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川渝地区机关事务标准实施研究

品牌与标准化 2024年第5期 56-58页

作者：唐海辉何鑫赖茂银仇玮玮邓棹栩四川省机关事务管理局四川成都610017 四川万豪企业管理咨询有限公司四川成都610000

本文基于川渝地区机关事务标准化建设实践研究,从机关事务标准实施的内涵、要素、方法等方面,分析并探索川渝地区跨省域标准化协调联动实施路径,为全国跨区域机关事务标准化及标准实施提供了有益的参考和借鉴。

关键词：标准实施机关事务标准化

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Method to characterize color of biochar and its prediction with biochar yield as model property

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Biochar 2021年第4期3卷 687-699页

作者： Yuxing Fan Yingying Xiong Yingying Zhang Zhangsong Jiang haihui tang Ligui Wu Mi Li Xiaoyu Xiao Cui Hu Xiaoming Zou School of Life Science Jinggangshan UniversityJi’an 343009China College of Environmental Science and Engineering Guilin University of TechnologyGuilin 541004China Zhongke-Ji’an Institute for Eco-Environmental Sciences Ji’an 343016China

Biochar has trigged increasing attention in the last decade due to its multiple functionalities,in which,color is not only the visual appearance,but also a useful indicator of relevant properties as well as an important tool to predict biochar’s ***,biochar color characterization remains challenged *** this work,three different feedstock-derived biochars were produced and basic color information(from color spaces RGB,HSB and CIE L^(*)a^(*)b^(*))of their scanned images was *** principal component analysis(PCA)and nonmetric multidimensional scaling analysis(NMDS)were employed on the combinations of different color indexes to cluster *** the assumption that clusters from both PCA and NMDS were as consistent as possible with that of visual intuition of biochar color,we identified feedstock-independent color indexes[(R+G-B)/(R+G+B),(R+B-G)/(R+G+B),(G+B-R)/(R+G+B),L,a,b]to characterize color of bio-char,which can in microscopic perspective elucidate color differences with respect to pyrolysis temperature and feedstock ***,prediction ability of color indexes with biochar yield as model property was explored and good performance was observed for both partial least squares regression(R2=0.8653)and neural network regression(R^(2)=0.9720)with the latter being more *** proposed color indexes will find more applications in prediction of biochar properties and functions in future.

关键词： Biochar Color Prediction Yield

Genetic parameter evaluation for growth and cold resistance traits of the giant freshwater prawn Macrobrachium rosenbergii

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Journal of Oceanology and Limnology 2024年第2期42卷 609-619页

作者： haihui TU Qianqian XING Zhenxiao ZHONG Qiongying tang Shaokui YI Zhenglong XIA Miaoying CAI Jingfen LI Quanxin GAO Guoliang YANG Zhejiang Provincial Key Laboratory of Aquatic Resources Conservation and Development College of Life SciencesHuzhou UniversityHuzhou 313000China Fengjiashan Reservoir Administration Bureau Baoji 721300China Jiangsu Shufeng Prawn Breeding Co.Ltd. Gaoyou 225654China

The giant freshwater prawn Macrobrachium rosenbergii distributed from tropical to subtropical regions,is a warm-water species,and its survival temperature is 14-35°C,which greatly limits its culture cycle and culture area in ***,it is urgent to cultivate a new high quality,high yield variety with improved cold-resistance,but the genetic parameters for cold-resistance traits are unknown in *** this study,the cold-resistance of adult *** populations was tested using the indoor artificial cooling *** were selected from 139 families of Shufeng G3 generation and cultured for 200 days.A linear mixed model was constructed by ASReml-R to evaluate the genetic parameters of the cold-resistance trait(cooling degree hours,CDH)and growth traits(body weight,BW,and body length,BL)based on the restricted maximum likelihood(REML)*** results show that the heritability of CDH was low(0.12±0.05),while the growth traits(BW and BL)had low to moderate heritability,with 0.20±0.06 for BW and 0.06±0.04 for *** phenotypic and genetic correlation between BW and BL was significantly positive,but significantly negative phenotypic and genetic correlations were detected between CDH and BW and between CDH and ***,the analysis of the differences between cold-resistance and phenotypic traits showed that the female reproductive status,exoskeleton hardness and claw number of adult prawns had a great influence on the cold-resistance of ***(P<0.05),indicating that adults with claws and hard exoskeletons are preferred as parents in subsequent breeding *** present results can be attributed to the selection and breeding of a new cold-resistant variety of ***.

