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新的理想气体焓、熵计算公式

石油工程建设 2024年第2期50卷 1-5,16页

作者：苑伟民国家管网集团北海液化天然气有限责任公司广西北海536000

ISO 20765-1:2005“Natural gas-Calculation of thermodynamic properties-Part 1:Gas phase properties for transmission and distribution applications”(GB/T 30491.1-2014《天然气热力学性质计算第1部分:输配气中的气相性质》)是以AGA8方程为基础计算管输天然气热力学性质,根据亥姆霍兹自由能及其关于温度和密度的导出函数来求解,推导严格。但是,标准中的计算公式仍然有些复杂,不容易理解,并且没有明确给出理想气体焓、熵的计算公式;经过研究,利用ISO 20765-1(GB/T 30491.1)中的数据,提出了6个计算理想气体焓、熵的新公式。新公式经过严格的数学推导,是带有双曲函数和指数函数的多项式,使用简单,精确度高,其相对误差平均值小于3×10^(-5)。

关键词：理想气体热力学性质预测焓熵新公式

Magnesium promotes vascularization and osseointegration in diabetic states

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International Journal of Oral Science 2024年第1期16卷 122-133页

作者： Linfeng Liu Feiyu Wang Wei Song Danting Zhang weimin Lin Qi Yin Qian Wang Hanwen Li Quan yuan Shiwen Zhang State Key Laboratory of Oral Diseases&National Center for Stomatology&National Clinical Research Center for Oral Diseases&West China Hospital of Stomatology Sichuan UniversityChengduChina State Key Laboratory of Oral Diseases&National Center for Stomatology&National Clinical Research Center for Oral Diseases&Department of Oral Implantology West China Hospital of StomatologySichuan UniversityChengduChina

Diabetes has long been considered a risk factor in implant therapy and impaired wound healing in soft and hard oral *** has been proved to promote bone healing under normal ***,we elucidate the mechanism by which Mg^(2+)promotes angiogenesis and osseointegration in diabetic *** generated a diabetic mice model and demonstrated thealveolar bone healing was compromised,with significantly decreased *** then developed Mg-coating implants with hydrothermal *** implants successfully improved the vascularization and osseointegration in diabetic ***,Mg^(2+)promoted the degradation of Kelch-like ECH-associated protein 1 (Keap1) and the nucleation of nuclear factor erythroid 2-related factor 2 (Nrf2) by up-regulating the expression of sestrin 2 (SESN2) in endothelial cells,thus reducing theelevated levels of oxidative stress in mitochondria and relieving endothelial cell dysfunction under ***,our data suggested that Mg^(2+)promoted angiogenesis and osseointegration in diabetic mice by regulating endothelial mitochondria metabolism.

关键词： healing diabetic impaired

Exploring the Dynamic X-ray Universe:Scientific Opportunities for the Einstein Probe Mission

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空间科学学报 2016年第2期36卷 117-138页

作者： yuan weimin OSBORNE Julian P ZHANG Chen WILLINGALE Richard Key Laboratory for Space Astronomy and Technology National Astronomical ObservatoriesChinese Academy of Sciences School of Astronomy and Space Science University of Chinese Academy of Sciences Department of Physics and Astronomy University of Leicester University

Time-domain astrophysics will enter a golden era towards the end of this decade with the advent of major facilities across the electromagnetic spectrum and in the multi-messenger realms of gravitational wave and *** the soft X-ray regime,the novel micro-pore lobster-eye optics provides a promising technology to realise,for the first time,focusing X-ray optics for wide-angle monitors to achieve a good combination of sensitivity and wide field of *** this context Einstein Probe,a soft X-ray all-sky monitor mission,was proposed and selected as a candidate mission of priority in the space science programme of the Chinese Academy of *** paper reviews the most important science developments and key questions in this field towards 2020 and beyond,and how to achieve them *** also introduces the Einstein Probe mission,including its key science goals and mission definition,as well as some of the key technological issues.

