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Toward long-range adaptive communication via information centric networking

Intelligent and Converged Networks 2021年第1期2卷 1-15页

作者： Anthony Dowling Lauren Huie Laurent Njilla Hong Zhao Yaoqing Liu Department of Electrical and Computer Engineering Clarkson UniversityPotsdamNY 13676USA the air force research laboratory information directorate in rome RomeNY 13441USA the Department of Electrical and Computer Engineering Fairleigh Dickinson UniversityTeaneckNJ 07666USA the Gildart Haase School of Computer Sciences and Engineering Fairleigh Dickinson UniversityTeaneckNJ 07666USA

As Internet of Things(IoT)applications become more prevalent and grow in their use,a limited number of wireless communication methods may be unable to enable dependable,robust delivery of *** is necessary to enable adaptive communication and interoperability over a variety of wireless communication media to meet the requirements of large-scale IoT *** paper utilizes Named Data Networking(NDN),an up-and-coming information-Centric Network architecture,to interconnect differing communication links via the network layer,and implements dynamic forwarding strategies and routing mechanisms which aid in the efficient dissemination of *** work targets the creation of an interface technique to allow NDN to be transported via *** is acheived via the coupling of LoRa and WiFi using the NDN Forwarding Daemon(NFD)to create a universal ad hoc *** network has the capacity for high range and multi-hop Device-to-Device(D2D)communication together with compatibility with other network communication *** of the system in a real environment has shown that the newly created ad hoc network is capable of communicating over a several kilometer radius,while making use of the features provided by NDN to capitalize upon various links available to enable the efficient dissemination of ***,the newly created network leverages NDN features to enable content-based routing within the LoRa network and utilize content-based routing techniques.

关键词： Named Data Networking(NDN) ad hoc network device-to-device communication

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Visualization of real-time displacement time history superimposed with dynamic experiments using wireless smart sensors and augmented reality

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Earthquake Engineering and Engineering Vibration 2023年第3期22卷 573-588页

作者： Marlon Aguero Derek Doyle David Mascarenas Fernando Moreu Department of Civil Construction and Environmental EngineeringUniversity of New MexicoCentennial Engineering Center 3056MSC011070210 University Blvd NEAlbuquerqueNM 87131USA air force research laboratory Space Vehicles DirectorateKirtland Air Force BaseAlbuquerqueNM 87117USA Engineering Institute Los Alamos National LaboratoryLos AlamosNM 8754USA

Wireless smart sensors(WSS)process field data and inform inspectors about the infrastructure health and *** bridge engineering,inspectors need reliable data about changes in displacements under loads to make correct decisions about repairs and *** to displacement information in the field and in real-time remains a challenge as inspectors do not see the data in real *** data from WSS in the field undergoes additional processing and is seen at a different *** inspectors were able to see structural displacements in real-time at the locations of interest,they could conduct additional observations,creating a new,information-based,decision-making reality in the *** paper develops a new,human-centered interface that provides inspectors with real-time access to actionable structural data during inspection and monitoring enhanced by augmented reality(AR).It summarizes and evaluates the development and validation of the new human-infrastructure interface in laboratory *** experiments demonstrate that the interface that processes all calculations in the AR device accurately estimates dynamic displacements in comparison with the *** this new AR interface tool,inspectors can observe and compare displacement data,share it across space and time,visualize displacements in time history,and understand structural deflection more accurately through a displacement time history visualization.

关键词： wireless smart sensor monitoring augmented reality displacement acceleration human-infrastructure interface

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空间通信认知干扰机的干扰／抗干扰博弈

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通信对抗 2016年第2期35卷 57-62页

作者： Xin Tian Zhi Tian Khanh Pham Erik Blasch Dan Shen 周华吉(翻译) 杨红娃(审校) Intelligent Fusion Technology Inc Gaithersburg MD USA 20878 ECE Dept. Michigan Technological University 1400 Townsend Drive Houghton MI USA 49931 air force research laboratory Space Vehicles Directorate Kirtland A FB NM USA 87117 air force research laboratory Information Directorate Rome NY USA 13441 不详

在空间通信背景下研究了认知干扰/抗干扰的基本问题。场景包括一对发射机、接收机和一部认知干扰机。假定认知干扰机拥有强大的频谱感知能力,能够检测数据通过信道从发射机到接收机的传输过程。相应地,干扰机采用"检测与干扰"策略;发射... 详细信息

