196,273 research outputs found
Three-Dimensional Surface Motion Displacement Estimation of the Muz Taw Glacier, Sawir Mountains
No full textResearch on glacier movement is helpful for comprehensively understanding the laws behind this movement and can also provide a scientific basis for glacier change and analyses of the dynamic mechanisms driving atmospheric circulation and glacier evolution. Sentinel-1 series data were used in this study to retrieve the three-dimensional (3D) surface motion displacement of the Muz Taw glacier from 22 August 2017, to 17 August 2018. The inversion method of the 3D surface motion displacement of glaciers has been verified by the field measurement data from Urumqi Glacier No. 1. The effects of topographic factors, glacier thickness, and climate factors on the 3D surface displacement of the Muz Taw glacier are discussed in this paper. The results show that, during the study period, the total 3D displacement of the Muz Taw glacier was between 0.52 and 13.19 m, the eastward displacement was 4.27 m, the northward displacement was 4.07 m, and the horizontal displacement was 5.90 m. Areas of high displacement were mainly distributed in the main glacier at altitudes of 3300–3350 and 3450–3600 m. There were significant differences in the total 3D displacement of the Muz Taw glacier in each season. The displacement was larger in summer, followed by spring, and it was similar in autumn and winter. The total 3D displacement during the whole study period and in spring, summer, and autumn fluctuated greatly along the glacier centerline, while the change in winter was relatively gentle. Various factors such as topography, glacier thickness, and climate had different influences on the surface motion displacement of the Muz Taw glacier
Anamur yöresindeki muz seralarının özellikleri ve doğal havalandırma etkinliğinin belirlenmesi
No full textTEZ6459Tez (Yüksek Lisans) -- Çukurova Üniversitesi, Adana, 2007.Kaynakça (s.81-84) var.x, 89 s. : res. ; 29 cm.The main objective of this study is to determine the natural ventilation efficiency and climatic properties of the banana greenhouses in Anamur region. Structural and functional properties of the different greenhouses where banana are grown were determined with survey studies. Air temperature and relative humidity values at different locations and heights were measured in two types of greenhouses which represent the banana greenhouses in the Anamur region. Natural ventilation rates per floor area were calculated in low and high types banana greenhouses. Natural ventilation openings ratios in the banana greenhouses were calculated according to Anamur climate. In winter period during the day time, the air temperature at 1.5 m height in low and high types greenhouses were changed in 26.839.8 C and 2734.6 C, respectively. The air temperature differences at 1.5 m height and gutter height were 5.2 C and 2.9 C in low and high greenhouses, respectively. In winter period during the day time, the average relative humidity was 79.3% and 86.4 in low and high type greenhouses.Bu çalışmada, Anamur yöresinde muz yetiştiriciliği yapılan seralarda doğal havalandırma etkinliği ve iklimsel özelliklerin muz tarımına uygunluğunun belirlenmesi amaçlanmıştır. Araştırmada farklı tipteki muz seralarının yapısal ve işlevsel özellikleri, anket çalışması ile belirlenmiştir. Anamur ilçesindeki muz seralarını temsil eden alçak ve yüksek tip iki serada, farklı yerleşim ve yüksekliklerde hava sıcaklığı ve bağıl nem değerleri ölçülmüştür. Alçak ve yüksek tip muz seralarında; sıcaklık farkı ve rüzgar etkisiyle gerçekleşen doğal havalandırma oranı, özgül havalandırma oranı, hava değişim sayısı ve gerekli doğal havalandırma açıklığı oranları hesaplanmıştır. Anamur iklimi koşullarında muz seraları için uygun havalandırma açıklığı ve özgül havalandırma oranı değerleri belirlenmiştir. Kış dönemindeki gündüz sürelerinde iç ve dış ortam arasındaki ortalama sıcaklık farkı; alçak ve yüksek tip seralarda, sırasıyla 7.8 C ve 5.5 C olarak belirlenmiştir. Belirtilen bu değerler yaz döneminde alçak tip serada 5.6 C, yüksek tip serada ise 1.7 C olarak gerçekleşmiştir. Kış dönemindeki gündüz sürelerinde ortalama bağıl nem, alçak ve yüksek tip seralarda sırasıyla, % 73.8 ve % 83.7 ollrak hesaplanmıştır. Bu değerler yaz döneminde alçak tip serada % 65.1, yüksek tip serada ise ve % 76 olarak hesaplanmıştır. Yaz döneminde gündüz sürelerinde sıcaklık farkı etkisiyle gerçekleşen doğal havalandırma oranı alçak ve yüksek tip seralarda sırasıyla, ortalama 68.9 m3/s ve 48.1 m3/s olarak hesaplanmıştır. Aynı dönemde rüzgar etkisiyle gerçekleşen doğal havalandırma oranı; alçak ve yüksek tip seralarda sırasıyla, ortalama 62.71 m3/s ve 55.68 m3/s olarak hesaplanmıştır. toplam doğal havalandırma debisi alçak ve yüksek tip seralarda sırasıyla, ortalama 93.24 m3/s ve 73.73 m3/s olarak hesaplanmıştır. Özgül havalandırma oranı, alçak ve yüksek tip seralarda sırasıyla, ortalama 1.82 m3/m2dak ve 1.33 m3/m2dak olarak belirlenmiştir.Bu çalışma Ç.Ü. Bilimsel Araştırma Projeleri Birimi Tarafından Desteklenmiştir. Proje No:ZF2006YL
