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Composition control and temperature inferential control of dividing wall column based on model predictive control and PI strategies

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Chinese Journal of Chemical Engineering 2018年第5期26卷 1087-1101页

作者： Jianxin Wang na yu Mengqi Chen Lin Cong Lanyi Sun State Key Laboratory of Heavy Oil Processing College of Chemical Engineering China University of Petroleum (East China) College of Information and Control Engineering China University of Petroleum (East China)

The dividing wall column （DWC） is considered as a major breakthrough in distillation technology and has good prospect of industrialization. Model predictive control （MPC） is an advanced control strategy that has acquired extensive applications in various industries. In this study, MPC is applied to the process for separating ethanol, n-propanol, and n-butanol ternary mixture in a fully thermally coupled DWC. Both composition control and tem- perature inferent/al control are considered. The multiobjective genetic algor/thm function ＂gamult/obj＂ in Matlab is used for the weight tuning of MPC. Comparisons are made between the control performances of MPC and PI strategies. Simulation results show that although both MPC and PI schemes can stabilize the DWC in case of feed disturbances, MPC generally behaves better than the PI strategy for both composition control and tempera- ture inferential control, resulting in a more stable and superior performance with lower values of integral of squared error （ISE）.

关键词： Dividing wall column Composition control Temperature inferential control PI strategy Model predictive control Genetic algorithm

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强震临震微波动现象跟踪实践

中国地震 2024年第2期40卷 295-303页

作者：杨立明王建军张增换余娜李玮杰中国地震局第二监测中心西安710054 中国地震局兰州地震研究所兰州730000 青海省地震局西宁810001

为验证和检验强震临震微波动现象及其主要特征,利用甘肃、青海、四川、云南、西藏等区域台网200余个宽频带数字地震台站的实时波形资料和实时跟踪监控技术系统,对2019—2022年间青藏高原发生的44次5级以上地震进行全程实时跟踪及动态监... 详细信息

为验证和检验强震临震微波动现象及其主要特征,利用甘肃、青海、四川、云南、西藏等区域台网200余个宽频带数字地震台站的实时波形资料和实时跟踪监控技术系统,对2019—2022年间青藏高原发生的44次5级以上地震进行全程实时跟踪及动态监控,进一步检验临震微波动现象的重现性和客观性,验证了临震微波动现象的频谱、时间、空间等特征。

关键词：临震微波动现象预报时空指标验证

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非遗柳编工艺在家居产品设计中的应用

家具 2024年第2期45卷 44-48页

作者：于娜王军刘峰徐治合南京林业大学家居与工业设计学院南京210037 安徽宜飞思工业设计有限公司阜阳236000 阜阳市轻工工艺品进出口企业协会阜阳236000

柳编工艺作为非物质文化遗产之一,象征着国家和民族基因,随着市场日新月异的发展及消费者对绿色宜家产品的多样性追求,柳编工艺在家居产品设计中的应用更为广泛。通过调研柳编工艺,分析柳编家居产品应用现状及产品类型,总结柳编家居产... 详细信息

柳编工艺作为非物质文化遗产之一,象征着国家和民族基因,随着市场日新月异的发展及消费者对绿色宜家产品的多样性追求,柳编工艺在家居产品设计中的应用更为广泛。通过调研柳编工艺,分析柳编家居产品应用现状及产品类型,总结柳编家居产品特点及设计应用,提出柳编家居产品创新应用思路,并以此为设计要点进行柳编工艺在家居产品中的创新设计,实现柳编产品在造型风格上的突破,拓宽柳编应用范围,为柳编家居产品在当今市场中的活态传承与发展提供借鉴。

关键词：非遗文化柳编工艺家居设计设计应用

新文科背景下“文工并重”新型教育模式探析——基于经济工程专业实践

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应用型高等教育研究 2024年第2期9卷 1-6,14页

作者：陈江华于娜吴应宁合肥大学经济与管理学院合肥230601

学科交叉、推动跨学科建设正成为当前学科改革发展的重要方向之一。合肥大学经济工程专业打破传统经济学同质同构发展定势,开创文工并重新文科理念,坚持学科协同创新思维,创新“文工并重”人才培养模式,构建“文工并重”的课程模块体系... 详细信息

