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Numerical solutions of rotational normal modes of a triaxial two-layered anelastic Earth

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Geodesy and Geodynamics 2019年第2期10卷 118-129页

作者： Wenbin Shen Zhuo Yang zhiliang guo Wenying Zhang Department of Geophysics School of Geodesy and Geomatics/Key Laboratory of Geospace Environment and Geodesy of Ministry of EducationWuhan University State Key Laboratory of Information Engineering in Surveying Mapping and Remote SensingWuhan University

The Earth's rotational normal modes depend on Earth model used, including the layer structures,principal inertia moments of different layers and the compliances. This study focuses on providing numerical solution of the rotational normal modes of a triaxial two-layered anelastic Earth model without external forces but with considering the complex forms of compliances and the electromagnetic coupling between the core and mantle. Based on the present knowledge of the Chandler wobble(CW) and Free Core Nutation(FCN), we provide a set of complete compliances which could be used for reference in further investigations. There are eight rotational normal mode solutions, four of which might exist in nature. However, in reality only two of these four solutions correspond to the present motion status of the prograde CW and the retrograde FCN. On one hand, our numerical calculations show that the periods and quality factors(Qs) of CW and FCN are respectively 434.90 and 429.86 mean solar days(d) and 76.56 and 23988.47 under frequency-dependent assumption, and the triaxiality prolongs CW about 0.01 d and has hardly effect on FCN. On the other hand, we analyze the sensibility of compliances and electromagnetic coupling parameter on the periods and Qs of CW and FCN and find the sensitive parameters with respect to them.

关键词： Earth rotation Triaxial two-layered anelastic Earth model Compliances Rotational normal modes Numerical solution

Insight into coupled Ni-Co dual-metal atom catalysts for efficient synergistic electrochemical CO_(2)reduction

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Journal of Energy Chemistry 2023年第12期87卷 509-517,I0013页

作者： Qingchun Zhang Di Liu Yaping Zhang zhiliang guo Minpeng Chen Yuyun Chen Bo Jin Yingze Song Hui Pan State Key Laboratory of Environment-Friendly Energy Materials School of Materials and ChemistryTianfu Institute of Research and InnovationSouthwest University of Science and TechnologyMianyang 621010SichuanChina Institute of Applied Physics and Materials Engineering University of MacaoMacao 999078China School of Chemistry and Chemical Engineering Southeast UniversityNanjing 211189JiangsuChina

The development of highly active,selective,and stable electrocatalysts can facilitate the effective implementation of electrocatalytic CO_(2)conversion into fuels or chemicals for mitigating the energy crisis and climate ***,it is necessary to achieve the goal through reasonable material design based on the actuality of the operational active site at the molecular *** by the stimulating synergistic effect of coupled heteronuclear metal atoms,a novel Ni-Co atomic pairs configuration(denoted as NiN_(3)?CoN_(3)-NC)active site was theoretically screened out for improving electrochemical CO_(2)reduction reaction(CO_(2)RR).The structure of NiN_(3)?CoN_(3)-NC was finely regulated by adjusting Zn content in the precursors Zn/Co/Ni-zeolite imidazolate frameworks(Zn/Co/Ni-ZIFs)and pyrolysis *** structural features of NiN_(3)?CoN_(3)-NC were systematically confirmed by aberration-corrected HAADF-STEM coupled with 3D atom-overlapping Gaussian-function fitting mapping,XAFS,and *** results of theoretical calculations reveal that the synergistic effect of Ni-Co atomic pairs can effectively promote the*COOH intermediate formation and thus the overall CO_(2)RR kinetic was improved,and also restrained the competitive hydrogen evolution *** to the attributes of Ni-Co atomic pairs configuration,the developed NiN_(3)?CoN_(3)-NC with superior catalytic activity,selectivity,and durability,with a high turnover frequency of 2265 h^(-1)at-1.1 V(***)and maximum Faradaic efficiency of 97.7%for CO *** work demonstrates the great potential of DACs as highly efficient catalysts for CO_(2)RR,provides a useful strategy to design heteronuclear DACs,exploits the synergistic effect of multiple metal sites to facilitate complex CO_(2)RR catalytic reactions,and inspires more efforts to develop the potential of DACs in various fields.

关键词： Coupled dual-metal atom catalysts CO_(2)reduction reaction Electrocatalysts Density functional theory

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北方方言“虹”“鹐”“擤”的白读

方言 2023年第3期45卷 320-329页

作者：郭志良上海师范大学上海

北方的官话方言和晋语中,见晓组开口二等字“虹”“鹐”“擤”的声母,除与同韵摄三等字同音外,还存在与三等对立的现象。“虹”“鹐”“擤”三字有读同精组细音或洪音的白读,分布范围广,涉及胶辽官话、冀鲁官话、中原官话和晋语。这种... 详细信息

