Search

Your search keyword '"Wilson, Earle"' showing total 45 results
Start Over Author "Wilson, Earle"
45 results on '"Wilson, Earle"'

4. Investigation of renewable, coupled solar-hydrogen fuel generation with thermal management systems suitable for equatorial regions

Author

Wilson, Earle Anthony and Kolokotroni, M.

Subjects
628, Gravity-fed cooling system, Solar-powered adsorption cooling system, Photovoltaic, Proton exchange membrane (PEM), Fossil fuel
Abstract

Solar Energy and Hydrogen (energy carrier) are possible replacement options for fossil fuel and its associated problems of availability and high prices which are devastating small, developing, oil-importing economies. But a major drawback to the full implementation of solar energy, in particular photovoltaic (PV), is the lowering of conversion efficiency of PV cells due to elevated cell temperatures while in operation. Also, hydrogen as an energy carrier must be produced in gaseous or liquid form before it can be used as fuel; but its‟ present major conversion process produces an abundance of carbon dioxide which is harming the environment through global warming. In search of resolutions to these issues, this research investigated the application of Thermal Management to Photovoltaic (PV) modules in an attempt to reverse the effects of elevated cell temperature. The investigation also examined the effects of coupling the thermally managed PV modules to a proton exchange membrane (PEM) Hydrogen Generator for the production of hydrogen gas in an environmentally friendly and renewable way. The research took place in Kingston, Jamaica. The thermal management involved the application of two cooling systems which are Gravity-Fed Cooling (GFC) and Solar-Powered Adsorption Cooling (SPAC) systems. In both systems Mathematical Models were developed as predictive tools for critical aspects of the systems. The models were validated by the results of experiments. The results of the investigation showed that both cooling systems stopped the cells temperatures from rising, reversed the negative effects on conversion efficiency, and increased the power output of the module by as much as 39%. The results also showed that the thermally managed PV module when coupled to the hydrogen generator impacted positively with an appreciably increase of up to 32% in hydrogen gas production. The results of this work can be applied to the equatorial belt but also to other regions with suitable solar irradiation. The research has contributed to the wider community by the development of practical, environmentally friendly, cost effective Thermal Management Systems that guarantee improvement in photovoltaic power output, by introducing a novel way to use renewable energy that has potential to be used by individual household and/or as cottage industry, and by the development of Mathematical Tools to aid in photovoltaic power systems designs.

Published
2010

5. Coastal buoyancy controls on multiple melt regimes of warm West Antarctic ice shelves

Author

Moorman, Ruth, Thompson, Andrew F, and Wilson, Earle A

Abstract

Mass loss from the West Antarctic Ice Sheet is currently dominated by discharge through ice shelves exposed to warm modified Circumpolar Deep Waters (mCDW). Basal melt rates in these regions track decadal scale oscillations in the depth of the thermocline separating mCDW from cooler near-surface waters. Prior work has attributed the observed thermocline depth variability to wind-driven variations in shoreward mCDW transport. Here, we show that transformation of mCDW in coastal polynyas also impacts mCDW thickness variability, and we compare the importance of this mechanism to shelf break wind forcing.We introduce a simple overturning circulation model for the continental shelf that distinguishes between thermocline depth variability associated with mCDW supply and mCDW transformation. This model indicates that surface buoyancy fluxes within coastal polynyas can generate large decadal variations in thermocline depth in the absence of variable mCDW inflow, posing an alternative mechanism for observed mCDW thickness variability. The modeled variability takes the form of transitions between bistable high and low melt regimes, made possible by feedbacks between basal ice melt and stratification at the ice front. Our simple model can explain both the magnitude of observed thermocline depth variations and their lagged correlation with stratification strength, which are not fully accounted for in work focussed on wind forcing. The work suggests a previously underestimated role for coastal polynya dynamics in setting the melt rates of West Antarctic ice shelves and demonstrates the utility of framing the transport of ocean heat towards ice shelves in terms of an overturning circulation., The 28th IUGG General Assembly (IUGG2023) (Berlin 2023)

