Ulaanbaatar, Mongolia

The Mongolian University of Science and Technology , often referred to as MUST; Mongolian: Шинжлэх Ухаан, Технологийн Их Сургууль, was founded in 1969 as a part of of the National University of Mongolia with 5 faculties and 13 departments and named as the Polytechnic Institute. The Mongolian University of Science and Technology, one of the Leading State Universities of the country, is situated on its extensive campuses in Ulaanbaatar City, Darkhan, Erdenet, Uburkhangai, and Sukhbaatar provinces. Among universities of technology and science in Asia, it was placed the 7th in 2002.It is also one of the largest centers for scientific and cultural exchanges in Mongolia. Approximately two third of the academically educated Mongolians have graduated from MUST. Wikipedia.

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Dash B.,Mongolian University of Science and Technology | Yin A.,University of California at Los Angeles | Jiang N.,CAS Institute of Geology and Geophysics | Tseveendorj B.,Mongolian University of Science and Technology | Han B.,Peking University
Gondwana Research | Year: 2015

Cretaceous volcanism occurred over a wide region of eastern Asia. Hypotheses for its development include intra-continental rifting, continental-arc magmatism, plume activities, and delamination of a previously thickened mantle lithosphere. One of the major obstacles in differentiating the above model is the lack of systematic studies of Cretaceous volcanic rocks in eastern Mongolia and far-east Russia. In this study, we address this issue by examining the timing and geochemistry of Cretaceous volcanic rocks in eastern Mongolia. Our 40Ar/39Ar dating of volcanic rocks together with the existing K-Ar ages of volcanic rocks indicate that Cretaceous volcanism in our study area occurred between 120Ma and 104Ma. Our field investigation and geochemical analysis reveal three types of volcanic rocks in the study area: (1) a bimodal series, (2) a shoshonite series, and (3) a basanite series. Geochemical analysis of the volcanic rocks indicates a highly heterogeneous source, which is characterized by a mixture of depleted, enriched and metasomatized mantle. At least three models may explain the timing, geochemistry, and regional tectonic setting of Cretaceous volcanism in eastern Mongolia: (1) partial delamination of a previously thickened mantle lithosphere generated by arc magmatism and collision tectonics, (2) back-arc extension and its related mantle upwelling due to rapid collapse of a flat subduction slab, and (3) mantle avalanche of a thick pile of cold subducted Paleo-Asian oceanic plates initially trapped at the 670-km endothermic phase transition triggered by westward Pacific subduction causing mixing of several mantle sources. Testing the above models require further studies on the spatial and temporal relationships between Cretaceous volcanism and structural history of NE Asia. In addition, a careful restoration of the position and history of past subducted slabs of the Paleo-Asian oceans may help differentiate the above competing models in the future. © 2013 International Association for Gondwana Research.

Batkhishig B.,Mongolian University of Science and Technology | Noriyoshi T.,Tohoku University | Greg B.,Institute of Geological & Nuclear Sciences
Journal of Asian Earth Sciences | Year: 2010

The Carboniferous Shuteen Complex, a volcano-plutonic ring complex associated with Cu-Au porphyry mineralization, is located in the Gurvansaikhan island arc terrane of South Mongolia. This paper presents new data on the petrography, major and trace element chemistry, and Sr-Nd isotopic chemistry of the Shuteen Complex. We discuss the relationship between volcanic and plutonic rocks of the complex, and consider their similarity to high-Al2O3 trondhjemite-tonalite-granodiorite and adakites. We also consider the origin, magma source, and dynamic processes of the Shuteen Complex; propose a petrogenetic model; and investigate the composition of the subducting slab and the features of arc volcanism at the time. We assess some of the magmatic processes likely to have occurred within the Shuteen Complex, such as Carboniferous slab subduction and partial melting, and examine their influence on magma composition. The Shuteen Complex is geochemically similar to adakite-type rocks. The complex is silica-saturated (SiO2 ≥ 56%), rich in Al2O3 (≥15%), MgO (<6%), Y (≤18 ppm), and Yb (≤1.9 ppm), depleted in heavy rare earth elements, rich in Sr (>400 ppm), and depleted in high field strength elements. It also has a high Sr/Y value, and (87Sr/86Sr)I < 0.7040. The Shuteen Pluton yields a well-defined isochron age of 321 ± 9 Ma, whereas the age of the Shuteen andesites is 336 ± 24 Ma. The Shuteen Complex formed within an island arc setting, and partial melting was the dominant process during petrogenesis. The primary Shuteen magma had an adakitic composition and was probably derived from the partial melting of subducting oceanic crust, possibly with minor local interaction with mantle material. The results of quantitative modelling of mass balance and partial melt equilibrium for the magma source indicate that the subducting slab contained oceanic basalt and a minor component of oceanic sediment, which together with a restite eclogite phase formed the source of the Shuteen magma. The conclusive results of this study provide new insights into the magmatic evolution of the Shuteen Complex. © 2009 Elsevier Ltd. All rights reserved.

