Inner Mongolia Agricultural University

www.imau.edu.cn/
Hohhot, China

Inner Mongolia Agricultural University is a university in Hohhot, Inner Mongolia, China under the authority of the Autonomous Region government. It is located in Hohhot, the capital city of Inner Mongolia Autonomous Region. It was established in 1958.There are over 100 undergraduate degree programs and postgraduate courses across a range of disciplines, including Agricultural, Engineering, Science, Art, Business, and Management. Wikipedia.


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Zang C.,Inner Mongolia Agricultural University
Journal of Water and Climate Change | Year: 2017

Blue/green water closely links the water cycle and ecological processes. On the watershed scale, how blue/green water flows vary among different typical meteorological years (dry years, wet years, and normal years) remains poorly reported. To analyze the spatial and temporal variability of blue/green water in typical years in the Heihe River Basin, typical meteorological years were obtained by using the standardized precipitation index (SPI) and the precipitation anomaly index (H) and simulated blue/green water flows using the Soil and Water Assessment Tool (SWAT). The typical meteorological years are often not consistent from upstream to downstream in the Heihe River Basin, except in 1978 and 1998. Furthermore, the blue/green water quantities in wet years (1998, 27.93 billion m3) are higher than in dry years (1978, 16.80 billion m3). The green water coefficient (GWC) is more than 87.5% in the entire river basin. There was a negative correlation between the GWC and the degree of dry and wet in the typical meteorological years, as the drier the climate, the higher the GWC. This study provided an understanding of green/blue flows in different reference years to inland river green and blue water resource management. © IWA Publishing 2017.


Wang X.,Old Dominion University | Wang X.,Inner Mongolia Agricultural University
Advances in Water Resources | Year: 2014

Separating effects of climate change (δ. Qc) and human activity (δ. Qh) on stream discharge at the watershed scale is needed for developing adaptive measures to climate change. However, information is scarce in existing literature regarding whether such separating is feasible and whether reliable results can be produced. The objectives of this overview were to: (1) compare currently-used methods; (2) assess assumptions and issues of the methods; and (3) present a generic framework that overcomes possible issues. Based on the overview of fifteen recent representative studies, two methods can be used to estimate absolute magnitudes of δ. Qc and δ. Qh, while another method can be used to distinguish relative magnitudes of δ. Qc versus δ. Qh only. Because the methods' fundamental assumptions about baseline versus altered period, water storage change and deep groundwater loss, precipitation-runoff relationship, hysteresis influence of human activity, and record of time series can seldom be satisfied for many watersheds, it is more realistic and practical to distinguish relative effects than to estimate absolute magnitudes of δ. Qc and δ. Qh. Moreover, a generic framework was presented for gauged watersheds with negligible groundwater loss, aiming to avoid misuse of the methods in practice. © 2014 Elsevier Ltd.


Xiu C.,Inner Mongolia Agricultural University | Klein K.K.,University of Lethbridge
Food Policy | Year: 2010

On September 11, 2008, the Chinese government announced a recall of infant milk powder that was tainted by melamine, a chemical usually used in plastics. Consumption of melamine caused infants to develop kidney stones which, if left untreated, could cause renal failure and death. More than 290,000 people (most of them infant children) were poisoned and at least six babies are confirmed to have died from ingesting the melamine contaminated infant milk powder. The Chinese government imposed very high penalties on people and companies involved in the melamine scandal, including lifetime prison sentences and even executions. The problems in China's dairy industry were a result of rapid growth fueled by large investments from multinational dairy firms, development of a highly modern and concentrated processing sector that obtained its raw materials from millions of small, poor and uneducated traditional farmers and government support and encouragement for growth but with little emphasis on inspection and safety issues. The melamine crisis prompted the Chinese government to bring in a new food safety law, mandate regular inspections of all companies involved in the food business with no exemptions and set new allowable tolerances for melamine in dairy products. © 2010 Elsevier Ltd.


