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“一带一路”沿线军事技术转移网络格局演化与驱动因素——以军事武器装备为例

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人文地理 2024年第4期39卷 75-84页

作者：郭卫东杜德斌华东师范大学全球创新与发展研究院上海200062 华东师范大学世界地理与地缘战略研究中心上海200062 华东师范大学地理科学学院上海200241

利用武器转让和世界银行数据库对“一带一路”沿线军事技术转移网络格局和驱动因素进行研究,结果发现:“一带一路”沿线军事技术转移规模先升后降,印度成为最大的军事技术转入国,中国军事技术优势区逐步扩大并趋于连片生长;军事技术转... 详细信息

利用武器转让和世界银行数据库对“一带一路”沿线军事技术转移网络格局和驱动因素进行研究,结果发现:“一带一路”沿线军事技术转移规模先升后降,印度成为最大的军事技术转入国,中国军事技术优势区逐步扩大并趋于连片生长;军事技术转移网络呈两极分化特征和核心—边缘结构,中国成为改变网络结构的关键力量;俄罗斯是军事技术转移最大流网络的绝对主导,但影响力和控制力呈下降趋势;美国对域内军事技术转移规模迅速增长,军事影响力日益向中国周边渗透,空间布局符合边缘地带范围并对中国形成合围态势;地理距离、经贸关系、地缘关系、科技创新能力、国家发展水平、资本投入、资源禀赋和政治稳定性对转出国影响显著,而对转入国影响不明显。

关键词：军事技术转移网络驱动因素 “一带一路”

Quantum Scars in Microwave Dielec trie Photonic Graphene Billiards

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Chinese Physics Letters 2020年第1期37卷 10-13页

作者： Xiao Wang guo-dong wei Department of Computer Science and Technology Taiyuan University of Science and TechnologyTaiyuan 030024 School of Applied Science Taiyuan University of Science and TechnologyTaiyuan 030024

Brillouin *** closed graphene system has proven to be the ideal model to investigate relativistic quantum chaos *** electromagnetic material photonic graphene(PG)and electronic graphene not only have the same structural symmetry,but also have the similar band ***,we consider a stadium shaped resonant cavity filled with PG to demonstrate the relativistic quantum chaos phenomenon by numerical *** is interesting that the relativistic quantum scars not only are identified in the PG cavities,but also appear and disappear *** wave vector difference between repetitive scars on the same orbit is analyzed and confirmed to follow the quantization *** exploration will not only demonstrate a visual simulation of relativistic quantum scars but also propose a physical system for observing valley-dependent relativistic quantum scars,which is helpful for further understanding of quantum chaos.

关键词： structure. relativistic quantum

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不同产地甘草中核苷和碱基类成分分析与评价

天然产物研究与开发 2024年第1期36卷 78-85页

作者：谢明霞朱正清陈思杜可王芷郭东卫王汉卿湖南中医药大学长沙410208 湖南省脑科医院(湖南省第二人民医院) 长沙410021 宁夏医科大学银川750004

为揭示不同产地甘草物质基础不同,本研究采用UPLC-TQ/MS测定153批不同产地甘草样品中12种核苷、碱基类成分含量,并利用主成分分析(PCA)和偏最小二乘判别分析(PLS-DA)进行不同产地质量特征分析。研究结果显示,不同产地总核苷、碱基类成... 详细信息

为揭示不同产地甘草物质基础不同,本研究采用UPLC-TQ/MS测定153批不同产地甘草样品中12种核苷、碱基类成分含量,并利用主成分分析(PCA)和偏最小二乘判别分析(PLS-DA)进行不同产地质量特征分析。研究结果显示,不同产地总核苷、碱基类成分含量宁夏>甘肃>内蒙古>新疆,产地之间存在显著差异(P<0.05)。甘草核苷类成分以胞苷和鸟苷含量较高,二者占总核苷和碱基含量的26.2%~47.8%;碱基类成分以腺嘌呤和鸟嘌呤较高,二者占总核苷和碱基含量的19.3%~38.7%。基于测定的12种核苷、碱基类成分,PLS-DA判别分析可以将不同产地的甘草分为两组,一组为宁夏和内蒙古产甘草,另外一组为甘肃和新疆产甘草,主要差异成分为鸟嘌呤、腺嘌呤、尿苷、胞苷和鸟苷。进一步采用PLS-DA分别分析两个组内不同产地的甘草质量特征显示,甘肃和新疆产甘草可以明确区分,宁夏和内蒙古产甘草不能准确区分。以上研究结果表明,不同产地甘草中核苷、碱基类成分存在差异,进而影响其质量特征。基于核苷、碱基类成分分析,宁夏和内蒙古产甘草质量一致度较高。本研究为揭示不同产地甘草质量存在差异提供了理论支持,为其合理开发利用奠定了基础。

关键词：甘草核苷碱基产地质量评价

三子养亲汤合二陈汤联合温针灸治疗慢性阻塞性肺疾病的研究

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实用中西医结合临床 2024年第15期24卷 13-16页

