Showing 50 of 1733 papers

An Iterated Local Search Algorithm for the Districting Problem

Kong Yunfeng, Kong Yunfeng
2022-03-29 ChinaXiv: chinaxiv-202203.00118

The regionalization problem involves partitioning a specific geographic region into several spatially contiguous zones to satisfy the fundamental principle of minimizing intra-zone differences while maximizing inter-zone differences, and finds wide applications in geography, environmental science, e…

Embodied Memory and Its Intrinsic Mechanisms

Jin Yuwei, Sun Xiao, Song Yaowu, Song Yaowu
2022-03-29 ChinaXiv: chinaxiv-202203.00116

Embodied memory research primarily investigates the role of the body and its sensorimotor processes in memory. Manipulating or constraining the physical state, embodied characteristics, or availability of the body can affect the efficiency, valence, and content of memory. The underlying mechanisms c…

Postprint: A Multi-scale Comprehensive Classification Method for Landform Morphology

Yang Weitao, Sun Jianguo, Ma Hengli
2022-03-28 ChinaXiv: chinaxiv-202203.00106

Geomorphological objects often exhibit significant size disparities, spanning specific spatial scales. Existing automatic classification methods for geomorphological forms have not adequately accounted for this characteristic, thereby constraining classification accuracy. By employing the size of ge…

Spatiotemporal Variation Characteristics of Soil Moisture and Its Influencing Factors in the Xiangride-Qaidam River Basin: Postprint

Mengyuan Cheng, Cao Guangchao, Zhao Meiliang
2022-03-28 ChinaXiv: chinaxiv-202203.00107

Soil moisture, as a critical factor of the ecological environment, serves as an important indicator for soil monitoring and ecological environmental change. Based on MOD11A2 LST and MOD13A2 NDVI data, this study analyzes the spatiotemporal distribution characteristics of soil moisture and its influe…

Effects of Different-Aged Abandoned Cropland on Soil Moisture and Species Diversity in the Minqin Qingtu Lake Area (Postprint)

Wang Jia, Tian Qing, Wang Lide
2022-03-28 ChinaXiv: chinaxiv-202203.00108

Using a space-for-time substitution approach, we investigated and analyzed soil moisture dynamics and vegetation succession characteristics across abandoned croplands of varying abandonment ages (1, 2, 4, 8, 13, 20, 30, 40 years and CK) in the Qingtu Lake area of Minqin. The results indicated that: …

Effects of Climate and Human Activities on Vegetation NPP Change in the Loess Plateau (Postprint)

Yang Dan, Wang Xiaofeng
2022-03-28 ChinaXiv: chinaxiv-202203.00110

This study obtained a vegetation NPP dataset for the Loess Plateau from 2000–2018 using the CASA model and quantitatively analyzed the impacts of climate change and human activities on vegetation NPP variation through correlation and residual analysis methods. The results indicate: (1) Vegetation NP…

Postprint: Physicochemical Properties and Composite Shear Strength of Alpine Grasslands at Different Degradation Levels in the Yellow River Source Region

Yang Fucheng, Liu Changyi, Hu Xiasong
2022-03-28 ChinaXiv: chinaxiv-202203.00112

To investigate the impacts of alpine grassland degradation on soil physicochemical properties and root-soil composite shear strength in the Yellow River source region, this study examined alpine grasslands in Henan County, Qinghai Province, within the Yellow River source region. Through field sampli…

Biomass Allocation Characteristics of Erodium oxyrhynchum in Different Habitats and Germination Types: Postprint

Zhang Yuanyuan, Meng Huanhuan, Zhou Xiaobing
2022-03-28 ChinaXiv: chinaxiv-202203.00114

Ephemeral plants represent an important functional group in desert ecosystems, exhibiting diverse habitats and asynchronous germination characteristics in many species. Biomass accumulation and allocation patterns reflect plant responses and adaptive traits to environmental conditions; thus, investi…

