检索结果-南通市图书馆

数理统计与管理 2005年第6期24卷 33-39页

作者：骆珣马红霞北京理工大学管理与经济学院北京100081

制造业作为国民经济的物质基础和产业主体,不仅是经济高速增长的发动机和产业结构优化的推动力,同时也是解决就业的重要产业。本文将综合评估模型应用于北京市制造业优先发展产业的选择,并对北京市应优先发展的产业进行了研究和分析。

关键词：优先发展产业综合评估

Application of magnetotactic bacteria as engineering microrobots:Higher delivery efficiency of antitumor medicine

在线全文

学校读者我要写书评

暂无评论

Chinese Chemical Letters 2024年第10期35卷 139-146页

作者： Jing Zhang Charles Wang Yaoyao Zhang Haining xia Yujuan Wang Kun ma junfeng Wang High magnetic Field Laboratory CAS Key Laboratory of High Magnetic Field and lon Beam Physical BiologyHefei Institutes of Physical ScienceChinese Academy of SciencesHefei 230031China University of Science and Technology of China Hefei 230026China University of California San DiegoLa JollaCA 92093United States International magnetobiology Frontier Research Center Hefei 230031China

For a significant duration,enhancing the efficacy of cancer therapy has remained a critical *** bacteria(MTB),often likened to micro-robots,hold substantial promise as a drug delivery ***,classified as anaerobic,aquatic,and gram-negative microorganisms,exhibit remarkable motility and precise control over their internal biomineralization *** unique ability results in the formation of magnetic nanoparticles arranged along filamentous structures in a catenary fashion,enclosed within a *** bacteria possess distinctive biochemical properties that facilitate their precise positioning within complex *** harnessing these biochemical attributes,MTB could potentially offer substantial advantages in the realm of cancer *** article reviews the drug delivery capabilities of MTB in tumor treatment and explores various applications based on their inherent *** objective is to provide a comprehensive understanding of MTB-driven drug delivery and stimulate innovative insights in this field.

关键词： magnetotactic bacteria Engineering microrobot Tumor treatment Drug delivery Bioconjugation

在线全文

学校读者我要写书评

暂无评论

主角情绪和时间信息对情境模型加工的影响

心理学报 2011年第7期43卷 763-770页

作者：鲁忠义马红霞河北师范大学教育学院石家庄050091 河北联合大学心理学院唐山063000

采用移动窗口技术探讨了情境模型加工中主角情绪与时间转换因素对情境模型加工的影响。实验1采用单因素被试内设计,结果显示,关键句的阅读时间模式为:放松-放松=担心-放松<放松-担心=担心-担心。实验2采用4×2两因素被试内设计,结果在担... 详细信息

采用移动窗口技术探讨了情境模型加工中主角情绪与时间转换因素对情境模型加工的影响。实验1采用单因素被试内设计,结果显示,关键句的阅读时间模式为:放松-放松=担心-放松<放松-担心=担心-担心。实验2采用4×2两因素被试内设计,结果在担心-担心模式下大的时间转换比小的时间转换的阅读时间长,而时间转换因素对于主角情绪状态是担心-放松、放松-放松和放松-担心模式的加工没有影响。实验结果表明,读者在阅读语篇时实时追踪主角的情绪状态,出现了部分的情绪转换效应。阅读中读者体验到的积极的情绪状态有利于情境模型的建构,相反,体验到的消极的情绪状态会妨碍情境模型的建构。时间转换因素在一定程度上影响了对主角情绪状态的加工,主角担心-担心的情绪状态在大的时间转换条件下,前后两种相同的消极情绪可能会产生一种叠加效应,使读者的情境模型加工更加困难;而在小的时间转换条件下,读者对从放松转向担心的情绪状态的加工会花费更多的认知资源。

关键词：情境模型主角情绪时间转换

Changes of the peripapillary vascular parameters inpremature infants without retinopathy of prematurityusing U-net segmentation

在线全文

学校读者我要写书评

暂无评论

International Journal of Ophthalmology(English edition) 2024年第8期17卷 1453-1461页

作者： Shuai Liu Lei Liu Cui-xia ma Liu-Hui Huang Bin Li School of Information Science and Technology University of Science and Technology of ChinaHefei 230022Anhui ProvinceChina Zhejiang Lab Hangzhou 311121Zhejiang ProvinceChina Eye Institute Affiliated Hospital of Nantong UniversityMedical School of Nantong UniversityNantong 226006Jiangsu ProvinceChina Anhui Province maternity and Child Health Hospital Maternity and Child Health Hospital Affiliated to Anhui Medical UniversityHefei 230001Anhui ProvinceChina Department of Ophthalmology Tenth People’s Hospital Affiliated with Shanghai Tongji University School of MedicineShanghai 200072China

