منابع مشابه
Invisible Obstacles * †
It is proved that one can choose a control function on an arbitrarilly small open subset of the boundary of an obstacle so that the total radiation from this obstacle for a fixed direction of the incident plane wave and for a fixed wave number will be as small as one wishes. The obstacle is called “invisible” in this case.
متن کاملOvercoming Obstacles
Brazilian Journal of Cardiovascular Surgery In times of economic crisis, with the government cutting funds in various sectors, including science and technology, with serious consequences in scientific research and, consequently, the production of good articles, periodicals must learn to reinvent themselves in order to be most read/accessed by attracting more interesting studies. To make matters...
متن کاملManipulating Objects Behind Obstacles
This paper describes various techniques of accessing objects hidden behind obstacles in virtual environments. We show some of well known interaction techniques that are suitable for usage in this case. Next, we introduce new Head Manipulator method and several aids that allow a user to change the visibility of objects. We propose several combinations of interaction techniques and discuss their ...
متن کاملObstacles to continuing education.
An earlier study showed that low attendance at section 63 courses of continuing education was not explained by dissatisfaction with content or methods employed in these programmes. In this enquiry to the same sample of 105 general practitioners, several additional factors were studied related to enjoyment of professional role, practice skills and perceived obstacles to continuing education. Thi...
متن کاملThe hardships and obstacles
F a c u l t y M e n t o r Jerry L. McCullough College of Medicine
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: IEEJ Transactions on Industry Applications
سال: 2017
ISSN: 0913-6339,1348-8163
DOI: 10.1541/ieejias.137.nl4_1