scholarly journals Lawrence Berkeley Laboratory 1994 site environmental report

1995 ◽  
Author(s):  
Keyword(s):  
Lawrence Berkeley Laboratory

scholarly journals Up Close: Center for Advanced Materials at Lawrence Berkeley Laboratory

MRS Bulletin ◽  
1986 ◽  
Vol 11 (4) ◽  
pp. 27-27 ◽  
Author(s):  
John J. Gilman
Keyword(s):  
Materials Science ◽  
Magnetic Moments ◽  
National Laboratory ◽  
National Policy ◽  
Chemical Properties ◽  
Educational Process ◽  
University Of California ◽  
Advanced Materials ◽  
Lawrence Berkeley Laboratory ◽  
The University

The boundaries between the present performance of materials and the requirements of device designers have for centuries been moving forward. The steps taken to draw these two together are sometimes large; more often they are small. As they occur, we find materials that are stronger, have larger magnetic moments, have higher electron mobilities, etc. Each time the property profile improves, understanding of the physical and chemical properties advances, and new engineering devices based on the improved profile are invented and developed.The purpose of the Center for Advanced Materials (CAM) at the Lawrence Berkeley Laboratory (LBL) is to enhance the inter-play between advances in the property profiles of materials and advances in the chemical and physical understanding of them. For this purpose, the location of CAM can be described as ideal. The proximity of this national laboratory to the campus of the University of California at Berkeley provides an unusually rich intellectual setting for the Center. It also provides unique opportunities for the University students and faculty who conduct materials-related research. Indeed, the arrangement should be a model for similar organizations, and it represents a solid method for strengthening materials science and technology throughout the nation.National policy in critical materials has given the national laboratories—including LBL—strong direction and incentive to collaborate with industry and the research universities. This incentive led to the establishment of CAM in order to build on the symbiosis between LBL and the University of California at Berkeley. It strives to extend this symbiosis by bringing industry into the ongoing educational process and by making its special facilities more readily available to industrial researchers.

scholarly journals Experience with measuring magnetic moments of permanent magnet blocks at Lawrence Berkeley Laboratory

1988 ◽  
Vol 24 (2) ◽  
pp. 1098-1101 ◽  
Author(s):  
D.H. Nelson ◽  
P.J. Barale ◽  
M.I. Green ◽  
D.A. Van Dyke
Keyword(s):  
Permanent Magnet ◽  
Magnetic Moments ◽  
Lawrence Berkeley Laboratory

Representative Terrestrial Solar Brightness Profiles

2002 ◽  
Vol 124 (2) ◽  
pp. 198-204 ◽  
Author(s):  
Andreas Neumann ◽  
Andreas Witzke ◽  
Scott A. Jones ◽  
Gregor Schmitt
Keyword(s):  
Energy Systems ◽  
Brightness Distribution ◽  
Statistical Weight ◽  
Image Size ◽  
Solar Thermal Energy ◽  
Lawrence Berkeley Laboratory ◽  
Camera System ◽  
Solar Brightness ◽  
Average Profile ◽  
German Aerospace

Solar thermal energy systems often use optical imaging concentrators. The image size and shape produced in the focal plane of the concentrator system depends on the solar brightness distribution. Therefore, the forward scattering of solar radiation by the Earth’s atmosphere modifies the solar brightness distribution and creates a circumsolar aureole. The circumsolar ratio, the energy contained in the solar aureole compared to total energy, can impact the performance of these concentrating systems. Based on about 2300 sunshape measurements from sites in France, Germany, and Spain made with a camera system developed by the German Aerospace Center (DLR), average solar brightness profiles with a circumsolar ratio of about 0%, 5%, 10%, 20%, 30%, and 40% were generated. These profiles are compared to the measurements taken by the Lawrence Berkeley Laboratory (LBL) in the late 1970s and a commonly used limb-darkened solar brightness profile, as known from astronomy. A statistical analysis gives information on the frequency of occurrence of each of the average profiles. The profiles combined with the statistical weight should offer a numerical database for calculating the influence of variable conditions of the sunlight scattering on solar concentrating systems. Furthermore, a single average profile was calculated from the DLR data.

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