在空间通信背景下研究了认知干扰/抗干扰的基本问题。场景包括一对发射机、接收机和一部认知干扰机。假定认知干扰机拥有强大的频谱感知能力,能够检测数据通过信道从发射机到接收机的传输过程。相应地,干扰机采用"检测与干扰"策略;发射机-接收机端使用跳频扩展频谱的方法抑制干扰影响。干扰机与发射机-接收机之间基本的干扰/抗干扰问题被建模为二人零和博弈问题。对于频谱感知,假定干扰机采用滑动窗口能量检测,即滑窗能量检测。作为发射机-接收机端的保守策略,在多种情况下获得了干扰/抗干扰博弈的最大最小解。讨论了各种因素如信号传播时延、信道带宽、干扰机/接收机端信噪比等对博弈结果的影响。结果为评估干扰机对空间通信链路的潜在威胁,及空间传输网络抗干扰配置提供了重要信息。

关键词：空间传输认知干扰机滑动窗口能量检测抗干扰博弈

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Predictive value of alarm symptoms in patients with rome IV dyspepsia: A cross-sectional study

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World Journal of Gastroenterology 2020年第30期26卷 4523-4536页

作者： Zhong-Cao Wei Qian Yang Qi Yang Juan Yang Xin-Xing Tantai Xin Xing Cai-Lan Xiao Yang-Lin Pan Jin-Hai Wang Na Liu Department of Gastroenterology The Second Affiliated HospitalXi’an Jiaotong UniversityXi’an 710004Shaanxi ProvinceChina Department of Gastroenterology Xi’an No.3 Hospitalthe Affiliated Hospital of Northwest UniversityXi’an 710018Shaanxi ProvinceChina State Key laboratory of Cancer Biology National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive DiseasesAir Force Medical UniversityXi’an 710032Shaanxi ProvinceChina

BACKGROUND No studies have evaluated the predictive value of alarm symptoms for organic dyspepsia and organic upper gastrointestinal(GI)diseases based on rome IV criteria in the Chinese *** To evaluate the predictive value of alarm symptoms for dyspeptic patients based on rome IV *** We performed a cross-sectional study of dyspepsia patients who met the inclusion and exclusion criteria at two academic urban tertiary-care centers from March 2018 to January *** demographic data,dyspeptic information,alarm symptoms,lifestyle,examination results,family history and outpatient cost information were *** patients with normal findings on upper GI endoscopy,epigastric ultrasound and laboratory examination and without Helicobacter pylori-associated dyspepsia were classified as functional *** A total of 381 patients were enrolled in the study,including 266 functional dyspepsia patients and 115 organic dyspepsia *** were 24 patients with organic upper GI disease among patients with organic *** found that based on the rome IV criteria,alarm symptoms were of limited value in differentiating organic dyspepsia and organic upper GI diseases from functional ***(odds ratio(OR)=1.056,P=0.012),smoking(OR=4.714,P=0.006)and anemia(OR=88.270,Prome,postprandial distress syndrome and epigastric pain syndrome combined with postprandial distress syndrome,the results showed that there were statistically significant differences in anorexia(P=0.021)and previous visits(P=0.012).The *** number is NCT *** Most alarm symptoms had poor predictive value for organic dyspepsia and organic upper GI diseases based on rome IV *** screening should not be based solely on alarm symptoms.

关键词： rome IV Dyspepsia Alarm symptoms Prediction

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Mass Transport in Nanowire Synthesis:An Overview of Scalable Nanomanufacturing

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Journal of Materials Science & Technology 2015年第6期31卷 523-532页

作者： Matthew J.Crane Peter J.Pauzauskie Department of Chemical Engineering University of WashingtonSeattleWA 98195-1750.USA Department of Materials Science & Engineering Seattle.WA 98195-2120USA Fundamental Computational Science directorate Pacific Northwest National LaboratoryRichland.WAUSA

The ability to rationally engineer the growth and nanomanufacturing of one-dimensional nanowires in high volumes has the potential to enable applications of nanoscale materials in a diverse range of fields including energy conversion and storage,catalysis,sensing,medicine,and information *** review provides a roadmap for the development of large-scale nanowire *** myriad techniques exist for bench-scale nanowire synthesis,these growth strategies typically fall within two major categories:1) anisotropically-catalyzed growth and 2) confined,template-based ***,comparisons between growth methods with different mass transport pathways have led to confusion in interpreting observations,in particular Gibbs-Thomson *** review mass transport in nanowire synthesis techniques to unify growth models and to allow for direct comparison of observations across different *** addition,we discuss the applicability of nanoscale,Gibbs-Thomson effects on mass transport and provide guidelines for the development of new growth *** explore the scalability of these complex processes with dimensionless numbers and consider the effects of pressure,temperature,and precursor material on nanowire growth.

