Indoor EKF localization algorithm based on RFID carrier phase by Liangbo XIE, Xixi LIU, Yong WANG, Mu ZHOU, Zengshan TIAN

“…In order to solve the problem of low localization accuracy caused by indoor environment interference in the existing UHF RFID localization methods, an indoor extended Kalman filter (EKF) localization algorithm based on frequency hopping assisted RFID carrier phase was proposed.The virtual large bandwidth obtained by frequency hopping was used for rough distance estimation to realize multipath suppression, and the reliable dual frequency point selection and parameter optimization were completed through the phase after multipath suppression.Finally, EKF algorithm was used to realize high-precision and fast localization.Experimental results show that the average localization error of the proposed algorithm is 9.35 cm, and the real-time performance of the localization solution is nearly 10 times higher than the traditional integer solution method based on Chinese remainder theorem (CRT).…”
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An experimental approach to a variable-period damped oscillatory system similar to a bouncing ball and an adaptation to an electromagnetic brake by Tiago S. Pacheco, Edinei C. Paiva, Sebastião B. Amorim

“…The problem of a ball bouncing in n-hops, despite being a problem extremely easy to observe, is a problem treated by classical mechanics and which, to this day, is without an analytical solution, due to its complexity of mathematical modeling. …”
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Load-Balanced Secure Routing Protocol for Wireless Sensor Networks by Wang Xin-sheng, Zhan Yong-zhao, Wang Liang-min

“…Based on structured topology of hexagonal mesh, hops at different directions are calculated on the optimal route for transmitting data packets in LSRP. …”
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Performance of FTH-PPM multiple access technology in 60 GHz wireless communication system by Chen SHEN, Xuehua LI

“…Aiming at the problem of multiple access interference in 60 GHz pulse wireless communication system,the performance of system based on FTH-PPM multiple access scheme was studied.Under the IEEE 802.15.3.c channel model,the relationship between the bit error rate performance of the system and the number of frequency hopping codes,the signal to noise ratio and the number of users were analyzed.The characteristics of FTH-PPM multiple access modulation system were studied and compared with TH-PPM and TH-PAM schemes.The simulation results show that the system can meet the required bit error rate by changing the signal to noise ratio,the number of hops and the number of users.At the same time,the BER performance of FTH-PPM is better than that of TH-PAM and TH-PPM.The system can select the appropriate multiple access modulation mode according to the value of the pulse duty cycle.The research will provide technical reference for the application of 60 GHz pulse wireless communication.…”
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Performance analysis of the clustering-based multihop wireless energy harvesting sensor networks over symmetric and asymmetric fading channels by Vikash Singh, Hideki Ochiai

“…Moreover, we investigate the relationship between the total number of relay nodes in the network and the number of hops and show that there is an optimal number of hops that can maximize the throughput for a given transmission power of the source. …”
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Optimizing data retrieval latency in IoT through information centric in-network caching by Muhammad Ali Naeem, Meng Yahui, Ahmad Abrar

“…Caching is a significant technique for improving content accessibility, reducing hops while transferring data, and finally shortening data access time, which in turn improves IoT networks. …”
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Effects of Re on Vacancy Mobility in a Ni-Re System: An Atomistic Study by Nuttapong La-ongtup, Suttipong Wannapaiboon, Piyanut Pinyou, Worawat Wattanathana, Yuranan Hanlumyuang

“…With this technique, we compute the local energy barriers to vacancy hopping, tracer diffusivities, and migration energies of the low-concentration limit of Ni-Re alloys. …”
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An estimated Hungarian method for data forwarding problem in underwater wireless sensor networks by Jing Wen, Dongwei Li, Linfeng Liu, Jiabin Yuan

“…In underwater wireless sensor networks, the gathered data are sent to terrestrial control center through multi-hops for further processing. Underwater wireless sensor networks usually consist of three types of nodes: ordinary nodes, anchor nodes, and sink nodes. …”
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Low voltage user power internet of things monitoring system based on LoRa wireless technology by Xiao Wang, Wei Zhao, Xixian Niu

“…In addition, a multi-channel adaptive frequency hopping technology has been developed. The experimental results showed that the adaptive frequency hopping technology of the system could complete frequency switching within 2 min, which was more efficient than the traditional sampling and statistical technology that took 4 min. …”
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The investigation of the effects of the sports goalball on the level of some physical propriety of visually handicapped individuals by Ersin Arslan, H. Bayram Temur, İsrafil Aslan, Mahmut Aktı

