Showing 41 - 60 results of 123 for search '"northwest China"', query time: 0.07s Refine Results
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    Impact of the COVID-19 pandemic on epidemiological and clinical characteristics of inpatients with burns in a Northwest China burn centre: a retrospective study by Jiaqi Liu, Jian Feng, Yuheng Zhang, Yiwei Cui, Shuao Xiao, Yige Han, Yongqian Bian, Xueyong Li

    Published 2025-01-01
    “…Objective This study aimed to assess the impact of the COVID-19 pandemic on the characteristics and outcomes of patients with burns in a burn centre situated in Northwest China.Design A retrospective descriptive study.Setting This study was conducted in Tangdu Hospital, a major regional burn centre in Xi'an, Shaanxi Province of China.Participants A total of 1413 patients with burns were included in the study, with the admission period spanning from 2017 to 2019 (before the pandemic) and 2020 to 2022 (during the pandemic).Results Burn hospitalisations decreased during the pandemic for both children (9.80%) and adults (24.68%). …”
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  3. 43

    Can a tiered water price policy improve the technical efficiency of crop irrigation for maize in the Heihe River Basin in Northwest China? by Guifang Li, Dongdong Ma

    Published 2025-03-01
    “…On the basis of farmer survey data in 2014 and 2019, this study takes typical irrigation districts in the Heihe River Basin (HRB) in Northwest China as the study area and measures the net effect of a tiered water price policy (TWPP) on the technical efficiency of crop irrigation (TECI) by constructing sub-vector data envelopment analysis (DEA) and difference-in-differences (DID) models. …”
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    Variations in Stable Carbon Isotope Composition and Leaf Traits of Picea schrenkiana var. tianschanica along an Altitude Gradient in Tianshan Mountains, Northwest China by Huiwen Zhang, Jianying Ma, Wei Sun, Fahu Chen

    Published 2014-01-01
    “…To understand the morphological and physiological responses of leaves to changes in altitudinal gradients, we examined ten morphological and physiological characteristics in one-year-old needles of Picea schrenkiana var. tianschanica at ten points along an altitudinal gradient from 1420 to 2300 m a.s.l. on the northern slopes of the Tianshan Mountains in northwest China. Our results indicated that LA, SD, LPC, and LKC increased linearly with increasing elevation, whereas leaf δ13C, LNC, Chla + b, LDMC, LMA, and Narea varied nonlinearly with changes in altitude. …”
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  6. 46

    Chemical Fingerprints and Source Profiles of PM10 and PM2.5 from Agricultural Soil in a Typical Polluted Region of Northwest China by Yaochuang Yu, Junji Cao

    Published 2023-03-01
    “…This study quantitatively analysed twenty-four elements, eight water-soluble ions, organic carbon (OC) and elemental carbon (EC) in PM10 and PM2.5 samples from agricultural resuspended SD to understand the chemical profiles of agricultural SD in Baoji city, Northwest China. The results showed that the elemental compositions in the PM10 and PM2.5 size fractions contributed 40.18% and 39.6%, respectively, followed by water-soluble ions (3.85% in PM10 and 6.62% in PM2.5) and carbonaceous fractions (3.46% in PM10 and 2.36% in PM2.5). …”
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    Determination of Mining-Induced Changes in Hydrogeological Parameters of Overburden Aquifer in a Coalfield, Northwest China: Approaches Using the Water Level Response to Earth Tides by Qingyu Xu, Guangcai Wang, Xiangyang Liang, Shen Qu, Zheming Shi, Xianbin Wang

    Published 2021-01-01
    “…In this study, the tidal responses of well water level were employed to characterize the changes in hydrogeological parameters of the overburden aquifer induced by longwall mining in a coalfield, northwest China. Based on the long-term hourly recorded water level data, two analytical models were used to determine the temporal changes of permeability and specific storage of the overburden aquifer. …”
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    Genesis Analysis of High-Gamma Ray Sandstone Reservoir and Its Log Evaluation Techniques: A Case Study from the Junggar Basin, Northwest China by Liang Wang, Zhiqiang Mao, Zhongchun Sun, Xingping Luo, Yong Song, Zhen Liu

    Published 2013-01-01
    “…In the Junggar basin, northwest China, many high gamma-ray (GR) sandstone reservoirs are found and routinely interpreted as mudstone non-reservoirs, with negative implications for the exploration and exploitation of oil and gas. …”
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    The impact of social capital spatial structure and village collective action participation on farmland conservation behavior among farmers: evidence from three provinces of Northwest China by Xinjie Li, Qian Lu

    Published 2025-12-01
    “…This research employs micro-survey data from farmers across three provinces in Northwest China and utilizes an endogenous switching probit model to explore the effects of social capital’s spatial structure and village collective action participation on farmland conservation practices. …”
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    Multi-component Runoff Simulation in Arid Area Based on BP Neural Network by HAN Zichen, WANG Yi, HE Bin

    Published 2021-01-01
    “…The surface runoff of inland rivers in arid area of Northwest China is a valuable available water resource.However,due to the complexity of runoff composition,runoff simulation is complex,and it is difficult to actually utilize the water resources.This paper applies the back-propagation (BP) neural network combined with the degree-day factor of snowmelt runoff model (SRM) to analyze and simulate the runoff process of Kaidu River Basin in Xinjiang.The results show that:①The simulation accuracy is high.The daily average temperature is the main factor affecting the runoff and process in the target river basin.②Using autocorrelation coefficient method to process daily average flow series can significantly improve the simulation accuracy of annual average daily runoff,especially for daily runoff in the snow melting period (March to May) of target river basin that cannot be effectively simulated by ordinary input.This study provides a new way for the rapid simulation of runoff supplied by glacier,snow melting and precipitation in arid area of Northwest China,and an effective reference for rational utilization of water resources.…”
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    The Use of Agricultural Waste Straw to Enhance Loess Shearing Behaviour: An Experimental Investigation by Lin Wang, Wen-Chieh Cheng, Zhong-Fei Xue

    Published 2020-01-01
    “…Strata erosion in northwest China has become an engineering concern as a result of overdevelopment of land. …”
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    Numerical Simulation and Dynamic Analysis of Single-Hole Cliff-Side Loess Cave Dwelling under Seismic Actions by Yane Hao, Xingwen Liang, Yongqiang Lan

    Published 2021-01-01
    “…Loess cave dwellings are the most typical style of regional architecture in northwest China; now, there are still tens of millions of people living in them. …”
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    Optimization of Controlled Water and Nitrogen Fertigation on Greenhouse Culture of Capsicum annuum by Youzhen Xiang, Haiyang Zou, Fucang Zhang, You Wu, Shicheng Yan, Xinyan Zhang, Jianke Tian, Shengcai Qiang, Haidong Wang, Hanmi Zhou

    Published 2018-01-01
    “…For greenhouse sweet peppers produced in Northwest China, the combination of W0.90N0.75 resulted in the highest economic yield of 34.85 kg·hm−2. …”
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    Impacts of pseudomonas fluorescent bacterial fertilizer addition on the soil environment and fruit yield under water stress in greenhouse grape by Yanting Gao, Hongjuan Zhang, Rui Zhang, Zhen Huang, Changyu Yang

    Published 2025-02-01
    “…Therefore, W1F2 is recommended as the optimal water and fertilizer management scheme for efficient greenhouse grape production in the arid and semi-arid region of Northwest China.…”
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