检索结果-南通市图书馆

Synthetic Strategies for Constructing Two-Dimensional Metal-Organic Layers （MOLs）： A Tutorial Review

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Chemistry 2018年第8期36卷 754-764页

作者： lingyun cao Tingting Wang Cheng Wang Collaborative Innovation Center of Chemistry for Energy Materials State Key Laboratory of Physical Chemistry of Solid Surfaces Department of Chemistry College of Chemistry and Chemical Engineering Xiamen University Xiamen Fujian 361005 China

Two-dimensional （2D） metal-organic layers （MOLs） are the 2D version of metal-organic frameworks （MOFs） with nanometer thickness in one dimension. MOLs are also known as 2D-MOFs, 2D coordination polymers, ultrathin MOF nanosheets （UMOFNs） or coordination nanosheets in literature. This new category of 2D materials has attracted a lot of interests because of the opportunity in combining molecular chemistry, surface/interface chemistry and material chemistry of low dimensional materials in these systems. Several synthetic strategies have been developed for the construction of 2D MOLs, but the general synthesis of MOLs still presents a challenge. This tutorial level review summarizes the recent progress in the fabrication of novel 2D MOLs and aims to highlight challenges in this field.

关键词： metal-organic layers metal-organic frameworks 2D materials bottom-up synthesis top-down synthesis

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

柔性触觉传感电子皮肤研究进展

科学通报 2024年第20期69卷 2978-2999页

作者：程斌陈家祥曹凌云何江锋于鹏衣芳中山大学材料科学与工程学院中山大学纳米技术研究中心广州市柔性电子材料与可穿戴设备重点实验室广州510006

柔性触觉传感电子皮肤是一种模拟天然皮肤触觉功能的设备,可以附着在人体皮肤或机器人等表面,感知各种刺激如压力和温度等,在智能假肢、机器人、健康医疗等领域有着重要的应用,具有巨大的潜在市场价值,是科研界和产业界共同关注的研究... 详细信息

柔性触觉传感电子皮肤是一种模拟天然皮肤触觉功能的设备,可以附着在人体皮肤或机器人等表面,感知各种刺激如压力和温度等,在智能假肢、机器人、健康医疗等领域有着重要的应用,具有巨大的潜在市场价值,是科研界和产业界共同关注的研究热点之一.柔性触觉传感电子皮肤主要可分为柔性压力触觉传感电子皮肤、柔性温度触觉传感电子皮肤和柔性解耦多模触觉传感电子皮肤等三大类.本文主要综述了近年来柔性触觉传感电子皮肤的研究进展,重点归纳总结了上述三类柔性触觉传感电子皮肤的传感机制和工作特点,从材料组成和器件结构等层面介绍了柔性触觉传感电子皮肤性能改进的不同方法.除此之外,本文还阐述了目前柔性触觉传感电子皮肤所面临的主要挑战、解决途径以及未来发展前景.

关键词：触觉传感电子皮肤柔性材料柔性器件

在线全文

学校读者我要写书评

暂无评论

建材套筒窑CCUS技术的优势及应用探讨

水泥工程 2024年第4期 71-73,76页

作者：曹凌云庞焕军江苏中圣园科技股份有限公司江苏南京211102

套筒窑作为冶金、电石、建材等行业生产碳酸盐的一种装置,在燃料的燃烧及原料的分解过程中产生大量的CO_(2),其排放的烟气中含有较高浓度的CO_(2),约占25%~40%,具有较高的碳捕集价值。本文重点从套筒窑的结构特点介绍其在CO_(2)捕集上... 详细信息

套筒窑作为冶金、电石、建材等行业生产碳酸盐的一种装置,在燃料的燃烧及原料的分解过程中产生大量的CO_(2),其排放的烟气中含有较高浓度的CO_(2),约占25%~40%,具有较高的碳捕集价值。本文重点从套筒窑的结构特点介绍其在CO_(2)捕集上的技术优势,并探讨套筒窑CCUS技术的应用。

关键词： CCUS 套筒窑烟气碳捕集

Metal-organic layers as reusable solid fluorination reagents and heterogeneous catalysts for aromatic fluorination