Vegetation Cover Dynamics and Their Driving Factors in the Oasis-Desert Ecotone: A Case Study of Cele, Xinjiang (Postprint)

Cao Yongxiang, Mao Donglei, Xue Jie
2022-03-28 ChinaXiv: chinaxiv-202203.00085

The oasis-desert ecotone is an ecological buffer zone between oasis and desert ecosystems, playing a crucial ecological role in maintaining oasis stability and preventing wind erosion. Taking the Cele Oasis-Desert Ecotone as an example, this study selected Landsat remote sensing imagery data, meteor…

Effects of Conservation Tillage on Soil N2O Emissions from Cropland in the Semi-arid Loess Plateau Region (Postprint)

Du Mengyin, Yuan Jianyu, Li Guang
2022-03-28 ChinaXiv: chinaxiv-202203.00087

Nitrous oxide (N2O) is one of the important greenhouse gases in the atmosphere and has attracted considerable attention in the context of global climate warming, with farmland soil being its primary emission source. Among the numerous factors affecting N2O emissions from farmland, tillage practices …

Soil Salinity Accumulation Characteristics During Non-irrigation Season in Long-term Drip-irrigated Cotton Fields (Postprint)

Tan Mingdong, Wang Zhenhua, Wang Yue
2022-03-28 ChinaXiv: chinaxiv-202203.00088

The movement and variation characteristics of soil water and salt during freeze-thaw processes in the non-irrigation season directly affect spring crop irrigation decisions. This study conducted field sampling and monitoring of six cotton field plots with different drip irrigation years in the Xinji…

Postprint of Soil Nutrient and Stoichiometric Characteristics of Russian Olive Shelterbelt in the Kubuqi Desert

Shi Shiling, Xiaomeng Ren, Zhang Xiaowei
2022-03-28 ChinaXiv: chinaxiv-202203.00090

To investigate the soil nutrient and stoichiometric characteristics of Elaeagnus angustifolia shelterbelts on the northeastern edge of the Kubuqi Desert, and to provide a theoretical basis for the sustainable utilization of desert shelterbelts, we selected 30 m × 30 m representative sample plots in …

Variation Characteristics of Soil Extracellular Enzyme Activity and Stoichiometry During Biological Soil Crust Formation on the Loess Plateau (Postprint)

Yao Hongjia, Baorong Wang, An Shaoshan
2022-03-28 ChinaXiv: chinaxiv-202203.00091

Biological soil crusts play crucial roles in enhancing soil resistance to water and wind erosion and improving soil nutrient conditions. Soil extracellular enzyme activity can serve as a microbial indicator of soil biochemical reaction intensity and is of great significance for understanding nutrien…

Analysis of Spatiotemporal Variation in Water Resource Security Based on Agricultural Water Footprint: A Case Study of Hotan Region, Xinjiang (Postprint)

Zhang Lili, Deng Xiaoya, Long Aihua
2022-03-28 ChinaXiv: chinaxiv-202203.00093

The Hotan region is a typical inland arid area, and studying regional water resource security is of great significance for guiding water resource development and utilization, and promoting the sustainable development of socio-economy and water resources. Based on the water footprint theory, this pap…

Hydrochemical Characteristics and Water Quality Assessment of Groundwater in the Plain Area of the Turpan Basin (Postprint)

Bai Fan, Zhou Jinlong
2022-03-28 ChinaXiv: chinaxiv-202203.00094

To investigate the hydrochemical characteristics and water quality status of groundwater in the plain area of the Turpan Basin, 44 sets of groundwater quality monitoring data (33 sets of phreatic water and 11 sets of confined water) were selected based on the comprehensive groundwater pollution surv…

Postprint: Reservoir Optimal Operation for Multi-object Ecosystem Protection and Restoration

Liu Zhejie, Bai Tao, Gao Fan
2022-03-28 ChinaXiv: chinaxiv-202203.00095

Over the past 20 years, with the implementation of integrated water resources planning and scheduling in the Tarim River (hereinafter referred to as the "Tarim River") basin, the ecological water conveyance target of "water flowing to Taitema Lake, with Daxihaizi Reservoir discharging 3.50×108 m³ an…