Dr. Duane M. Jackson, Morehouse College, July 2011
No full textThis video is a conversation with Dr. Duane M. Jackson. Dr. Jackson talks about his paper, "Recall and the Serial Position Effect: The Role of Primacy and Recency on Accounting Students' Performance." Jackie Daniel, AUC Woodruff Library, is the interviewer
"Reflections on the subject of Emigration from Europe with a view to Settlement in the United States" By M. Carey.
No full text"Reflections on the subject of Emigration from Europe with a view to Settlement in the United States: containing bried sketches of the moral and political character of those states.
By M. Carey, member of the American philosophical, and of the American Antiquarian Society, and author of The Olive Branch, Cindiciae Hibernicae, essays on banking, on political economy, and on internal improvement.
To which are now added the English editor's comments on the subject; together with Important Advice to Emigrants, and Cautions Against Impositions Practiced in the Outports
Dispelling the Myths Behind First-author Citation Counts
No full textWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
Dr. Glendon Swarthout
No full textHosted by Roger M. Busfield, MSU Assistant Professor of Speech and Theater, Meet the Author is designed to introduce a general audience to a contemporary author and their work through in-depth interviews. This episode features a conversation between Dr. Glendon Swarthout, prolific author and English professor at MSU, and assistant professors Sam S. Baskett and Theodore B. Strandness
Surface Albedo and Snowline Altitude Estimation Using Optical Satellite Imagery and In Situ Measurements in Muz Taw Glacier, Sawir Mountains
No full textGlacier surface albedo strongly affects glacier mass balance by controlling the glacier surface energy budget. As an indicator of the equilibrium line altitude (ELA), the glacier snowline altitude (SLA) at the end of the melt season can reflect variations in the glacier mass balance. Therefore, it is extremely crucial to investigate the changes of glacier surface albedo and glacier SLA for calculating and evaluating glacier mass loss. In this study, from 2011 to 2021, the surface albedo of the Muz Taw Glacier was derived from Landsat images with a spatial resolution of 30 m and from the Moderate Resolution Imaging Spectroradiometer albedo products (MOD10A1) with a temporal resolution of 1 day, which was verified through the albedo measured by the Automatic Weather Station (AWS) installed in the glacier. Moreover, the glacier SLA was determined based on the variation in the surface albedo, with the altitude change along the glacier main flowline derived from the Landsat image at the end of the melt season. The correlation coefficient of >0.7, with a risk of error lower than 5%, between the surface albedo retrieved from remote sensing images and the in situ measurement data indicated that the method of deriving the glacier surface albedo by the remote sensing method was reliable. The annual average albedo showed a slight upward trend (0.24%) from 2011 to 2021. A unimodal seasonal variation in albedo was demonstrated, with the downward trend from January to August and the upward trend from August to December. The spatial distribution of the albedo was not entirely dependent on altitude due to the dramatic effects of the topography and glacier surface conditions. The average SLA was 3446 m a.s.l., with a variation of 160 m from 2011 to 2021. The correlation analysis between the glacier SLA and annual mean temperature/annual precipitation demonstrated that the variations of the average SLA on the Muz Taw Glacier was primarily affected by the air temperature. This study improved our understanding of the ablation process and mechanism of the Muz Taw Glacier
Simulation of thermal plant optimization and hydraulic aspects of thermal distribution loops for large campuses
