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In the last 25 years Israel developed highly advanced space industry and capable indigenous infrastructure of space technology. The special interconnections between the academia, the industry and different government agencies had a valuable influence on this successful process. This paper identifies and analyzes the characteristics of this partnership. It addresses the issue of sustaining this partnership and maintain it as a major driving force of the Israeli space program in order to provide some conclusions for similar actors, seeking to enhance their space activities and capabilities. 相似文献
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In the wake of its transition to a market economy and the political and social reforms that have accompanied this, Kazakhstan—home to the renowned Baikonur space complex—is experiencing greater demand for space services. This article reports on the drivers behind and main features of the country's current space program and analyzes Kazakahstan's space policy. Key priorities are capacity building, maximizing revenue from the lease of Baikonur, international cooperation, in particular with Russia, as a means of gaining know-how and entering the world space industry, developing Earth observations and broadcasting expertise, and placing the country's activities within a legal framework. 相似文献
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As one of the three former Soviet republics engaged in space activities, the Ukraine has had to formulate new national space legislation as a means of demonstrating a responsible attitude to the international security system, of harmonising its legislation with that of its international political and economic partners and of creating clear guidelines for investors. This article presents the background to the formation of Ukrainian space law, describes some of the new laws enacted and discusses these within the context of international space law. Particular attention is paid to the legal regulation of commercial activities, to dual-use issues and to the effect of international cooperation on Ukrainian space law development. 相似文献
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New, innovative joint safety policies and requirements were developed in support of the Shuttle/Mir program, which is the first phase of the International Space Station program. This work has resulted in a joint multinational analysis culminating in joint certification for mission readiness. For these planning and development efforts, each nation's risk programs and individual safety practices had to be integrated into a comprehensive and compatible system that reflects the joint nature of the endeavor. This paper highlights the major incremental steps involved in planning and program integration during development of the Shuttle/Mir program. It traces the transition from early development to operational status and highlights the valuable lessons learned that apply to the International Space Station program (Phase 2). Also examined are external and extraneous factors that affected mission operations and the corresponding solutions to ensure safe and effective Shuttle/Mir missions. 相似文献
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US Office of Technology Assessment 《Space Policy》1995,11(4):283-287
Below is a summary of what was to be the first in a series of reports produced by the Office of Technology Assessment (now defunct) on policy for the USA's future space transportation technology and industrial base. It examines the Clinton Administration's 1994 National Space Transportation Policy and supporting implementation plans and raises and analyses such issues as conflicts and redundancies within NASA and DoD space transportation development programs; competition and cooperation with foreign launch vehicle and component providers; US government limits on the conversion of long-range missiles to space launchers in the face of Russian activity in this area; and the effectiveness of Administration efforts to include the private sector in space transportation decision making. Some issues not covered in the Policy are also discussed. 相似文献
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This article examines recent difficulties in the Russian space program through the analytic lens of the Russian political and economic reform effort. It argues that Russia’s problems go beyond a lack of financing. Instead, lack of investment and ‘brain drain’ have caused deep infrastructural problems which would take years of restored funding and political priority to fix. Russia’s continued activity in space stems almost solely from inertia left over from the Soviet period, and from funding provided by foreign partners anxious to exploit the cheap, sturdy elements of that Soviet legacy. 相似文献
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Tardigrades as a potential model organism in space research 总被引:1,自引:0,他引:1
Jönsson KI 《Astrobiology》2007,7(5):757-766
Exposure of living organisms to open space requires a high level of tolerance to desiccation, cold, and radiation. Among animals, only anhydrobiotic species can fulfill these requirements. The invertebrate phylum Tardigrada includes many anhydrobiotic species, which are adapted to survive in very dry or cold environmental conditions. As a likely by-product of the adaptations for desiccation and freezing, tardigrades also show a very high tolerance to a number of other, unnatural conditions, including exposure to ionizing radiation. This makes tardigrades an interesting candidate for experimental exposure to open space. This paper reviews the tolerances that make tardigrades suitable for astrobiological studies and the reported radiation tolerance in other anhydrobiotic animals. Several studies have shown that tardigrades can survive gamma-irradiation well above 1 kilogray, and desiccated and hydrated (active) tardigrades respond similarly to irradiation. Thus, tolerance is not restricted to the dry anhydrobiotic state, and I discuss the possible involvement of an efficient, but yet undocumented, mechanism for DNA repair. Other anhydrobiotic animals (Artemia, Polypedium), when dessicated, show a higher tolerance to gamma-irradiation than hydrated animals, possibly due to the presence of high levels of the protective disaccharide trehalose in the dry state. Tardigrades and other anhydrobiotic animals provide a unique opportunity to study the effects of space exposure on metabolically inactive but vital metazoans. 相似文献
