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Design of high-performance molybdenum alloys via doping metal oxide and carbide strengthening:A review

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Journal of Materials Science & Technology 2023年第29期160卷 161-180页

作者： Hairui Xing Ping Hu Chaojun He Xiangyang Zhang Jiayu Han Fan Yang run bai Wen Zhang Kuaishe Wang Alex AVolinsky School of Metallurgy Engineering Xi’an University of Architecture and TechnologyXi’an 710055China National and Local Joint Engineering Research Center for Functional Materials Processing Xi’an University of Architecture and TechnologyXi’an 710055China Northwest Institute for Non-ferrous Metal Research Xi’an 710016China Department of Mechanical Engineering University of South Florid14202 E.Fowler Ave.ENG 030Tamp1FL 33620USA

Metal oxide and carbide strengthening molybdenum(Mo)alloys have been designed as promising ad-vanced materials in refractory metals to solve some of the core engineering problems in superalloy ***,there is a need to summarize the results obtained and evaluate the opportunities for preparing high-performance Mo alloys by strengthening metal oxides and carbides to improve the per-formance characteristics of Mo metal *** paper reviews the results of the reported work con-cerning the structure and properties of Mo alloys with different metal oxide and carbide strengthening methods added to Mo *** influence of the doping of La 2 O 3 and Y 2 O 3 particles,ceramic Al 2 O 3 and ZrO 2 particles,and refractory TiC and ZrC carbides particles of Mo alloys are *** impacts of particle morphology,size,distribution and volume fractions of oxide and carbide are analyzed,as well as the specific features of different doping techniques for obtaining high-performance Mo alloys *** work will guide future research on the design of high-performance refractory Mo alloys by adding oxides and carbide particles,helping to solve the core issues in the field of superalloy application research.

关键词： Molybdenum alloy Metal oxide and carbide addition Oxide dispersion-strengthened Carbide precipitation-strengthened Microstructure Mechanical properties

X-linked Charcot-Marie-Tooth disease after SARS-CoV-2 vaccination mimicked stroke-like episodes: A case report

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World Journal of Clinical Cases 2023年第2期11卷 464-471页

作者： Qiang Zhang Yang Wang run-Tao bai Bao-Rong Lian Yu Zhang Li-Ming Cao Department of Neurology The First Affiliated Hospital of Shenzhen UniversityShenzhen 518000Guangdong ProvinceChina Shantou University Medical College Shantou UniversityShantou 515063Guangdong ProvinceChina Clinical College of The Shenzhen Second People's Hospital Anhui Medical UniversityShenzhen 518000Guangdong ProvinceChina Hunan Key Laboratory of The Research and Development of Novel Pharmaceutical Preparations Changsha Medical UniversityChangsha 410219Hunan ProvinceChina

BACKGROUND Severe acute respiratory syndrome coronavirus 2(SARS-CoV-2) vaccinations have been administered worldwide, with occasional reports of associated neurological complications. Specifically, the impact of vaccinations on individuals with Xlinked Charcot-Marie-Tooth disease type 1(CMTX1) is unclear. Patients with CMTX1 can have stroke-like episodes with posterior reversible encephalopathy syndrome on magnetic resonance imaging(MRI), although this is *** SUMMARY A 39-year-old man was admitted with episodic aphasia and dysphagia for 2 d. He received SARS-CoV-2 vaccination 39 d before admission. Physical examination showed pes cavus and reduced tendon reflexes. Brain MRI showed bilateral, symmetrical, restricted diffusion with T2 hyperintensities in the cerebral hemispheres. Nerve conduction studies revealed peripheral nerve damage. He was diagnosed with Charcot-Marie-Tooth disease, and a hemizygous mutation in the GJB1 gene on the X chromosome, known to be pathogenic for CMTX1, was identified. Initially, we suspected transient ischemic attack or demyelinating leukoencephalopathy. We initiated treatment with antithrombotic therapy and immunotherapy. At 1.5 mo after discharge, brain MRI showed complete resolution of lesions, with no *** SARS-CoV-2 vaccination could be a predisposing factor for CMTX1 and trigger a sudden presentation.

