cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.14457/cu.the.2011.1373
title: Modeling study in two-dimensional mathematical model of oxidative coupling of methane in fixed bed and membrane reactor

description: The oxidative coupling of methane (OCM) in a fixed bed reactor (FBR) and a membrane reactor (MR) were studied by two-dimensional numerical simulations. In FBR, a suitable catalyst was selected by comparing between Li/MgO, La2O3/CaO and Na-W-Mn/SiO2 catalysts. The simulation results indicated that Na-W-Mn/SiO2 catalyst offers the best performances. Different operating conditions, such as temperature, CH4/O2 ratio and GHSV were studied. Increasing operating temperature resulted in increasing of CH4 conversion but decreasing C2 selectivity. However, the effects of CH4/O2 ratio and GHSV showed the contrary results. In MR, the suitable membranes were selected by comparing between porous Membranox, a dense BSCFO and LSGFO membrane. Simulation results indicated that BSCFO membrane offers the best performances. Various operating conditions, such as methane flow rate, air flow rate and temperature have influences on performance of OCM reaction. Increasing operating temperature resulted in increasing of CH4 conversion and decreasing of C2 selectivity. Moreover, increasing of methane feed flow rate resulted in lower CH4 conversion but increased C2 selectivity. The effect of air flow rate showed the contrary results. When comparing the performance between FBR and MR, it was found that the yield of MR was higher than FBR. The temperature profiles of FBR and MR revealed that significant hot spot temperature was observed for the FBR unlike that of the MR. Optimum dimension of MR was 0.018 m diameter and 0.2 m length. The best performance was found at GHSV of 38904.54 h-1 and temperature of 1073 K, offering CH4 conversion of 43.713 %, C2 selectivity of 61.352 % and C2 yield of 26.82 %.
DOI: 10.17171/1-13-33334-1
title: WORLD GRIDDED-DATASET ECHAM5 4000BP TIME-RANGE-VALUES 2thPercentile SURFACE-PRESSURE

description: Climate Models
DOI: 10.17171/1-13-33335-1
title: WORLD GRIDDED-DATASET ECHAM5 4000BP TIME-RANGE-VALUES 2thPercentile TOTAL-CLOUD-COVER

description: Climate Models
DOI: 10.17171/1-13-33336-1
title: WORLD GRIDDED-DATASET ECHAM5 4000BP TIME-RANGE-VALUES 2thPercentile TOTAL-PRECIPITATION

description: Climate Models
DOI: 10.17171/1-13-33337-1
title: WORLD GRIDDED-DATASET ECHAM5 4000BP TIME-RANGE-VALUES 5thPercentile 10M-WIND-DIRECTION

description: Climate Models
DOI: 10.17171/1-13-33338-1
title: WORLD GRIDDED-DATASET ECHAM5 4000BP TIME-RANGE-VALUES 5thPercentile 10M-WINDSPEED

description: Climate Models
DOI: 10.17171/1-13-33339-1
title: WORLD GRIDDED-DATASET ECHAM5 4000BP TIME-RANGE-VALUES 5thPercentile 2M-DEW-POINT-TEMPERATURE

description: Climate Models
DOI: 10.17171/1-13-33340-1
title: WORLD GRIDDED-DATASET ECHAM5 4000BP TIME-RANGE-VALUES 5thPercentile 2M-RELATIVE-HUMIDITY

description: Climate Models
DOI: 10.17171/1-13-33341-1
title: WORLD GRIDDED-DATASET ECHAM5 4000BP TIME-RANGE-VALUES 5thPercentile 2M-TEMPERATURE

description: Climate Models
DOI: 10.17171/1-13-34053-1
title: WORLD GRIDDED-DATASET ECHAM5 5000BP TIME-RANGE-VALUES 95thPercentile ICE-COVER

description: Climate Models
DOI: 10.17171/1-13-34054-1
title: WORLD GRIDDED-DATASET ECHAM5 5000BP TIME-RANGE-VALUES 95thPercentile LATENT-HEAT-FLUX

description: Climate Models
DOI: 10.17171/1-13-34055-1
title: WORLD GRIDDED-DATASET ECHAM5 5000BP TIME-RANGE-VALUES 95thPercentile MEAN-SEA-LEVEL-PRESSURE

