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Chinese Journal of Chemical Engineering 2024年第6期70卷 269-279页

作者： Shuyi Shen Song Guo Sining chen jinhua Zhao Nanjing University of Science&Technology Nanjing 210094China China Academy of Safety Science and Technology Beijing 100012China

Recently,azobenzene-4,4'-dicarboxylic acid(ADCA)has been produced gradually for use as an organic synthesis or pharmaceutical intermediate due to its eminent *** large quantities put into application in the future,the thermal stability of this substance during storage,transportation,and use will become quite ***,in this work,the thermal decomposition behavior,thermal decomposition kinetics,and thermal hazard of ADCA were *** were conducted by using a SENSYS evo DSC device.A combination of differential iso-conversion method,compensation parameter method,and nonlinear fitting evaluation were also used to analyze thermal kinetics and mechanism of ADCA *** results show that when conversion rate α increases,the activation energies of ADCA's first and main decomposition peaks *** amount of heat released during decomposition varies between 182.46 and 231.16 J·g^(-1).The proposed kinetic equation is based on the Avrami-Erofeev model,which is consistent with the decomposition *** the Frank-Kamenetskii model,a calculated self-accelerating decomposition temperature of 287.0℃is obtained.

关键词： Azobenzene-4,4′-dicarboxylic acid Thermal decomposition behavior Kinetic mechanism Thermal hazard evaluation Compensation parameter effect

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粉煤灰再生混凝土配筋梁的受弯性能研究

混凝土与水泥制品 2024年第8期 75-78,83页

作者：陈晋华周娉婷林爱萍张杰福建船政交通职业学院土木工程学院福建福州350007 福建工大岩土工程研究所有限公司福建福州350002

研究了再生粗骨料取代率(0、30%、60%、100%)对粉煤灰混凝土基本力学性能的影响,并设计制作了4根相同配筋率的试验梁,分析了其受弯破坏情况。结果表明:随着再生粗骨料取代率的增加,粉煤灰混凝土的抗压强度、劈裂抗拉强度、轴心抗压强度... 详细信息

研究了再生粗骨料取代率(0、30%、60%、100%)对粉煤灰混凝土基本力学性能的影响,并设计制作了4根相同配筋率的试验梁,分析了其受弯破坏情况。结果表明:随着再生粗骨料取代率的增加,粉煤灰混凝土的抗压强度、劈裂抗拉强度、轴心抗压强度和弹性模量均先增大后减小;粉煤灰再生混凝土试验梁的正截面应变服从平截面假定,随着再生粗骨料取代率的增加,试验梁的延性和开裂荷载基本呈降低趋势,裂缝数量、裂缝最大宽度和屈服荷载均先增大后减小,极限荷载呈先增大后减小再增大的趋势。

关键词：粉煤灰再生混凝土基本力学性能受弯性能极限承载力裂缝特征

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综合干预措施在围术期老年髋部骨折患者术后谵妄发生的应用效果观察

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智慧健康 2024年第6期10卷 186-189页

作者：缪荣荣刘俊陈金花吴晓妹如皋博爱医院江苏如皋226500

目的探讨综合干预措施在围术期老年髋部骨折患者术后谵妄发生的应用效果观察。方法将2022年5月—2023年5月在本院骨科手术治疗的74例老年髋部骨折患者根据围术期不同护理方式分为两组,对照组实施常规护理,观察组实施综合干预措施,对... 详细信息

目的探讨综合干预措施在围术期老年髋部骨折患者术后谵妄发生的应用效果观察。方法将2022年5月—2023年5月在本院骨科手术治疗的74例老年髋部骨折患者根据围术期不同护理方式分为两组,对照组实施常规护理,观察组实施综合干预措施,对比两组的谵妄及相关指标、不良反应及并发症情况、术后疼痛情况。结果观察组谵妄发生率明显低于对照组,谵妄持续时间、住院时间明显短于对照组,言语交流异常、行为异常、错觉/幻觉、定向力障碍、精神运动性迟缓等NU-DESC评分明显低于对照组(P0.05)。结论综合干预措施对围术期老年髋部骨折患者有良好护理效果,能明显降低谵妄发生率,缩短谵妄持续时间,减轻术后疼痛感。

