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Search Results: 1 - 10 of 11861 matches for " Yin Baoru "
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Preparation and high performance liquid chromatographic separation of casein peptides

Cai Huanxin,Yin Baoru,Yao Ping,
Cai H
,Yin B,Yao P

色谱 , 2010,
Abstract: A preparative reversed-phase high performance liquid chromatography-electrospray ionization mass spectrometry (RP-HPLC/ESI-MS) method to obtain low cost casein peptides was developed. Casein was hydrolyzed by trypsin and the hydrolysate was analyzed by RP-HPLC/ESI-MS firstly. The gradient elution program in an analytical column was optimized to achieve a better separation. The effect of pH of the mobile phase on the separation was also investigated. Then, the optimal analytical conditions were applied in a preparative column directly. In each loading of the hydrolysate, several pure peptide fractions were collected automatically by the inductions of ultraviolet absorbance and mass spectrometry signals together. The process is simple and effective. The influence of the loading amount in a preparative column was investigated intensively. For the collection consisting of hydrophilic peptides that were poorly separated in the primary process, secondary separation was performed. By changing the gradient elution, several different pure peptides were obtained.
A preliminary study on the treatment of bruxism by biofeedback therapy  [PDF]
Xuemeng Yin, Xinmin Yin
Open Journal of Stomatology (OJST) , 2014, DOI: 10.4236/ojst.2014.41001

Objective: To evaluate the effect of wireless biofeedback therapy on bruxism. Methods: Fifteen bruxiers participated to be treated by this therapy. The abnormal movements of teeth during sleep were monitored by a maxillary splint with an electric resistance strain gauge. Meanwhile, the receiver device recorded these details and analyzed the data, including the value of the biting force, occurring time and duration. If the value of biting force or duration exceeds the threshold, a vibrating device like a watch style will alert the patient to relax the masticatory muscles and nervous system to stop the abnormal grinding or clenching. Data were recorded during 8 hours’ sleep and analyzed after the 12 weeks’ treatment and 24 weeks’ treatment. Results: The average episodes of bruxism have declined from (10.60 ± 1.23) to (6.60 ± 0.75) after 12 weeks’ treatment (p < 0.05), and the average duration of bruxism events was reduced from (13.2 ± 0.74) s to (6.50 ± 0.40) s (p < 0.05). The average episodes of bruxism have declined to (3.80 ± 0.64) after 24 weeks’ treatment, and the average duration of bruxism events was reduced to (3.37 ± 0.34) s (p < 0.05). Conclusions: The results suggest that biofeedback therapy can be effective for bruxism treatment.

Soilwater deficit under different artificial vegetation restoration in the semi-arid hilly region of the Loess Plateau

YANG Lei,WEI Wei,MO Baoru,CHEN Liding,

生态学报 , 2011,
Abstract: Because of the semi-arid climate and water scarcity in China's Loess Plateau, soil water, the effective water source for plant growth, has become a key limiting factor in vegetation restoration and ecological reconstruction in the region. However, these activities without an appropriate scientific guidance may result in excessive water consumption and soil water deficit in different soil layers, which in turn restrict significantly the local ecological restoration and environmental enhancement. Quantitative evaluation of soil water deficit and its profile distribution based on local rainfall and soil water condition is the premise and foundation for proper vegetation restoration and sustainable ecological development in the Loess Plateau, and therefore is one of the top research priorities at present with both theatrical and practical significance. In this study, we selected a typical semi-arid loess hilly catchment located in the Dingxi city of Gansu province, China, to quantify the response of soil water deficit to different artificial vegetation restoration practices. Soil water under different vegetation covers including Platycladus orientalis, Armeniaca sibirica, Pinus tabulaeformis, Caragana korshinskii, Amygdalus davidiana, Medicago sativa, Populus simonii, Solanum Tuberosum, as well as abandoned land and natural grassland were analyzed based on filed sampling and laboratory test. For comparison purpose, the background soil water content was set to the value of natural grassland covered by local climax community for a long period. Next, the Compared Soil Water Deficit Index (CSWDI) and Plot Compared Soil Water Deficit Index (PCSWDI) were calculated and analyzed to quantify soil water deficit degree and its profile distribution with different vegetation types. The comparison result shows that soil water deficit appeared in all lands with artificial vegetation covers with a different degree except Populus simonii forestland and Solanum tuberosum farmland. In addition, it was found that all artificial vegetation covers had low available soil water storage. PCSWDI of Caragana korshinskii, Pinus tabulaeformis, and Armeniaca sibirica forestland was 0.65, 0.62 and 0.62, respectively. These three vegetation types have led to a serious deep soil desiccation especially in soil layers from 100 to 200 cm. This soil water deficit may last for a long time period due to the fact that water is hardly recharged below 100 cm by rainfall in this area. Soil water deficit was also found in Amygdalus davidiana shrubland and Medicago sativa grassland mostly in soil layers between 100 and 200 cm. However, soil water conditions were favorable compared to those in Caragana korshinskii, Pinus tabulaeformis and Armeniaca sibirica forestland. Soil water deficit in Platycladus orientalis forestland was found mainly in soil layers from 20 to 100 cm. Meanwhile, soil water content increased in the layers below 100 cm with a decreasing CSWDI. No significant soil water defi
Remote Sensing Analysis of Geological Hazards in Haizu Section of Sichuan-Tibert Highway

