Effect of Propane and NaCl-SDS Solution on Nucleation Process of Mine Gas Hydrate by Qiang Zhang, Qiang Wu, Hui Zhang

“…The induction time of mine gas hydrate formation was shortened with the reduction of NaCl concentration and the increase of SDS concentration. …”
Get full text

Research on Multistage Rotor Assembly Optimization Methods for Aeroengine Based on the Genetic Algorithm by Yue Chen, Jiwen Cui, Xun Sun, Shihai Cui

“…It often needs to be tested and disassembled repeatedly to meet the double-objective requirements at the same time. Therefore, an intelligent assembly method is urgently needed to directly predict the optimal assembly orientations of the rotors at each stage to meet the double-objective requirements simultaneously. …”
Get full text

PENINGKATAN KUALITAS PEMBELAJARAN IPA PADA MATERI SISTEM PENCERNAAN MANUSIA DENGAN STRATEGI JIGSAW-LESSON STUDY PADA SISWA KELAS VIII-A SMP NEGERI 3 PACITAN by Edi Winarno

“…In addition it also increases the percentage of mastery learning in the time before the actions of 38.89 % , after the first cycle of 72.22 % and the second cycle in the classical mastery learning students reach 100 % . …”
Get full text

Research of Vibration Characteristics of Gear-rotor-bearing System with Compound Faults by Haisheng Feng, Yongqiang Xiao, Baoguo Wu, Jin Dang, Jianping Wang, Fengtao Wang

“…When compound faults of the gear-rotor-bearing system occurs，the amplitude of system vibration on the time domain increase and the vibration are becoming more complicated. …”
Get full text

Analysis of Sugarcane Juice Quality Indexes by Zeqing Xiao, Xiaoping Liao, Shuaiyin Guo

“…During this time, the sugarcane is in the mature stage and hypermature stage. …”
Get full text

Retour sur les sociétés de montagne au Maghreb :fuqahā’ et soufis du Bilād Ghumāra (XIe-XVIIe siècles) à l’épreuve des réformes de la pratique religieuse by Mohamed Mezzine, Jacques/Jawhar Vignet-Zunz

“…These names bring us back to a time when the Ghmara country, as it was called at the time, was a cultural center that rivaled the city of Fez. …”
Get full text

Joint estimation of frequency and DOA with spatio-temporal under sampling by Xiang-dong HUANG, Hong-yu XIAN, Zi-yang YAN, Sen-xue JING

“…In order to estimate the frequency and DOA of an incident signal with sub-Nyquist spatio-temporal sampling,A novel joint estimation algorithm based on spectrum correction and Chinese remainder theorem(CRT)was proposed.Firstly,the incident signal was parallelly sampled at multiple sensors non-uniformly located in a sparse linear array.Then,AM spectrum corrector was employed to extract the rema of frequency and phase-difference from a small quantity of snapshots.Finally,implementing the close-form CRT on these remainders directly yields the estimates of frequency and DOA.In the proposed scheme,the spectrum corrector was shared by both the frequency estimator and the DOA es-timator,which contributed to a high utilization of the snapshots.Furthermore,compared to the existing CRT based esti-mators,the proposed estimator needs not to incorporate multiple times of temporal undersampling on a single sensor,which saves considerable time consumption and thus obtain high ability of tracking time-variant objects.Simulations verify the feasibility and the high-accuracy of the proposed joint estimator and further study shows that high reconstruc-tion probability can be realized even in low SNR cases,which present the vast potential for future development.…”
Get full text

Generating Encrypted Document Index Structure Using Tree Browser by Doaa N. Mhawi, Haider W. Oleiwi, Heba L. Al-Taie

“… The document indexing process aims to store documents in a manner that facilitates the process of retrieving specific documents efficiently in terms of accuracy and time complexity. Many information retrieval systems encounter security issues and execution time to retrieve relevant documents. …”
Get full text

Efficient resource allocation with context-awareness for parked car road side unit-based Internet of vehicles by Peng QIN, Haoting HE, Xiongwen ZHAO, Yang FU, Yu ZHANG, Miao WANG, Shuo WANG, Xue WU

