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Oceanic lithosphere heterogeneity in the eastern Paleo-Tethys revealed by PGE and Re-Os isotopes of mantle peridotites in the Jinshajiang ophiolite

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Geoscience Frontiers 2021年第3期12卷 416-427页

作者： Yan-junWang wen-jun hu Hong Zhong Wei-Guang Zhu Zhong-Jie Bai State Key Laboratory of Nuclear Resources and Environment East China University of TechnologyNanchang 330013China State Key Laboratory of Ore Deposit Geochemistry Institute of GeochemistryChinese Academy of SciencesGuiyang 550081China Department of Earth Sciences The University of Hong KongHong KongChina College of Earth and Planetary Sciences University of Chinese Academy of SciencesBeijing 100049China

Platinum group elements(PGE)and Re-Os isotopes of mantle peridotites in the Jinshajiang ophiolite(SW China)were investigated in this study,in order to constrain the evolution of the lithospheric mantle beneath the Jinshajiang-Ailaoshan Ocean,which was a branch of the eastern *** Jinshajiang peridotites have whole-rock compositions(e.g.,MgO=32.7-38.1 wt.%;Al_(2)O_(3)=0.67-1.30 wt.%)and spinels with moderate Cr#values(0.4-0.6)similar to those of abyssal peridotites,which indicate moderate degrees of partial melting(15%-20%).These peridotites exhibit U-shaped chondrite-normalized REE patterns that could be caused by hydrothermal alteration or melt-rock interaction after mantle *** addition,Pd concentrations and(Pd/Ir)_(N)ratios of the Jinshajiang peridotites increases with decreasing Al_(2)O_(3) *** negative correlations cannot be explained by simple partial melting but record a melt-rock reaction event after mantle *** study therefore demonstrates the efficiency of PGE in detecting the melt-rock reaction process relative to whole-rock major and trace *** suprachondritic^(187)Os/^(188)Os ratios(0.1272-0.1374)further indicate that the later percolating melt derived from a mantle domain with distinct^(187)Os-enriched isotopic *** comparison with peridotites in the Ailaoshan ophiolite belt,which were not significantly affected by melt percolation,this study further highlights that the lithospheric mantle compositions beneath different segments of the same ocean basin are highly variable and might be controlled by distinct mantle processes in response to different rifting mechanisms.

关键词： Jinshajiang ophiolite Paleo-Tethys Mantle peridotites Melt-rock reaction

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Strenghening mechanism of graphene/Ni nanolayered composite nanowires under uniaxial compression

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Science China(Physics,Mechanics & Astronomy) 2016年第3期59卷 107-108页

作者： Zhen Yu Yang Jian Sun Zi Xing Lu wen jun hu Institute of Solid Mechanics Beihang University Institute of Structure Mechanics China Academy of Engineering Physics

Dear Editors,Graphene exhibits excellent mechanical properties and at- tracts great attention and intensive study in applied physics and material science [1]. In particular, the extreme sur- face-to-volume ratio of graphene makes it possible to be an ideal reinforcement for nanocomposites. Over the past dec- ade, researchers have synthesized graphene-based nano- composites with superior mechanical properties [2]. Kim et al. [3] recently successfully fabricated Cu- and Ni- matrices nanolayered composites reinforced by only a single layer of graphene and the experiments showed that the strength of the composites can be highly enhanced. As a consequence, the strengthening mechanisms of graphene/metal nanolay- ered composites aroused great interest in recent years.

关键词：纳米线石墨压缩机制纳米复合单轴复合材料镍材料科学

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Dimensionless model to determine spontaneous combustion danger zone in the longwall gob

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西安科技大学学报 2011年第6期31卷 649-654页

作者： ZHANG Xin-hai DENG jun wen hu College of Energy Science and Engineering Xi＇ an University of Science and Technology Xi＇ an 710054 China

According to spontaneous combustion propensity,the longwall gob is divided into three zones,including heat dissipation zone,self-heating zone and the choking *** in the self-heating zone can temperature of coal rise due to *** the distribution of the "Three Zones" in gob is important for predicting and preventing spontaneous combustion in *** normal mining operations,temperature of coal is roughly *** process of mass transfer in the gob is considered to be *** on mass conservation,gas species conservation,darcy's law,Ficks law of diffusion and coal oxidation 1-grade reaction rule,governing equation for air leakage intensity and species concentration are *** critical value of coal spontaneous combustion and the size of longwall workface as basic dimension,a dimensionless steady coupled model of air flow diffusion and chemical reaction in loose coal of Fully Mechanized Top-Coal Caving Mining Workface(FMTCCMW) is *** solving the model numerically,regulation of three zones' distribution and spontaneous combustion in the gob can be *** results can be easily popularized to prediction of spontaneous combustion in other coalmines' longwall gob.