AIM:To quantitatively assess the changes in mean vascular tortuosity(mVT)and mean vascular width(mVW)around the optic disc and their correlation with gestational age(GA)and birth weight(BW)in premature infants without retinopathy of prematurity(ROP).METHODS:A single-center retrospective study included a total of 133(133 eyes)premature infants[mean corrected gestational age(CGA)43.6wk]without ROP as the premature group and 130(130 eyes)CGA-matched fullterm infants as the control *** peripapillary mVT and mVW were quantitatively measured using computerassisted ***:Premature infants had significantly higher mVT(P=0.0032)and lower mVW(P=0.0086)by 2.68(10^(4) cm^(-3))and 1.85μm,*** analysis with GA showed significant differences(P=0.0244)in mVT between the early preterm and middle to late preterm groups,but the differences between mVW were not significant(P=0.6652).The results of the multiple linear regression model showed a significant negative correlation between GA and BW with mVT after adjusting sex and CGA(P=0.0211 and P=0.0006,respectively).For each day increase in GA at birth,mVT decreased by 0.1281(10^(4) cm^(-3))and for each 1 g increase in BW,mVT decreased by 0.006(10^(4) cm^(-3)).However,GA(P=0.9402)and BW(P=0.7275)were not significantly correlated with ***:Preterm birth significantly affects the peripapillary vascular parameters that indicate higher mVT and narrower mVW in premature infants without *** in these parameters may provide new insights into the pathogenesis of ocular vascular disease.

关键词： premature infants retinopathy of prematurity retinal vessels parameter computer-assisted techniques

Low friction under ultrahigh contact pressure enabled by self-assembled fluorinated azobenzene layers

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Friction 2024年第7期12卷 1434-1448页

作者： Dandan XUE Zhi XU Linyuan GUO Wendi LUO Liran ma Yu TIAN Ming ma Qingdao ZENG Ke DENG Wenjing ZHANG Yichun xia Shizhu WEN Jianbin LUO State Key Laboratory of Tribology in Advanced Equipment Tsinghua UniversityBeijing 100084China National Center for Nanoscience and Technology Beijing 100190China

Extensive efforts have been made to pursue a low-friction state with promising applications in many fields,such as mechanical and biomedical *** which,the load capacity of the low-friction state has been considered to be crucial for industrial ***,we report a low friction under ultrahigh contact pressure by building a novel self-assembled fluorinated azobenzene layer on an atomically smooth highly-oriented pyrolytic graphite(HOPG)*** friction coefficients could be as low as 0.0005 or even lower under a contact pressure of up to 4 *** demonstrates that the low friction under ultrahigh contact pressure is attributed to molecular *** fluorination leads to effective and robust lubrication between the tip and the self-assembled layer and enhances tighter rigidity which can reduce the stress concentration in the substrate,which was verified by density functional theory(DFT)and molecular dynamics(MD)*** work provides a new approach to avoid the failure of ultralow friction coefficient under relatively high contact pressure,which has promising potential application value in the future.

关键词： ultrahigh contact pressure self-assembled layer fluorination robust lubrication

The influence and explanation of fringing-induced barrier lowering on sub-100 nm MOSFETs with high-k gate dielectrics

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Physics B 2012年第5期21卷 602-606页

作者：马飞刘红侠匡潜玮樊继斌 Key Laboratory of Ministry of Education for Wide Band-Gap Semiconductor material and Devices School of MicroelectronicsXidian University

The fringing-induced barrier lowering（FIBL） effect of sub-100 nm MOSFETs with high-k gate dielectrics is investigated using a two-dimensional device *** equivalent capacitance theory is proposed to explain the physics mechanism of the FIBL *** FIBL effect is enhanced and the short channel performance is degraded with increasing *** on equivalent capacitance theory,the influences of channel length,junction depth,gate/lightly doped drain（LDD） overlap length,spacer material and spacer width on FIBL is thoroughly investigated.A stack gate dielectric is presented to suppress the FIBL effect.

