| 1 | The Mathematic Models of the Kalman Filtering for Across-Fault Measurement显示文摘This paper makes a probe into the application of the Kalman filtering method to the data processing of across-fault measurements.On the basis of statistical regression,the mathematic and stochastic models of filtration are established by combining the regression method with Kalman filtering.In the filtering computation,not only the randomness of fault movements but also the time-dependent variation of environmental effects have been taken into consideration.By use of the adaptive filtering method,an estimation of the dynamic noise variance matrix is obtained through iteration.Models for one measuring line(leveling line or baseline),two measuring lines(both leveling lines or both baselines)and four measuring lines(two leveling lines and two baselines)are derived and established systematically.By means of these models,the data of across-fault measurements can be processed dynamically in real-time to provide the filtered values of height difference between benchmarks or baseline length at different time | You Lilan,Liu Dajie,Huang Jia’na,Liu Xue and Zhou KechangInstitute of Crustat Dynamics,SSB,Beijing 100085,China Wuhan Technical University of Surveying and Mapping,Wuhan 430070,China National Center for Seismic Data and Inforraanon,SSB,Beijing 100045,China | 1994 | Earthquake Research in China1994，8，3： | 1 |
| 2 | MIC17A is a novel diagnostic marker for feline toxoplasmosis显示文摘Toxoplasma gondii is a widespread parasitic pathogen that infect humans and all warm-blooded animals,causing abortion and stillbirth in pregnant women and animals,as well as life threatening toxoplasmosis in immune compromised individuals.Felines are the only defnitive hosts of Toxoplasma and oocysts shed by infected felines are the major source of infection for humans and other animals.Given the critical role of felines for T.gondii transmission,control of feline toxoplasmosis has signifcant impacts on reducing the overall prevalence of animal and human toxoplasmosis.However,reliable diagnosis of feline toxoplasmosis is still challenging.In this study,we found that the putative micronemal protein 17A(MIC17A)that was abundantly expressed in Toxoplasma merozoites is a good diagnostic marker for serological diagnosis of Toxoplasma infection in felines.T.gondii encodes four paralogs of MIC17A in total and the expression of three of them is drastically upregulated in merozoites than in tachyzoites.In contrast,when proteins like GRA1 and MIC3 that are more abundantly expressed in tachyzoites than in merozoites were used as diagnostic antigens to test feline toxoplasmosis,they reacted with Toxoplasma specifc IgG antibodies poorly.Taken together,these results suggest that merozoite antigens are better suited for the diagnosis of feline toxoplasmosis than antigens that are highly expressed at tachyzoite or bradyzoite stages. | Jinling Chen Lilan Xue Hongxia Hu Xiaoyan Yin Hui Cao Bang Shen | 2022 | Animal Diseases2022，2，4： | 0 |
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