精度高效率的电池分选方法,增强电池成组后的一致性,从而提升电池组寿命、安全性和能量密度。基于容量和内阻等特性的传统分选技术可以满足成组后的静态一致性需求,但无法保证同组电池的动态一致性。因此,综合考虑电池在整个充放电过程中的性能,基于充放电电压曲线动态特性的分组方法是下一代分选技术的发展方向。本文基于电池产线大数据,从电池分容阶段的电压曲线提取关键动态特征,形成了基于K-means聚类的电池分选方法。此外,本文还从电池分容后的回充阶段提取了用于评估电池性能一致性的指标,并设计了一个以指标标准差为核心的电池一致性评价方法。与传统的电池分选方法相比较,本文方法分选后的电池综合性能一致性提高了15.65%。

关键词：锂离子电池电池一致性电池分选聚类算法

来源：

维普期刊数据库

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

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：