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Moxibustion regulates inflammatory mediators and colonic mucosal barrier in ulcerative colitis rats

World Journal of Gastroenterology 2016年第8期22卷 2566-2575页

作者： Tie-Ming Ma Na Xu Xian-De Ma Zeng-Hua Bai Xing Tao hong-chi yan Liaoning University of Traditional chinese Medicine Shenyang 110847 Liaoning Province China

AIM: To observe the efficacy and mechanism of grain-sized moxibustion at different acupoints in a rat model of ulcerative colitis (UC). METHODS: Sprague-Dawley rats were randomly divided into control, UC model, grain-sized moxibustion at a single acupoint (CV 12), grain-sized moxibustion at two acupoints (CV 12 and CV 4), grain-sized moxibustion at three acupoints (CV 12, CV 4, and ST 36), and medication groups (n = 8/group). The UC model was established by enema of trinitrobenzene sulfonic acid. Direct moxibustion was used once a day for 7 d. Disease activity index (DAI) was evaluated before and after the treatment. Morphologic changes of intestinal tissue were observed under an optical microscope. The expression of tumor necrosis factor (TNF)-alpha and p38 mitogen-activated protein kinase (p38MAPK) in colonic tissue was detected using Western blot, and the levels of occludin and zonula occludens-1 (ZO-1) mRNAs were detected using reverse transcription PCR. RESULTS: Compared with the control group, the intestinal mucosae were incomplete in the model group, glandular structures were irregular, and submucosae were edematous, hyperemic, and infiltrated with inflammatory cells. The DAI scores and expression of TNF-alpha and p38MAPK were increased significantly in the model group compared to controls (Ps < 0.01), while the mRNA levels of occludin and ZO-1 were reduced significantly (Ps < 0.01). Compared with the model group, colonic mucosa and the arrangement of glands were complete and regular in the treatment groups. DAI scores and the expression of TNF-alpha and p38MAPK were reduced significantly in moxibustion groups compared to controls (Ps < 0.01), while the mRNA levels of occludin and ZO-1 were increased significantly (Ps < 0.01). The improvements in the above indices in the three acupoints group and the medication group were superior to those in the single and two acupoints groups (all P < 0.05). CONCLUSION: Reduction of TNF-alpha and p38MAPK and increased expre

关键词： Different acupoints Grain-sized moxibustion Inflammatory factors Intestinal mucosal barrier Ulcerative colitis

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混凝土砌块砂浆与钢筋粘结锚固性能可靠度分析

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混凝土 2006年第2期 28-30页

作者：迟洪艳胡岩辽宁铁岭发电厂辽宁铁岭112000 沈阳建筑大学辽宁沈阳110015

分析了拉拔试验结果考虑砂浆的劈拉强度和相对锚固长度的影响,利用最小二乘法统计回归,得出光圆钢筋的特征强度值的回归公式,并在拉拔试验结果的基础上根据粘结锚固的极限状态方程和可靠度指标进行可靠度分析,验证了《砌体结构设计规范... 详细信息

分析了拉拔试验结果考虑砂浆的劈拉强度和相对锚固长度的影响,利用最小二乘法统计回归,得出光圆钢筋的特征强度值的回归公式,并在拉拔试验结果的基础上根据粘结锚固的极限状态方程和可靠度指标进行可靠度分析,验证了《砌体结构设计规范》GB50003-2001中关于配筋砌块砌体结构灰缝中钢筋锚固长度规定的安全性。最后,提出了钢筋在混凝土砌块砂浆中锚固长度的设计建议,为配筋砌块砌体灰缝中钢筋的锚固长度的确定提供了进一步的可靠依据。

关键词：混凝土砌块砂浆粘结锚固强度锚固长度可靠度指标

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基于Matlab的控制器参数优化方法研究

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煤矿机械 2006年第3期27卷 424-425页

作者：曹贺池红岩黑龙江科技学院哈尔滨150027

针对传统用经验图表和公式整定PID参数计算量较大的不足,介绍了一种将优化理论应用于调节器参数整定中的新方法,使设计计算得以简化,并以算例基于Matlab/Simulink进行仿真分析,验证了方法的有效性。

关键词：调节器优化仿真分析

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强化焊工技术培训过程控制,提高长输管道焊接施工水平

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电焊机 2009年第3期39卷 47-49页

作者：陈建平迟红艳中国石油华北石油工程建设有限公司河北任丘062552

长输管道工程施工中,管材钢级高、规格大,焊口固定、需全位置焊接,一个焊缝大都采用多种焊接材料和不同焊接方法由多名焊工焊接完成,焊接难度大、工艺复杂,质量要求高,对焊工的培训尤其重要。在此介绍了中国石油华北石油工程建设有限公... 详细信息

长输管道工程施工中,管材钢级高、规格大,焊口固定、需全位置焊接,一个焊缝大都采用多种焊接材料和不同焊接方法由多名焊工焊接完成,焊接难度大、工艺复杂,质量要求高,对焊工的培训尤其重要。在此介绍了中国石油华北石油工程建设有限公司在长输管道焊工技术培训过程中的做法、经验和体会。