关键词： fully mechanized top-coal caving workface spontaneous combustion dimensionless model

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Two secretory pathways of proteins secretion

Two secretory pathways of proteins secretion

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首届东方药理论坛暨2018年全国心脑血管药理学术会议、上海市药理学会第十九届学术年会

作者： wen-jun hu Chao-Yu Miao Department of Pharmacology Second Military Medical University

Secretory proteins are important for physiological and pathological processes,and have significance in clinical diagnosis or *** all secretory proteins are synthesized in cytoplasm and secreted by cells,the spots where they exert their bio-functions and the ways by which they are transported to their targeting destinations are diverse from each *** pathway is a process of moving proteins from one point to another,also known as ***,the secretory pathways are generally divided into two categories,the classical secretory pathway mediated by a signal peptide(SP) which is a length of conserved amino acids present at the N-terminus of the nascent polypeptide,and the non-classical secretory pathway which is ***,with the development of secretory proteomics,more and more novel secretory proteins have come into *** lab has been dedicated in studying a novel protein—Metrnl,which is evidenced as a secretory protein with emerging ***,the secretion of proteins is important for their functional execution,and current researches have shown molecular interactions during the process,which provides a relevant sight on studying secretory ***,the understanding of the secretory pathway would be conducive to in-depth researches on functional mechanisms of the *** this review,we mainly overview the major procedure of classical secretory pathway and briefly summarize several kinds of the non-classical secretions.

关键词： secretory proteins secretory pathway ER-Golgi pathway vesicular transport

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Experimental Study and Property Analysis of Seal-filling Hydrogel Material for Hermetic Wall in Coal Mine

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Journal of Wuhan University of Technology(Materials Science) 2010年第1期25卷 152-155页

作者：罗振敏 School of Energy Engineering Key Western China Laboratory for Coal Exploitation Development and Safety for Ministry of EducationXi'an University of Science and Technology

The effects of monomer, crosslinker, and accelerator content on the mechanical property of seal-filling hydrogel material for building hermetic wall were analyzed through a series of single-direction compression experiments. Grey predication by GM（1,1） model was also used to analyze the persistent property of hydrogel material. The results showed that the elastic modulus and strength of seal-filling hydrogel increased, and the elastic tended to reduce with the growth of monomer and crosslinker content. In comparison, the effect of accelerator content was diametrically opposed. At the same time, staggered change of elastic modulus occurred and its demarcation point generally appeared at the point of 50% of vertical deformation value. In addition, through the testing of correlation degree, the accuracy of the grey prediction model to test the persistent stability of hydrogel material can be proved. As the concentration of hydrophilic monomer in hydrogel material increased, the stability was improved. The energy originated from explosion shock wave can be absorbed by seal-filling hydrogel through deformation.

关键词： hermetic wall hydrogel mechanical property persistent stability

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Wave effect of gravitational waves intersected with a microlens field Ⅱ:An adaptive hierarchical tree algorithm and population study

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 241-254页

作者： Xikai Shan Guoliang Li Xuechun Chen wen Zhao Bin hu Shude Mao Department of Astronomy Tsinghua University Purple Mountain Observatory Chinese Academy of Sciences Institute for Frontier in Astronomy and Astrophysics Beijing Normal University School of Physics and Astronomy Beijing Normal University School of Astronomy and Space Science University of Science and Technology of China CAS Key Laboratory for Researches in Galaxies and Cosmology Department of Astronomy University of Science and Technology of ChinaChinese Academy of Sciences

The gravitational lensing wave effect generated by a microlensing field embedded in a lens galaxy is an inevitable phenomenon in strong lensed gravitational waves （SLGWs）.This effect presents both challenges and opportunities for the detection and application of ***,investigating this wave effect requires computing a complete diffraction integral over each microlens in the *** is extremely time-consuming due to the large number of microlenses （10～3-10～6）.Therefore,simply adding all the microlenses is ***,the complexity of the time delay surface makes the lens plane resolution a crucial factor in controlling numerical *** this paper,we propose a trapezoid approximation-based adaptive hierarchical tree algorithm to meet the challenges of calculation speed and *** find that this algorithm accelerates the calculation by four orders of magnitude compared to the simple adding method and is one order of magnitude faster than the fixed hierarchical tree algorithm proposed for electromagnetic *** importantly,our algorithm ensures controllable numerical errors,increasing confidence in the *** with our previous work （***.66,239511,2023）,this paper addresses all numerical issues,including integral convergence,precision,and computational time1).Finally,we conducted a population study on the microlensing wave effect of SLGWs using this algorithm and found that the microlensing wave effect cannot be ignored,especially for Type II SLGWs （from saddle position of the time delay surface） due to their intrinsic geometric structures and their typical intersection with a denser microlensing ***,more than 33%（11%） of SLGWs have a mismatch larger than 1%（3%） compared to the unlensed ***,we found that the mismatch between signal pairs in a doubly imaged GW is generally larger than 10-3,and 61%（25%） of signal pairs have a mismatch larger than 1%（3%）.Therefo

关键词： gravitational lensing diffractional integral algorithm gravitational wave

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Is it possible to foot reflexology for infants with sensorineural hearing loss?