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Roman Krawec 《Space Policy》1995,11(2)
Following Ukraine's 1991 declaration of independence and the disintegration of the USSR, Ukraine inherited a third of the Soviet Union's space industry. This paper presents an overview of the main features of Ukraine's current policy on the exploitation of this capability as a factor in the transformation of its economy. It illustrates how the policy is being realized in the areas of launch systems, Earth observation, satellite communications and international relations, and concludes that Ukraine's strengths in the space field are counterbalanced by obstacles which must be faced, both within the country and externally. 相似文献
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Work-rest schedules during long duration space missions involve several factors which could disrupt sleep and circadian temporal organisation: (1) displacement of sleep due to two-shift operations; (2) planned or unplanned schedule changes due to operational requirements; (3) social and light Zeitgebers different from those on earth; (4) changes in the gravitational exposure. Timed bright light treatment has the potential to accelerating adaptation to schedule changes. Four male subjects were exposed to two sessions of 11 d of simulated microgravity (6 ° head down tilt bedrest) with 6-h extensions of the wake period on 2 days (12-h phase delay). In a blind crossover design, subjects were exposed to bright light (> 3500 lux) for 5 h on each of the 2 shift days and the following day, at times either expected to accelerate the adjustment to the phase delay (experimental condition) or to have no phase shifting effect (control condition). Sleep was recorded polygraphically, the circadian system was monitored by recordings of heart rate and body temperature, and by collection of urine (electrolyte and hormone excretion). Only the rhythms of 6-hydroxymelatoninsulphate and potassium excretions showed significantly enhanced adjustment under the experimental condition. Different rhythms Actapted to the 12-h delay at different rates, comparable to those observed after time zone shifts. Sleep was shorter in simulated weightlessness than in normal ambulatory age-matched subjects, consistent with the shorter sleep durations characteristic of space flight. These results confirm the disruptive effects of wake-rest schedule shifts on sleep and circadian rhythms. Contrary to our initial hypothesis, 5-h exposures to bright light finishing at the time of the circadian temperature minimum were not more effective at accelerating adjustment to a 12-h schedule delay than exposures coinciding with the temperature maximum. We conclude that, while bright light may accelerate adjustment to work-rest schedule delays, any such effect seems to be largely independent from the timing of the light exposure. 相似文献
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Li Chengzhi 《Space Policy》2011,27(3):157-164
Using the US-coined concept of space industrialization and reflecting the ongoing creation of a space economy, this paper maintains that China’s 20-odd years of practice and achievement in crop breeding in space should be seen as an integral part of any space economy. The paper analyzes the Chinese government’s space breeding policies, its support for it via financial allocation, and the relevant programs, and highlights the key achievements so far achieved in the sector. In conclusion, it outlines the main hurdles to crop breeding in space but looks forward to a bright future for this activity. 相似文献
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This new multi-disciplinary medical experimentation center provides the ideal scientific, medical and technical environment required for research programs and to prepare international space station Alpha (ISSA) missions, where space and healthcare industries can share their expertise. Different models are available to simulate space flight effects (bed-rest, confinement,...). This is of particular interest for research in Human psychology, physiology, physiopathology and ergonomics, validation of biomedical materials and procedures, testing of drugs, and other healthcare related products. This clinical research facility (CRF) provides valuable services in various fields of Human research requiring healthy volunteers. CRF is widely accessible to national and international, scientific, medical and industrial organisations. Furthermore, users have at their disposal the multi-disciplinary skills of MEDES staff and all MEDES partners on a single site. 相似文献
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The Microgravity Research Program (MRP) participated aggressively in Phase 1 of the International Space Station Program using the Russian Mir Space Station. The Mir Station offered an otherwise unavailable opportunity to explore the advantages and challenges of long duration microgravity space research. Payloads with both National Aeronautics and Space Agency (NASA) and commercial backing were included as well as cooperative research with the Canadian Space Agency (CSA). From this experience, much was learned about long-duration on-orbit science utilization and developing new working relationships with our Russian partner to promote efficient planning, operations, and integration to solve complexities associated with a multiple partner program.
