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Functions of retired GEO communication satellites in improving the PDOP value of CAPS

Science China(Physics,Mechanics & Astronomy) 2009年第3期52卷 423-433页

作者： HAN YanBen MA LiHua QIAO QiYuan YIN ZhiQiang SHI HuLi AI GuoXiang National Astronomical Observatories Chinese Academy of SciencesBeijing 100012China

This paper briefly introduces the maneuverable feature of the slightly inclined geosynchronous orbit (SIGSO) satellites under a new control model degraded from the geosynchronous orbit (GEO) communication satellites which will retire as most of the fuel in these satellites has been consumed. Basing on the transmitting Chinese Area Positioning System (CAPS), the authors, by analyses, indicate that such satellites can make an improvement to CAPS constellation configuration, especially to the PDOP value from simulation. The results show that the use of SIGSO satellites can (1) actualize three-dimensional (3D) navigation and positioning compared with the situation, which, only using GEO satellites, cannot be carried out, and improve navigation and positioning accuracy to some extent; (2) reuse the communication services of these satellites for more years, and GEO communication satellites will be retired at a later time and delay their time to become space debris and reduce their pollution of the space environment, so that valuable space resources are maximally used. As for the use of these satellites in the transmitting positioning system, the authors present some views and suggestions in this work.

关键词： satellite navigation and positioning GEO communication satellite retired satellite CAPS

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Multi-life cycles utilization of retired satellites

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Science China(Physics,Mechanics & Astronomy) 2009年第3期52卷 323-327页

作者： SHI HuLi AI GuoXiang HAN YanBen MA LiHua CHEN JiBin GENG JianPing National Astronomical Observatories Chinese Academy of SciencesBeijing 100012China

retired geosynchronous (GEO) communication satellites affect the GEO orbit environment in outer space. According to the new concept of modern design, the authors propose creatively a method of reusing retired GEO communication satellites, through adjusting retired GEO satellites to slightly inclined orbit geosynchronous (SIGSO) satellites. After these retired satellites are applied to the navigation and communication system, integrity of navigation system and positioning accuracy of the system is improved. Meanwhile, some transponders on these retired satellites can be used to establish a new satellite communication service, and initiate the study and utilization of the multi-life cycle for retired satellites. Experimental results show that this project has significant social value and can make remarkable economic benefit.

关键词： retired satellite multi-life cycles navigation positioning precision integrity

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Utilization of retired physicians as nursing faculty

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Open Journal of Nursing 2013年第7期3卷 481-484页

作者： Patricia L. Starck Shelly Liss Gerda Gomez Michael E. Speer Department of Physical Medicine & Rehabilitation Baylor College of Medicine Houston USA Departments of Pediatrics & Ethics Baylor College of Medicine Houston USA The University of Texas Health Science Center-Houston School of Nursing Hou-ston USA

The nation’s nursing shortage is predicted to worsen, as nurses retire (supply) and more patients have access to care with the full enactment of the Affordable Care Act (demand). Schools of nursing are under continuing pressure to increase enrollment in entry level nursing programs [1-4]. Nurse educators have been engaged in a variety of creative and innovative projects to increase enrollment with some success. A primary reason for the lack of educational capacity is the shortage of nursing faculty [3-7]. The University of Texas Health Science Center-Houston School of Nursing undertook an innovative project to alleviate the nursing faculty shortage at that school. Working with a retired physician group, physician volunteers were solicited to teach in the laboratory portion of an undergraduate health assessment course. Twenty-two physicians volunteered in the first year in a class that involved forty baccalaureate students in their first-semester. The objectives of the project were twofold: First, to determine the suitability of retired physicians to serve as teachers of baccalaureate nursing students and second, ascertain possible monetary savings by using these physicians. Both of these goals were realized. The students valued the physicians’ enthusiasm, wisdom and experience and the cohort of physicians equaled the equivalent of four nursing faculty members. With an average annual faculty salary of $100,000, savings were significant.

关键词： retired Physicians Supply and Demand Nursing Faculty Shortage

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retired Player 高品人生

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当代体育（扣篮） 2017年第1期 88-91页

作者：古文狂

NBA球员退役后,如何刷出自己的存在感？肯尼·托马斯在萨克拉门托开了家餐馆,科利斯·威廉姆森正打算成为一名篮球主教练……不,这不是我们需要的答案。这些NBA球员在多年职业生涯中,建立起了丰厚的名人效应,并利用这一优势,在社会层面... 详细信息

NBA球员退役后,如何刷出自己的存在感？肯尼·托马斯在萨克拉门托开了家餐馆,科利斯·威廉姆森正打算成为一名篮球主教练……不,这不是我们需要的答案。这些NBA球员在多年职业生涯中,建立起了丰厚的名人效应,并利用这一优势,在社会层面发挥更大的作用。或者,他们本身就是社会的一部分,使命召唤他们拥有高品人生。

关键词：科利斯威廉姆森黑色圣诞 retired Player 托马斯萨克存在感赫伦黑胡子肯尼

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Preliminary Investigation of the Interest Education of retired College Teachers under Lifelong Education

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Journal of Educational Theory and Management 2017年第1期1卷 24-27页

作者： Shanshan Chang Nanjing Normal University Nanjing Jiangsu210000China

China has a large base of aging population, and its speed entering the aging society and the growth rate are higher than the average level of the world;however, China's awareness and actions against the population aging are relatively backward. Aging education is an important part of lifelong education;more importantly, it is an important manifestation of education to deal with the aging society. The interest education of retired college teachers is an important component of the aging education and lifelong education;laying a solid foundation for the interest education of retired college teachers would make great contributions to China's aging education. Helping the retired college teachers to realize second advancement and promotion of their enterprises, as well as realizing self-values via the guiding method of interest education is an essential way under the scientific outlook on development. The realization of the interest education of retired college teachers lies in three steps;i.e. intensifying college teachers' acknowledgement of the interest education, building and perfecting the interest education institutions for the college teachers, as well as conducting the interest education of the retired college teachers.

关键词： Lifelong education retired college teachers Interest education

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