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| 1 | A new method for detecting line spectrum of ship-radiated noise using Duffing oscillator显示文摘A detection scheme for line spectrum of ship-radiated noise is proposed using Duffing oscillator. The chaotic trajectory of Duffing oscillator is analyzed and the state equation of the system is improved to detect weak periodic signals in different frequencies. According to the simulation results, the phase transforms of Duffing oscillator are sensitive to periodic signals and immune to the random noise and the periodic interference signals which have larger angular frequency difference from the referential signal. By employing Lyapunov exponents in the field of detection as the criteria for chaos, the phase transforms of dynamic behaviors in quantity are successfully determined. Meanwhile, the threshold value in critical state has been evaluated more accurately. Based on the phase transforms of Duffing oscillator, a new method for detecting line spectrum of ship-radiated noise is given. Three types of ship-radiated noise signals are analyzed and the values of line spectrum are acquired successfully by this method. The experimental results show that this method has high sensitivity and high resolution. | ZHENG SiYi GUO HongXia LI YaAn WANG BingHe ZHANG PengYi | 2007 | Chinese Science Bulletin2007，52，14： | 21 |
| 2 | Normal blood D-dimer concentrations: do they exclude pulmonary embolism?显示文摘 | Guo Zhiguo Ma Qingbian Zheng Yaan Zhang Yumei Ge Hongxia | 2014 | Chinese Medical Journal2014，，1： | 9 |
| 3 | Pathogenic and pathological characteristic of new type gosling viral enteritis first observed in China显示文摘AIM To study the purifying method and characteristics of neW gosling viral enteritis virus (NGVEV), the etiological agent of new gosling viral enteritis (NGVE) which was first recognized in China, as well as the pathomorphological davelapment in goslings infected artificially with NGVEV.``of treatment with chloroform and ammonium sulfate precipitation, dialysis to remove the sulfate radical and ammonium ion and separation by gel filtration Sichuan goslings were orally administered with NGVEV and 24hr later 2 birds were randomly selected and killed at 24hr intervals Until death occurred. Specimens(duodenum, ileum,liver, heart, kidney, spleen, lung, proventriculus, pancreas,esophagus, and the intestinal embolus) were taken until all birds in this group died and were sectioned and stained with hemotoxylin and ensin and studied by light microscope.``RESULTS NGVEV shared the typical characteristics of Adenovirus and which structural proteins consisted of 15polypsptides. Necrosis and sloughing of the epithelial cells covering the villus tips of the duodanum were first observed in goslings 2 days postinfectien artificially with NGVEV. With the progress of infection, this lesion rapidly occurred in the epithelium at the base of the villus and with infiltration of the inflammatory cells, the jejunum tended to be involved. With the intensification of rnucnsa necrosis and inflammatory exudation of the small intestine, fibrinenecrotic enteritis was further developed and embolus composed of either intestinal contents wrapped by pseudomembrane or of the mixture of fibrous exudate and necrotic intestinal rnucoes were observed in the middle-lower part of the small intestine. This structure occluded the intestinal tract and made the intestine dilated in appearance. The intestinal glandular cells underwent degeneration, necrosis and might be found sloughed into the lumen. Hemorrhage and hyperemia could be observed on the lung and kidney . Epithelial cells of the renal tubular underwent degeneration. In some cases, granular degeneration and fatty degeneration could be found in the liver and in some cases at a later stage of this disease the epithelial ceils of trachea and proventriculus might be found sioughed. In some cases at an early stage of this disease,cardiac hyperemia and hemorrhage could be observed.Esophaagus, pancreas and brain were found normal. Analysesand comparisons between the pathologic lesions of GVE and Gosling Plague (GP) were available in this paper as well.``characteristic could be as the data for NGVE diagnosis. | An-Chun Cheng Ming-Shu Wang Xiao-Yue Chen Yu-Fei Guo Zhao-Yu Liu Peng-Fei Fang College of Animal Science and Veterinary Medicine,Sichuan Agricultural University,Xinkang Road,Yaan City 625014,Sichuan Province,China | 2001 | World Journal of Gastroenterology2001，7，5： | 4 |