Published
2023

12. Antarctica and the Southern Ocean

Author

Clem, Kyle R., primary, Raphael, Marilyn N., additional, Adusumilli, Susheel, additional, Baiman, Rebecca, additional, Banwell, Alison F., additional, Barreira, Sandra, additional, Beadling, Rebecca L., additional, Colwell, Steve, additional, Coy, Lawrence, additional, Datta, Rajashree T., additional, De Laat, Jos, additional, Dunmire, Devon, additional, Fogt, Ryan L., additional, Freeman, Natalie M., additional, Fricker, Helen Amanda, additional, Gardner, Alex S., additional, Johnson, Bryan, additional, Keller, Linda M., additional, Kramarova, Natalya A., additional, Lazzara, Matthew A., additional, Lieser, Jan L., additional, MacFerrin, Michael, additional, MacGilchrist, Graeme A., additional, MacLennan, Michelle L., additional, Massom, Robert A., additional, Mazloff, Matthew R., additional, Mote, Thomas L., additional, Nash, Eric R., additional, Newman, Paul A., additional, Norton, Taylor, additional, Petropavlovskikh, Irina, additional, Pitts, Michael, additional, Reid, Phillip, additional, Santee, Michelle L., additional, Scambos, Ted A., additional, Shi, Jia-Rui, additional, Stammerjohn, Sharon, additional, Strahan, Susan E., additional, Thompson, Andrew F., additional, Wille, Jonathan D., additional, and Wilson, Earle, additional

Published
2022
Full Text
View/download PDF

13. Atmospheric circulation and surface observations [in 'State of the Climate in 2021']

Author

Clem, Kyle R., Raphael, Marilyn N., Adusumilli, Susheel, Baiman, Rebecca, Banwell, Alison F., Barreira, Sandra, Beadling, Rebecca L., Colwell, Steve, Coy, Lawrence, Datta, Rajashree T., De Laat, Jos, Dunmire, Devon, Fogt, Ryan L., Freeman, Natalie M., Fricker, Helen Amanda, Gardner, Alex S., Johnson, Bryan, Keller, Linda M., Kramarova, Natalya A., Lazzara, Matthew A., Lieser, Jan L., MacFerrin, Michael, MacGilchrist, Graeme A., MacLennan, Michelle L., Massom, Robert A., Mazloff, Matthew R., Mote, Thomas L., Nash, Eric R., Newman, Paul A., Norton, Taylor, Petropavlovskikh, Irina, Pitts, Michael, Reid, Phillip, Santee, Michelle L., Scambos, Ted A., Shi, Jia-Rui, Stammerjohn, Sharon, Strahan, Susan E., Thompson, Andrew F., Wille, Jonathan D., and Wilson, Earle

Published
2022

20. Supercooled Southern Ocean Waters

Author

Haumann, F. Alexander, primary, Moorman, Ruth, additional, Riser, Stephen C., additional, Smedsrud, Lars H., additional, Maksym, Ted, additional, Wong, Annie P. S., additional, Wilson, Earle A., additional, Drucker, Robert, additional, Talley, Lynne D., additional, Johnson, Kenneth S., additional, Key, Robert M., additional, and Sarmiento, Jorge L., additional

Published
2021
Full Text
View/download PDF

21. A NASA high-latitude salinity campaign

Author

Drushka, Kyla, Gaube, Peter, Armitage, Tom, Cerovecki, Ivana, Fenty, Ian, Fournier, Severine, Chelle Gentemann, Girton, James, Haumann, Alexander, Lee, Tony, Mazloff, Matthew, Padman, Laurie, Rainville, Luc, Schanze, Julian J., Springer, Scott, Steele, Michael, Thomson, Jim, and Wilson, Earle

Abstract

This community white paper describes the motivation and potential ideas for a field campaign focused on understanding salinity variability in the high-latitude oceans. Such an experiment would potentially be of interest to the NASA Physical Oceanography program.

Published
2020
Full Text
View/download PDF

22. Supercooled Southern Ocean Waters

Author

Haumann, F. Alexander, primary, Moorman, Ruth, additional, Riser, Stephen C., additional, Smedsrud, Lars H., additional, Maksym, Ted, additional, Wong, Annie P. S., additional, Wilson, Earle A., additional, Drucker, Robert, additional, Talley, Lynne D., additional, Johnson, Kenneth S., additional, Key, Robert M., additional, and Sarmiento, Jorge L., additional

Published
2020
Full Text
View/download PDF

32. "From Lab to Market": Embracing a Paradigm Shift at Jamaica' National University via Value Capture from Innovative Research Results.

Author

WILSON, EARLE, IVEY, PAUL W., REID, DWIGHT, and BAKER, STEVE

Subjects
COMMERCIALIZATION, RESEARCH implementation, INTELLECTUAL property
Abstract

In this paper, reflection and the scholarship of integration are used to highlight, using a recent example of an internally-funded project, how the University of Technology, Jamaica is embracing a paradigm shift by capturing for commercial exploitation by industry the value that inheres in research results. The role of the university's research management office as a helpful intermediary, the lessons learnt, and the "pathway to impact" - where evidence of the translation of research into impacts is usually manifested - of the cited example are also discussed. It is concluded that taking the results of this research project from "lab to market" holds extremely important lessons for other researchers at UTech, Jamaica, students of the university, and the wider Jamaican society in that the actions taken together represent a "live" demonstration of the process of converting science into tangible value that has income-earning potential (i.e., "capitalization of science"). [ABSTRACT FROM AUTHOR]

Published
2016

33. Modelling the Isosteric Heating Process in a Charcoal Bed of a Solar Powered Adsorption Cooling System.

Author

Wilson, Earle A. and Kolokotroni, Maria

Subjects
*CHARCOAL, *COOLING systems, *SOLAR energy, *RENEWABLE energy industry, *TEMPERATURE measurements, *THERMODYNAMICS, *MATHEMATICAL models
Abstract

This paper addresses a problem associated with Solar Powered Adsorption Cooling (SPAC) systems. The problem is the difficulty in knowing if the complete charcoal bed reaches desorption temperature during the isosteric heating process. In addressing the issue, the process is modeled and the results are compared with those from experiments. The temperature-profile modelling of the isosteric-heating-process establishes a time-related formulation that gives the temperature, at any radius, across a cylindrical shaped bed comprising of charcoal/methanol pair of adsorbent/adsorbate; and the results from modelling compare favorably with the measured temperature-profiles obtained from the experiments. [ABSTRACT FROM AUTHOR]

Published
2014

36. Some Properties of Human Endometrial Alkaline Phosphatase

Author

Wilson, Earle W.

Abstract

A study of some biochemical properties of alkaline phosphatase derived from human endometrium has been undertaken. The endometrial enzyme has been shown to be different from alkaline phosphatases obtained from placenta and small intestine. Endometrial alkaline phosphatase is inhibited by sodium deoxycholate but not by l-phenylalanine; it is completely inhibited by 3M urea. Magnesium ions have no significant effect on the endometrial enzyme. No differences in biochemical properties were observed when alkaline phosphatase from follicular phase endometrium was compared with that from luteal phase tissue. Acrylamide gel electrophoresis showed a single, constant band of enzyme at all stages of the cycle. It is concluded that, despite the cyclic appearance of alkaline phosphatase in endometrial glands and the constant presence of the enzyme in blood vessels, there is but one variety of alkaline phosphatase in human endometrium.

Published
1976
Full Text
View/download PDF

37. DEPRIVATION OF PLACENTAL BLOOD AS A CAUSE OF IRON DEFICIENCY IN INFANTS

Author

WILSON, EARLE E., WINDLE, WILLIAM F., and ALT, HOWARD L.

Abstract

When the umbilical cord is clamped immediately after birth, over 100 cc. of blood can usually be obtained from the placental end of the cord.1 This blood normally flows into the infant if clamping is delayed until the placenta begins to descend into the vagina.2 During the neonatal period the infant's total blood volume is about 10 per cent of the body weight,3 and the average weight at birth is about 3.2 Kg.; therefore it is possible that the blood contained in the placenta and its surface vessels is equivalent to a third of the blood volume of the newborn infant. We have shown previously that depriving the infant of the placental blood results in a significant decrease in the erythrocyte count and the hemoglobin content of the blood and an increase in the reticulocytes during the first week of life.2c Further observations have indicated that

Published
1941
Full Text
View/download PDF

44. One Helluva Mousetrap.

Author

Warner, Tom, Black, Jim, Pindral, Debbie, Donofrio, Jim, Zenobia III, Frank, Wilson, Earle, and Alder, Eric

Subjects
FISHING, EDITORS, AQUATIC sports, PERIODICALS, SERIAL publications
Abstract

This article presents comments of editors of the May 2004 issue of the periodical "Field & Stream." One of the editors says that in the article "Freedom to Overfish" of the issue, the author asserts that conservation-minded saltwater anglers and groups like the Recreational Fishing Alliance are aiding overfishing and habitat destruction, when nothing could be further from the truth. The Freedom to Fish Act is being promoted to protect recreational fishermen from unwarranted and scientifically unjustified no-take reserves.

Published
2004

Catalog

Books, media, physical & digital resources
See catalog results