关键词：老年髋部骨折围术期综合干预措施谵妄应用效果

SPEECH AT THE PRESS CONFERENCE OF THE INTERNATIONAL CONFERENCE AND EXHIBITION ON PETROLEUM REFINING AND PETROCHEMICAL PROCESSING

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石油学报(石油加工) 1990年第3期 4-6页

作者： Mr.chen jinhua President of SINOPEC

Honored ladies and gentlemen,comrades: Today,July 12,1990,is the seventh anniversary of the founding of the China Petrochemieal Gorporation.I have the privilege and honor to inform you

关键词： SPEECH AT THE PRESS CONFERENCE OF THE INTERNATIONAL CONFERENCE AND EXHIBITION ON PETROLEUM REFINING AND PETROCHEMICAL PROCESSING AT

Longitudial observation of dynamic changes in cortical function and white matter fibrous structure of patients with visual pathway lesions by blood oxygenation level dependent-functional magnetic resonance imaging combined with diffusion tensor imaging

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Neural Regeneration Research 2007年第8期2卷 449-454页

作者： Hui Xiao Ziqian chen Gennian Qian Ping Ni Youqiang Ye jinhua chen Department of MedicalRadiology Fuzhou GeneralHospital of Nanjing MilitaryArea Command of ChinesePLA Fuzhou 350025Fujian Province China

BACKGROUND： Functional magnetic resonance imaging （fMRI） is initially used for visual cortex location. However, the application of fMRI in investigating the development of visual pathway lesions needs to be further observed. OBJECTIVE： This study is to longitudially observe the dynamic changes in cortical function and white matter fibrous structure of patients with visual pathway lesions by blood oxygenation level dependent-functional magnetic resonance imaging （BOLD-fMRI） combined with diffusion tensor imaging （DTI）, and to analyze the characteristics of brain function and structural recombination at convalescent period of lesions. DESIGN： Randomized controlled observation. SETTING： Department of Radiology, the General Hospital of Nanjing Military Area Command of Chinese PLA. PARTICIPANTS： Eight patients with unilateral or bilateral visual disorder caused by visual pathway lesions, who admitted to Department of Radiology, the General Hospital of Nanjing Military Area Command of Chinese PLA from January to September 2006 were involved, and served as experimental subjects. The patients, 6 males and 2 females, were aged 16 - 67 years. They had visual disorder confirmed by clinical examination, i.e. visual pathway lesion, which was further diagnosed by MR or CT. Another 12 subjects generally matching to those patients of experimental group in gender, age and sight, who received health examination in synchronization were involved and served as controls. The subjects had no history of eye diseases. Their binocular visual acuity （or corrected visual acuity） was over 1.0. Both routine examination of ophthalmology and examination of fundus were normal. Informed consents of detected items were obtained from all the subjects. METHODS： Signa Excite HD 1.5T magnetic resonance imaging system with 16 passages （GE Company, USA） and coil with 8 passages were used; brain functional stimulus apparatus （SAV-8800. Meide Company） was used for showing experimental mission. At the early s

关键词： magnetic resonance imaging vision rehabilitation

建筑环境与能源应用工程专业虚拟仿真实验系统建设与示范

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高等建筑教育 2024年第2期33卷 35-41页

作者：陈金华沈雪莲谭力秦子雄重庆大学土木工程学院重庆400044

重庆大学土木工程学院依托国家级实验教学示范中心,对建筑环境与能源应用工程专业空调冷热源系统、大型通风空调系统等成本高、危险性高、周期长的实验内容进行虚拟仿真实验教学系统建设,共建设了空调冷热源系统、空调系统、热水供暖系... 详细信息

