نتایج جستجو برای: shortwall mining
تعداد نتایج: 86652 فیلتر نتایج به سال:
The first step in mining activities is rock excavation in both mine development and production. Constant pressure for cost reduction and creating an improved/safe work environment for personnel has naturally resulted in increased use of mechanical excavation systems in many mining operations. Also, mechanical excavation and mining is more compatible with automation, meaning possibility of reduc...
(odm ( organization data mining به عنوان ابزار استخراج دانش اتکاپذیری ازداده ها تعریف شده است و فن آوری است که فرایند تصمیم گیری رابوسیله ی دگرگون ساختن داده ها به سوی دانش ارزشمند درجهت کسب یک مزیت رقابتی سوق می دهد و بعنوان شیوه بکاربردن ابزارهای داده کاوی تعریف شده است . با توجه به اینکه سازمان ها ، داده های تجاری بسیاری رادر تصرف خوددارند بافلج ساختن اطلاعات یک چالش کلیدی درتصمیم گیری تشکیل...
in this study, results of noise level measurements performed in 4 different mining sites aregiven. noise level measurements performed in opencast mining site of konya ilgin lignite corporation (ilc), in konya eyak mining quarry site and in aydin cine feldspar ore dressing facility have been evaluatedtogether with worker surveys. the noise level measurements performed in manisa soma uyar mining ...
process mining includes the automated discovery of petri nets from event logs. these event logs are the starting point for various discovery and analysis techniques of the process. in this paper process model is developed using colored petri nets (cpns) and the supporting software package cpn tools. the restaurant process model is represented for the analysis using a combination of process min...
in this study, results of noise level measurements performed in 4 different mining sites aregiven. noise level measurements performed in opencast mining site of konya ilgin lignite corporation (ilc), in konya eyak mining quarry site and in aydin cine feldspar ore dressing facility have been evaluatedtogether with worker surveys. the noise level measurements performed in manisa soma uyar mining ...
association rules are among important techniques in data mining which are used for extracting hidden patterns and knowledge in large volumes of data. association rules help individuals and organizations take strategic decisions and improve their business processes. extracted association rules from a database contain important and confidential information that if published, the privacy of indivi...
due to the quick growth of the world wide web, retrieval of useful informationfrom the internet for a particular web user or a group of users becomes verydifficult. recommendation systems using web usage mining help providing anadaptive web environment for the web users. this paper presents a novel approachfor page recommendation using fuzzy association rule mining algorithm. thismethod extract...
This study investigates the characteristics and basic elements of auditing the performance of components of sustainable development of the supply chain in the mining sector, so that it's appropriate to the needs of the mining sector in Iran and socio-economic needs and its share of shortcomings. Reduce problems and obstacles. This research is of applied purpose type and is of qualitative resear...
the uncontrolled spread of illegal artisanal small-scale gold mining (asm), popularly termed “galamsey” in ghana, has, for decades, impacted adversely upon water bodies, soils, wildlife, human health, and safety. a lack of understanding, however, of the types of galamsey, their operational attributes, and their relative impacts has unfortunately hindered an effective policy response despite num...
background: the workers of mines, during a working day, are exposed to stress and psychological pressure that certainly affect the efficiency of their work. this study aimed to determine the level of stress, anxiety, and depression in workers of one copper mine in kerman province, iran. materials and methods: in this cross-sectional study, 250 workers of the operation unit of one copper mine in...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید