Analysis of Temperature and Humidity Effects on Horizontal Photovoltaic Panels

The United States Air Force seeks to address power grid vulnerability and bolster energy resilience through the use of renewable energy sources. Air Force Institute of Technology engineers designed and manufactured control systems to monitor power production from the most widely-used silicon-based solar cells at 38 testing locations around the globe spanning the majority of climate types. Researchers conducted multivariate regression analysis to establish a statistical relationship between photovoltaic power output, ambient temperature, and humidity pertaining to monocrystalline and polycrystalline photovoltaic panels. Formulated models first characterized power output globally, then by specific climate type with general inaccuracy. Location-specific models are provided with varying accuracy, allowing a number of locations to predict energy output and make decisions regarding future energy projects. It was found that additional predictor variables are required to hone model accuracy. Recommendations are made that modify the current study for the purpose of increasing data quality as well as ensuring the validity and accuracy of resulting regression models and the future ability to forecast power production for use by decision-making authorities. Further, a full year of measurements combined with proposed modifications will demonstrate feasibility of utilizing horizontal photovoltaic technology

Significant Activities Of The National Association For The Advancement Of Colored People

It is only fair to the reader to say frankly in advance that the attitude of any person toward the subject will be distinctly influenced by his preconceived notions of an effective Inter-racial agency. If he questions the writer\u27s selection of every act, merely for the sake of satisfying a hypo-critical nature, then he will need something more than the sort of facts and comments that the writer has given, lit is not the writer s attempt to convince anyone of the strength or weakness of the National Association for the Advancement of Colored People. The writer uses several reference books, a few Negro newspapers, answers to personal and written inquiries, and an assortment of pamphlets and magazines. Although the account of the activities may appear biased, the writer uses precaution in his presentation. A. Purposes of this Study:- The writer has two general purposes in writing this thesis. They are: (1) to sketch the origin, development, and representative activities of the National Association for the Advancement of Colored People\ and (2) to appraise the activities and accomplishments of the organization. 3. Limitations on the Scope of the Subject:- The following limitations are placed on the scope of the subject: (1) The treatment does not aim to be chronological; rather several accounts are cited in addition to the reconstruction background to support the claim that the National Association for the Advancement of Colored People has been active since its formation; (2) the source of material is limited to pamphlets and bulletins from the National Office, Negro Histories, newspaper accounts and personal and written communications with officials of the National and. branch offices; (3) the appraisal is that of officials of the organization, and the writer\u27s personal interpretation; (4) other civic organizations are passed over lightly; (5) although various activities are depicted briefly, stress is placed on the crusade against lynching; and (6) the writer avoids tracing rises and declines in membership, interest, and finance

Voluntary Affirmative Action Compliance in Texas Public Junior Colleges During the Period 1975-1977

Non

Stevens-Johnson Syndrome triggered by chemical hair relaxer: a case report

This case report describes a 41-year-old Afro-Caribbean lady presenting with a constellation of pyrexia, conjunctivitis, arthralgia, sterile dysuria, apthous ulceration, labial crusting and widespread erythema multiforme. A diagnosis of Stevens-Johnson Syndrome was made. She had taken no medications recently (the most common precipitant of Stevens-Johnson Syndrome) and a full screen for the common and atypical bacterial and viral triggers was negative. The identified trigger was the use of a chemical hair relaxant treatment a few days previously. With supportive measures and a course of oral prednisolone, the patient quickly improved and made a full recovery. This case highlights the importance of considering occupational and recreational precipitants of Stevens-Johnson Syndrome

Miniaturized Fractionation and Purification of Analytes of Interest in Complex Mixtures: Protein Enrichment and Purification with Capillary Electrophoresis and Identification of Pesticide Chemicals in Bio-oils

The ability to isolate and detect an analyte of interest is vital for many different facets of life today, from disease detection to environmental safety. The goal of the method development discussed within this thesis is to isolate and identify unique analytes from complex matrices and to do so in a scaled down approach. Removal of an analyte from a diverse background of molecules is often required for successful detection and determination of analyte properties. As well, many samples are only available at low volumes and at trace levels so miniaturized techniques that only require small sample volumes are designed and discussed herein. Two unique classes of analytes are examined with one common theme of isolation for successful detection. Proteins and peptides are enriched and purified from permanently charged and buffering ions, which are common biological contaminants, using discontinuous buffers with capillary electrophoresis. This method only uses sub-microliter quantities of sample and exploits the isoelectric point of the biological macromolecules in buffers of different pH. Successful removal of sodium chloride, TRIS, phosphate, and MES is demonstrated. Subsequent enhanced mass spectral detection and separation of a protein mixture exhibited the improved analyte detection by employing discontinuous buffers. Magnetic beads are used to isolate phosphorylated peptides at micro to nanoliter volumes by covalent derivatization of the post-translational modification and selective enrichment, further demonstrating the online CE sample preparation capabilities. The second challenging sample examined is bio-oil, a complex mixture of thousands of chemicals. The novel pesticide properties of this sample are explored as the chemical complexity of pyrolysis bio-oil from tobacco leaves is reduced through isolation by solid phase extraction, liquid-liquid extraction, and heating. Mass spectrometry is used to identify the compounds after separation by gas chromatography. Three problematic microorganisms in Canada, S. scabies, C. michiganensis, and P. ultimum, are negatively affected by the bio-oil. It is determined that the most abundant phenolic species are not responsible for the observed pesticide activity from the bio-oil. A few minor components are identified that could contribute to the observed antimicrobial activity, but no abundant, active chemicals could be identified with the current technology

The Essex turnpike trusts

This thesis is an enquiry into the turnpike Trusts which operated wholly or in part in Essex. The first Chapter analyses the creation of the early Trusts in the context of previous Parliamentary resistance to the turnpike principle, discussing the choice of roads selected for repair by toll money against the state of Essex roads in general. It traces the progress of the Trusts under the management of local justices and the practical and political issues which this raised. Chapter Two is about the economic background in Essex to the turnpike movement, comparing the growth of the turnpike system with contemporary moves to improve waterways; it discusses the industrial and commercial characteristics of Essex, particularly the contrast between the east and west sides of the county and their respective routes for the carriage of goods. The metropolitan Trusts, which differed fundamentally from their rural counterparts in constitution and outlook, are the subject of Chapter Three. They are seen as a medium for 'improvement' and investment. Chapter Four describes the administration of the more rural Essex Trusts, particularly the work of the trustees, the calibre of their officers, the problems of toll farming and policies for attracting investment. The role of J. L. McAdam is seen as significant in giving many Trusts a new spirit and sense of purpose. The last Chapter traces the decline of the Trusts in the wake of railway competition and the complexities of Victorian legislation in local government. The thesis ends with a summary of conclusions, assessing the importance of the Essex Trusts in economic and constitutional terms and the contribution which the Essex experience has to offer to the study of turnpike history elsewhere