Proceedings of the Mongolian Academy of Sciences最新文献_第5页

The result of the study on feeding Young pigs with mineral premixed feed 矿质预混饲料饲喂仔猪的研究结果

Proceedings of the Mongolian Academy of Sciences Pub Date : 2021-08-09 DOI: 10.5564/pmas.v61i02.1760

Sangajav Dorjpurev, Otgonjargal Ayushjav, Togtokhbayar Norovsambuu

引用次数: 0

Physicochemical characterization of drinking water from borehole wells in Ulaanbaatar city, Mongolia 蒙古乌兰巴托市井水的物理化学特征

Proceedings of the Mongolian Academy of Sciences Pub Date : 2021-07-31 DOI: 10.5564/pmas.v61i02.1757

Dashdondog Gerelt-Od, Togtokh Enkhjargal, Zorigt Byambasuren, Ganbold Dagvasuren

{"title":"Physicochemical characterization of drinking water from borehole wells in Ulaanbaatar city, Mongolia","authors":"Dashdondog Gerelt-Od, Togtokh Enkhjargal, Zorigt Byambasuren, Ganbold Dagvasuren","doi":"10.5564/pmas.v61i02.1757","DOIUrl":"https://doi.org/10.5564/pmas.v61i02.1757","url":null,"abstract":"Groundwater is the most important natural source for supplying of drinking water around the world, especially in rural areas. The 14th khoroo (sub-district) of Khan-Uul district of Ulaanbaatar is only one khoroos where its inhabitants engage in animal husbandry and agriculture, which play an important role in the district’s economic growth, faces an increasing shortage of groundwater due to population and economic growth in the agriculture sector in the sub-district. In this study, we present the hydro-chemical characteristics and spatial distribution of aquifer using GIS and multivariate statistical approaches. During the sampling periods, a total of 51 groundwater samples were collected from 46 deep wells and 5 shallow wells in the area between October and November 2019. Samples included parameters of anions and cations (Na+, K+, Ca2+, Mg2+, Cl-, SO42-, NO3-, HCO3-) and EC. Data from all the samples were subject to cluster and component analysis. As a result, three clusters were defined and it was established that the dominant groundwater type is HCO3-Ca2+-Na+. The parameter of Mg2+ and Ca2+ were not set in the permissible limits of the second and third clusters. Principal component analysis (PCA) illustrated that the northern part of the study area is greater affected to anthropogenic activities and aquifer mineralogy. Moreover, it found that Ca2+ and Mg2+ correlated with each other, which could be helpful in site specific monitoring of groundwater quality. The results of the study will contribute to management and quality control of the groundwater in the city.","PeriodicalId":32573,"journal":{"name":"Proceedings of the Mongolian Academy of Sciences","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48349043","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

The Effects of Selenium Nanoparticles (SeNPs) on Ruminant 纳米硒对反刍动物的影响

Proceedings of the Mongolian Academy of Sciences Pub Date : 2020-12-29 DOI: 10.5564/PMAS.V60I4.1500

Khandsuren Badgar, J. Prokisch

引用次数: 2

Climate biocapacity of Mongolia and its change 蒙古国气候生物容量及其变化

Proceedings of the Mongolian Academy of Sciences Pub Date : 2019-10-04 DOI: 10.5564/pmas.v59i2.1219

N. L, M. B, Gomboluudev P

引用次数: 1

Study of anatomical feature of in vitro and ex vitro regeneration plant of Sophora Alopecuroides l. 苦参离体和离体再生植株解剖特征的研究。

Proceedings of the Mongolian Academy of Sciences Pub Date : 2019-10-04 DOI: 10.5564/pmas.v59i2.1217

T. M, B. B, O. Yu

引用次数: 1

A pilot geomagnetic and magnetotelluric survey in Mogod area of the Eastern Hangai, Mongolia 蒙古国东杭盖莫戈德地区地磁大地电磁调查试点

Proceedings of the Mongolian Academy of Sciences Pub Date : 2019-10-04 DOI: 10.5564/pmas.v59i2.1220

