نتایج جستجو برای: cave mining
تعداد نتایج: 93589 فیلتر نتایج به سال:
Yarimburgaz is a double cave with slightly offset upper and lower entrance chambers, connected laterally inside the cave. Below Byzantine and modern debris, the upper cave encloses Chalcolithic to Upper Paleolithic occupations above a beach sand attributed to the Last Interglacial. Below the beach sand, strongly modified sediments contain sparse Lower Paleolithic artifacts. The lower cave prese...
Postojna Cave is the biggest of 12 show caves in Slovenia. Because of elevated radon concentrations, it has been under permanent radon survey since 1995 [1]. The driving force for air movement in the cave, and thus the inflow of fresh air and release of the cave air to the atmosphere, is the temperature difference between the cave air and outdoors [2]. In our study, we intend to predict radon c...
We investigated genetic differentiation and migration patterns in a small livebearing fish, Poecilia mexicana, inhabiting a sulfidic Mexican limestone cave (Cueva del Azufre). We examined fish from three different cave chambers, the sulfidic surface creek draining the cave (El Azufre) and a nearby surface creek without the toxic hydrogen sulphide (Arroyo Cristal). Using microsatellite analysis ...
The amount of collected Earth Observation (EO) images is increasing exponentially and their growth is currently in the order of several terabytes per day. Therefore, the ability to automatically store and retrieve these images based on their content is highly desired. Traditional approaches are not accurate and robust enough to handle this massive amount of data. However, the combination of art...
Bacteria and archaea sustain subsurface cave ecosystems by dominating primary production and fueling biogeochemical cyclings, despite the permanent darkness and shortage of nutrients. However, the heterogeneity and underlying mechanism of microbial diversity in caves, in particular those well connect to surface environment are largely unexplored. In this study, we examined the bacterial abundan...
Abstract Pindul Cave system is one of the essential water resources in Wonosari Basin. has a perennial flow and used to cave tubing. Administratively, this research was conducted its surrounding areas located Karangmojo District, Gunungkidul Regency. The aim are: (1) analyze underground (2) estimate catchment area using morphology approach (3) propose management action area. method study survey...
The caves of Igatu, municipality Andaraí, belonging to the region known as Chapada Diamantina represent a new hotspot subterranean fauna. These are siliciclastic, which sedimentary rocks where silica predominates, such sandstones and (following metamorphism) quartzites, makes them even more relevant from point view diversity. For five caves, we named Igatu Cave System (ICS), thirty-seven obliga...
in contemporary arabic literature recalling of quranic characters as the using of characters, events or historical periods in literary works are considered as the latest levels of connection between contemporary literature and his heritage. holy quran is one of the sources which its characters and stories have been used a lot in literature and this has resulted in the enrichment of literature. ...
due to extraordinary large amount of information and daily sharp increasing claimant for ui benefits and because of serious constraint of financial barriers, the importance of handling fraud detection in order to discover, control and predict fraudulent claims is inevitable. we use the most appropriate data mining methodology, methods, techniques and tools to extract knowledge or insights from ...
Gammarus acherondytes is a rare amphipod endemic to Illinois subterranean streams. It previously was recorded from five cave streams in Monroe and St. Clair counties, Illinois. An examination of 164 caves from 1986 to 1995 produced only one new record, Madonnaville Cave, in Monroe County. These recent collections have documented a large population of G. acherondytes in Illinois Caverns, a moder...
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