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A new species of Triplophysa Rendahl （Cypriniformes, Nemacheilidae） from sichuan Province, China

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Zoological Research 2015年第5期36卷 299-304页

作者： si-li yan Zhi-Yu SUN yan-Shu GUO College of life Sciences China West Normal University Nanchong Sichuan 637009 China sichuan Academy of Forestry Chengdu Sichuan 610081 China

Triplophysa yajiangensis sp. nov. is described from the upper and middle reaches of the Yalong River, yangtze Basin, Ganzi Prefecture, sichuan Province China. This new species can be distinguished from other congeneric species by the following characters： body surface smooth and scaleless; lateral line complete; caudal peduncle compressed and tapered slightly; lower jaw shovel-shaped; head shorter than caudal peduncle; dorsal-fin origin anterior to pelvic-fin origin and closer to tip of snout than to caudal-fin base, last unbranched ray hard; pelvic-fin reaches or exceeds anus; posterior chamber of gas bladder absent; intestine spiral type with 3-5 winding coils.

关键词： Cypriniformes Nemacheilidae Triplophysayajiangensis New species sichuan Province China

MiR-142-3p Regulates ILC1s by Targeting HMGB1 via the NF-κB Pathway in a Mouse Model of Early Pregnancy Loss

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Current Medical Science 2024年第1期44卷 195-211页

作者： Xiang-li PANG Jie li Jing WANG si-si yan Jing yanG Department of Obstetrics and Gynecology Renmin Hospital of Wuhan UniversityWuhan 430060China Reproductive Medical Center Renmin Hospital of Wuhan UniversityWuhan 430060China Clinic Research Center for Assisted Reproductive Technology and Embryonic Development in Hubei Province Wuhan 430060China

Objective Innate lymphoid cells(ILCs)are a class of newly discovered *** 1 ILCs(ILC1s)are identified in the decidua of humans and *** mobility group box 1(HMGB1)is predicted to be one of the target genes of miR-142-3p,which is closely related to pregnancy-related ***,miR-142-3p and HMGB1 are involved in regulating the NF-κB signaling *** study aimed to examine the regulatory effect of miR-142-3p on ILC1s and the underlying mechanism involving HMGB1 and the NF-κB signaling *** Mouse models of normal pregnancy and abortion were constructed,and the alterations of ILC1s,miR-142-3p,ILC1 transcription factor(T-bet),and pro-inflammatory cytokines of ILC1s(TNF-α,IFN-γand IL-2)were detected in mice from different *** targeting regulation of HMGB1 by miR-142-3p in ILC1s,and the expression of HMGB1 in normal pregnant mice and abortive mice were *** addition,the regulatory effects of miR-142-3p and HMGB1 on ILC1s were detected in vitro by CCK-8,Annexin-V/PI,EliSA,and RT-PCR,***,changes of the NF-κB signaling pathway in ILC1s were examined in the different *** the in vivo studies,miR-142-3p-Agomir was injected in the uterus of abortive mice to evaluate the abortion rate and alterations of ILC1s at the maternal-fetal interface,and further detect the expression of HMGB1,pro-inflammatory cytokines,and the NF-κB signaling *** The number of ILC1s was significantly increased,the level of HMGB1 was significantly upregulated,and that of miR-142-3p was considerably downregulated in the abortive mice as compared with the normal pregnant mice(all Psignaling pathway(Psignificantly downregulated and the activation of the NF-κB signaling pathway was inhibited in the miR-142-3p Agomir group(all Psion

关键词： maternal-fetal interface group 1 innate lymphoid cells(ILCis) high mobility group box 1(HMGB1) miR-142-3p abortion

Superatom-assembled boranes,carboranes,and low-dimensional boron nanomaterials based on aromatic icosahedral B_(12)and C_(2)B_(10)

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Nano Research 2024年第7期17卷 6734-6740页

作者： Qiao-Qiao yan yan-Fang Wei Qiang Chen Yue-Wen Mu si-Dian li Institute of Molecular Science Shanxi UniversityTaiyuan 030006China