北方的官话方言和晋语中,见晓组开口二等字“虹”“鹐”“擤”的声母,除与同韵摄三等字同音外,还存在与三等对立的现象。“虹”“鹐”“擤”三字有读同精组细音或洪音的白读,分布范围广,涉及胶辽官话、冀鲁官话、中原官话和晋语。这种特殊读音是韵图时代介音对立在现代方言中的残存。

关键词：北方官话方言晋语见系开口二等 “虹”“鹐”“擤” 白读韵图介音

Interaction between en- dogenous nitric oxide and carbon monoxide in the pathogenesis of hypoxic pulmonary hypertension

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Chinese Science Bulletin 2003年第1期48卷 86-90页

作者： SHI Yun, DU Junbao, guo zhiliang, ZENG Chaomei & TANG Chaoshu Department of Pediatrics, the First Hospital, Peking University, Beijing 100034, China Correspondence should be addressed to Du Junbao (e-mail: junbaodu@ ***) Department of Pediatrics the First Hospital Peking University Beijing China

The aim of the study was to investigate the in-teraction between nitric oxygenase (NOS)/ nitric oxide (NO) and heme oxygenase (HO)/ carbon monoxide (CO) system in the pathogenesis of hypoxic pulmonary hypertension. On a rat model of hypoxic pulmonary hypertension, the pulmo-nary artery pressure was measured, and NO formation and expression of NOS in pulmonary tissues were examined after treatment with ZnPP-IX, an HO-1 inhibitor. The pulmonary artery pressure, CO formation and expression of HO-1 in pulmonary tissues were examined after treatment with L-NAME, a NOS inhibitor. We found that pulmonary hy-pertension developed after 2-week hypoxia, while the con-centration of NO in the pulmonary tissue homogenates and the expression of NOS in intrapulmonary artery endothelial cells decreased markedly. ZnPP-IX worsened pulmonary hypertension of hypoxic rats. However, it increased endoge-nous production of NO and the expression of NOS obviously. The concentration of CO in the pulmonary tissue homoge-nates and the expression of HO-1 in intrapulmonary artery smooth muscle cells increased markedly with hypoxic pul-monary hypertension. L-NAME worsened pulmonary hy-pertension of hypoxic rats, but inhibited CO formation and HO-1 expression (P < 0.01). The results of this study sug-gested that endogenous NOS/NO and HO/CO systems might interact with each other and therefore play an important regulating role in hypoxic pulmonary hypertension.

关键词：低氧肺源性高血压病理发生内源性NO CO 一氧化碳一氧化氮

悬停状态下倾转旋翼机向下载荷被动减缓措施研究

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空气动力学学报 2018年第3期36卷 529-534页

作者：陈皓陆志良郭同庆南京航空航天大学江苏南京210016

基于SA一方程紊流模型的DES方法,发展了一种翼型在-90°来流迎角下非定常大分离流动的数值模拟方法,系统地研究了后缘襟翼、克鲁格襟翼、前缘下垂以及扰流板四种被动控制技术在悬停状态下倾转旋翼机向下载荷减缓中的应用,并分析了各影... 详细信息

基于SA一方程紊流模型的DES方法,发展了一种翼型在-90°来流迎角下非定常大分离流动的数值模拟方法,系统地研究了后缘襟翼、克鲁格襟翼、前缘下垂以及扰流板四种被动控制技术在悬停状态下倾转旋翼机向下载荷减缓中的应用,并分析了各影响参数对阻力系数的影响。计算结果表明:当后缘襟翼偏角60°时,垂直阻力最小;克鲁格襟翼偏角85°时,阻力系数最小;前缘下垂偏角45°时,阻力系数最小;当扰流板高度h/c=0.05时,阻力系数最小。最优组合构型为后缘襟翼偏角60°,克鲁格襟翼偏角85°,其向下载荷相对于原始翼型减小了55.4%。

关键词：倾转旋翼机向下载荷被动控制技术分离涡模拟

内源性一氧化氮对低氧大鼠肺动脉血红素氧合酶/一氧化碳体系调节的研究

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中华儿科杂志 2000年第12期38卷 742-745页

作者：郭志良杜军保北京大学第一医院儿科 100034

目的　研究内源性一氧化氮对低氧大鼠肺动脉血红素氧合酶 /一氧化碳体系的调节作用 ,以探讨一氧化氮对低氧性肺血管结构重建调节作用的机理。方法　将 2 1只大鼠随机分为 3组 :常氧组、低氧组和低氧 +L NAME组 (经NO合酶抑制剂Nω 硝基 ... 详细信息

