Thirty-Year Periodicity of Cosmic Rays by Jorge Pérez-Peraza, Víctor Velasco, Igor Ya. Libin, K. F. Yudakhin

“…On the basis of periodicities of the 10Be time series (using data from both the South and North Poles) and the 14C time series (with data from Intercal-98), we offer evidence of the existence of cosmic ray fluctuations with a periodicity of around 30 years. …”
Get full text

Topology control of satellite networks for multi-layer and multi-domain mega-constellation by XU Xiaofan, ZHANG Yueyue, CAO Xinyue, MIAO Xin, YAN Feng, DU Ping

“…The results show that the proposed topology description model can improve the real-time and accuracy of the topology control process for mega-constellation satellite networks.…”
Get full text

Synthesis and Characterization of Hydrogel-Based Hyaluronic Acid-Chitosan-Allium sativum Extract for Intraperitoneal Antiadhesion Application by Prihartini Widiyanti, Yolanda Citra Ayu Priskawati

“…Several barriers are made to prevent adhesions, including liquid barriers such as sodium hyaluronate and carboxymethyl cellulose (CMC) but are fast absorbed-time hydrogel. The solid barrier has weakness of difficulty in covering all parts of the wound surface. …”
Get full text

VIBRATION MEASUREMENT METHOD OF WIND TURBINE BLADE BASED ON BINOCULAR PHOTOGRAM METRY by YAKUP AhMat, WANG WenYun, GULBAHAR TohTi, SUN Zhi, MAMTIMIN GeNi

“…The vibration images sequence of the blade was acquired synchronously by two cameras and the target was segmented by adaptive binary dynamic threshold method,the direction with fastest grayscale gradient of the coding point as the edge,the circle curve was fitted by the least squares and iterative method,and the precise suppixel central coordinates of the coding point in the dynamic consecutive images were obtained by the gray square centroid method.Each coding point is similar to a small "displacement transducer"that reflects the blade’s time domain vibration response.Finally,the blade’s natural modal frequency was obtained from the time domains response,and compared with the results of the finite element and Laser Doppler Vibrometry,the relative error of vibration frequencies less than 5%,which verified the reliability and effectiveness of binocular photogrammetry method.…”
Get full text

Cruising for Parking with Autonomous and Conventional Vehicles by Mehdi Nourinejad, Matthew J. Roorda

“…We show that (i) CVs park closer to the downtown zone in order to minimize their walking distance, whereas AVs park farther away from the downtown zone to minimize their parking search time, (ii) AVs experience a lower search time than CVs, and (iii) higher AV penetration rates reduce travel costs for both AVs and CVs.…”
Get full text

Redactable blockchain supporting trapdoor revocation and limited number of redactions by Yue CHEN, Zenghang HAO, Jianghong WEI, Xuexian HU, Dongmei YANG

“…Aiming at the problem that although the existing redactable blockchain schemes that support trapdoor revocation could revoke the redaction permissions of trapdoor holders, but they were unable to limit the number of redactions using trapdoors, indicating an issue where the management of editing permissions was not adequately refined, a revocable chameleon hash with limited number of redactions was proposed, based on which a new redactable blockchain scheme was proposed.Specifically, the proposed scheme included a master trapdoor, a subordinate trapdoor, and the generated witness.The subordinate trapdoor was deployed for data modification, while the master trapdoor was employed to revoke the subordinate trapdoor, thus accomplishing the objective of revoking editing permissions.Meanwhile, the witness was developed to strictly limit the number of edits via the subordinate trapdoor to one time.The proposed scheme is proved to be secure under the standard complexity assumptions.Theoretical analysis and simulation experiments indicate that the proposed scheme has advantages in terms of security guarantee, when compared with the existing schemes supporting trapdoor revocation.At the same time it introduces little additional computation overhead, and thus has certain practicality.…”
Get full text

Optimal Corridor Selection for a Road Space Management Strategy: Methodology and Tool by Sushant Sharma

“…The programming compares two conflicting objectives of system travel time and safety benefits to find an optimal solution.…”
Get full text

The Relationship Between Online Socialization and Online Social Identity by Işıl Avşar Arık, Birsen Şahin Kütük

“…Therefore, this study examined the effects of internet addiction (IA) and the average time spent on social media (ATSM) (as online socialization) on OSI, and the mediate effect of the time spent on the internet when young people are together with their family members (TSIWTF). …”
Get full text

Burnout among nurses practicing in critical care units: Predicting the contributing factors by Sahar Yaqoob Yousif, Sadeq AL-Fayyadh

“…Conclusion: Anxiety, stress, alarm fatigue, depression, and time span are the most influential factors in the development of burnout. …”
Get full text