关键词：焊接管道工程焊工培训

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浅析施工项目成本控制

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大坝与安全 2011年第2期25卷 54-56,62页

作者：池蕻艳中铁六局集团呼和浩特铁建公司内蒙古呼和浩特010050

随着我国各行业的国际化,建筑领域的竞争也日趋激烈,施工企业必须采取措施来降低项目支出,成本控制成为项目管理工作的重中之重。本文从施工项目成本控制的现状入手,分析了施工成本控制过程中存在的不足,并有针对性地提出了对应的改进... 详细信息

随着我国各行业的国际化,建筑领域的竞争也日趋激烈,施工企业必须采取措施来降低项目支出,成本控制成为项目管理工作的重中之重。本文从施工项目成本控制的现状入手,分析了施工成本控制过程中存在的不足,并有针对性地提出了对应的改进建议和方法,供参考。

关键词：施工项目成本控制

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2D CaWO4 nanosheets derived from scheelite minerals for enhanced electrocatalysis in oxygen evolution reaction

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Science china Chemistry 2025年

作者： Qing Sun Yongxiang Sun yan Dong hong Zhong hongbo Zeng National&Local United Engineering Laboratory for New Petrochemical Materials&Fine Utilization of Resources College of Chemistry and Chemical EngineeringHunan Normal University Department of Chemical and Materials Engineering University of Alberta College of Chemistry and Materials Engineering Hunan University of Arts and Science College of Chemistry and Chemical Engineering Central South University

Scheelite （CaWO4） mineral holds promise as a cost-effective and efficient catalyst for the oxygen evolution reaction （OER）crucial in renewable energy ***,challenges such as limited active site exposure and low electrocatalytic performance need *** this work,we have fabricated two-dimensional （2D） CaWO4nanosheets from scheelite minerals via a straightforward ultrasonic exfoliation method and evaluated their efficacy as OER *** to scheelite powders,these 2D nanosheets exhibited superior crystallinity and a 1.26-fold increase in electrochemical surface area,promoting active site *** 2D CaWO4nanosheet electrode demonstrated outstanding OER catalytic performance,achieving a current density of 20 mA/cm2at an overpotential of 290 m V in alkaline conditions,which was lower than that of bulk CaWO4electrodes （～340 mV）.Density functional theory calculations attributed this enhanced catalytic performance to moderate adsorption of oxygenated intermediates （*OH,*O,and*OOH） on the W sites of 2D *** situ electrochemical atomic force microscopy tests also confirmed the catalytic enhancement by 2D CaWO4nanosheets during *** findings demonstrate the potential of affordable and abundant mineral resources in advancing electrochemical catalysts for oxygen evolution,highlighting their broader application in sustainable energy technologies.

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认购碳汇替代性修复责任适用优化路径研究

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黑龙江生态工程职业学院学报 2024年第6期37卷 12-15,55页

作者：迟鸿艳山东科技大学山东青岛266499

认购碳汇是我国法院贯彻司法能动精神将环境保护与环境司法相结合的替代性修复责任新模式。为保障这一新模式的高效运行,应明确其所依据的法律规范及其理论基础为其适用提供正当性支撑,并从司法实践适用的角度出发,归纳认购碳汇的适用... 详细信息

认购碳汇是我国法院贯彻司法能动精神将环境保护与环境司法相结合的替代性修复责任新模式。为保障这一新模式的高效运行,应明确其所依据的法律规范及其理论基础为其适用提供正当性支撑,并从司法实践适用的角度出发,归纳认购碳汇的适用要件。在此基础上提出优化建议:统一规范碳汇损失的核算方法与标准;优化碳汇市场交易规则;强化认购碳汇的监督机制。冀通过这些措施的实施进一步完善认购碳汇机制,为生态环境保护贡献司法力量。

关键词：认购碳汇修复责任替代性修复责任优化路径

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Discovery of a new family member of arsenic–vanadium polyoxometalates with high catalytic performance for one-pot coupling of CO2, epoxides and amines

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Tungsten 2025年第1期7卷 80-87页

作者： Fang-Qian Wang Yin Zhang Wei-Wei Wang Mei-Qian Fu hong-Bing Mo Wei-Dong Yu Chao Liu Jun yan College of Chemistry and Chemical Engineering Central South University Junior Education Department Changsha Normal University School of Science Hunan University of Technology and Business

Arsenic-vanadium polyoxometalates（POMs） represent a family of tremendous potential catalysts owing to their peculiar physical and chemical *** in CO2conversion,using POMs to catalyze the conversion of CO2and epoxide into chemical intermediates is the research ***,A new family number of arsenic-vanadium POMs,[N（CH3）4]4[As8V12O38（H2O）]·2H2O({As8V12O38}),was reported and characterized by single-crystal X-ray diffraction,fourier transform infrared spectroscopy,X-ray photoelectron spectroscopy,*** from other allotropicity,{As8V12O38}shows a different structure pattern with an I-43d *** obtained {As8V12O38} was employed as a catalyst for the *** initial catalytic reaction confirmed that {As8V12O38} can catalyze the formation of epoxy carbonate by using 1.01 kPa CO2and epoxide at 70℃.Furtherly,when added amine in the catalytic system,oxazolidinone could be obtained by high yields,which provides an efficient way to convert CO2into profitable ***,a possible catalytic reaction mechanism was proposed by using different characterization analyses.{As8V12O38} first catalyzes the epoxide and CO2to form an epoxy carbonate and then catalyzes epoxy carbonate and benzylamine into oxazolidinone.