关键词： Time-domain astronomy High-energy astrophysics X-rays Transients Instruments

Whole-genome resequencing of Hu sheep identifies candidate genes associated with agronomic traits

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Journal of Genetics and Genomics 2024年第8期51卷 866-876页

作者： Liming Zhao Lvfeng yuan Fadi Li Xiaoxue Zhang Huibin Tian Zongwu Ma Deyin Zhang Yukun Zhang yuan Zhao Kai Huang Xiaolong Li Jiangbo Cheng Dan Xu Xiaobin Yang Kunchao Han Xiuxiu Weng weimin Wang State Key Laboratory of Herbage Improvement and Grassland Agro-Ecosystems Key Laboratory of Grassland Livestock Industry InnovationMinistry of Agriculture and Rural AffairsEngineering Research Center of Grassland IndustryMinistry of EducationCollege of Pastoral Agriculture Science and TechnologyLanzhou UniversityLanzhouGansu 730020China Lanzhou Veterinary Research Institute Chinese Academy of Agricultural SciencesLanzhouGansu 730046China College of Animal Science and Technology Gansu Agricultural UniversityLanzhouGansu 730070China

The phenotypic diversity resulting from artificial or natural selection of sheep has made a significant contribution to human *** sheep are a local sheep breed unique to China with high reproductive rates and rapid *** selection signatures have been widely used to investigate the genetic mechanisms underlying phenotypic variation in ***,we conduct whole-genome sequencing of 207 Hu sheep and compare them with the wild ancestors of domestic sheep(Asiatic mouflon)to investigate the genetic characteristics and selection signatures of Hu *** on six signatures of selection approaches,we detect genomic regions containing genes related to reproduction(BMPR1B,BMP2,PGFS,CYP19,CAMK4,GGT5,and GNAQ),vision(ALDH1A2,SAG,and PDE6B),nervous system(NAV1),and immune response(GPR35,SH2B2,PIK3R3,and HRAS).Association analysis with a population of 1299 Hu sheep reveals that those missense mutations in the GPR35(GPR35 g.952651 A>G;GPR35 g.952496 C>T)and NAV1(NAV1 g.84216190 C>T;NAV1 g.84227412 G>A)genes are significantly associated(P<0.05)with immune and growth traits in Hu sheep,*** research offers unique insights into the selection characteristics of Hu sheep and facilitates further genetic improvement and molecular investigations.

关键词： Hu sheep Whole-genome resequencing Selection signature GPR35 NAV1 Single nucleotide polymorphism

农业科技成果转化内卷化:困境表征与破解进路

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西北农林科技大学学报（社会科学版） 2022年第2期22卷 104-113页

作者：袁伟民赵泽阳中国农业大学人文与发展学院北京100193 河北农业大学经济管理学院河北保定071001

随着我国对农业科技创新与成果转化投入的不断加码,当前农业科技贡献率与成果转化率却陷入“双低”困局,并呈现出科技供给旨趣错位、体制机制陈旧固化、协同创新与集成转化水平不佳等“内卷化”特征。对此,在厘清农业科技成果转化内卷... 详细信息

随着我国对农业科技创新与成果转化投入的不断加码,当前农业科技贡献率与成果转化率却陷入“双低”困局,并呈现出科技供给旨趣错位、体制机制陈旧固化、协同创新与集成转化水平不佳等“内卷化”特征。对此,在厘清农业科技成果转化内卷的理论逻辑与发展脉络基础上,提出应在科研选题立项和科技人员考核评聘方面进行科研评价体制重构,在收益分配与风险共担及成果转化激励方面进行内在动力机制重构,在企业主体培育和农业科技成果转化服务平台建设方面进行成果转化主体重构,在农业科技创新链与产业链有效整合方面进行协同创新体系重构,为破解农业科技成果转化内卷化提供有价值的参考。