重庆大学土木工程学院依托国家级实验教学示范中心,对建筑环境与能源应用工程专业空调冷热源系统、大型通风空调系统等成本高、危险性高、周期长的实验内容进行虚拟仿真实验教学系统建设,共建设了空调冷热源系统、空调系统、热水供暖系统三个综合虚拟仿真实验系统。实验建设紧密围绕建环专业实践教学体系展开,坚持“能实不虚、虚实互补”原则,以培养解决复杂工程问题、具有创新思维、高素质综合型工科人才为目标。实验内容设置综合性的多工况虚拟实验、事故工况实验和科研创新实验,支撑了完整的实验教学过程,并建立了双向评价体系。实验采用Web端在线实验形式,提高实验的便捷性和共享性。2020—2021年,虚拟仿真实验系统除服务本校本科实验教学外,向4个高校超300名学生提供实验教学服务,获得校内外较高评价,产生了良好的示范和社会效益。

关键词：本科教学建环专业虚拟仿真实验系统建设

Correlation between muscular strength and basal nuclei ischemic/hemorrhagic stroke-induced corticospinal tract injury,as detected by diffusion tensor imaging and tractography

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Neural Regeneration Research 2010年第13期5卷 1010-1014页

作者： Shangwen Xu Ziqian chen jinhua chen Youqiang Ye Yuning Lin Ping Ni Hui Xiao Gennian Qian Department of Medical Imaging Fuzhou General Hospital of Nanjing Military Area Command of Chinese PLA Fuzhou 350025 Fujian Province China Statistical Division of Department of Medical Affairs Fuzhou General Hospital of Nanjing Military Area Command of Chinese PLA Fuzhou 350025 Fujian Province China Department of Medical Bioengineering Fuzhou General Hospital of Nanjing Military Area Command of Chinese PLA Fuzhou 350025 Fujian Province China

BACKGROUND： Conventional neuroimaging diagnosis does not assist with the monitoring or evaluation of basal nuclei ischemic and hemorrhagic stroke, or motor functional recovery. Magnetic resonance, diffusion tensor imaging, and diffusion tensor tractography have all been used to observe features of cerebral white matter fibrous structures. In addition, diffusion tensor tractography is the only non-invasive imaging method to display the corticospinal tract in vivo. OBJECTIVE： To evaluate the impairment degree of corticospinal tract induced by basal nuclei ischemic and hemorrhagic stroke through the use of magnetic resonance, diffusion tensor imaging, and diffusion tensor tractography, and to analyze the correlation to muscular strength. DESIGN, TIME AND SETTING： A retrospective case analysis was performed at the Department of Medical Imaging, Neurology and Neurosurgery, Fuzhou General Hospital of Nanjing Military Area Command of Chinese PLA between November 2002 and June 2008. PARTICIPANTS： A total of 15 patients with acute or subacute cerebral ischemic stroke and nine with hemorrhagic stroke in the basal nuclei were selected. METHODS： Magnetic resonance, diffusion tensor imaging, and diffusion tensor tractography results and data were analyzed. Fractional anisotropy and directionally encoded color maps were obtained. Three-dimensional tractography of bilateral corticospinal tract was created, and corticospinal tract integrity was graded. Fractional anisotropy of infarct region and corresponding contralateral normal regions were measured, and hematoma volume in hemorrhagic stroke patients was determined. Hand motor function ability was evaluated using Brunstorm criteria. MAIN OUTCOME MEASURES： Fractional anisotropy of infarct region and corresponding contralateral normal regions; hematoma volume in hemorrhagic stroke patients; correlation between muscular strength and corticospinal tract impairment degree in ischemic stroke and hemorrhagic stroke patients before and a

关键词： ischemic stroke hemorrhagic stroke magnetic resonance diffusion tensor imaging tractography brain injury neural regeneration

