نتایج جستجو برای: salt mine
تعداد نتایج: 103396 فیلتر نتایج به سال:
The paper approaches the necessity and implementation of a viable solution for constant saline water evacuation, its transportation to surface mine. A major problem in Slanic Prahova salt mine has been found be infiltration. Sump flooding is due high humidity condensation air circulating along Unirea sump, making exchange between underground surface, at temperature 12-15 degrees. Water infiltra...
The stability assessment of the complex salt cavities, placed inside the salt rock mass, represents a real scientific and technical challenge for any researcher focused on the geomechanics field. The purpose of this paper is 3D stability modelling for the Praid salt mines, Romania, taking into account the salt cavities mining dynamics and also the intrinsic parameters’ effect over the salt rock...
یک سری پنج تایی لیگاند چهار دندانه سولفور دهنده: en-bis-dtcna = ethylenebisdithiocarbamate sodium salt pn-bis-dtcna = propylenebisdithiocarbamate sodium salt bu-bis-dtcna = butylenebisdithiocarbamate sodium salt he-bis-dtcna = hexylenebisdithiocarbamate sodium salt oc-bis-dtcna = octylenebisdithiocarbamate sodium salt تهیه شده است. این لیگاندها به روش های ir ,1h-nmr و تجزیه عنصری شن...
Computed tomography studies and histological analyses were performed on the mummified remains found in Chehrābād salt mine northwestern Iran. The ancient mummies are dated to Achaemenid (550–330 BC) Sassanid (3rd–7th century AD) time period died mining incidents. aim of study was describe radiological findings several Iranian with special interest pathological postmortem changes. show multiple ...
The impacts of temperature on the surface thermal damage of rock salt, gypsum and mudstone from the Yingcheng salt mine, China were investigated by the surface crack growth and propagation tests at different temperatures. We found that: (a) high temperature could strengthen the rock salt molecular thermal motion and weaken the cohesion among the rock salt grains, so that the grain boundaries we...
Abstract Industrial heritage assets represent cultural objectives that have multiple values (historical, technological, architectural, cultural, and social). The purpose of this study is to analyze the degree interest tourists visit Unirea salt mine in town Slănic Prahova (Romania) as an industrial attraction. To develop study, authors applied a questionnaire number 348 Romanian with aim evalua...
The crystal structure of the title diprotonated diacetyl-triethyl-ene-tetra-mine (DAT) perchorate salt, C(10)H(24)N(4)O(2) (2+)·2ClO(4) (-), can be described as a three-dimensional assembly of alternating layers consisting of diprotonated diacetyl-triethyl-ene-tetra-mine (H(2)DAT)(2+) strands along [100] and the anionic species ClO(4) (-). The (H(2)DAT)(2+) cations in the strands are connected ...
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