نتایج جستجو برای: underground gas manufacture
تعداد نتایج: 274464 فیلتر نتایج به سال:
Introduction . Various calculation methods, including empirical, analytical, and numerical ones, are used to assess the effect of undermining on base deformations force variations in structures existing projected pipelines. Empirical methods typically developed using an experimental analysis numerous results obtained during engineering geodetic observations settlements surface terrain shifts ar...
Coal roadway driving is an important part of the underground mining system, and very common in Chinese coal mines. However, the high concentration of respirable dust produced in the blasting operation poses a great hazard to miners’ health as well as the underground environment. In this paper, based on the direct simulation Monte Carlo method, the gas–solid two-phase flow model of particle move...
Environmental protection in the Republic of Uzbekistan with a developed chemical, petrochemical, metallurgical and pharmaceutical industries is an important problem our time. To solve it, domestic copper-chromite catalyst “Chemex-203” was previously developed, which operated for long time energy-saving reversible reactor RKR- 10 process catalytic neutralization ventilation emissions highly toxi...
It is crucial to ensure the safety and integrity of underground gas storage (UGS) infrastructure for energy reliability in California, many other places around world. To address risk management need UGS industry, we take advantage recent advances downhole fiber optic monitoring coupled well-reservoir simulation provide unprecedented understanding flow wells at sites. We have combined advanced o...
There is a continuous and increasing demand for solutions, both software and hardware-based, that are able to productively handle underground utilities geospatial data. Innovative approaches that are based on the use of the European GNSS, Galileo and EGNOS, sensor technologies and LBS, are able to monitor, document and manage utility infrastructures’ data with an intuitive 3D augmented visualis...
A lot of plumbings such as gas pipes and water pipes exist in factories and so on. However, it is difficult for humans to inspect them directly because they are laid underground. Therefore, automated inspection by robots is desirable, and many efforts have been done to solve this problem. However, many of existing inspection robots have to rotate the camera to record images in piping because a ...
In this study, we estimate the demand for natural gas in the subsection manufacture of basic metals of Iran using structural time series model (STSM) over the period of time 1981-2013. Such model contains unobservable elements which have been transported to state space model with the use of kalman filter and is estimated by implementing maximum likelihood approach. Also, because the Targeting o...
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