The cultivation of innovative and entrepreneurial talents is an effective guarantee to meet the strategic needs of national development under the new normal,promote the construction of an innovative country and the de...The cultivation of innovative and entrepreneurial talents is an effective guarantee to meet the strategic needs of national development under the new normal,promote the construction of an innovative country and the development of universities themselves.Combined with the questionnaire survey of colleges and universities in Heilongjiang Province,this paper analyzed factors such as the understanding of the connotation of innovation and entrepreneurship,the thinking and awareness of innovation and entrepreneurship,the demand for training methods of innovation and entrepreneurship,and the approaches to acquire knowledge and capabilities of innovation and entrepreneurship.On this basis,it came up with recommendations for promoting the cultivation of innovative and entrepreneurial talents in colleges and universities,to provide an objective basis for the construction of innovative and entrepreneurial talent training models,so as to promote the effective cultivation of innovative and entrepreneurial talents in colleges and universities.展开更多
The Klobuchar model has been widely used to correct the ionospheric delay in applications. However, the NVTEC(Nighttime Vertical Total Electron Content) of the Klobuchar model employs an empirical constant of 9 TECU(T...The Klobuchar model has been widely used to correct the ionospheric delay in applications. However, the NVTEC(Nighttime Vertical Total Electron Content) of the Klobuchar model employs an empirical constant of 9 TECU(Total Electron Content Unit) at L1 frequency. In this paper, the rationality and reliability of the nighttime constant setting are investigated using the GIM(Global Ionosphere Map) product of the IGS(International GNSS Service) from 1998 to 2015. Our study indicates that the suitable time span of NVTEC average in nighttime should be between 20:00 and 06:00 LT(local time). The NVTEC is highly correlated with seasons, having positive extremes in spring and autumn and negative extremes in summer through the mean values in all latitudes. In addition to seasonal dependence, solar activity in the solar cycle 23 strongly influences NVTEC as well and leads to its variation within a range between 25 and30 TECU in spring and autumn at solar maximum, which is about 1.5 times greater than that in summer and winter. The NVTEC also has a dependence on the latitude at solar maximum, with the mean value from 30 TECU in low latitudinal regions to 15 TECU in high latitudinal regions. Therefore, these results demonstrate that the nighttime VTEC has much greater deviations from the imperial constant in the Klobuchar model, and the newly estimated constant is expected to bring improvement to the predictability of the Klobuchar ionospheric delay model in nighttime.展开更多
With the aging of the social population,community care has become another important care model between home care and institutional care.In order to fully understand the social cognition and demand of"Internet+com...With the aging of the social population,community care has become another important care model between home care and institutional care.In order to fully understand the social cognition and demand of"Internet+community care",the project team conducted a questionnaire survey in accordance with the research objectives.The survey concluded that the public are still dependent on the traditional care,and do not know much about"Internet+community care",but are willing to try."Internet+community care"can not only enrich and innovate the care model,but also effectively solve the problems of limited pension resources and mismatch between supply and demand.It is conducive to promoting the realization of high-quality and efficient services for the aged.展开更多
基金2020 Educational Science Planning Key Project of Heilongjiang Province(GJB1320229).
文摘The cultivation of innovative and entrepreneurial talents is an effective guarantee to meet the strategic needs of national development under the new normal,promote the construction of an innovative country and the development of universities themselves.Combined with the questionnaire survey of colleges and universities in Heilongjiang Province,this paper analyzed factors such as the understanding of the connotation of innovation and entrepreneurship,the thinking and awareness of innovation and entrepreneurship,the demand for training methods of innovation and entrepreneurship,and the approaches to acquire knowledge and capabilities of innovation and entrepreneurship.On this basis,it came up with recommendations for promoting the cultivation of innovative and entrepreneurial talents in colleges and universities,to provide an objective basis for the construction of innovative and entrepreneurial talent training models,so as to promote the effective cultivation of innovative and entrepreneurial talents in colleges and universities.
基金supported by National Key R&D Program of China (2016YFB0501503-3)the key project of National Natural Science Fund (41730108)the National Natural Science Fund (11103068)
文摘The Klobuchar model has been widely used to correct the ionospheric delay in applications. However, the NVTEC(Nighttime Vertical Total Electron Content) of the Klobuchar model employs an empirical constant of 9 TECU(Total Electron Content Unit) at L1 frequency. In this paper, the rationality and reliability of the nighttime constant setting are investigated using the GIM(Global Ionosphere Map) product of the IGS(International GNSS Service) from 1998 to 2015. Our study indicates that the suitable time span of NVTEC average in nighttime should be between 20:00 and 06:00 LT(local time). The NVTEC is highly correlated with seasons, having positive extremes in spring and autumn and negative extremes in summer through the mean values in all latitudes. In addition to seasonal dependence, solar activity in the solar cycle 23 strongly influences NVTEC as well and leads to its variation within a range between 25 and30 TECU in spring and autumn at solar maximum, which is about 1.5 times greater than that in summer and winter. The NVTEC also has a dependence on the latitude at solar maximum, with the mean value from 30 TECU in low latitudinal regions to 15 TECU in high latitudinal regions. Therefore, these results demonstrate that the nighttime VTEC has much greater deviations from the imperial constant in the Klobuchar model, and the newly estimated constant is expected to bring improvement to the predictability of the Klobuchar ionospheric delay model in nighttime.
基金Phased Research Results of the Innovation and Entrepreneurship Training Program for College Students in Heilongjiang Province(201910223077).
文摘With the aging of the social population,community care has become another important care model between home care and institutional care.In order to fully understand the social cognition and demand of"Internet+community care",the project team conducted a questionnaire survey in accordance with the research objectives.The survey concluded that the public are still dependent on the traditional care,and do not know much about"Internet+community care",but are willing to try."Internet+community care"can not only enrich and innovate the care model,but also effectively solve the problems of limited pension resources and mismatch between supply and demand.It is conducive to promoting the realization of high-quality and efficient services for the aged.