description: Climate Models
DOI: 10.17171/1-13-34056-1
title: WORLD GRIDDED-DATASET ECHAM5 5000BP TIME-RANGE-VALUES 95thPercentile SENSIBLE-HEAT-FLUX

description: Climate Models
DOI: 10.17171/1-13-34057-1
title: WORLD GRIDDED-DATASET ECHAM5 5000BP TIME-RANGE-VALUES 95thPercentile SNOW-DEPTH

description: Climate Models
DOI: 10.17171/1-13-34058-1
title: WORLD GRIDDED-DATASET ECHAM5 5000BP TIME-RANGE-VALUES 95thPercentile SNOW-FALL

description: Climate Models
DOI: 10.17171/1-13-34059-1
title: WORLD GRIDDED-DATASET ECHAM5 5000BP TIME-RANGE-VALUES 95thPercentile SURFACE-ALBEDO

description: Climate Models
DOI: 10.17171/1-13-34060-1
title: WORLD GRIDDED-DATASET ECHAM5 5000BP TIME-RANGE-VALUES 95thPercentile SURFACE-PRESSURE

description: Climate Models
DOI: 10.14457/cu.the.2011.1374
title: Characteristics and catalytic properties of spherical zirconia-supported cobalt catalyst for methanation

description: This thesis focused on characteristics and catalytic properties of spherical zirconia-supported cobalt catalyst for methanation. The study was divided into two parts. In the first part, different amounts of cobalt were loaded on the spherical zirconia supports. The catalysts contained different Co loadings, i.e., 10 wt%, 15 wt% and 20 wt%. The results showed that the physical characteristics of 15 wt% and 20 wt% are similar which were better than those of 10 wt%. The 20 wt% of cobalt exhibited the highest reaction rate because of probably largest active metals on surface catalyst. It indicated that the amounts of different cobalt metal had distinctive effect on catalytic properties. In the second part, the study was conducted to raise the performance of spherical zirconia-supported cobalt catalyst by adding a prometer; cerium metal (Ce) onto the spherical zirconia support. This part focused on the different preparation method of cobalt catalyst between sequential-impregnation (Co/Ce-ZrO2). and co-impregnation (Co-Ce/ZrO2). The results showed that the physical characteristics of both catalysts are similar, but the sequential-impregnation exhibited higher reaction rate and % CO2 conversion than the co-impregnation. This was because of the dispersion of cobalt metal on to ceria-zirconia supports and active site molecule on surface of cobalt catalyst of the sequential-impregnation were higher than that of the co-impregnation. Besides, it was found that adding cerium metal can improve reducibility of spherical zirconia-supported cobalt catalyst based on TPR study.
DOI: 10.14457/cu.the.2011.1375
title: Simultaneous production of hydrogen and nanosized zinc oxide by hydrolysis of zinc vapor

description: Hydrogen and zinc oxide (ZnO) nanoparticles were simultaneously produced by the steam-hydrolysis of zinc vapor. This process was experimentally demonstrated using a tubular flow reactor. Zinc vapor was evaporated at temperature below its boiling point and carried to the reaction zone by an inert carrier gas. Steam was generated in separated vessel and fed co-currently with the zinc vapor into the reaction zone. Solid products collected by filter downstream were characterized by X-ray diffraction and scanning electron microscopy (SEM) while the gas was periodically sampled and analyzed by gas chromatography (GC). In this research influence of process parameters including zinc evaporation temperature, reaction temperature, flow rate of zinc vapor, and resident time were investigated. The experimental results show that low zinc evaporation temperature resulted in decreased yield of H2. By increasing the reaction temperature from 500oC to 900oC, the yield of H2 increased from 24.4% to 59.71%, while the fraction of ZnO within the collected products increased from 16.9% to 30.71 %. Higher carrier gas flow rate resulted in lower achieved yield of H2 and smaller particle size. The highest yield of H2 production achieved was 72.59% with respect to theoretical value.
DOI: 10.14457/cu.the.2011.1376
title: Process design for new entrepreneur creation program