学科交叉、推动跨学科建设正成为当前学科改革发展的重要方向之一。合肥大学经济工程专业打破传统经济学同质同构发展定势,开创文工并重新文科理念,坚持学科协同创新思维,创新“文工并重”人才培养模式,构建“文工并重”的课程模块体系,建设“文工并重”教学管理机制,健全“文工并重”多元保障体系,培养跨学科复合型应用型人才。由于开设时间较短,专业建设也面临实践教学深度不够、学科建设实力不强、师资团队配置不足、跨校企合作有待强化等问题。未来,应坚持树立学科并重的跨学科教育理念、构建做实校企合作人才培养模式、开发“文工并重”跨学科复合型课程、健全资金师资教材立体保障体系,逐步重构新型的跨学科教育模式。

关键词：文工并重跨学科经济工程

去卵巢骨质疏松大鼠腹腔注射白藜芦醇及雌二醇的效果评价

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中国骨质疏松杂志 2024年第2期30卷 222-227页

作者：黄燕李钰娜宋丽华牛晓红冀菁荃李卿长治医学院基础医学部生化教研室山西长治046000 运城护理职业学院山西运城044000 长治医学院附属和济医院内分泌科山西长治046000 长治医学院基础医学部病生教研室山西长治046000

目的评价腹腔注射白藜芦醇(resveratrol,RSV)、雌二醇(estradiol,E)抗绝经后骨质疏松症的效果,为白藜芦醇作为潜在辅助性治疗药物提供依据。方法将大鼠随机分为正常组、假手术(Sham)组、去卵巢(OVX)组、OVX+RSV组、OVX+雌二醇(OVX+E)组... 详细信息

目的评价腹腔注射白藜芦醇(resveratrol,RSV)、雌二醇(estradiol,E)抗绝经后骨质疏松症的效果,为白藜芦醇作为潜在辅助性治疗药物提供依据。方法将大鼠随机分为正常组、假手术(Sham)组、去卵巢(OVX)组、OVX+RSV组、OVX+雌二醇(OVX+E)组,每组10只。OVX+RSV组腹腔注射RSV[10 mg/(kg·d)],OVX+E组腹腔注射β-雌二醇[0.1 mg/(kg·d)]。Sham组和OVX组注射生理盐水,连用12周。每4周进行全身双能X线测量分析,收集骨密度、体脂率及肌肉含量等数据。12周后,收集心脏、肝脏、胰腺、肾脏等相关数据,计算脏器系数;收集血清,测定尿素氮及肌酐水平;收集两侧股骨,分别行HE及Goldner染色。结果DXA结果显示,白藜芦醇可有效防止骨密度的降低,同时保持与正常组一致的体脂率与肌肉含量,其效果与雌激素相当。脏器系数结果显示,除白藜芦醇组肾脏系数显著降低外,肝脏、胰腺及心脏系数各组之间无显著性差异。与正常组及去卵巢组相比,白藜芦醇组大鼠空腹血清尿素氮和肌酐水平均显著降低,雌激素组肌酐水平显著降低。右侧股骨HE染色显示白藜芦醇组与雌激素组较去卵巢组的骨小梁结构均有改善,并且RSV干预后骨小梁数量和小梁间的连接改善更为明显。左侧股骨Goldner染色结果同样显示,OVX+RSV组股骨小梁数量和小梁厚度显著增加,骨小梁分离度显著降低。结论本研究结果显示RSV的抗骨质疏松作用与雌二醇相当,且未观察到对肝、肾、胰腺及心脏明显的毒副作用,此结果可为其作为临床辅助性用药提供依据。

关键词：白藜芦醇雌二醇绝经后骨质疏松症腹腔注射

Effect of captopril on serum TNF-α level in acute lung injury rats induced by HCL

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Asian Pacific Journal of Tropical Medicine 2014年第11期7卷 905-908页

作者： Hong-Mei Liu yu-na Guo Tangshang Clinical College of Hebei Medical University Pain Clinics Xuanwu Hospital Capital Medical University

