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Jan 20, 2026Open Access
The research on the main controlling factors of tight oil has always been the core content of unconventional oil and gas geology theory. Taking the tight oil of Chang 81 reservoir group in W105 area of Nanliang Oilfield in Ordos Basin as the research object, the characteristics of reservoir sand body thickness, lithology, reservoir space and physical properties were analyzed by using logging, mud logging, core, mercury injection and oil test data. The type of Chang 81 reservoir was clarified, an...
Dec 16, 2025Open Access
The changing perspective of climate causes the increasing of natural disasters all over the world. The calamity of thunderstorms is also a consequence of these global alterations. Thunderstorms are more frequent in countries of tropical regions. People of Bangladesh are significantly vulnerable to such kind of natural disaster due to their geographical location and their daily activities. It occurs scatteredly and causes numerous fatalities across the country. Therefore, it is essential to under...
Nov 17, 2025Open Access
Water quality is a critical determinant of public health, livelihoods, and sustainable development, particularly in communities dependent on natural water sources. This study assessed the main water sources, water quality, community perceptions, and the implications for health and livelihoods in the Tana Delta, southeastern Kenya. Household surveys, focus group discussions, and environmental assessments were conducted to evaluate water use, safety perceptions, and health outcomes. Findings indic...
Nov 10, 2025Open Access
Currently, Pingyang County, Cangnan County, and Longgang City are promoting the integrated development of the three regions. Against this background, the transportation system, especially the highway passenger transport network, serves as an infrastructure carrier that connects different regions and facilitates the flow of factors. Its structural characteristics and operational efficiency directly affect the realization degree and development quality of regional integration. Taking Longgang City...
Oct 10, 2025Open Access
This work proposes an application of the dot density method to the spatial representation of the population in the city of Jeddah, the second-largest agglomeration of Saudi Arabia, marked by a strong demographic dynamic and a contrasting spatial organization. This city is a relevant field in which to experiment with cartographic approaches based on the visualization of statistical data. First, we outline the conceptual foundations of the method, its objectives and the different ways in which it ...
Sep 16, 2025Open Access
This research aims to explore changes in Land Use and Land Cover (LULC) and how LULC have an influence on the Land Surface Temperature (LST) in Rupandehi district. Multiple Landsat imagery across the two decades was utilized, particularly Landsat 7 ETM for 2003 and 2013, and Landsat 8 OLI/TIRS for 2023. Both QGIS and ArcGIS Pro were used for spectral indexing. LULC classification was performed in R using Random Forest, where 5 major classes were categorized. A confusion matrix that was also per...
Sep 04, 2025Open Access
Bangladesh is a riverine country carrying a massive load of sediment and water, which forms many coastal charlands in the southern part of the country where these rivers drain into the Bay of Bengal. Considering this state, the coastal charlands of Bangladesh are highly dynamic as these change their size, shape, orientation, and other physical attributes frequently. Focusing on one of these chars, which is Char Kasem, an isolated coastal char of the Patuakhali district of Bangladesh, spatio-temp...
Aug 26, 2025Open Access
This paper deeply explores the strategy of how Zhangjiagang City drives leapfrog development with high-quality population development. Through analyzing the current population status and development trend of Zhangjiagang City, the importance of high-quality population development in economic growth, social progress and urban competitiveness improvement is expounded. From multiple dimensions such as education enhancement, employment optimization, talent introduction, population structure improvem...
Aug 22, 2025Open Access
This paper focuses on the cooperation between Twangiza Mining, an industrial highland long-term open-pit gold mine, in the eastern part of the DR Congo, and neighboring communities. Various projects have been implemented, including: water supply, education, health care, infrastructure, ecological rehabilitation, humanitarian assistance, and sustainable income generation through income generating activities. Results show that most people in the local community used to live in aggravated poverty, ...
Aug 14, 2025Open Access
Land is a fundamental resource in the development process, especially in developing countries where land based extractive activities are the main basis of livelihoods in the rural areas. Land tenure is defined as a system of rights and institutions that govern ownership, access and use of land is critical in determining agricultural productivity and management of land-based resources. Understanding tenure systems and their effect on agricultural production is important in any country’s efforts t...
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