Un proyecto de construcción tiene como principales objetivos la rentabilidad y la obtención de utilidad. En la actualidad, en edificaciones de gran altura estos vienen siendo afectados por exceso de consumo de material no planificado, es decir el sobredesperdicio. La presente tesis tiene como finalidad analizar y darle seguimiento al flujo interno de dos de los materiales más incidentes en la construcción de una edificación: cemento y cerámico, con el fin de plantear como propuesta de mejora un procedimiento de trabajo que beneficie a la reducción de los sobredesperdicios. La metodología que se utilizó para obtener los datos del análisis consistió en el método de investigación de campo, dado que la recolección de datos se llevó a cabo directamente de tres proyectos de edificación mayor a los quince pisos de altura ubicados en la ciudad de Lima Metropolitana. Se hizo un análisis y seguimiento al flujo de distribución del material y de esta manera se obtiene, resultados que permiten determinar el problema raíz para poder analizarlo e implementar la mejor alternativa para reducir o eliminar estos factores que conllevan al aumento del desperdicio. Se concluye que las causas críticas o principales de estos sobredesperdicios son la falta de seguimiento, planificación, gestión y comunicación que se da en la mayoría de empresas constructoras. Luego de un análisis se establece un procedimiento de trabajo destinado al desarrollo de una actividad con el objetivo principal de disminuir los sobredesperdicios de los materiales identificados en su flujo de distribución. / A construction project has as its main objectives the profitability and the obtaining of utility. Currently, in high-rise buildings these are being affected by excess consumption of unplanned, over-wasted material. The purpose of this thesis is to analyze and monitor the internal flow of two of the most incidental materials in the construction of a building, cement and ceramic, in order to propose as a proposal for improvement a work procedure that benefits the reduction of the over-waste. The methodology that was used to obtain the data of the analysis consisted of the field research method, given that the data collection was carried out directly from three building projects greater than fifteen floors high located in the city of Metropolitan Lima An analysis and monitoring of the distribution flow of the material was made and, in this way, results are obtained that allow the root problem to be determined in order to analyze it and implement the best alternative to reduce or eliminate these factors that lead to an increase in waste. It is concluded that the critical or main causes of these over-waste are the lack of monitoring, planning, management and communication that occurs in most construction companies, thereby establishing a work procedure for the development of an activity with the main objective to reduce the over-waste of the materials identified in its distribution flow. / Tesis

Traditional aerosol samplers are limited in their abilities to collect large quantities of particulate matter due to their low flow rates, high pressure drops, and are noise intrusiveness. The goal of this study was to develop an alternate aerosol sampler using electrostatic precipitation technology that was safe and not noise intrusive to be deployed in homes. The O-Ion B-1000 was selected as the most suitable electrostatic precipitator (ESP) for achieving the goal of this study because of its affordability, the design of its collection electrode and its high flow rate. The collection efficiency of the ESP was assessed for three aerosols; Arizona Road Dust (ARD), NaCl and diesel fumes. ARD was found to have the highest average collection efficiency (65%) followed by NaCl (43%) and lastly diesel fumes (41%). A method for recovering the particulate matter deposited on the collection electrode was developed. The dust collected on the electrode was recovered onto polyvinyl chloride (PVC) filters moistened with deionized water. Additionally, the recovery of the three test aerosols, ARD, NaCl, and diesel fumes, from the collection electrode was assessed. A gravimetric analysis was done to determine the amount of dust recovered. The collection efficiency was used to calculate the amount of mass expected on the filter for a particular aerosol. NaCl had the highest recovery at 95% recovery, followed by ARD (73%) and lastly diesel fumes (50%). Two identical ESPs were also deployed in an office and in a bedroom, 104.47 mg and 9.64 mg of particulate matter (PM) was recovered respectively. The noise and ozone level produced by the ESP was evaluated to determine the ESP’s viability as a household aerosol sampler. The ESP’s high setting had a noise level of 45.8 dB and ozone generation rate of 0.036 mg/min. The results of the calculation showed that in an averaged size unventilated room (6.10 m × 6.10 m × 2.44 m), it would take 6 hours and 53 minutes for the ozone levels to reach the recommended maximum exposure limits per National Ambient Air Quality Standards (NAAQS). Additionally, a ventilation of 230 L/min is needed in order to prevent the ozone levels generated by the ESP from exceeding maximum exposure limits per NAAQS. Overall, the O-Ion B-1000 met the criteria of collecting 1 mg of PM in a 24 hour sampling for ARD and NaCl. Diesel fumes however, required 30 hours to collect 1 mg of PM. The noise levels generated by the ESP set on high was one dB above the Environmental Protection Agency (EPA) standards for indoor noise limit. However, the noise is proportional to inverse distance squared; the ESP should not pose a problem during household deployment. Ozone generated by the ESP was also found to be below 0.07 ppm as set by the EPA with an average ventilation of 230 L/min. The average ventilation of a household is 1500 L/min, thus the ozone generated by the ESP would not surpass 0.07 ppm. However, the ESP should not be deployed in unventilated rooms for a period of more than 6 hours and 53 minutes.

