Zobrazeno 1 - 10
of 62
pro vyhledávání: '"Le Hung TRINH"'
Publikováno v:
Geodetski Vestnik, Vol 68, Iss 03, Pp 313-326 (2024)
Vietnam is a country with rich mineral resources, of which coal reserves are about 8.6 billion tons, concentrated mainly in the coal basin of Quang Ninh province. Besides the economic and social benefits, coal mining has negative impacts on the envir
Externí odkaz:
https://doaj.org/article/537e4c6cc1454218a4fea6c4f6500841
Autor:
Xuan Bien Tran, Le Hung Trinh, Quoc Long Nguyen, Yuri M. Levkin, Igor V. Zenkov, Thi Hanh Tong
Publikováno v:
Горные науки и технологии, Vol 8, Iss 2, Pp 173-182 (2023)
Illegal mining, including the violation of lease boundaries during the extraction of mineral deposits in Vietnam, has witnessed a significant surge in recent years, leading to substantial environmental degradation. Due to the remote locations of mini
Externí odkaz:
https://doaj.org/article/1722a94d2be64e22acae7e29902671c4
Substantiation of pillar parameters in mining of inclined coal seams in Quang Ninh Province, Vietnam
Publikováno v:
Горные науки и технологии, Vol 7, Iss 2, Pp 93-99 (2022)
Design and operation of auxiliary underground workings in coal mines involves substantiation of parameters of coal pillars and requires development of new approaches to substantiate their geometrics. On the one hand, sufficient stability of a “rock
Externí odkaz:
https://doaj.org/article/156700fb5f144c42942077a3d64472d9
Autor:
Le Hung Trinh, Viet Nghia Nguyen
Publikováno v:
Горные науки и технологии, Vol 6, Iss 4, Pp 233-240 (2021)
Khanh Hoa coal mine (Thai Nguyen province) is one of the largest coal mines in the north of Vietnam. For many years, this area suffered from underground fires at coal mine waste dumps, seriously affecting production activities and the environment. Th
Externí odkaz:
https://doaj.org/article/47005c0115ab4b598b731703337c6ad5
Autor:
Si Son Tong, Thi Lan Pham, Quoc Long Nguyen, Thi Thu Ha Le, Le Hung Trinh, Xuan Cuong Cao, Adeel Ahmad, Thi Huyen Ai Tong
Publikováno v:
Geography, Environment, Sustainability, Vol 13, Iss 2, Pp 175-184 (2020)
Investigating information on land cover changes is an indispensable task in studies related to the variation of the environment. Land cover changes can be monitored using multi-temporal satellite images at different scales. The commonly used method i
Externí odkaz:
https://doaj.org/article/ca513fea1db4445292f159cb7d732866
Autor:
Le Hung Trinh
Publikováno v:
Горные науки и технологии, Vol 4, Iss 4, Pp 309-317 (2019)
This paper presents the experiences obtained in the application of Principal Component Analysis (PCA) method to map hydrothermal minerals based on remotely sensed data. In this study, Sentinel-2B MultiSpectral Instrument (MSI) image is used to detect
Externí odkaz:
https://doaj.org/article/61d03a7fa6644b0b999d1a3ac13cb2b2
Autor:
Le Hung Trinh, V. R. Zabloskii
Publikováno v:
Горные науки и технологии, Vol 4, Iss 1, Pp 65-75 (2019)
Landsat multispectral images have been successfully used for discovering some mineral deposits in different regions of the world. Some minerals, including clay minerals and iron oxide, can be detected by multispectral surveys due to their spectral ch
Externí odkaz:
https://doaj.org/article/6e23312c88a24c5e8481eb2389c975df
Autor:
Le Hung Trinh, V. R. Zablotskii, Thi Giang Le, Thi Thu Hien Dinh, Thi Trinh Le, Thi Tham Trinh, Thi Thu Nga Nguyen
Publikováno v:
Geography, Environment, Sustainability, Vol 11, Iss 3, Pp 49-60 (2018)
The traditional methods for measuring water quality variables are timeconsuming and do not give a synoptic view of a water body or, more significantly, a synoptic view of different water bodies across the landscape. However, remote sensing technology
Externí odkaz:
https://doaj.org/article/9bc20ec8d2804c519e52eebb889f8440
Publikováno v:
Bulletin of the Mineral Research and Exploration, Iss 153, Pp 159-167 (2016)
Jeokimyasal verilerin saha dağılım desenlerinin belirlenmesi çalışmalarında uzamsal küme ve aykırı değerler büyük önem taşır. Bunlar, sadece cevherleşmenin temel özelliklerini değil, aynı zamanda maden yatağının ve cevher miner
Externí odkaz:
https://doaj.org/article/117bf5e44e5e4fe38b9cb27cc0fefa7c
Autor:
Le Hung Trinh
Publikováno v:
Горные науки и технологии, Iss 1, Pp 60-65 (2016)
This article presents a study on the application of remote sensing techniques to detect clay minerals, iron oxide and ferrous minerals using LANDSAT 7 ETM+ multispectral images. We used band ratio method to determine areas that are rich and poor in m
Externí odkaz:
https://doaj.org/article/778e24d497a14bd1980667f43249a881