No full textFollowing an introduction, the author describes Texas A&M University and its utilities system. After that, the author presents how to construct simulation models for chilled water and heating hot water distribution systems. The simulation model was used in a $2.3 million Ross Street chilled water pipe replacement project at Texas A&M University. A second project conducted at the University of Texas at San Antonio was used as an example to demonstrate how to identify and design an optimal distribution system by using a simulation model. The author found that the minor losses of these closed loop thermal distribution systems are significantly higher than potable water distribution systems. In the second part of the report, the author presents the latest development of software called the Plant Optimization Program, which can simulate cogeneration plant operation, estimate its operation cost and provide optimized operation suggestions. The author also developed detailed simulation models for a gas turbine and heat recovery steam generator and identified significant potential savings. Finally, the author also used a steam turbine as an example to present a multi-regression method on constructing simulation models by using basic statistics and optimization algorithms. This report presents a survey of the author??s working experience at the Energy Systems Laboratory (ESL) at Texas A&M University during the period of January 2002 through March 2004. The purpose of the above work was to allow the author to become familiar with the practice of engineering. The result is that the author knows how to complete a project from start to finish and understands how both technical and nontechnical aspects of a project need to be considered in order to ensure a quality deliverable and bring a project to successful completion. This report concludes that the objectives of the internship were successfully accomplished and that the requirements for the degree of Degree of Engineering have been satisfied
Structural and functional characteristics of banana greenhouses in Anamur region
No full textBu çalışmada Mersin ili Anamur ilçesinde muz yetiştiriciliği yapılan sera işletmelerinin; sosyal özellikleri ile işletmelere ait sera tipleri, kullanım şekilleri, tasarım ve iklimlendirme özellikleri incelenmiştir. Muz seralarının ortalama büyüklüğü 0.289 ha olarak belirlenmiştir. Seralara ait veriler anketle belirlenmiştir. Seraların büyük bir çoğunluğu (%95) mülk sahipleri tarafından işletilmekte olup, diğer seralar (%5) ortakçılar tarafından işletilmektedir. Muz sera alanlarının %98’i plastik ve %2’sini cam seralar oluşturmaktadır. Sera yapılarının %54’ü çok-bloklu, %46’sı ise tek-blok olarak tasarımlanmıştır. Sera yapılarının oluk yüksekliği %85 oranda 3-5 m arasındadır. Bölgede muz veriminin ortalama 53 850 kg/ha olduğu belirlenmiştir.The research has been conducted to determine the social structures of greenhouse farms with greenhouse constructions, way of using, design and climate characteristics and functional characteristics of the banana greenhouses in Anamur Region of Mersin. The average ground area of the greenhouses are determined as 0.289 ha. The data related to the banana greenhouses was determined a questionnaire. Majority of greenhouses (95%) run by property ownership. Other greenhouses (5%) run by sharecropper. The rate of plastic and glass areas of the banana greenhouses were 92% and 2%, respectively. The 54% of the greenhouse structures was designed as multicompartment and the 54% of the greenhouse structures was designed as single compartment. The gutter height was varied from 3 m to 5 m in the 85% of greenhouse structures. The average banana yield was 53 850 kg/ha in the region
Intern experience at CH���M Hill, Inc.: an internship report
No full textIncludes author's vita"Submitted to the College of Engineering of Texas A&M University in partial
fulfillment of the requirement for the degree of Doctor of Engineering."Includes bibliographical referencesA review of the author's internship experience with CH���M HILL, Inc.
during the period September 1975 through May 1976 is presented. During this nine month
internship the author worked as an Engineer II in the Industrial Processes discipline of this
large consulting engineering firm... The author's prime responsibility was as one of three
lead design engineers on the design of a large wastewater treatment facility for a pulp mill
in Hoquiam, Washington owned by ITT Rayonier Inc. The work generally consisted of the design
of individual treatment units and associated piping and pumping. The purpose of the project
was to provide wastewater treatment capabilities that would satisfy the effluent limitations
(standards) imposed upon the mill by the State of Washington Department of Ecology and the
U.S. Environmental Protection Agency. The author's assignment also entailed necessary
interaction with the project manager and other CH���M HILL design engineers and support staff
members, the client's representatives, and representatives of two other consulting engineering
firms working on the project. Thus, the internship position at CH���M HILL provided considerable
experience coordinating the author's work with the work of other engineers, guiding the design
and administrative efforts of a support staff, and interacting regularly with the client and
other consulting firms. This broad exposure to a variety of engineering and organizational
problems provided a valuable educational experience
- …