Lake Balkhash Water Balance Variations and Their Influencing Factors over the Past 60 Years: Postprint

Wang Zheng, Huang Yue, Liu Tie, Zhong Ruisen
2022-03-28 ChinaXiv: chinaxiv-202203.00096

Based on hydrological observation and remote sensing monitoring data, this study obtains information on the area and water level changes of Lake Balkhash over the past 60 years, reconstructs the time series of lake water volume changes, and identifies the characteristics of water volume variations i…

Spatiotemporal Variation and Contribution Analysis of Land Surface Temperature in the Tianshan North Slope Urban Agglomeration: Postprint

Hongwu Liang, Alimjan Kasim, Zhao Hemiao
2022-03-28 ChinaXiv: chinaxiv-202203.00097

The accelerated advancement of urbanization has intensified land use changes, consequently leading to increasingly prominent urban thermal environment issues. Based on MYD21A2 land surface temperature data from the summers of 2005 and 2018, spatial statistical methods were employed to analyze the sp…

Snowmelt-Coupled Xin'anjiang Model for Runoff Simulation in Arid Regions: A Postprint

Zhang Meijie, Lü Haishen, Liu Di
2022-03-28 ChinaXiv: chinaxiv-202203.00098

Within the Xiying River basin above the Jiutiaoling Station, daily data from gridded precipitation and air temperature datasets for the period 2011–2018 were utilized to develop a method for correcting anomalous gridded precipitation points through exploration of the precipitation-runoff causal rela…

Postprint: Applicability Assessment of TIGGE Precipitation Forecasts in Arid and Semi-Arid Regions of China

He Chaolu, Lü Haishen
2022-03-28 ChinaXiv: chinaxiv-202203.00099

As an important component of the currently most authoritative dataset for medium-range ensemble forecasting, the applicability of TIGGE precipitation products in the arid and semi-arid regions of China requires further investigation. Based on observed precipitation data from 2015–2017 in the arid an…

Spatiotemporal Characteristics and Trend Analysis of Precipitation in the Aral Sea Basin: Postprint

Wang Haoxuan, Huang Feng
2022-03-28 ChinaXiv: chinaxiv-202203.00100

Based on the monthly precipitation series of the Aral Sea basin from 1945 to 2019 derived from the CRU (Climate Research Unit) dataset, this study analyzed the spatiotemporal characteristics of annual precipitation variation, intra-annual distribution of precipitation, and complexity changes in prec…

Precipitation Geochemistry and Controlling Factors at the Koxkar Glacier Terminus, Tianshan Mountains: Postprint

Wang Jian, Han Haidong
2022-03-28 ChinaXiv: chinaxiv-202203.00101

Summer precipitation was sampled at the terminus of Koxkar Glacier on the southern slope of the Tianshan Mountains in an inland alpine region. Based on the analysis of ion concentrations, conductivity, and pH values, factor analysis, enrichment factors, and backward trajectory methods were employed …

The Impact of Relational Human Resource Management Practices on Beneficiaries' Altruistic Behavior: A Moral Compensation Perspective

Yang Huan, Wei Xuhua, Xuhua Wei
2022-03-25 ChinaXiv: chinaxiv-202203.00081

Relational human resource management (HRM) practices are prevalent in numerous organizations and institutions. While scholars have devoted considerable attention to their negative impacts on society, organizations, and individuals, prior research has overlooked the other side of relational HRM pract…

Effects of vegetation near-soil-surface factors on runoff and sediment reduction in typical grasslands on the Loess Plateau, China (Postprint)

LI Panpan, WANG Bing, Yanfen Yang, LIU Guobin, YANG Yanfen
2022-03-24 ChinaXiv: chinaxiv-202203.00075

Abstract: Vegetation near-soil-surface factors can protect topsoil from erosion, however, their contributions to the reduction of soil erosion, especially under natural rainfall events, have not been systematically recognized. This study was performed to quantify the effects of near-soil-surface fac…

