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Food Bioscience 2023年第2期52卷 262-270页

作者： Zicong Zeng yiheng wang Guorong Xu Lei Zhou Chengmei Liu Shunjing Luo School of Food Science and Engineering Jiangxi Agricultural UniversityNanchang330045JiangxiChina State Key Laboratory of Food Science and Technology Nanchang UniversityNanchang330047JiangxiChina

Dielectric barrier discharge cold plasma(DBD-CP)was applied to brown rice either in the form of whole brown rice or in brown rice powder in order to inactivate ***,the DBD-CP stabilized whole brown rice(CPR)and brown rice powder(CPP)were compared through their storage,physicochemical and bioactive *** demonstrated that peroxidase was completely inactivated in CPP rather than in CPR,and the fat acidity in CPP was significantly lower than that in CPR and raw brown rice during accelerated ***,the etching effect of DBD-CP induced many scorched spots and micropores respectively in the surface of CPR and CPP,which significantly increased their water absorption index and pasting ***,the starch and protein molecules were depolymerized in CPR,while they were cross-linked in ***,the effects of DBD-CP on gelatinization enthalpy,setback value and water solubility index differed in CPR and ***,CPR was better for the retainment of phenolic compounds and antioxidant activity than ***,DBD-CP was useful to improve the shelf life of brown rice,and its effects on the storage,physicochemical and bioactive properties were highly depended on the form of brown rice to be processed.

关键词： Brown rice Cold plasma Peroxidase inactivation Physicochemical properties

Revealing the contributions of sunlight-expose process and core-microbiota metabolism on improving the flavor profile during Doubanjiang fermentation

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FOOD BIOSCIENCE 2023年第3期53卷 754-764页

作者： Zhao, Shuai Niu, Chengtuo wang, yiheng Li, Xiaoyang Zheng, Feiyun Liu, Chunfeng wang, Jinjing Li, Qi Jiangnan Univ Sch Biotechnol Key Lab Ind Biotechnol Minist Educ Wuxi 214122 Peoples R China Jiangnan Univ Sch Biotechnol Lab Brewing Sci & Technol Wuxi 214122 Peoples R China Jiangnan Univ Sch Biotechnol Wuxi 214122 Peoples R China Jiangnan Univ Sch Biotechnol 1800 Lihu Ave Wuxi 214122 Jiangsu Peoples R China

This study aimed to elaborate the contributions of sunlight-expose process and core-microbiota metabolism on improving the Doubanjiang flavor profile. Four Doubanjiang fermentation models were designed with sunlight-expose and core-microbiota metabolism as independent variable. It was found that the synergism of sunlight-expose and core taxa metabolism was favorable to improve the diversity of volatile and non-volatile com-pounds during Doubanjiang fermentation, a total of 49 VOCs were screened to characterize this effect contributed by sunlight and core taxa. The contribution for core-microbiota metabolism to flavor profile reached 71.3%, which was much higher than that of sunlight-expose process (28.6%), Additionally, the proportion of Staphy-lococcus (31.9%) and Zygosaccharomyces (21.9%) is more prominent to flavor profile among 4 core microor-ganisms after RDA analysis, and the environment with light-expose was beneficial to promote the growth of A. oryzae, S. carnosus and Z. rouxii. The situ fermentation was conducted to further verify the role of sunlight-expose, Z. rouxii and S. carnosus in improving the Doubanjiang flavor profile. This study was conducive to reveal the scientific mechanism behind the traditional Doubanjiang fermentation, and provide the new insight to Doubanjiang brewing technology.

关键词： Fermentation Doubanjiang Sunlight-expose Core-microbiota Flavor profile

Antimicrobial metabolites produced by the plant growth-promoting rhizobacteria(PGPR):Bacillus and Pseudomonas

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Advanced Agrochem

Advanced Agrochem 2024年第3期3卷 206-221页

作者： yiheng wang Yongfu Pei Xin wang Xiongfeng Dai Manlu Zhu State Key laboratory of Green Pesticides School of Life SciencesCentral China Normal UniversityWuhan430079China

Plant growth-promoting rhizobacteria(PGPR)such as Bacillus and Pseudomonas have drawn broad attention and interest due to their agricultural *** of the major benefits of PGPR lies at their biocontrol capabilities against various plant *** biocontrol capability of PGPR is closely related to its capability of producing various kinds of antimicrobial *** antimicrobial secondary metabolites secreted by PGPR include non-ribosomal lipopeptides(NRLPs),polyketides,ribosomal peptides,phenazines,pyrrolnitrins,*** review focuses on the major antimicrobial secondary metabolites produced by Bacillus and Pseudomonas including their classifications,structures,mechanisms of action and genetic *** have also discussed their applications in plant biocontrol and provided insights into future development of improved biocontrol strains using synthetic biology approaches.