No description available.

Function-based experimental evaluation in the development of interventions and treatment plans continue to be under-utilized within the school setting (Hanley, Iwata, & McCord, 2003) despite federal mandates to use functional behavioral assessments and positive behavioral interventions with students with disabilities (IDEIA, 2004). Gann, Ferro, Umbreit, & Liaupsin, (2014) found that teachers prefer function-based interventions based in Applied Behavior Analytic principles when implemented effectively and with fidelity, over traditional classroom practices. As such, data collection and data analysis is critical to promote valid, reliable, and socially acceptable behavior change. Some researchers have advocated for the use of advanced technological or computerized tools to streamline and systematize data collection for wider-spread use (Vollmer, Sloman & Pipken, 2008; Kahng & Iwata, 1998), but there is little in the literature to suggest what might be the most beneficial data collection modalities and methods for school professionals who work with students who exhibit challenging behaviors. A few studies have shown positive effects of using electronic technology to collect behavioral data by researchers collecting direct observation data (Graylee et al, 2006), and measures of social skills development (Sarkar et.al, 2006) as well as teachers implementing discrete trial training (Tarbox et al, 2010). Hunter (2003) found that teachers were more likely to use interventions that they liked and that were subjectively time-efficient; often, convenience and experience factors played a role in resistance to implementing evidence-based interventions (Hunter, 2003). The purpose of Study One was to better understand the current data collection practices and needs of school professionals who frequently treat students with challenging behaviors in the classroom. The purpose of Study Two was to compare the efficiency of graphing using an iPad application, Catalyst®, to paper and pencil data collection with behavioral specialists (school professionals and behavioral clinicians), and to see what preferences were generated based upon practice with both tools. Study One’s results suggested that there was interest in data collection tools that are time-efficient and which provide automatized graphical or summarized data. Study Two findings suggested that there was minimal difference between latencies to graphing data session-by-session, but that school professionals exhibited a preference for the iPad application modality. Acceptability self-report ratings for either modality by school professionals also showed initial corroboration with self-report ratings of work load associated with technology skills. Implications for data collection modality preference and use in school settings as well as future directions for research are further discussed.

Alcohol expectancies have been shown to be predictive of risk for alcohol problems. Experimental research studies have challenged participants' expectancies with the end result demonstrating a mediational effect on participant drinking. Cognitive research using priming and word recognition tasks have led to the theory that expectancies operate in an associative network. Using dissimilarities information this network has been mapped using multidimensional scaling. The current techniques for collecting dissimilarities information directly in alcohol expectancy research has been limited to the use of the paired comparisons tasks. In order to investigate the utility of a different similarities task a comparison was made between a card sorting task and paired comparisons. The overall comparisons of matrices and Individual Difference Scaling (INDSCAL; Carroll & Chang, 1970) results followed the expected trends and generally supported the hypotheses that the two methods would provide essentially the same information. However, a possible method effect for gender was observed. The method effect was seen when comparing across methods within the females dichotomized by drinker category. Further studies are necessary to replicate these findings and to attempt to identify which method has the effect.

This thesis work was carried out at a manufacturing plant in Sweden and they are producing a different kind of components for the company. This thesis work was about an assembly line in the factory where they needed a simulation model in Plant Simulation. The main goal of the thesis work was to break down different losses, building a simulation model and compare it if the results are the same as the real assembly line with similar characteristics. The assembly line consists of several workers and AGVs with three u-shaped lines. Frame of reference describes topics that are related to the project. It consists of theories about simulation, collection of data, the bottleneck of the production line, integrated manufacturing systems and flexible workers. The chapter of literature review presents researches on similar studies, in this case, simulation, bottleneck, and workers in the assembly line. In the chapter Simulation model, there will be an explanation of how data got collected, the transformation of raw data and building a simulation model of it. Also the way the model was programmed and built. Result and analysis, the focus is to analyze the throughput, lead time and work in process parameters to get a steady state graph and confidence interval. This chapter also shows how long time does the model need for warm up and how many replications it needs to be more accurate. Discussion part reviews the whole project and its progress. It covers problems that authors got through, at the same time learning and getting a new experience of tools and methods that were used in this project.

