U.S. Participation in the XXIInd General Assembly of the International Union of Radio Science

射电科学是一门跨学科的学科，包括许多不同领域的基础和应用研究，如射电天文学、大气研究和电信。这方面的研究大部分都是国际性的，主要是因为无线电波不受国界限制，可以传播极远的距离。无线电科学的国际性导致了1919年国际无线电科学联合会（通常称为URSI）的成立。无线电科学研究所的目标是：1)促进无线电通信的科学研究；（二）协助和组织国际范围的无线电研究，鼓励研究成果的讨论和发表；3)促进计量和计量器具的标准化；4)促进和协调电信科学方面的研究。URSI通过三年一次的大会来实现它的许多目标。会议记录广泛公开分发，受众广泛。美国充分参与联合国大会显然是可取的。因此，我建议国家科学基金会向国家科学院颁发一笔旅行补助金，以确保合格的美国研究人员参加将于1987年8月24日至9月2日在以色列特拉维夫举行的第21届大会。

Radio Science is a cross disciplinary endeavour, encompassing basic and applied research in many diverse areas, such as radioastronomy, atmospheric research and telecommunications. Much of this research is international in character, due largely to the fact that radio waves do not stop at national boundaries and propagate over extremely long distances. The international character of radio science led to the foundation of the International Union of Radio Science (commonly designated as URSI) in 1919. The aims of URSI are: 1) to promote the scientific study of radio communications; 2) to aid and organize radio research on an international scale and to encourage discussion and publication of the results; 3) to facilitate the standardization of measurements and measuring instruments; and 4) to stimulate and coordinate the study of the scientific aspects of telecommunications. URSI accomplishes many of its objectives through a triennial General Assembly. Proceedings of this meeting are widely and openly distributed and reach a broad audience. Adequate U.S. participation in the General Assembly is clearly desirable. Consequently, I recommend that the National Science Foundation award a Travel Grant to the National Academy of Sciences to ensure the participation of qualified U.S. researchers at the XXIInd General Assembly to be held in Tel Aviv, Israel, August 24-September 2, 1987.