Using the experimentally known aromatic icosahedral superatoms I_(h)B_(12)H_(12)2−and D_(5d)1,12-C_(2)B_(10)H_(12)as building blocks and based on extensive density functional theory calculations,we predict herein a series of core–shell superpolyhedral boranes and carboranes in a bottom-up approach,including the high-symmetry Th B_(12)@B_(152)H_(72)2−(2),C2h C_(2)B_(10)@B_(152)H_(72)(3),D_(3d)B_(12)@B_(144)H_(66)(4),I_(h)B_(12)@C_(24)B_(12)0H_(72)2−(6),and D_(5d)C_(2)B_(10)@C_(24)B_(12)0H_(72)(7).More interestingly,the superatom-assembled linear D2h B_(36)H_(32)^(2−)(8),close-packed planar D_(3d)B_(84)H_(60)^(2−)(10),and nearly close-packed core−shell D_(3d)B_(12)@B144H_(6)6(4)can be extended periodically to form the one-dimensional(1D)α-rhombohedral borane nanowire B_(12)H_(10)(Pmmm)(9),two-dimensional(2D)α-rhombohedral monolayer borophane B_(12)H_(6)(P m1)(11),and the experimentally known three-dimensional(3D)α-rhombohedral boron(R m)(12)which can be viewed as an assembly of the monolayer B_(12)H_(6)(11)staggered in vertical direction,setting up a bottom-up strategy to form low-dimensional boron-based nanomaterials from their borane“seeds”via partial or complete *** bonding analyses indicate that the high stability of these nanostructures originates from the spherical aromaticity of their icosahedral B_(12)or C_(2)B_(10)structural units which possess the universal skeleton electronic configuration of 1S21P61D101F8 following the Wade’s n+1 *** infrared(IR)and Raman spectra of the most-concerned neutral B_(12)@B144H_(6)6(4)and C_(2)B_(10)@C_(24)B_(12)0H_(72)(7)are computationally simulated to facilitate their experimental characterizations.

关键词： superatom-assembling bottom-up approach density functional theory superpolyhedral boranes superpolyhedral carboranes borophanes

DDL-2与FD-125测氡仪对比观测研究——以新疆水磨沟15泉为例

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内陆地震 2024年第3期38卷 258-264页

作者：贾永斌黄建明汪成国李新勇李思妍王斌新疆维吾尔自治区地震局新疆乌鲁木齐830011

新疆地震局地球物理观测中心流体实验室目前测氡采用的仪器为FD-125,购置时间为1979年,由于长时间使用致该仪器老化严重,且没有备用仪器,无厂家生产更换。如果仪器出现故障未及时修理,缺少备用观测仪器,将会造成数据断测,影响观测数据... 详细信息

新疆地震局地球物理观测中心流体实验室目前测氡采用的仪器为FD-125,购置时间为1979年,由于长时间使用致该仪器老化严重,且没有备用仪器,无厂家生产更换。如果仪器出现故障未及时修理,缺少备用观测仪器,将会造成数据断测,影响观测数据的整体科学质量。因此,本文中以新疆水磨沟15泉水样为测量对象,引入DDL-2测氡仪在相同环境条件下与FD-125测氡仪进行检测并开展对比实验研究。研究表明:DDL-2测氡仪性能稳定,测值波动区间小,能满足前兆观测规范要求,能够正确反映地下水中氡含量的变化,研究认为DDL-2测氡仪有潜力代替FD-125测氡仪作为水氡日常测量仪器。

关键词：测氡仪前兆观测水磨沟 15泉

利用GPS资料分析新疆两次6级地震震前位移微动态特征

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内陆地震 2024年第3期38卷 231-241页

作者：李思妍李桂荣王晓飞阿卜杜塔伊尔·亚森新疆维吾尔自治区地震局新疆乌鲁木齐830011

以新疆地区GPS连续观测站的站点坐标三分量时间序列为数据源,通过希尔伯特黄变换(简称HHT)特定滤波频段捕捉新疆两次6级地震震前中短期地表位移微动态异常变化信息。以2017年8月9日精河MS6.6地震为例,获取HHT滤波频段3.8580×10^(-7)~6.... 详细信息

