Trusted storage mechanism of distributed electric energy data based on blockchain by Jin LI, Songqi WU, Senlin ZHANG, Yueming LU

“…Facing the problems of central single point failure and malicious tampering in the centralized storage of electric energy data,a trusted storage mechanism including identity authentication,sensor data upload,IPFS storage,blockchain upload and access verification was proposed by building the inter satellite storage consortium blockchain (ISCB) of electric energy data based on the decentralized,tamper proof and highly expandable characteristics of blockchain.In view of the characteristics of electric energy data,such as wide source and large capacity,the blockchain technology was combined with the inter planetary file system (IPFS),and the data hash and query attributes returned by IPFS were saved on the chain,so as to effectively solve the problems of storage expansion and data tampering identification of electric energy data blockchain.…”
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QUANTUM INTERFEROMETER FOR LIMITED MEASUREMENTS by I. E. Zuikov

“…The perspectives of usage of such resonator as a precession proximity sensor is shownThe necessity of methods and devices for modern medical linear accelerators quality control development is discussed. …”
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Review of Recent Development on Preparation, Properties, and Applications of Cellulose-Based Functional Materials by Ya-Yu Li, Bin Wang, Ming-Guo Ma, Bo Wang

“…For convenience, to introduce the recent development of these cellulose-based functional composites, we divided them to seven categories, including biological applications, water treatment, sensor, reinforcing agent, energy storage materials, Pickering emulsion stabilizer, and other versatile applications. …”
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Passive Localization of 3D Near-Field Cyclostationary Sources Using Parallel Factor Analysis by Jian Chen, Guohong Liu, Xiaoying Sun

“…Firstly, we construct a parallel factor (PARAFAC) analysis model by computing the third-order cyclic moment matrices of the properly chosen sensor outputs. Then, we analyze the uniqueness of the constructed model and obtain three-dimensional (3D) near-field parameters via trilinear alternating least squares regression (TALS). …”
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Synthesis, Adsorption, and Recognition Properties of a Solid Symmetric Tetramethylcucurbit[6]uril-Based Porous Supramolecular Framework by Fei-Yang Tian, Rui-Xue Cheng, Yun-Qian Zhang, Zhu Tao, Qian-Jiang Zhu

“…Thus, the TMeQ[6]-based supramolecular framework could be used as a sensor for certain gas or volatile compounds.…”
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Smart factory solutions based on cellular industrial Internet of things by Shulei GONG, Kun LI, En TONG, Hongde GUO, Yi ZHOU, Ye WANG, Fei DING

“…So far,the overall informatization level of manufacturing industry has been uneven,and there are many problems such as low intelligence and poor connectivity.First of all,with the features like low power consumption of the Internet of things,the sensor devices can be deployed flexibly to realize real-time collection and transmission of production data.Then the manufacturing execution system based on the cellular industrial Internet of things had been built,and realized the closed-loop processing of human,machine,material,method and surrounding.The industrial big data of the whole production process was modeled,analyzed and processed.The operation and maintenance cost was reduced,and the production efficiency and product quality were improved.Finally,the overall efficiency of the application was evaluated which showed that the factory capacity was improved effectively.…”
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APPLICATION OF THE FULL VECTOR SPECTRUM BASED ON EMD IN FAULT DIAGNOSIS OF BEARINGS by CHEN Chao, MENG YaJun, DU YunLong, HUANG ChuanJin

“…Aiming at the deficiency of the analysis of single channel signal EMD and dual channel signal traditional full vector spectrum analysis,this paper presents the full vector spectrum extraction based on EMD.The method of vibration signals collected from the same cross section of the two perpendicular on the sensor,then use EMD on each signal respectively,so that the two signals are decomposed into several IMF components.By the fusion of the IMF component,we can get the full vector spectrum based on obtained EMD.The simulation results show that,the method of obtaining fault characteristics is more comprehensive,accurate.The analysis results of bearing fault vibration signals of TRT generating units in a power rating of3000 KW,further shows the feasibility and effectiveness of the method.…”
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RSS-TOA based localization algorithm in non-line-of-sight environment by Zhigang LU, ·ouming LI, Xianghong JIA, Shengming CHANG, Xiaoli WANG

“…The existence of non-line-of-sight (NLOS) error can degrade the positioning performance in wireless sensor network localization system,especially in indoor localization.To overcome the localization error caused by NLOS propagation,a localization algorithm was proposed based on received signal strength (RSS) and time-of-arrival (TOA).Firstly,a non-convex optimization problem was established based on RSS and TOA.Then,the original non-convex optimization problem was transformed into a convex optimization problem through the second-order cone relaxation technique,therefore a sub-optimal solution to the original problem could be obtained efficiently.Finally,computer simulation results show that the proposed method can provide higher estimation accuracy and better performance.…”
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Sensitivity Enhancement of Heterocore Macrobend Fiber Optics by Adding a ZnO Film by Noor Azie Azura Mohd Arif, Dilla Duryha Berhanuddin, Abang Annuar Ehsan

“…Optical fibers with high sensitivity are in demand due to their great potential in sensor application. Semiconductors, such as ZnO, are good materials. …”
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A compressive data gathering method based on El Gamal cryptography by Xiaohan YU, Keming DONG, Xia LI, Chao CHEN

