Method and apparatus for fabricating improved solar cell modules

A method and apparatus for fabricating an improved solar cell module is described. The apparatus includes a supply drum for feeding a flexible strip having etched electrical circuitry deposited on it a supply drum for feeding into overlying engagement with the flexible strip a flexible tape having a pair of exposed tacky surfaces, and a plurality of rams for receiving and depositing a plurality of solar cells in side-by-side relation on an exposed tacky surface of the tape in electrical contacting engagement with the etched circuitry

Some Observations on the Progress of Psychiatry

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Supporting the active learning of collaborative database browsing techniques

We describe the implications of a study of database browsing behaviour for the development of a system to support more effective browsing. In particular we consider the importance of collaborative working, both in learning browsing skills and in co‐operating on a shared information‐retrieval task. From our study, we believe that an interface to support collaboration should promote the awareness of the activities of others, better visualization of the information data structures being browsed, and effective communication of the browsing process

Impact of PE Physical Activity Levels on Percent Body Fat: Examined against Healthy Fitness Zone

Please view abstract in the attached PDF file

Brayton-cycle radioisotope heat-source design study. Phase II /preliminary design/ report

Brayton cycle radioisotope heat source desig

Production, Crude Protein, and Use of 11 Irrigated Grasses and Alfalfa-Grass Combinations on Clay Soils in Western South Dakota

Livestock production in western South Dakota and other portions of the Northern Great Plains is a primary source of agricultural income. Maximum sustained livestock numbers are directly related to adequate forage production. Prior to recent advances in agricultural technology and application, maintenance of livestock numbers was difficult in periods of drought or heavy snow f all. With the advent of mechanized farming equipment, increased acreages of irrigated land, improved forage varieties, and better management practices, much has been done to increase and stabilize forage production, thereby stabilizing livestock production. Some portions of the region, including the Belle Fourche Irrigation Project, have great potential f or producing sustained abundant forage as hay , silage, and/or summer pasture. Although an estimated two-thirds of the irrigable land on the Project currently is devoted to forage production, little information is available concerning introduced grass yields, persistence, quality , and regrow the characteristics on irrigated Pierre Clay soils. This lack of information prompted a study to evaluate several characteristics of 11 common grasses grow n without nitrogen, with commercial nitrogen, and with alfalfa

Plants of South Dakota Grasslands: A Photographic Study

The primary aim of this publication is to deal with vegetation of the plains, prairies, and associated tame pastures of South Dakota, as they exist today. Geographically, the major grassland area is in the western two-thirds of the State. Vegetation of the Tall Grass Prairie in the eastern third is considered in some detail, but more plants are listed that are characteristic of the mixed prairie in the remainder of the State. While no attempt was made to include vegetation of the Black Hills, many species common to plains are also found in the Hills and, where appropriate, this dual distribution is mentioned

Performance of differenced range data types in Voyager navigation

Voyager radio navigation made use of a differenced rage data type for both Saturn encounters because of the low declination singularity of Doppler data. Nearly simultaneous two-way range from two-station baselines was explicitly differenced to produce this data type. Concurrently, a differential VLBI data type (DDOR), utilizing doubly differenced quasar-spacecraft delays, with potentially higher precision was demonstrated. Performance of these data types is investigated on the Jupiter-to-Saturn leg of Voyager 2. The statistics of performance are presented in terms of actual data noise comparisons and sample orbit estimates. Use of DDOR as a primary data type for navigation to Uranus is discussed

Teachers Bridging the Digital Divide in Rural Schools with 1:1 Computing

This article shares the findings of a mixed method study about the implementation of 1:1 computing in a small rural Florida school district. Researchers used multiple regression analyses to examine whether Davis’ (1989) Technology Acceptance Model helped explain teachers’ adoption of 1:1. The results indicated that the rural teachers’ perceived ease of use and perceived usefulness of 1:1 were significant predictors of both whole class and individualized instructions with 1:1. The qualitative phase of the study explored the ways in which the teachers integrated 1:1 into their instructional practices and what factors motivated them to do so. The analysis showed that the teachers used 1:1 largely to foster digital literacy and collaboration as well as to conduct student assessment. Reasons why the teachers integrated 1:1 into instruction included increasing student engagement, personalizing learning, and facilitating teacher productivity