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Seasonal acclimatization and temperature acclimation in small passerine birds is achieved via metabolic adjustments

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Avian Research 2023年第1期14卷 108-118页

作者： Yujie Xuan Yuan Ran Chen Jieheng Xu jiacheng zhou Ming Li Jinsong Liu College of Life and Environmental Sciences Wenzhou UniversityWenzhou325035China

Temperature and other environmental factors play an integral role in the metabolic adjustments of animals and drive a series of morphological,physiological,and behavioral adaptions essential to ***,it is not clear how the capacity of an organism for temperature acclimation translates into seasonal acclimatization to maintain *** metabolic rate(BMR),evaporative water loss(EWL),and energy budget were measured in the Chinese Hwamei(Garrulax canorus)following winter and summer acclimatization,and in those acclimatized to 15℃(cold)and 35℃(warm)under laboratory conditions for 28 *** addition to the above indicators,internal organ masses,as well as state 4 respiration and cytochrome c oxidase(COX)activity were also measured for the liver,skeletal muscle,heart,and *** winter-acclimatized and cold-acclimated birds exhibited significantly higher BMR,EWL,and energy budget,as well as organ masses,state 4 respiration,and COX activity compared with the summer-acclimatized and warm-acclimated *** indicated that the Chinese Hwamei could adapt to seasonal or just temperature changes through some physiological and biochemical thermogenic adjustments,which would be beneficial to cope with natural environmental changes.A general linear model showed that body mass,BMR,GEI,state 4 respiration in the liver and kidney,and COX activity in the skeletal muscle,liver,and kidney were significantly affected by temperature and acclimation.A positive correlation was observed between BMR and each of the other parameters(body mass,EWL,energy budget,heart dry mass,kidney dry mass,state 4 respiration)in the muscle,heart,and kidney and also between BMR and COX activity in the muscle and *** results suggested that similar to seasonal acclimatization,Chinese Hwameis subjected to temperature acclimation also exhibited significant differences in metabolism-related physiological and biochemical parameters,depending on the *** data also supported

关键词： Basal metabolic rate Garrulax canorus Laboratory acdlimation Seasonality Temperature

Highly efficient Hg2+ removal via a competitive strategy using a Co-based metal organic framework ZIF-67

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Journal of Environmental Sciences 2022年第9期34卷 33-43页

作者： jiacheng zhou Hao Zhang Tianying Xie Ye Liu Qicheng Shen Jie Yang Limei Cao Ji Yang School of Resources and Environmental Engineering State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical ProcessEast China University of Science and TechnologyShanghai 200237China Shanghai Institute of Pollution Control and Ecological Security Shanghai 200092China

The stronger coordination ability of mercury ions with organic ligands than the metal ions in metal organic framework(MOFs) provides an accessible way to separate mercury ions from solution using specific MOFs. In this study, a Co-based MOF(ZIF-67, Co(mIM)) was synthesized. It did not introduce specific functional groups, such as-SH and-NH, into its structure through complicated steps. It separate Hgfrom wastewater with a new strategy, which utilized the stronger coordination ability of Hgwith the nitrogen atom on the imidazole ring of the organic ligand than the Coions. Hgreplaced Conodes from ZIF-67 and formed a more stable precipitate with m IM. The experimental results showed that this new strategy was efficient. ZIF-67 exhibited Hgadsorption capacity of 1740 mg/g, much higher than the known MOFs sorbents. m IMs is the reaction center and ZIF-67 can improve its utilization. The sample color faded from purple to white due to the loss of cobalt ion. It is a great feature of ZIF-67 that allows users to judge whether the sorbent is deactivated intuitively. ZIF-67 can be sustainable recycled by adding organic ligands to the solution after treatment due to its simple synthesis method at room temperature. It’s a high-efficient and sustainable sorbent for Hgseparation from wastewater.

关键词： ZIF-67 Hg2+removal Coordination competition

Dissecting the molecular basis of spike traits by integrating gene regulatory networks and genetic variation in wheat

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Plant Communications 2024年第5期5卷 57-74页

作者： Guo Ai Chao He Siteng Bi Ziru zhou Ankui Liu Xin Hu Yanyan Liu Liujie Jin jiacheng zhou Heping Zhang Dengxiang Du Hao Chen Xin Gong Sulaiman Saeed Handong Su Caixia Lan Wei Chen Qiang Li Hailiang Mao Lin Li Hao Liu Dijun Chen Kerstin Kaufmann Khaled FAlazab Wenhao Yan National Key Laboratory of Crop Genetic Improvement Hubei Hongshan LaboratoryHuazhong Agricultural UniversityWuhan 430070China College of Plant Science and Technology Huazhong Agricultural UniversityWuhan 430070China Shenzhen Institute of Nutrition and Health Huazhong Agricultural UniversityWuhan 430070China Shenzhen Branch Guangdong Laboratory for Lingnan Modern AgricultureGenomeAnalysis Laboratory of the Ministry of AgricultureAgricultural Genomics Institute at ShenzhenChinese Academy of Agricultural SciencesShenzhen 518120China State Key Laboratory of Pharmaceutical Biotechnology School of Life SciencesNanjing UniversityNanjing 210023China Department for Plant Cell and Molecular Biology Institute for BiologyHumboldt-Universitat Zu Berlin10115 BerlinGermany Plant Research Department Nuclear Research CenterEgyptian Atomic Energy AuthorityCairo 13759Egypt

