Search Results - "Niu, Jiqiang"

Study on the aerodynamic performance and noise of windshield area in high-speed trains at a frequency of 38 hz by Xiao, Xinbiao, Han, Jian, Peng, Laixian, Niu, Jiqiang, Zhang, Zongfa

“…The noise level of a high-speed train is a crucial indicator of its operational quality. A significant low-frequency interior noise, referred to as ‘38 Hz’ in…”
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Modeling of spatial pattern and influencing factors of cultivated land quality in Henan Province based on spatial big data by Wang, Hua, Zhu, Yuxin, Wang, Jinghao, Han, Hubiao, Niu, Jiqiang, Chen, Xueye

“…The quality of cultivated land determines the production capacity of cultivated land and the level of regional development, and also directly affects the food…”
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Computational Fluid Dynamics Analysis of Effect of Braking Plate Configurations on the Aerodynamic Behaviors of an Ahmed Car by Jiang, Fujian, Niu, Jiqiang, Li, Rui, Wang, Yueming, Zhang, Yingchao

“…Braking distance, particularly the emergency braking distance at high speed, is essential to ensuring safety. Aerodynamic drag and negative lift can be…”
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Numerical calculation of boundary layers and wake characteristics of high-speed trains with different lengths by Jia, Lirong, Zhou, Dan, Niu, Jiqiang

“…Trains with different numbers of cars running in the open air were simulated using the delayed detached-eddy simulation (DDES). The numbers of cars included in…”
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Effect of acceleration and deceleration of a capsule train running at transonic speed on the flow and heat transfer in the tube by Jiqiang, Niu, Yang, Sui, Qiujun, Yu, Xiaoling, Cao, Yanping, Yuan, Xiaofeng, Yang

“…Acceleration and deceleration are required for train operation, and the flow field around the train shows strong unsteady characteristics during the…”
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Numerical investigation of the aerodynamic characteristics of high-speed trains of different lengths under crosswind with or without windbreaks by Niu, Jiqiang, Zhou, Dan, Liang, Xifeng

“…The focus of this study was the influence of the length of a train on its aerodynamic performance, with and without wind break walls, under a crosswind. The…”
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Spatial heterogeneity characteristics and driving mechanism of land use change in Henan Province, China by Wang, Hua, Wan, Qiaonan, Huang, Wei, Niu, Jiqiang

“…We conducted a scientific quantitative analysis of the spatiotemporal evolution and driving factors of land use in Henan Province using a spatial zoning…”
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Comparison of different configurations of aerodynamic braking plate on the flow around a high-speed train by Niu, Jiqiang, Wang, Yueming, Wu, Dan, Liu, Feng

“…End of vehicle streamlined head was selected as the installation location, and aerodynamic behavior of trains with and without braking plates was compared to…”
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An Aerothermal Study of Influence of Blockage Ratio on a Supersonic Tube Train System by Sui, Yang, Niu, Jiqiang, Yuan, Yanping, Yu, Qiujun, Cao, Xiaoling, Wu, Dan, Yang, Xiaofeng

“…Evacuated tube transportation is an important development direction for the high-speed transportation technology of the future. However, a train running at…”
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Numerical simulation of the effect of air-intake on the indoor flow field of a dedusting equipment cabin used in tunnel construction by Niu, Jiqiang, Zheng, Qiyao, Lv, Dazhou, Wang, Yueming

“…There is a significant amount of dust during tunnel construction. As a comprehensive prevention method for tunnel dust, dust collector technology has been…”
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Incorporating spatio-temporal connectivity for prioritized conservation of individual habitat patches in a dynamic landscape by Zhao, Hongzhuo, Liu, Dianfeng, Li, Fuxiang, Liu, Xiaojing, Niu, Jiqiang, He, Jianhua, Liu, Yaolin

“…•Patch prioritization is achieved by incorporating spatio-temporal connectivity.•Extended betweenness centrality metric is promising for habitat priority…”
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Global Research on Artificial Intelligence from 1990–2014: Spatially-Explicit Bibliometric Analysis by Niu, Jiqiang, Tang, Wenwu, Xu, Feng, Zhou, Xiaoyan, Song, Yanan

“…In this article, we conducted the evaluation of artificial intelligence research from 1990–2014 by using bibliometric analysis. We introduced spatial analysis…”
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Numerical study on effect of crosswind on the cooling-fan flow and smoke diffusion of power pack suspended under the diesel train by Xu, Liangzhong, Chen, Chunjiang, Zhang, Qiyue, Niu, Jiqiang

“…Development of power packs suspended under the diesel train towards high power and high integration has been driven by the development of technology. The wind…”
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Spatiotemporal characteristic analysis of PM2.5 in central China and modeling of driving factors based on MGWR: a case study of Henan Province by Wang, Hua, Zhang, Mingcheng, Niu, Jiqiang, Zheng, Xiaoyun

“…Since the start of the twenty-first century, China's economy has grown at a high or moderate rate, and air pollution has become increasingly severe. The study…”
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Late Holocene human population change revealed by fecal stanol records and its response to environmental evolution at Xiada Co on the western Tibetan Plateau by Li, Xiumei, Liu, Sutao, Ji, Kejia, Hou, Xiaohuan, Yuan, Kan, Hou, Juzhi, Niu, Jiqiang, Yan, Junhui, Yan, Wei, Wang, Yifan, Wang, Yun

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Personalized tourist route recommendation model with a trajectory understanding via neural networks by Mou, Naixia, Jiang, Qi, Zhang, Lingxian, Niu, Jiqiang, Zheng, Yunhao, Wang, Yanci, Yang, Tengfei

“…Travel recommendations form a major part of tourism service. Traditional collaborative filtering and Markov model are not appropriate for expressing the…”
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Spatial and temporal characteristic of PM2.5 and influence factors in the Yellow River Basin by Han, Li, Han, Meng, Wang, Yiwen, Wang, Hua, Niu, Jiqiang

“…The Yellow River Basin has been instrumental in advancing ecological preservation and fostering national high-quality development. However, since the advent of…”
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Spatio-Temporal Variation Characteristics of Snow Depth and Snow Cover Days over the Tibetan Plateau by Zhang, Chi, Mou, Naixia, Niu, Jiqiang, Zhang, Lingxian, Liu, Feng

“…Changes in snow cover over the Tibetan Plateau (TP) have a significant impact on agriculture, hydrology, and ecological environment of surrounding areas. This…”
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Spatial Heterogeneity Analysis of the Multidimensional Characteristics of Urban Green Spaces in China—A Study Based on 285 Prefecture-Level Cities by Zhao, Wei, Liu, Dianfeng, Niu, Jiqiang, He, Jianhua, Xu, Feng

“…Quantitative measurement of urban green spaces (UGSs) plays a fundamental role in enhancing their ecological functions and services. Current studies have not…”
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Spatio-Temporal Evolution and Driving Mechanisms of Rural Residentials from the Perspective of the Human-Land Relationship: A Case Study from Luoyang, China by Wang, Hua, Zhu, Yuxin, Huang, Wei, Yin, Junru, Niu, Jiqiang

“…Rural residential area is the core component of rural land, and the process of its transfer exists to guide the change of rural land use. Its evolution is…”
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