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Ulaanbaatar, Mongolia

The National University of Mongolia is the oldest university in Mongolia. This public university is named after Marshal Khorloogiin Choibalsan and hosts twelve schools and faculties in Ulaanbaatar, and runs branches in the Zavkhan and Orkhon Aimags. Approximately one third of the academically educated Mongolians have graduated from NUM.Mongolia's first secondary school was established in 1921. It was hence necessary to bring in an academic institution at an even higher level. In 1942, the Government put forth Mongolia's first university, the National University of Mongolia, with the first students graduating in 1946. During socialism, the University served as a training center for the party elite. Education was paid for and strictly controlled by the state. After democratization, it gradually changed into a more modern university. In 1995, it started to offer bachelor's, master's, and PhD programs.In 2006, there were 12,000 students enrolled, including 2,000 graduate students. The university offers over 80 undergraduate and graduate programs, mostly in Mongolian. Wikipedia.

Paknia O.,University of Ulm | Pfeiffer M.,University of Ulm | Pfeiffer M.,National University of Mongolia
Diversity and Distributions | Year: 2011

Aim The scale of observation is important in detecting the spatial variation of biological assemblages, which should be taken into consideration for an appropriate plan of biogeographical conservation. We investigated whether (1) World Wildlife Fund's ecoregion units are the appropriate scale for conserving ant diversity in Iran, (2) each ecoregion represents a distinct ant community composition and (3) patterns of diversity partitioning differ among four ecoregions.Location Iran, a sampling transect along four arid and semi-arid ecoregions.Methods We applied hierarchical partitioning to data collected from a nested sampling design including four hierarchical levels: 'local', 'landscape', 'ecoregional' and 'whole-region'. Observed alpha and beta diversity components were compared with values of null distributions. Hierarchical cluster analysis was applied to evaluate similarity of ant species composition among ecoregions.Results Partitioning of whole-region species richness showed that 85% of the species richness was generated by beta diversity among ecoregions and landscapes. The highest value of diversity was generated by beta diversity among ecoregions. Unlike whole-region partitioning, separate partitioning within each ecoregion revealed that beta component among localities contributed to species richness of each ecoregion. Ecoregions showed different patterns of diversity partitioning. The alpha component contributed largely to the total diversity of two ecoregions, but for two other ecoregions, beta component contributed more than alpha component. Cluster analysis identified four discrete ant species compositions; however, it split landscapes of one ecoregion into two distinct groups.Main conclusions Whole-region diversity partitioning indicates that ecoregions represent the appropriate scale for conserving ant diversity and that each ecoregion has a distinct ant fauna. However, different conservation strategies should be considered for different ecoregions owing to the differing scales of variation within them. Boundaries of ecoregions remain a subject for further studies. The influence of climate change on ecoregional boundaries should be considered and should be predicted with respect to future conservation maps. © 2010 Blackwell Publishing Ltd. Source

Sambuu O.,National University of Mongolia | Obara T.,Tokyo Institute of Technology
Annals of Nuclear Energy | Year: 2012

The energy demand in Mongolia is expected to increase in the near future. The purpose of the present study was to design a small, modular district heating reactor with passive safety features for long core life to meet the country's expected energy demand. The design concept was based on the advanced and well-proven technology of the high temperature gas-cooled reactor (HTGR) idea. The reactor size was roughly estimated without any active cooling system to remove the decay heat, and the optimal core dimensions chosen were 8 m diameter and 8 m height with 330 MW th of power. Fundamental analyses of the reactor for criticality and burnup were performed by using continuous energy Monte Carlo code MVP 2.0, and the proposed reactor with 20 wt% of uranium enrichment can be critical around 16 years. The initial effective neutron multiplication factor can be suppressed to 1.1351 when there are 9 burnable poison (BP) rods with 12 wt% of boron carbide in B 4C/C composite and 10 wt% of 10B per assembly. © 2012 Elsevier Ltd. All rights reserved. Source

Enkhbat R.,National University of Mongolia
Journal of Global Optimization | Year: 2016

We examine Malfatti’s problem which dates back to 200 years ago from the view point of global optimization. The problem has been formulated as the convex maximization problem over a nonconvex set. Global optimality condition by Strekalovsky (Sov Math Dokl 292(5):1062–1066, 1987) has been applied to this problem. For solving numerically Malfatti’s problem, we propose the algorithm in Enkhbat (J Glob Optim 8:379–391, 1996) which converges globally. Some computational results are provided. © 2016 Springer Science+Business Media New York Source

Soyol-Erdene T.-O.,Seoul National University | Soyol-Erdene T.-O.,National University of Mongolia | Huh Y.,Seoul National University
Chemical Geology | Year: 2013

We studied the diagenetic behavior of rare earth elements (REEs) in a highly productive passive margin setting of the Bering Sea Slope. Site U1345 was drilled during the Integrated Ocean Drilling Program Expedition 323 at a water depth of 1008m currently in the center of an oxygen minimum zone. Pore water concentrations of fourteen REEs were determined down to ~140meters below the seafloor (mbsf). The REE concentrations were higher in the pore water than the deep seawater, indicating that there was significant liberation from the sediments during diagenesis. There was a major peak at ~10mbsf that was more pronounced for the heavy REE (HREE); this peak occurred below the sulfate-methane transition zone (6.3mbsf) and coincided with high concentrations of dissolved iron and manganese. At ~2mbsf, there was a minor peak in REE and Mn contents. Below ~40mbsf, the REE concentration profiles remained constant. The Ce anomaly was insignificant and relatively constant (PAAS-normalized Ce/Ce*=1.1±0.2) throughout the depth profile, showing that the Ce depleted in seawater was restored in the pore water. HREE-enrichment was observed over the entire 140m except for the upper ~1m, where a middle REE (MREE)-bulge was apparent. REE release in shallow depths (2-4mbsf) is attributed to the release of light REEs (LREEs) and MREEs during the organoclastic reduction of Mn oxides in anoxic sediments. The high HREE concentrations observed at ~10mbsf can be attributed to the reduction of Fe and Mn minerals tied to anaerobic oxidation of methane or, less significantly, to ferromagnesian silicate mineral weathering. The upward diffusion flux across the sediment-water interface was between 3 (for Tm) and 290 (for Ce) pmolm-2y-1. © 2013 Elsevier B.V. Source

Bayartogtokh B.,National University of Mongolia
ZooKeys | Year: 2012

This work deals with taxonomy, geographical distribution as well as known ecology of oribatid mites of the genus Conchogneta Grandjean, 1963 in the world. The majority of species belonging to this genus is known to be widely distributed in Europe, but only three of them are found in other areas of the northern hemisphere. Most species of Conchogneta are inhabitants of litter of various types of forestas, terricolous and epiphytic bryophytes, epiphytic lichens, and soil of steppe, river valleys, moor, oligotrophic bogs, floodland assemblages etc. A new species, Conchogneta glabrisensillata sp. n. is described, and another species, C. traegardhi (Forsslund, 1947) is redescribed from the northern and western parts of Mongolia, respectively. Conchogneta is recorded for the first time for the fauna of Mongolia. The species status of C. dalecarlica (Forsslund, 1947) is discussed. Species descriptions are accompanied with detailed illustrations. Furthermore, a key is provided for the identification of adults of the known species of Conchogneta in the world. © Badamdorj Bayartogtokh. Source

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