Spike architecture inﬂuences both grain weight and grain number per spike,which are the two major components of grain yield in bread wheat(Triticum aestivum L.).However,the complex wheat genome and the inﬂuence of various environmental factors pose challenges in mapping the causal genes that affect spike ***,we systematically identified genes involved in spike trait formation by integrating information on genomic variation and gene regulatory networks controlling young spike development in *** identified 170 loci that are responsible for variations in spike length,spikelet number per spike,and grain number per spike through genome-wide association study and meta-QTL *** constructed gene regulatory networks for young inﬂorescences at the double ridge stage and theﬂoret primordium stage,in which the spikelet meristem and theﬂoret meristem are predominant,respec-tively,by integrating transcriptome,histone modification,chromatin accessibility,eQTL,and protein–pro-tein interactome *** these networks,we identified 169 hub genes located in 76 of the 170 QTL regions whose polymorphisms are significantly associated with variation in spike *** functions of TaZF-B1,VRT-B2,and TaSPL15-A/D in establishment of wheat spike architecture were *** study provides valuable molecular resources for understanding spike traits and demonstrates that combining genetic analysis and developmental regulatory networks is a robust approach for dissection of complex traits.

关键词： bread wheat spike traits genetic variation protein–protein interaction gene regulatory network

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粉细砂填筑路基结构形式探讨

铁道建筑 2010年第5期50卷 71-73页

作者：周家成方焘锦州铁道勘察设计院有限公司辽宁锦州121000 华东交通大学土木建筑学院南昌330013

通过对锡乌线、大郑线、巴新线、甘库线等沿线粉细砂的物理力学性质的试验分析和粉细砂填筑路基工程实践经验的总结,对粉细砂填筑路基的意义和填筑路堤的结构形式进行探讨,并从路基强度、刚度、耐久性、稳定性和工程造价等角度,对粉细... 详细信息

通过对锡乌线、大郑线、巴新线、甘库线等沿线粉细砂的物理力学性质的试验分析和粉细砂填筑路基工程实践经验的总结,对粉细砂填筑路基的意义和填筑路堤的结构形式进行探讨,并从路基强度、刚度、耐久性、稳定性和工程造价等角度,对粉细砂填筑路基四种结构形式的可行性和优缺点进行了对比分析。

关键词：粉细砂路基结构形式

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基于激光划刻的石墨烯发声器的研究

仪器仪表学报 2022年第3期43卷 171-177页

作者：赵程周佳成张顺毅王德波南京邮电大学集成电路科学与工程学院南京210023

本文研究了一种基于激光划刻的石墨烯发声器。为了研究不同结构石墨烯发声器对输出性能的影响,本文设计了实心、粗网、中网、细网四种结构的石墨烯发声器。首先,建立了实心结构和网状结构的热声转换模型;然后,给出了激光划刻石墨烯的制... 详细信息

本文研究了一种基于激光划刻的石墨烯发声器。为了研究不同结构石墨烯发声器对输出性能的影响,本文设计了实心、粗网、中网、细网四种结构的石墨烯发声器。首先,建立了实心结构和网状结构的热声转换模型;然后,给出了激光划刻石墨烯的制备流程和扫描电镜表征;最后,实验测试了四种结构的石墨烯发声器的输出性能。实验结果表明,实心结构的输出性能最佳,在输入功率为0.78 W、麦克风距离为5 cm、激励频率为20 kHz的条件下,声压级达到40.68 dB。研究发现在0~0.78 W的范围内,输入功率每增加0.1 W,理论声压级平均提高2.58 dB,实验声压级平均提高2.48 dB,与理论模型基本符合。基于激光划刻的石墨烯发声器具有成本低、制备简单、声学性能好等优势,在生物、医疗、可穿戴电子设备等领域具有广泛的应用前景。

关键词：石墨烯发声器激光划刻技术热声转换模型声压级扫描电镜

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基于PLC的圆网印花机浆料供给系统设计

国外电子测量技术 2021年第12期40卷 125-130页

作者：周佳成楚建安西安工程大学电子信息学院西安710048

针对圆网印花机在印染车间浆料配送效率低下,不能对浆料用量进行计量等问题,提出了一种基于西门子S7-200 Smart型PLC控制的浆料供给系统。整个系统的核心是采用定量泵对浆料进行可计量的供给,定量泵控制系统接受印花机供浆主控模块下发... 详细信息

