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空调发电车微机监控系统探讨

铁道机车车辆 2002年第6期22卷 31-34页

作者：刘长新刘志明缪龙绣北方交通大学机械与电子控制工程学院北京100044

根据我国空调发电车现状和微机监控技术的发展应用 ,提出了空调发电车微机监控系统的设想 ,并对软硬件设计进行了初步探讨。

关键词：空调发电车微机监控系统软件设计硬件设计发展铁路车辆

Sonogashira coupling reaction of homopropargyl ether with aryl bromides and synthesis of 2,5-disubstituted 3-bromofurans

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Science China Chemistry 2009年第9期52卷 1314-1320页

作者： WANG xin liu LingYan chang Weixing LI Jing State Key Laboratory and Research Institute of Elemento-organic Chemistry Nankai UniversityTianjin 300071China

This paper presents Sonogashira coupling reaction of aryl bromides with protected homopropargyl alcohols such as tert-butyldimethyl(1-phenylbut-3-ynyloxy)silane and tert-butyldimethyl(1-(2,4-dichlorophenyl)but-3-ynyloxy)silane in piperidine catalyzed by PdCl2/PPh3 without copper(I). The coupling products, disubstituted acetylene, are obtained in good or excellent yields. These products can be further used for the synthesis of 2,5-disubstituted 3-bromofurans.

关键词： Sonogashira protected homopropargyl alcohol 2 5-disubstituted 3-bromofurans

BmSLC7A5 is essential for silk protein synthesis and larval development in Bombyx mori

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Insect Science 2024年第5期31卷 1425-1439页

作者： xin Tang Huawei liu xin Wang Li chang Qingsong liu Qingyou Xia Ping Zhao Integrative Science Center of Germplasm Creation in Western China(CHONGQING)Science City Biological Science Research CenterSouthwest UniversityChongqingChina Chongqing Key Laboratory of Chinese Medicine&Health Science Chongqing Academy of Chinese Materia MedicaChongqing College of Traditional Chinese MedicineChongqingChina Key Laboratory for Germplasm Creation in Upper Reaches of the Yangtze River Ministry of Agriculture and Rural AffairsChongqingChina

Insects produce silk to form cocoons,nests,and webs,which are important for their survival and ***,little is known about the molecular mecha-nism of silk protein synthesis at the translation *** solute carrier family 7(SLC7)genes are involved in activating the target of rapamycin complex 1(TORC1)signaling pathway and protein translation process,but the physiological roles of SLC7 genes in silk-producing insects have not been ***,we found that amino acid signaling regulates silk protein synthesis and larval development via the L-type amino acid trans-porter 1(LAT1;also known as SLC7A5)in Bombyx mori.A total of 12 SLC7 homologs were identified in the silkworm genome,among which BmSLC7A5 was found to be a silk gland-enriched gene and may be involved in leucine *** analy-sis indicated that SLC7A5 displays high homology and a close phylogenetic relationship in silk-producing ***,we found that leucine treatment significantly in-creased silk protein synthesis by improving the transcription and protein levels of silk ***,systemic and silk gland-specific knockout of BmSLC7A5 led to de-creased silk protein synthesis by inhibiting TORC1 signaling,and somatic mutation also resulted in arrested development from the 5th instar to the early pupal ***,our study reveals that BmSLC7A5 is involved in regulating silk protein synthesis and larval development by affecting the TORC1 signaling pathway,which provides a new strategy and target for improving silk yield.

关键词： amino acid signaling Bombyx mori larval development SLC7A5 silk pro-tein synthesis TORC1 signaling pathway

In-situ liquid-cell TEM study of radial flow-guided motion of octahedral Au nanoparticles and nanoparticle clusters

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Nano Research 2018年第9期11卷 4697-4707页

作者： chang Li xin Chen Haiyang liu Jiali Fang Xiaoqin Zhou School of Materials Science and Engineering East China University of Science and Technology Shanghai 200237 China Key Laboratory for Ultrafine Materials of Ministry of Education and Shanghai Key Laboratory of Advanced Polymeric Materials School of Materials Science and Engineering East China University of Science and Technology Shanghai200237 China

The dynamic behavior of octahedral gold nanopartides （NPs） and nanoparticle clusters （NPCs） in aqueous solution is studied by in-situ liquid-cell transmission electron microscopy （TEM）. The octahedral Au NPs/NPCs show preferential orientations in the liquid cell, due to the interaction with the SiNx window. The Au NPs show long-range reversible hopping and three-dimensional （3D） rotational motions in the liquid environment. At the same time, the Au NPCs and NPs perform slow stick-sUp and stick-roU motions, respectivel~ with a centripetal trend. The centripetal motions were explained by a liquid evaporation-induced radial flow model in which the NPCs/NPs trajectories are controlled by Stokes forces and surface friction by the silicon nitride window. The calculated radius-dependent force （Fc） on the NPCs/NPs shows a semi-linear correlation with the distance r between the NPCs/NPs and the center of mass, accompanied with stochastic fluctuations, in agreement with the model predictions. This work thus demonstrates the effectiveness of in situ liquid-cell TEM for the in-depth understanding of complicated liquid flow and force interactions in nanomaterials.

