Results 21 to 30 of about 11,578,304 (163)

Geostatistical analysis of the spatial distribution of mycotoxin concentration in bulk cereals [PDF]

, 2009
Deoxynivalenol (DON) and ochratoxin A (OTA) in agricultural commodities present hazards to human and animal health. Bulk lots are routinely sampled for their presence, but it is widely acknowledged that designing sampling plans is particularly ...
Origgi, Simona, Weightman, R. M., Magan, Naresh, Weightman, Richard Mark, Parsons, David J., Origgi, S., Rivas Casado, Monica   +6 more
core   +1 more source

Spatial Distribution Characteristics and Accessibility Analysis of Characteristic Towns in Guangdong Province Based on Ripley’s K Function

Journal of Mathematics, 2022
Characteristic towns are an essential focus for developing urbanization and implementing rural revitalization in China. Studying the spatial distribution characteristics and influencing factors are of great significance for the scientific and rational ...
Zhenjie Liao, Lijuan Zhang
doaj   +1 more source

Multiple Global Population Datasets: Differences and Spatial Distribution Characteristics

ISPRS International Journal of Geo-Information, 2020
Spatial data of regional populations are indispensable in studying the impact of human activities on resource utilization and the ecological environment.
Ruxia Chen, Huimin Yan, Fang Liu, Wenpeng Du, Yanzhao Yang   +4 more
doaj   +1 more source

Confirmatory Analysis of the Effect of Socioeconomic Factors on Ecosystem Service Value Variation Based on the Structural Equation Model—A Case Study in Sichuan Province

Land, 2022
Understanding the regional distribution characteristics of ecological service values (ESV) and their driving factors can provide background information and scientific basis for regional environmental protection policy.
Yong Cui, Haifeng Lan, Xinshuo Zhang, Ying He   +3 more
doaj   +1 more source

Spatial models for context-aware indoor navigation systems: A survey [PDF]

, 2012
This paper surveys indoor spatial models developed for research fields ranging from mobile robot mapping, to indoor location-based services (LBS), and most recently to context-aware navigation services applied to indoor environments.
Christophe Claramunt, Imad Afyouni, Christophe, Claramunt, RAY, Cyril, Cyril Ray, AFYOUNI, Imad, CLARAMUNT, Christophe   +6 more
core   +1 more source

The Spatial Distribution of Tree Dieback Affected by Mistletoe in Relation to their Crown Characteristics [PDF]

جغرافیا و پایداری محیط, 2016
1- Introduction One of the main problems in The Zagros Forests is oak trees dieback. What is really certain and important is the fact that the tree dieback crisis caused the declining of oak in oak forest of Zagros. Oak decline is characterized by crown
Erfan Boshkar , Ehsan Sayad , Shayeste Gholami   +2 more
doaj  

Ecosystem Services Assessment, Trade-Off, and Bundles in the Yellow River Basin, China

Diversity, 2021
Understanding ecosystem services(ESs)and their interactions will help to formulate effective and sustainable land use management plans, and clarifying the balance and synergy between watershed ecosystem services can provide a basis for the regulation of ...
Jie Yang, Baopeng Xie, Wenqian Tao, Degang Zhang   +3 more
doaj   +1 more source

Using spatial distribution and behaviour to determine optimal space allowances for poultry and rabbits [PDF]

, 2011
Previous research on the effect of stocking density on welfare has focused on adverse effects on health and behaviour. Absence of such effects does not mean that space allowance is optimal from the animals’ point of view.
Buijs, Stephanie
core   +1 more source

Comparison of Waste Production in Regions of the Czech Republic in 2019-2021

ACC Journal
The purpose of this article is to illustrate the intuitively understood links between the social and economic characteristics of an area and the waste production at a given location.
Zedek Lukáš, Šembera Jan
doaj   +1 more source

Geochemical Characteristics and Spatial-Distribution Controls of Soil Selenium in Ninghua, Fujian Province

Yankuang ceshi
Selenium (Se), an essential trace element for humans, animals, and plants, plays a critical role in ecosystem health and human nutrition. China exhibits significant regional variations in soil selenium content, making systematic research on its spatial ...
Ziqi LI, Ying WANG, Zhongfang YANG, Qingye HOU, Jiufen LIU, Xiaofeng ZHAO, Xiaohuang LIU, Jia LIU   +7 more
doaj   +1 more source