作者：别红军徐菲郭东伟南阳医学高等专科学校附属中医院河南南阳473000

目的探讨三子养亲汤合二陈汤联合温针灸治疗痰浊阻肺型慢性阻塞性肺疾病(COPD)的临床效果。方法选取2021年10月至2022年10月南阳医学高等专科学校附属中医院收治的痰浊阻肺型COPD急性加重期患者150例作为研究对象,按照信封随机法分为对... 详细信息

目的探讨三子养亲汤合二陈汤联合温针灸治疗痰浊阻肺型慢性阻塞性肺疾病(COPD)的临床效果。方法选取2021年10月至2022年10月南阳医学高等专科学校附属中医院收治的痰浊阻肺型COPD急性加重期患者150例作为研究对象,按照信封随机法分为对照组与联合组,各75例。对照组在常规治疗基础上进行温针灸治疗,联合组在对照组基础上联合三子养亲汤合二陈汤治疗。比较两组临床疗效、中医证候积分、炎症指标、肺通气功能、生活质量[慢性阻塞性肺疾病临床呼吸问卷(CCQ)评分]及不良反应发生率。结果联合组治疗总有效率高于对照组(P0.05);治疗后,两组肺通气功能指标水平均高于治疗前,且联合组比对照组更高(P0.05)。结论三子养亲汤合二陈汤联合温针灸治疗痰浊阻肺型COPD患者的效果显著,可显著改善临床症状,恢复肺通气功能,降低炎症因子水平,提升生活质量,具有较高安全性。

关键词：慢性阻塞性肺疾病痰浊阻肺型三子养亲汤合二陈汤温针灸

Recent Advances in Pd-Catalyzed Reactions Involving the “On-Water” Mechanism

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Chinese Journal of Chemistry 2024年第5期42卷 533-542页

作者： dong wei guo-Qiang Lin State Key Laboratory of Systems Medicine for Cancer Shanghai Cancer InstituteShanghai Key Laboratory of Systems Regulation and Clinical Translation for CancerRen Ji HospitalShanghai Jiao Tong University School of MedicineShanghai200127 China State Key Laboratory of Chemical Biology Shanghai Institute of Organic ChemistryUniversity of Chinese Academy of SciencesChinese Academy of SciencesShanghai200032 China

As the chemical industry grapples with the need for more eco-friendly practices,the use of water as a reaction medium is gaining attraction in organic *** mini-review delves into Pd-catalyzed reactions that utilize the "on-water" mechanism,spanning from 2019 to late *** reactions are neatly categorized into several types: (A) Catalytic C—H activations,(B) Mizoroki- Heck-type reactions,(C) Suzuki-Miyaura reactions,and (D) Cyclization *** showcasing the potential of water as a sustainable reaction medium for organic transformations,these reactions leave no doubt about the importance of embracing eco-friendly practices in the chemical *** Scientists In 1980,a seminal work by Breslow et *** an acceleration of reaction rate in the Diels-Alder *** and co-workers noted a significant increase in the rate of the [2σ+2σ+2π] cycloaddition of quadricyclane and dimethyl azodicarboxylate (DMAD) when the reaction was conducted in water,as opposed to when it was carried out in organic *** term "on-water" was then coined to describe this *** strategy was further expanded to transition-metal catalyzed transformations by Ackermann in ***,Varma and Leazer disclosed a Pd-catalyzed Mizoroki-Heck type arylation of alkenes with diaryliodonium salts “on-water”.The enantioselective version of "on-water" process was not realized until 2014 by the Zhou *** on,the Schaub group described a Pd-catalyzed Suzuki–Miyaura coupling reaction of electron-poor aryl chlorides with water,using only 50 ppm of catalyst *** recently,Liu and Lin extended the "on-water" strategy to Pd-catalyzed double Mizoroki-Heck *** mini-review has focused on Pd-catalyzed reactions involving the “on-water” mechanism.

关键词： Pd-catalyzed “On-water” Green chemistry Aqueous reactions Mechanism Methodology and reactions Mizoroki-Heck reaction Cross-coupling

Increased Tibetan Plateau vortex activities under 2℃warming compared to 1.5℃warming:NCAR CESM low-warming experiments

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Advances in Climate Change Research 2021年第3期12卷 322-332页

作者： LIN Zhi-Qiang guo wei-dong GE Jun WU Run-Qi DU Jun School of Atmospheric Sciences Nanjing UniversityNanjing210023China Tibet Institute of Plateau Atmospheric and Environmental Science Lhasa850000China

The Tibetan Plateau vortices(TPVs)are the major rain-producing systems over the Tibetan Plateau(TP).The activities of TPVs are closely related to TP's water source,which supplies fresh water to millions of people in *** of the TPVs can increase understanding about the future of water supply in Asia under global *** this study,the possible activities of TPVs under 1.5℃and 2℃warming scenarios above the pre-industrial level are evaluated through the NCAR CESM(Community Earth System Model)Low-warming(CESM-LW)*** results show that the CESM-LW well reproduces the spatio-temporal characteristics of TPVs in the historical run from 1985 to *** CESM-LW suggests TPVs in warm season(May-September)increase by 15%due to the additional 0.5℃warming by the end of this century(2071—2100).It implies the greater importance of TPVs to the precipitation over the TP in the *** changes of TPVs are closely related to the large-scale circulations *** additional 0.5℃warming strengthens the temperature difference between the TP and its surrounding areas,which results in an enhanced convergence near the TP's surface and divergence in the upper troposphere by about-0.1×10^(-6)and 0.22×10^(6)s^(-1),*** assessment of future TPVs provides a synoptic dynamic perspective on the climate change of precipitation and water resources.

