Network Planning Method and Simulation Analysis for Large-Scale Low Earth Orbit Satellite Constellation Networks by Lixiang LIU, Shuaijun LIU

“…Thanks to the advantages of global coverage, high capacity and low latency, the large-scale LEO satellite constellation networks has become a hot spot for global development.However, planning methods and simulation modeling research for LS-LEOSCN has not been well studied.This paper focused on the following two issues, namely how to evaluate a given LSLEOSCN, and how to design or optimize a constellation network.Three key indicators for evaluating the performance of LSLEOSCN were established, namely network coverage (CT), system throughput (ST) and round-trip time (RTT).Further, the satellite constellation deployment (SCD), gateway station deployment (GSD) were analyzed and designed in the integrated network evaluation and planning (NEaP) platform for LS-LEOSCN.The simulation results showed that the designed NEaP platform could support the development of LS-LEOSCN evaluation and planning.…”
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Research of the Flexible Modeling and Its Application of Mechanical Drive System by Qiu Haifei

“…In view of the error influence of rigid structure,the flexible modeling technology is applied to drive system design of reducer. The finite element modeling and modal calculating about its parts are carried out by using ANSYS platform,and the flexible design of the reducer is realized through a way of replacing the parts’ MNF file,thus then a simulation model of the virtual prototype of flexible reducer is set up based on ADAMS /View platform. …”
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Number of Patients per Cohort and Sample Size Considerations Using Dose Escalation with Overdose Control by Mourad Tighiouart, André Rogatko

“…In practice, most of these trials are designed so that three patients per cohort are treated at the same dose level. …”
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Research on Interactive Art Online Teaching System Based on BS Mode and Internet of Things by Yang Ying, Wang Hongyan

“…Therefore, this paper designs an interactive online art teaching system based on BS mode and IoT. …”
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Research on security architecture of strong PUF by adversarial learning by Yan LI, Wei LIU, Yuanlu SUN

“…To overcome the vulnerability of strong physical unclonable function, the adversarial learning model of strong PUF was presented based on the adversarial learning theory, then the training process of gradient descent algorithm was analyzed under the framework of the model, the potential relationship between the delay vector weight and the prediction accuracy was clarified, and an adversarial sample generation strategy was designed based on the delay vector weight.Compared with traditional strategies, the prediction accuracy of logistic regression under new strategy was reduced by 5.4% ~ 9.5%, down to 51.4%.The physical structure with low overhead was designed corresponding to the new strategy, which then strengthened by symmetrical design and complex strategy to form a new PUF architecture called ALPUF.ALPUF not only decrease the prediction accuracy of machine learning to the level of random prediction, but also resist hybrid attack and brute force attack.Compared with other PUF security structures, ALPUF has advantages in overhead and security.…”
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AN INNOVATIVE APPROACH TO THE DEVELOPMENT OF MASTER PROGRAMME IN TEACHER EDUCATION by E. N. PEREVOSHCHIKOVA

“…Basing on the modular approach there are designed educational modules: conceptual module, design module, technological module, the diagnostic module, electronic educational module, management. …”
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Dynamics and Statics Analysis of Manipulator of Coalmine Detection Robot by Li Yang, Liu Sumei, Qu Dongdong, Shi Mingming

“…The robot system components are described,the dynamics and static analysis of the 5 degrees of freedom manipulator is conducted to verify the rationality of its structural design and bearing performance in practical work. …”
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Investigation of an Autofocusing Method for Visible Aerial Cameras Based on Image Processing Techniques by Zhichao Chen, Tao Zhang

“…The proposed autofocusing system is designed and implemented using two CMOS detectors. …”
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Code-based generalized signcryption scheme with multi-receiver by Yiliang HAN, Zhong WANG

“…In order to solve the problem of secure transmission of messages with multiple receivers,a code-based generalized signcryption scheme with multi-receiver was designed.Firstly,a multi-encrypted McEliece scheme that can meet the security of IND-CCA2 was designed.Combined with the CFS signature scheme,the multi-receiver signcryption and generalized signcryption scheme based on code were designed.The security analysis shows that the multi-receiver generalized signcryption scheme can meet the security of IND-CCA2 in terms of confidentiality and can meet EUF-CMA security in terms of unforgeability.Compared with other similar multi-receiver signcryption schemes,the proposed scheme does not include exponential,bilinear pairing operations,etc.…”
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Chiral All-Dielectric Metasurface Based on Elliptic Resonators with Circular Dichroism Behavior by Ali Yahyaoui, Hatem Rmili

“…We present the design of a new microwave all-dielectric chiral metasurface with circular dichroism behavior based on elliptic dielectric resonators (EDRs). …”
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Trusted solution monitoring system based on ZigBee wireless sensor network by Tian-shu WANG, Gong-xuan ZHANG, Xi-chen YANG

