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THE SUPPORTED GOLD CATALYSTS FOR CLOSED CYCLE CO_2 LASER

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Chinese Chemical Letters 1995年第5期6卷 447-448页

作者： Zheng ping HAO Li dun AN Hong Li WANG (Lanxhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000)

Sealed-off carbon dioxide lasers encounter problem of dissociation of CO2, Which causes the output power to fall. Reformation of CO2 is therefore essential for long life CO2 lasers. Au/Fe2O3 and Au/NiFe2O4 are promis... 详细信息

关键词： CO THE SUPPORTED GOLD CATALYSTS FOR CLOSED CYCLE CO2 LASER

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异质镜像光子晶体的光子带隙研究

发光学报 2013年第8期34卷 1079-1083页

作者：王瑾温廷敦许丽萍樊彩霞中北大学理学院物理系山西太原030051 中北大学电子与计算机科学技术学院山西太原030051

对异质镜像结构光子晶体(ABCCBA)N进行了研究。首先,利用一维介电体系中处理光传播的方法——传输矩阵法,详细推导了异质镜像光子晶体透射率的计算公式;然后,采用Matlab软件编程仿真并分析了光子带隙形成与镜像周期数目、光子带隙数目... 详细信息

对异质镜像结构光子晶体(ABCCBA)N进行了研究。首先,利用一维介电体系中处理光传播的方法——传输矩阵法,详细推导了异质镜像光子晶体透射率的计算公式;然后,采用Matlab软件编程仿真并分析了光子带隙形成与镜像周期数目、光子带隙数目与光子晶体薄层厚度、光子带隙位置与入射角大小等的关系。结果表明:光子带隙的形成及变化主要受光子晶体薄层厚度及入射角大小变化的影响。通过改变影响光子晶体光子带隙的参数,可得到不同频段的光子带隙,用来制作高质量反射镜、滤波器和发光二极管等。

关键词：异质镜像光子晶体传输矩阵法光子带隙

Genetic analysis and QTL mapping of a novel reduced height gene in common wheat (Triticum aestivum L.)

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Journal of Integrative Agriculture 2020年第7期19卷 1721-1730页

作者： ZHOU Chun-yun XIONG Hong-chun LI Yu-ting GUO Hui-jun XIE Yong-dun ZHAO Lin-shu GU Jia-yu ZHAO Shi-rong DING Yu-ping SONG Xi-yun LIU Lu-xiang School of Life Sciences Qingdao Agricultural UniversityQingdao 266109P.R.China Institute of Crop Sciences Chinese Academy of Agricultural Sciences/National Engineering Laboratory for Crop Molecular Breeding/National Center of Space Mutagenesis for Crop ImprovementBeijing 100081P.R.China

Low stature in wheat is closely associated with lodging resistance,and this impacts harvest index and grain *** discovery of novel dwarfing or semi-dwarfing genes can have great significance for dwarf wheat *** this study,we identified an EMS induced dwarf wheat mutant JE0124 from the elite cultivar ***0124 possesses increased stem strength and a 33%reduction in plant height compared with wild *** acid(GA)treatment analysis suggested that JE0124 was *** of the frequency distribution of plant height in four F,populations derived from crosses between JE0124 and the relatively taller varieties Nongda 5181 and WT indicated that the dwarfism phenotype was quantitatively *** used two F,populations and 312 individuals from the reciprocal cross of Nongda 5181 and JE0124 to map the quantitative trait locus(QTL)for reduced height to a 0.85-cM interval on chromosome *** mapping was done by using a combination of 660K SNP array-based bulked segregant analysis(BSA)and genetic linkage analysis,with logarithm of odds(LOD)scores of 5.34 and 5.78,***,this QTL accounted for 8.27-8.52%of the variation in the *** dwarf mutant JE0124 and the newly discovered dwarfing gene on chromosome 2DL in this study will enrich genetic resources for dwarf wheat breeding.