关键词： Tibetan Plateau vortex 2℃and 1.5℃warming Paris agreement Tibet plateau heating Low-warming scenarios

Fuzzy Evaluation of Coal Seam Geological Condition of Fully-Mechanized Face in Ten-Million-Ton Mine

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Journal of China University of Mining and Technology 2005年第3期15卷 208-212页

作者： LI wei-min dong guo-wei WANG Hong-sheng FENG Mei-mei School of Mineral and Safety Engineering China University of Mining ＆ Technology Xuzhou Jiangsu 221008 China Jisan Mine of Yanzhou Mining Group Jining Shandong 272100 China

Based on coal seam geological condition and mining technological characteristic in Jisan Mine, coal seamgeological condition is quantitative evaluated by using fuzzy evaluation with the view of coal mining and coalfaceproduction. The structure and index system of evaluation factor, the membership functions and weights of evaluationfactor, evaluation model and reliability in the coal seam geological conditions are expounded in detail. Eighty-twocoalfaces which will be exploited is classified. All of these have provided a theoretical foundation for the selection ofcoal mining technology and for sustainable development of the coal mine.

关键词： fuzzy evaluation membership function ten-million-ton mine

THREE-DIMENSIONAL SIMULATION FOR EFFECTS OF BED DISCORDANCE ON FLOW DYNAMICS AT Y-SHAPED OPEN CHANNEL CONFLUENCES

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Journal of Hydrodynamics 2007年第5期19卷 587-593页

作者： WANG Xiao-gang YAN Zhong-min guo wei-dong College of Water Conservancy and Hydropower Engineering Hohai University Nanjing 210098 China College of Water Conservancy Shenyang Agricultural University Shenyang 110161 China

Channel confluences are universally present in nature. They can be divided into two types： asymmetrical river confluences and symmetric river confluences. The latter is also called as the Y-shaped confluences. Most of previous work has paid more attention to the asymmetrical river confluences, but few studies have been conducted on the Y-shaped confluences. In this article, the effects of bed discordance on the flow patterns at ＂Y＂ shaped open-channel confluences were studied by using a 3-D numerical simulation. It is proved that the model can undertake quantitative assessment of the flow at confluences. The results indicate that there are a lot of differences between the Y-shaped confluence and asymmetrical confluence. The discordant bed height plays an important role at the Y-shaped junction.

关键词： Y-shaped junction discordant bed height,separation zone numerical simulation turbulent intensity,secondary flow lateral mixing

The effect of amylose on kernel phenotypic characteristics,starch-related gene expression and amylose inheritance in naturally mutated high-amylose maize

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Journal of Integrative Agriculture 2020年第6期19卷 1554-1564页

作者： ZHANG Xu-dong GAO Xue-chun LI Zhi-wei XU Lu-chun LI Yi-bo ZHANG Ren-he XUE Jiquan guo dong-wei Key Laboratory of Biology and Genetic Improvement of Maize in Arid Area of Northwest Region Ministry of Agriculture and Rural Affairs/College of AgronomyNorthwest A&F UniversityYa ng ling 712100P.R.China Institute of Crop Science Quality of Plant ProductsUniversity of HohenheimStuttgart 70599Germany

High-amylose maize starch has great pote ntial for widespread in dustrial use due to its ability to form strong gels and film and in the food processi ng field,thus servi ng as a resista nt starch ***,there is still a substa ntial shortage of high-amylose maize due to the limitation of natural germplasm resources,although the well-known amylose extender(ae)gene mutants have bee n found to produce high-amylose maize lines since *** this con text,high-amylose maize lines(13 inbreds and 18 hybrids)originating from a natural amylose mutant in our testing field were utilized to study the correlation between amylose content(AC)and phenotypic traits(kernel morphology and endosperm glossiness),grain filling characteristics,gene expression,and amylose *** results showed that AC was negatively correlated with total starch con tent but was not correlated with grain phe no types,such as kernel full ness,kernel morphology and endosperm *** lines with higher amylose had a greater grain filling rate than that of the controI(B73)during the first 20 days after pollination(DAP).Both starch debranching enzyme(DBE)groups and starch branching enzyme lib(SBEIIb)groups showed a greater abundance in the control(B73)than in the high-amylose maize *** parents directly predicted AC of Fv which was moderately positively correlated with the F2 generation.

关键词： starch biosynthesis amylose inheritance high-amylose maize grain filling rate