在线全文

学校读者我要写书评

暂无评论

Nano Research 2021年第2期14卷 473-478页

作者： Wenjie Shi Lingzhen Zeng lingyun cao Ying Huang Cheng Wang Wenbin Lin State Key Laboratory of Physical Chemistry of Solid Surfaces Collaborative Innovation Center of Chemistry for Energy MaterialsNational Engineering Laboratory for Green Chemical Production of AlcohobEthers and EstersDepartment of ChemistryCollege of Chemistry and Chemical EngineeringiCHEMPCOSSXiamen UniversityXiamen 361005China Department of Chemistry University of ChicagoChicagoIL 60637USA

Reusable solid fluorination reagents and heterogeneous catalysts are ideally suited for late-stage fluorination with fast and clean conversion and simplified *** we report Pd-functionalized two-dimensional metal-organic layers(MOLs)as solid reagents and heterogeneous catalysts to efficiently fluorinate a broad scope of aromatic *** isolation in the MOLs provides a unique opportunity to stabilize highly active F-containing species for the chemical conversion.A terpyridine(TPY)-based ligand on the MOL,together with a 2-chloro-1,10-phenanthroline(phenCl)as a co-ligand,chelates Pd^(Ⅱ)toform a reactive *** treatment with Selectfluor/H_(2)0,an(N-fluoroxy)-(2-chloro)-phenanthrolinium[N-(FO)-phenCl^(+)]moiety is produced from the co-ligand on the Pd *** active species serves as a stochiometric solid fluorination reagent,which shows different regioselectivities and reactivities as compared to homogeneous catalysts that involves Pd^(Ⅲ/Ⅳ)-F intermediates in catalytic *** MOLs can also be used as heterogeneous catalysts for fluorination using *** work highlights opportunities in using MOLs to stabilize unique active sites for late-stage fluorination.

关键词： metal-organic layers solid reagent heterogeneous catalyst fluorination

脑卒中相关性肺炎患者肺部多药耐药菌感染的影响因素

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

中外医药研究 2024年第11期3卷 139-141页

作者：武丽丽赵阳曹凌云潍坊市人民医院神经内三科山东潍坊261041

目的:分析脑卒中相关性肺炎患者肺部多药耐药菌感染的影响因素。方法:采用便利抽样的方法,回顾性分析2017年1月—2022年12月潍坊市人民医院接受治疗的168例脑卒中相关性肺炎患者的临床资料,包括性别、年龄、脑卒中类型、意识障碍情况、... 详细信息

目的:分析脑卒中相关性肺炎患者肺部多药耐药菌感染的影响因素。方法:采用便利抽样的方法,回顾性分析2017年1月—2022年12月潍坊市人民医院接受治疗的168例脑卒中相关性肺炎患者的临床资料,包括性别、年龄、脑卒中类型、意识障碍情况、吞咽功能情况、合并糖尿病、合并高血压、肺部感染分型、预防性使用抗生素情况、胃管留置情况等,分析脑卒中相关性肺炎患者肺部多药耐药菌感染的独立影响因素。结果:168例脑卒中相关性肺炎患者中,有113例(67.26%)为脑卒中后肺部多药耐药菌感染。单因素分析结果显示,多药耐药菌感染组意识障碍、晚发型肺炎、预防性使用抗生素占比高于非多药耐药菌感染组,差异有统计学意义(P<0.001)。Logistic多因素分析结果显示,意识障碍、晚发型肺炎、预防性使用抗生素是脑卒中后肺部多药耐药菌感染的独立影响因素(P<0.05)。结论:意识障碍、晚发型肺炎、预防性使用抗生素是脑卒中后肺部多药耐药菌感染的独立影响因素。

关键词：脑卒中相关性肺炎耐药菌感染意识障碍抗生素

Controlling the size of fragrance microcapsules using designed agitator paddles: Experiment and CFD simulation

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Particuology 2019年第2期17卷 38-45页

作者： Hongbin Zhao Xuening Fei Baolian Zhang Shuxing Zhao Guangmin Li lingyun cao School of Chemical Engineering and Technology Tianjin University Tianjin 300350 China School of Science Tianjin Chengjian University Tianjin 300384 China School of Materials Science and Engineering Tianjin Chengjian University Tianjin 300384 China School of Energy and Safety Engineering Tianjin Chengjian University Tianjin 300384 China

Controlling the size of fragranee microcapsules using designed agitator paddles was investigated and studied by CFD simulation. First, different fluid flows were established by varying stirring speeds, reactor scales, and agitator paddle design, and the effects of each on particle size and distribution of prepared microcapsules were determined. The experimental results showed that the pattern design of orifices in the plate paddles control the flow field well. Narrow particle-size distributio ns of the microcapsules were obtained. The fluid flow characteristics including fluid velocity field, turbulent kinetic energy field, and shear stress distribution for thedifferent agitator paddle types in different reaction kettles were simulated using CFD tech no logy. The correlations between simulated data and experime ntal results were an alyzed. Significantly, the simulated average flow velocity was found to show good negative linear correlation w让h the average particle size of prepared microcapsules, with a correlation of y =-2.166x + 42.626.

