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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
471

Reactive plume model : the effects of stack exit conditions on the formation of acidic products in plumes from coal-fired power plants

Dröscher, Frank Martin 05 1900 (has links)
No description available.
472

The legal status of the airspace or trusteeship territory.

Flynn, Frank. J. January 1956 (has links)
Aeronautical progress bas thrust upon each of the politically active inhabitants of the globe, in more peremptory fashion each year, the task of reconciling his opinions as a human being with his opinions as a citizen. Those who believe that men in the mass ultimately act in accord with their interests and ultimately formulate their interests in accord with human considerations will foresee the emergence of a world community assuring peace and justice.
473

Legal status of the annexes to the Chicago convention.

Wijesinha, Samson. S. January 1960 (has links)
In the 1870's a bishop who had charge of a small denominational college made his annual visit and stayed with the president. The bishop boasted a firm belief that everything that could-be invented had been invented. The college president thought otherwise. “In 50 years,” he said, “men will learn how to fly like birds.” The bishop, shocked, replied, “Flight is reserved for angels, and you have been guilty of blasphemy.”
474

Aviation and antitrust in the United States.

Prominski, Henry. J. January 1961 (has links)
Historically the United States has been built upon the principles of free competitive enterprise. Americans pride themselves that rivalry in production and markets has created the richest country in the world. Free competition has directed the essential energies of the workers to world leadership in industrial productivity and technological development. Political and social freedoms are dependent upon a private enterprise economy which has brought about the best possible product at the best margin of profit including the most rapid rate of growth commersurate with the ability of the populous to absorb technological advancement.
475

The grant of passage and exercise of commercial rights in international air transport.

Vlasic, Ivan. January 1955 (has links)
Ever since civilization exist, the notion of exchange and of transporting has been one of the outstanding elements of life in human society. One may say that the development of civilization and the evolution of all its main attributes (economic, political, cultural, and social) rest upon man-made means of communication. Among the many factors which have conditioned and at the same time shaped the history of mankind, transportation and communication have been not causes, but certainly essential elements of the progressive development of society.
476

The air carrier’s liability in cases of unknown cause of damage in international air law.

Hjalsted, Finn. January 1960 (has links)
In the law of compensation it is generally recognized that a causal relation must exist between the loss or damage for which compensation is sought and the act or omission of which complaint is made. If the person suffering damage cannot establish such relationship one of the main conditions for receiving compensation is unfulfilled. In this study, however, the expression "cause of damage" has another causal relation in view. It concerns the chain of causation leading up to the phenomenon, for example an accident, which is the established cause of the damage.
477

Effect of organic amendments on soil atmosphere

Hossain, Mohamed Sarwar. January 2001 (has links)
Gaseous movement in soil varies with soil's physicochemical properties and biochemical oxygen demand. Diffusivity patterns of four different types of soil (sand, silt, sandy silt, and clay) were examined and sand have shown the highest rate of diffusivity increase with the decreasing soil moisture content. Raw cow manure was then added to the sandy soil at four different rates 0, 20,40, and 80 Mg/ha. Depletion of soil oxygen and changes of carbon dioxide and ammonia for different concentrations were compared against the control. The oxygen depletion or carbon dioxide and ammonia accumulation reached the highest level at initial 16 hour followed by gradual reversal to a steady state. A significant amount of oxygen depletion was noticed with the different concentration levels. Oxygen depletion had shown an oscillatory behavior towards zero. Among different concentrations that of 40 Mg/ha showed the highest oscillatory behavior, but the shortest time was required to recover its original oxygen level. Thus the 40 Mg/ha application of organic matter is seems to be the optimum level for sandy soil.
478

An Assessment of the Contribution of Micro-scale Activities to Personal Pollution Exposure in Commuting Micro-environments

Shrestha, Kreepa January 2009 (has links)
Exposure to traffic pollution has become an increasing concern to public health. A number of studies have demonstrated that the air people breathe in while in transportation is particularly unsafe due to the high concentrations of carbon monoxide (CO), suspended particles (PM10, PM2.5 and PM1) and ultrafine particles (UFPs). Some studies have suggested that peak exposures of approximately one hour- a typical time spent in a transport micro-environment- may have more damaging health effects than the 24- hour sampling times current standards apply to Despite the widespread interest in health effects from exposure to traffic pollutants, there is a distinct lack of research of this kind in New Zealand. The research presented in this thesis was designed to assess the effect of traffic emissions on personal exposure. More specifically, this project intended to examine how exposures differed on different modes of transport and also to investigate the extent to which transport micro-environments such as car parks, bus stops and metro stations contributed to personal exposure levels. This study is the first of its type in New Zealand, which simultaneously monitored CO, PM and UFP concentrations in the transport micro-environment. Vehicular traffic emissions were shown to be a significant source of air pollution in populated urban areas, especially in the transport microenvironment. This results of this study showed that the mode of transport is a significant determinant of personal exposure to pollutants. The information gathered indicated slightly different results for Christchurch and Auckland, possibly due to variations in background levels, traffic counts and meteorological conditions at the time of monitoring. Results from the research also showed that built transport microenvironments could experience extremely high levels of pollutant exposures. Although commuters spend a relatively short time in such environments, such short-term peak exposures could contribute significantly to adverse health effects. The results presented here have relevance for both public health and for policies aimed at reducing human exposures to traffic-related air pollution. It is imperative to incorporate policies which ensure that such built environments are as safe as possible in terms of keeping exposure levels at a minimum.
479

Digital simulations of the closed part of a diesel engine cycle considering dissociation and equilibrium thermodynamics

Saadawi, H. N. H. January 1975 (has links)
No description available.
480

The application of computational fluid dynamics to the prediction of regenerated noise in ventilation systems

Mak, Cheuk-Ming January 1996 (has links)
No description available.

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