关键词： reduced height gene wheat QTL BSA molecular marker

Tauroursodeoxycholic acid(TUDCA)improves intestinal barrier function associated with TGR5-MLCK pathway and the alteration of serum metabolites and gut bacteria in weaned piglets

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Journal of Animal Science and Biotechnology 2022年第6期13卷 1917-1931页

作者： Min Song Fenglin Zhang Yiming Fu Xin Yi Shengchun Feng Zhichang Liu dun Deng Qiang Yang Miao Yu Canjun Zhu Xiaotong Zhu Lina Wang ping Gao Gang Shu Xianyong Ma Qingyan Jiang Songbo Wang Guangdong Provincial Key Laboratory of Animal Nutrition Control ALLT ECH-SCAU Animal Nutrition Control Research Allianceand National Engineering Research Center for Breeding Swine IndustryCollege of Animal ScienceSouth China Agricultural UniversityGuangzhou 510642P.R.China Institute of Animal Science Guangdong Academy of Agricultural SciencesState Key Laboratory of Livestock and Poultry BreedingKey Laboratory of Animal Nutrition and Feed Science in South ChinaMinistry of Agriculture and Rural AffairsGuangdong Key Laboratory of Animal Breeding and NutritionGuangdong Engineering Technology Research Center of Animal Meat Quality and Safety Control and EvaluationGuangzhou 510640P.R.China Maoming Branch Guangdong Laboratory for Lingnan Modern Agricultural Science and TechnologyMaoming 525000P.R.China

Background:Tauroursodeoxycholic acid(TUDCA),a hydrophilic bile acid,is the main medicinal component of bear bile and is commonly used to treat a variety of hepatobiliary ***,TUDCA has been shown to modulate the intestinal barrier function and alleviate DSS-induced colitis in ***,the effect of TUDCA on the intestinal barrier of weaned piglets remains largely ***:The weaned piglets and porcine IPEC-J2 intestinal epithelial cells were used to investigate the effects of TUDCA on intestinal barrier function in weaned piglets and explore the possible underlying *** vivo,72 healthy weaned piglets were randomly allocated into 2 groups according to their gender and body weight,and piglets were fed the basal diet with 0(control,CON)and 200 mg/kg TUDCA for 30 d,*** female and three male piglets reflecting the average bodyweight were slaughtered in each group and samples were *** vitro,IPEC-J2 cells were subjected to 100μmol/L TUDCA to explore the possible underlying ***:Our results demonstrated that dietary TUDCA supplementation significantly reduced the diarrhea incidence of weaned piglets,possibly attributing to the TUDCA-enhanced intestinal barrier function and *** addition,TUDCA supplementation altered serum metabolites and the relative abundance of certain gut bacteria,which might contribute to the improved intestinal barrier ***,the in-vitro results showed that TUDCA improved the ***-induced epithelial barrier impairment of IPEC-J2 cells and increased Takeda G-coupled protein receptor 5(TGR5)protein ***,knockdown of TGR5 and inhibition of myosin light chain kinase(MLCK)pathway abolished the TUDCA-improved epithelial barrier impairment in ***-treated IPEC-J2 cells,indicating the involvement of TGR5-MLCK in this ***:These findings showed that TUDCA improved intestinal barrier function associated with TGR5-MLCK pathway and the al

关键词： Gut bacteria Intestinal barrier function Serum metabolites Tauroursodeoxycholic acid(TUDCA) TGR5-MLCK pathway Weaned piglets

以人格为核心的能力结构:整体把握育人目标的学科教学理论探索

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中国教育学刊 2022年第1期 28-35页

作者：季苹顿继安北京教育学院学科教育学研究中心北京100011 北京教育学院数学与科学教育学院北京100044

对育人目标方方面面的要求如果缺乏整体性和结构性的认识,会导致教师迷失于各种要求的森林而难以整体把握培养目标,为此提出以人格为核心的能力结构。这种能力结构由自我发展能力、问题解决能力和学科能力构成,其中问题解决能力是能力... 详细信息

