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Search Results: 1 - 10 of 28882 matches for " Yuan-yuan Tong "
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The Affection of Independent Innovation on Employment
Guang-rong TONG,Yuan-yuan LIU
Management Science and Engineering , 2009,
Abstract: The paper reviews the theories on the relationship between innovation and employment, and finds that innovation can provide more employment opportunities in the long run and promote the upgrade of employment structure. Then considering the particular situation of China and its present strategic target, we analyze the features of independent innovation, a kind of innovation, and its affection on China’s employment. On this basis, we give some suggestions for government to reduce the impact of independent innovation on employment. Key words: Independent innovation; Employment
Analysis of the status and trends of international research in complementary and alternative medicine based on literature mining
Yuan-yuan Tong,Ying-kai Zhao
Zhong Xi Yi Jie He Xue Bao , 2012,
Abstract: OBJECTIVE: To have an overview of the international status and trends of complementary and alternative medicine (CAM) research, and to provide a reference tool for researchers.METHODS: Taking PubMed as the retrieval source, and using the methods of informetrics analysis (such as Price’s Law of exponential growth, Bradford’s law) and text mining (association rules), CAM articles published between 1998 and 2010 were statistically analyzed on, for example, document growth, core journals and active fields.RESULTS: The literature about CAM research published between 1998 and 2010 showed the trends of exponential growth in quantity. Regional distribution of literature was extensive; China and the United States were the two major sources. Forty-five periodicals were selected from core journals based on Bradford’s law of scattering; some colleges and schools constituted the main force in research on CAM. The active fields mainly focus on (1) acupuncture research; (2) phytotherapy research; (3) mind-body medicine; (4) integrative medicine; (5) treatment and prevention of key conditions such as neoplasm, low back pain, mental disorder and chronic diseases.CONCLUSION: (1) CAM research has attracted attention from all over the world, and it will enter a rapid development stage in the future; (2) Treatment and prevention of neoplasm is a consistent key subject and research field in global CAM research; (3) Elucidating clinical effects, mechanisms of action, and safety of major CAM methods contitutes the most important task; (4) Studies on mind-body medicine have increased in recent years, so clinical evaluation and studies of mind-body interventions should be supported; (5) Research has been done increasingly for identification of the clinical effects and biological mechanisms of CAM interventions in symptom management; (6) Research on CAM will stimulate the development of modern medical model; (7) TCM is an active discipline of CAM, and China will thus face increasing challenges.
Numerical simulations of the mutual effect among the superconducting constituents in a levitation system with translational symmetry
Guang-Tong Ma,Huan Liu,Xing-Tian Li,Han Zhang,Yuan-Yuan Xu
Physics , 2014, DOI: 10.1063/1.4867160
Abstract: By the introduction of a generalized magnetic vector potential, which contains the contributions of both the magnetic and electric parts, and the use of the Ampere's law within the quasistatic approximation as the state equation, the partial differential equations for governing the electromagnetic properties of superconductors as well as the surrounding coolant were established and numerically discretized by resorting to the finite-element technique and finite-difference scheme, respectively, in the spatial and temporal domain. In conjunction with an analytic method to calculate the magnetic field generated by permanent magnet, we compiled a numerical tool for performing an intricate study of the mutual effect among the superconducting constituents in a superconducting levitation system with translational symmetry. Taking a superconducting unit with three constituents inside as a practice, we simulated the electromagnetic responses of this unit while moving in the nonuniform magnetic field generated by permanent magnet guideway and, identified the influences of the mutual effect on the levitation force as well as on the distributions of the magnetic flux density, the supercurrent density, and the levitation force density by comparing to an envisaged reference, one constituent was simulated with all the rest absent to remove the mutual effect. The insights attained by the present study, mostly being inaccessible from the experiments, are aimed to provide useful implications for the design of a superconducting levitation system for the transit and analogous purposes, which usually employ multiple superconductors to achieve the desired capability.
Di-μ-azido-κ4N:N-bis{aqua[bis(1H-benzimidazol-2-ylmethyl)amine]copper(II)} dinitrate
Yuan-yuan Luo
Acta Crystallographica Section E , 2011, DOI: 10.1107/s1600536811045909
Abstract: In the centrosymmetric dinuclear title complex, [Cu2(N3)2(C16H15N5)2(H2O)2](NO3)2, the CuII ion is in a distorted octahedral coordination environment with long axial Cu—Nazide [2.821 (6) ] and Cu—Owater [2.747 (5) ] bonds as a result of the Jahn–Teller effect. Two symmetry-related azide ligands bridge in μ2-modes giving a Cu...Cu distance of 3.533 (2) . In the crystal, N—H...O and O—H...O hydrogen bonds link the components into a three-dimensional network. In addition, there are weak intermolecular C—H...N hydrogen bonds and π–π stacking interactions with centroid–centroid distances ranging from 3.562 (2) to 3.974 (2) .
Yuan-Yuan Liu,Pan Yang
Acta Crystallographica Section E , 2012, DOI: 10.1107/s1600536812032461
Abstract: In the title compound, [Co(NCSe)2(C9H7N7)2(H2O)2], the Co2+ cation is coordinated by two selenocyanate anions, two 2,6-bis(4H-1,2,4-triazol-4-yl)pyridine ligands and two water molecules within a slightly distorted N4O2 octahedron. The asymmetric unit consists of one Co2+ cation, which is located on a center of inversion, as well as one selenocyanate anion, one 2,6-bis(4H-1,2,4-triazol-4-yl)pyridine ligand and one water molecule in general positions. Intermolecular O—H...N hydrogen bonds join the complex molecules into layers parallel to the bc plane. The layers are linked by C—H...N and C—H...Se hydrogen bonds into a three-dimensional supramolecular architecture.
Establishment and Application of Cryptographic Library Model  [PDF]
Tie-Ming Liu, Lie-Hui Jiang, Jing Jing, Yuan-Yuan Zhang
Journal of Computer and Communications (JCC) , 2015, DOI: 10.4236/jcc.2015.35003