“…As a hot researching area,compressive sensing has advantages in signal process,image processing and data gathering and analysis.How to effectively and safely apply compressive sensing technology to collect data in wireless sensor networks is studied.Conventional compressive sensing technology based data collection method does not consider the security issue.Furthermore,every nod in the network must participate in the process of collecting measurements.The El Gamal cryptography and sparse matrices based compressive sensing technology were combined,and the El Gamal based sparse compressive data gathering (ESCDG) method was proposed.Theoretical analysis and numerical experiments show that ESCDG not only decreases the network resource consumption but also be able to defense the internal and external attacks.…”
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Development and Performance Evaluation of a Rain Shade for a low scale Agricultural Produce by MN Akhaze, AA Bamidele

“…C motor, 12V battery, sensor, a roller tube in which a polyester fabric is wound, two extension arms attached directly to the roller tube that pulls out the fabric when the device is open to protect a designated area from rain and pulls it back when the rain stops and a stand. …”
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Channel estimation method based on compressive sensing for FBMC/OQAM system by Weina YUAN, Qiu YAN

“…In mobile-to-mobile sensor networks,the channel estimation for FBMC/OQAM system can be investigated as a compressive sensing problem to raise frequency spectrum efficiency by exploiting the sparse nature of wireless channels.Firstly,a novel orthogonal matching pursuit algorithm with selection weak strategy and regularization based on Tanimoto coefficient (T-SWROMP) was proposed to improve the accuracy of LS channel estimation.Then,T-SWROMP methods with auxiliary pilot and coding were used to estimate channel frequency response for FBMC/OQAM system.The experimental results demonstrate the proposed method has lower complexity than the traditional SWOMP method.In addition,it achieve best performance among the traditional OMP,SWOMP and ROMP methods under dual-selective channels.…”
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Identifying Initial Condition in Degenerate Parabolic Equation with Singular Potential by K. Atifi, Y. Balouki, El-H. Essoufi, B. Khouiti

“…This problem can be formulated in a least-squares framework, an iterative procedure which minimizes the difference between the given measurements and the value at sensor locations of a reconstructed field. The mathematical model leads to a nonconvex minimization problem. …”
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Research on Spatial Location of a Spherical 3-RRR Parallel Mechanism by Wang Li

“…Based on the spherical 3-RRR parallel robot, an angular displacement sensor bracket is added to detect the attitude angle of the moving platform, and the positioning deviation is transformed into a quaternion form. …”
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STUDY ON THE OPERATING CHARACTERISTICS OF UNLOADER OF RECIPROCATING COMPRESSOR STEPLESS CAPACITY REGULATION SYSTEM by ZHENG ZhaoXing, JIANG ZhiNong, WANG Yao, ZHANG JinJie

“…The displacement of the valve is measured by the eddy current displacement sensor. On the basis of this, the operation of the unloader under different oil supply pressure and different ejection time is simulated, the ideal hydraulic ejection force and the ejection phase are determined. …”
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Low-power internet of underwater things: vision and key technologies by Yang LIU, Cuican LI, Mugen PENG

“…With the explosion of underwater sensing devices and the pursuit of energy conservation, the concept of low-power internet of underwater things has been put forward.Inspired by RF-based backscatter networks, the low-power internet of underwater things architecture uses underwater acoustic backscatter technology to realize the low-power and low-cost communication of underwater sensor nodes, which has a wide application prospect in underwater fields such as the long-term underwater detection.Firstly, the principle and architecture of low-power internet of underwater things was introduced.Then, the key technologies faced by the architecture were proposed and analyzed, such as perception, communication, networking, resource allocation, security and so on.Finally, the future research directions of low-power internet of underwater things were discussed.…”
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APLICAÇÃO DE METÓDOS ERGONOMICOS NA AVALIAÇÃO DE FERRAMENTAS PRODUZIDAS E UTILIZADAS POR HOMENS NA PRÉ-HISTÓRIA by Mariana Menin, José Carlos Plácido da Silva, Danilo Corrêa Silva, Luis Paschoarelli

“…Este estudo tem como objetivo averiguar e identificar os tipos de pegas/empunhaduras de duas ferramentas líticas brasileiras (um raspador/furador e uma lesma) com aproximadamente 5000 anos por meio do uso de luvas com sensores e mapas de contato da face palmar da mão explorando assim o melhor método para a investigação da ergonomia na pré- história. …”
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Evaluation of the Variability of Vibration Measurement Results in Rolling Bearing Quality Control by Paweł Zmarzły, Mateusz Wrzochal, Stanisław Adamczak

“…The study evaluates the influence of the measuring device and the location of the sensor on the result of the rolling bearing vibration monitoring process. …”
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Research of Fault Diagnosis Method of Rolling Bearing based on Improved CEEMDAN-TKEO by Xia Changfeng

“…First of all,the fault vibration signal measured by sensor is decomposed by using the method of Improved CEEMDAN and a number of intrinsic mode function（ IMF） is got,and the interference of noise components is weakened and the fault feature is enhanced by this method. …”
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Design and Development of a New Electrically Small 3D UHF Spherical Antenna with 360° of Opening Angle in the Whole Space for RFID, WSN, and RSN Applications by Abdelhamid Bou-El-Harmel, Ali Benbassou, Jamal Belkadid

“…The antennas form allows for placing the sensor electronics in its interior, to reconfigure it for numerous values of impedances and to operate it in other ISM bands by adjusting their geometric parameters.…”
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