以新疆地区GPS连续观测站的站点坐标三分量时间序列为数据源,通过希尔伯特黄变换(简称HHT)特定滤波频段捕捉新疆两次6级地震震前中短期地表位移微动态异常变化信息。以2017年8月9日精河MS6.6地震为例,获取HHT滤波频段3.8580×10^(-7)~6.4300×10^(-8)Hz(周期30~180天),能够在发震前40天提取到短期前兆异常及孕震信息。使用该频段对2016年11月25日新疆阿克陶MS6.7地震分析,震前55天左右,震中附近两两相关站点的振幅、幅值相干函数值和相关系数出现明显高于背景水平的位移微动态变化。两次地震事件表明,能够从一年时间尺度内的GPS连续观测资料中提取到有价值的震前位移微动态特征及地震孕育信息,为地震趋势研判提供参考依据。

关键词： GPS 希尔伯特黄变换位移微动态时间序列

霍尔果斯—玛纳斯—吐谷鲁断裂现今断层运动特征

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内陆地震 2024年第1期38卷 54-62页

作者：苏力坦·玉散姚远李思妍艾力夏提·玉山赵磊李瑞李桂荣新疆维吾尔自治区地震局新疆乌鲁木齐830011

霍尔果斯—玛纳斯—吐谷鲁断裂在天山新生代构造演化中起到了重要作用,并控制着北天山山前地区的地震活动,了解霍尔果斯—玛纳斯—吐谷鲁断裂带不同段落的活动特性对乌鲁木齐山前凹陷地区的运动特征有着重要意义。文中利用研究区域内的... 详细信息

霍尔果斯—玛纳斯—吐谷鲁断裂在天山新生代构造演化中起到了重要作用,并控制着北天山山前地区的地震活动,了解霍尔果斯—玛纳斯—吐谷鲁断裂带不同段落的活动特性对乌鲁木齐山前凹陷地区的运动特征有着重要意义。文中利用研究区域内的GPS站点,获取了该区域的现今GPS速度场、基线长度变化、应变等结果,再通过GPS速度场的剖面投影法分析,结合跨断层水准资料进行分析研究,结果表明:(1)通过陆态网络站基线变化趋势可以看出天山处在挤压状态。大地四边形网基线变化量显示:吐谷鲁背斜的大丰测区从2017—2021年处于挤压状态,在2021—2023年出现拉张的趋势,这与该场地跨断层水准测量的结果趋势一致;红山嘴测区断层一直为挤压状态,这与区域跨断层水准场地的测量结果一样。(2)跨霍尔果斯—玛纳斯—吐谷鲁断裂的GPS速度剖面显示,GPS站点南北向速率从西向东变小,霍尔果斯—玛纳斯—吐谷鲁断裂的滑动速率约1 mm/a,这些断层为逆冲特征,走滑分量无明显的变化。

关键词：霍尔果斯—玛纳斯—吐谷鲁断裂 GPS 时间序列应变

Predict the evolution of mechanical property of Al-li alloys in a marine environment

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Defence Technology（防务技术） 2024年第1期31卷 557-566页

作者： Wei li lin Xiang Guang Wu Hongli si Jinyan Chen Yiming Jin yan Su Jianquan Tao Chunyang Huang State Key Laboratory of Explosion Science and Technology Beijing Institute of TechnologyBeijing100036China Chongqing Innovation Center Beijing Institute of TechnologyChongqing400044China First Research Institute of the Ministry of Public Security for PR China Beijing100036China Southwest Technology and Engineering Research Institute Chongqing400039China

