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空心刨花板填充免漆木质复合门门扇生产工艺浅析

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中国人造板 2024年第7期31卷 23-26页

作者：李文浩王泽伟张国梁常亮孙照斌胡继文河北农业大学机电工程学院河北保定071001 河北农业大学林学院河北保定071001 永清霍尔茨门业有限公司河北廊坊065600

介绍免漆木质复合门门扇的生产工艺流程,阐述其生产所用材料的部分尺寸、性能参数,分析空心刨花板铺装方式对门扇变形的影响,以期为免漆木质复合门门扇的生产提供参考。

关键词：空心刨花板木质复合门生产工艺

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畜禽血液外泌体功能及其资源开发研究进展

肉类研究 2024年第3期38卷 70-77页

作者：徐荣鹭麦籍文石雨薇曹锦轩张婵杨鑫垚王雪儿吴世翔王颖北京工商大学食品与健康学院老年营养与健康教育部重点实验室北京100048

我国畜禽血液资源十分丰富,目前血液蛋白精深加工、血液蛋白活性肽酶解、氯化血红素制备等工作已取得明显成效。近年来,血液外泌体作为一类新型功能性成分,已被证明具有多种功能活性,在食品营养补充剂方面具有极强的开发潜力。然而,血... 详细信息

我国畜禽血液资源十分丰富,目前血液蛋白精深加工、血液蛋白活性肽酶解、氯化血红素制备等工作已取得明显成效。近年来,血液外泌体作为一类新型功能性成分,已被证明具有多种功能活性,在食品营养补充剂方面具有极强的开发潜力。然而,血液外泌体的基础研究还处于起步阶段。为了未来更好地对血液外泌体进行有效资源开发,本文对其结构与化学组成进行概述,回顾血液外泌体功能活性的近年研究进展,综述不同提取、保存方法对血液外泌体活性的影响,对血液外泌体未来潜在的生产应用进行展望,旨在为畜禽血液资源挖掘、血液外泌体的进一步开发及应用提供思路。

关键词：畜禽血液血液深加工血液外泌体功能活性资源挖掘

Study on crustal, lithospheric and asthenospheric thickness beneath the Qinghai-Tibet Plateau and its adjacent areas

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Chinese Science Bulletin 2007年第6期52卷 797-804页

作者： zhang XueMei SUN RuoMei TENG jiwen Institute of Geology and Geophysics Chinese Academy of Sciences Beijing 100029 China College of Geo-exploration Science and Technology Jilin University Changchun 130026 China

Based on the results of pure dispersions of Rayleigh wave tomography in the Qinghai-Tibet Plateau and its adjacent areas, taking S wave velocities from previous linear inversion as the initial model, us-ing the simulated annealing algorithm, a nonlinear simultaneous inversion has been carried out for S wave velocity and thickness of different layers, including the crust, the lithosphere and the astheno-sphere. The results indicate: The crustal thickness shows strong correlation with geology structures sketched by the sutures and major faults. The crust is very thick in the Qinghai-Tibet Plateau, varying from 60 km to 80 km. The lithospheric thickness in the Qinghai-Tibet Plateau is thinner (130―160 km) than its adjacent areas. And two blocks can be recognized, divided by an NNE strike boundary running between 90°E―92°E inside the plateau. Its asthenosphere is relatively thick, varies from 150 km to 230 km, and the thickest area is located in the western Qiangtang. India has a thinner crust (32―38 km), a thicker lithosphere of 190 km and a rather thin asthenosphere of only 60 km. Sichuan and Tarim basins have the crust thickness less than 50 km. Their lithospheres are thicker than the Qinghai-Tibet Plateau, and their asthenospheres are thinner. A discussion has been made on the character and formation mechanism of the typical crust-mantle transition zone in the western Qiangtang block.