| 4 | Operation Risk of Rural Cooperative Economic Organization Based on Principal Component Analysis——A Case of Sichuan Province,China显示文摘Based on the previous research,a total of 10 risk indices are selected according to the specific situation in Sichuan Province,such as natural risk,resource constraint risk,internal management risk,capital risk,technical input and output risk,market risk,contract credit risk,property risk and policy support risk.According to the questionnaire survey by cooperative economic organization of Sichuan Province,principal component analysis is used to analyze the importance and influence degree of the operation risk of rural cooperative economic organization.Result shows that in the operation of cooperative economic organization,management risk has greater influence degree and importance degree,which should be paid special attention to.Capital,property,price fluctuation,and quality of members have great degree of risk and are paid little attention to.The technical input and output risk and the contract credit risk have relatively low impact on the operation risk of cooperative economic organization and their importance is relatively low.Therefore,we should continue to maintain its advantages.Nature,resource constraint and policy support have relatively high risk awareness and low influence degree,belonging to the factors with priority attention which are controlled to some extent.Finally,suggestions are put forward,such as enhancing the management level of cooperative economic organizations,strengthening the farmer's risk awareness,and improving the risk aversion ability of cooperative economic organization. | JIA Xian-wei,FENG Ling School of Economics and Management,Sichuan Agricultural University,Yaan 625014,China | 2010 | Asian Agricultural Research2010，2，3： | 3 |
| 5 | Effects of humic acid and surfactants on the aggregation kinetics of manganese dioxide colloids显示文摘普通的锰二氧化物的聚集(MnO < 潜水艇 class= “ a-plus-plus ” > 2 ) 胶体在他们的表面反应上并且因此在他们的命运以及联系天赋和合成沾染物上有大影响在设计(例如水处理) 并且自然水的环境。不过,很少对 MnO 的聚集动力学被知道 < 潜水艇 class= “ a-plus-plus ” > 2 胶体和腐殖的酸的效果(哈) 并且这些上的表面活化剂。在这研究, MnO 的早阶段聚集动力学<潜水艇class=“ a-plus-plus ”>在 NaNO 的 2 nanoparticles <潜水艇class=“ a-plus-plus ”> 3 和 Ca (没有<潜水艇class=“ a-plus-plus ”> 3 ) 2 个答案面对哈并且表面活化剂(即,钠 dodecyl 硫酸盐( SDS ),和 polyvinylpyrrolidone ( PVP ))通过散布的解决时间的动态光被建模。面对哈, MnO < 潜水艇 class= “ a-plus-plus ” > 2 胶体显著地与 300 mmol 的批评凝结集中(CCC ) | Xiaoliu HUANGFU Yaan WANG Yongze LIU Xixin LU Xiang ZHANG Haijun CHENG Jin JIANG Jun MA | 2015 | Frontiers of Environmental Science & Engineering2015，9，1： | 2 |
| 6 | Enhanced electrochromism of WO3 thin film by gold nanoparticles 显示文摘 | Tao He Ying Ma Yaan Cao | 2001 | Journal of Electroanalytical Chemistry2001，514，： | 1 |
| 7 | Severe liver disease in pregnancy显示文摘 | Chen H Yaan L Tan J | 2008 | Int J Gynecol Obstet2008，01，27： | 1 |
| 8 | Electrophysiologic effect of enalapril on guinea pig papillary mescles in vitro显示文摘 | Liu B Hu DY Yaan G | 1997 | Acta Pharmacol Sina1997，18，： | 1 |
| 9 | Great enhancement of photocatalytic activity of nitrogen-doped titania by coupling with tungsten oxide 显示文摘 | Gao Bifen Ma Ying Cao Yaan | 2006 | Journal of Physical Chemistry B2006，110，14： | 1 |
| 10 | Analysis and design of the integrated controller for pricise motion system显示文摘 | YAAN S S HSU P L | 1999 | IEEE Transaction on Control Systems Technology1999，7，6： | 1 |
| 11 | High-volume optical vor- tex multiplexing and de-multiplexing for free-space optical communication 显示文摘 | Wang Z X Zhang N Yaan X C | 2011 | Optics Express2011，19，2： | 1 |
| 12 | Image completion with structure propagation显示文摘 | Sun J Yaan L Jia J | 2005 | ACM Transactions on Graphic2005，24，3： | 1 |
| 13 | Inhibition of reactive oxygen species/extracellular signal-regulated kinases pathway by pioglitazone attenuates advanced glycation end products-induced proliferation of vascular smooth muscle cells in rats显示文摘 | Yaan X Zhang g Gong K | 2011 | Biol Pharm Bull2011，34，5： | 1 |
