196,128 research outputs found
Rescue archaeological survey for the project of reconstruction of “Karantinata” fishing port, Asparuhovo neighbourhood, Varna
No full textThe rescue archaeological survey in Karantinata locality, Asparuhovo neighbourhood of Varna town, aimed to determine whether the implementation of the project for reconstruction of “Karantinata” fisherman port would affect underwater cultural heritage (fig. 1). The reason for conducting the study is a publication reporting that in the area there is an ancient breakwater and a shipwreck with amphorae (1964, 18 – 24, figs 12 – 21). Another breakwater is described in the same publication in the bay west of Cape Galata ( 1964, 22, fig. 14).The survey was conducted in May 2019 through geophysical research (bathymetric multibeam sonar and side-scan sonar mapping) followed by diving surveys (figs 2, 3). The data collected shows that in the area of construction of the new facilities of “Karantinata” fisherman port the bottom is sandy and without visible anomalies. The information about the ancient breakwaters and shipwreck east of the actual “Karantinata” jetty was verified by diving inspections. Only natural, irregularly shaped reef with north–south direction was recorded. The ashlar stone blocks described by G. Toncheva were not found, but it was observed that the sedimentary rocks in the area naturally split into rectangular pieces (fig. 4). Some amphorae shards as well as bricks and tile fragments were collected at the base of the scarp at a depth of 3–4 m during the diving inspection (fig. 5). The “amphorae deposits” mentioned by G. Toncheva were not located. The study regarding the project for Reconstruction of “Karantinata” Fishermen’s Port, Asparuhovo, Varna, was closed with the following conclusions: 1) There are no visible archaeological structures in the area of the investment intent and the wider water area east of it. 2) The claim of the presence of artificial ancient breakwaters in Lazuren Bryag locality (known also as “Karantinata”) and near Cape Galata should be rejected, since the observed linear stone structures are natural geological formations of the Galata Formation. 3) The archaeological materials collected in the “Karantinata” waters are too sparse and asynchronous to be recognized as a ship cargo. However, this does not exclude the possibility that the finds could mark an anchorage that had previously functioned in the area
Rescue archaeological investigations in the harbour of Sozopol
No full textThe rescue investigation was carried out by the Centre for Underwater Archaeology in May 2020 in part of Sozopol’s harbour that has not been archaeologically explored before (Dimitrov et al. 2020). They were funded by Sozopol municipality under a project for anchoring of floating piers (fig. 1). The investigations comprised geophysical investigation, archaeological excavations, creation and analysis of a GIS database, and underwater surveys of the central part of the harbour. Archaeological excavations were carried out in a single grid-square (Z) located 7 m SW of the outermost anchor of the proposed floating piers. Grid-square Z was set on the flat sandy-mud bottom at a depth of -4.1 m (from thesurface). From that depth (modern bottom) down to -4.7/4.8 m, the entire surface of the grid-square was excavated, and from -4.8 m downwards only its western half, revealing the following layers (fig. 2): - Bottom of the modern harbour – from -4.1 м to -4.7/4.8 m.- Harbour accumulation from the Ottoman period – from -4.7/4.8 to -4.9/5.1 m.- Harbour accumulation from Classical Antiquity – from -4.9/5.1 to -5.5/5.6 m. It contains numerous wellpreserved materials of utilitarian character, mostly relatively modest tableware, cooking ware, and amphorae (fig. 3).The earliest vases could be dated to c. 600 BC. The chronological distribution of the finds is uneven, the 6th and the5th c. BC being best represented. After a clear drop in the 4th c. BC, there may be a hiatus from about the middle of thecentury to the second quarter of the 3rd c. BC. The later Hellenistic and the Roman periods are also attested with not sonumerous vases.- Sterile layer without archaeological materials, explored with a trench down to -7.4 m.To summarize, the sector of Sozopol’s harbour excavated in 2020 has not been dredged during port constructionworks and its stratigraphy is intact and illustrates an historical development from the end of the 7th c. BC to present day.No remains of prehistoric settlements were discovered here.The analysis of all available data indicates that the construction of the modern harbour of Sozopol in 1927 andthe reconstructions in the late 1980s have destroyed to a great extent the archaeological remains underwater along thecentre line of the port (figs. 4 and 5). However, in the eastern half of the harbour, a sector is identified with intact stratafrom the historic periods and prehistory
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
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
Underwater archaeological survey of Nesebar Aquatory
No full textThe underwater archaeological heritage of Nesebar, ancient Mesambria, was surveyed from 1960 to 1984. L. Ognenova discovered remains from the fortification system of the ancient town, dated to Pre-Greek, Classic, Hellenistic and Late Antique period (Preshlenov 2012). Most of the underwater monuments from the northern side of Nesebar peninsula were buried under coastal protection facilities built in 1980s. In 2017 the Center for Underwater Archaeology resumed the study. Most of the known and some unknown monuments were discovered and documented. These were walls of massive slabs (fig. 3, fig. 1. 2, 7) or well processed blocks (fig. 2, fig. 1. 4–6) associated with the Greek polis, Late Antique walls of stones with mortar (fig. 1. 1) as well as in opus mixtum (fig. 1. 3, 10). A wall dated to the Pre-Greek period was not found. The majority of these structures laybetween 2 and 3 m depth. Only one wall of blocks (fig. 1. 6) is at 5,5 m depth (Preshlenov 2012, 503, fig. 5, 509–512). A marine geophysical survey was conducted
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
Transition to turbulence in a qblique shock-wave/boundary-layer interaction at M=15
No full textDirect numerical simulations are carried out for different forcing techniques to trigger transition during the interaction between an oblique shock-wave and a laminar boundary-layer at M = 1.5. Three forcing methods are used: a) forcing of oblique unstable modes, whose shape and behaviour are determined by the local linear stability theory, b) broadband free-stream acoustic disturbances, and c) a cold plasma flow control device. While the oblique-mode breakdown is dominant for low-amplitude forcing, long streaky structures drive the transition process in a high-amplitude disturbance environment. LES are also performed on the experimental setup by the Institute of Theoretical and Applied Mechanics (ITAM) from Novosibirsk State University with cold plasma actuation. As well as the disturbance type, the effect of Reynolds number and forcing amplitude will be investigated
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