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对标工程认证基本要求的毕业生设计选题探索

高等建筑教育 2024年第1期33卷 36-43页

作者：王勇刘猛陈金华肖益民刘勇付祥钊重庆大学土木工程学院重庆400045 重庆大学环境与生态学院重庆400045

毕业设计是本科教育的最后关键环节,对学生就业创业能力的形成有重要作用。以重庆大学建筑环境与能源应用工程专业某毕业设计选题为例,基于该选题的背景与目的,对该毕业设计的关键内容、任务要求与传统毕业设计进行对比,并对其不同点进... 详细信息

毕业设计是本科教育的最后关键环节,对学生就业创业能力的形成有重要作用。以重庆大学建筑环境与能源应用工程专业某毕业设计选题为例,基于该选题的背景与目的,对该毕业设计的关键内容、任务要求与传统毕业设计进行对比,并对其不同点进行剖析。以该毕业设计工作内容为基础,对标中国工程教育认证通用标准中的12项基本要求,对该毕业设计的各重要环节进行了对应解析,分析了各环节相关工作以及能力提升与基本要求之间的关系。基于过程分析结果,构建了毕业设计能力培养与工程认证基本要求的关系图谱。以期通过建环专业毕业设计的工作内容,对标工程认证的基本要求,为相关专业毕业生能力提升提供思路与途径。

关键词：工程教育认证毕业设计建筑环境与能源应用工程对标能力

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血液灌流联合盐酸纳洛酮治疗急性重症镇静药物中毒患者的疗效分析

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疑难病杂志 2024年第2期23卷 192-195,201页

作者：段昱毕淑珍陈锦华刘强李卿山西省长治市人民医院急诊科 046000

目的观察血液灌流联合盐酸纳洛酮治疗急性重症镇静药物中毒患者的临床效果。方法选取2019年7月—2023年7月长治市人民医院急诊科治疗的急性重症镇静药物中毒患者120例为研究对象。按照随机数字表法分为对照组和研究组,各60例。对照组给... 详细信息

目的观察血液灌流联合盐酸纳洛酮治疗急性重症镇静药物中毒患者的临床效果。方法选取2019年7月—2023年7月长治市人民医院急诊科治疗的急性重症镇静药物中毒患者120例为研究对象。按照随机数字表法分为对照组和研究组,各60例。对照组给予盐酸纳洛酮静脉滴注,研究组在对照组基础上给予血液灌流治疗。比较2组临床疗效、意识清醒时间、中毒症状消失时间、住院时间、血气指标水平[pH、动脉血氧分压(PaO_(2))、动脉血二氧化碳分压(PaCO_(2))]、血清炎性因子水平[白介素-4(IL-4)、IL-6、肿瘤坏死因子-α(TNF-α)]及并发症发生率。结果研究组临床总有效率为93.33%,高于对照组的76.67%(χ^(2)/P=6.536/0.011);治疗后研究组患者意识清醒时间、中毒症状消失时间、住院时间短于对照组(t/P=6.675/<0.001、6.004/<0.001、7.174/<0.001);与治疗前比较,治疗后患者PaCO_(2)、IL-4、IL-6、TNF-α水平均下降,pH、PaO_(2)上升(P<0.05),且研究组降低/升高幅度大于对照组(t/P=6.745/<0.001、5.729/<0.001、6.922/<0.001、6.169/<0.001、2.419/0.017、4.291/<0.001);治疗后研究组并发症总发生率为3.33%,低于对照组的15.00%(χ^(2)/P=4.904/0.027)。结论血液灌流联合盐酸纳洛酮治疗急性重症镇静药物中毒患者,可有效改善血气状况,降低炎性反应,促进患者恢复。

关键词：急性重症镇静药物中毒血液灌流盐酸纳洛酮临床疗效炎性因子

Michelin Helps Yunnan Improve R & D on Natural Rubber

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China Chemical Reporter 2008年第23期19卷 8-8页

作者： By chen jinhua

This July,Michelin(China)Investment Lim-ited signed a three-year co-operative agree-ment with Yunnan Agricultural Group Lim-ited and Yunnan Tropical Plant Institute tofurther improve the R &

关键词： rubber signed agree Tropical operative tires signi