B. E, T. B, N. T., G. S., Eldew-Ochir B

{"title":"A pilot geomagnetic and magnetotelluric survey in Mogod area of the Eastern Hangai, Mongolia","authors":"B. E, T. B, N. T., G. S., Eldew-Ochir B","doi":"10.5564/pmas.v59i2.1220","DOIUrl":"https://doi.org/10.5564/pmas.v59i2.1220","url":null,"abstract":"The paper are the preliminary results of the study of the hydrothermal system of Khulj, which is located in Mogod soum of Bulgan aimag, carried out using magnetotelluric and magnetic methods. Khulj’s hydrothermal system is an interesting geodynamic structure located in the area of a young volcanic mountain in the eastern part of the Khangai Mountains. The study was carried out using two geophysical methods. The first is the magnetotelluric measurement, which registered variations of 3 components of magnetic field (Bx, By, Bz), and 2 components of electric field (Ex, Ey). In addition, we have provided a total of 8 magnetic field profiles for an area of 4 x 8 km. The sample rate of the total magnetic field was 3 seconds, which corresponds to about 3 meters. The programme’s codes are written in C ++ and Matlab and the result of this code is a programme called INV2DMAG. This programme is based on the inversion method of the Levenberq-Marquardt algorithm. Magnetotelluric results show that one-dimensional models clearly display the depth, the thickness of precipitation, as well as the thickness of the Moho boundaries. A preliminary two-dimensional magnetic structure, determined from small-length profiles, provides very useful insight into understanding the shallow deep structure of the sedimentary soil of the region in and around Mogod. In the Mogod’s hydrothermal system, we expect that the hot fluid heats up from granites, which have a deep source.For a detailed research, repeat field measurement is required to determine not only the structure of this geothermal system but also to determine the depth of the sedimentary soil.","PeriodicalId":32573,"journal":{"name":"Proceedings of the Mongolian Academy of Sciences","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44459011","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Geospatial modeling approaches for mapping topsoil organic carbon stock in northern part of Mongolia 绘制蒙古北部表层有机碳储量的地理空间建模方法

Proceedings of the Mongolian Academy of Sciences Pub Date : 2019-10-04 DOI: 10.5564/pmas.v59i2.1215

S. M, Purevdorj Ts.

{"title":"Geospatial modeling approaches for mapping topsoil organic carbon stock in northern part of Mongolia","authors":"S. M, Purevdorj Ts.","doi":"10.5564/pmas.v59i2.1215","DOIUrl":"https://doi.org/10.5564/pmas.v59i2.1215","url":null,"abstract":"Soil organic carbon (SOC) is one of the most important indicators of soil quality and agricultural productivity. This paper presents the application of Regression Kriging (RK), geographically weighted regression (GWR) and Geographically Weighted Regression Kriging (GWRK) for prediction of topsoil organic carbon stock in Tarialan. A total of 25 topsoil (0-30 cm) samples were collected from Tarialan soum of Khuvsgul aimag in Mongolia. In this study, seven independent variables were used including normalised difference vegetation index (NDVI), soil adjusted vegetation index (SAVI), normalised difference moisture index (NDMI), land surface temperature (LST) and terrain factors (DEM, Slope, Aspect). We used root-mean-square error (RMSE), mean error (ME) and determination coefficient (R2) to evaluate the performance of these methods. Validation results showed that performance of the GWRK, GWR, and RK approaches were good with not only low values of root-mean-square error (1.38 kg/m2, 1.48 kg/m2, 0.69 kg/m2), mean error (0.28 kg/m2, -0.22 kg/m2, 0.17 kg/m2) but also high values of R2 (0.76, 0.72, 0.94). The estimated SOC stock values ranged from 0.28-16.26 kg/m2, 0.72–15.24 kg/m2, 0.16–15.83 kg/m2 using GWRK, GWR, RK approaches in the study area. The highest average SOC stock value was in the wetland (6.47 kg/m2, 6.08 kg/m2, 6.44 kg/m2) and the lowest was in cropland (1.63 kg/m2, 1.48 kg/m2, 1.80 kg/m2) using these approaches. According to the validation, GWRK, GWR, and RK approaches produced satisfactory results for estimating and mapping SOC stock. However, Regression Kriging was the best model, followed by GWRK and GWR to predict topsoil organic carbon stock in Tarialan.","PeriodicalId":32573,"journal":{"name":"Proceedings of the Mongolian Academy of Sciences","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48112566","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Microstructure and phase transformation of Ni-Ti-Fe-Nd quaternary shape memory alloy Ni-Ti-Fe-Nd四元形状记忆合金的组织与相变

Proceedings of the Mongolian Academy of Sciences Pub Date : 2019-04-26 DOI: 10.5564/PMAS.V59I1.1136

