Protecting Children 'from Sex and Violence in the Media: by Marioll Hayes Hull Marioll Hayes Hull

“…Instead, they are moving toward combining government influence with free-market forces. …”
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Analysis of UAV wireless network coverage and handover performance by Bonan YIN, Mugen PENG, Chenxi LIU

“…For the characteristics of unmanned aerial vehicle (UAV),such as high mobility,adjustable height,and high probability of line-of-sight channels,which introduced multiple challenges to the design and deployment of current and future wireless network,and the networking performance of UAV was the focus and difficult issues in the industry,the network coverage and handoff performance of heterogeneous UAV wireless network was analyzed,which provided insights into UAV wireless networking.Specifically,considering the outdated channel state information introduced by the UAV’s mobility,analytical expressions of handover probability,handover error probability,and coverage probability for heterogeneous UAV wireless network were derived by utilizing the tools from stochastic geometry.In addition,the impacts of the UAV’s mobility,height,as well as the density of terrestrial base stations on the aforementioned performance metrics were investigated.It shows that the outdated channel state information caused handover error,which increases first and then decreases with the increase of UAV’s moving speed and density of base stations.Meanwhile,the impact of UAV’s flight height on coverage probability is more significant than that of moving speed.…”
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Tracking Couples who leave the Study Location in Historical Studies of Fertility: an Australian Example by Helen Moyle

“…However, because of the high mobility in Australia in the 19th and early 20th centuries, couples who moved out of the colony were tracked to other places, and births and deaths that took place in other Australian colonies and other countries, such as New Zealand and England, were included in the database. …”
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Analysis of Temporal and Spatial Characteristics of Precipitation Series in Weihe River Basin Based on Sample Entropy by MU Jiaxin, SUN Dongyong, RU Ya'nan, WANG Miaomiao, LI Xianwei, LI Ya'nan

“…In a changing environment,the temporal and spatial complexity of precipitation in the Weihe River Basin changes.In this paper,the measured daily precipitation data of 21 meteorological stations in the Weihe River Basin in 59 years from 1960 to 2018 are selected.The static and dynamic evolution characteristics of the complexity of precipitation series in the Weihe River Basin are studied by the moving sample entropy (M-SampEn).The mutation test is carried out by the combination of the moving cut sample entropy (MC-SampEn) and Bayesian analysis.The results show that the complexity of precipitation series in the Weihe River Basin has spatial differences,and the precipitation complexity and intergenerational variation trend in each sub-region are relatively consistent.The precipitation of the upper and middle reaches of Weihe River and Jinghe River Basin mutated in 1995,and that of the lower reaches of Weihe River mutated in 1991 while that of the Beiluo River Basin mutated in 1970 and 2000.…”
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Vertical handoff research based on cognitive self-selection decision tree by Cun-qun FAN, Shang-guang WANG, Qi-bo SUN, Hua ZOU, Fang-chun YANG

“…In heterogeneous wireless network environments, users need to access to the internet anytime, anywhere, even in a high-speed moving process. However, in the vertical handoff process, the preferences of different user and the unsta-ble network status after handoff cannot meet the switching requirement of users. …”
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Orientational Capability Analysis of a 2UPR-SPR Parallel Manipulator by Che Linxian, Zhang Rong, Zhang Caifang, Wang Taofen

“…The tilt-and-torsion angle with zero-torsion is used to descript the orientation of moving platform, and the mathematical model is constructed to solve the inverse displacement of the mechanism. …”
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Mechanism Design and Simulation Analysis of Obstacle Surmounting Multi-leg Robot by Jun Liu, Chengmin Wang, Feng Wang

“…A kind of obstacle surmounting multi-leg robot is designed，the robot has the characteristics of fast moving speed and strong obstacle surmounting. Leg mechanism design is one of the important factors that affect the motion characteristics of multi-leg robot. …”
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Design and Analysis of Parallel Adjusting Equipment of Vertical Drilling by Zhou Bin, Zeng Yishan, Zi Bin

