检索结果-南通市图书馆

Genetic and histological relationship between pheromone-secreting tissues of the musk gland and skin of juvenile Chinese forest musk deer(Moschus berezovskii Flerov,1929)

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2023年第9期24卷 807-822页

作者： Long LI Heran CAO Jinmeng YANG Tianqi JIN Yuxuan MA Yang WANG Zhenpeng LI Yining CHEN Huihui GAO chao zhu Tianhao YANG Yalong DENG Fangxia YANG Wuzi DONG College of Animal Science and Technology Northwest A&F UniversityYangling712100China College of Forestry Northwest A&F UniversityYangling712100China Biology Research Centre of Qin Mountains Wildlife Northwest A&F UniversityYangling712100China

Background The musk glands of adult male Chinese forest musk deer(Moschus berezovskii Flerov,1929)(FMD),which are considered as special skin glands,secrete a mixture of sebum,lipids,and proteins into the musk ***,these components form musk,which plays an important role in attracting females during the breeding ***,the relationship between the musk glands and skin of Chinese FMD remains ***,the musk gland and skin of Chinese FMD were examined using histological analysis and RNA sequencing(RNA-seq),and the expression of key regulatory genes was evaluated to determine whether the musk gland is derived from the *** A comparative analysis of musk gland anatomy between juvenile and adult Chinese FMD was ***,based on the anatomical structure of the musk gland,skin tissues from the abdomen and back as well as musk gland tissues were obtained from three juvenile *** tissues were used for RNA-seq,hematoxylin-eosin(HE)staining,immunohistochemistry(IHC),western blot(WB),and quantitative real-time polymerase chain reaction(qRT-PCR)*** Anatomical analysis showed that only adult male FMD had a complete glandular organ and musk pod,while juvenile FMD did not have any well-developed musk *** data revealed that 88.24%of genes were co-expressed in the skin and musk gland *** Encyclopedia of Genes and Genomes(KEGG)signaling pathway analysis found that the genes co-expressed in the abdomen skin,back skin,and musk gland were enriched in biological development,endocrine system,lipid metabolism,and other *** Ontology(GO)enrichment analysis indicated that the genes expressed in these tissues were enriched in biological processes such as multicellular development and cell ***,the Metascape predictive analysis tool demonstrated that genes expressed in musk glands were skin ***-PCR and WB revealed that sex-determining region Y-box protein 9(Sox9),Caveoli

关键词： Forest musk deer Pheromones Musk gland Skin tissues Transcriptome Sebaceous gland

Black phosphorus-based van der Waals heterostructures for mid-infrared light-emission applications

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Light(Science & Applications) 2020年第1期9卷 922-929页

作者： Xinrong Zong Huamin Hu Gang Ouyang Jingwei Wang Run Shi Le Zhang Qingsheng Zeng chao zhu Shouheng Chen Chun Cheng Bing Wang Han Zhang Zheng Liu Wei Huang Taihong Wang Lin Wang Xiaolong Chen Department of Electrical and Electronic Engineering Southern University of Science and Technology518055 ShenzhenChina Key Laboratory of Flexible Electronics(KLOFE)&Institute of Advanced Materials(IAM) Jiangsu National Synergetic Innovation Center for Advanced Materials(SICAM)Nanjing Tech University(Nanjing Tech)30 South Puzhu Road211816 NanjingChina Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control of Ministry of Education and Key Laboratory for Matter Microstructure and Function of Hunan ProvinceHunan Normal University410081 ChangshaChina Department of Materials Science and Engineering Southern University of Science and Technology518055 ShenzhenChina Center for Programmable Materials School of Materials Science and Engineering Nanyang Technological University Singapore 639798Singapore Institute of Microscale Optoelectronics Collaborative Innovation Centre for Optoelectronic Science&TechnologyKey Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong ProvinceCollege of Physics and Optoelectronic EngineeringShenzhen Key Laboratory of Micro-Nano Photonic Information TechnologyGuangdong Laboratory of Artificial Intelligence and Digital Economy(SZ)Shenzhen University518060 ShenzhenChina Frontiers Science Center for Flexible Electronics(FSCFE) Shaanxi Institute of Flexible Electronics(SIFE)&Shaanxi Institute of Biomedical Materials and Engineering(SIBME)Northwestern Polytechnical University(NPU)127 West Youyi Road710072 Xi’anChina