When doing reverse analysis of program’s binary codes, it is often to encounter the function of cryptographic library. In order to reduce workload, a cryptographic library model has been designed by analysts. Models use formalized approach to describe the frame of cryptology and the structure of cryptographic function, complete the mapping from cryptographic function property to its architecture, and accomplish the result presentation of data analysis and mapping at last. The model can solve two problems: the first one is to know the hierarchy of the cryptographic function in the library well; the second one is to know some kinds of information, such as related cryptology algorithm and protocol, etc. These function implements can display the result graphically. The model can find relevant knowledge for the analysts automatically and rapidly, which is helpful to the learning of the overall abstract structure of cryptology.

Quantitative study of real-time ultrasonic elastography in the diagnosis of breast lesions

LU Yuan-yuan,LI Jun-lai,LI Li,LU Tong,HAN Zhi-yu,Tang Jie,

中华医学超声杂志(电子版) , 2011,
Abstract: Objective To evaluate the value of Toshiba' s real-time ultrasonic elastography quanti- tative analysis software in the diagnosis of breast solid lesions. Methods The elastograms of breast patients with 68 solid lesions were evaluated using the Toshiba' s ultrasonic elastography quantitative analysis soft- ware. The 68 lesions were diagnosed as benign and malignant by operation and pathology. Receiver operating characteristic (ROC) curves were used to assess the diagnostic value of the elasticity rate of partly and en- tirety rate. Results The areas under the ROC curve (AUC) of the two modalities were 0. 919 (partly) and 0. 853 (entirety) , respectively. The difference between them was significant. When the entirety elasticity rate was 3.48, the sensitiveness was 85.7%. and the specificity was 78.8% ; and the partly elasticity rate was 32.05, the sensitiveness was 97. 1% and the specificity was 81.8%. Conclusion The entirety and partly elasticity rates are helpful for evaluating the tissue rigidity and distribution, meanwhile which are valuable for differentiating benign and malignant breast lesions.
Promotion of Iron Oxide Reduction and Extracellular Electron Transfer in Shewanella oneidensis by DMSO
Yuan-Yuan Cheng, Bing-Bing Li, Dao-Bo Li, Jie-Jie Chen, Wen-Wei Li, Zhong-Hua Tong, Chao Wu, Han-Qing Yu
PLOS ONE , 2013, DOI: 10.1371/journal.pone.0078466
Abstract: The dissimilatory metal reducing bacterium Shewanella oneidensis MR-1, known for its capacity of reducing iron and manganese oxides, has great environmental impacts. The iron oxides reducing process is affected by the coexistence of alternative electron acceptors in the environment, while investigation into it is limited so far. In this work, the impact of dimethyl sulphoxide (DMSO), a ubiquitous chemical in marine environment, on the reduction of hydrous ferric oxide (HFO) by S. oneidensis MR-1 was investigated. Results show that DMSO promoted HFO reduction by both wild type and ΔdmsE, but had no effect on the HFO reduction by ΔdmsB, indicating that such a promotion was dependent on the DMSO respiration. With the DMSO dosing, the levels of extracellular flavins and omcA expression were significantly increased in WT and further increased in ΔdmsE. Bioelectrochemical analysis show that DMSO also promoted the extracellular electron transfer of WT and ΔdmsE. These results demonstrate that DMSO could stimulate the HFO reduction through metabolic and genetic regulation in S. oneidensis MR-1, rather than compete for electrons with HFO. This may provide a potential respiratory pathway to enhance the microbial electron flows for environmental and engineering applications.
A bilingual word alignment method of Vietnamese-Chinese based on deep neural network