Modern civil structures as well as loads on them are still too complex to be accurately modeled or simulated. Therefore, structural failures and structural defects are NOT uncommon! More and more full-scale structural monitoring systems have been deployed in order to monitor how structures behave under various loading conditions. This research focuses on how to maximise benefits from such full-scale measurements by employing advanced digital signal processing techniques. This study is based on accelerometer and GPS data collected on three very different structures, namely, the steel tower in Tokyo, the long and slender suspension bridge in Hong Kong, and the tall office tower in Sydney, under a range of loading conditions, i.e., typhoon, earthquake, heavy traffic, and small scale wind. Systematic analysis of accelerometer and GPS data has demonstrated that the two sensors complement each other in monitoring the static, quasi-static and dynamic movements of the structures. It has also been confirmed that the Finite Element Model could under-estimate the natural frequencies of structures by more than 40% in some case. The effectiveness of using wavelet to de-noise GPS measurement has been demonstrated. The weakness and strengths of accelerometer and GPS have been identified and framework has been developed on how to integrate the two as well as how to optimize the integration. The three-dimensional spectral analysis framework has been developed which can track the temporal evolution of all the frequency components and effectively represents the result in the 3D spectrogram of frequency, time and magnitude. The dominant frequency can also be tracked on the 3D mesh to vividly illustrate the damping signature of the structure. The frequency domain coherent analysis based on this 3D analysis framework can further enhance the detection of common signals between sensors. The developed framework can significantly improve the visualized performance of the integrated system without increasing hardware costs. Indoor experiments have shown the excellent characteristics of the optical fibre Bragg gratings (FBGs) for deformation monitoring. Innovative and low-cost approach has been developed to measure the shift of FBG???s central wavelength. Furthermore, a schematic design has been completed to multiplex FBGs in order to enable distributed monitoring. In collaboration with the University of Sydney, the first Australian full-scale structural monitoring system of GPS and accelerometer has been deployed on the Latitude Tower in Sydney to support current and future research.

This thesis seeks to examine the nineteenth-century art collections and architectural style of the original buildings at the University of Sydney in order to demonstrate ways in which visual material may be employed to shape public perception of an institution. I shall argue that the architectural style of the original university buildings was specifically chosen with particular aims which extended beyond the mere establishment of a tertiary institution for the colony. I will also argue that the style shaped the character of the institution, contributed to the maintenance of law and order in the colony, linked the colony more firmly than hitherto to the mother country and provided social benefits for the founders of the institution. The instant history and character thus imposed upon the institution was reinforced by the assembly of a portrait collection in emulation of other collections of portraits at leading institutions of the colony and the mother country, including the Oxbridge universities. Once the building proclaimed that the institution was comparable with the great universities of the world, the subjects of the portraits at the university could be placed in the class of founders of a great historical institution, thus at the same time enhancing the reputation of the institution and the individuals. The construction of an indentity through visual images was extended by the benefactions of Sir Charles Nicholson, the principal donor of works of art to the university in the nineteenth century. I argue that his intentions in relation to his collections were didactic but were also concerned with the entrenchment of the imperial hegemony over the colony, and again with the enhancement of his personal repuatation. This analysis shows how, by a complex of personal ambition and aspiration for the colony, the style of the buildings and the art collections formed were used to establish the colony as civilized and the new university as a bastion of English tradition.

During the period of internship at the Art Gallery of New South Wales (March, 1982 - January 1983), I had the opportunity to work on paintings from the 20th, 19th, 10th, and 17th centuries. Some of the paintings were privately owned, and usually arrived at the Gallery in much worse condition than any of the Gallery's paintings, therefore I had the chance to carry out major treatments as well as the routine minor treatments associated with the maintenance of a collection. The atmosphere at the Gallery conservation facility is a healthy one. The laboratory supports five fulltime conservators (Alan Lloyd, Peter Gill, Gill McMillan, Susie Bioletti, and Ranson Davies). All the members of staff were willing participants in helping and advising me during my period of internship. The contact with so many points of view and attitudes was instrumental in maintaining a positive and constructive attitude toward the profession. Cathy Lillico (conservator for the Regional Galleries) and Anne Gaulton were also working in the laboratory during my period of internship. Both took an active interest in my work at the Gallery. The work emphasis at the Gallery was placed on practical experience with paintings conservation, and a wide range of techniques and attitudes were considered and implemented. The period was also an opportunity to become involved in other aspects of conservation work apart from treatments. The transport, display, lighting, packaging and handling of painttings are important responsibilities for conservation staff, and I participated in them whenever possible. The routine examination of the Gallery collection and monitoring the light and temperature fluctuations within the Gallery environment were also part of my duties. The exposure also gave me the opportunity to answer public telephone enquiries and participate in advising the public on conservation during the Thursday morning open house, when the public is allowed to bring their works into the Gallery for advice from curatorial and conservation staff. I consider it a valuable and worthwhile exposure to the workings of a major institution. The Gallery conservation facilities include a studio and darkroom that are well equipped for conservation photography. I chose to take advantage of those facilities to improve my standard of photography and increase my understanding of the application of photography to the examination of paintings. The Gallery was very generous to allow me the use of film materials during my period of internship. All the plates and slides in this presentation were photographed, developed, and printed by myself, with the exception of color processing, using the conservation department facilities. Internships are not a tradition within the Art Gallery Conservation Department. Because of this, there is not an established program or itinerary for interns to follow. I am grateful to the entire staff of the conservation department, especially Alan Lloyd, for their support and encouragement in shaping an interesting and rewarding internship. I hope the opportunity will be made available to others who wish to pursue the profession of conservation. Some of the material presented in this dissertation is included for my own reference. This includes the TABLES 1-4 and some of the basic information under the conservation photography section dealing with normal and raking light illumination techniques.

Thesis (Ph. D.)--University of Hong Kong, 2006. / Title proper from title frame. Also available in printed format.