| 14 | Characterization of sinoatrial parasympathetic innervation in humans 显示文摘 | Yaan KJ Lee JH Geha AS | 1999 | J Cardiovasc Electrophysiology1999，10，8： | 1 |
| 15 | Amino Acids Analysis in Different Antigens and Relationship with Immunoreactivity in Cysticercus cellulosae显示文摘The six antigens of Cysticercus cellulosae: CFag, CSag, CBWag, CWag, UCWag and TSag were prepared respectively. The amino acids of the antigens were determined quantitative by automatic amino acid analyzer. The relationship of original reaction was confirmed between amino acids and antigens. The results showed that there were 17 amino acids among all of the antigens. There were no significant difference (P >0.05) of Asp, Glu, Lys, His in composition of all antigens by data analysis software SPSS. There are also no significant difference ( P > 0.05) in the composition of all amino acids between CSag and CBWag. The composition of Thr, Ser, Tyr, Ved, Pro in UCWag shows significant difference (P < 0.05) with other antigens.The sensitivity and peculiarity of UCWag are higher than that of the others. Pro and Glu show significant linear correspondence with sensitivity and peculiarity of antigens respectively. | CAO Yi, QIAO Dai-rong, JIANG Yan and YANG Tao( National Laboratory for Grassland Biotechnology, Sichuan University, Chengdu 610065, P.R.China Sichuan Agricultural University, Yaan 625014 , P. R . China Kaiya Biotechnology Corporation of Sichuan University, Chengdu 610064, P.R.China) | 2002 | Agricultural Sciences in China2002，1，8： | 1 |
| 16 | Enhanced visible-light coloration and its mechanism of MoO 3 thin films by Au nanoparticles显示文摘 | Tao He Ying Ma Yaan Cao Yanhua Yin Wensheng Yang Jiannian Yao | 2001 | Applied Surface Science2001，，： | 1 |
| 17 | From the People of the United States of America: The Books for China Programs during World War II显示文摘 | Yaan Zhou Calvin Elliker | 1997 | Library & Culture1997，32，2： | 1 |
| 18 | Relationship of the Interests between the Dairy Farmer and the Company in Ecological Agriculture——A Case of the Dairy Industry in Sichuan Province,China显示文摘Development status of dairy industry in Sichuan Province,China is analyzed,indicating that how to ensure the high-quality and ecological production of peasant households has become an important issue for the safety and healthy of the masses and the development of dairy industry.Game model is established and the solution for the model is obtained.Based on analyzing the relationship of the interests between the dairy farmer and the company in ecological agriculture,two mixed strategies of Nash equilibrium are obtained.One is that when the probability is equal to α*1,there are no differences between purchasing or not purchasing;if the probability of company purchase is equal to β*1,there are no differences between producing high-quality milk and poor-quality milk.The other is that if the probability of dairy farmer under normal transaction is equal to α*2,there are no differences for the company to select high-quality inspection or low-quality inspection;if the probability of high-quality inspection is equal to β*2,passing off inferior milk as high-grade one has no differences with normal transaction.Therefore,moral risk of the dairy farmer should be prevented by probability β*1 and high-quality inspection.Finally,countermeasures are put forward,such as reducing the risk of transaction,ensuring the basic interest of the dairy farmer engaged in ecological production,intensifying the supervision,correctly preventing the moral risk of dairy farmer,improving the laws and regulations,and coordinating interests between dairy farmer and company in industrial chain. | CHEN Jia-wei,QI Yan-bin College of Economics and Management,Sichuan Agricultural University,Yaan 625014,China | 2010 | Asian Agricultural Research2010，2，8： | 1 |
| 19 | Inhibition of human T cell leukemia virus by the plant flavonoid baicalin(7-glucuronic acid,5,6-dihydroxyflavone)显示文摘 | BAYLOR N W FU T YAAN Y D | 1992 | J Infect Dis1992，165，3： | 1 |
| 20 | Axin and Fratl interact with dvl and GSK, bridging Dvl to GSK in Wnt - mediated regulation of LEF - 1 显示文摘 | Li L Yaan H Weaver C D | 1999 | EMBO J1999，18，15： | 1 |
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