Dovchinvanchig Maashaa

引用次数: 0

Probabilistic seismic hazard assessment for Bayankhongor aimag of Mongolia 蒙古巴彦淖尔地区地震危险性概率评价

Proceedings of the Mongolian Academy of Sciences Pub Date : 2019-04-26 DOI: 10.5564/PMAS.V59I1.1137

A. D., Odonbaatar Ch, M. D, Bayarsaikhan E, Dembereldulam M

{"title":"Probabilistic seismic hazard assessment for Bayankhongor aimag of Mongolia","authors":"A. D., Odonbaatar Ch, M. D, Bayarsaikhan E, Dembereldulam M","doi":"10.5564/PMAS.V59I1.1137","DOIUrl":"https://doi.org/10.5564/PMAS.V59I1.1137","url":null,"abstract":"Central Asia is one of the seismically most active regions in the world. Its complex seismicity is due to the collision of the Eurasian and Indian plates, which has resulted in some of the world’s largest intra-plate events over history. The region is dominated by reverse faulting over strike slip and normal faulting events.The GSHAP project, aiming at hazard assessment on a global scale, indicates that the territory of Bayankhongor aimag, Mongolia, in Central Asia is characterized by maximum bedrock peak ground accelerations for 10% probability of exceedance in 50 years as medium as in range of 80 to 160cm/s2. In this study, which has been carried out within the framework of the project “Seismic microzoning map of center of 12 aimags, Mongolia”, the area source model and different kernel approaches are used for a probabilistic seismic hazard assessment for the Mongolia. The seismic hazard is assessed considering shallow (depth <50 km) seismicity only and employs an updated (with respect to previous projects) earthquake catalogue for the region. The hazard maps, shown in terms of 10% probability of exceedance in 50 years, are derived by using the Open Deterministic and Probabilistic Seismic Hazard Assessment (ODPSHA), which is based on the Cornell methodology. The maximum hazard observed in the region reaches 93-98 cm/s2 , which in intensity corresponds to VII in MSK64 scale in the centre of Bayankhongor aimag for 475 years mean return period.","PeriodicalId":32573,"journal":{"name":"Proceedings of the Mongolian Academy of Sciences","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45409805","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Identifying some factors affecting medical service quality (Case of secondary level hospital) 确定影响医疗服务质量的一些因素（以二级医院为例）

Proceedings of the Mongolian Academy of Sciences Pub Date : 2019-04-26 DOI: 10.5564/PMAS.V59I1.1139

Ariunjargal N

{"title":"Identifying some factors affecting medical service quality (Case of secondary level hospital)","authors":"Ariunjargal N","doi":"10.5564/PMAS.V59I1.1139","DOIUrl":"https://doi.org/10.5564/PMAS.V59I1.1139","url":null,"abstract":"In recent years public concern over health care services has been growing which signals the need for health organisations to improve the quality of their service. The Resolution 13 of the Health Minister issued on 13 January 2014 “On approving guidelines for conducting customer satisfaction surveys” endorsed a questionnaire and a sample form aimed at identifying the quality of medical service and client satisfaction. Every year, state-owned clinics carry out survey among their customers using these documents and accordingly improve on their work and performance. However, customers’ assessment of the quality of services being provided by health organisations has not been able to find any improvement in health services.Since health organisations are service providers, customers’ assessment measures their quality and performance. On the other hand, researchers have identified a number of factors that affect the quality of medical care and customer satisfaction. Therefore, it is significant to optimally identify factors affecting customer satisfaction with regard to health care. Examining the perceptions of and expectations from health care service providers, including practitioners and health organisations, management has been identified as the most important need of the day.Management will make it possible to pinpoint factors that cause poor quality of health care. Most researchers employ the SERVQUAL quality model of Parasuraman, Zeithaml and Berry (1988) Parasuraman (1985), and Zeithaml, Berry (1988) and Gronroos’ (2000) indicators of service quality. The current study investigates the impact of factors that affect the quality of health services, and contains additional indicators related to measuring levels of significance of each dimension oriented to individuals that receive health care from the second tier hospitals of 6 districts in UB and health care providers respectively, plus some measurement items related to organisational issues of improving health care quality and health care system issues that have been identified by the customers themselves.","PeriodicalId":32573,"journal":{"name":"Proceedings of the Mongolian Academy of Sciences","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46378589","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0