AN ANALYTICAL METHOD FOR SOLVING INTERNAL FORCES AND DEFORMATIONS OF BAR-SYSTEM STRUCTURE IN SPACE

In this paper, based on the idea of finite element method, the initial parametric method in bending, problem of a beam is extended to analyse the bar-system structure by employing Dirac function and llcavisidc step function.Then a new method for analysing the internal forces and deformations of bar-system structure in space is suggested by improving the mixed method in statically indeterminate structure.The inferred process and obtained answer will be more succinct and accurate when the problem of internal forces and deformations of bar-system structure is analysed by using the new method provided in this paper.

OBSERVING THE ENTIRE GLOBE FOR THE GOOD OF THE MANKIND——China takes an Active Part in Activities of the“International Space Year”

The experience of the mankind in studying the planet of our own, is long and the progress is accelerated. From the numerous geographic adventures organized in the past thousand years came only the brief knowledge of the outline of the land and ocean; with the scientific explorations and topographic mapping activities done in the 300-plus years that followed, only about 30% of the land got mapped. But things have been changed greatly since the beginning of the century, when the air planes were put into use for mapping: up to 1950’s, the mapped areas had gone up to 70%; From 1957, a series of resource and environment satellites have been launched one after another,observing the globe, giving coverage of it and providing endlessly varieties of information about the seas and the lands day and night.

Call for Papers International Conference on Space Information Technology

Sponsored by China Academy of Space Technology （ CAST）Co-sponsored by The Second Academy of China Aerospace Science and Industry Corporation

A Study on the Trend of China＇s Space Legislation

The slow progress and lack of fundamental breakthroughs in legislative practices are an important subject for China's space legislation. Oriented by the idea to formulate China's space law as soon as possible, it is necessary to solve five key issues. In the national policy, it is needful not only to implement China's space policy and promote the development of the space industry in depth, but also to advance the deep integration of military and civil application in space field. In terms of legal orientation, three features should be reflected upon, including the functional integration of public and private laws, the balance of regulation by substantive and procedural laws, and the effective coordination of domestic and international laws. To this end, both top-level design and implementation should be paid close attention to in order to achieve significant progress in China's space legislation.

Call for Papers International Conference on Space Information Technology

(November 2009 Beijing, China) STUDY THE TECHNOLOGY OF SPACE INFORMATION EXPLORE THE FUTURE OF HUMAN KINDSponsored by China Academy of Space Technology (CAST) Co-sponsored by The Second Academy of China Aerospace Science and

DEVELOPMENT OF INTERNATIONAL SPACE COOPERATION OF CHINA

Mr. Chairman, distinguished colleagues and guests, ladies and gentlemen, It is a great pleasure, also a privilege for me to address this august body which is a high-level gathering attended by top experts of the world and practitioners with authority in management, operational, business matters in both air and space utilization and their legal aspects. Your presence will undoubtedly increase the brilliance of

Translating current biomedical therapies for long duration,deep space missions

It is been shown that spaceflight-induced molecular,cellular,and physiologic changes cause alterations across many modalities of the human body,including cardiovascular,musculoskeletal,hematological,immunological,ocular,and neurological systems.The Twin Study,a multi-year,multi-omic study of human response to spaceflight,provided detailed and comprehensive molecular and cellular maps of the human response to radiation,microgravity,isolation,and stress.These rich data identified epigenetic,gene expression,inflammatory,and metabolic responses to spaceflight,facilitating a better biomedical roadmap of features that should be monitored and safe-guarded in upcoming missions.Further,by exploring new developments in pre-clinical models and clinical trials,we can begin to design potential cellular interventions for exploration-class missions to Mars and potentially farther.This paper will discuss the overall risks astronauts face during spaceflight,what is currently known about human response to these risks,what pharmaceutical interventions exist for use in space,and which tools of precision medicine and cellular engineering could be applied to aerospace and astronaut medicine.

Temperature Responses to External Heat Fluxes of the Power Distribution System on Alpha Magnetic Spectrometer

High-temperature warnings frequently occurred at the Power Distribution System(PDS)of the Alpha Magnetic Spectrometer(AMS).To investigate the fundamental reasons,a theoretical model for the AMS PDS was established under the International Space Station(ISS)normal and special operating conditions.With the model,the study investigated the external heat fluxes and the temperature responses of the PDS.The effects of ISS special operations on the PDS’s thermal environment were also investigated.Results reveal that the total external heat flux at the PDS reaches its maximum value when the angleβis around–25°,where high-temperature warning frequently occurs.Under the ISS normal operating condition,the temperature response hysteresis at the PDS varies from 116 s to 230 s.When the ISS performed special operations,locking the ISS solar arrays had the greatest influence on the PDS’s external heat fluxes,and the average temperature at the PDS fell by 1.7°C.When the ISS performed multiple special operations,simultaneously locking the ISS solar arrays and adjusting the ISS flight attitude were the most frequent operations,of which the influences on the PDS temperature were the largest,i.e.,the changes in peak temperature reached up to+2.5°C.