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Two-dimensional correlation spectroscopic studies on coordination between carbonyl group of butanone and metal ions

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Chinese Chemical Letters 2015年第2期26卷 177-181页

作者： Dan-Qing Gao Xiao-Pei Li Jia-Jia Shi Xiao-Yan Kang Ting-Guo Kang Jin-Ming Xia Xiao-Feng Ling Shi-Fu Weng Yi-zhuang xu Isao Noda Jin-Guang Wu School of Postgraduate Liaoning University of Traditional Chinese Medicine College of Chemistry and Molecular Engineering Peking University Institute of Process Engineering and Chinese Academy of Sciences College of Chemistry and Materials Hebei Normal University Two Five Eight Health Technology Co. Ltd The Third School of Clinical Medicine of Peking University Ninghai Doubly Advanced Material Co. Ltd Department of Materials Science and Engineering University of Delaware

Two dimensional asynchronous spectra were used to characterize coordination between carbonyl group of butanone and metal ions by using an approach proposed in our recent *** variation of n-π^＊transition band of carbonyl group is used to probe the coordination even if metal ions does not possess any characteristic peak in *** results indicate that Ca^2＋ and Al^3＋ show considerable ability to coordinate with the carbonyl group of butanone and bring about spectral variation of the n-π-＊transition band,which is manifested by cross peaks in 2D asynchronous spectra.

关键词： Ca^2+ Al^3+ Butanone Coordination 2D correlation spectroscopy

基于随机森林的火电机组SCR脱硝反应器建模

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动力工程学报 2020年第6期40卷 486-491,501页

作者：许壮康英伟上海电力大学自动化工程学院上海200090

火电机组选择性催化还原技术(SCR)脱硝反应器过程复杂多变,采用机理建模的SCR脱硝反应器出口NO_x质量浓度预测难以取得良好的效果。基于火电厂的历史运行数据,将主成分分析(PCA)和随机森林(RF)相结合建立了SCR脱硝反应器出口NO_x质量浓... 详细信息

火电机组选择性催化还原技术(SCR)脱硝反应器过程复杂多变,采用机理建模的SCR脱硝反应器出口NO_x质量浓度预测难以取得良好的效果。基于火电厂的历史运行数据,将主成分分析(PCA)和随机森林(RF)相结合建立了SCR脱硝反应器出口NO_x质量浓度预测模型。在建模过程中,采用主成分分析方法计算各个变量的贡献率来筛选变量,进而对随机森林模型进行试验验证,并与支持向量机(SVM)模型和BP神经网络模型的预测性能进行对比。结果表明:采用PCA变量选择方法确定SCR系统模型的输入变量是可行和有效的;与SVM和BP神经网络模型相比,RF算法得到的SCR系统模型具有更好的预测效果。

关键词： SCR脱硝反应器预测模型主成分分析随机森林性能对比

Computed tomography perfusion study of hemodynamic changes and portal hyperperfusion in a rabbit model of small-for-size liver

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Hepatobiliary & Pancreatic Diseases International 2012年第1期11卷 74-80页

作者： Zhi-Guo zhuang,Jian-Rong xu,Li-Jun Qian,Qiang Xia and Jia-Chang Chi Department of Radiology,and Center of Transplantation,Renji Hospital,Shanghai Jiaotong University School of Medicine,Shanghai 200127,China Department of Radiology Shanghai Jiaotong University School of Medicine Shanghai 200127 Shanghai China Center of Transplantation Renji Hospital Shanghai Jiaotong University School of Medicine Shanghai 200127 Shanghai China

BACKGROUND:Portal hyperperfusion in the small-for-size (SFS) liver can threaten survival of ***,it is important to understand the hemodynamic changes in the SFS ***:Twenty rabbits were divided into two groups:a control group and a modulation *** control group underwent an extended *** modulation group underwent the same procedure plus splenectomy to reduce portal blood *** perfusion examinations were performed on all rabbits before and after *** parameter values,especially portal vein perfusion (PVP),were ***:PVP in the modulation group was lower than in the control group after operation (P=0.002).In the control group,postoperative PVP increased by 193.7±55.1% compared with preoperative PVP.A weak correlation was found between the increased percentage of PVP and resected liver-to-body weight ratio (RLBWR) (r=0.465,P=0.033).In the modulation group,postoperative PVP increased by 101.4±32.5%.No correlation was found between the increased percentage of PVP and RLBWR (r=0.167,P=0.644).Correlations were found between PVP and serum alanine aminotransferase,aspartate aminotransferase,and total bilirubin after surgery (P<0.05).CONCLUSION:We successfully evaluated the characteristics of hemodynamic changes as well as the effects of splenectomy in the SFS liver in rabbits by the CT technique.