Mid-infrared(MIR)light-emitting devices play a key role in optical communications,thermal imaging,and material analysis ***-dimensional(2D)materials offer a promising direction for next-generation MIR devices owing to their exotic optical properties,as well as the ultimate thickness *** importantly,van der Waals heterostructures-combining the best of various 2D materials at an artificial atomic level-provide many new possibilities for constructing MIR light-emitting devices of large tuneability and high ***,we introduce a simple but novel van der Waals heterostructure for MIR light-emission applications built from thin-film BP and transition metal dichalcogenides(TMDCs),in which BP acts as an MIR light-emission *** BP–WSe_(2) heterostructures,an enhancement of~200% in the photoluminescence intensities in the MIR region is observed,demonstrating highly efficient energy transfer in this heterostructure with type-Ⅰ band *** BP-MoS_(2) heterostructures,a room temperature MIR light-emitting diode(LED)is enabled through the formation of a vertical PN heterojunction at the *** work reveals that the BP-TMDC heterostructure with efficient light emission in the MIR range,either optically or electrically activated,provides a promising platform for infrared light property studies and applications.

关键词： light phosphorus constructing

Application of DNA barcoding to the identification of Hymenoptera parasitoids from the soybean aphid （Aphis glycines） in China

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Insect Science 2014年第3期21卷 363-373页

作者： Qing-Song Zhou Yu-Qiang Xi Fang Yu Xu Zhang Xue-Jun Li Chun-Lai Liu Ze-Qing Niu chao-Dong zhu Ge-Xia Qiao Yan-Zhou Zhang Key Laboratory of Zoological Systematics and Evolution Institute of Zoology Chinese Academy of Sciences Beijing School of Life Science Anhui University Hefei College of Chemistry and Life Sciences Shenyang Normal University Shenyang plant Protection Institute Heilongjiang Academy of Agricultural Sciences Harbin China

Aphis glycines Matsumura is an important pest of soybean in Asia and North America. Hymenoptera parasitoids play a key role in the control of the soybean aphid. Thecorrect identification of parasitoids is a critical step that precedes the assessment of their potential biological control agents. Accurate identification of the majority of the speciesattacking the soybean aphid often requires elaborate specimen preparation and expert taxonomic knowledge. In this study, we facilitated the identification of soybean aphidparasitoids by applying a DNA barcoding approach following a preliminary morphological identification. We generated DNA sequence data from the mitochondrial COI gene andthe D2 region of 28S rDNA to assess the genetic variation within and between parasitoid species emerging from the soybean aphid in China. Fifteen Hymenoptera parasitoid speciesbelonging to 10 genera of five families were identified with little intra-specific variation （0.09% ± 0.06% for 28S and 0.36% ± 0. 18% for COI） and large inter-specific divergence（30.46% ± 3.42% for 28S and 20.4% ± 1.20% for COI）.

关键词： biological control COl 28S-D2 molecular identification species delimitation

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

事件驱动的网络化系统最优控制

控制与决策 2014年第5期29卷 802-808页

作者：祝超群郭戈大连海事大学信息科学技术学院辽宁大连116026

针对随机事件驱动的网络化控制系统,研究其中的有限时域和无限时域内最优控制器的设计问题.首先,根据执行器介质访问机制将网络化控制系统建模为具有多个状态的马尔科夫跳变系统;然后,基于动态规划和马尔科夫跳变线性系统理论设计满足... 详细信息

针对随机事件驱动的网络化控制系统,研究其中的有限时域和无限时域内最优控制器的设计问题.首先,根据执行器介质访问机制将网络化控制系统建模为具有多个状态的马尔科夫跳变系统;然后,基于动态规划和马尔科夫跳变线性系统理论设计满足二次型性能指标的最优控制序列,通过求解耦合黎卡提方程的镇定解,给出最优控制律的计算方法,使得网络化控制系统均方指数稳定;最后,通过仿真实验表明了所提出方法的有效性.

