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Experimental study of dual nano-network, high-temperature resistant aerogel material as an integration of thermal management functions

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Journal of Energy Chemistry 2025年第1期 157-170页

作者： Yueyue Xiao Tianke Mao Zun Zhao Yuelei Pan heping zhang Xudong Cheng State Key Laboratory of Fire Science University of Science and Technology of China

Thermal management system is highly desirable to guarantee the performance and thermal safety of lithium-ion batteries,but it reduces the energy density of battery modules and even is unable to provide highly effective ***,a thermal management function integrated material is presented based on high-temperature resistant aerogel and phase change material and is applied at both charge–discharge process and thermal runaway *** this sandwich structure Paraffin@SiC nanowire/Aerogel sheet （denoted as PA@SAS） system,SiC nanowires endow the middle aerogel sheet （SAS） a dual nano-network *** enhanced mechanical properties of SAS were studied by compressive tests and dynamic mechanical ***,the thermal conductivity of SAS at 600°C is only 0.042 W/（m K）.The surface phase change material layers facilitate temperature uniformity of batteries （surface temperature difference less than 1.82°C） through latent ***,a large-format battery module with four 58 Ah LiNi0.5Co0.2Mn0.3O2LIBs was ***@SAS successfully prevents thermal runaway propagation,yielding a temperature gap of 602°C through the 2 mm-thick cross ***@SAS also exhibits excellent performance in other safety issues such as temperature rise rate,flame heat flux,*** lightweight property and effective insulation performance achieves significant safety enhancement with mass and volume energy density reduction of only 0.79%and 5.4%,*** originality of the present research stems from the micro and macro structure design of the proposed thermal management material and the combination of intrinsic advantages of every *** work provides a reliable design of achieving the integration of thermal management functions into an aerogel composite and improves the thermal safety of lithium-ion batteries.

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Bondage number of strong product of two paths

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Frontiers of Mathematics in China 2015年第2期10卷 435-460页

作者： Weisheng ZHAO heping zhang School of Mathematics and Statistics Lanzhou University Lanzhou 730000 China

The bondage number b（G） of a graph G is the cardinality of a minimum set of edges whose removal from G results in a graph with a domination number greater than that of G. In this paper, we obtain the exact value of the bondage number of the strong product of two paths. That is, for any two positive integers ra ≥ 2 and n ≥ 2, b（Pm × Pn） = 7 - r（m） - r（n） if （r（m）,r（n）） = （1, 1） or （3,3）, 6 - r（m） - r（n） otherwise, where r（t） is a function of positive integer t, defined as r（t） = 1 if t ≡ 1 （mod 3）, r（t） = 2 if t ≡2 （mod 3）, and r（t） = 3 if t ≡0 （mod 3）.

关键词： Bondage number strong product path

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Anti-forcing spectrum of any cata-condensed hexagonal system is continuous

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Frontiers of Mathematics in China 2017年第2期12卷 325-337页

作者： Kai DENG heping zhang School of Mathematics and Statistics Lanzhou University Lanzhou 730000 China School of Mathematics and Information Science Beifang University of Nationalities Yinchuan 750027 China

The anti-forcing number of a perfect matching M of a graph G is the minimal number of edges not in M whose removal makes M a unique perfect matching of the resulting graph. The anti-forcing spectrum of G is the set of anti-forcing numbers over all perfect matchings of G. In this paper, we prove that the anti-forcing spectrum of any cata-condensed hexagonal system is continuous, that is, it is a finite set of consecutive integers.

关键词： Perfect matching anti-forcing number anti-forcing spectrum,hexagonal system

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Super s-restricted edge-connectivity of vertex-transitive graphs

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Science China Mathematics 2014年第9期57卷 1883-1890页

作者： SUN WuYang zhang heping School of Mathematics and Statistics Lanzhou University

Let G be a connected graph with vertex-set V(G)and edge-set E(G).A subset F of E(G)is an s-restricted edge-cut of G if G-F is disconnected and every component of G-F has at least s ***λs(G)be the minimum size of all s-restricted edge-cuts of G andξs(G)=min{|[X,V(G)\X]|:|X|=s,G[X]is connected},where[X,V(G)\X]is the set of edges with exactly one end in X.A graph G with an s-restricted edge-cut is called super s-restricted edge-connected,in short super-λs,ifλs(G)=ξs(G)and every minimum s-restricted edge-cut of G isolates one component G[X]with|X|=*** is proved in this paper that a connected vertex-transitive graph G with degree k>5 and girth g>5 is super-λs for any positive integer s with s 2g or s 10 if k=g=6.