Batkhishig B.,Mongolian University of Science and Technology | Noriyoshi T.,Tohoku University | Bignall G.,Resources Group
Economic Geology | Year: 2014

The Shuteen area is located in the Gurvansaikhan island arc terrane of South Mongolia. It contains a large domain of intensely developed silicic and advanced argillic alteration that has strongly affected the adakitic volcanoplutonic Shuteen Complex. The local occurrence of low-grade copper mineralization within porphyritic intrusive rocks is indicative of porphyry-style mineralization. Hydrothermal quartz veins host gold mineralization locally. The results of scanning electron microscope-cathodoluminescence imaging and fluid inclusion microthermometry indicate that the veins and altered rocks at Shuteen were produced by multiple hydrothermal events. The occurrence of CO2 inclusions in quartz from granitoids and the δ34S values obtained for sulfide and sulfate within the hydrothermal breccias provide evidence of the involvement of magmatically derived fluids in the early stages of the Shuteen magmatic-hydrothermal system, inferred to be sourced from a porphyry-style intrusive center. Late-stage fluids produced abundant barren quartz veins and clay alteration assemblages. The weak mineralization and widespread alteration in the Shuteen Complex are typical of lithocaps found in high-level porphyry copper-(gold-molybdenum) and high sulfidation epithermal districts. The present-day erosion level at Shuteen is relatively shallow, implying that economic porphyry-style mineralization may exist at depth within or beneath the Shuteen lithocap. ©2014 Society of Economic Geologists, Inc.

Heumann M.J.,ConocoPhillips | Johnson C.L.,University of Utah | Webb L.E.,University of Vermont | Taylor J.P.,Syracuse University | And 2 more authors.
Bulletin of the Geological Society of America | Year: 2012

Permian sedimentary sequences exposed in southern Mongolia record fi nal closure of the paleo-Asian Ocean and suturing of the terranes of northern China with the southern margin of a vast accretionary complex (the Altaids) in Mongolia. Detrital zircon U-Pb geochronology results presented here are the fi rst of their kind in southern Mongolia. Geologic mapping, stratigraphic interpre tations, and provenance data including U-Pb zircon geochronology suggest that sedimentary strata at two localities in southern Mon golia, Bulgan Uul and Nomgon, were once part of the same closing ocean basin. The Upper Permian sedimentary deposits at Bulgan Uul record an upward-shallowing marine succession that is unconformably overlain by Lower Triassic fl uvial and alluvial strata. The Bulgan Uul marine succession is composed of distal turbidite fan deposits in the lowest portion of the section, with interbedded sandstone and limestone interpreted as shallow-marine deposits at the top of the section. Exposures of Permianaged distal turbidite units at Nomgon are similar in stratigraphic architecture, sandstone provenance, and detrital zircon age distributions to those documented at Bulgan Uul. Paleo current measurements, sandstone provenance data, and U-Pb ages from detrital zircons collected from both study locations document southeastern transport directions for sediment derived from extinct Carboniferous and Ordovician-Silurian arcs of the southern Altaids. Results are consistent with depositional models for remnant ocean basins and indicate diachronous westto-east closure of the paleo-Asian Ocean (a northern segment of Paleotethys) in the Late Permian. Finally, basin reconstructions place the coeval turbidite deposits at Nomgon to the southeast of Bulgan Uul during the Late Permian. These correlative turbidite successions at Nomgon are currently northeast of Bulgan Uul, offset by ~250 km of left-lateral strike-slip faulting across the East Gobi fault zone. © 2012 Geological Society of America.

Sigel K.,Helmholtz Center for Environmental Research | Altantuul K.,Mongolian University of Science and Technology | Basandorj D.,Mongolian University of Science and Technology
Environmental Earth Sciences | Year: 2012

The lack of adequate water supply and sanitation services is a major issue related to sustainable development in many parts of the developing world. New strategic planning approaches which directly address users' needs and demand-often referred to as demand-responsive, community-based or household-centred approaches-are regarded as a crucial step towards improving the situation. This paper investigates household needs and demand for improved water supply and sanitation services in peri-urban, low-income settlements, known as "ger areas", in the city of Darkhan, Mongolia. The paper is based largely on a household survey conducted in a selected ger area subdistrict in Darkhan. The results reveal a complex picture. Even if the existing situation can be regarded as largely "improved" in terms of the definitions stipulated by the Joint Monitoring Programme for water supply and sanitation, it is shown that there is a need for action nonetheless. The paper also argues that the household survey is a useful method for assessing users' needs and demand and for meeting the requirements of demand-responsive sanitation planning approaches. © 2011 Springer-Verlag.