关键词：网络化控制系统介质访问约束事件驱动马尔科夫链最优控制

“Hepatic hilum area priority,liver posterior first”:An optimized strategy in laparoscopic resection for type Ⅲ-Ⅳ hilar cholangiocarcinoma

在线全文

学校读者我要写书评

暂无评论

World Journal of Gastrointestinal Surgery 2024年第7期16卷 2167-2174页

作者： Xiao-Si Hu Yong Wang Hong-Tao Pan chao zhu Shi-Lei Chen Shuai Zhou Hui-Chun Liu Qing Pang Hao Jin Department of Hepatopancreatobiliary Surgery Anhui No.2 Provincial People's HospitalHefei 230041Anhui ProvinceChina

BACKGROUND In recent years,pure laparoscopic radical surgery for Bismuth-Corlette type Ⅲ and Ⅳ hilar cholangiocarcinoma(HCCA)has been preliminarily explored and applied,but the surgical strategy and safety are still worthy of further improvement and *** To summarize and share the application experience of the emerging strategy of“hepatic hilum area dissection priority,liver posterior separation first”in pure laparoscopic radical resection for patients with HCCA of Bismuth-Corlette types Ⅲ and *** The clinical data and surgical videos of 6 patients with HCCA of Bismuth-Corlette types Ⅲ and Ⅳ who underwent pure laparoscopic radical resection in our department from December 2021 to December 2023 were retrospectively *** Among the 6 patients,4 were males and 2 were *** average age was 62.2±11.0 years,and the median body mass index was 20.7(19.2-24.1)kg/m^(2).The preoperative median total bilirubin was 57.7(16.0-155.7)μmol/*** patient had Bismuth-Corlette type Ⅲa,4 patients had Bismuth-Corlette type Ⅲb,and 1 patient had Bismuth-Corlette type Ⅳ.All patients successfully underwent pure laparoscopic radical resection following the strategy of“hepatic hilum area dissection priority,liver posterior separation first”.The operation time was 358.3±85.0 minutes,and the intraoperative blood loss volume was 195.0±108.4 *** of the patients received blood transfusions during the perioperative *** median length of stay was 8.3(7.0-10.0)*** bile leakage occurred in 2 patients,and all patients were discharged without serious surgery-related *** The emerging strategy of“hepatic hilum area dissection priority,liver posterior separation first”is safe and feasible in pure laparoscopic radical surgery for patients with HCCA of Bismuth-Corlette types Ⅲ and Ⅳ.This strategy is helpful for promoting the modularization and process of pure laparoscopic radical surgery for complicated HCCA,shortens the learning curve,and

关键词： Hilar cholangiocarcinoma Bismuth-Corlette typesⅢandⅣ Laparoscopy Radical resection Strategy

室温停留对7475铝合金人工时效动力学的影响

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

材料热处理学报 2010年第2期31卷 75-79,84页

作者：刘振伟朱超中国科学院金属研究所辽宁沈阳110016

人工时效前的室温停留,会对7475铝合金的人工时效产生一定的影响。通过电导率的测量,说明自然时效时由于GP区的弥散析出,导致样品的电导率持续下降;长时间室温停留后再进行人工时效时,由于GP区的形成,夺取一部分空位,使溶质原子扩散的... 详细信息