关键词： vertex-transitive graph restricted edge-connectivity s-restricted edge-connectivity super-λs graph

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ZmWRKY104 positively regulates salt tolerance by modulating ZmSOD4 expression in maize

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The Crop Journal 2022年第2期10卷 555-564页

作者： Jingwei Yan Jing Li heping zhang Ya Liu Aying zhang College of Life Sciences Nanjing Agricultural UniversityNanjing 210095JiangsuChina State Key Laboratory of Crop Genetics and Germplasm Enhancement Nanjing Agricultural UniversityNanjing 210095JiangsuChina

Salinity impairs plant growth, limiting agricultural development. It is desirable to identify genes responding to salt stress and their mechanism of action. We identified a function of the Zea mays WRKY transcription factor, Zm WRKY104, in salt stress response. Zm WRKY104 was localized in the nucleus and showed transcriptional activation activity. Phenotypic and physiological analysis showed that overexpression of Zm WRKY104 in maize increased the tolerance of maize to salt stress and alleviated salt-induced increases in O;accumulation, malondialdehyde(MDA) content, and percent of electrolyte leakage. Further investigation showed that Zm WRKY104 increased SOD activity by regulating Zm SOD4 expression. Yeast onehybrid, electrophoretic mobility shift test, and chromatin immunoprecipitation–quantitative PCR assay showed that Zm WRKY104 bound directly to the promoter of Zm SOD4 by recognizing the W-box motif in vivo and in vitro. Phenotypic, physiological, and biochemical analysis showed that Zm SOD4 increased salt tolerance by alleviating salt-induced increases in O;accumulation, MDA content, and percent of electrolyte leakage under salt stress. Taken together, our results indicate that Zm WRKY104 positively regulates Zm SOD4 expression to modulate salt-induced O;accumulation, MDA content, and percent of electrolyte leakage, thus affecting salt stress response in maize.

关键词： Zea mays ZmWRKY104 ZmSOD4 Salt tolerance

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A cellular automata evacuation model considering friction and repulsion

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Science China(Technological Sciences) 2005年第4期48卷 403-413页

作者： SONG Weiguo YU Yanfei FAN Weicheng zhang heping State Key Laboratory of Fire Science University of Science and Technology of China Hefei 230027 China State Key Laboratory of Fire Science University of Science and Technology of China Hefei 230027 China State Key Laboratory of Fire Science University of Science and Technology of China Hefei 230027 China State Key Laboratory of Fire Science University of Science and Technology of China Hefei 230027 China

There exist interactions among pedestrians and between pedestrian and environment in evacuation. These interactions include attraction, repulsion and friction that play key roles in human evacuation behaviors, speed and efficiency. Most former evacuation models focus on the attraction force, while repulsion and friction are not well modeled. As a kind of multi-particle self-driven model, the social force model introduced in recent years can represent those three forces but with low simulation efficiency because it is a continuous model with complex rules. Discrete models such as the cellular automata model and the lattice gas model have simple rules and high simulation efficiency, but are not quite suitable for interactions’ simulation. In this paper, a new cellular automata model based on traditional models is introduced in which repulsion and friction are modeled quantitatively. It is indicated that the model can simulate some basic behaviors, e.g. arching and the “faster-is-slower” phenomenon, in evacuation as multi-particle self-driven models, but with high efficiency as the normal cellular automata model and the lattice gas model.

关键词： evacuation, cellular automata, multi-particle self-driven model, lattice gas.

