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Search Results: 1 - 10 of 46972 matches for " Yan Xing "
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The effects of steaming and roasting treatments on lipase activity and nutritional components of “oat rice” (OR): the peeled naked oat (Avena nuda) kernels  [PDF]
Xinzhong Hu, Jinting Yan, Xiaohui Xing
Agricultural Sciences (AS) , 2011, DOI: 10.4236/as.2011.22009
Abstract: Peeled naked oat kernels, named “oat rice” (OR) by Chinese food scientists and processors, are novel oat products in China. This study exam-ined the effects of steaming and roasting treat-ments on the enzyme activities, nutritional con-tents, and flour pasting properties of OR kernels. Results showed that a peeling time of 20 s caused 16.13% β-glucan loss, while a peeling time 25 s caused 34.29% β-glucan loss in the kernels. OR kernels with a 20 s peeling treatment demonstrated significantly higher starch levels and kernel whiteness compared with normal oat kernels (P<0.01). It was also found that normal pressure steaming, autoclaved steaming and infrared roasting treatments could exterminate lipase activities in the OR kernels, and provide the OR kernels with significantly lower final viscosities and setback values than normal kernels (P<0.01).
Research on Innovation of Science and Technology Investment and Financing of SMEs in Intellectual Property  [PDF]
Yan Xing, Zhangzhi Ge, Wei Song
Technology and Investment (TI) , 2016, DOI: 10.4236/ti.2016.72005
Abstract: With the development of the knowledge economy, the intellectual property is more and more important. The intellectual property is the core lifeline of an enterprise. High-tech SMEs owe the independent intellectual property rights, but they have financing problems. How to use intellectual property to invest and finance will be the focus of future development of high-tech SMEs. This paper will focus on the characteristics of intellectual property for investment and financing, the development paths and put forward in the course of management and policy innovation of investment and financing.
A Novel Over-Current Protection Technique Applied to Peak-Current Type DC-DC Converter  [PDF]
Yu Fang, Tengfei Wei, Liang He, Yong Xie, Yan Xing
Journal of Electromagnetic Analysis and Applications (JEMAA) , 2010, DOI: 10.4236/jemaa.2010.26045
Abstract: The change of the over-current protection point of the power switches, caused by slope compensation, is analyzed in detail. It is discovered that the peak current protecting value increases as the duty cycle decreases. As a result, the safety operation of the switches is damaged greatly. A novel solution to improve over-current protection with constant peak current limitation is proposed by inducing synchronous slope compensation into the current limit function instead of the original constant voltage. The design principle and method of the protection circuit based on a UC3846 PWM controller for the interleaved dual-forward converter is presented. Experimental results are given to verify the analysis.
COMPARISON OF VOLATILE COMPONENTS FROM MARCHANTIA CONVOLUTA OBTAINED BY MICROWAVE EXTRACTION AND PHYTOSOL EXTRACTION
YAN,CHEN; XING YU,JIANG; XING,TONG; XIAO QING,CHEN;
Journal of the Chilean Chemical Society , 2008, DOI: 10.4067/S0717-97072008000200016
Abstract: the volatile oils from marchantía convoluta were obtained by microwave extraction (me) and phytosol extraction (pe) methods. the attained extracts were analyzed by gas chromatography with mass spectrometric detector (gc-ms). the compounds were identified according to their retention indices and mass spectra (el, 70 ev). a total of fourteen compounds were identified in me extract accounting for 80.72% of total peak area. isolongifolene (24.588%), 1, 2-benzenedicarboxylic acid, butyl cyclohexyl ester (10.768%), pyrene (9.328%) and hexadecanoic acid, ethyl ester (8.570%) were the major compounds identified from me extract. the analytical results of me extract were compared with pe method. the me extract was found to be markedly different from that of pe extract. a total of seven compounds in pe extract were identified accounting for 74.275% total peak area. 1-phenanthrenecarboxylic acid, 1,2,3,4,4a,9,10, 10a-octahydro-1, 4a-dimethyl-7-(1-methylethyl) methyl ester were the major compounds
