检索结果-南通市图书馆

Boosting kinetic separation of ethylene and ethane on microporous materials via crystal size control

Chinese Journal of Chemical Engineering 2024年第1期65卷 85-91页

作者： Yixuan Ma Cong Yu lifeng yang Rimin You Yawen Bo Qihan Gong Huabin Xing Xili Cui Key Laboratory of Biomass Chemical Engineering of Ministry of Education College of Chemical and Biological EngineeringZhejiang UniversityHangzhou 310012China Fundamental Science&Advanced Technology Lab PetroChina Petrochemical Research InstituteChina National Petroleum CorporationBeijing 102200China ZJU-Hangzhou Global Scientific and Technological Innovation Center Zhejiang UniversityHangzhou 311200China Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering Hangzhou 310027China

The adsorptive separation of C_(2)H_(4)and C_(2)H_(6),as an alternative to distillation units consuming high energy,is a promising yet challenging *** great similarity in the molecular size of C_(2)H_(4)and C_(2)H_(6)brings challenges to the regulation of adsorbents to realize efficient dynamic ***,we reported the enhancement of the kinetic separation of C_(2)H_(4)/C_(2)H_(6)by controlling the crystal size of ZnAtzPO_(4)(Atz=3-amino-1,2,4-triazole)to amplify the diffusion difference of C_(2)H_(4)and C_(2)H_(6).Through adjusting the synthesis temperature,reactant concentration,and ligands/metal ions molar ratio,ZnAtzPO4 crystals with different sizes were *** single-component kinetic adsorption tests and binary-component dynamic breakthrough experiments confirmed the enhancement of the dynamic separation of C_(2)H_(4)/C_(2)H_(6)with the increase in the crystal size of ZnAtzPO_(4).The separation selectivity of C_(2)H_(4)/C_(2)H_(6)increased from 1.3 to 98.5 with the increase in the crystal size of ZnAtzPO_(4).This work demonstrated the role of morphology and size control of adsorbent crystals in the improvement of the C_(2)H_(4)/C_(2)H_(6)kinetic separation performance.

关键词： Adsorption Adsorbent Ethylene Binary mixture Crystal size control Kinetic separation

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Porous framework materials for energy&environment relevant applications:A systematic review

引用

Green Energy & Environment 2024年第2期9卷 217-310页

作者： Yutao Liu Liyu Chen lifeng yang Tianhao Lan Hui Wang Chenghong Hu Xue Han Qixing Liu Jianfa Chen Zeming Feng Xili Cui Qianrong Fang Hailong Wang Libo Li Yingwei Li Huabin Xing Sihai yang Dan Zhao Jinping Li College of Chemical Engineering and Technology Shanxi Key Laboratory of Gas Energy Efficient and Clean UtilizationTaiyuan University of TechnologyTaiyuan030024China School of Chemistry and Chemical Engineering South China University of TechnologyGuangzhou510640China Key Laboratory of Biomass Chemical Engineering of Ministry of Education College of Chemical and Biological EngineeringZhejiang UniversityHangzhou310027China Department of Chemistry The University of ManchesterManchesterM139PLUK Department of Chemical and Biomolecular Engineering National University of SingaporeSingapore 117585Singapore ZJU-Hangzhou Global Scientific and Technological Innovation Center Hangzhou311215China State Key Laboratory of Inorganic Synthesis and Preparative Chemistry Jilin UniversityChangchun130012China Beijing Key Laboratory for Science and Application of Functional Molecular and Crystalline Materials Department of ChemistryUniversity of Science and Technology BeijingBeijing100083China

Carbon peaking and carbon neutralization trigger a technical revolution in energy&environment related *** of new technologies for green energy production and storage,industrial energy saving and efficiency reinforcement,carbon capture,and pollutant gas treatment is in highly imperious *** emerging porous framework materials such as metal–organic frameworks(MOFs),covalent organic frameworks(COFs)and hydrogen-bonded organic frameworks(HOFs),owing to the permanent porosity,tremendous specific surface area,designable structure and customizable functionality,have shown great potential in major energy-consuming industrial processes,including sustainable energy gas catalytic conversion,energy-efficient industrial gas separation and ***,this manuscript presents a systematic review of porous framework materials for global and comprehensive energy&environment related applications,from a macroscopic and application perspective.

