检索结果-南通市图书馆

A survey on intelligence-endogenous network:Architecture and technologies for future 6G

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Intelligent and Converged Networks 2024年第1期5卷 53-67页

作者： lanlan li the School of Communication and Information Engineering Shanghai Technical Institute of Electronics&InformationShanghai 201141China

With the maturity of 5G technology and global commercialization,scholars in institutions and industrial circles began to research 6G *** important innovation of 6G technology is to integrate artificial intelligence(AI)technology and communication technology to build a highly endogenous intelligent communication *** paper investigates the process of AI technology introduced into the field of communication and reviews the use cases of the simulation and application of AI algorithms being discussed in 3GPP meetings in industry *** this research report,we first investigate the progress of AI technology in 5G network architecture and then discuss the requirements of endogenous intelligent 6G networks,which leads to the possible network *** work aims to provide enlightening guidance for subsequent research of intelligence-endogenous 6G network.

关键词： 5G 6G intelligence-endogenous artificial intelligence

Research on throughput prediction of 5G network based on LSTM

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Intelligent and Converged Networks 2022年第2期3卷 217-227页

作者： lanlan li Tao Ye Purple Mountain Labs Nanjing 210000China China Communications Construction Second Harbor Engineering Company Ltd. Wuhan 430040China

This paper proposes a wireless network traffic prediction model based on long-term and short-term memory cyclic neural *** simulation experiments,the throughput prediction of 5G wireless networks using different scheduling algorithms for many different types of services is *** results verify that the long short-term memory prediction model has acceptable prediction accuracy and algorithm training speed,meets the needs of wireless network traffic prediction,and has a good application prospect.

关键词： wireless network flow forecast long short-term memory(LSTM) schedule throughput

A flexible scheduling algorithm for the 5th-generation networks

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Intelligent and Converged Networks 2021年第2期2卷 101-107页

作者： lanlan li Wentao Shao Xin Zhou Purple Mountain Lab Nanjing 210000China School of Information Science and Engineering Southeast UniversityNanjing 210000China

At present,the 5th-Generation(5G)wireless mobile communication standard has been released.5G networks efficiently support enhanced mobile broadband traffic,ultra-reliable low-latency communication traffic,and massive machine-type ***,a major challenge for 5G networks is to achieve effective Radio Resource Management(RRM)strategies and scheduling algorithms to meet quality of service *** Proportional Fair(PF)algorithm is widely used in the existing 5G scheduling *** the PF algorithm,RRM assigns a priority to each user which is served by *** existing metrics of priority mainly focus on the flow *** purpose of this study is to explore how to improve the throughput of 5G networks and propose new scheduling *** this study,the package delay of the data flow is included in the metrics of *** Vienna 5G System-Level(SL)simulator is a MATLAB-based SL simulation platform which is used to facilitate the research and development of 5G and beyond mobile *** paper presents a new scheduling algorithm based on the analysis of different scheduling schemes for radio resources using the Vienna 5G SL simulator.

关键词： 5th-Generation(5G) radio resource management channel status information reporting scheduling schemes Vienna simulator

Chemical oscillation in electrochemical oxidation of methanol on Pt surface

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Science China Chemistry 2008年第4期51卷 322-332页

作者： li lanlan WEI ZiDong QI XueQiang SUN CaiXin YIN GuangZhi State Key Laboratory of Safety and New Technology for Electric Transmission&Distribution Chongqing UniversityChongqing 400044China School of Chemical Engineering Chongqing UniversityChongqing 400044China School of Material Science and Engineering Chongqing UniversityChongqing 400044China Key Laboratory of Exploitation of Southwestern Resources&the Environmental Disaster Control Engineering Chongqing Univer-sityChongqing 400044China

Based on dual path reaction mechanism, a nonlinear dynamics model reflecting the potential oscilla- tion in electrooxidation of methanol on Pt surface was established. The model involves three variables, the electrode potential (e), the surface coverage of carbon monoxide (x), and adsorbed water (y). The chemical reactions and electrode potential were coupled together through the rate constant ki = exp(ai(e ? ei)). The analysis to the established model discloses the following: there are different kinetics be- haviors in different ranges of current densities. The chemical oscillation in methanol electrooxidation is assigned to two aspects, one from poison mediate CO of methanol electrooxidation, which is the in- duced factor of the chemical oscillation, and the other from the oxygen-containing species, such as H2Oa. The formation and disappearance of H2Oa deeply depend on the electrode potential, and directly cause the chemical oscillation. The established model makes clear that the potential oscillation in methanol electrooxidation is the result of the feedback of electrode potential e on the reactions in- volving poison mediates CO and oxygen-containing species H2Oa. The numerical analysis of the estab- lished model successfully explains why the potential oscillation in methanol galvanostatic oxidation on a Pt electrode only happens in a certain range of current densities but not at any current density.