description: To study the standard instructional design process to design the effective course module for NEC program. The extended research on its characteristics will be necessary. The objectives of this research are to increase the performance of NEC program taken place in Research Unit for Industrial Management and Technology, Chulalongkorn University (IMTCU) by applying the standard instructional design process to reconstruct the course modules in order to measure against the NEC program objectives and participant’s requirements. The standard instructional design process consisted of the analysis, design, development and evaluation. The analysis of current NEC program consisted of the data collection by participative observation, pilot study and questionnaires, the data analysis and interpretation is done by using affinity diagram, statistic test, MBO and QFD to determine the influence factors and deploy the relationship between influence factors and improvement ideas in order to find the significant course module characteristics. The new course module design and development is done by generating the concept along the module characteristics and using the evaluation matrix to select the best concept. Then develop the suggested course module along the selected concept. After finish the course module design, it will be evaluated by project leader and experts from department of Industrial Promotion Center in order to verify the suggested course module performance. The expert evaluation and recommend explained that the standard instructional design process for NEC program seem to be more useful and possible in practice, and the suggested course module will be considering for the next year NEC program in the discussion meeting between NEC project team (IMTCU) and the Department of Industrial Promotion Center. In the expert’s viewpoint, it is verified that the standard instructional design process has improved the result of the NEC Program performance.
DOI: 10.14457/cu.the.2011.1377
title: Defect reduction in vintage car repainting

description: To reduce blistering/solvent boil defective and dust contamination defective in vintage car repainting. From the research, the both defect rates are 100% that the major causes of the defects result from dirty equipment and wrong using of equipment and material that cause waste in rework cost in terms of both time and expense including re-inspection cost. These 5 steps are exercised in this research including defining phase, measurement phase, analysis phase, improvement phase and control phase respectively. This research studied in details of the production process to find factors that cause both defects in the measurement and analysis phases. The main factors were selected and analysed by Failure Mode and Effect Analysis (FMEA) Then, those factors were tested by statistic and found the suitable parameter settings of the process by Design of Experiment (DOE). Having found the appropriate parameters, the process was controlled to protect reoccurrence problems. After the improvement of painting processes, it is found that the blistering/solvent boil defect is reduced 81.5% and dust contamination is reduced 59.02% of the defect before the improvement.
DOI: 10.14457/cu.the.2011.1378
title: Large curvature analysis of two-dimensional linear elastic frames by direct stiffness method /|cJongaphonh Douanevanh

description: This thesis presents an efficient semi-analytical technique based upon the co-rotational formulation and the direct stiffness strategy for large displacement and rotation analysis of two-dimensional, linearly elastic, extensible frames of general geometries and subjected to general loading conditions. The technique exploits the standard direct stiffness procedure to systematically set up the governing equations for the entire structure. In the formulation, a set of nonlinear differential equations derived from the exact curvature-displacement relationship is employed to construct an equivalent set of nonlinear algebraic equations governing the behavior of a straight prismatic member. Such governing equations are employed first to obtain the force-displacement relation and the corresponding gradient matrix for a member in its co-rotational coordinate system. Such basic results are then utilized along with the co-rotational approach to develop the exact element tangent stiffness matrix and the force-displacement relation for a generic member. The direct assembly algorithm is then used to obtain the exact tangent stiffness matrix and exact load residuals for the structure. These two components are essential in the solution procedure for a large system of nonlinear equations by Newton-Raphson iterative scheme. Several examples have been selected in the numerical experiments to verify both the formulation and implementation and it can be concluded that the proposed technique yields numerical results comparable to analytical solutions without refining the discretization.
DOI: 10.17171/1-13-33342-1
title: WORLD GRIDDED-DATASET ECHAM5 4000BP TIME-RANGE-VALUES 5thPercentile EVAPORATION

description: Climate Models
DOI: 10.17171/1-13-33343-1
title: WORLD GRIDDED-DATASET ECHAM5 4000BP TIME-RANGE-VALUES 5thPercentile ICE-COVER

description: Climate Models
DOI: 10.17171/1-13-33344-1
title: WORLD GRIDDED-DATASET ECHAM5 4000BP TIME-RANGE-VALUES 5thPercentile LATENT-HEAT-FLUX

description: Climate Models
DOI: 10.17171/1-13-33345-1
title: WORLD GRIDDED-DATASET ECHAM5 4000BP TIME-RANGE-VALUES 5thPercentile MEAN-SEA-LEVEL-PRESSURE