关键词： Porous framework materials Catalysis Separation Gas storage Carbon neutrality

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Development of a new cerebral ischemia reperfusion model of Mongolian gerbils and standardized evaluation system

引用

Animal Models and Experimental Medicine 2024年第1期7卷 48-55页

作者： Ying Wu Caijiao Hu Zhihui Li Feiyang Li Jianyi Lv Meng Guo Xin Liu Changlong Li Xueyun Huo Zhenwen Chen lifeng yang Xiaoyan Du School of Basic Medical Sciences Capital Medical UniversityBeijingChina Laboratory for Clinical Medicine Capital Medical UniversityBeijingChina College of Veterinary Medicine China Agricultural UniversityBeijingChina

Background:The Mongolian gerbil is an excellent laboratory animal for preparing the cerebral ischemia model due to its inherent deficiency in the circle of ***,the low incidence and unpredictability of symptoms are caused by numerous complex variant types of the ***,the lack of an evaluation system for the cer-ebral ischemia/reperfusion(I/R)model of gerbils has shackled the application of this ***:We created a symptom-oriented principle and detailed neurobehavioral scoring *** different time points of reperfusion,we analyzed the alteration in locomotion by rotarod test and grip force score,infarct volume by triphenyltetrazo-lium chloride(TTC)staining,neuron loss using Nissl staining,and histological charac-teristics using hematoxylin-eosin(H&E)***:With a successful model rate of 56%,32 of the 57 gerbils operated by our method harbored typical features of cerebral I/R injury,and the mortality rate in the male gerbils was significantly higher than that in the female *** suc-cessfully prepared I/R gerbils demonstrated a significant reduction in motility and grip strength at 1 day after reperfusion;formed obvious infarction;exhibited typi-cal pathological features,such as tissue edema,neuronal atrophy and death,and vacuolated structures;and were partially recovered with the extension of reperfu-sion ***:This study developed a new method for the unilateral common carotid artery ligation I/R model of gerbil and established a standardized evaluation system for this model,which could provide a new cerebral I/R model of gerbils with more practical applications.

关键词： ischemia/reperfusion Mongolian gerbil standardized model system unilateral carotid occlusion

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

以出血为主要特征的分离障碍患者一例的护理

引用

军事护理 2024年第8期41卷 111-113页

作者：王静杨黎锋武汉市精神卫生中心儿童青少年心理病区湖北武汉430000

分离障碍(dissociative disorders,DD)是指意识、身份、记忆、感知、情感、躯体症状、运动和行为的正常整合的破坏和中断[1]。患者常体验到非特异的躯体不适感,但这些躯体症状并不指向严重的器质性疾病[2]。儿童青少年分离性症状有异于... 详细信息

分离障碍(dissociative disorders,DD)是指意识、身份、记忆、感知、情感、躯体症状、运动和行为的正常整合的破坏和中断[1]。患者常体验到非特异的躯体不适感,但这些躯体症状并不指向严重的器质性疾病[2]。儿童青少年分离性症状有异于成人且表现多样,女性多发,约50%患者存在非特异性症状[3]。准确的识别与及时的医疗护理干预对于症状控制尤为重要[4]。我科于2023年10月收治1例因躯体多个部位反复出血的青少年情绪障碍患者,经院内疑难病例讨论后诊断为分离障碍。经过20 d的动态评估及护理干预,患者最终病情平稳出院。现报告如下。

关键词：分离障碍出血护理病例报告

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

合成气压缩机机组轴向位移负增长原因分析与处理

引用

大氮肥 2024年第1期47卷 18-20页

作者：阳利锋中石化湖南石油化工有限公司湖南岳阳414003

从合成气压缩机机组运行趋势、鼓形齿式联轴器结构特点、检修过程质量控制、汽轮机机组热膨胀特性等方面,分析鼓形齿式联轴器安装问题造成汽轮机轴向位移负增长的原因,制定相应处理措施,并修订完善检修作业指导书。