“…In order to reduce the number of road side unit (RSU) and meet the needs of mobile vehicle users for processing latency-sensitive and computation-intensive tasks, a context-aware resource allocation algorithm was proposed based on parked cars.Road side parked vehicles were selected to serve the vehicle users instead of RSU using parking time as a factor for determining whether a parked vehicle could become a parked car roadside unit (PCRSU).In order to further reduce the system response time, a mechanism was designed considering content caching and distribution.In respect to user content caching, PCRSU made personalized content recommendation for vehicle users with awareness by using two elements of user historical search data and point of interest (PoI) area type.In respect to content distribution, PCRSU allocated bandwidth efficiently by sensing the data transmission needs of vehicle users.Extensive experiments show that compared with the existing benchmark methods, the proposed algorithm can select PCRSU more reasonably, effectively reduce the demand response delay, improve the stability of the network while ensuring network coverage, and provide more accurate service content for vehicle users.…”
Get full text

Resilience-Based Optimization of Postdisaster Restoration Strategy for Road Networks by Xinhua Mao, Jibiao Zhou, Changwei Yuan, Dan Liu

“…The effects of key parameters including the number of work crews, travelers’ sensitivity to travel time, availability of budget, and decision makers’ preference on the values of the two objectives are investigated as well.…”
Get full text

Moral Aspects of Some Combat Sports by Jacek Meller

“…Nowadays, sport is very popular as a way of spending free time, taking care of one’s health and physical condition, as well as being an entertainment worth watching; sport is also judged positively, when it comes to moral aspects. …”
Get full text

Deep features fusion for user authentication based on human activity by Yris Brice Wandji Piugie, Christophe Charrier, Joël Di Manno, Christophe Rosenberger

“…Time series does not receive any filtering operation with this transformation, and the method is reversible. …”
Get full text

Listing Practice in French Conversation: From Collaborative Achievement to Interactional Convergence by Roxane Bertrand, Beatrice Priego-Valverde

“…But in a second time, we will investigate to what extent this collaborative achievement can be considered a true interactional convergent construction. …”
Get full text

Using of turquoise organization’s concept to benchmark indicators of creative team management by A. R. Akopyan, Yu. V. Vorontsova

“…To implement the task of standardization, a universal model of quantitative assessment of qualitative indicators was developed, taking into account the dynamics of their changes. At the same time, a model was built for selecting indicators for the formation of a set of personnel characteristics in order to benchmark them relative to the level of the same characteristics of the turquoise organization, taking into account the possibility of their transversal change over time.…”
Get full text

Extraction of Fetal Electrocardiogram by Combining Deep Learning and SVD-ICA-NMF Methods by Said Ziani, Yousef Farhaoui, Mohammed Moutaib

“…The findings demonstrate the efficiency of this innovative approach, which may be deployed in real-time.…”
Get full text

Characterization of Chemically Treated Sisal Fiber/Polyester Composites by Adane Adugna Ayalew, Awoke Fenta Wodag

“…The fibers were treated by using 2%, 6%, and 10% NaOH concentrations within 24, 48, and 72 h soaking time. Composite was made from different sisal to polyester ratios of 20 : 80, 30 : 70, and 40 : 60 (w/w). …”
Get full text

The Oscillating Component of the Internal Jugular Vein Flow: The Overlooked Element of Cerebral Circulation by Francesco Sisini, Eleuterio Toro, Mauro Gambaccini, Paolo Zamboni

“…If this is true, then it will imply the following: (i) the blood velocity in the IJV is a periodic function of the time with period equal to the cardiac period and (ii) the instantaneous blood velocity is given by a time function that can be derived from a flow-dynamics theory that uses the instantaneous pressure gradient as a parameter. …”
Get full text

Enhancing performance, self-efficacy and well-being: A randomised controlled study in solution-focused business coaching by Réka Gerhát, Dorottya Ocsenás, Ákos Münnich

“…The study highlights SFBC as a powerful, time-efficient intervention for organisations, offering a practical approach to sustaining employee performance and well-being over time.…”
Get full text

Determining First Aid Knowledge and Skills Retention with Laypeople: A Randomized Controlled Trial in Nepal

“…Results: FA theoretical knowledge and practical skills decreased significantly over time. Attending an active refresher course after one year was associated with a lesser decay in non-resuscitative FA knowledge (p=0.04), while no effect could be shown on the retention of practical skills for bleeding (p=0.52). …”
Get full text

Forecasting Eruptions at Poorly Known Volcanoes Using Analogs and Multivariate Renewal Processes by Ting Wang, Mark Bebbington, Shane Cronin, Joel Carman

“…We created a statistical tool to identify and test the compatibility of potential analogue volcanoes based on repose‐time characteristics from world‐wide datasets. Selecting analogue volcanoes with compatible behavior for factors being forecast, such as repose time, significantly reduces forecasting uncertainties. …”
Get full text