关键词：青藏高原邻近地区地壳厚度岩石圈厚度岩流圈厚度

脾虚证实验动物模型构建及评价方法的研究述评

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中国实验动物学报 2024年第3期32卷 385-396页

作者：张永龙马唯刚钱星羽赵素红李姗姗郭永明徐枝芳潘兴芳邱继文郭义李忠正天津中医药大学实验针灸学研究中心天津301617 天津中医药大学针灸推拿学院天津301617 天津中医药大学医学技术学院天津301617 天津中医药大学天津301617

中医症候实验动物模型的构建在中医药作用机理研究方面起到重要支撑作用,近年来脾虚证动物模型的构建和评价文献报道越来越多,但是构建方法标准不一,评价指标客观化不足,本文将从动物选取、模型建立、宏观表征、行为学实验、脾虚的客观... 详细信息

中医症候实验动物模型的构建在中医药作用机理研究方面起到重要支撑作用,近年来脾虚证动物模型的构建和评价文献报道越来越多,但是构建方法标准不一,评价指标客观化不足,本文将从动物选取、模型建立、宏观表征、行为学实验、脾虚的客观指标等方面总结脾虚动物模型的构建和评价方法,以期为脾虚证实验动物模型的构建提供理论指导,为脾虚动物模型平台的选取提供文献参考。

关键词：脾虚证动物模型评价方法综述

Crustal wide-angle reflection imaging along Lianxian-Gangkou profile in Guangdong province,China

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Earthquake Science 2009年第4期22卷 357-363页

作者： Zhongjie zhang Bing Zhao Xi zhang jiwen Teng State Key Laboratory of Lithospheric Evolution Institute of Geology and Geophysics Chinese Academy of Sciences Beijing 100029 China

A 400 km-long wide-angle seismic experiment along Lianxian-Gangkou profile in South China was carried out to study contact relationship between southeast continental margin of Yangtze block and northwest continental margin of Cathaysia block. We reconstructed crustal wide-angle reflection structure by the depth-domain pre-stack migration and the crustal velocity model constructed from the traveltime fitting. The wide-angle reflection section shows different reflection （from crystalline basement and Moho） pattern beneath the Yangtze and Cathaysia blocks, and suggests the Wuchuan-Sihui fault is the boundary between them. A cluster of well-developed reflections on Moho and in its underlying topmost mantle probably comes from alternative thin layers, which may be seismic signature of strong interaction between crust and mantle in the tectonic environment of lithosphere extension.

关键词： Yangtze block Cathaysia block seismic sounding seismic wide-angle reflection Moho reflection clustering crust/mantle interaction

Microbial assembly, interaction, functioning, activity and diversification: a review derived from community compositional data

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Marine Life Science & Technology 2019年第1期1卷 112-128页

作者： jiwen Liu Zhe Meng Xiaoyue Liu Xiao-Hua zhang MOE Key Laboratory of Marine Genetics and Breeding College of Marine Life SciencesOcean University of ChinaQingdao 266003China Laboratory for Marine Ecology and Environmental Science Qingdao National Laboratory for Marine Science and TechnologyQingdao 266071China Institute of Evolution and Marine Biodiversity Ocean University of ChinaQingdao 266003China

Microorganisms play crucial roles in maintaining ecosystem stability. The last two decades have witnessed an upsurge instudies on marine microbial community composition using high-throughput sequencing methods. Extensive mining ofthe compositional data has provided exciting new insights into marine microbial ecology from a number of perspectives.Both deterministic and stochastic processes contribute to microbial community assembly but their relative importance instructuring subcommunities, that are categorized by traits such as abundance, functional type and activity, differs. Throughcorrelation-based network analysis, significant progress has been made in unraveling microbial co-occurrence patterns anddynamics in response to environmental changes. Prediction of ecosystem functioning, based on microbial data, is receivingincreasing attention, as closely related microbes often share similar ecological traits and microbial diversity often exhibitssignificant correlations to ecosystem functioning. The ecosystem functioning is likely executed not by the whole community,but rather by an active fraction of a community, which can be inferred from the marker gene transcription level of communitymembers. Furthermore, the huge amount of microbial community data has significantly expanded the tree of lifeand illuminated microbial phylogenetic divergence and evolutionary history. This review summarizes important findingsin microbial assembly, interaction, functioning, activity and diversification, highlighting the interacting roles of differentaspects, derived from community compositional data.