关键词：农业科技成果转化内卷化协同创新无发展的增长

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新时代社会治理智能化的冲突与调适

山西警察学院学报 2023年第2期31卷 25-30页

作者：原伟民山西警察学院治安系山西太原030401

目前社会治理呈现出动态性、复杂性特点,传统的、粗犷的治理方式已经不适应时代需求。智能化的生产生活方式顺应时代发展,创新社会治理方式,社会治理智能化趋势逐渐明晰。社会治理智能化存在技术逻辑下的内部冲突以及行为导向方面的外... 详细信息

目前社会治理呈现出动态性、复杂性特点,传统的、粗犷的治理方式已经不适应时代需求。智能化的生产生活方式顺应时代发展,创新社会治理方式,社会治理智能化趋势逐渐明晰。社会治理智能化存在技术逻辑下的内部冲突以及行为导向方面的外部冲突,社会治理智能化所存在的冲突必须从确立社会治理智能化理念、构建精准治理模式、社会多元主体协同治理三方面进行调适与回归,这样才能促使社会治理转型事半功倍。

关键词：社会治理智能化精准治理智能理念

Diagnosis of indirectly driven double shell targets with point-projection hard x-ray radiography

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Matter and Radiation at Extremes 2024年第2期9卷 50-62页

作者： Chao Tian Minghai Yu Lianqiang Shan Fengjuan Wu Bi Bi Qiangqiang Zhang Yuchi Wu Tiankui Zhang Feng Zhang Dongxiao Liu Weiwu Wang Zongqiang yuan Siqian Yang Lei Yang Zhigang Deng Jian Teng weimin Zhou Zongqing Zhao Yuqiu Gu Baohan Zhang Science and Technology on Plasma Physics Laboratory Laser Fusion Research CenterChina Academy of Engineering PhysicsMianyang 621900People’s Republic of China Joint Laboratory for Extreme Conditions Matter Properties Southwest University of Science and TechnologyMianyang 621010People’s Republic of China IFSA Collaborative Innovation Center Shanghai Jiao Tong UniversityShanghai 200240People’s Republic of China

We present an application of short-pulse laser-generated hard x rays for the diagnosis of indirectly driven double shell targets. Coneinserted double shell targets were imploded through an indirect drive approach on the upgraded SG-II laser facility. Then, based on thepoint-projection hard x-ray radiography technique, time-resolved radiography of the double shell targets, including that of their near-peakcompression, were obtained. The backlighter source was created by the interactions of a high-intensity short pulsed laser with a metalmicrowire target. Images of the target near peak compression were obtained with an Au microwire. In addition, radiation hydrodynamicsimulations were performed, and the target evolution obtained agrees well with the experimental results. Using the radiographic images, arealdensities of the targets were evaluated.

关键词： double projection point

Prevalence and risk evaluation of cardiovascular disease in the newly diagnosed prostate cancer population in China:A nationwide,multi-center,population-based cross-sectional study

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Chinese Medical Journal 2024年第11期137卷 1324-1331页

作者： Weiyu Zhang Huixin Liu Ming Liu Shi Ying Renbin yuan Hao Zeng Zhenting Zhang Sujun Han Zhannan Si Bin Hu Simeng Wen Pengcheng Xu weimin Yu Hui Chen Liang Wang Zhitao Lin Tao Dai Yunzhi Lin Tao Xu Department of Urology Peking University People’s HospitalBeijing 100044China Department of Clinical Epidemiology and Biostatistics Peking University People’s HospitalBeijing 100044China Department of Urology Beijing HospitalNational Center of GerontologyBeijing 100005China Institute of Geriatric Medicine Chinese Academy of Medical SciencesBeijing 100005China Department of Urology Wuhan Union HospitalHuazhong University of Science&TechnologyWuhanHubei 430022China Department of Urology The Third People’s Hospital of ChengduChengduSichuan 610014China Department of Urology West China Hospital of Sichuan UniversityChengduSichuan 610041China Department of Urologic Oncology Tianjin Medical University Cancer Institute&HospitalTianjin 300060China Department of Urology Cancer HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100021China National Cancer Center Beijing 100021China National Clinical Research Center for Cancer Beijing 100021China Department of Urology Liaoning Cancer HospitalShenyangLiaoning 110801China Department of Urology The Second Hospital of Tianjin Medical UniversityTianjin 300141China Tianjin Institute of Urology Tianjin Medical UniversityTianjin 300141China Department of Urology Lu’an Affiliated Hospital of Anhui Medical UniversityLu’anAnhui 237322China Department of Urology Renmin Hospital of Wuhan UniversityWuhanHubei 430060China Department of Urology Harbin Medical University Affiliated Cancer HospitalHarbinHeilongjiang 150081China Department of Urology The Second Hospital of Dalian Medical UniversityDalianLiaoning 116023China Department of Urology Surgery Fujian Cancer HospitalFuzhouFujian 350014China Department of Urology Surgery Hunan Cancer HospitalChangshaHunan 410031China Department of Urology Surgery The First Affiliated Hospital of Fujian Medical UniversityFuzhouFujian 350004China