Zhao P.,Inner Mongolia Agricultural University | Cao G.,Inner Mongolia Agricultural University
Journal of Industrial Microbiology and Biotechnology | Year: 2012

Previous research has shown that sheep β-defensin- 1 (sBD-1), a small cationic peptide with a broad range of antimicrobial activities, could inhibit the growth of both Gram-positive and Gram-negative bacteria as well as that of fungi. In order to increase the yield of current ovine defensin puriWcation methods, mature sBD-1 (msBD-1) was added with a 6-His tag on the C-terminus (msBD-1-T) and expressed in Pichia pastoris in the presented work. The msBD-1 and msBD-1-T were expressed in the Pichia pastoris. Both msBD-1 and msBD-1-T were puriWcation, and the two peptides were used to inhibit Escherichia coli, Staphylococcus aureus, Proteus vulgaris, Pseudomonas aeruginosa, and Shigella Xexneri. The antimicrobial activity of the 6-His tagged msBD-1-T peptide was not signiWcantly diVerent from that of the native msBD-1 peptide. The two peptides could inhibit the growth of Escherichia coli, Staphylococcus aureus, Proteus vulgaris, Pseudomonas aeruginosa, and Shigella Xexneri with equal eYciency as well as chemoattractant function. In addition, the yield of puriWed 6-His-tagged msBD-1 was greater than that of msBD-1. The presented method might be a more eYcient approach to produce bioactive sBD-1. © Society for Industrial Microbiology 2011.


Zhang G.,Ehime University | Kang Y.,Kochi University | Han G.,Inner Mongolia Agricultural University | Sakurai K.,Kochi University
Global Change Biology | Year: 2011

The response of natural vegetation to climate change is of global concern. In this research, changes in the spatial pattern of major terrestrial ecosystems from 1956 to 2006 in Inner Mongolia of China were analyzed with the Holdridge Life Zone (HLZ) model in a GIS environment, and net primary production (NPP) of natural vegetation was evaluated with the Synthetic model, to determine the effect of climate change on the ecosystem. The results showed that climate warming and drying strongly influenced ecosystems. Decreased precipitation and the subsequent increase in temperature and potential evapotranspiration caused a severe water deficiency, and hence decreased ecosystem productivity. Climate change also influenced the spatial distribution of HLZs. In particular, new HLZs began to appear, such as Warm temperate desert scrub in 1981 and Warm temperate thorn steppe in 2001. The relative area of desert (Cool temperate desert scrub, Warm temperate thorn steppe, Warm temperate desert scrub, Cool temperate desert and Warm temperate desert) increased by 50.2% over the last half century, whereas the relative area of forest (Boreal moist forest and Cool moist forest) decreased by 36.5%. Furthermore, the area of Cool temperate steppe has continuously decreased at a rate of 5.7% per decade; if the current rate of decrease continues, this HLZ could disappear in 173 years. The HLZs had a large shift range with the mean center of the relative life zones of desert shifting northeast, resulting a decrease in the steppe and forest area and an increase in the desert area. In general, a strong effect of climate change on ecosystems was indicated. Therefore, the important role of climate change must be integrated into rehabilitation strategies of ecosystem degradation of Inner Mongolia. © 2010 Blackwell Publishing Ltd.


Wang L.,Inner Mongolia Agricultural University | Zhang J.,CAS Lanzhou Institute of Chemical Physics | Wang A.,CAS Lanzhou Institute of Chemical Physics
Desalination | Year: 2011

Batch adsorption experiments were carried out for the removal of methylene blue (MB) cationic dye from aqueous solution using chitosan- g-poly (acrylic acid)/attapulgite composites (CTS- g-PAA/APT) as adsorbent. The effects of attapulgite (APT) content, initial pH value of the dye solution and temperature on adsorption were investigated. Results showed that APT content of composites had some influence on adsorption capacities, and introducing a small amount of APT could improve adsorption capacity of chitosan- g-poly (acrylic acid) (CTS- g-PAA) to a certain extent. Results from kinetic experimental data showed that the adsorption rate of MB on CTS- g-PAA and CTS- g-PAA/APT with 30% of APT was fast, and more than 90% of the maximum adsorption capacities for MB were achieved within the initial 15. min. The adsorption behaviors of CTS- g-PAA and CTS- g-PAA/APT showed that the adsorption kinetics and isotherms were in good agreement with a pseudo-second-order equation and the Langmuir equation, and the maximum adsorption capacities reached 1873 and 1848. mg/g for CTS- g-PAA and CTS- g-PAA/APT, respectively. The discussion results of the desorption studies implied that CTS- g-PAA and CTS- g-PAA/APT can be used as promising adsorbents for the removal of MB from wastewater. © 2010 Elsevier B.V.