Adjustment of precipitation measurements using Total Rain weighing Sensor (TRwS) gauges in the cryospheric hydrometeorology observation (CHOICE) system of the Qilian Mountains, Northwest China (Postprint)

ZHAO Yanni, CHEN Rensheng, HAN Chuntan, WANG Lei, CHEN Rensheng
2022-03-24 ChinaXiv: chinaxiv-202203.00076

Precipitation is one of the most important indicators of climate data, but there are many errors in precipitation measurements due to the influence of climatic conditions, especially those of solid precipitation in alpine mountains and at high latitude areas. The measured amount of precipitation in …

Classical Circuit Simulation of the Non-Reciprocal Aubry-Andr\'e Model

成恩宏 (Enhong Cheng), Li-Jun Lang, Li-Jun Lang
2022-03-24 ChinaXiv: chinaxiv-202202.00008

The introduction of non-Hermiticity extends concepts in traditional Hermitian quantum systems and induces many novel physical phenomena, such as the non-Hermitian skin effect unique to non-Hermitian systems, which has made the simulation of non-Hermitian quantum models a focus of attention. Compared…

Validation of the Body Posture Expression Test Battery in Chinese Adults and Children

Yang, Yunmei, HOU, Wenwen, Li, Jing, Li, Jing
2022-03-19 ChinaXiv: chinaxiv-202203.00065

Purpose: The body posture expression stimulus set provides standardized stimuli for emotion research. While the consistency of this stimulus set has been validated in Western adults, its consistency in Chinese populations remains unclear. Therefore, this study selected 42 images each of happiness, s…

The Silver Ratio in the Maximum Deng Entropy Triangle

Deng, Jixiang, Deng, Yong, Deng, Yong
2022-03-18 ChinaXiv: chinaxiv-202203.00069

Pascal's triangle is the triangular arrangement of binomial coefficients, from which one can obtain the Fibonacci sequence and the golden ratio (approximately 1.618). A question arises: Can the silver ratio (approximately 2.414) be obtained from Pascal's triangle? This paper first establishes a Maxi…

Introduction to Python for Big Data Psychology

Lyu Sihua, Song Mengyao, Mo Liuling, Li Dongqi, Zhu Tingshao, Zhu Tingshao
2022-03-18 ChinaXiv: chinaxiv-202203.00020

This paper introduces big data psychology research methods in detail, using Jiujiu Articles Network as a case study. Using text data collected from user experiments, word frequency features are extracted to train machine learning models, which are then utilized to predict the life satisfaction corre…

<PARA id="1">Surveying Library Publishing Development Trends Through the Historical Evolution of the "Library Publishing Directory" Post-print</PARA>

Chu Jingli, Wang Jue, Ren Jiaohan
2022-03-18 ChinaXiv: chinaxiv-202203.00047

By examining the historical evolution of the nine-volume "Library Publishing Directory" released by the Library Publishing Coalition project, this study investigates the development trends of library publishing. Through methods such as literature research and web-based investigation, it analyzes the…

Leaf Morphology of Five Hypoxidaceae Species in China and Its Taxonomic Significance: Postprint

Tian Qin, Duan Hanning, Wang Yunqiang, Li Haitao, Li Lu
2022-03-18 ChinaXiv: chinaxiv-202203.00049

To clarify the taxonomic issues concerning intergeneric systematic relationships in the Hypoxidaceae family, this study selected five species from three genera of Chinese Hypoxidaceae as research subjects. Using light microscopy, scanning electron microscopy, and paraffin sectioning techniques, we o…

Analysis of Fungal Community Composition in Root Endosphere and Rhizosphere Soil of Nervilia fordii from Guangxi Karst Region (Postprint)

Tan Xiaoming, Yang Xinfeng, Sun Xueping, Zhou Yaqin, HU Shiyi, Yuan Changgé, Shi Zhongheng
2022-03-18 ChinaXiv: chinaxiv-202203.00057