Niu Baoru,Ma Heping,Lu Lushi,Bao Baogui,

地球信息科学 , 2000,
Abstract: The paper mainly discusses the geological hazards such as the landslides, falling and debris at Haizu section of the Sichuan-Tibet highway in term of the pricinple of the Remote Sensing Geo-Analysis.At the same time, on the base of the Remote Sensing analysis, this region was partitioned by the engineering geological characteristic, and all these has provided the elementary material for the revision and hazards mitigation of the Sichuan- Tibet highway.
The Co-planarity and Symmetry Principle of Earthquake Occurrence  [PDF]
Zhe Yin
International Journal of Geosciences (IJG) , 2010, DOI: 10.4236/ijg.2010.11005
Abstract: Under the assumption that the earth movement tendency is a sphere, the author does research about the earthquakes occurrence between 2001 and 2010 which over 6 scales of magnitude on occurred time (UTC), magnitude, longitude, latitude and other data, then give out the causal relationship of earthquakes and the co-planarity and symmetry theory of earthquake occurrence. Also, the author does empirical analysis in the paper.
The Law of Genetic Inheritance  [PDF]
Yin Zhe
Open Journal of Genetics (OJGen) , 2012, DOI: 10.4236/ojgen.2012.21005
Abstract: In this paper, based on binomial formula, a law of genetic inheritance is proposed, and it would have certain reference value for future genetic inheritance research. Besides, a recursive algorithm for recessive inheritance is also proposed. Given any two of the male parent, female parent and filial generation, the genomic information of the third one can be calculated uniquely.
Solving a Nonlinear Multi-Order Fractional Differential Equation Using Legendre Pseudo-Spectral Method  [PDF]
Yin Yang
Applied Mathematics (AM) , 2013, DOI: 10.4236/am.2013.41020

In this paper, we apply the Legendre spectral-collocation method to obtain approximate solutions of nonlinear multi-order fractional differential equations (M-FDEs). The fractional derivative is described in the Caputo sense. The study is conducted through illustrative example to demonstrate the validity and applicability of the presented method. The results reveal that the proposed method is very effective and simple. Moreover, only a small number of shifted Legendre polynomials are needed to obtain a satisfactory result.

Cointegration Analysis and ECM of Industrial Economy and Direct Foreign Investments of China  [PDF]
Ying Yin
iBusiness (IB) , 2013, DOI: 10.4236/ib.2013.51B008
Abstract: Based on cointegration theory and Granger causality test, applied on the gross domestic production of industry and direct foreign investments economic statistic data from 1983 to 2010 of China to analyze the long and steady dynamic equilibrium relations. Research results indicate that there is long-term stable one-way Granger causality relationship between the growth of gross domestic production of industry and direct foreign investments. The growth of direct foreign investments affect the growth of gross domestic production of industry, but industrial economic growth is not the reasons of the direct foreign investments.
The Application Research of “The Kite” Law in Chinese Universities Logistics Reform  [PDF]
Yajun Yin
Creative Education (CE) , 2014, DOI: 10.4236/ce.2014.514142

“The Kite Management Philosophy” tells us: Before making change, an organization should fully understand the surrounding environment, prepare related factors and develop a suitable system. After the conditions are ripe, it must boldly implement the organizational goals and be good at controlling. The current biggest problem of obsessing and obstacle of the Chinese universities logistics reform is not properly handling the relationship between logistics public welfare and marketability. The dependence relationship of the two aspects is like a flying kite—more public welfare means taking back and more marketability means flying off. Managers should follow “The Kite Management Philosophy”, timely release and recycle the cord according to the actual situation. They should dare to reform, be good at controlling and have the courage to innovate.

Compact Extrapolation Schemes for a Linear Schrödinger Equation  [PDF]
Xiuling Yin
American Journal of Computational Mathematics (AJCM) , 2014, DOI: 10.4236/ajcm.2014.43017

This paper proposes a kind of compact extrapolation schemes for a linear Schr?dinger equation. The schemes are convergent with fourth-order accuracy both in space and time. Especially, a specific scheme of sixth-order accuracy in space is given. The stability and discrete invariants of the schemes are analyzed. The schemes satisfy discrete conservation laws of original Schr?dinger equation. The numerical example indicates the efficiency of the new schemes.

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