莫媛媛, 郭剑毅,余正涛,毛存礼,牛翊童
MO Yuan-yuan
, GUO Jian-yi, YU Zheng-tao, MAO Cun-li, NIU Yi-tong

- , 2016, DOI: 10.6040/j.issn.1671-9352.3.2014.289
Abstract: 摘要: 针对汉-越双语因语言特点差异较大而导致难以实现词语自动对齐的问题,提出了一种基于深层神经网络(deep neural network, DNN)的汉-越双语词语对齐方法。该方法先将汉-越双语词语转化成词向量,作为DNN模型的输入,再通过调整和扩展HMM模型,并融入上下文信息,构建DNN-HMM词语对齐模型。实验以HMM模型和IBM4模型为基础模型,通过大规模的汉-越双语词语对齐任务表明,该方法的准确率、召回率较两个基础模型都有明显的提高,而词语对齐错误率大大降低。
Abstract: It is difficult to achieve auto-alignment between Vietnamese and Chinese, because their syntax and structure are quite different. In this case, we present a novel method for the Vietnamese-Chinese word alignment based on DNN(deep neural network). Firstly, we should convert Vietnamese-Chinese bilingual word into word embedding, and as the input within DNN. Secondly, DNN-HMM word alignment model is constructed by expanding HMM model, which also integrating the context information. The basic model of the experiments are HMM and IBM4. The results of large-scale Vietnamese-Chinese bilingual word alignment task show that this method not only significantly improved its accuracy and recall rate than the two basic models, but also greatly reduced word alignment error rate
Effect of antidepressants on body weight, ethology and tumor growth of human pancreatic carcinoma xenografts in nude mice
Lin Jia, Yuan-Yuan Shang, Yu-Yuan Li
World Journal of Gastroenterology , 2008,
Abstract: AIM: To investigate the effects of mirtazapine and fluoxetine, representatives of the noradrenergic and specific serotonergic antidepressant (NaSSA) and selective serotonin reuptake inhibitor (SSRI) antidepressant respectively, on body weight, ingestive behavior, locomotor activity and tumor growth of human pancreatic carcinoma xenografts in nude mice.METHODS: A subcutaneous xenograft model of human pancreatic cancer cell line SW1990 was established in nude mice. The tumor-bearing mice were randomly divided into mirtazapine group [10 mg/(kg·d)], fluoxetine group [10 mg/(kg·d)] and control group (an equivalent normal saline solution) (7 mice in each group). Doses of all drugs were administered orally, once a day for 42 d. Tumor volume and body weight were measured biweekly. Food intake was recorded once a week. Locomotor activity was detected weekly using an open field test (OFT).RESULTS: Compared to the fluoxetine, mirtazapine significantly increased food intake from d 14 to 42 and attenuated the rate of weight loss from d 28 to 42 (t = 4.38, P < 0.05). Compared to the control group, food intake was significantly suppressed from d 21 to 42 and weight loss was promoted from d 35 to 42 in the fluoxetine group (t = 2.52, P < 0.05). There was a significant difference in body weight of the mice after removal of tumors among the three groups. The body weight of mice was the heaviest (13.66 ± 1.55 g) in the mirtazapine group and the lightest (11.39 ± 1.45 g) in the fluoxetine group (F(2,12) = 11.43, P < 0.01). The behavioral test on d 7 showed that the horizontal and vertical activities were significantly increased in the mirtazapine group compared with the fluoxetine and control groups (F(2,18) = 10.89, P < 0.01). These effects disappeared in the mirtazapine and fluoxetine groups during 2-6 wk. The grooming activity was higher in the mirtazapine group than in the fluoxetine group (10.1 ± 2.1 vs 7.1 ± 1.9 ) (t = 2.40, P < 0.05) in the second week. There was no significant difference in tumor volume and tumor weight of the three groups.CONCLUSION: Mirtazapine and fluoxetine have no effect on the growth of pancreatic tumor. However, mirtazapine can significantly increase food intake and improve nutrition compared with fluoxetine in a pancreatic cancer mouse model.
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