关键词： Antimicrobial substances Biocontrol Bacillus Pseudomonas Synthetic biology

FURTHER INVESTIGATION OF THE J_2-INTEGRAL IN BIMATERIAL SOLIDS

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Acta Mechanica Solida Sinica 2003年第2期16卷 179-188页

作者： wang Defa Chen yiheng Liu Caisheng (Department of Engineering Mechanics,Xi’an Jiaotong University,Xi’an 710049,China) DepartmentofEngineeringMechanics Xi‘anJiaotongUniversityXi’an710049China

The J_2-integral induced from the interface of bimaterial solids(J_2^(interface))is stud- ied by numerical ***,the effect on the J_2-integral induced from the interface is very significant in bimaterial solids,which is inherently related to that induced from the subinterface ***,it can be concluded that either the first or the second component of the J_k- vector is always equal to zero when the contour encloses both the cracks and the whole interface in bimaterial ***,it can also be concluded that the interface does produce significant effect on the J_2-integral induced from the subinterface cracks(J_2^(sub))in bimaterial *** effect depends on the geometry of the crack arrangement,which is corresponding to the different interaction effect among the cracks and the ***,the interface effect on the J_2^(sub) can be neglected when the distance from the crack center to the interface is large enough,which reveals that the bimaterial solids can be regarded as homogenous solids in fracture analysis when the subinterface crack is far enough from the *** examples are given in this paper.

关键词： bimaterial solids J_2-integral J_k-vector the interface integral contour subinterface cracks interaction effect

New genetic and epigenetic insights into the chemokine system: the latest discoveries aiding progression toward precision medicine

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Cellular & Molecular Immunology 2023年第7期20卷 739-776页

作者： Hanli Xu Shuye Lin Ziyun Zhou Duoduo Li Xiting Zhang Muhan Yu Ruoyi Zhao yiheng wang Junru Qian Xinyi Li Bohan Li Chuhan Wei Keqiang Chen Teizo Yoshimura Ji Ming wang Jiaqiang Huang College of Life Sciences and Bioengineering School of Physical Science and EngineeringBeijing Jiaotong University3 ShangyuanCunHaidian District100044 BeijingP.R.China Cancer Research Center Beijing Chest HospitalCapital Medical UniversityBeijing Tuberculosis and Thoracic Tumor Institute101149 BeijingChina Laboratory of Cancer Innovation Center for Cancer ResearchNational Cancer Institute at FrederickFrederickMD 21702USA.

Over the past thirty years,the importance of chemokines and their seven-transmembrane G protein-coupled receptors(GPCRs)has been increasingly *** interactions with receptors trigger signaling pathway activity to form a network fundamental to diverse immune processes,including host homeostasis and responses to *** and nongenetic regulation of both the expression and structure of chemokines and receptors conveys chemokine functional *** and defects in the system contribute to the pathogenesis of a variety of diseases,including cancer,immune and inflammatory diseases,and metabolic and neurological disorders,which render the system a focus of studies aiming to discover therapies and important *** integrated view of chemokine biology underpinning divergence and plasticity has provided insights into immune dysfunction in disease states,including,among others,coronavirus disease 2019(COVID-19).In this review,by reporting the latest advances in chemokine biology and results fromanalyses of a plethora of sequencing-based datasets,we outline recent advances in the understanding of the genetic variations and nongenetic heterogeneity of chemokines and receptors and provide an updated view of their contribution to the pathophysiological network,focusing on chemokine-mediated inflammation and *** of the molecular basis of dynamic chemokine-receptor interactions will help advance the understanding of chemokine biology to achieve precision medicine application in the clinic.