目的　研究内源性一氧化氮对低氧大鼠肺动脉血红素氧合酶 /一氧化碳体系的调节作用 ,以探讨一氧化氮对低氧性肺血管结构重建调节作用的机理。方法　将 2 1只大鼠随机分为 3组 :常氧组、低氧组和低氧 +L NAME组 (经NO合酶抑制剂Nω 硝基 L 精氨酸甲酯处理的低氧组 ) ,每组 7只。用免疫组织化学技术对肺动脉平滑肌细胞中血红素氧合酶 1的含量及定位进行分析 ,同时应用分光光度计检测 3组大鼠血浆和肺组织匀浆中一氧化碳含量。结果　低氧组大鼠肺动脉平滑肌细胞中血红素氧合酶 1表达与常氧组相比明显增强 (P <0 .0 1) ,而低氧 +L NAME组大鼠肺动脉平滑肌细胞中血红素氧合酶 1的表达又明显低于低氧组 (P <0 .0 1)。低氧组大鼠血浆和肺组织匀浆中一氧化碳含量明显高于常氧组 (P <0 .0 1) ,而低氧 +L NAME组大鼠血浆和肺组织匀浆中一氧化碳含量又明显低于低氧组 (P <0 .0 1)。结论　研究提示 ,内源性一氧化氮可通过内源性一氧化碳途径对低氧时肺循环进行调节。

关键词：一氧化氮低氧肺动脉血红素氨化酶(脱环) 一氧化碳

703例次移植肾穿刺活组织检查的病理诊断分析

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器官移植 2024年第5期15卷 799-804页

作者：涂宇豪郭志良萨如拉朱兰郭晖陈刚华中科技大学同济医学院附属同济医院器官移植研究所教育部器官移植重点实验室国家卫生健康委员会器官移植重点实验室中国医学科学院器官移植重点实验室武汉430030

目的总结移植肾穿刺活组织检查(活检)的并发症发生情况,分析穿刺指征及病理诊断类型。方法回顾性分析2017年1月1日至2022年12月31日644例肾移植受者的703例次超声引导下移植肾穿刺活检的资料,分析穿刺合格率、并发症、指征性活检的穿刺... 详细信息

目的总结移植肾穿刺活组织检查(活检)的并发症发生情况,分析穿刺指征及病理诊断类型。方法回顾性分析2017年1月1日至2022年12月31日644例肾移植受者的703例次超声引导下移植肾穿刺活检的资料,分析穿刺合格率、并发症、指征性活检的穿刺指征和病理诊断类型。分析监视性活检的应用和病理诊断。结果肾组织穿刺活检合格率为99.9%,穿刺出血并发症包括移植肾周血肿和血尿各1例次。血清肌酐升高(76.8%)和蛋白尿(13.8%)为主要穿刺指征,48例次(6.8%)为评估治疗效果的监视性活检。病理诊断排斥反应共399例次,其中细胞性排斥反应293例次、抗体性排斥反应60例次、混合性排斥反应46例次;原发病复发或新发肾病195例次,主要为IgA肾病144例次和局灶性节段性肾小球硬化42例次;感染相关肾病共57例次,其中BK病毒相关性肾病(BKVAN)56例次;钙调磷酸酶抑制剂(CNI)肾毒性损伤31例次,包括急性CNI肾毒性损伤15例次和慢性CNI肾毒性损伤16例次;其他诊断45例次。结论移植肾穿刺活检的成功率高及安全性好,现阶段细胞性排斥反应仍然是移植肾指征性活检的最主要病理诊断。

关键词：肾移植穿刺活组织检查排斥反应血清肌酐蛋白尿排斥反应感染

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小鼠肾移植尿路重建术式总结与应用体会

中华医学杂志 2022年第12期102卷 884-888页

作者：赵大强郭志良潘天惠陈刚华中科技大学同济医学院附属同济医院器官移植研究所武汉430030

本文总结小鼠肾移植尿路重建方法和技术要点。膀胱瓣和输尿管植入术均是小鼠肾移植中重建尿路的可行术式。膀胱瓣术式主要并发症为术后膀胱瓣及输尿管远端缺血坏死。其发生率受供体小鼠品系和手术技术影响。输尿管植入术式主要并发症为... 详细信息

本文总结小鼠肾移植尿路重建方法和技术要点。膀胱瓣和输尿管植入术均是小鼠肾移植中重建尿路的可行术式。膀胱瓣术式主要并发症为术后膀胱瓣及输尿管远端缺血坏死。其发生率受供体小鼠品系和手术技术影响。输尿管植入术式主要并发症为术后尿漏。其发生率受受体小鼠性别和手术技术影响。膀胱瓣术式重点是术中判断膀胱瓣血供并合理修剪缝合膀胱瓣。输尿管植入术式重点是妥善修剪和固定输尿管。输尿管植入术式比膀胱瓣术式快捷。其早期发生的尿路并发症更容易通过二次手术成功修复,但远期尿潴留发生风险高于膀胱瓣术式。手术干预的及时性是成功修复早期尿路并发症的关键因素。

关键词：肾移植尿路并发症动物模型小鼠

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企业改革管理与思想政治工作的关系

机械管理开发 2004年第5期19卷 122-122,124页

作者：郭志亮太原矿山机器集团有限公司山西太原030009

企业思想政治工作是一个常讲常新的话题。结合国有企业加强管理与思想政治工作的关系,从企业实际出发,以思想政治工作的角度提出做好企业管理工作的新思路和可供借鉴的办法。

关键词：国有企业思想政治工作企业改革