The ocean is one of the essential fields of national defense in the future,and more and more attention is paid to the lightweight research of Marine equipment and *** study it is to develop a Machine learning(ML)-based prediction method to study the evolution of the mechanical properties of Al-li alloys in the marine *** obtained the mechanical properties of Al-li alloy samples under uniaxial tensile deformation at different exposure times through Marine exposure *** obtained the strain evolution by digital image correlation(DIC).The strain field images are voxelized using 2D-Convolutional Neural Networks(CNN)autoencoders as input data for Long Short-Term Memory(LSTM)neural ***,the output data of LSTM neural networks combined with corrosion features were input into the Back Propagation(BP)neural network to predict the mechanical properties of Al-li *** main conclusions are as follows:*** variation law of mechanical properties of2297-T8 in the Marine atmosphere is *** the increase in outdoor exposure test time,the tensile elastic model of 2297-T8 changes slowly,within 10%,and the tensile yield stress changes significantly,with a maximum attenuation of 23.6%.*** prediction model can predict the strain evolution and mechanical response simultaneously with an error of less than 5%.*** study shows that a CNN/LSTM system based on machine learning can be built to capture the corrosion characteristics of Marine exposure *** results show that the relationship between corrosion characteristics and mechanical response can be predicted without considering the microstructure evolution of metal materials.

关键词： Marine environment Al-li alloy Machine learning Corrosion

Competitive intermetallics formation in Pd-Zn-Cd system via seeded growth from ultra-thin Pd nanosheets for electrocatalytic ethanol oxidation reaction

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Nano Research 2024年第9期17卷 8552-8559页

作者： Donghao Zhang lianxi si Qianqian Ren Xintong yan Shi Hu Department of Chemistry School of ScienceTianjin Key Laboratory of Molecular Optoelectronic ScienceTianjin UniversityTianjin 300072China

Pd-based catalysts exhibit higher catalytic activity and durability in many electrochemical ***,the electrochemical performance can be further enhanced by fine-tune of the alloy *** binary alloys have been fully studied,the multicomponent alloys are far beyond understanding,which leaves cocktail effect a compromised explanation for the high-entropy *** Pd nanosheet-seeded growth was used to synthesize a Pd-Zn-Cd ternary alloy by accurately controlling the Pd-Zn-Cd molar ratio through adjusting the amount of introduced Cd *** analysis of the crystal phase structure of PdCdZnx and PdZn_(x)Cd_(1-x),the competitive relationship of Zn and Cd in the alloying process with Pd was unveiled:Pd1Cd1 intermetallics(IMC)is thermodynamically favored over Pd_(1)Zn_(1)IMC in the ternary ***,the increased structure stability of PdCd over PdZn does not bring about increased durability in the catalytic ethanol oxidation *** morphology selection of Pd seeds is also crucial for the study,as Pd cubes,Pd tetrahedrons,and Pd octahedrons do not form PdZn in the same *** successful alloying through the seeded growth depends on the maximum diffusion depth of foreign atoms into the seed.

关键词： PdZn alloy seed growth method ethanol oxidation reaction composition control ternary alloying

Retinal displacement after surgery for idiopathic macular hole

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International Journal of Ophthalmology(English edition) 2024年第8期17卷 1545-1556页

作者： He-Cong Qin Fu-Qiang li si-yan Jin Jin-Song Zhao Department of Ophthalmology the Second Hospital of Jilin UniversityChangchun 130000Jilin ProvinceChina

AIM:To review and summarize the mechanism hypothesis,influencing factors and possible consequences of macular retinal displacement after idiopathic macular hole(IMH)***:PubMed and Web of Science database was searched for studies published before April 2023 on“Retinal displacement”,“Idiopathic macular holes”,and“Macular displacement”.RESULTS:Recently,more academics have begun to focus on retinal displacement following idiopathic macular *** found that internal limiting membrane(ILM)peeling was the main cause of inducing postoperative position shift in the macular ***,several studies have revealed that the macular hole itself,as well as ILM peeling method,will have an impact on the *** addition,this phenomenon is related to postoperative changes in macular retinal thickness,cone outer segment tips line recovery,the occurrence of dissociated optic nerve fiber layer(DONFL)and the degree of ***:As a subclinical phenomenon,the clinical significance of postoperative macular displacement cannot be underestimated as it may affect the recovery of anatomy and function.

关键词： idiopathic macular holes internal limiting membrane peeling retina displacement