关键词： Chemokine Chemokine receptor Migration Homeostasis Genetics Epigenetics

Proliferation and differentiation of reactive nestin^+/GFAP^+ cells in an adult rat model of compression-induced spinal cord injury

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Neural Regeneration Research 2009年第10期4卷 725-731页

作者： Pinglin Yang Xijing He Haopeng Li Binshang Lan Guoyu wang yiheng Liu Second Department of Orthopedics Second Affiliated Hospital of Xi'an Jiaotong University Medical School Xi'an 710004 Shaanxi Province China

BACKGROUND： Studies have demonstrated that astrocytes may possess similar properties to neural stem cells/neural precursor cells and have the potential to differentiate into neurons. OBJECTIVE： To observe neuroepithelial stem cell protein （nestin） and glial fibrillary acidic protein （GFAP） expression following spinal cord injury, and to explore whether nestin＋/GFAP＋ cells, which are detected at peak levels in gray and white matter around the ependymal region of the central canal in injured spinal cord, possess similar properties of neural stem cells. DESIGN, TIME AND SETTING： A randomized, controlled experiment. The study was performed at the Key Laboratory of Environment and Genes Related to Diseases （Xi＇an Jiaotong University）, Ministry of Education between January 2004 and December 2006. MATERIALS： Rabbit anti-rat nestin, β-tubulinⅢ, mouse anti-rat GFAP, galactocerebroside （GaLC） antibodies were utilized, as well as flow cytometry. METHODS： A total of 60 male, Sprague Dawley rats, aged 8 weeks, were randomly assigned to control （n = 12） and model （n = 48） groups. The spinal cord injury model was established in the model group by aneurysm clip compression, while the control animals were not treated. The gray and white matter around the ependymal region of the central canal exhibited peak expression of nestin＋/GFAP＋ cells. These cells were harvested and prepared into single cell suspension, followed by primary and passage cultures. The cells were incubated with serum-containing neural stem cell complete medium. MAINOUTCOME MEASURES： Nestin and GFAP expression in injured spinal cord was determined using immunohistochemistry and double-labeled immunofluorescence at 1, 3, 5, 7, 14, 28, and 56 days post-injury. In addition, cell proliferation and differentiation were detected using immunofluorescence cytochemistry and flow cytometry. RESULTS： Compared with the control group, the model group exhibited significantly increased nestin and GFAP expression （P 〈 0.05）, which

关键词： reactive astrocyte neural stem cell spinal cord injury nestin glial fibrillary acidic protein

类比预测法在城市群体建筑物震害预测中的应用

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地震工程与工程振动 2011年第5期31卷 166-171页

作者：李升才王毅恒华侨大学土木工程学院福建泉州362021

群体建筑物量大面广,为了简化群体建筑物震害预测的工作,采用类比预测法对群体建筑物震害进行了预测。从城市建筑中选取具有典型破坏特征的建筑物作为样本,通过建筑物结构类型、高度、建设年代、现状质量和用途作为震害影响因子进行震... 详细信息

群体建筑物量大面广,为了简化群体建筑物震害预测的工作,采用类比预测法对群体建筑物震害进行了预测。从城市建筑中选取具有典型破坏特征的建筑物作为样本,通过建筑物结构类型、高度、建设年代、现状质量和用途作为震害影响因子进行震害类比预测。建立规划区内建筑物易损性矩阵。最后以宁德市为例,利用本文方法给出了宁德市建筑物的易损性矩阵。并对其震害结果进行了分析统计。证明该方法具有可行性,以及较高的可靠性。

关键词：群体建筑物类比预测法震害预测样本库宁德市

NF/rGO/Co_3O_4/NiO电极的制备及在超级电容器中的应用

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高等学校化学学报 2017年第11期38卷 2031-2037页

作者：李莹莹张琦张宜恒王磊青岛科技大学化学与分子工程学院青岛266042 青岛科技大学中德科技学院青岛266042

以泡沫镍(NF)为集流体,在优化好的电位、时间和浓度下,将还原氧化石墨烯(rGO)、金属氧化物(Co_3O_4和NiO)直接生长在泡沫镍上,制备了NF/rGO/Co_3O_4和NF/rGO/Co_3O_4/NiO电极.运用三电极体系对电极材料进行了恒流充放电(GCD)和交流阻抗(... 详细信息