关键词： methanol electrooxidation electrochemical kinetics dual path reaction mechanism electrochemical oscillation bifurcation

Three-dimensional printing for heart diseases: clinical application review

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

Bio-Design and Manufacturing 2021年第3期4卷 675-687页

作者： Yanyan Ma Peng Ding lanlan li Yang liu Ping Jin Jiayou Tang Jian Yang Department of Cardiovascular Surgery Xijing HospitalAirforce Medical UniversityXi’an 710032China

Heart diseases remain the top threat to human health,and the treatment of heart diseases changes with each passing *** evidence shows that three-dimensional(3D)printing allows for a more precise understanding of the complex anatomy associated with various heart *** addition,3D-printed models of cardiac diseases may serve as effective educational tools and for hands-on simulation of surgical *** introduce examples of the clinical applications of different types of 3D printing based on specific cases and clinical application scenarios of 3D printing in treating heart *** also discuss the limitations and clinically unmet needs of 3D printing in this context.

关键词： Three-dimensional printing Congenital heart disease Transcatheter aortic valve replacement Heart diseases Cardiac imaging techniques

Intrinsically bioactive and biomimetic nanoparticle-derived therapies alleviate asthma by regulating multiple pathological cells

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

Bioactive Materials 2023年第10期28卷 12-26页

作者： Jiajun Cai Hui Tao Huan liu Yi Hu Songling Han Wendan Pu lanlan li Gang li Chenwen li Jianxiang Zhang Department of Pharmaceutics College of PharmacyThird Military Medical University(Army Medical University)Chongqing400038PR China Department of Pharmacology College of PharmacyThird Military Medical University(Army Medical University)Chongqing400038PR China State Key Laboratory of Trauma Burns and Combined InjuryThird Military Medical University(Army Medical University)Chongqing400038PR China Department of Pharmaceutical Analysis College of PharmacyThird Military Medical University(Army Medical University)Chongqing400038PR China

Asthma is a serious global public health concern. Airway neutrophilic inflammation is closely related to severe asthma, for which effective and safe therapies remain to be developed. Here we report nanotherapies capable of simultaneously regulating multiple target cells relevant to the pathogenesis of neutrophilic asthma. A nanotherapy LaCD NP based on a cyclic oligosaccharide-derived bioactive material was engineered. LaCD NP effectively accumulated in the injured lungs of asthmatic mice and mainly distributed in neutrophils, macrophages, and airway epithelial cells after intravenous or inhalation delivery, thereby ameliorating asthmatic symptoms and attenuating pulmonary neutrophilic inflammation as well as reducing airway hyperresponsiveness, remodeling, and mucus production. Surface engineering via neutrophil cell membrane further enhanced targeting and therapeutic effects of LaCD NP. Mechanistically, LaCD NP can inhibit the recruitment and activation of neutrophils, especially reducing the neutrophil extracellular traps formation and NLRP3 inflammasome activation in neutrophils. Also, LaCD NP can suppress macrophage-mediated pro-inflammatory responses and prevent airway epithelial cell death and smooth muscle cell proliferation, by mitigating neutrophilic inflammation and its direct effects on relevant cells. Importantly, LaCD NP showed good safety performance. Consequently, LaCD-derived multi-bioactive nanotherapies are promising for effective treatment of neutrophilic asthma and other neutrophil-associated diseases.

关键词： Neutrophilic asthma Nanotherapy Neutrophil extracellular traps Inflammasome Precision therapy

Engineering cobalt sulfide/oxide heterostructure with atomically mixed interfaces for synergistic electrocatalytic water splitting

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Nano Research 2022年第2期15卷 1246-1253页

作者： Xiaoyang Wang Yu He Xiaopeng Han Jun Zhao lanlan li Jinfeng Zhang Cheng Zhong Yida Deng Wenbin Hu School of Materials Science and Engineering Tianjin Key Laboratory of Composite and Functional MaterialsKey Laboratory of Advanced Ceramics and Machining Technology of Ministry of EducationTianjin UniversityTianjin 300072China School of Materials Science and Engineering Hebei University of TechnologyTianjin 300130China