COMPARISON OF VOLATILE COMPONENTS FROM MARCHANTIA CONVOLUTA OBTAINED BY MICROWAVE EXTRACTION AND PHYTOSOL EXTRACTION
CHEN YAN,JIANG XING YU,TONG XING,CHEN XIAO QING
Journal of the Chilean Chemical Society , 2008,
Abstract: The volatile oils from Marchantía convoluta were obtained by microwave extraction (ME) and phytosol extraction (PE) methods. The attained extracts were analyzed by gas chromatography with mass spectrometric detector (GC-MS). The compounds were identified according to their retention indices and mass spectra (El, 70 eV). A total of fourteen compounds were identified in ME extract accounting for 80.72% of total peak area. Isolongifolene (24.588%), 1, 2-benzenedicarboxylic acid, butyl cyclohexyl ester (10.768%), pyrene (9.328%) and hexadecanoic acid, ethyl ester (8.570%) were the major compounds identified from ME extract. The analytical results of ME extract were compared with PE method. The ME extract was found to be markedly different from that of PE extract. A total of seven compounds in PE extract were identified accounting for 74.275% total peak area. 1-Phenanthrenecarboxylic acid, 1,2,3,4,4a,9,10, 10a-octahydro-1, 4a-dimethyl-7-(1-methylethyl) methyl ester were the major compounds
Study on synchrony of two uncoupled neurons under the neuron’s membrane potential stimulation  [PDF]
Yue-Ping Peng, Jue Wang, Quan-Xing Miao, Hong-Yan Lu
Journal of Biomedical Science and Engineering (JBiSE) , 2010, DOI: 10.4236/jbise.2010.32021
Abstract: The input current of two uncoupled Hindmarsh-Rose neurons under different initial conditions is modulated by the membrane potential of the Hindmarsh- Rose neuron; and the synchronization characteristics of the two uncoupled neurons are discussed by analyzing their membrane potentials and their inter spike interval (ISI) distribution. Under the stimulation of the neuron’s membrane potential whose discharge pattern is period or the chaos, the two uncoupled neurons under different initial conditions, whose parameter r (the parameter r is related to the membrane penetration of calcium ion, and reflects the changing speed of the slow adaptation current) is different or the same, can realize the full synchronization (state synchronization) or discharge synchronization (phase synchronization), and can only be synchronized to the discharge pattern of the stimulation neuron. The synchronization characteristics are mainly related to the discharge pattern and the strength of the stimulation neuron’s membrane potential, and are little related to the parameter r and the initial state of the two uncoupled neurons. This investigation shows the characteristics of the neuron’s membrane potential affecting the synchronization process of neurons, and the neurons’ discharge patterns and synchronization process can be adjusted and controlled by the discharge pattern and the strength of the stimulation neuron’s membrane potential. This result is helpful to study synchronization and encode of many neurons or neural network.
Tandem ChoRE and CCAAT Motifs and Associated Factors Regulate Txnip Expression in Response to Glucose or Adenosine-Containing Molecules
Fa-Xing Yu,Yan Luo
PLOS ONE , 2012, DOI: 10.1371/journal.pone.0008397
Abstract: Thioredoxin interacting protein (Txnip) is a multifunctional protein involved in regulation of cell cycle events and cellular metabolism. The expression of Txnip is known to be induced by glucose, adenosine-containing molecules, and other physiological cues; however, the underlying regulatory mechanisms remain elusive.
Spin-filtering junctions with double ferroelectric barriers

Ju Yan,Xing Ding-Yu,

中国物理 B , 2009,
Abstract: An FS/FE/NS/FE/FS double tunnel junction is suggested to have the ability to inject, modulate and detect the spin-polarized current electrically in a single device, where FS is the ferromagnetic semiconductor electrode, NS is the nonmagnetic semiconductor, and FE the ferroelectric barrier. The spin polarization of the current injected into the NS region can be switched between a highly spin-polarized state and a spin unpolarized state. The high spin polarization may be detected by measuring the tunneling magnetoresistance ratio of the double tunnel junction.