To investigate the diversity of fungal communities in the roots and rhizosphere soil of Nervilia fordii (Orchidaceae), this study utilized Illumina MiSeq high-throughput sequencing technology to analyze the fungal composition in the roots and rhizosphere soil of N. fordii from two sampling sites, Da…

Variation in Net Photosynthetic Rate of Grapevine and Its Influencing Factors in Northwest Arid Region: Postprint

Qin Wenhua, Zhang Yang, Zhu Yongtai, Cong Xu, Chen Huiling, Zhu Gaofeng
2022-03-18 ChinaXiv: chinaxiv-202203.00052

As one of the main economic crops in the arid regions of northwestern China, understanding its photosynthetic production process is crucial for cultivation. To investigate the photosynthetic physiological characteristics of grapes under natural field conditions and the main factors affecting grape p…

Postprint: Relationships Between Plant Community Species Diversity and Soil Factors Along Elevational Gradients in the Balguntay Region, Southern Slope of the Central Tianshan Mountains

Ma Zijing, Zhang Yunling, Liu Bin
2022-03-18 ChinaXiv: chinaxiv-202203.00061

To investigate the distribution characteristics of plant community species diversity along an elevation gradient and its relationship with soil environmental factors in the Baluntai region on the southern slope of the middle Tianshan Mountains, this study employed field survey methods, establishing …

Postprint: Rhizosphere Soil Microbial Diversity of Paris polyphylla var. chinensis at Different Growth Years

Xian Kanghua, Su Jiang, Fu Chuanming, He Wen, Liu Baojun, Dongbin Xie, Ningzhen Huang, He Jinxiang
2022-03-18 ChinaXiv: chinaxiv-202203.00062

To investigate the relationship between the growth and development of Paris polyphylla and changes in soil microbial community structure, this study employed Illumina high-throughput sequencing technology to sequence and analyze bacterial 16S rRNA and fungal 18S sequences in the rhizosphere soil of …

Postprint: Diversity of Endophytic Fungi from Guangxi Oleander and Screening for Inhibitory Activity Against Several Aquatic Pathogenic Bacteria

Song Jingjing, Luo Meimiao, Li Lu, Yang Zicong, Wang Lin, Zhuge Liang's wisdom, Qiu Qinghua, Zhu Kaixin, Su Benwei, Gong Bin
2022-03-18 ChinaXiv: chinaxiv-202203.00060

Oleander is an important medicinal plant. To investigate the diversity of endophytic fungi in oleander and evaluate the activity of their secondary metabolites, this study isolated and purified endophytic fungi from Guangxi oleander (Nerium indicum), identified them using a combination of morphologi…

Differences in Growth, Photosynthesis, and Stress Resistance of Mulberry and Paper Mulberry under Bicarbonate Treatment (Postprint)

Li Shihong, Yao Kai, Liu Yingliang, Wu Yanyou
2022-03-18 ChinaXiv: chinaxiv-202203.00063

To investigate the effects of HCO3- on plant growth and physiological characteristics under bicarbonate stress in karst habitats, seedlings of Broussonetia papyrifera and Morus alba were used to examine plant growth, photosynthetic capacity, antioxidant enzyme activities, osmotic adjustment substanc…

Neural Mechanisms of Mental Processing: From Evoked Brain Activity to Generative Brain Activity

Wang Yifeng, Zhang Chi, YAN Jin-Hong, Xiujuan Jing, Wang Yifeng
2022-03-17 ChinaXiv: chinaxiv-202203.00045

The traditional computer metaphor has employed evoked brain activity as the primary means to investigate the neural mechanisms underlying mental processing. Extensive research has revealed that evoked brain activity does not constitute the principal component of brain activity; rather, it interacts …

The Relationship between the Development of Social Mindfulness Understanding and Theory of Mind in Preschool Children

Zhao Xin, Li Dandan, Yang Xiangdong, Yang Xiangdong
2022-03-16 ChinaXiv: chinaxiv-202203.00043