This paper focuses on the microgravity research conducted onboard the Mir space station. It includes the Program preparation and planning necessary to support this type of cross increment research experience; the payloads which were flown; and summaries of significant microgravity science findings. 相似文献
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In 1996, the National Research Council's Committee on Risk Characterization argued convincingly for the implementation of more participatory approaches to improve policy making by incorporating a wide range of stakeholder values and concerns in policy decisions. Guidance about how to best carry out such an approach in an agency like NASA is less clear. To address this gap, this paper discusses how the use of a structured approach to involve expert and non-expert stakeholders in policy making can improve the quality of stakeholder involvement and resulting decisions for space policy making at NASA. Supporting this discussion are results from two recent experiments. One compared the quality and type of participants’ input in a conventional stakeholder workshop with that of a more structured participatory process. The results from this experiment showed that a structured decision approach leads to more thoughtful and better-informed decisions. A second experiment showed that structured, participatory decision processes can help to legitimize space policy decisions after they have been implemented, leading to future benefits for the space agency. 相似文献
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Laura M. Delgado 《Space Policy》2011,27(2):94-98
A pressing issue facing the US space program is the projected shortfall in the skilled aerospace workforce, as the number of students in space-related fields wanes. This has prompted many to emphasize the rhetoric of inspiration that prevailed during the Cold War, at the expense of concrete arguments for space that are thought to be lackluster and insufficient. This essay argues that the logic of inspiration fails to consider the changed context and attitudes of this younger public. Instead, such an approach proves counterproductive in attracting generations compelled by a host of ideas, some incompatible with the rhetoric of competition and prestige that prevailed before. Arguments that draw attention to the pragmatic elements of space, and that successfully align space with the notions that make sense now, may in turn prove to be the solution to draw the best and the brightest to the space program. 相似文献
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Those in the space community interested in deploying space solar power (SSP) need to know whether it would make economic sense. This article aims to develop a conceptual model of the economic value of SSP as a source of power to in-space activities, such as spacecraft and space stations. We offer several estimates of the value based on interviews and published data, discuss technological innovations that may compete with or be complementary to SSP, and consider alternative institutional arrangements for government and the private sector to provide SSP. 相似文献
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The lack of a legal boundary between air space and outer space has not given rise to significant difficulties in the determination of applicable law with respect to traditional flight craft – aircraft and space objects, due to their separated sphere of activities. But the advent of new flight craft that are capable of operating in the intermediate “near space”, i.e. Near Space Vehicles, would render a clarification of their applicable law and the legal status of the zone requisite. For the purpose of balancing the right of exploration and use of near space and the security interest of subjacent States, this short note proposes a tri-layer approach of delimitation by which near space is established as a sui generis zone reserved exclusively for peaceful purposes, while the space below the upper operative limit of aircraft and that above the lower operative limit of space craft are air space and outer space respectively. 相似文献
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Eurospace 《Space Policy》1991,7(4):300-306
This article argues that growing space activities are essential to maintain European high-technology ambitions. The approval of ESA's future programme at the ministers' meeting in late 1991 is regarded as an absolute minimum and the adoption of a collective European space policy setting European autonomy, international cooperation, competitiveness and equitable market conditions is urgently required. The article further argues that a power structure to define, adopt and update such a policy and monitor its implementation must be established. It should be based on ESA, with other organizations concerned with space playing advisory roles. 相似文献