A Novel Node Importance Evaluation Method Based on Agglomeration Contraction Principle for Wireless Sensor Networks by Kui Liu, Chunfeng Wang, Sanyang Liu

“…Final experiments verify the efficiency of the proposed method and the result is consistent with our intuitive judgments.…”
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Numerical Investigation of Gas Mixture Length of Nitrogen Replacement in Large-Diameter Natural Gas Pipeline without Isolator by Hongjun Zhu, Qinghua Han

“…The used method of fitting formula is shown in the paper by examples. The results provide effective guidance for practical operation of nitrogen replacement.…”
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Analyzes of the effects and security function social capital in sustainable rural border areas the villages of the central city of Saravan by Javad Bazrafshan, Mehrshad Toulabi Nejad

“…Results the research findings on the impact of social capital in rural sustainable security shows that the greatest impact is related to social security. …”
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Simulation and Analysis of Oil Churning Power Loss in Electric Drive Planetary Gears Based on the CFD Method by Tang Pei, Wang Le, Ren Shaoying, Li Shanshan

“…The existing calculation method of churning loss mainly adopts simple empirical formula, which cannot be applied to complex planetary gear transmission. …”
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Determinants of Generation Z Green Investment Interest: The Role of Social Media Platforms as Moderating Variables by Priyanti Dewi Nilasari, Fitriyah Fitriyah

“…The study used quantitative methods with Cochran's Formula technique to identify a subset of 100 respondents from Within the study from four state universities in Malang City. …”
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RESEARCH CONCAVE CIRCULAR HOLE TEMPLATE LINEAR VARIABLE THICKNESS STIFFNESS AND STRENGTH THEORIES by LI ShaoJie

“…This paper studies linear variable thickness circular aperture concave template theory of stiffness and strength calculation.First,set up mechanical model:Template for circular concave,outside the perimeter fixed; center has a round hole,inside the perimeter free,outside under uniformly distributed vertical load.Secondly,the establishment of mathematical model:Derivation of concave template in the axisymmetric condition,ordinary differential equation with variable coefficients of elastic curved surface,and gives the mathematical expressions of boundary conditions.Again,in view of the differential equation boundary value problem,the displacement method and the Matlab algorithm,it is concluded that the deflection of concave template function,and establish the stiffness calculation condition of concave template.Then,determine the concave template on the bending moment and the maximum bending moment and stress,so as to establish a concave template strength calculation conditions.Finally,numerical examples.This paper presents the function solutions,to change law of control concave template section variable parameters.In this way,not only highlight the interdependent relationship between the quantity of each,and optimization,and discussion and application.The result is suitable for uniform,continuous,isotropic material artifacts.Because in the process of calculation and data processing with error,so the formula is similar.…”
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Multiple Reflective Cracks in Semirigid Base Asphalt Pavement under Traffic Load Using XFEM by Lei Guo, Jinchao Yue, Pan Guo, Xiaofeng Wang

“…The fracture life of the asphalt pavement structure was calculated based on the Pairs formula. The results demonstrate that reflective cracks in semirigid asphalt pavement are composite cracks of type I and type II under moving vehicle loads, and shear fracture is the main reason for the failure of the base. …”
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Upaya menigkatkan kompetensi guru dalam menyusun rencana pelaksanaan pembelajaran melalui pemberdayaan kegiatan kelompok kerja by Aliasmi Aliasmi

“…The data analysis technique was analyzed descriptively using the percentage formula. Based on the results of the study it was found that: 1) To improve competence in the learning process carried out through empowering competency activities in the learning process carried out through empowering teacher working group activities on a regular basis as much as 2 cycles, each cycle of 2 meetings, each meeting to make four stages of the planning activities, the implementation of actions, observations and reflections. 2) Observation is carried out by the principal as a collaborator supervisor, ending with reflection to see the positive and negative aspects as a basis for planning the next action in cycle 2. …”
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Multivariate Stochastic Simulation of Wind-solar-hydro Resources Considering Spatio-temporal Correlations by CHENG Qiuyu, HUANG Qiang, MING Bo, CHEN Jing, LI Yan

“…Complementary operation of wind-solar-hydro resources is an effective mean to promote the consumption of new energy and improve resource use efficiency.Synchronous simulation of wind-solar-hydro resources can provide reliable data for the planning,design,management and risk assessment of the complementary system.Taking ten million-kilowatt-class wind-solar-hydro complementary system upstream Yellow River as an example,after proposing a multivariate stochastic simulation method with consideration of spatio-temporal correlations between wind-solar-hydro resources,this paper firstly analyzes the spatio-temporal correlations of wind-solar-hydro resources,with runoff as the main variable,and wind power and photovoltaic power output as the slave variable for the stochastic simulation;secondly,simulates the runoff in different time series by a seasonal autoregressive model;finally,simulates the photovoltaic power output by the Copula function and conditional probability formula according to the correlation analysis between runoff and wind and photovoltaic power output,as well as the wind power output by a seasonal autoregressive model.The results show that the proposed method can accurately simulate the multivariable time series that can satisfy the historical statistical regularity.…”
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ETHNO-RELIGIOUS CONFLICT: A THREAT TO BENEVOLENT INTERGROUP RELATIONS IN WUKARI METROPOLIS, TARABA STATE, NIGERIA by Rosemary Onchi Daniel, Ajiyitu Bako