关键词： X-linked Charcot-Marie-Tooth disease SARS-CoV-2 vaccination Stroke-like episodes Reversible splenial lesion syndrome Demyelinating leukoencephalopathy Case report

Effects of imidacloprid and thiamethoxam as seed treatments on the early seedling characteristics and aphid-resistance of oilseed rape

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Journal of Integrative Agriculture 2015年第12期14卷 2581-2589页

作者： HUANG Liang ZHAO Chun-lin HUANG Fang bai run-e Lü Yao-bin YAN Feng-ming HAO Zhong-ping School of Agricultural and Food Science Zhejiang A & F University Institute of Plant Protection and Microbiology Zhejiang Academy of Agricultural Sciences College of Plant Protection Henan Agricultural University Key Laboratory of Crop Quality Improvement of Anhui Province Crop Research Institute Anhui Academy of Agricultural Sciences

Seed treatments with the neonicotinoid insecticides imidacloprid and thiamethoxam were evaluated to determine whether the chemicals at effective concentrations for aphid control would influence the germination and early growth of oilseed rape,Brassica *** with imidacloprid or thiamethoxam did not affect the cumulative germination rate,but significantly inhibited establishment potential by suppressing root system development in the cotyledon ***,these alterations in seedling development in the thiamethoxam-treated seeds appeared not to be detrimental as leaves developed;in contrast,for the seedlings with imidacloprid as seed treatment agent,a significantly decreased shoot/root ratio was still evident at the late two-leaf *** two leaves developed,chlorophyll content per leaf in the thiamethoxam treatment was significantly higher than that of the control,while chlorophyll content per leaf in the imidacloprid treatment remained close to that in the *** other parameters,i.e.,height,leaf area,weight of stem,leaf or root,and other growth indexes,between the treatments and the control showed no significant ***,it was found that storage time of the treated seeds had a significant effect on cumulative germination *** 30 d before planting significantly reduced germination relative to that of the *** of the plants treated with neonicotinoids were shown to have significant anti-aphid characteristics that persisted until the end of the trial.

关键词： oilseed rape seed coating agent imidacloprid thiamethoxam seedling growth germination aphid

Comparative Morphology and Morphometry of Six Biotypes of Bemisia tabaci (Hemiptera: Aleyrodidae) from China

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Journal of Integrative Agriculture 2013年第5期12卷 846-852页

作者： LI Jing-jing TANG Qing-bo bai run-e LI Xiao-min JIANG Jin-we ZHAI Qing YAN Feng-ming College of Plant Protection Henan Agricultural University

Morphology and morphometry of six biotypes （B, Q, Cv, ZHJ-1, ZHJ-2 and ZHJ-3） of Bemisia tabaci （Gennadius） from China on cotton plants were studied by using microscopes. Nymphal body sizes and characters were measured and observed, especially on the 4th instar （pupal case）, including the vasiform orifice, operculum, lingula, length and thickness of anterior and posterior wax margins, width of thoracic tracheal combs. Adult characters of both sexes were investigated including the body size, compound eyes, antennal segments, vasiform orifice, hind tarsi and genitals. The results indicated that differences of some morphological characters or morphometrics were significant among the six biotypes of B. tabaci in China：（1） Pupal sizes of the exotic biotypes （B and Q） were significantly larger than the indigenous biotypes with the following order as B〉Q〉ZHJ-I〉Cv〉ZHJ-3〉ZHJ-2; （2） for both male and female adults, sizes of all characters investigated in the invading biotypes （B and Q）, especially B, were much larger than those of the indigenous ones.

关键词： Bemisia tabaci biotype morphology morphometry nymph adult size wax margin vasiform orifice antennalsegments

唐代变文叙事学例论--兼论变文的小说史意义

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深圳大学学报（人文社会科学版） 2009年第2期26卷 97-103页

作者： [韩]白润延世大学人文学院韩国首尔

敦煌变文使中古文言小说和近现代白话小说互相连接起来,它确立了中国白话故事的基础,并让宋朝和元朝的小说文本占据了重要地位。用叙事学的方法观照这些变文,可见《目连救母变文》中有三角形的内在结构,《伍子胥变文》中存在着"郁积—... 详细信息

敦煌变文使中古文言小说和近现代白话小说互相连接起来,它确立了中国白话故事的基础,并让宋朝和元朝的小说文本占据了重要地位。用叙事学的方法观照这些变文,可见《目连救母变文》中有三角形的内在结构,《伍子胥变文》中存在着"郁积——化解模型",《韩朋赋》以离合作为情节发展动力,《秋胡变文》呈现了家庭小说里的矛盾状态。