关键词： Nanowire Mass transport Modeling Scalable growth

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Scanning Electrochemical Microscopy for Chemical Imaging and Understanding Redox Activities of Battery Materials

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Chemical & Biomedical Imaging 2023年第2期1卷 110-120页

作者： Lyndi E.Strange Xiao Li Eric Wornyo Md Ashaduzzaman Shanlin Pan Pacific Northwest National laboratory Energy and Environment DirectorateRichlandWashington 99352United States of America The University of Alabama Department of Chemistry and BiochemistryTuscaloosaAlabama 99354United States of America Eric Wornyo−The University of Alabama Department of Chemistry and BiochemistryTuscaloosaAlabama 99354United States of America

Improving the charge storage capacity and lifetime and charging/discharging efficiency of battery systems is essential for large-scale applications such as long-term grid storage and long-range *** there have been substantial improvements over the past decades,further fundamental research would help provide insights into improving the cost effectiveness of such *** example,it is critical to understand the redox activities of cathode and anode electrode materials and stability and the formation mechanism and roles of the solid−electrolyte interface(SEI)that forms at the electrode surface upon an external potential *** SEI plays a critical role in preventing electrolyte decay while still allowing charges to flow through the system while serving as a charge transfer *** surface analytical techniques such as X-ray photoelectron(XPS),X-ray diffraction(XRD),time-of-flight secondary ion mass spectrometry(ToF-SIMS),and atomic force microscopy(AFM)provide invaluable information on anode chemical composition,crystalline structure,and morphology,they are often performed ex situ,which can induce changes to the SEI layer after it is removed from the *** there have been efforts to combine these techniques using pseudo-in situ approaches via vacuum-compatible devices and inert atmosphere chambers connected to glove boxes,there is still a need for true in situ techniques to obtain results with improved accuracy and *** electrochemical microscopy(SECM)is an in situ scanning probe technique that can be combined with optical spectroscopy techniques such as Raman and photoluminescence spectroscopy methods to gain insights into the electronic changes of a material as a function of applied *** Review will highlight the potential of SECM and recent reports on combining spectroscopic measurements with SECM to gain insights into the SEI layer formation and redox activities of other battery electrode *** insi

关键词： SECM SEI battery scanning probe imaging LIB in situ imaging electrochemical characterization energy storage development redox-flow battery

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Design,Modeling and Experimentation of a Biomimetic Wall-climbing Robot for Multiple Surfaces

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Journal of Bionic Engineering 2020年第3期17卷 523-538页

作者： Jinfu Liu Linsen Xu Jiajun Xu Tao Li Shouqi Chen Hong Xu Gaoxin Cheng Marco Ceccarelli Institute of Advanced Manufacturing Technology Hefei Institutes of Physical ScienceCASChangzhou 213164China Department of Precision Machinery and Precision Instrumentation University of Science and Technology of ChinaHefei 230026China Anhui Province Key laboratory of Biomimetic Sensing and Advanced Robot Technology Hefei 230026China Department of Industrial Engineerings University of rome Tor Vergata Via del Politecnico 100133RomaItaly

Wall-climbing robots can work on steep terrain and obtain environment information in three dimensions for human in real time,which can improve operation ***,traditional single-mode robots cannot ensure the stable attachment on complex wall *** by the structure characteristics of flies and clingfishes,three bionic structures including the flexible spine wheel,the adhesive material and the adsorption system are *** at task requirements on multiple walls and based on the above three bionic structures,a wall-climbing robot with the composed mode of“grabbing+adhesion+adsorption”is presented v/a the law of mechanism configuration *** static analysis,the safe attachment conditions for the robot on smooth and rough walls are that the adsorption force is 30 N or *** on Newton's Euler and Lagrange formulas,the dynamic equations of the robot on vertical walls are established to deduce that the maximum theoretical torque of the driving motor is 1.43 N·m at a uniform ***,the prototype of the wall-climbing robot is manufactured and tested on the vertical lime wall,coarse sandpaper wall and acrylic ceiling ***,experiment results imply that the average maximum moving speed and the corresponding load are 7.19 cm·s-1 and 0.8 kg on the vertical lime wall,7.78 cm·s-1 and 0.6 kg on the coarse sandpaper wall,and 5.93 cm·s-1 and 0.2 kg on the acrylic ceiling wall *** findings could provide practical reference for the robot’s application on walls.

关键词： wall-climbing robot spine wheel adhesive material adsorption system

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