“…In addition, the test of flexibility of subjects was applied twice and the highest grade was recorded.  In the hopping test, those completed the test were evaluated with (+), and those not completed the test were evaluated with (-). …”
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EPN:encryption padding for NTRU with provable security by MU Ning-bo, HU Yu-pu, WANG Bao-cang

“…Known as the fastest public key cryptosystem available now,the provable security of NTRU has not been solved well.an encryption padding,called EPN was designed,for NTRU.Under the full domain one wayness assumption of NTRU,EPN had been proved indistinguishable from adaptive chosen ciphertext attack by using the Game-Hopping technology in the random oracle model.Compared with present NAEP available,implement efficiency of EPN improves by 25%.…”
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Frame importance valuation cognition based error control mechanism on cognitive networks by De-guang LE, Yong JIN, Dong-hui GUO, Jin-yi CHANG

“…A cognitive error control mechanism for cognitive networks,called CEC was proposed.CEC was based on the cognition of importance of data frames’hops and types,which could select a best error control mechanism to improve the communication performance in cognitive networks.Besides,the energy efficiency model of cognitive networks was built.The mathematical analysis and simulation comparisons show that the proposed CEC mechanism achieves better performance in terms of communication reliability and energy efficiency in cognitive networks.…”
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Metasurface higher-order poincaré sphere polarization detection clock by Hui Yang, Kai Ou, Qiang Liu, Meiyu Peng, Zhenwei Xie, Yuting Jiang, Honghui Jia, Xinbin Cheng, Hui Jing, Yueqiang Hu, Huigao Duan

“…The comprehensive detection of SoP on the higher-order Poincaré sphere (HOPS), however, continues to be a huge challenge. …”
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Aquatic Toxicology Notes: Endothall by P. Chris Wilson, Jun Wu

“…It is also used as a defoliant and desiccant in some terrestrial situations (e.g., in potato, hops, cotton, clover, and alfalfa production). This 7-page fact sheet introduces users of endothall to the physical, chemical, environmental, and ecological properties of this herbicidal active ingredient relative to the aquatic environment. …”
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Aquatic Toxicology Notes: Endothall by P. Chris Wilson, Jun Wu

“…It is also used as a defoliant and desiccant in some terrestrial situations (e.g., in potato, hops, cotton, clover, and alfalfa production). This 7-page fact sheet introduces users of endothall to the physical, chemical, environmental, and ecological properties of this herbicidal active ingredient relative to the aquatic environment. …”
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Improved node localization algorithm for wireless sensor network by ZENG Fan-zi, SUN Zheng-zhang, LUO Juan, LI Ren-fa

“…In this algorithm, the smallest anchor box is constructed by the an- chor nodes within two hops in the network and the non-anchor nodes with minimum credit value and known coordinates, which leads to a shrank box where the sample and filter is more efficient to node location compared to the MCL and MCB. …”
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Hierarchical division-based cache storage strategy in content-centric networking by Jun LI, ming FENGZong, bo WUHai, Jiang ZHI

“…Experimental results indicate that the scheme has good performance in reducing access hops, increasing the average cache hit ratio and reducing the server load.…”
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Tunable Single-Longitudinal-Mode High-Power Fiber Laser by Jonas K. Valiunas, Gautam Das

“…An unpumped polarization-maintaining erbium-doped fiber was used inside the cavity to eliminate mode hopping and increase stability. A maximum output power of 300 mW was produced while maintaining single-longitudinal-mode operation.…”
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Charge Transport and Thermo-emf in TlFe1−xGaxS2 Solid Solutions by Solmaz Mustafaeva, Salim Asadov

“…The dependences of the thermoelectric properties and DC conductivity on temperature have been studied in TlFe1−xGaxS2 solid solutions. In terms of hopping mechanism of charge transfer, the parameters of localized states in the forbidden gap of TlFe1−xGaxS2 have been evaluated. …”
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Design of Satellite Internet Defense System Based on Mobile Target Defense by XU Ruirong

“…On this basis, a prototype system of satellite Internet based on mobile target defense was designed, which solved some key problems such as synchronization scheme, hopping data transmission, and verified the feasibility and effectiveness of the prototype system.…”
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