关键词： Arsenic CO2 conversion Oxazolidinone Polyoxometalates Vanadium

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基于改进的FAHP评价法对桥梁施工质量评价

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土木工程与管理学报 2017年第1期34卷 44-48页

作者：郭月红石艳迟许有俊内蒙古科技大学土木工程学院内蒙古包头014010

基于传统的FAHP评价法对桥梁施工质量进行评价时,隶属度矩阵通常是由隶属度函数法来确定的;但是,目前并没有一种科学合理的方法确定隶属度函数,多是由专家在其经验的基础上确定,从而导致评价结果带有一定的主观性。为了使评价结果真实... 详细信息

基于传统的FAHP评价法对桥梁施工质量进行评价时,隶属度矩阵通常是由隶属度函数法来确定的;但是,目前并没有一种科学合理的方法确定隶属度函数,多是由专家在其经验的基础上确定,从而导致评价结果带有一定的主观性。为了使评价结果真实地反映实际情况,在FAHP评价法的基础上,提出"比例法"来代替隶属度函数法确定隶属度矩阵,并以实际工程为案例进行验证,评价结果表明:"比例法"是以实际检测结果为基础,构造的隶属度矩阵与桥梁施工质量的真实状况相符,消除了隶属度函数法给评价结果带来的主观性;同时对评价结果进行分析,指出桥梁施工过程中存在的缺陷及安全隐患,并给出一些可行性建议及措施,对桥梁施工及后期管养有一定的指导作用。

关键词：施工质量隶属度矩阵比例法主观性安全隐患

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Deciphering Water Oxidation Catalysts:The Dominant Role of Surface Chemistry over Reconstruction Degree in Activity Promotion

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Nano-Micro Letters 2025年第3期17卷 340-354页

作者： Li An Jianyi Li Yuanmiao Sun Jiamin Zhu Justin Zhu Yeow Seow hong Zhang Nan Zhang Pinxian Xi * Zhichuan JXu Chun‑Hua yan State Key Laboratory of Applied Organic Chemistry Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu ProvinceFrontiers Science Center for Rare IsotopesCollege of Chemistry and Chemical EngineeringLanzhou UniversityLanzhou 730000People’s Republic of China School of Materials Science and Engineering Nanyang Technological UniversitySingapore 639798Singapore Faculty of Materials Science and Energy Engineering Institute of Technology for Carbon NeutralityShenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhen 518055People’s Republic of China Key Laboratory of Electromagnetic Materials and Devices National Center for International Research On Photoelectric and Energy MaterialsSchool of Materials and EnergyElectron Microscopy CenterYunnan UniversityKunming 650091People’s Republic of China State Key Laboratory of Baiyunobo Rare Earth Resource Researches and Comprehensive Utilization Baotou Research Institute of Rare EarthsBaotou 014030People’s Republic of China Beijing National Laboratory for Molecular Sciences State Key Laboratory of Rare Earth Materials Chemistry and ApplicationsPKU‑HKU Joint Laboratory in Rare Earth Materials and Bioinorganic ChemistryPeking UniversityBeijing 100871People’s Republic of China

Water splitting hinges crucially on the availability of electrocatalysts for the oxygen evolution *** surface reconstruction has been widely observed in perovskite catalysts,and the reconstruction degree has been often correlated with the activity ***,a systematic study on the roles of Fe substitution in activation of perovskite LaNiO_(3)is *** substituting Fe content influences both current change tendency and surface reconstruction ***_(0.9)Fe_(0.1)O_(3)is found exhibiting a volcano-peak intrinsic activity in both pristine and reconstructed among all substituted perovskites in the LaNi_(1-x)Fe_(x)O_(3)(x=0.00,0.10,0.25,0.50,0.75,1.00)*** reconstructed LaNi_(0.9)Fe_(0.1)O_(3)shows a higher intrinsic activity than most reported NiFe-based ***,density functional theory calculations reveal that Fe substitution can lower the O 2p level,which thus stabilize lattice oxygen in LaNi0.9Fe0.1O3 and ensure its long-term ***,it is vital interesting that activity of the reconstructed catalysts relied more on the surface chemistry rather than the reconstruction *** effect of Fe on the degree of surface reconstruction of the perovskite is decoupled from that on its activity enhancement after surface *** finding showcases the importance to customize the surface chemistry of reconstructed catalysts for water oxidation.

关键词： Oxygen evolution reaction Perovskite oxides Doping Activation and reconstruction

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