关键词： in situ transmissionelectron microscopy (TEM) nanoparticles nanoassembling nanoscale fluids trapping force

Study of thermal decoherence of harmonic oscillators

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原子与分子物理学报 2025年第5期42卷 108-114页

作者： LI Jian ZHOU Gao-Liang YAN Zheng-xin liu Wei WANG Zhao-Qi College of Science Xi’an University of Science and TechnologyXi’an 710054China

The thermal decoherence of harmonic oscillators is investigated *** quantum system presented here is a one-dimensional oscillator with angular frequency,which is surrounded by a thermal bath of environmental *** are various environmental oscillators with different angular frequency(below an ultraviolet cutoff).At the beginning,the quantum system is a pure state and the environmental oscillators are in thermodynamic equilibrium with *** a period,the system-environment interactions inspire significant decoherence of the quantum *** decoherence is displayed by explicit calculations of the purity and von Neumann entropy of the quantum *** is worth noting that the decoherence could be significant even in the weak coupling and low temperature case due to the large amount of environmental degrees of *** the decoherence process is inspired between the quantum system and an ordinary thermal environment here,the thermal decoherence result is quite general.

关键词： Quantum decoherence Grand canonical ensemble Oscillators

固化工艺对纤维缠绕炭纤维增强复合材料力学性能的影响

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陕西师范大学学报（自然科学版） 2008年第S1期36卷 26-28页

作者：张晓军常新龙刘洪超樊钰第二炮兵工程学院203教研室陕西西安710025 航天动力技术研究院陕西西安710025

以NOL环试样的拉伸强度作为考察指标,通过对T700/E-51复合材料的固化制度进行正交试验设计,研究了固化工艺对纤维缠绕炭纤维增强复合材料力学性能的影响。对试验结果进行了极差分析和方差分析,结果表明,通过正交试验设计方法研究固化工... 详细信息

以NOL环试样的拉伸强度作为考察指标,通过对T700/E-51复合材料的固化制度进行正交试验设计,研究了固化工艺对纤维缠绕炭纤维增强复合材料力学性能的影响。对试验结果进行了极差分析和方差分析,结果表明,通过正交试验设计方法研究固化工艺对复合材料性能的影响,可以大大减少试验次数;后固化温度下的保温时间对试件力学性能影响最大;目前采用的固化制度不是最优组合,需要进一步寻求最优组合。

关键词：正交试验设计固化工艺纤维缠绕 NOL环

Comprehensive bibliometric analysis of pharmacotherapy for bipolar disorders:Present trends and future directions

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World Journal of Psychiatry 2025年第1期15卷 153-167页

作者： Bo-Fan Chen Li liu Fang-Zhen Lin Hai-Min Zeng Hai-Qiang Huang Chun-Fang Zhang Cong-Cong liu Xiang Chen Jie Peng Yun-Fa Wang Zhi-Lin Wang Bin Chen De-Le liu Yun liu Zheng-Zheng Li xin-xing Zeng The Second Affiliated Hospital Jiangxi Medical CollegeNanchang UniversityNanchang 330006Jiangxi ProvinceChina The Second Clinical Medical College Jiangxi Medical CollegeNanchang UniversityNanchang 330006Jiangxi ProvinceChina Department of Rehabilitation Medicine The Second Affiliated HospitalJiangxi Medical CollegeNanchang UniversityNanchang 330006Jiangxi ProvinceChina Jiangxi Provincial People’s Hospital The First Affiliated Hospital of Nanchang Medical CollegeNanchang 330006Jiangxi ProvinceChina Department of Psychiatry Jiangxi Mental HospitalHospital of Nanchang UniversityNanchang UniversityNanchang 330029Jiangxi ProvinceChina