关键词：合成气压缩机轴向位移鼓形齿式联轴器隔套窜量轮毂端面间隙热膨胀

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

垃圾焚烧发电厂非常规标准电动吊篮安装设计

引用

科学技术创新 2024年第5期 122-125页

作者：谢清文杨黎峰中国电建集团福建工程有限公司福建福州

电动吊篮是垃圾焚烧发电厂主厂房外墙、锅炉封闭幕墙钢结构和烟囱等高处作业的主要施工吊具,承担着载人施工的重要任务。文中针对电动吊篮在火力发电厂的非常规架设方式进行研究,详细设计了吊篮在不同施工位置的架设工艺流程及其力学验... 详细信息

电动吊篮是垃圾焚烧发电厂主厂房外墙、锅炉封闭幕墙钢结构和烟囱等高处作业的主要施工吊具,承担着载人施工的重要任务。文中针对电动吊篮在火力发电厂的非常规架设方式进行研究,详细设计了吊篮在不同施工位置的架设工艺流程及其力学验算,可为后续其它型号的吊篮架设提供借鉴。

关键词：火力发电厂非常规标准吊篮安装设计

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

119例犬原发性睾丸肿瘤的回顾性病理学分析

引用

畜牧兽医学报 2024年第7期55卷 3177-3184页

作者：涂颖欣周向梅赵德明杨利峰中国农业大学动物医学院北京100193

随着宠物医疗水平的不断提高,犬猫的平均寿命得以延长,同时也导致了各类型肿瘤的检测和诊断率的显著提高。为了了解不同肿瘤的特点,更好地诊治犬猫肿瘤,通过调查扩充其流行病学数据库是十分必要的。犬原发性睾丸肿瘤是雄犬临床常见的肿... 详细信息

随着宠物医疗水平的不断提高,犬猫的平均寿命得以延长,同时也导致了各类型肿瘤的检测和诊断率的显著提高。为了了解不同肿瘤的特点,更好地诊治犬猫肿瘤,通过调查扩充其流行病学数据库是十分必要的。犬原发性睾丸肿瘤是雄犬临床常见的肿瘤之一,其来源可以是睾丸性索/性腺间质、生殖细胞等。本研究对2013—2021年多家宠物医院送检本实验室的2803例犬各器官肿物进行了分类,对其中的119例犬原发性睾丸肿瘤病例进行回顾性病理学分析,列举所诊断出的其中四类肿瘤的组织病理学特征;并统计病例背景信息,探讨犬原发性睾丸肿瘤的风险因素。对于HE染色诊断较为困难的混合性生殖细胞-性索间质瘤,联合应用三种免疫组织化学标记物进行精准诊断,以便进行各类睾丸肿瘤的组织病理学鉴别诊断。结果显示,雄犬的原发性睾丸肿瘤检出率为10.8%,占所有送检病例的4.25%。其中,支持细胞瘤28例(23.5%),间质细胞瘤37例(31.1%),精原细胞瘤42例(35.3%),混合性生殖细胞-性索间质瘤12例(10.1%)。本研究提供了我国犬原发性睾丸肿瘤流行病学的最新资料,并通过统计分析患犬背景信息证实了隐睾是支持细胞瘤和精原细胞瘤的重要风险因素,初步探讨了品种、隐睾位置与不同类型睾丸肿瘤检出率之间的可能相关性。

关键词：犬原发性睾丸肿瘤组织病理学鉴别诊断

来源：

维普期刊数据库

同方期刊数据库博看期刊评论

在线全文

学校读者我要写书评

暂无评论

特立帕肽对全髋关节置换后股骨侧假体周围骨密度及假体下沉的影响

引用

中国骨与关节损伤杂志 2024年第6期39卷 566-570页

作者：黄军刚杨立峰西安交通大学医学院附属三二〇一医院创伤骨科陕西汉中723000

目的分析特立帕肽对全髋关节置换后股骨侧假体周围骨密度及假体下沉的影响。方法纳入自2020-01-2020-12于西安交通大学医学院附属三二〇一医院行初次无骨水泥全髋关节置换术治疗的55例绝经后骨质疏松性股骨颈骨折,随机分为2组,其中观察... 详细信息