Osteoclast fusion and regulation by RANKL-dependent and independent factors
Lianping Xing,Yan Xiu,Brendan F Boyce
World Journal of Orthopedics , 2012, DOI: 10.5312/wjo.v3.i12.212
Abstract: Osteoclasts are the bone resorbing cells essential for bone remodeling. Osteoclasts are formed from hematopoietic progenitors in the monocyte/macrophage lineage. Osteoclastogenesis is composed of several steps including progenitor survival, differentiation to mono-nuclear pre-osteoclasts, fusion to multi-nuclear mature osteoclasts, and activation to bone resorbing osteoclasts. The regulation of osteoclastogenesis has been extensively studied, in which the receptor activator of NF-κB ligand (RANKL)-mediated signaling pathway and downstream transcription factors play essential roles. However, less is known about osteoclast fusion, which is a property of mature osteoclasts and is required for osteoclasts to resorb bone. Several proteins that affect cell fusion have been identified. Among them, dritic cell-specific transmembrane protein (DC-STAMP) is directly associated to osteoclast fusion in vivo. Cytokines and factors influence osteoclast fusion through regulation of DC-STAMP. Here we review the recently discovered new factors that regulate osteoclast fusion with specific focus on DC-STAMP. A better understanding of the mechanistic basis of osteoclast fusion will lead to the development of a new therapeutic strategy for bone disorders due to elevated osteoclast bone resorption. Cell-cell fusion is essential for a variety of cellular biological processes. In mammals, there is a limited number of cell types that fuse to form multinucleated cells, such as the fusion of myoblasts for the formation of skeletal muscle and the fusion of cells of the monocyte/macrophage lineage for the formation of multinucleated osteoclasts and giant cells. In most cases, cell-cell fusion is beneficial for cells by enhancing function. Myoblast fusion increases myofiber size and diameter and thereby increases contractile strength. Multinucleated osteoclasts have far more bone resorbing activity than their mono-nuclear counterparts. Multinucleated giant cells are much more efficient in the removal of implanted materials and bacteria due to chronic infection than macrophages. Therefore, they are also called foreign-body giant cells. Cell fusion is a complicated process involving cell migration, chemotaxis, cell-cell recognition and attachment, as well as changes into a fusion-competent status. All of these steps are regulated by multiple factors. In this review, we will discuss osteoclast fusion and regulation.
Characteristics of coronary arteriography and traditional Chinese medicine syndrome of 1 069 patients with coronary artery disease
Jie WANG,Yan-wei XING
Zhong Xi Yi Jie He Xue Bao , 2008,
Abstract: Objective: To study the characteristics of coronary arteriography and traditional Chinese medicine syndrome of 1 069 patients with coronary artery disease (CAD).Methods: One thousand and sixty-nine patients with CAD were investigated by epidemiological method. The patients were divided into young patients (n=82, aged 45 years or younger) and middle-aged and old patients (n=987, older than 45 years). The characteristics of the two groups were analyzed, including clinical data, coronary arteriography and traditional Chinese medicine syndrome.Results: Compared with middle-aged and old patients, proportion of male, triglyceride, total cholesterol, smoking patients, acute myocardial infarction and family history of CAD in young patients were significantly higher (P<0.05). Patients accompanying with hypertension and diabetes in middle-aged and old patients were more than those in young patients (P<0.05). Occurrence rates of morbidity of left circumflex coronary artery, left main coronary artery and multi-branch were higher in middle-aged and old patients (P<0.05), however, the occurrence rates of morbidity of single and doublebranch were higher in young patients (P<0.05). The occurrence rates of syndromes of qi stagnation and phlegm turbidity in young patients were higher than those in middleaged and old patients (P<0.05). But the proportions of cold coagulation, yin deficiency, yang deficiency and kidney deficiency in middle-aged and old patients were obviously higher (P<0.05).Conclusion: The traditional Chinese medicine syndrome and pathological changes of CAD in young patients are different from those in old patients.
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