关键词： cold-resistance growth traits heritability correlation Macrobrachium rosenbergii

Isolation,identification,and virulence gene analysis of pathogenic Aeromonas dhakensis in Macrobrachium rosenbergii and histopathological observation

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Journal of Oceanology and Limnology 2024年第2期42卷 664-675页

作者： Xin PENG haihui TU Xinyi YAO Xuan LAN Zhenxiao ZHONG Jinping LUO Qiongying tang Shaokui YI Zhenglong XIA Guoliang YANG Zhejiang Provincial Key Laboratory of Aquatic Resources Conservation and Development College of Life SciencesHuzhou UniversityHuzhou 313000China Jiangsu Shufeng Prawn Breeding Co. Ltd.Gaoyou 225654China

To identify the cause of mass mortality of adult Macrobrachium rosenbergii in a farm in Gaoyou City,Jiangsu Province,China,a dominant strain named DKQ-1 was isolated from the hepatopancreas of dying *** and identified as Aeromonas dhakensis by purification culture,biochemical characterization,and 16S rRNA and gyrB gene sequence *** results of the challenge test revealed that the strain was highly pathogenic and the 50%lethal dose(LD_(50))in 72 h to *** was 1.54×10^(5)CFU/*** amplification results of virulence genes show that strain DKQ-1 carried 9 virulence genes,including ascV,aexT,aer,act,lip,ompAI,gcaT,acg,and exu,supporting the strong virulence of strain DKQ-1 to *** observation of the hepatopancreas,gills,and intestines indicated that DKQ-1 injection into *** could cause serious tissue damage,which further supported the strong virulence of this *** addition,a drug susceptibility test revealed that strain DKQ-1 was sensitive to 16 kinds of antibiotics,resistant to 9 kinds of antibiotics,and had intermediate resistance to spectinomycin and *** study is the first report of *** isolated from *** and provided a reference for the pathogen identification of bacterial diseases in ***,and for the prevention and treatment caused by ***.

关键词： Aeromonas dhakensis histopathology virulence gene gyrB drug susceptibility test Macrobrachium rosenbergii

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基于PLC的液位控制系统设计

现代机械 2022年第1期 91-94页

作者：郑立斌唐海辉景德镇学院机械电子工程学院江西景德镇333000

论文阐述了水箱液位控制系统模型,以及基于PLC的液位控制系统实验方案设计。实验结果表明,通过基于PLC的液位控制系统的设计使用,能有效进行液位精度检测和达到可靠的控制功能,为水箱液位精度控制领域实践研究提供有利的理论依据。

关键词： PLC 水箱液位系统压力传感器设计

Effect of Stress-Dependent Thermal Conductivity on Thermo-Mechanical Coupling Behavior in GaN-Based Nanofilm Under Pulse Heat Source

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Acta Mechanica Solida Sinica 2021年第1期34卷 27-39页

作者： Qicong Li Xiaoya tang Linli Zhu haihui Ruan Department of Engineering Mechanics and Key Laboratory of Soft Machines and Smart Devices of Zhejiang ProvinceZhejiang UniversityHangzhou310027China Department of Mechanical Engineering The Hong Kong Polytechnic UniversityHong KongChina

The thermal properties of a nanostructured semiconductor are affected by multi-physical fields,such as stress and electromagnetic fields,causing changes in temperature and strain *** this work,the influence of stress-dependent thermal conductivity on the heat transfer behavior of a GaN-based nanofilm is *** finite element method is adopted to simulate the temperature distribution in a prestressed nanofilm under heat *** results demonstrate the effect of stress field on the thermal conductivity of GaN-based nanofilm,namely,the prestress and the thermal stress lead to a change in the heat transfer behavior in the *** the same heat source,the peak temperature of the film with stress-dependent thermal conductivity is significantly lower than that of the film with a constant thermal conductivity and the maximum temperature difference can reach 8.2 *** results could be useful for designing GaN-based semiconductor devices with higher reliability under multi-physical fields.

