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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.
21

Rockfall Modelling Parameters and the Control Barrier at Stockton Mine, New Zealand

Farrand, Steven Wesley January 2007 (has links)
Solid Energy New Zealand plans to mine a 6 to 10m thick coal seam below the Mt. Augustus and Mt. Fredrick ridgeline at Stockton Mine near Westport, NZ. The coal is covered by up to 30m of overburden, which requires removal to access 4 million tones of high quality coal. However, the Coal Mining Lease boundary (CML) is located just below the basal coal measures and the neighbouring land is owned by the Department of Conservation (DoC). In addition, the neighbouring DoC estate is Powelliphanta Augustus snail habitat. It is necessary to remove the overburden without releasing any material above natural discharge levels onto the DoC land. In order to control the rockfall risk at the site, the largest design-build rockfall protection project in the southern hemisphere was constructed using a high-capacity dynamic rockfall barrier installed along the length of the ridgeline. During the design phase of the project, it was evident that current methods to determine the coefficient of restitution (normal and tangential) are subjectively based on the designer's judgement. Currently, there is limited quantitative information available for the determination of dampening coefficients (restitution coefficients) for use in rockfall computer simulation programs. Accurate parameters are necessary for the design and dimensioning of rockfall protection structures. This project investigates an objective method to calculate these parameters for use in rockfall modelling based on field measurements of the slope. The first stage of the project is a review of current rockfall simulation programs and rockfall mechanics. This is followed by a review of the design of the rockfall protection measures installed at Stockton Mine. The site is revisited and detailed investigations are performed to further classify the slope conditions and observe current ridgeline mining methodology and effectiveness. Included in this are detailed geotechnical investigations of the slope (soil and rock) materials. The majority of the slopes below the ridgeline mining are heavily vegetated. This project investigates the interrelation of rockfall and vegetation. A series of laboratory tests are conducted using rock and soil samples from the ridgeline-mining project. Overburden samples were cut into spheres and cubes to investigate the influence of shape and rockfall trajectory. A rockfall simulation device was fabricated to drop samples of various shapes onto rock slabs and soil beds. The drop test trajectories were filmed using high-speed video recordings and used for rebound calculations. The purpose of these tests was to observe the effect of impact angle (slope angle) and shape on the coefficients of restitution. Also investigated was the influence of soil moisture and density on rockfall impacts. Observations from the field investigations and laboratory experiments were then used to calibrate the original rockfall design parameters at the site. This included comparing several common commercially available rockfall simulation programs for trajectory analysis. Recent rockfall events that have occurred during the ridgeline mining were compared to original estimates of volume and block-size to actual rockfall events (both natural and mining-induced).
22

Application of reinforcement-sampling procedures with formermental patients in a community setting

Dickinson, Brett J. 01 January 1976 (has links)
Prompts and instructions and reinforcer-sampling procedures were used in an attempt to increase recreational activity attendance of eight former mental patients in a community setting. A multiple baseline design with a reversal component was used to assess the effectiveness of the procedures. Data indicated that there was no increase in the time subjects spent outside of their residential facility, or in the number of recreational activities they attended in the community. There was an increase in the variety of the activities attended, but this increase was not maintained. Future research suggestions for increasing activity attendance are offered, including the effects of exposure to activities with friends and increasing the time spent in reinforcer-sampling activities.
23

Informal dramatization in the religious education of children in Stockton

Murray, Louise Marie 01 January 1955 (has links)
The problems concerned with this essay were: (1) To what extent is the method of informal dramatization being used in the religious education of children of various churches of Stockton?; (2) What are the values that seem to be in the use of it?; (3) How can a program of training be projected for increasing the extent and quality of the use of this method in the churches? The ultimate objectives that evolve in this investigation are: (1) To encourage the use of the method of informal dramatization in the religious education of children in Stockton and elsewhere.; (2) To develop a proposed training program in this field.
24

Enteric infections in Stockton, California : with special reference to the genus Campylobacter