人工时效前的室温停留,会对7475铝合金的人工时效产生一定的影响。通过电导率的测量,说明自然时效时由于GP区的弥散析出,导致样品的电导率持续下降;长时间室温停留后再进行人工时效时,由于GP区的形成,夺取一部分空位,使溶质原子扩散的驱动力减小,析出反应的表观激活能变大,电导率始终低于淬火后直接进行人工时效的样品。通过JMAK方程处理了所得数据,计算出重要的时效动力学参数tC和n,并说明了各自的影响因素。

关键词： 7475铝合金时效动力学电导率室温停留

在线全文

学校读者我要写书评

暂无评论

我国煤炭行业供给侧改革探索

中国煤炭 2016年第10期42卷 5-11页

作者：朱超国家安全生产监督管理总局研究中心北京市东城区100713

从煤炭产能、生产效率、环境保护、安全生产、煤炭利用方面提出了我国煤炭供给侧存在的突出问题,分析了我国煤炭供给侧变革的新趋势,最后从化解煤炭过剩产能、优化煤炭生产结构、降低煤炭供应成本、推进煤炭绿色发展、促进煤炭与相关产... 详细信息

从煤炭产能、生产效率、环境保护、安全生产、煤炭利用方面提出了我国煤炭供给侧存在的突出问题,分析了我国煤炭供给侧变革的新趋势,最后从化解煤炭过剩产能、优化煤炭生产结构、降低煤炭供应成本、推进煤炭绿色发展、促进煤炭与相关产业融合发展以及激发煤炭产业发展新动力六个方面提出了我国煤炭行业供给侧改革的对策与途径。

关键词：煤炭供给侧改革煤炭产能产业结构供应成本绿色发展融合发展

A new adding method of foaming agent used for foam dust suppression in underground coal mines

在线全文

学校读者我要写书评

暂无评论

Journal of Central South University 2015年第8期22卷 3116-3122页

作者：陆新晓王德明朱朝炳沈威仲晓星徐超航 School of Safety Engineering China University of Mining and Technology State Key Laboratory of Coal Resources and Safe Mining(China University of Mining and Technology) Key Laboratory of Gas and Fire Control for Coal Mines of Ministry of Education(China University of Mining and Technology)

To realize a stable addition of foaming agent used for foam technology, a new adding method using the jet cavitation was introduced, and its performance was investigated experimentally under different operating conditions. Experimental results show that the bubble region in the jet device has a constant vapor pressure, which creates a good condition for liquid absorption, while it shrinks with increasing outlet pressure. The liquid absorption amount keeps unchanged when the outlet pressure is lower than a critical value. The critical outlet pressure increases by 40% with decreasing cavitation absorption amount, which is especially suitable for mini-flow quantitative addition of foaming agent used for foam dust suppression. Its effectiveness on suppressing mine dust was evaluated in a heading face of underground coal mines. Field application indicates that the reliable and simple foaming system adopting the new adding method makes a marked dust suppression effect. The working environment of heading face is significantly improved, ensuring the safe tunneling and personal security.

关键词： coal mines dust suppression jet cavitation absorption amount outlet pressure

现实主义与理想主义的交融化合——简论胡风文艺思想中的两种倾向

在线全文

学校读者我要写书评

暂无评论

齐鲁学刊 2008年第2期 147-150页

作者：朱朝辉山东大学文学与新闻传播学院山东济南250100

胡风文艺思想中存在着鲜明的现实主义倾向与理想主义倾向,这两种倾向的交融化合,使胡风文艺思想呈现出独树一帜的"异质性"。深入研究胡风文艺思想的这两种倾向,将有利于我们借鉴、运用其文艺理论的合理内核,更好地推动当代马克思主义文... 详细信息

胡风文艺思想中存在着鲜明的现实主义倾向与理想主义倾向,这两种倾向的交融化合,使胡风文艺思想呈现出独树一帜的"异质性"。深入研究胡风文艺思想的这两种倾向,将有利于我们借鉴、运用其文艺理论的合理内核,更好地推动当代马克思主义文艺理论的发展。

关键词：胡风文艺思想现实主义理想主义