关键词： high-k gate dielectric fringing-induced barrier lowering stack gate dielectric MOSFET

儿童动作发展测试(TGMD-2)信度和效度的研究

在线全文

学校读者我要写书评

暂无评论

体育学刊 2007年第3期14卷 37-40页

作者：李静马红霞山东师范大学体育学院山东济南250014

以511名3～10岁儿童为测试对象,探讨了大肌肉动作发展测试（TGMD-2）的信度和效度,结果表明测试者信度系数为0.436～0.876;内部一致性信度系数为0.607～0.925;重测信度系数为0.608～0.876;内容效度、结构效度、效标效度也都令人满意。TG... 详细信息

以511名3～10岁儿童为测试对象,探讨了大肌肉动作发展测试（TGMD-2）的信度和效度,结果表明测试者信度系数为0.436～0.876;内部一致性信度系数为0.607～0.925;重测信度系数为0.608～0.876;内容效度、结构效度、效标效度也都令人满意。TGMD-2可作为3～10岁儿童大肌肉动作发展状况的测评工具。

关键词：大肌肉动作发展信度效度儿童

The Role of Corticotropin-Releasing Factor Receptor 1 in the Stress-Induced Alteration of Visual Properties in Primary Visual Cortex:Insights from the Single Prolonged Stress Model

在线全文

学校读者我要写书评

暂无评论

Neuroscience Bulletin 2024年第7期40卷 1012-1016页

作者： Qianhui xia Xi Kuang Wei Meng Fei Yin Chenchen ma Yupeng Yang Center for Advanced Interdisciplinary Science and Biomedicine of IHM Division of Life Sciences and MedicineUniversity of Science and Technology of ChinaHefei 230027China

Dear Editor,Stress initiates a cascade of hormonal and behavioral responses that enable an organism to adapt to new environmental *** unbalanced stress response can lead to dysregulation of the hypothalamic-pituitary-... 详细信息

关键词： Corti Receptor Cortex

A Deep Deterministic Policy Gradient-Based Method for Enforcing Service Fault-Tolerance in MEC

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Journal of Electronics 2024年第4期33卷 899-909页

作者： Tingyan LONG Peng CHEN Yunni xia Yong ma xiaoning SUN Jiale ZHAO Yifei LYU College of Computer Science Chongqing University School of Computer and Software Engineering Xihua University School of Computer and Information Engineering Jiangxi Normal University School of Computer and Information Science Chongqing Normal University

Mobile edge computing(MEC) provides edge services to users in a distributed and on-demand *** to the heterogeneity of edge applications, deploying latency and resource-intensive applications on resourceconstrained devices is a key challenge for service providers. This is especially true when underlying edge infrastructures are fault and error-prone. In this paper, we propose a fault tolerance approach named DFGP, for enforcing mobile service fault-tolerance in MEC. It synthesizes a generative optimization network(GON) model for predicting resource failure and a deep deterministic policy gradient(DDPG) model for yielding preemptive migration *** show through extensive simulation experiments that DFGP is more effective in fault detection and guaranteeing quality of service, in terms of fault detection accuracy, migration efficiency, task migration time, task scheduling time,and energy consumption than other existing methods.

关键词： Fault tolerance Multi-access edge computing Processor scheduling Fault detection Image edge detection Fault tolerant systems Quality of service

A Fault-Tolerant Mobility-Aware Caching Method in Edge Computing

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Computer Modeling in Engineering & Sciences 2024年第7期140卷 907-927页

作者： Yong ma Han Zhao Kunyin Guo Yunni xia Xu Wang xianhua Niu Dongge Zhu Yumin Dong School of Computer Information Engineering Jiangxi Normal UniversityNanchang330000China School of Digital Industry Jiangxi Normal UniversityShangrao334000China The College of Computer Science Chongqing UniversityChongqing400044China College of Mechanical and Vehicle Engineering Chongqing UniversityChongqing400030China School of Computer and Software Engineering Xihua UniversityChengdu610039China Electric Power Research Institute of State Grid Ningxia Electric Power Company Ltd. Yinchuan750002China College of Computer and Information Science Chongqing Normal UniversityChongqing401331China

Mobile Edge Computing(MEC)is a technology designed for the on-demand provisioning of computing and storage services,strategically positioned close to *** the MEC environment,frequently accessed content can be deployed and cached on edge servers to optimize the efficiency of content delivery,ultimately enhancing the quality of the user ***,due to the typical placement of edge devices and nodes at the network’s periphery,these components may face various potential fault tolerance challenges,including network instability,device failures,and resource *** the dynamic nature ofMEC,making high-quality content caching decisions for real-time mobile applications,especially those sensitive to latency,by effectively utilizing mobility information,continues to be a significant *** response to this challenge,this paper introduces FT-maACC,a mobility-aware caching solution grounded in multi-agent deep reinforcement learning and equipped with fault tolerance *** approach comprehensively integrates content adaptivity algorithms to evaluate the priority of highly user-adaptive cached ***,it relies on collaborative caching strategies based onmulti-agent deep reinforcement learningmodels and establishes a fault-tolerancemodel to ensure the system’s reliability,availability,and *** results unequivocally demonstrate that FTmaACC outperforms its peer methods in cache hit rates and transmission latency.

关键词： Mobile edge networks mobility fault tolerance cooperative caching multi-agent deep reinforcement learning content prediction