Objective:To observe the effect of captopril on the tumor necrosis factor-α(TNF- α) level and arterial blood gases in acute lung injury(All) induced by HCL in rats,and to analyze its protective ***:Fifty Wistar rats were selected and randomly divided into three groups,with 20 rats in Group Ⅰ and Ⅱ,respectively and 10 animals in Group Ⅲ.ALI model was constructed by intratracheal injection of diluted hydrochloric acid(pH=1.***.1.2 mL/kg).Group Ⅰrats received not any treatment after construction of AM *** Ⅱ rats were treated with captopril(5 mg/kg,i.p.) 5 min after induction of *** Ⅲ served as normal control without any *** minutes after construction of ALI model,all the rats were *** was withdrawn for detection of TNF- α level and arterial blood gases *** lung tissue slices of the three groups were prepared for observation of pathologic histology ***:TNF- α level in serum of Group Ⅰ and Ⅱ rats was significantly higher than that in Group Ⅲ(P<0.05),while TNF- α level in serum of Group Ⅱ was significantly lower in Group Ⅰ(P<0.05).PaCO_2 level was significantly higher(P<0.05),while PaO_2 was significantly lower(P<0.05) in Group Ⅰ and Ⅱ rats than those in Group Ⅲ.PaCO_2 was significantly lower(P<0.05) and PaO_2 was significantly higher(P<0.05) in Group Ⅱ than those in Group Ⅰ.Histological observation showed diffuse congestion and severe edema of luug tissue,obvious thickening and structure damage of alveolar walls and a large amount of neutrophil infiltration in Group Ⅰ *** Ⅱ rats showed mild edema of lung tissue;only a small portion of alveolar walls showed thickening and only a few of neutrophil infiltration could be *** degree of injury was remarkably slighter than that of Group Ⅰ *** Ⅲ rats showed clear lung tissue structure and normal morphology:alveolar walls were uniform and the margin was smooth and few neutrophil could be ***:Captopril can significantly r

关键词： Captopril Acute lung injury TNF-α Lung function

Two new prenylflavonoids from Epimedium sutchuenense

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Chinese Chemical Letters 2009年第7期20卷 842-844页

作者： Chang yuan yu Li na Song Guang Chen College of Life Science and Technology Beijing University of Chemical Technology Beijing 100029 China

Two new prenylflavonoids, named sutchuenmedin A （1） and sutchuenmedin B （2）, were isolated from the 70% EtOH extract of Epimedium sutchuenense. Their structures were determined from spectral analysis. C 2009 Guang... 详细信息

关键词： Epimedium sutchuenense Flavonoids Sutchuenmedin A Sutchuenmedin B

Dynamical Casimir effect in dissipative superconducting circuit system

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Science China(Physics,Mechanics & Astronomy) 2014年第12期57卷 2251-2258页

作者： ZHANG yu na LUO Xi Wang ZHOU Zheng Wei Key Laboratory of Quantum Information University of Science and Technology of China Synergetic Innovation Center of Quantum Information and Quantum Physics University of Science and Technology of China

We investigate the possibility of observing in integrated solid-state systems the dynamical Casimir effect,in which photons are created out of *** use a transmission line resonator on a superconducting chip as the microwave cavity and modulate its properties by coupling it to carefully designed Josephson *** evaluate the effect of main decoherence sources and show that our design offers a promising system for experimentally demonstrating the dynamical Casimir ***,we also study the squeezing properties of the created photon field and how they depend on the dissipation.

关键词： dynamical Casimir effect superconducting circuit system dissipation squeezing

QUANTITATIVE FRET MEASUREMENT BASED ON CONFOCAL MICROSCOPY IMAGING AND PARTIAL ACCEPTOR PHOTOBLEACHING

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Journal of Innovative Optical Health Sciences 2012年第3期5卷 21-27页

作者： XIAO-PING WANG HUAI-na yu TONG-SHENG CHEN Department of Anesthesiology The First A±liated Hospital of Jinan University Guangzhou 510632 P.R.China MOE Key Laboratory of Laser Life Science and Institute of Laser Life Science College of Biophotonics South China Normal University Guangzhou 510631 P.R.China

Fluorescence resonance energy transfer(FRET)technology had been widely used to study proteinprotein interactions in living *** this study,we developed a ROI-PbFRET method to real-time quantitate the FRET efficiency of FRET construct in living cells by combining the region of interest(ROI)function of confocal microscope and partial acceptor *** validated the ROI-PbFRET method using GFPs-based FRET constructs including 18AA and SCAT3,and used it to quantitatively monitor the dynamics of caspase-3 activation in single live cells stably expressing SCAT3 during staurosporine(STS)-induced *** results for thefirst demonstrate that ROI-PbFRET method is a powerful potential tool for detecting the dynamics of molecular interactions in live cells.

关键词： Fluorescence resonance energy transfer(FRET) partial acceptor photobleaching caspase-3 living cells