关键词： computed tomography perfusion portal vein perfusion hemodynamics hepatectomy small-for-size liver

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黑龙江高纬寒地饲草产业现状与展望

现代畜牧科技 2024年第5期 53-56页

作者：王建丽牟林林庄煦尤佳张冬梅李佶恺邸桂俐申忠宝韩微波黑龙江省农业科学院草业研究所黑龙江哈尔滨150086 黑龙江省农业科学院经济作物研究所黑龙江哈尔滨150086

随着草食性家畜养殖规模的不断扩大,对高品质饲草的需求也日益增长。在黑龙江寒地地区,饲草产业的发展现状及其面临的挑战更是引起了广泛关注。该文深入分析黑龙江寒地饲草产业的现状、存在的问题,并在此基础上提出针对性的发展对策,以... 详细信息

随着草食性家畜养殖规模的不断扩大,对高品质饲草的需求也日益增长。在黑龙江寒地地区,饲草产业的发展现状及其面临的挑战更是引起了广泛关注。该文深入分析黑龙江寒地饲草产业的现状、存在的问题,并在此基础上提出针对性的发展对策,以期通过全面梳理和探讨,为推动黑龙江乃至更广泛寒地地区饲草产业的可持续发展贡献智慧和力量。

关键词：饲草产业现状问题发展

Feasibility analysis of hypergravity experiment of density-driven convection of dissolved CO

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Journal of Earth Science 2024年

作者： Ruiqi Chen Wenjie xu Yingtao Hu Yunmin Chen Jinlong Li Duanyang zhuang Center for Hypergravity Experimental and Interdisciplinary Research， Zhejiang University MOE Key Laboratory of Soft Soils and Geoenvironmental Engineering， Zhejiang University School of Engineering， Hangzhou City University

Dissolution trapping is one of the most promising mechanisms for safe geological carbon storage. Density-driven convection substantially accelerates the conversion of free-phase CO2to the dissolved state， enhancing the sequestration safety. Since this process occurs on time scales of hundreds to thousands of years， reproducing it through conventional laboratory physical model tests is challenging. The hypergravity experiment reduces the model size and shortens the experimental time， enabling the modeling of gravity-driven flow processes at the field scale. However， it is uncertain whether the preferential flow effect caused by fractures can be reproduced in a hypergravity experiment. In this study， a three-dimensional discrete fracture-matrix model （3D-DFM） was used to evaluate the feasibility of hypergravity experiment of the transport of dissolved CO2in fractured *** hypergravity tests were performed to examine the feasibility of modeling density-driven convection in homogeneous and heterogeneous media at different centrifuge accelerations. The hypergravity experiment can be used to study density-driven convection of dissolved CO2at the field scale in homogeneous system. The numerical results show that the hypergravity experiment enables a faster breakthrough of plume and overestimates CO2migration in the matrix surrounding the fractures.

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聚丙烯中试装置DCS存在的问题及升级优化

广州化工 2024年第6期52卷 183-186页

作者：马文辉周天达慕雪梅竺栋荣张保生庄旭卢晓玮杨林中国石油石油化工研究院兰州化工研究中心甘肃兰州710060

介绍并分析了中国石油聚丙烯中试装置DCS系统升级改造的原因和问题,聚丙烯中试装置DCS控制系统新旧软硬件版本不兼容切长年带电工作,硬件老化严重,服务器和操作站响应慢、卡顿,对于旧版硬件系统,厂家已停止提供备件支持,影响装置的安全... 详细信息

介绍并分析了中国石油聚丙烯中试装置DCS系统升级改造的原因和问题,聚丙烯中试装置DCS控制系统新旧软硬件版本不兼容切长年带电工作,硬件老化严重,服务器和操作站响应慢、卡顿,对于旧版硬件系统,厂家已停止提供备件支持,影响装置的安全、稳定、长周期运行,针对存在的问题提出了DCS升级改造方案,通过硬件和软件升级提高了DCS控制系统的操作稳定性和运行效率。

关键词： Honeywell DCS系统升级改造优化

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浅析黑龙江省大豆根腐病研究现状

大豆科技 2024年第2期 29-34页

作者：朱治佳袁明韩冬伟张笛王振孙浩月王淑荣王连霞庄煦张婵娟黑龙江省农业科学院齐齐哈尔分院黑龙江齐齐哈尔161006 黑龙江省农业科学院草业研究所哈尔滨150086 黄山学院安徽黄山245041