关键词： Multi-physical effect Stress-dependent thermal conductivity Prestress fields Heat transfer behavior GaN-based nanofilm Finite element method

不同老化条件对聚酰胺6微塑料吸附磺胺噻唑的影响

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环境污染与防治 2022年第2期44卷 154-159页

作者：唐海辉周世帆邹小明黄亮亮杨小凡王玉菲江长松桂林理工大学环境科学与工程学院广西桂林541004 井冈山大学生命科学学院江西吉安343009

聚酰胺类微塑料(PA-MPs)和磺胺类抗生素(SAs)均为新兴污染物且已广泛检出,其中聚酰胺6微塑料由常用的聚酰胺6塑料产生,磺胺噻唑(ST)是典型的SAs。由于微塑料在环境暴露中普遍易老化,因此探究了聚酰胺6微塑料在未老化、紫外老化、紫外和H... 详细信息

聚酰胺类微塑料(PA-MPs)和磺胺类抗生素(SAs)均为新兴污染物且已广泛检出,其中聚酰胺6微塑料由常用的聚酰胺6塑料产生,磺胺噻唑(ST)是典型的SAs。由于微塑料在环境暴露中普遍易老化,因此探究了聚酰胺6微塑料在未老化、紫外老化、紫外和H_(2)O_(2)老化(分别记为PA6、PA6-UV、PA6-UV+H_(2)O_(2))下对ST的吸附影响。结果表明,3种聚酰胺6微塑料对ST的吸附在24.0 h内基本都达到平衡,可以用伪二级动力学模型较好地拟合(R^(2)≥0.969),Freundlich模型能很好地描述吸附等温线(R^(2)≥0.967)。老化降低了聚酰胺6微塑料吸附ST的能力,平衡吸附量为PA6>PA6-UV>PA6-UV+H_(2)O_(2)。pH、盐度和溶解有机质(DOM)对聚酰胺6微塑料吸附ST有不同的影响。老化后聚酰胺6微塑料C=O含量减少,氢键作用力减弱是导致其对ST吸附能力减弱的主要原因。研究对认识微塑料的环境行为和环境风险提供了新的科学认识。

关键词：微塑料聚酰胺6 磺胺噻唑吸附老化

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软土地区大面积多层次基坑设计实例浅析

上海地质 2007年第2期 25-28,10页

作者：许锋周学明汤海辉黄晓明李发林上海地矿工程勘察有限公司上海200072 青海地质基础施工总公司上海分公司上海200072 福建省沙县国土局沙县365500

通过工程实例的总结和引申,阐述了软土地区大面积、多层次、分区开挖的基坑工程中,将围护结构设计与施工组织结合考虑的方法,提出多种因素综合考虑,多种围护形式有机结合,多种工序统筹规划的基坑围护设计思路。实践证明,该设计安全、有... 详细信息

通过工程实例的总结和引申,阐述了软土地区大面积、多层次、分区开挖的基坑工程中,将围护结构设计与施工组织结合考虑的方法,提出多种因素综合考虑,多种围护形式有机结合,多种工序统筹规划的基坑围护设计思路。实践证明,该设计安全、有效、便捷、经济,可为软土地区大面积、多层次、分区开挖的基坑设计提供参考。

关键词：软土基坑围护围护结构设计

Introduction and Influence of Water in the Preparation of Crosslinked PVC Foam by Isocyanate

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Chemical Research in Chinese Universities 2023年第5期39卷 782-789页

作者： BI Xiang LI Minggang LU Min YOU Jiangan XUE Jian YU haihui JIANG Zhiwei tang Tao College of Chemical Engineering Northeast Electric Power UniversityJilin 132011P.R.China State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022P.R.China College of Applied Chemistry and Engineering University of Science and Technology of ChinaHefei 230026P.R.China

In the preparation process of crosslinked polyvinyl chloride(c-PVC)foam by isocyanate,the formulated mixture is generally required to be carried out under the condition of isolated water,so as to avoid the mixing difficulties caused by the reaction between the introduced water and *** this paper,NaHCO_(3) was added to the mixture to indirectly introduce water into the system,and the effects of NaHCO_(3) on the cell structure and curing time of c-PVC foam were *** results showed that NaHCO_(3) not only played a role of foaming agent,but also was a good nucleating agent for *** the same time,the introduction of NaHCO_(3) held back the exudation of modified diphenylmethane-4,4'-diisocyanate(MDI)on the cell *** effects of NaHCO_(3) on the cell structure and aggregation structure of c-PVC foam were studied by thermogravimetric analysis,infrared spectroscopy and scanning electron *** results showed that decomposition of NaHCO_(3) occurred during the molding stage,which made small amount of MDI react with water to form polyurea,improved the compatibility of MDI with PVC and inhibited the exudation of MDI.

关键词： Crosslinked PVC foam Isocyanate Water Curing Sodium bicarbonate