关键词： Fragrance microcapsule Melamine-formaldehyde Particle size Orifice stirring paddle CFD simulation

Optimal Location and Sizing ofMulti-Resource Distributed Generator Based onMulti-Objective Artificial Bee Colony Algorithm

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Energy Engineering 2024年第2期121卷 499-521页

作者： Qiangfei cao Huilai Wang Zijia Hui lingyun Chen Economic and Technological Research Institute State Grid Shanxi Electric Power Co.Ltd.Xi’an710075China Central Southern China Electric Power Design Institute Co. Ltd.China Power Engineering Consulting GroupWuhan430074China

Distribution generation(DG)technology based on a variety of renewable energy technologies has developed rapidly.A large number of multi-type DG are connected to the distribution network(DN),resulting in a decline in the stability of DN *** is urgent to find a method that can effectively connect multi-energy DG to ***(PV),wind power generation(WPG),fuel cell(FC),and micro gas turbine(MGT)are considered in this paper.A multi-objective optimization model was established based on the life cycle cost(LCC)of DG,voltage quality,voltage fluctuation,system network loss,power deviation of the tie-line,DG pollution emission index,and meteorological index weight of ***-objective artificial bee colony algorithm(MOABC)was used to determine the optimal location and capacity of the four kinds of DG access DN,and compared with the other three heuristic *** tests based on IEEE 33 test node and IEEE 69 test node show that in IEEE 33 test node,the total voltage deviation,voltage fluctuation,and system network loss of DN decreased by 49.67%,7.47%and 48.12%,respectively,compared with that without DG *** the IEEE 69 test node,the total voltage deviation,voltage fluctuation and system network loss of DN in the MOABC configuration scheme decreased by 54.98%,35.93%and 75.17%,respectively,compared with that without DG configuration,indicating that MOABC can reasonably plan the capacity and location of *** the maximum trade-off between DG economy and DN operation stability.

关键词： Distributed generation distribution network life cycle cost multi-objective artificial bee colony algorithm voltage stability

多发腔隙性脑梗死患者抑郁症状与睡眠-觉醒昼夜节律的关系

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

中国健康心理学杂志 2024年第4期32卷 542-547页

作者：曹凌云张萍淑元小冬钱洪春段丽琴袁建新华北理工大学心理与精神卫生学院河北唐山063210 河北省神经生物机能重点实验室华北理工大学附属开滦总医院神经内科

目的:探讨多发腔隙性脑梗死(MLI)患者抑郁症状与睡眠觉醒昼夜节律的关系。方法:选取2020年12月至2021年12月某院住院治疗的MLI患者277例,根据DSM-5卒中后抑郁症状的诊断标准和Zung氏抑郁自评量表(SDS)评分,分为MLI抑郁症状(PSD)组和MLI... 详细信息