针对圆网印花机在印染车间浆料配送效率低下,不能对浆料用量进行计量等问题,提出了一种基于西门子S7-200 Smart型PLC控制的浆料供给系统。整个系统的核心是采用定量泵对浆料进行可计量的供给,定量泵控制系统接受印花机供浆主控模块下发指令,通过与变频器、齿轮泵、工业触摸屏三者互相配合,实现了对供浆系统的运行控制。通过对系统进行实验,验证了电机转数与浆料流量存在线性关系,并得出了数学模型表达式。该供浆控制系统能够完全满足生产运行要求,能够提高浆料供给效率,减少浆料浪费,在行业内具有一定的推广价值。

关键词： PLC 变频器定量泵控制系统

基于ANSYS/LS-DYNA板级焊点跌落分析

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电子元件与材料 2018年第2期37卷 75-78页

作者：周嘉诚刘芳武汉纺织大学机械工程与自动化学院湖北武汉430073

研究了不同跌落条件对板级焊点跌落时的应力变化影响。运用有限元软件ANSYS的LS-DYNA模块对电路板组件进行建模与跌落分析,比较不同跌落高度和不同刚性跌落面下板级焊点的应力变化。结果发现:通过LS-DYNA模块对电路板组件进行跌落仿真,... 详细信息

研究了不同跌落条件对板级焊点跌落时的应力变化影响。运用有限元软件ANSYS的LS-DYNA模块对电路板组件进行建模与跌落分析,比较不同跌落高度和不同刚性跌落面下板级焊点的应力变化。结果发现:通过LS-DYNA模块对电路板组件进行跌落仿真,能更加真实地反映出电路板组件的跌落情况。跌落后焊点的应力集中区域出现在焊点与靠近封装一侧的接触面边缘处,且跌落高度越高,焊点的最大应力值越大;接触面材料刚性越大,焊点应力分布越大,焊点越容易失效。

关键词： LS-DYNA 焊点跌落应力刚性失效

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基于视觉检测的非接触式膏体浓度识别方法

中南大学学报（自然科学版） 2023年第5期54卷 1942-1953页

作者：马博渊周佳城班晓娟袁兆麟阮竹恩北京科技大学北京材料基因工程高精尖创新中心北京100083 北京科技大学顺德创新学院广东佛山528300 北京科技大学材料领域知识工程北京市重点实验室北京100083 北京科技大学人工智能研究院北京100083 北京科技大学计算机与通信工程学院北京100083

为解决膏体料浆对于接触式浓度计的损坏以及核子浓度计对施工人员的辐射等问题,提出一种基于视觉检测的非接触式膏体浓度识别方法,以膏体图像数据集为基础,采用卷积神经网络模型提取膏体深度特征,设计多模型全连接层融合算法、伽马矫正... 详细信息

为解决膏体料浆对于接触式浓度计的损坏以及核子浓度计对施工人员的辐射等问题,提出一种基于视觉检测的非接触式膏体浓度识别方法,以膏体图像数据集为基础,采用卷积神经网络模型提取膏体深度特征,设计多模型全连接层融合算法、伽马矫正数据增广策略,对膏体浓度监测准确率进行分析。研究结果表明:手动搅拌膏体数据集的准确率为88.79%,在自动搅拌膏体数据集上获得91.42%的准确率,可有效提高浓度识别准确性,避免浓度计损坏或辐射危险。

关键词：膏体充填非接触式浓度识别深度学习图像分类模型融合

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热与随机振动对车载电路板的影响研究

现代电子技术 2018年第10期41卷 19-23,27页

作者：周嘉诚刘芳燕怒武汉纺织大学湖北武汉430073

研究汽车在行驶中发动机发热与振动两者共同作用对车载电路板组件产生的影响。运用有限元软件ANSYS对发动机模块电路板建模,温度场热应力分析,将应力结果导入模态分析和随机振动分析中,再比较电路板在常温与受热后的模态与随机振动结果... 详细信息

研究汽车在行驶中发动机发热与振动两者共同作用对车载电路板组件产生的影响。运用有限元软件ANSYS对发动机模块电路板建模,温度场热应力分析,将应力结果导入模态分析和随机振动分析中,再比较电路板在常温与受热后的模态与随机振动结果。结果发现,电路板受热后固有频率提高,且其刚度增大,电路板变形减小。此外,该电路板组件应力最大点的统计应力值在第8阶频率下达到最大,且较常温相比,电路板受热后的功率谱曲线整体有所后移。通过随机疲劳计算,在热与振动影响下,该电路板结构满足疲劳要求。

关键词：车载电路板热应力 ANSYS 模态分析随机振动疲劳计算