对育人目标方方面面的要求如果缺乏整体性和结构性的认识,会导致教师迷失于各种要求的森林而难以整体把握培养目标,为此提出以人格为核心的能力结构。这种能力结构由自我发展能力、问题解决能力和学科能力构成,其中问题解决能力是能力的本质内涵和根本存在形式并能够将各种认知能力有机整合,自我发展能力在能力结构中发挥着心理推动与组织作用,其与问题解决能力的发展互相推动、互为表里,学科能力即运用学科知识解决学科和现实中问题的能力,是能力实现的重要基础条件,需要通过问题解决来形成和呈现。这种能力结构观为学科教学的优化提出了具体策略,有利于学科育人目标的实现。

关键词：人格自我发展能力问题解决能力学科能力学科育人

QUANTUM　CHEMICAL　STUDY　ON　THE　MECHANISM　OF　PRODUCING　OXYGENATES　IN　FISCHER－TROPSCH　SYNTHESIS　ON　M／SiO＿2　（M＝Ni，　Ru，　Rh，　Pd）　CATALYSTS

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Chinese Chemical Letters 1994年第6期5卷 511-514页

作者： Zheng ping HAO Tian Wei ZHU Li dun AN (Lanzhou Institute of Chemical Physics. Chinese Academy of Sciences, Lanzhou 730000)

EHMO calculations and orbital analysis of fragments were performed for the Synthetic reactions of oxygenates in Fischer-Tropsch synthesis using a butterfly model for four different metals (Nim Ru, Rh, Pd)supported on SiO2 as catalysts. Four processest CO dissociation, coupling of CO and H to produce *** of CO to M-CH3; insertion of CH2 to M-CH3 have been calculated. We compared the degree of CO bond activation and the banters of the foregoing processes for these four catalysts, it can be shown that Ni/SiO2 is a methanation catalyst, Ru/SiO2 and Rh/SiO2 can produce C2-oxygenated compound (acetaldehyde), especially Rh/SiO2 is a good catalyst for producing it, and Pd/SiO2 is a methanol Synthesis catalyst.

关键词： Pd CATALYSTS Ru SiO Rh Ni

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树脂合成轨枕强度分析

铁道标准设计 2015年第7期59卷 50-54页

作者：蔡敦锦王平西南交通大学高速铁路线路工程教育部重点实验室成都610031

基于有限单元法,依据轨枕实际受力情况建立有限元模型,对钢桁梁明桥面上设计铺设的以玻璃纤维与树脂为主要材料的合成轨枕强度进行分析,主要对合成轨枕的横向强度、纵向强度和合成轨枕材料对螺纹道钉的抗拔强度随合成轨枕尺寸变化的规... 详细信息

基于有限单元法,依据轨枕实际受力情况建立有限元模型,对钢桁梁明桥面上设计铺设的以玻璃纤维与树脂为主要材料的合成轨枕强度进行分析,主要对合成轨枕的横向强度、纵向强度和合成轨枕材料对螺纹道钉的抗拔强度随合成轨枕尺寸变化的规律进行分析,研究结果表明:在合理尺寸范围内,合成轨枕尺寸的变化对其横向强度与纵向强度各方向的应力影响较小;合成轨枕的横向强度与纵向强度能满足规范要求。对合成轨枕纵向强度分析得出,合成轨枕沿玻璃纤维方向的强度预留不足,建议提高合成轨枕沿玻璃纤维方向强度。对合成轨枕抗拔强度分析得出,在合理尺寸范围内,随合成轨枕宽度增加,垂直方向螺纹平均拉应力随之减小,但减小率较小;随厚度增加,轨枕纵向最大拉应力整体为递减趋势;随着合成轨枕尺寸变化,其他各方向的应力变化不明显;合成轨枕能满抗拔强度的要求。

关键词：合成轨枕树脂有限元玻璃纤维

Treatment of Single Level Lumbar Spondylolisthesis with Lumbar Interbody Fusion via Oblique Lateral Approach (OLIF)

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Surgical Science 2023年第1期14卷 46-54页

作者： jinpeng Zheng dun Liu jing Shi Han Wu ping Cao Bing Hu Department of Orthopedics Tianyou Hospital Affiliated to Wuhan University of Science & Technology Wuhan China