“…A simple random sampling technique was used to select wards, and the Tare Yamane formula determined the sample size. Data was collected through questionnaires from 391 respondents using quantitative methods. …”
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A novel machine learning model for perimeter intrusion detection using intrusion image dataset. by Shahneela Pitafi, Toni Anwar, I Dewa Made Widia, Zubair Sharif, Boonsit Yimwadsana

“…In the enhanced DBSCAN, distances between minimal points are determined using an estimation for the epsilon values with the Manhattan distance formula. The effectiveness of the proposed model is evaluated by comparing it to state-of-the-art techniques found in the literature. …”
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Optimal transmission strategy of diamond channel with limited battery capacity of source node by Taoshen LI, Li SUN, Zhe WANG

“…In order to solve the problem that the energy harvesting uncertainty of node in wireless energy harvesting network makes it difficult for the system to design a reasonable transmission strategy, a diamond channel with limited battery capacity of the source node were constructed.The goal was to maximize the end-to-end throughput of the system.Under the conditions of meeting the constraints of energy and data causality between transmission nodes and no battery energy overflow, a model to maximize the end-to-end throughput of the system was built, and an optimal offline transmission power and rate allocation strategy was proposed.Firstly, based on theoretical analysis and formula derivation, the strategy transformed the optimal transmission problem into the optimal transmission problem on the side of the broadcast channel, and used the water-filling algorithm to solve the optimal total power from the source node to the relay node.Then, the throughput of the source node to each relay node was analyzed based on the cutoff power level in the broadcast channel throughput maximization problem.Finally, according to the data arrival of the relay node, the iterative water-filling method was used to solve the optimal transmission power from the relay node to the destination node, and the optimal rate was solved by extending the optimal rate of the multiple access channel.Simulation results demonstrate the feasibility and correctness of the proposed optimization policies.…”
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Joint Operation of Reservoir Group in Longxi River Basin Considering Agricultural Water Demand by CHEN Si, XU Wei, ZHAO Siqi, YIN Shiming, YANG Yi

“…Water resources in small- and medium-sized basins are often not reasonably allocated,and the utilization rate of water resources is not high.In this paper,five reservoirs in the Longxi River Basin are taken as an example.Firstly,the hydrological model is constructed,and the parameters of the model are calibrated and verified by the 12-year measured runoff of Liujiantan Hydrological Station.The NSE can reach 0.89,the R² is 0.87,and the relative error (RE) is 5.4 %.The inflow process to the reservoir interval is obtained.Secondly,three representative crops of corn,rice,and sweet potato in the basin are selected to construct the reservoir irrigation water demand model.The crop coefficient method and Penman-Monteith formula are adopted to calculate the crop water demand and the USDA-SCS method was used to calculate the effective precipitation.Finally,the joint and single reservoir operation models of the Longxihe reservoir group to maximize the comprehensive water supply and power generation are built,and the POA solution and fuzzy analytic hierarchy process are utilized to optimize the scheme.The results show that the joint operation is more capable to balance the distribution of water resources between upstream and downstream reservoirs,improve the power generation efficiency and water supply guarantee rate,and reduce the amount of abandoned water than the single reservoir operation.…”
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CONTACT AND ROTATION ANALYSIS OF SINGLE ROLLER ENVELOPING FACE WORM DRIVE by LIAO HongHui, LIU ZaiXin, LI LingYu, WANG XuDong

“…Meanwhile,the calculation formulas of contact wire wrap angle and contact wire density are derived and analyzed numerically. …”
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ENTITIES PERFORMING SELF-GOVERNMENT PUBLIC TASKS - SPECIFICITY OF ACTING AND FUNDING by Anna Milewska

“…It should also be noted that the private capital involvement formula (PPP contracts) can be used when there are economic benefits in the implementation of a specific public project, the scale of which may be of interest to the owners of capital. …”
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Computer Simulation of Water Flow Animation Based on Two-Dimensional Navier-Stokes Equations by Rushi Cao, Ruyun Cao

“…The coordinate transformation formula is introduced to transform the irregular physical area into a regular square calculation area, and then, the specific expressions of the liberalized Navier-Stokes equation, continuity equation, pressure Poisson equation, and dimensionless boundary conditions are given. …”
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Investigation of the Synthesis and Properties of Ternary V–Cu–Ce Oxides of Composition VCuCeO by Christothea Attipa, Charis R. Theocharis

“…A co-precipitation method has been used to prepare ternary mixed oxides based on ceria with the general formula V x Cu x Ce 1 – 2x O 2 , where x was varied between 0.05 and 0.45. …”
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Investigation of the degree of social capital in Urban renewal of old textures in Zanjan old texture by Jalil Mohammadi, Alireza Mohammadi

“…Using multi-stage random sampling was used and 330 samples were selected using Cochran formula. The results showed that the Zanjan old texture residents have the social capital above average; nearly it was true in all of its components. …”
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Prediction and policy: Do empirical gross calorific value prediction help reduce coal testing overload? by Saroj K Sadangi, Rudra P Pradhan

“…The introduction of independent third-party assessment of coal quality by Coal India Limited in 2016 has generated a vast dataset of coal sample-test results, offering an opportunity to reassess existing empirical formulae, test their alignment with existing policies, and explore possibility of a unified, region-neutral formula for rapid GCV prediction with a special focus on alleviating the current overload in coal testing.…”
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Portfolio ownership in the excess return model at Indonesian stock exchange by Luqman Hakim, Sri Retnaning Sampurnaningsih, Siti Nuraidawati, Aang Aribawa

“…First results; an increase in FK can explain the impact on an increase in FO, these results confirm the prevailing theory. …”
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