Hathorn, Tom Edward 01 January 1983 (has links)
During the last two or three years, the three largest hospitals in Stockton (St. Joseph’s, Dameron and San Joaquin General Hospitals) have modified their procedures to include the search for Campylobacter. On the other hand, the incidence of Yersinia in California is unknown, as most clinical laboratories do not specifically culture for it. There have been only a few reports of Yersinia in this state (personal communication of Dennis Ferrero, Director of the San Joaquin County Public Health Laboratory). This study has a threefold purpose: to investigate the incidences of Campylobacter and Yersinia, especially in relation to the incidence of Salmonella and Shigella, to study the biochemical and antibiogram characteristics of enteric isolates, particularly the “newer” pathogens, and to review the state of routine culture methods and assess their adequacy.
25

A survey to determine the status of health teaching in the elementary schools of the Stockton Unified School District

Evans, Howard Franklin 01 January 1952 (has links)
The purpose of this study and report is to determine the present status of health teaching in the elementary schools of the Stockton Unified School District. The results of this study should serve to stimulate better teaching methods and to indicate further study toward the improvement of health teaching curriculum. Health instruction has been a part of school curricula for many years. This study will locate the subject area in which health teaching in the Stockton elementary schools. It is not the intent, however, that this report go into the detail of curriculum revision and improvement but that it adhere to the establishment of the present status of health teaching in the elementary schools of the Stockton Unified School District.
26

Source Materials on the History and Development of the San Joaquin River and the Stockton Deep Water Project

Wenger, J. Norman 01 January 1931 (has links) (PDF)
It has been the object of the writer to compile as complete a bibliography, as the time allowed, on the History of the Deep Water Project at Stockton, California. ... The thesis proper has been directed to cover the major attempts to deepen the water channel from Stockton to San Francisco. Much of this material is not in a form to be readily accessible to the layman so I have included a great deal of it in the form of an Appendix; thus bringing it together, but not making it necessary for the reader to review it unless he or she feels the need of so doing. I believe that the field of research regarding this problem has merely been "scratched along the surface," and it offers to the student and the community at large an opportunity to study "conflicting interests" and economic history in general.
27

The development of character education through the social studies and school activities in the junior high schools : with particular reference to Stanford Junior High School curriculum and student government in Sacramento

Everett, Lena Barnum 01 January 1949 (has links) (PDF)
It is the purpose of this thesis to develop a great- er interest and effort in character education in the school, the home and the church and to show nome techniques which have proved successful in the lives of the students of Junior high schools, especially at Stanford Junior High School in Sacramento.
28

Relation between tested intelligence and length of institutionalization in children

Sanders, Janet Eileen 01 January 1971 (has links)
The purpose of the present study was to examine the relationship between the tested intelligence of children in a public children’s shelter and the length of time these children had been institutionalized.
29

A survey study of the curriculum of the Conservatory of Music, University of the Pacific, Stockton, California, from 1924 to 1964

Liedstrand, Alvin Emil 01 January 1965 (has links) (PDF)
The purpose of this study is to investigate the history and development of the curriculum of the Conservatory of Music of the University of the Pacific from 1924 to 1954, and to indicate change as they occurred. The beginning point of this study was chosen because it coincides with the move of the institution from San Jose, California, to its present location in Stockton, California. Specific problems to be investigated are: (1) The history of the Conservatory of Music.; (2) Curriculum changes from 1924 to 1964 as revealed in selected Bulletins of the University of the Pacific.; (3) The Aims and Objectives of the Conservatory from 1924 to 1964 as revealed in selected Bulletins of the University of the Pacific. An understanding of the development of the past curriculum may aid in the future evaluation and development of the curriculum of the Controversy.
30

Pupil retardation in the elementary public schools of Stockton,California

McLerie, Elsie Copeman 01 January 1931 (has links) (PDF)
The problem is this study is to locate and analyze the retarded pupils in the Stockton Elementary Public Schools. A retarded pupil is defined as one who is eight years or over in the first grade; nine years or over in the second grade; ten years or over in the third grade --- and so on. The following chart shows the ages that are considered normal for each grade: [see PDF]

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