Background:Cardiovascular disease(CVD)has emerged as the leading cause of death from prostate cancer(PCa)in recent decades,bringing a great disease burden *** with preexisting CVD have an increased risk for major adverse cardiovascular events when treated with androgen deprivation therapy(ADT).The present study aimed to explore the prevalence and risk evaluation of CVD among people with newly diagnosed PCa in ***:Clinical data of newly diagnosed PCa patients were retrospectively collected from 34 centers in China from 2010 to 2022 through convenience *** was defined as myocardial infarction,arrhythmia,heart failure,stroke,ischemic heart disease,and *** risk was estimated by calculating Framingham risk scores(FRS).Patients were accordingly divided into low-,medium-,and high-risk groups.χ2 or Fisher’s exact test was used for comparison of categorical ***:A total of 4253 patients were enrolled in the present study.A total of 27.0%(1147/4253)of patients had comorbid PCa and CVD,and 7.2%(307/4253)had two or more *** enrolled population was distributed in six regions of China,and approximately 71.0%(3019/4253)of patients lived in urban *** imaging and pathological evaluation,most PCa patients were diagnosed at an advanced stage,with 20.5%(871/4253)locally progressing and 20.5%(871/4253)showing *** of them initiated prostatectomy(46.6%,1983/4253)or regimens involving ADT therapy(45.7%,1944/4253)for prostate *** the present PCa cohort,43.1%(1832/4253)of patients had hypertension,and half of them had poorly controlled blood *** FRS stratification,as expected,a higher risk of CVD was related to aging and metabolic ***,we also found that patients with treatment involving ADT presented an originally higher risk of CVD than those without *** was in accordance with clinical practice,i.e.,aged patients or patients at advanced oncological stages were inclined to accept sys

关键词： Prostate cancer Castration Cardiovascular disease Prevalence Cardiovascular risk

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新警务机制改革背景下的公安调解出路探究

社会科学动态 2023年第10期 82-86页

作者：原伟民山西警察学院治安系山西太原030401

公安调解作为群众最信赖、最易得的纠纷解决方式,能迅速、有效化解社会矛盾,推动社会治理“由治达安”。2022年全国公安工作会议提出“部委抓总、省厅主责、市县主战、派出所主防”的大部门、大警种制度改革,其通过理念创新、技术创新... 详细信息

公安调解作为群众最信赖、最易得的纠纷解决方式,能迅速、有效化解社会矛盾,推动社会治理“由治达安”。2022年全国公安工作会议提出“部委抓总、省厅主责、市县主战、派出所主防”的大部门、大警种制度改革,其通过理念创新、技术创新、模式创新、体制创新,将警力资源配置向事前预防倾斜,为公安调解注入了新活力。但当前公安调解工作还存在调解力量不足、公安民警缺乏调解动力、公安调解缺乏专业性等问题。应当树立调控结合的工作理念,促进社会治安防控与调解矛盾纠纷相融合;完善公安调解的制度,最大程度发挥公安调解的优势;优化公安调解的工作结构,运转好公安调解的工作机制。

关键词：警务机制改革公安调解化解风险由治达安