“…Focusing on the current limited vertical adjustment technique of large-scale drillings,a 6-DOF parallel adjustment equipment with 12 inputs is designed for the working condition of vertical drilling.The equipment mechanism consists of 6branched chains with redundancy which are symmetrical in structure.Each of the chains is composed by a compound of rotate joint and a compound of spherical joint,while the two pairs are connected by two prismatic pairs.The modal analysis is carried out on the body which is based on ANSYS software,first six order frequency distribution and modal vibration mode,and along the X、Y、Zdirection of the displacement frequency response about the moving platform are got.The analysis consequence shows that the most sensitive of external forces to the moving platform is 46 Hz frequency.Otherwise,the working space of the 6-DOF platform is obtained by using the 3-D searching algorithm.The results have significant meanings in the further research on the correlation between the parameters and the whole mechanism,as well as the optimization of the parameter.…”
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DESIGN AND VIBRATION REDUCTION OPTIMIZATION OF THE ANTI-COLLISION MECHANISM by FU Min, WANG Kai, SU HaiLong

“…The maximum force appears when the marking gun is moving in the accelerative stage in X and Y orientations. …”
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Structural innovation design of mobile chassis for inspection robots based on the TRIZ theory by WANG Zhihui, LI Kangkang, WANG Chengjun

“…The comparative simulation of the original structure chassis and improved mobile chassis moving under complex road conditions was conducted in Admas simulation software. …”
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Dynamics Analysis and Simulation of a Novel Fully-isotropic Translational Parallel Robot by Zhang Yanbin, Wang Zenghui, He Qiang, Zhao Yifu, Ding Ding

“…A novel fully-isotropic translational parallel robot is presented,which consists of a moving platform connecting with a fixed base by three identical limbs. …”
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An Improved Recursive ARIMA Method with Recurrent Process for Remaining Useful Life Estimation of Bearings by Zeyu Luo, Xian-Bo Wang, Zhi-Xin Yang

“…To overcome the limitation, this paper proposes an improved autoregressive integrated moving average with the recurrent process (ARIMA-R) method. …”
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Dynamic Load Distribution of a Radially Loaded Rolling Bearing by Ya Luo, Keke Ge, Yibin Huang, Wenbing Tu

“…The dynamic effects of the moving parts of the rolling bearing have significant influence on the load distribution. …”
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Dynamics Simulation Analysis and Experimental Research of Gear Broken Tooth Failure Mechanism of Diesel by Jiang Zhinong, Jiang Bing, Zhang Chuangang, Xing Chenghong, Zhang Jinjie

“…The phenomenon is identical with the actual failure case. When camshaft axial moving and intermediate gear radial vibration,each order frequency will increase significantly,especially the fundamental frequency,three frequency multiplication,and four frequency multiplication. …”
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Design and Kinematics Analysis of the Double Slider Tipping Bucket Mechanism by Zhu Jiacheng, Wei Zexu, Fang Mingjin, Meng Fanxi

“…The change rule of sliding block chain speed is obtained from the theory when the tipping bucket is used as the original moving part,and the kinematics parameters are provided for the intelligent control of the mechanism.…”
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Gait and Stability Analysis of 3-PUU Wheel-legged Mobile Robot by Miao Zhiying, Li Ruiqin, Zhang Qisheng, Liang Jingjing, Meng Hongwei, Liang Shijie

“…The wheel-legged robot has the advantages of fast moving velocity of wheeled robot and strong passing obstacle capability of legged robot,and it is the development direction of new type mobile robot. …”
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A Comparison of Bullwhip Effect under Various Forecasting Techniques in Supply Chains with Two Retailers by Junhai Ma, Xiaogang Ma

“…A first order mixed autoregressive-moving average model (ARMA(1, 1)) performs the demand forecast and an order-up-to inventory policy characterizes the inventory decision. …”
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Related Rules Study of Gear Web Structure and Gear Tooth Root Crack Propagation based on Extended Finite Element Method by Xu Detao, Tang Jinyuan, Zhou Wei, Xu Yongli

“…The decrease of web thickness results in gear tooth crack propagation paths moving down to gear center integrally,which increases the occurrence of rim fracture. …”
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Tracking Couples who leave the Study Location in Historical Studies of Fertility: an Australian Example by Helen Moyle

“…However, because of the high mobility in Australia in the 19th and early 20th centuries, couples who moved out of the colony were tracked to other places, and births and deaths that took place in other Australian colonies and other countries, such as New Zealand and England, were included in the database. …”
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Analysis of the Torque Transmission Performance of Double 3-RRS Over-redundant Actuation Flight Simulator by Zhou Changchun, Wang Qi

“…Because of only one fixed coordinate frame is established,it has one fixed base in general and one moving platform. The whole moving platform is served as the flight simulator capsule. …”
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