关键词：敦煌变文叙事学小说史意义

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精馏过程计算中相对挥发度的平均值近似

石油化工 1999年第4期28卷 247-249页

作者：白润生清华大学核能技术设计研究院

以Ｆｅｎｓｋｅ公式计算全回流条件下的最少理论级数时，需要分离组份间的相对挥发度。当相对挥发度非恒定时，需计算平均相对挥发度。常用的两端点值几何平均法在相对挥发度变化较小的情况下误差较小。而当相对挥发度变化大时，需加入... 详细信息

以Ｆｅｎｓｋｅ公式计算全回流条件下的最少理论级数时，需要分离组份间的相对挥发度。当相对挥发度非恒定时，需计算平均相对挥发度。常用的两端点值几何平均法在相对挥发度变化较小的情况下误差较小。而当相对挥发度变化大时，需加入第三点的相对挥发度值。合理选取第三点的位置可有效提高计算精度。本文提出了第三点位置的确定方法。该方法理论明确，计算简单，用于相对挥发度变化较大及级数较多的情况时，优于其它方法。

关键词：精馏过程计算相对挥发度平均值近似

中外高校科研文件档案管理的对比研究及发展趋势

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山西档案 2009年第5期 42-43页

作者：白润连吕梁高等专科学校山西吕梁033000

高校科研文件档案管理工作是高校教育事业重要组成部分，是高校发展、社会发展的需要。近年来，我国虽然在档案学研究及应用技术方面取得了很大成绩，但与迅速发展的信息时代还存在较大差距，尤其是高等院校的科研档案信息管理工作，多... 详细信息

高校科研文件档案管理工作是高校教育事业重要组成部分，是高校发展、社会发展的需要。近年来，我国虽然在档案学研究及应用技术方面取得了很大成绩，但与迅速发展的信息时代还存在较大差距，尤其是高等院校的科研档案信息管理工作，多数还停留在传统管理的形式上，档案的利用率很受限制，难以对档案信息进行定量分析。本文通过对比研究国内外高校在科研文件档案管理方面的差异，提出国内外的发展趋势和当前的实施措施。

关键词：中外高等学校科研文件档案管理

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城市用水量预测模型及其应用

辽宁工程技术大学学报（自然科学版） 2005年第Z1期24卷 288-289页

作者：魏令勇白润才辽宁工程技术大学资源与环境工程学院辽宁阜新123000

利用径向基函数神经网络,建立了城市用水量预测模型,并根据阜新市近些年来影响城市用水量的主要影响因素的数据对该网络进行训练,用训练好的网络模型预测今后的城市用水量,拟和预测结果表明该模型有较高预测精度,并具有一定的通用性和... 详细信息

利用径向基函数神经网络,建立了城市用水量预测模型,并根据阜新市近些年来影响城市用水量的主要影响因素的数据对该网络进行训练,用训练好的网络模型预测今后的城市用水量,拟和预测结果表明该模型有较高预测精度,并具有一定的通用性和客观性等优点。

关键词：城市用水量 RBF神经网络需水预测

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基于非形状及尺度的露天采场性能评价

系统工程理论与实践 2014年第12期34卷 3274-3280页

作者：崔铁军马云东白润才辽宁工程技术大学安全科学与工程学院阜新123000 大连交通大学辽宁省隧道与地下结构工程技术研究中心大连116028 辽宁工程技术大学资源与环境工程学院阜新123000

采场性能是通过最大开采量和最小贫化率确定的.目前的评价方法得到的结果是基于尺度的,无法比较不同尺度采场性能,而且不能考虑超欠采体的形状特征.针对上述问题本文构建了一组与尺度无关的评价指标.研究已有的评价指标,对一些基本形状... 详细信息

采场性能是通过最大开采量和最小贫化率确定的.目前的评价方法得到的结果是基于尺度的,无法比较不同尺度采场性能,而且不能考虑超欠采体的形状特征.针对上述问题本文构建了一组与尺度无关的评价指标.研究已有的评价指标,对一些基本形状进行特征分析.提出用圆度(C)表示超欠采面的规则程度;用延度(E)表示超欠采面的分散性及覆盖性;用半球度(H)表示超欠采体的等效深度;用相对体积(Rv)总体评价采场性能.确定了这四个无量纲指标值的范围和各指标的划分语义及其数值范围.构建的评价指标体系做到了评价方法、评价指标和评价标准的统一,这样就实现了不同尺度采场性能的比较.通过对4个构造的采场进行评价,得到了四个指标的评价值和语义,最后确定了各自的潜在失效方式.结果表明该方法简单易行,结果符合实际情况.

关键词：露天采场非尺度相关形状-大小采场性能评价体系