目的分析特立帕肽对全髋关节置换后股骨侧假体周围骨密度及假体下沉的影响。方法纳入自2020-01-2020-12于西安交通大学医学院附属三二〇一医院行初次无骨水泥全髋关节置换术治疗的55例绝经后骨质疏松性股骨颈骨折,随机分为2组,其中观察组28例术后均接受特立帕肽联合碳酸钙D3治疗,对照组27例术后接受碳酸钙D3抗骨质疏松治疗。比较两组术后股骨侧假体周围骨密度、股骨侧假体下沉距离及髋关节功能Harris评分。结果所有患者均获得随访,观察组随访时间为(11.89±0.79)个月,对照组随访时间为(12.11±0.85)个月,两组随访时间差异无统计学意义(t=-0.991,P=0.459)。两组术后3个月股骨侧假体下沉距离差异无统计学意义(P>0.05),但观察组术后6个月、1年股骨假体下沉距离较对照组小,差异有统计学意义(P0.05)。观察组术后6个月及术后1年Gruen 1区、4区、6区及7区骨密度下降速度明显较对照组缓慢,差异有统计学意义(P0.05)。结论皮下注射特立帕肽可以减少绝经后骨质疏松性股骨颈骨折全髋关节置换术后股骨侧假体周围骨密度丢失并延缓股骨侧假体下沉时间。

关键词：股骨颈骨折特立帕肽全髋关节置换股骨假体骨密度假体下沉

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Metabolism of minor isoforms of prion proteins Cytosolic prion protein and transmembrane prion protein

引用

Neural Regeneration Research 2013年第30期8卷 2868-2878页

作者： Zhiqi Song Deming Zhao lifeng yang State Key Laboratory for Agrobiotechnology National Animal Transmissible Spongiform Encephalopathy Laboratory College of Veterinary Medicine China Agricultural University

Transmissible spongiform encephalopathy or prion disease is triggered by the conversion from cellular prion protein to pathogenic prion protein. Growing evidence has concentrated on prion protein configuration changes and their correlation with prion disease transmissibility and patho- genicity. In vivo and in vitro studies have shown that several cytosolic forms of prion protein with specific topological structure can destroy intracellular stability and contribute to prion protein pathogenicity. In this study, the latest molecular chaperone system associated with endoplasmic re- ticulum-associated protein degradation, the endoplasmic reticulum resident protein quality-control system and the ubiquitination proteasome system, is outlined. The molecular chaperone system directly correlates with the prion protein degradation pathway. Understanding the molecular mechanisms will help provide a fascinating avenue for further investigations on prion disease treatment and prion protein-induced neurodegenerative diseases.

关键词： neural regeneration neurodegeneration prion protein cytosolic form of prion protein transmem-brane form of prion protein metabolism protein degeneration ubiquitination molecular chaperone molecular mechanism neuroregeneration

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Adaptive mixture observation models for multiple object tracking

引用

Science in China(Series F) 2009年第2期52卷 226-235页

作者： CUI Peng SUN lifeng yang ShiQiang Department of Computer Science Tsinghua University Beijing 10084 China

Multiple object tracking （MOT） poses many difficulties to conventional well-studied single object tracking （SOT） algorithms, such as severe expansion of configuration space, high complexity of motion conditions, and visual ambiguities among nearby targets, among which the visual ambiguity problem is the central challenge. In this paper, we address this problem by embedding adaptive mixture observation models （AMOM） into a mixture tracker which is implemented in Particle Filter framework. In AMOM, the extracted multiple features for appearance description are combined according to their discriminative power between ambiguity prone objects, where the discriminability of features are evaluated by online entropy-based feature selection techniques. The induction of AMOM can help to surmount the incapability of conventional mixture tracker in handling object occlusions, and meanwhile retain its merits of flexibility and high efficiency. The final experiments show significant improvement in MOT scenarios compared with other methods.

关键词： motion tracking mixture tracker particle filter online feature selection

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：