Individual Research Programs Research Articles

The value of improvements in the absorbing and glazing surfaces of solar devices

Simulation techniques are used to examine the value of various technical improvements in solar collection-storage devices in residential, industrial and agricultural passive space heating applications. The improvements include decreased emittances and increased absorptances in absorbing surfaces, and decreased reflectances and emittances in glazings. The improvements are evaluated in the context of a single family house and of an agricultural and an industrial application having large ventilation requirements. The results of this study show that decreases in glazing reflectance are of the most value, followed (in order of likely decreasing importance) by increased absorber absorptance, decreased absorber emittance, and decreased glazing emittance. These qualitative results should not be used to determine or guide research priorities directly; rather, individual research programs should be evaluated using the quantitative results of this study in conjunction with other applicable information.

Announcement

Abstract Positions Available. Postdoctoral Fellowship in Immunobiology: Postdoctoral fellowships in cancer immunology, immunobiology, and clinical immunology are available at Sloan-Kettering Institute for Cancer Research. Fellows will be trained in: cellular immunology, development and interaction of lymphoid cells, molecular immunology, clinical immunology and cancer, human and mouse immunogenetics, tumor immunology, cell surface immunochemistry and immunogenetics. Training methods include individualized research with qualified mentor, training in clinical laboratory analysis, lectures, courses, seminars, discussions, rounds, clinics, and conferences. Individual research program will be offered either at N.Y.C. or Walker Laboratory, Rye, N. Y. Fellowships are offered to postdoctoral candidates who have received their Ph.D., M.D., or equivalent degree requirements; previous postdoctoral experience not to exceed three years except in unusual cases. Only U. S. citizens or foreign nationals with permanent resident or immigrant visas will be considered. Appointments are made for one year, but the training period will usually be two years.

University of Colorado 1975 Field Season on Baffin Island

Eight individual research programmes were carried out by graduate students and one faculty member of the University's Institute of Arctic and Alpine Research (INSTAAR) during the 1975 field season. They were concentrated around the settlements of Broughton Island and Pangnirtung as well as the DEW line station at Cape Dyer. Field operations were facilitated by an early break-up, which permitted sea travel by canoe. ... Two investigations were carried out from ... [Pangnirtung]. The first concerned the Holocene climate of the area. ... The other study involved the surveying of ten moraine systems fronting individual cirque glaciers. The volume of the ice core and surficial and englacial till was measured. The figures obtained will be used in a study of contemporaneous rates of glacial erosion in these subpolar glaciers. The first of two research projects based around Cape Dyer was a study of the Quaternary geology of the area between Sunneshine and Monneshine Fiords. ... The second programme involved a study of the elevational limits of various types of "lichen-free" areas, varying from trimlines around glaciers to extensive areas on plateaus that were once mantled by a permanent or semi-permanent snow cover. Dating of the onset and disappearance of snow cover was carried out by lichenometry, and samples of dead vegetation (Salix) were collected for radiocarbon dating. Field programmes in Quaternary geology, plant ecology and palynology, limnology and fast-ice studies were carried out. ... Studies of water temperature and other standard measurements were carried out at several lakes. Planktonic hauls were made, and a study performed, on the effect of light on plankton levels. Field measurements on surface energy budget components were completed. They were designed to assist in improvising INSTAAR's fast ice melt-stage model. The local measurements at Broughton Island were supplemented by several flights in the Canadian Ice Reconnaissance Patrol over Davis Strait.

Post offered as visiting scientist in environmental sciences

The IBM Thomas J. Watson Research Center is now accepting applications for appointment as Wallace J. Eckert Visiting Scientist in Environmental Sciences for the academic year 1975–1976.Although the program is specifically intended for persons on sabbatic leave from universities and government laboratories, applications from any scientist prepared to carry out independent research will be seriously considered. Visiting scientists will normally be appointed for a period of one year. Their only duty will be to pursue their individual research programs at the Thomas J. Watson Research Center. They will receive salaries comparable to those of permanent staff members and in addition will be reimbursed for relocation expenses and for travel expenses during the tenure of their appointment.