It remains challenging to develop economical and bifunctional electrocatalysts toward oxygen/hydrogen evolution reactions(OER/HER).Herein,we construct Co_(9)S_(8) nanoflakes decorated Co_(3)O_(4) nanoarrays with enriched heterogeneous interface zones on Ni foam(Co_(9)S_(8)@CO_(3)O_(4)/NF)via a novel step-wise *** Co_(9)S_(8)@Co_(3)O_(4)/NF hybrid manifests excellent performance with low overpotentials of 130 mV for HER(10 mA·cm^(-2))and 331 mV for OER(100 mA·cm^(-2)),delivering a small voltage of 1.52 V for water splitting at 10 mA·cm^(-2) as well as outstanding catalytic durability,which surpasses precious metals and previously reported earth-abundant *** experimental and theoretical investigations demonstrate that the excellent performance is attributed to the followings:(i)Highly conductive Ni facilitates the efficient charge transfer;(ii)porous core-shell nanoarchitecture benefits the infiltration and transportation of gases/ions;(iii)heterogeneous interface zones synergistically lower the chemisorption energy of hydrogen/oxygen *** work will shed light on the controllable synthesis and engineering of heterostructure nanomaterials for clean energy storage and conversion technologies.

关键词： nanocomposite heterointerface electrocatalysis oxygen evolution reaction hydrogen evolution reaction

A review of brain imaging biomarker genomics in Alzheimer’s disease:implementation and perspectives

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Translational Neurodegeneration 2022年第1期11卷 294-330页

作者： lanlan li Xianfeng Yu Can Sheng Xueyan Jiang Qi Zhang Ying Han Jiehui Jiang School of Information and Communication Engineering Shanghai UniversityShanghai 200444China School of Biomedical Engineering Hainan UniversityHaikou 570228China Department of Neurology Xuanwu Hospital of Capital Medical UniversityBeijing 100053China Institute of Biomedical Engineering School of Life ScienceShanghai UniversityShanghai 200444China.

Alzheimer’s disease(AD)is a progressive neurodegenerative disease with phenotypic changes closely associated with both genetic variants and imaging *** imaging biomarker genomics has been developed in recent years to reveal potential AD pathological mechanisms and provide early *** technique integrates multimodal imaging phenotypes with genetic data in a noninvasive and high-throughput *** this review,we summarize the basic analytical framework of brain imaging biomarker genomics and elucidate two main implementation scenarios of this technique in AD studies:(1)exploring novel biomarkers and seeking mutual interpretability and(2)providing a diagnosis and prognosis for AD with combined use of machine learning methods and brain imaging biomarker ***,we highlight the necessity of brain imaging biomarker genomics,discuss the strengths and limitations of current methods,and propose directions for development of this research field.

关键词： Imaging biomarker genomics Alzheimer’s disease Evolving technologies Implementation

Effects of metabolizable energy and crude protein levels on laying performance,egg quality and serum biochemical indices of Fengda-1 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

Animal Nutrition 2016年第2期2卷 93-98页

作者： Yang Ding Xingchen Bu Nannan Zhang lanlan li Xiaoting Zou Key Laboratory of Animal Nutrition and Feed Science Ministry of Agriculture Zhejiang Provincial Laboratory of Feed and Animal Nutrition Feed Science Institute Zhejiang University

This study was conducted to investigate the effects of dietary ME and CP levels on laying performance, egg quality and serum biochemical indices of Fengda-1 layers. In a 2 × 3 factorial arrangement, 2,400 Fengda-1 layers(32 wk of age) were randomly assigned to 6 experimental diets with 2,650 and 2,750 kcal of ME/kg of diet, each containing 14.50%, 15.00% and 15.50% CP, respectively. Each dietary treatment was replicated 5 times, and feed and water were provided ad libitum. The trial lasted for 10 wk, including a2-week acclimation period and an 8-week experimental period. Our results showed that ADFI decreased as the ME level of diet increased from 2,650 to 2,750 kcal/kg(Plity than those fed with 2,650 kcal/kg ME(P lity, or serum biochemical indices(P > 0.05). Based on the data under the experimental conditions, the optimal dietary ME and CP levels of Fengda-1 layers are 2,650 kcal/kg and 15.00%(33 to 41 wk of age).

关键词： Energy Protein Laying performance Egg quality Fengda-1 layers