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World Journal of Clinical Cases 2025年第2期13卷 1-4页

作者： Min Ai Hang-Hang Zhang jun-Bang Feng Chuan-Ming Li wen-Jing Wang Meng-Die hu Department of Anesthesiology Nanan District People's Hospital of ChongqingChongqing 400060China Department of Breast and Thyroid Surgery Chongqing Bishan District Maternal and Child Health Care HospitalChongqing 402760China Department of Medical Imaging Chongqing University Central HospitalChongqing 400014China

Foot reflexology is a non-invasive and safe complementary therapy that works by massaging the reflex zones of the feet and exerts systemic or whole-body regulation through meridian nerve *** therapy is commonly used in the treatment of various conditions such as autism and Parkinson's ***,there is limited reporting on the use of foot reflexology therapy for infants with sensorineural hearing loss(SNHL).Currently,there is no definitive conclusion on how foot reflexology therapy can influence *** editorial holds some guiding significance regarding this clinical *** aim is to present physiological evidence of how foot reflexology therapy can impact infants with SNHL,thereby enhancing clinician’s awareness of foot reflexology in treating infants with SNHL.

关键词： Foot reflexology Sensorineural Hearing Loss Future perspectives Limitations Neural conduction

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双测头直线度误差分离法影响因素分析

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组合机床与自动化加工技术 2016年第9期 54-57,60页

作者：杨川贵汪俊文田军胡秋米良中国工程物理研究院机械制造工艺研究所四川绵阳621000 国家机床产品质量监督检验中心(四川) 四川绵阳621000

进行双测头直线度测量法影响因素分析对测量系统关键参数优化和精度提升具有重要意义,因此文章首先根据双测头直线度测量原理搭建直线度在位测量系统;随后根据测量系统结构,建立考虑传感器的安装间距和调零误差、环境噪声、试件的安装... 详细信息

进行双测头直线度测量法影响因素分析对测量系统关键参数优化和精度提升具有重要意义,因此文章首先根据双测头直线度测量原理搭建直线度在位测量系统;随后根据测量系统结构,建立考虑传感器的安装间距和调零误差、环境噪声、试件的安装误差和复杂程度等因素的双测头直线度测量精度仿真分析系统,并全面地分析了上述因数对双测头直线度误差分离精度的影响规律;在此基础上,根据因素分析结论对测量系统传感器安装间距、低通滤波截止频率、试件安装误差等系统参数进行优化,以保证测量系统的测量精度,并对因素分析结论进行验证。

关键词：直线度双测头法误差分离最小二乘法

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我国土地行政问责制的构建和完善

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山东农业大学学报（社会科学版） 2011年第4期13卷 71-76,124页

作者：杨文君郭春华南京农业大学公共管理学院江苏南京210095

为了防止地方政府过度依赖土地财政,需要建立严格的土地行政问责制度。从2000年施行的《关于违反土地管理规定行为行政处分暂行办法》开始起步,到2011年已经10多年,我国的土地行政问责制度在不断构建和完善,在这期间进步和问题同在。"... 详细信息

为了防止地方政府过度依赖土地财政,需要建立严格的土地行政问责制度。从2000年施行的《关于违反土地管理规定行为行政处分暂行办法》开始起步,到2011年已经10多年,我国的土地行政问责制度在不断构建和完善,在这期间进步和问题同在。"土地行政问责"应该由谁来问,怎么问,问什么,问完之后怎么办?文章将就这些问题进行思考。

关键词：土地行政问责制地方政府土地违法

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一种新型超宽带微带折线环天线的研究与设计

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通信学报 2005年第10期26卷 65-68页

作者：吕文俊程崇虎朱洪波南京邮电大学无线通信与电磁兼容实验室江苏南京210003

提出了一种新型折线环形超宽带天线的设计,该天线结构类似一般的宽缝隙天线,不同的是采用了折线环结构进行设计。通过采用折线环结构不仅可以获得宽带工作特性,还能实现尺寸缩减。通过数值分析与实验研究,研究了天线的输入反射特性与辐... 详细信息

提出了一种新型折线环形超宽带天线的设计,该天线结构类似一般的宽缝隙天线,不同的是采用了折线环结构进行设计。通过采用折线环结构不仅可以获得宽带工作特性,还能实现尺寸缩减。通过数值分析与实验研究,研究了天线的输入反射特性与辐射特性。计算与实测结果表明,该超宽带天线具有超过4:1的工作带宽以及良好、稳定的全向辐射特性,具有很好的理论参考意义与实用价值。

关键词：超宽带微带天线宽缝隙天线折线环形

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