Objectives: To investigate the effect of lumbar interbody fusion via the oblique lateral approach (OLIF) in the treatment of single level lumbar spondylolisthesis. Methods: Retrospective analysis was made on 32 cases of single level lumbar spondylolisthesis treated by lumbar interbody fusion via the oblique lateral approach from July 2020 to July 2021. 14 males and 18 females;the age was (66.5 ± 11.5) years (55 - 82 years). 1) The operation time, intraoperative blood loss and complications were recorded;2) the scores of visual analog scale. VAS and Oswestry disability index (ODI) of low back pain and lower limb pain were collected before operation and at the last follow-up;by observing the imaging data, the height of the intervertebral space, the anterior convex angle of the intervertebral space, the anterior convex angle of the lumbar spine, the sagittal diameter of the dural sac and the spondylolisthesis were measured. Results: All patients successfully completed the operation, the average operation time was (103.9 ± 21.1) min, the average intraoperative bleeding volume was (72.3 ± 16.4) ml. There was no vascular injury during the operation, no infection occurred in all surgical incisions, and Class I/A healing was achieved. The VAS scores of low back pain and leg pain before operation and at the last follow-up were lower than those before operation, and the difference was statistically significant (P < 0.05);the ODI at the last follow-up was lower than that before operation, and the difference was statistically significant (P < 0.05). At the last follow-up, the height of intervertebral space, the height of intervertebral foramen and the sagittal diameter of dural sac were greater than those before operation, with statistically significant differences (P < 0.05);the spondylolisthesis rate at the last follow-up was lower than that before operation, with a statistically significant difference (P < 0.05). Left thigh surface numbness occurred in 2 cases (6.3%) and dis

关键词： Oblique Lateral Approach Lumbar Interbody Fusion Single Segment Lumbar Spondylolisthesis

Development and Initial Validation of the Novel Scale for Assessing Quality of Life of Prostate Cancer Patients Receiving Androgen Deprivation Therapy

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Chinese Medical Journal 2017年第17期130卷 2082-2087页

作者： Yao-Jun dun Hui-Xin Liu Lu-ping Yu Qing Li Xiao-Wei Zhang Xu Tang Cai-Peng Qin Tao Xu Department of Urology Peking University People&#39 s Hospital Beijing 100044 China Department of Clinical Epidemiology Peking University People&#39 s Hospital Beijing 100044 China Department of Urology Peking University International Hospital Beijing 102206 China

Background：There has been no a specific scale to measure quality of life （QOL） for prostate cancer patients receiving androgen deprivation therapy （ADT） to *** study aimed to develop and initially validate the scale to evaluate QOL for prostate cancer patients receiving ***：The scale was developed following international ***,the items were all generated through literature review and referenced *** being reviewed by expert panelists,the revised scale was formed and then completed by a convenience sample of 200 prostate cancer patients from our *** factor analysis （EFA） was applied to test the construct validity,then split-half reliability,Cronbach＆#39;s alpha,and test-retest reliability were applied to assess the reliability and stability of the ***：The revised scale contained 22 items and a total of 200 participants had completed the *** hundred participants were randomly selected from the total 200 participants to perform EFA with varimax rotation on the revised scale,and ＆quot;hot flashes＆quot; item was deleted for low factor *** selected only 3 items from each factor,then,the final scale was formed with *** selected another 100 participants to perform the EFA again on the final *** was demonstrated that the structure with 6 factors explained 72.5% of total variance and factor loading value was above 0.40 in all items of the ***,the split-half reliability coefficient,Cronbach＆#39;s alpha,and test-retest reliability coefficient were calculated to be 0.74,0.63,and 0.89,respectively,exhibiting good reliability on the ***：The scale was identified to be a valid and reliable instrument to measure QOL for prostate cancer patients receiving ***,further research is needed to overcome the potential drawbacks.

关键词： Androgen Deprivation Therapy Exploratory Factor Analysis Prostate Cancer Quality of Life Scale