关键词： rRNA gene Microbial community-Assembly Interaction Ecosystem functioning

Microtubule Assists Actomyosin to Regulate Cell Nuclear Mechanics and Chromatin Accessibility

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Research 2023年第3期6卷 619-631页

作者： jiwen Geng Zhefeng Kang Qian Sun Man zhang Peng Wang Yupei Li Jiameng Li Baihai Su Qiang Wei Department of Nephrology West China HospitalSichuan UniversityChengdu610041China College of Polymer Science and Engineering College of Biomedical EngineeringState Key Laboratory of Polymer Materials and Engineering Sichuan UniversityChengdu610065China Department of Cardiovascular Surgery West China HospitalSichuan UniversityChengdu610041China

Cellular behaviors and functions can be regulated by mechanical cues from microenvironments,which are transmitted to nucleus through the physical connections of cytoskeletons in the cells.How these physical connections determine transcriptional activity were not clearly known.The actomyosin,which generates intracellular traction force,has been recognized to control the nuclear morphology.Here,we have revealed that microtubule,the stiffest cytoskeleton,is also involved in the process of nuclear morphology alteration.The microtubule negatively regulates the actomyosin-induced nuclear invaginations but not the nuclear wrinkles.Moreover,these nuclear shape changes are proven to mediate the chromatin remodeling,which essentially mediates cell gene expression and phenotype determination.The actomyosin disruption leads to the loss of chromatin accessibility,which can be partly recovered by microtubule interference through nuclear shape control.This finding answers the question of how mechanical cues regulate chromatin accessibility and cell behaviors.It also provides new insights into cell mechanotransduction and nuclear mechanics.

关键词： determination behaviors stiff

Remarkable Improvement of Ferroelectric Properties and Leakage Current in BiFeO_3 Thin Films by Nd Modification

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Journal of Wuhan University of Technology(Materials Science) 2018年第1期33卷 64-67页

作者：韩冬王华 XU jiwen zhang Xiaowen YANG Ling School of Materials Science and Engineering Guilin University of Electronic Technology

Ferroelectric and leakage properties are important for ferroelectric applications. Pure and Nd-doped（x=0.05-0.20） BiFeO3 thin films were fabricated by sol-gel method on FTO substrates. The phase structure, surface morphology, leakage current, ferroelectric properties, and optical properties of BiFeO3-based thin films were investigated. The substitution of Nd^3＋ ions for the Bi^3＋ site converts the structure from rhombohedral to coexisting tetragonal and orthorhombic. Nd doping improves the crystallinity of BiFeO3 thin films. The leakage current of Nd-doped BiFeO3 decreases by two to three orders of magnitude compared with that of pure BiFeO3. Among the samples, 15% Nd-doped BiFeO3 exhibits the strongest ferroelectric polarization of 17.96 μC/cm^2. Furthermore, the absorption edges of Bi1-xNdxFeO3 thin films show a slight red-shift after Nd doping.

关键词： BiFeO3 thin film ferroelectric leakage current sol-gel

The 3-D structure of shear wave in South China and the southward extension of Tanlu fault

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Chinese Science Bulletin 2001年第4期46卷 284-289页

作者： TENG jiwen WANG Guangjie zhang Zhongjie HU Jiafu Institute of Geology and Geophysics Chinese Academy of SciencesBeijing 100101China Yunnan University Kunming 650091China

By processing the CSND Rayleigh wave data with the matched filter FTAN technique, Rayleigh wave dispersion for southeast China is obtained. The 4°×4°S wave dispersion of the pure path is calculated using random inversion scheme, and 3-D S wave velocity structure is set up. Incorporating the above-mentioned results with wide angle seismic sounding data, we studied structure framework and the extending of faults in this area, which demonstrates that the depth of Moho in South China varies from 30 to 40 km, shallower from west to east. The depth of Moho varies from 25 to 28 km for the offshore. The depth of the asthenosphere in upper mantle varies from 60 to 100 km. The depth difference of layers at the two sides of Tanlu fault is more than 10 km at the south part of the Yangtze River, and the fault extends downward more than 170 km. The fault exceeds the main land at Hainan Island and slips into the southern China Sea. Both Tanlu fault and the huge bend of gravity gradient anomaly are influenced by

关键词： seismic surface wave Moho mantle cover layer as-thenosphere 3-D velocity structure Tanlu fault.