大豆根腐病为大豆主要病害之一,具有发病范围广、卵孢子存活时间长、危害重等特点,严重制约黑龙江省大豆产业发展。为提高黑龙江省大豆根腐病防控技术水平,文章综述黑龙江省大豆根腐病致病菌种类及分布、发病症状及特点、抗病品种鉴定... 详细信息

大豆根腐病为大豆主要病害之一,具有发病范围广、卵孢子存活时间长、危害重等特点,严重制约黑龙江省大豆产业发展。为提高黑龙江省大豆根腐病防控技术水平,文章综述黑龙江省大豆根腐病致病菌种类及分布、发病症状及特点、抗病品种鉴定及防治措施,以期为黑龙江省大豆根腐病防治及研究提供理论依据,助力黑龙江省大豆产业振兴。

关键词：大豆根腐病发病症状致病菌种类防治措施

Antibody-platinum(IV)prodrugs conjugates for targeted treatment of cutaneous squamous cell carcinoma

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Journal of Pharmaceutical Analysis 2024年第3期14卷 389-400页

作者： Xiangye Yin Yingjie zhuang Haiqin Song Yujian xu Fan Zhang Jianxin Cui Lei Zhao Yingjie Yu Qixu Zhang Jun Ye Youbai Chen Yan Han Department of Plastic and Reconstructive Surgery The First Medical CenterChinese PLA General HospitalBeijing100853China Department of General Surgery Ruijin HospitalShanghai Jiao Tong University School of MedicineShanghai200023China State Key Laboratory of Organic-Inorganic Composites Beijing Laboratory of Biomedical MaterialsBeijing University of Chemical TechnologyBeijing100029China Department of Plastic Surgery University of Texas MD Anderson Cancer CenterHoustonTX77030USA State Key Laboratory of Bioactive Substance and Function of Natural Medicines Institute of Materia MedicaChinese Academy of Medical Sciences&Peking Union Medical CollegeBeijing100050China

Antibody-drug conjugates(ADCs)are a new type of targeting antibodies that conjugate with highly toxic anticancer drugs via chemical linkers to exert high specificity and efficient killing of tumor cells,thereby attracting considerable attention in precise oncology ***(Cet)is a typical antibody that offers the benefits of good targeting and safety for individuals with advanced and inoperable cutaneous squamous cell carcinoma(cSCC);however,its anti-tumor activity is limited to a single ***(CisPt)shows good curative effects;however,its adverse effects and non-tumor-targeting ability are major *** this study,we designed and developed a new ADC based on a new cytotoxic platinum(IV)prodrug(C8Pt(IV))and *** so-called antibody-platinum(IV)prodrugs conjugates,named Cet-C8Pt(IV),showed excellent tumor targeting in ***,it accurately delivered C8Pt(IV)into tumor cells to exert the combined anti-tumor effect of Cet and ***,metabolomic analysis showed that Cet-C8Pt(IV)promoted cellular apoptosis and increased DNA damage in cSCC cells by affecting the vitamin B6 metabolic pathway in tumor cells,thereby further enhancing the tumor-killing ability and providing a new strategy for clinical cancer treatment using antibody-platinum(IV)prodrugs conjugates.

关键词： Antibody drug conjugate Cutaneous squamous cell carcinoma DNA damage Platinum drug Targeted therapy

监察体制改革背景下“两委”合署办公问题研究

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河南社会科学 2019年第2期27卷 27-33页

作者：蒙慧胥壮壮兰州大学马克思主义学院甘肃兰州730000

随着监察体制改革启动,各级监察委员会成立,并与各级纪律检查委员会以合署办公形式开展工作。这虽然提高了效率,但由于监察委员会职能、地位的变化,必然在组织人事、办案程序以及监督方式等方面出现新的问题。文章首先分析了"两委"合署... 详细信息

随着监察体制改革启动,各级监察委员会成立,并与各级纪律检查委员会以合署办公形式开展工作。这虽然提高了效率,但由于监察委员会职能、地位的变化,必然在组织人事、办案程序以及监督方式等方面出现新的问题。文章首先分析了"两委"合署办公所产生的问题,其次,梳理了各地在监察体制改革实践中对新出现问题所进行的有益探索以及存在的问题。在此基础上,提出修订或废止相关党内法规及法律、在纪委监委组织机构内部设置统筹管理机制、构建"纪法衔接"合理模式以及形成不同监督方式下的党内监督与国家监察合力等建议。

关键词：监察体制改革 “两委” 合署办公监督