BACKGROUND Bipolar disorder(BD)is a severe mental illness characterized by significant mood *** drug treatment modalities are crucial for managing *** To analyze the current status and future trends of global research on BD drug treatment over the last *** The Web of Science Core Collection database spanning from 2015 to 2024 was utilized to retrieve literature related to BD drug treatment.A total of 2624 articles were *** visualization and analysis were conducted using CiteSpace,VOSviewer,Pajek,Scimago Graphica,and R-studio bibliometrix to identify RESULTS The United States,China,and the United Kingdom have made the most significant contributions to research on BD drug treatment and formed notable research collaboration *** University of Pittsburgh,Massachusetts General Hospital,and the University of Michigan have been identified as the major research institutions in this *** Journal of Affective Disorders is the most influential journal.A keyword analysis revealed research hotspots related to clinical symptoms,drug efficacy,and genetic mechanisms.A citation analysis identified the management guidelines published by Yatham et al in 2018 as the most cited *** This study provides a detailed overview of the field of BD drug treatment,highlighting key contributors,research hotspots,and future *** study findings can be employed as a reference for future research and policymaking,which may enable further development and optimization of BD pharmacotherapy.

关键词： Bipolar disorder Drug treatment Bibliometric analysis Visualization Mental disorder

Hierarchically porous CMC/rGo/CNFs aerogels for leakage-proof mirabilite phase change materials with superior energy thermal storage

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Frontiers of Materials Science 2022年第4期16卷 49-61页

作者： Fenglan CHEN xin liu Zhengya WANG Shengnian TIE chang-An WANG New Energy Photovoltaic Industry Research Center Qinghai UniversityXining 810016China School of Chemical Engineering Qinghai UniversityXining 810016China State Key Lab of New Ceramics and Fine Processing School of Materials Science and EngineeringTsinghua UniversityBeijing 100084China

As a kind of essential hydrated salt phase change energy storage materials,mirabilite with high energy storage density and mild phase-transition temperature has excellent application potential in the problems of solar time and space ***,there are some disadvantages such as supercooling,substantial phase stratification and leakage problem,limiting its further *** this work,for the preparation of shaped mirabilite phase change materials(MPcMs),graphene(GO),sodium carboxymethyl cellulose(CMC),and carbon nanofibers(CNFs)were used as starting materials to prepare lightweight CMC/rGO/CNFs carbon aerogel(CGCA)as support with stable shape,high specific surface area,and well-arranged hierarchically porous *** results show that CGCA has regular layered plentiful pores and stable foam structure,and the pore and sheet interspersed structure in CGCA stabilizes PcMs via capillary force and surface *** hydrophilic aerogels supported MPCMs decrease mirabilite leaking and reduce supercooling to around *** latent heats of melting and crystallization of CGCA-supported mirabilite phase change materials(CGCA-PCMs)are 157.1 and 114.8 J-g-1,***,after 1500 solid-liquid cycles,there is no leakage,and the retention rate of crystallization latent heat is 45.32%,exhibiting remarkable thermal cycling stability.

关键词： carbon aerogel mirabilite phase change material supercooling thermal cycling stability

Identifi cation and characterization of the bZIP transcription factor family in yellowhorn

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Journal of Forestry Research 2021年第1期32卷 273-284页

作者： Qiaoying chang xin Lu Zhi liu Zhimin Zheng Song Yu State Key Laboratory of Tree Genetics and Breeding School of ForestryNortheast Forestry UniversityHarbin 150040People’s Republic of China The College of Life Science Northeast Forestry UniversityHarbin 150040People’s Republic of China Shiny-Leaved Yellowhorn Engineering and Technology Research Center of National Forestry and Grassland Administration Chifeng 024005People’s Republic of China

The basic leucine zipper(bZIP)transcription factor family is one of the largest and most diverse families in plants,regulating plant growth and development and playing an essential role in response to abiotic and biotic ***,little is known about the biological functions of bZIP proteins in yellowhorn(Xanthoceras sorbifolium).Recently,64 XsbZIP genes were identifi ed in the yellowhorn genome and found to be disproportionately distributed in linkage *** XsbZIP proteins clustered into 11 groups based on their phylogenetic relationships with AtbZIP,ZmbZIP and GmbZIP *** intron patterns in the basic and hinge regions and additional conserved motifs were defi ned,both supporting the group classifi cation and possibly contributing to their functional *** to tandem duplication,the segment duplication greatly contributed to the expansion of yellowhorn bZIP *** addition,most XsbZIP genes harbor several stress responsive cis-elements in their promoter ***,the RNA-seq and qRT-PCR data indicated XsbZIP genes were extensively involved in response to various stresses,including salt(NaCl),cold and abscisic acid,with possibly diff erent molecular *** results provide a new understanding of the biological functions of bZIP transcription factors in yellowhorn.

关键词： Yellowhorn(Xanthoceras sorbifolium) bZIP transcription factor Abiotic stress Gene expression pattern