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Asian gut microbiome

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Science Bulletin 2017年第12期62卷 816-817页

作者： Jiro Nakayama heping zhang Yuan-Kun Lee Department of Bioscience and Biotechnology Faculty of AgricultureKyushu University Key Laboratory of Dairy Biotechnology and Engineering Education Ministry of P.R.ChinaDepartment of Food Science and EngineeringInner Mongolia Agricultural University Department of Microbiology & Immunology National University of Singapore

Several hundred microbial species inhabit the human gastrointestinal(GI)tract and constitute a complex ecological community that influences the host’s physiology and immunity through their metabolism and interactions with the host[1,2].The composition of the GI microbiota varies among *** intrinsic and extrinsic factors,including host genetics and physiology,drug and disease,and diets and some other living environments。

关键词：胃肠道微生物亚洲胃肠道菌群饮食习惯生物物种生态群落相互作用新陈代谢

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Lacticaseibacillus rhamnosus Probio-M9 may be vertically transmitted from mother to infant during lactation based on faeces metagenomics

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Food Science and Human Wellness 2024年第2期13卷 721-728页

作者： Lan Yang Lai-Yu Kwok Zhihong Sun heping zhang Key Laboratory of Dairy Biotechnology and Engineering Ministry of EducationInner Mongolia Agricultural UniversityHohhot 010018China Key Laboratory of Dairy Products Processing Ministry of Agriculture and Rural AffairsInner Mongolia Agricultural UniversityHohhot 010018China Inner Mongolia Key Laboratory of Dairy Biotechnology and Engineering Inner Mongolia Agricultural UniversityHohhot 010018China

Probiotics exert beneficial effects on the *** study aimed to investigate whether maternally ingested Lacticaseibacillus rhamnosus Probio-M9 during pregnancy could access and colonize the infant *** study recruited one pregnant woman,who ingested Probio-M9 daily from 35 weeks of gestation to *** of the mother-infant pair were regularly collected from one month before delivery to 6 months of infant's age for metagenomic ***-M9 genomes were mappable to all infant fecal samples,suggesting the ingested probiotics could be vertically transmitted from mother to ***-or mother-specific differential metabolic pathways were found between the maternal and infant's gut microbiome,implicating apparent differences in the intestinal metagenomic potential/function between the mother and the *** conclusion,maternal ingestion of Probio-M9 during the final weeks of gestation could deliver to the infant *** findings provided novel insights into shaping infant's gut microbiota.

关键词： Metagenomic analysis Lacticaseibacillus rhamnosus Gut microbiome Mother Infant

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Microbiota associated with type 2 diabetes and its related complications

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Food Science and Human Wellness 2013年第3期2卷 167-172页

作者： Yong zhang heping zhang Key Laboratory of Dairy Biotechnology and Engineering Ministry of EducationDepartment of Food Science and EngineeringInner Mongolia Agricultural UniversityHohhot 010018PR China

Recently,it has been established that the human resident microbiota plays key roles in health ***,it has become an emerging prevention and treatment target for metabolic *** resident microbiota associated with chronic inflammation has been shown to contribute to the onset of type 2 diabetes mellitus(T2DM).Moreover,the microbiota is altered in the development of T2DM and its comorbid medical conditions/diseases,including diabetic retinopathy,kidney toxicity,atherosclerosis,hypertension,diabetic foot ulcers,cycstic fibrosis and Alzheimer’s ***,some anti-T2DM regimens are also based microbiota metabolism-dependent *** review summarizes the current knowledge concerning the altered microbiota in the pathogenesis of T2DM and its related complications,which provides novel insights into these diseases and the potential intervention strategies from the microbiology point of view.©2013 Beijing Academy of Food *** and hosting by Elsevier *** rights reserved.

关键词： Microbiota Type 2 diabetes T2DM complications

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Experimental study on CO_2/CO of typical lining materials in full-scale fire test

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Chinese Science Bulletin 2007年第9期52卷 1282-1286页

作者： WANG Wei zhang heping WAN YuTian State Key Laboratory of Fire Science University of Science and Technology of China Hefei 230027 China

Lining materials are widely used in buildings to cover walls and ceilings. Combustible linings may produce a potential high fire hazard in buildings. Once ignited,it propagates fire and accelerates the enclosure fire growth. Two types of lining materials were studied during the tests:block board and plywood. The test was conducted in an ISO 9705 room,where linings were mounted on walls without the ceiling. By changing the heat output of the burner,the ventilation,etc.,the concentrations of CO2/CO of different lining materials were researched. The effect of test conditions on the production of CO2/CO of different lining materials was investigated,and useful experimental data were provided for the further development of numerical modeling to simulate enclosure fire growth lined with combusti-ble materials.

关键词：典型装饰材料足尺火灾试验 CO2 CO 有害气体实验研究

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