“…In the greenhouse environment,the concentration of nutrient solution was always ignored.At the same time,the core node coordinator of the ZigBee wireless monitoring system was easily compromised.A trusted solution monitoring system based on ZigBee wireless sensor network was designed and implemented.Firstly the hardware structure of sensor,router and coordinator was introduced.Then the processes of external voltage measurement and data cleaning were illustrated.For realizing the trusted boot of the coordinator,trusted u-boot to measure the integrity of some key files was designed.Experimental results show that the solution concentration data could be sent from each node to the monitoring computer and the remote terminal.At the same time,the trusted module of the coordinator can detect the captured coordinator node and warning.Therefore,the designed system has strong function and security.…”
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Temporary city between emergency and recovery by Roberto Ruggiero

“…The paper presents the first results of a scientific-design research carried out at the School of Architecture and Design Eduardo Vittoria of Ascoli Piceno (SAAD) of the University of Camerino concerning the transformation of post-disaster first emergency settlements into temporary urban systems capable of reactivating social and productive dynamics.…”
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A Review of Research and Writing Textbook by Mohammad Armand

“…Therefore, it is necessary to be very careful about how they are designed and edited. Works on textbook design and authoring have been published, one of which is textbook research and writing that can be used by scholars, authors, and textbook contributors. …”
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Load Spectrum Test and Analysis of Off-road Vehicle Transmission System based on Pascar Test Specification by Zou Xihong, Liu Yanlong, Zhao Qiulin, Zhu Xiang, Yu Yong

“…Automotive transmission system load spectrum is the indispensable data foundation of automotive transmission system designing,testing and evaluating.Aiming at the off-road vehicle transmission system of an enterprise,considering the design,test,analysis other purposes,choosing the measured parameters of torque,speed,gear position,brake pedal station,clutch pedal position,lubricating oil temperature,strain,acceleration signals and etc signals,the complete synchronous test scheme for transmission system load spectrum is constructed.Rounded and accurate measurement of the transmission system load spectrum based on the Pascar test specification provide basic data and important guidance for the design,test,analysis of automotive transmission system.Wireless torque measurement problem and the synchronization problem of different channels are solved and a complete solution scheme of data collection for automotive transmission system is provided.…”
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The Experimental Investigation of the Optimization of the Flow State of a Ladder-Shaped Spillway in a Certain Reservoir by Xin-Bao Gu, Yang Zhang, Qi-Hong Wu, Yong Wang

“…The original design scheme of ladder-shaped spillways in certain reservoirs is improved by using a hydraulic similar model experiment. …”
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RESEARCH ON UPDATING TECHNOLOGY OF DYNAMIC MODEL FOR COMPLEX ELECTRONIC EQUIPMENT by WANG ChangWu, WU JingKai

“…Before the production of products,it is the mainstream mode of equipment research and development to use the digital design or simulation technologies to comprehensively evaluate and optimize their performance. …”
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Research on Space-Based Integrated Internet of Things Architecture and Interference Analysis by Gengxin ZHANG, Xiaojin DING, Zhicheng QU

“…Considering “internet of everything” of the future internet of things (IoT), the space-based integrated IoT architecture was designed, and the interference scenarios of the coexistence of satellite and ground was analyzed, with the aid of analyzing the architectures of the spatial information network and space-based access network.Specifi cally, fi rstly, relying on both the integration of satellite network and ground network, and the advanced design concept of decoupling control and data, a spacebased satellite IoT architecture was designed in the presence of the specifi c characteristics of access network and terminals, which included space-based backbone network, space-based access network, ground-based IoT, core network and multimodal IoT terminals.Moreover, the process of space-based control plane was also given.Secondly, interference analysis was carried out for satellite spectrum sharing scenario and satellite-ground spectrum sharing scenario respectively, and preliminary analysis results were presented.…”
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Modeling and Profile Analysis of Globoidal Cam in Automatic Tool Changer by Yu Jianwu, Luo Hong, Shu Xin, Wu Yao, Wen Cheng, Hu Qifeng

“…After globoidal cam profile performance analysis and machining practice,the designed globoidal cam model is verified to meet the design and machining requirements,which provides technical support for improving its finish grinding accuracy.…”
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Development of the Method for Calculation of Reinforced Concrete Structures on the Formation and Opening of Normal Cracks by Nikolay N. Trekin, Emil N. Kodysh, Sergey G. Parfenov, Konstantin R. Andrian

“…This paper presents the history of the development of the method for calculating the crack resistance of reinforced concrete elements according to Soviet and modern design standards, which was based on the work of the Soviet and foreign scientists, such as: A.F. …”
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History narrative construction of product aesthetics: artistic cultural expression from form to emotion by Song Qiao, Yuhong Zhang

“…This article not only provides a theoretical framework for understanding the relationship between aesthetics and emotional expression in product design, but also provides practical guidance for designers to create products with more emotional value. …”
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