Webb L.E.,University of Vermont | Johnson C.L.,University of Utah | Minjin C.,Mongolian University of Science and Technology
Tectonophysics | Year: 2010

Tectonic studies of the East Gobi Fault Zone in southeastern Mongolia reveal multiple, distinct intracontinental deformation events postdating late Paleozoic arc accretion and continental amalgamation. Metamorphic tectonites of the Tsagan Subarga and Tavan Har blocks, previously mapped as Precambrian basement, comprise a sinistral shear zone dominated by steeply-dipping, northeast-striking foliations. Field observations and petrographic analyses indicate that the protoliths of the metamorphic tectonites are Paleozoic arc volcanic and sedimentary sequences. 40Ar/39Ar step-heating analyses of minerals from pre-, syn-, and late- to post-kinematic lithologies bracket the timing of ductile sinistral shear as Late Triassic. The main phase of distributed deformation associated with cooling through amphibolite-upper greenschist-facies conditions occurred ca. 225Ma and shear zone activity waned ca. 210Ma. Cooling rates inferred from the 40Ar/39Ar data are on the order of 40-20°C Myr-1; apparent differences for the two basement blocks may reflect subsequent differential uplift during Late Jurassic-Cretaceous rifting. Relatively rapid Late Triassic cooling suggests a transtensional component to the deformation and is coincident with core complex formation in northern China. Late Triassic intraplate deformation in southeastern Mongolia is likely the result of far field forces associated with collision between Mongolian arcs and the Siberian craton (i.e. closure of the Mongol-Okhotsk ocean) and/or collisions associated with closure of the Paleotethys. The ductile shear zone has been documented over 250km along strike and has been modified by subsequent brittle deformation events in the Mesozoic and Cenozoic. © 2010 Elsevier B.V.

Tsogbadrakh A.,Mongolian University of Science and Technology
Proceedings - 2014 7th International Conference on Ubi-Media Computing and Workshops, U-MEDIA 2014 | Year: 2014

In Mongolia, ICT sector is intensively developing, the process of network convergence is carried out and the demand for convergent services is constantly increases. At the same time, the operators of Mongolia need to follow the international norms on quality of service parameters for IP networks. In this paper, the current status of ICT sector in Mongolia, communication quality parameters, the international norms on QoS(Quality of Service) parameters for IP networks and practical recommendations for improvement of QoS in VOIP networks of Mongolia is considered. © 2014 IEEE.

Obikane Y.,Mongolian University of Science and Technology
Procedia Engineering | Year: 2015

We studied a stable pilot flame system for a cannon type combustor of turbo-engines by adding both a frontchamber and a pilot flame chamber with an electric ignition system to the conventional two-stage system with two-stage combustion domains: a primary zone and a secondary zone. The electric ignition period was about 1 second with 2760V(theoretical) generated by Kochcroft-Welton circuit, and the fuel was butane gas. The inlet was 25m/sec and the pressure was about 400Pascal at the inlet of combustor.We set two cases for the outlet configuration: a converging nozzle and a turbine. The outlet temperature was 280C at the outlet velocity of 25m/sec, and the temperature was 230C at the outlet velocity of 12m/sec. A sufficiently large rotational speed and torque was obtained to rotate the compressor and fan of the turbine. Weanalyzed the ignition mechanism by solving two dimensional compressible Navier-Stokes equations and found that the role of the front chamberwas to maintain the pilot flame after the ignition shock. We confirmed experimentally that this system can ignite and preserve a stable pilot flame with quite high probability. © 2015 The Authors.

Azjargal J.,Mongolian University of Science and Technology
2014 9th International Forum on Strategic Technology, IFOST 2014 | Year: 2014

Biodiesel (BD) producing from various vegetable oils and animal fats are encouraging alternative fuels to diesel engine because of similar properties compared with standard diesel. The main objective of this review study is to detect influence on engine performance alteration when used BD blends to the diesel engine. The Brake Specific Fuel Consumption value significantly increasing when BD engine speed increases, but the brake thermal efficiency decreased with increasing ratio of the BD in the fuel blend. The average efficiency reduction percent was 12.8 % resulted from various reference studies. Most of the literature review reported a slight reduction in engine power and torque especially with increase of BD volume percent in the diesel blends. And also BD blends shows higher cylinder pressure compared to that of standard diesel. Many experimental results showed that the ignition delay of BD was shorter than the standard diesel fuel at the all engine speeds. The heat release rate for standard diesel is the lowest among most of BD blends. © 2014 IEEE.

Damdinsuren E.,Mongolian University of Science and Technology
Applied Mechanics and Materials | Year: 2014

Mining industry is growing rapidly during the last few years. It shows that the use of explosives is a crucial part mining industry explosion and drilling costs take about 40% of all mining related expenditure. Cost effective explosion procurement and services will help mining industry to save time and money. This process demands the automation of the production of explosives with the goal to save time and manufacture safe and reliable products. This article provides an overview of creating an automated system design for emulsification by using technology of proportionally mixed liquid. © (2014) Trans Tech Publications, Switzerland.

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