Reconstruction of sparse check matrix for LDPC at high bit error rate by Zhaojun WU, Limin ZHANG, Zhaogen ZHONG, Renxin LIU

“…In order to reconstruct the sparse check matrix of LDPC, a new algorithm which could directly reconstruct the LDPC was proposed.Firstly, according to the principle of the traditional reconstruction algorithm, the defects of the traditional algorithm and the reasons for the defects were analyzed in detail.Secondly, based on the characteristics of sparse matrix, some bit sequences in code words were randomly extracted for Gaussian elimination.At the same time, in order to reliably realize that the extracted bits sequence could contain parity check nodes, the multiple random variables were determined based on the probability of containing check nodes in one extraction.Finally, the statistical characteristics of LDPC under the suspected check vector was analyzed.Based on the minimum error decision rule, the sparse check vector was determined.The simulation results show that the rate of reconstruction of most LDPC in IEEE 802.11 protocol can reach more than 95% at BER of 0.001, and the noise robustness of the proposed method is better than that of the traditional algorithm.At the same time, the new algorithm not only does not need sparseness of parity check matrix, but also has the good performance for both diagonal and non-diagonal check matrix.…”
Get full text

Peer effects among friends on students' cognitive abilities: An analysis based on emotional distance. by Wenyi Zhou, Junming Xie, Jinsong Kuang, Yongqing Feng, Dag Øivind Madsen

“…In other words, to align with their friends, students increase their study time, raise their educational aspirations, and minimize instances of skipping classes and absenteeism. …”
Get full text

Research on Energy Efficiency Management of Forklift Based on Improved YOLOv5 Algorithm by Zhenyu Li, Ke Lu, Yanhui Zhang, Zongwei Li, Jia-Bao Liu

“…Based on machine vision, the paper proposes a method to count the amount of goods loaded and unloaded within the working time limit to analyze the efficiency of the forklift. …”
Get full text

On Nonlinear Simulation Methods and Tools for Evaluating the Performance of Ships and Offshore Structures in Waves by Shukui Liu, Apostolos Papanikolaou

“…This paper describes the development of alternative time domain numerical simulation methods for predicting large amplitude motions of ships and floating structures in response to incoming waves in the frame of potential theory. …”
Get full text

Research on the Meteorological Prediction Algorithm Based on the CNSS and Particle Swarm Optimization by Li Yang, Meng Zhang, Yunhan Zhang

“…Considering that the global navigation satellite system (GNSS) has the influence of positioning and atmospheric signals from time to time in meteorology, errors caused by moisture, and so on in the effect of the propagation path, these factors have led to the influence of various indexes of meteorological factors. …”
Get full text

Le méthaniseur et le paysage by Fabrice Raffin, Camille Dormoy

“…A definition of the landscape that therefore involves at the same time the actor-network theories and the sociological interactionist approach (Le Breton, 2012). …”
Get full text

Joint Position and Velocity Estimation of a Moving Target in Multistatic Radar by Bistatic Range, TDOA, and Doppler Shifts by Lijuan Yang, Huotao Gao, Boya Li, Yunkun Yang, Guobao Ru

“…Estimation accuracy is improved by using bistatic range (BR), time-difference-of-arrival (TDOA), and Doppler shifts. …”
Get full text

Flow Boiling Heat Transfer Enhancement by Using ZnO-Water Nanofluids by Om Shankar Prajapati, Nirupam Rohatgi

“…Thermal conductivity of the ZnO-water fluids was investigated for different sonication time using thermal property analyzer (KD2 Pro). Thermal conductivity of nanofluids for a given concentration of nanoparticle varies with sonication time. …”
Get full text

Le couple anticipation/décision aux prises avec l’exceptionnel, l’imprévu et l’incertitude by Valérie November, Alice Azémar, Sophie Lecacheux, Thierry Winter

“…It appears that the lack of a shared vision within and between the crisis units on the nature, time horizon and methodological framework of the anticipation function were as many obstacles to its effective implementation during the cyclone sequence. …”
Get full text

An Efficient Algorithm of Constructing Virtual Backbone Scheduling for Maximizing the Lifetime of Dual-Radio Wireless Sensor Networks by Bing-Hong Liu, Van-Trung Pham, Ngoc-Tu Nguyen

“…Because the sensors are expected to work on batteries for a long time without charging their batteries, the major challenge in the design of wireless sensor networks is to enhance the network lifetime. …”
Get full text

Stability and Hopf Bifurcation of a Delayed Epidemic Model of Computer Virus with Impact of Antivirus Software by Zizhen Zhang, Ranjit Kumar Upadhyay, Dianjie Bi, Ruibin Wei

“…In this paper, we investigate an SLBRS computer virus model with time delay and impact of antivirus software. The proposed model considers the entering rates of all computers since every computer can enter or leave the Internet easily. …”
Get full text