This study investigated the development of social mindfulness understanding in 4- to 6-year-old children and its relationship with theory of mind. The study measured social mindfulness understanding, theory of mind, prosociality, and executive function in 100 children aged 4–6 years. The results rev…

Effects of Transcranial Direct Current Stimulation on Response Inhibition in Healthy Populations

Guo Zhihua, Lu Hongliang, Huang Peng, Zhu Xia, Zhu Xia
2022-03-15 ChinaXiv: chinaxiv-202203.00042

Response inhibition refers to the ability to suppress inappropriate or currently unnecessary behaviors. Studies have demonstrated that response inhibition is primarily associated with the functional integrity of the inferior frontal gyrus, dorsolateral prefrontal cortex, and pre-supplementary motor …

Graded Responses and Evaluation of Driving Characteristics under Road Hazard Stress

Zheng Xinyi, YANG Yanqun, Chen Ming, Said Easa, Zheng Xinyi
2022-03-15 ChinaXiv: chinaxiv-202203.00034

[Objective] To investigate whether driving characteristics influence drivers' stress responses and behaviors when facing traffic hazard events. [Methods] This study employed the Vienna Traffic Psychological Test System (VTS) to test participants in a driving simulation experiment. In the driving sim…

Very Large Area Gamma-ray Space Telescope Program

Fan Yizhong, Chang Jin, Guo Jianhua, Yuan Qiang, Hu Yiming, Li Xiang, Yue Chuan, Huang Guangshun, Liu Shubin, Feng Changqing, Zhang Yunlong, Wei Yifeng, Sun Zhiyu, Yu Yuhong, Kong Jie, Zhao Chengxin, Zang Jingjing, Jiang Wei, Pan Xu, Wei Jiaju, Wang Shen, Duan Kaikai, Shen Zhaoqiang, Xia Ziqing, Xu Zunlei, Feng Lei, Huang Xiaoyuan, Cai Yuelin, Wei Junjie, Zeng Houdun, He Haoning, Li Jian, Yang Ruizhi, Yan Jingzhi, Zhang Yi, Wu Xuefeng, Wei Daming, Yizhong Fan, Chang Jin
2022-03-15 ChinaXiv: chinaxiv-202203.00033

High-energy gamma-ray detection represents one of the primary approaches for investigating extreme astrophysical phenomena. Space-based high-energy gamma-ray detection provides exceptional advantages, including wide energy band coverage, excellent temporal continuity, and high energy resolution. Bui…

Comparison of Urine Proteomes in Tumor-Bearing and Tumor-Resected Mice

Heng Ziqi, Zhao Chenyang, Gao Youhe, Zhao Chenyang, Youhe Gao
2022-03-14 ChinaXiv: chinaxiv-202203.00024

Objective This study addressed the critical concern of clinical surgeons—the efficacy of solid tumor resection. The urinary proteome can sensitively reflect physiological changes in the organism. This study explored changes in the urinary proteome of mice with MC38 subcutaneous tumors following rese…

Postprint on Librarian Capacity Building for Smart Libraries

Chu Jingli, Zhang Guorui
2022-03-13 ChinaXiv: chinaxiv-202203.00032

Smart libraries, as a new stage in library development, should prioritize librarian capacity building as the primary task in their construction process. The fundamental service model of smart libraries involves librarians leveraging intelligent technologies to provide smart services to users. Librar…

Urine Proteomics for Prediction of Escitalopram Efficacy

Shuxuan Tang¹, Yuhang Huan¹#, Youhe Gao¹*, Jian Yang²*, Tang Shuxuan1 Xun Yuhang1# Gao Youhe1* Yang Jian2*
2022-03-11 ChinaXiv: chinaxiv-202203.00030

Abstract Objective: Escitalopram requires approximately 12 weeks to demonstrate efficacy in the treatment of depression. We sought to explore the prediction of drug efficacy before medication administration using a urinary proteome approach. Methods: We selected urine samples from 10 good responders…