以泡沫镍(NF)为集流体,在优化好的电位、时间和浓度下,将还原氧化石墨烯(rGO)、金属氧化物(Co_3O_4和NiO)直接生长在泡沫镍上,制备了NF/rGO/Co_3O_4和NF/rGO/Co_3O_4/NiO电极.运用三电极体系对电极材料进行了恒流充放电(GCD)和交流阻抗(EIS)等测试.结果表明,复合材料NF/rGO/Co_3O_4/NiO具有较高的比容量(电流密度为2 A/g时,比容量达到1188.6 F/g)和较好的循环稳定性(2000周充放电后,稳定性达到80.5%).该材料还具有较高的倍率性能,当电流密度由2 A/g增至12 A/g时,倍率性能仍能达到75.7%.

关键词：超级电容器电化学沉积还原型氧化石墨烯金属氧化物

Preparation and Properties of Nanocomposite Hydrogel by Photoinitiated Polymerization

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Preparation and Properties of Nanocomposite Hydrogel by Phot...

中国材料大会2012

作者： Mengge Xia Sheng Liu yiheng wang Yan Zhang Yongtao Wu Meifang Zhu State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Material Science and EngineeringDonghua University

ISBN: (纸本)9783037856079;3037856076

A novel hybrid hydrogel (SAT gel) based on covalent crosslinking was prepared by photoinitiated polymerization. Photoactive polystyrene (PS) nanoparticles were successfully synthesized by grafting photoinitiator 2-[p-(2-hydroxy-2-methylpropiophenone)] ethylene glycol methacrylate (HMEM) onto the surface of PS nanoparticles, and characterized by nuclear magnetic resonance (NMR), fourier transform infrared spectroscopy (FTIR), high resolution transmission electron microscope (HRTEM) and dynamic light scattering (DLS). In the presence of monomer (AAm), PS nanoparticles acting as multifunctional cross-linking agents, and in-situ polymerization was carried out on the surface of photoactive particles. This study focused on the effect of photoactive PS nanoparticles concentration and illumination time on the morphology and swelling behavior of SAT hydrogels. It revealed that the three-dimensional structure and swelling ratio decreased with the increasing concentration of PS nanoparticles. Moreover, the pore size compressed with extending the illumination time. Embedding photoactive nanoparticles into hydrogels network to prepare novel hydrogels had advantages of controllable polymerization process and short forming time. This method provided a new way to prepare soft materials and to design the intelligent hydrogels.

关键词： Nanocomposite hydrogel Photoactive PS nanoparticles Photoinitiated polymerization

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海洋石油隔水管承载力动测分析研究

地震工程学报 2023年第6期45卷 1251-1256页

作者：韩亮李春王毅恒四川轻化工大学四川自贡643000 中国石油集团工程技术研究有限公司天津300451

海洋石油隔水管具有长径比大和壁厚较薄等突出特征。采用动力试验检测隔水管竖向承载力时常常忽视残余应力的影响,导致结果准确性低。依托某实际工程,开展隔水管现场动力试验和波动拟合计算承载力研究,分析连续锤击下管土体系动力响应... 详细信息

海洋石油隔水管具有长径比大和壁厚较薄等突出特征。采用动力试验检测隔水管竖向承载力时常常忽视残余应力的影响,导致结果准确性低。依托某实际工程,开展隔水管现场动力试验和波动拟合计算承载力研究,分析连续锤击下管土体系动力响应特性以及残余应力产生和作用机理,提出残余应力分析方法。通过承载力和压、拉应力计算及其对比分析可知,考虑残余应力的计算结果更能反映管土体系实际受力状态,可有效地修正上部土阻力高估和下部土阻力低估导致的误差,以提高计算承载力和应力分布的准确性。试验结果表明,考虑残余应力时隔水管承载力略高于不考虑残余应力结果;压应力在隔水管上部低于而在下部高于不考虑残余应力结果;拉应力结果与压应力相反。研究成果对隔水管在海洋石油钻井工程中安全应用方面具有十分重要的现实意义。

关键词：隔水管动力试验残余应力波动拟合土阻力分布承载力