Huang L.,Inner Mongolia Agricultural University
Xi bao yu fen zi mian yi xue za zhi = Chinese journal of cellular and molecular immunology | Year: 2013

To study the anti-inflammatory mechanism of geniposide and observe the effect of geniposide on the expression of Toll-like receptor 4 (TLR4), the activity of NF-κB, and the release of pro-inflammatory cytokines- TNF-α, IL-1, and IL-6-in the RAW264.7 macrophages treated with lipopolysaccharide (LPS). There were three experimental groups, including the control group, LPS group and LPS combined with geniposide group in this study. RAW264.7 macrophage cells were treated with LPS to induce cellular inflammation. Cell proliferation was measured by CCK-8. The concentrations of TNF-α, IL-1, and IL-6 in cell culture media were measured by ELISA. mRNA levels of TLR4 and P65 were examined by real-time PCR. The protein levels of p-IκB, P65, p-P65 and TLR4 were detected by Western blotting. Geniposide had no effect on cell proliferation. However, geniposide down-regulated the expression of TNF-α, IL-1, and IL-6, and also inhibited the expression of TLR4 and the activity of NF-κB. Geniposide exerts its anti-inflammatory effect through inhibiting the activity of NF-κB in the TLR4-NF-κB pathway in macrophages.


Sheng X.,Inner Mongolia Agricultural University | Zhang J.,Beijing Institute of Technology
Colloids and Surfaces A: Physicochemical and Engineering Aspects | Year: 2011

Sustaining an air layer on superhydrophobic surface is known necessary for the applications of the "air layer effect" underwater on basis of previous literatures. However, the air layer becomes unstable when put underwater and even disappears when the hydraulic pressure increases. Thus much attention has been focused on the sustainability of an air layer on a superhydrophobic surface. This article studies the sustainability of the air layer on the surface of a lotus leaf by applying external pressure on the surface, which is a direct method to measure the sustainability of the air layer. It is displayed that the hydraulic pressure is a key factor to sustain an air layer on a superhydrophobic surface. Maintaining a certain amount of hydraulic pressure is necessary to sustain an air layer on a superhydrophobic surface, which may be important for the low drag or friction reduction of a superhydrophobic surface underwater. Therefore, we believe that the micro-designs of superhydrophobic surface which is capable of the "air layer effect" underwater should be connected with hydraulic pressure applied on it. © 2011 Elsevier B.V.


Sheng X.,Inner Mongolia Agricultural University | Zhang J.,Beijing Institute of Technology
Applied Surface Science | Year: 2011

In this article, directional movements of drops on the ratchet-like superhydrophobic surfaces were observed. High-speed CCD images showed the caterpillar-like crawl of a drop on the inclined superhydrophobic surfaces as it rolled along the ridge of ratchet. In contrast, along the opposite direction, the movement of the drop only depended on the end of triple phase contact line while the front of contact line was pinned. The sliding angle (SA) measurements indicated that the ratchet-like superhydrophobic surfaces had directional drop retention traits. Moreover, the reduction of the rise angle ω1, the height d of the ratchet's ridge and the volume V of the drop can greatly enhance the directional difference of drop retention on the ratchet-like superhydrophobic surfaces. Therefore, it was concluded that the superhydrophobicity and the periodic ratchet-like microstructures were the keys to the directional drop sliding at one-dimensional level. We believe that these findings would be helpful to better understand the ratchet-like effect on the superhydrophobic surfaces and guide some novel engineering applications. © 2011 Published by Elsevier B.V. All rights reserved.


Bian Y.,Inner Mongolia Agricultural University
Xi bao yu fen zi mian yi xue za zhi = Chinese journal of cellular and molecular immunology | Year: 2013

To isolate and culture skeletal muscle satellite cells of Luxi cattle embryo and study its biological characteristics. The skeletal muscles were taken from the limbs of Luxi cattle embryo of 30-50 d old to isolate and culture the skeletal muscle satellite cells by differential adherence method and co-digestion of type I collagenase and trypsin. Satellite cell surface markers, desmin, MyoD, c-Met, Myf5 and pax7 were detected by immunocytochemistry and RT-PCR, and its biological characteristics were researched. The satellite cells were cultured to over passage 15. Cell viability was (97.90 ± 0.96)% after cryopreservation. The immunocytochemical staining showed that the specific surface antigen markers desmin and MyoD were positive, and RT-PCR also indicated the positive expressions of desmin, Myf5, c-Met and pax7. Colony formation was (56.39 ± 1.41)%. The karyotype analysis demonstrated that the isolated satellite cells were all derived from normal cattle embryos. Bovine satellite cells were successfully induced into osteoblasts and neuron-like cells by various inductors, and were positively expressed after alizarin red and toluidine blue staining. The osteoblast specific genes osteopontin and type I collagen and the nerve cell specific genes MAP-2 and nestin were positive by RT-PCR. The skeletal muscle satellite cells of the Luxi cattle embryo are successfully isolated and cultured in vitro , They have the ability of being differentiated into osteoblasts and neuron-like cells.

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