目的:探讨多发腔隙性脑梗死(MLI)患者抑郁症状与睡眠觉醒昼夜节律的关系。方法:选取2020年12月至2021年12月某院住院治疗的MLI患者277例,根据DSM-5卒中后抑郁症状的诊断标准和Zung氏抑郁自评量表(SDS)评分,分为MLI抑郁症状(PSD)组和MLI无抑郁症状(NPSD)组。应用智能睡眠监测系统监测睡眠参数,评估睡眠-觉醒昼夜节律日间稳定性(IS)和昼夜变异性(IV);应用昼夜节律类型(CTI)量表评估睡眠-觉醒昼夜调节能力。比较两组基本临床特征、睡眠参数、昼夜节律指标,应用多因素logistic回归分析探讨MLI患者抑郁症状与睡眠-觉醒昼夜节律的关系。结果:(1)PSD组年龄、NIHSS评分、高同型半胱氨酸血症(HHcy)、焦虑症状及梗死病灶位于额叶、颞叶、枕叶、丘脑、脑干的比例高于NPSD组(Z=-3.322,-2.897,χ^(2)=4.737,16.184,4.925,12.710,8.974,10.598,8.334;P<0.05);(2)PSD组IS、灵活性/刚性(CTI-FR)评分低于NPSD组,IV、困倦/活力(CTI-LV)评分高于NPSD组(Z=-3.255,-2.140,-2.489,-2.010,P<0.05);(3)PSD组夜间总睡眠时间(TST)、REM时间、REM%和夜间睡眠效率(SE)均低于NPSD组(Z=-3.511,t=-4.754,-3.768,Z=-4.904,P<0.05);PSD组入睡后清醒时间(WASO)、睡眠潜伏期(SL)及浅睡眠(LST)%高于NPSD组(Z=-2.817,-2.889,t=2.222,P<0.05);(4)多因素Logistic回归分析结果显示,REM%(OR=0.910,95%CI=0.853~0.971)、夜间SE(OR=0.893,95%CI=0.821~0.972)、IS(OR=0.807,95%CI=0.662~0.984)、CTI-FR(OR=0.751,95%CI=0.588~0.958)、CTI-LV(OR=1.102,95%CI=1.012~1.200)与MLI患者抑郁症状独立相关(均P<0.05)。结论:睡眠-觉醒昼夜节律与MLI抑郁症状密切相关,REM%、夜间SE、IS、CTI-FR降低或CTI-LV增高,MLI患者发生抑郁症状的危险性增高。

关键词：多发腔隙性脑梗死抑郁症状睡眠昼夜节律

卒中伴阻塞性睡眠呼吸暂停患者认知功能损害与睡眠参数的关系

在线全文

学校读者我要写书评

暂无评论

天津医药 2024年第6期52卷 619-624页

作者：钱洪春张萍淑元小冬袁建新曹凌云段丽琴华北理工大学心理与精神卫生学院 063210 华北理工大学附属开滦总医院神经内科河北省神经生物机能重点实验室

目的探讨急性缺血性卒中伴阻塞性睡眠呼吸暂停(OSA)患者认知功能损害与睡眠参数的关系。方法选取急性缺血性卒中伴OSA患者343例,应用简易智力状态检查量表(MMSE)评估认知功能,将患者分为卒中伴OSA认知功能损害组(MMSE<27分)119例,卒中伴... 详细信息

目的探讨急性缺血性卒中伴阻塞性睡眠呼吸暂停(OSA)患者认知功能损害与睡眠参数的关系。方法选取急性缺血性卒中伴OSA患者343例,应用简易智力状态检查量表(MMSE)评估认知功能,将患者分为卒中伴OSA认知功能损害组(MMSE<27分)119例,卒中伴OSA无认知功能损害组(MMSE≥27分)224例。收集患者的一般资料、急性脑卒中治疗的Org10172试验(TOAST)病因分型及脑梗死病灶的脑区分布;应用智能睡眠监测系统计算得出呼吸暂停低通气指数(AHI),评估OSA;进行夜间客观睡眠监测参数的采集:患者入院24 h内进行睡眠监测,连续监测≥3个夜晚,每晚持续监测时长≥7 h,得到夜间睡眠结构参数。应用多因素Logistic回归分析急性缺血性卒中伴OSA患者认知功能损害与睡眠参数的关系。结果与无认知功能损害组比较,认知功能损害组年龄、糖尿病史和高同型半胱氨酸血症(HHcy)病史比例,梗死病灶位于额叶、颞叶、顶叶、枕叶、丘脑、基底节、脑干、半卵圆中心患者的比例升高,受教育年限降低,清醒次数、浅睡眠占比、AHI增加,夜间睡眠效率、深睡眠期减少,深睡眠占比下降(P<0.05)。Logistic回归分析显示,在控制了受教育年限、年龄等因素的干扰作用后,夜间睡眠效率升高是认知功能损害的保护因素,AHI升高是危险因素。结论急性缺血性卒中伴OSA患者认知功能损害与睡眠参数密切相关,其中夜间睡眠效率升高是认知功能损害的保护因素,AHI升高是危险因素。

关键词：卒中睡眠呼吸暂停阻塞性认知功能障碍呼吸暂停低通气指数睡眠结构

维普期刊数据库博看期刊