description: Climate Models
DOI: 10.17171/1-13-33346-1
title: WORLD GRIDDED-DATASET ECHAM5 4000BP TIME-RANGE-VALUES 5thPercentile SENSIBLE-HEAT-FLUX

description: Climate Models
DOI: 10.17171/1-13-33347-1
title: WORLD GRIDDED-DATASET ECHAM5 4000BP TIME-RANGE-VALUES 5thPercentile SNOW-DEPTH

description: Climate Models
DOI: 10.17171/1-13-33348-1
title: WORLD GRIDDED-DATASET ECHAM5 4000BP TIME-RANGE-VALUES 5thPercentile SNOW-FALL

description: Climate Models
DOI: 10.17171/1-13-33349-1
title: WORLD GRIDDED-DATASET ECHAM5 4000BP TIME-RANGE-VALUES 5thPercentile SURFACE-ALBEDO

description: Climate Models
DOI: 10.17171/1-13-33350-1
title: WORLD GRIDDED-DATASET ECHAM5 4000BP TIME-RANGE-VALUES 5thPercentile SURFACE-PRESSURE

description: Climate Models
DOI: 10.17171/1-13-34061-1
title: WORLD GRIDDED-DATASET ECHAM5 5000BP TIME-RANGE-VALUES 95thPercentile TOTAL-CLOUD-COVER

description: Climate Models
DOI: 10.17171/1-13-34062-1
title: WORLD GRIDDED-DATASET ECHAM5 5000BP TIME-RANGE-VALUES 95thPercentile TOTAL-PRECIPITATION

description: Climate Models
DOI: 10.17171/1-13-34063-1
title: WORLD GRIDDED-DATASET ECHAM5 5000BP TIME-RANGE-VALUES 98thPercentile 10M-WIND-DIRECTION

description: Climate Models
DOI: 10.17171/1-13-34064-1
title: WORLD GRIDDED-DATASET ECHAM5 5000BP TIME-RANGE-VALUES 98thPercentile 10M-WINDSPEED

description: Climate Models
DOI: 10.17171/1-13-34065-1
title: WORLD GRIDDED-DATASET ECHAM5 5000BP TIME-RANGE-VALUES 98thPercentile 2M-DEW-POINT-TEMPERATURE

description: Climate Models
DOI: 10.17171/1-13-34066-1
title: WORLD GRIDDED-DATASET ECHAM5 5000BP TIME-RANGE-VALUES 98thPercentile 2M-RELATIVE-HUMIDITY

description: Climate Models
DOI: 10.17171/1-13-34067-1
title: WORLD GRIDDED-DATASET ECHAM5 5000BP TIME-RANGE-VALUES 98thPercentile 2M-TEMPERATURE

description: Climate Models
DOI: 10.17171/1-13-34068-1
title: WORLD GRIDDED-DATASET ECHAM5 5000BP TIME-RANGE-VALUES 98thPercentile EVAPORATION

description: Climate Models
DOI: 10.14457/cu.the.2011.1379
title: Symptom clusters in Thai patients with advanced lung cancer

description: To explore the characteristics of symptoms and to explore the presence and composition of symptom clusters in Thai patients with advanced lung cancer, based on the Theory of Unpleasant Symptoms. One hundred and sixty five patients with advanced lung were purposively selected from out- and in-patient oncology clinics at two tertiary hospitals in Bangkok to complete a demographic questionnaire and the Memorial Symptom Assessment Scale (MSAS). The results found that patients with advanced lung cancer age range between 35 and 84 years, with a mean of 62.4 years accompanied by multiple symptoms, averaged 14.65 symptoms during their disease and treatment. Coughing was the reported symptom. Lack of appetite was the symptom reported to be the most frequently occurring. Pain was the symptom reported to be the most severe as well as the most distressful. Seven symptom clusters were identified by using Factor Analysis with 63.24% of variance explained. The factors were labeled as: body image symptom cluster, neuropsychological symptom cluster, sleep alteration symptom cluster, digestive impairment symptom cluster, dermatologic and dizziness symptom cluster, bowel-emotional dysfunction symptom cluster, and pain related discomfort symptoms cluster. Knowing which symptoms cluster together may trigger an investigation and intervention of other symptoms within the cluster. A more immediate strategy maybe targeting only one of the symptoms for intervention and closely following the effect on the associated symptoms in cluster. The results intimately suggest nursing intervention on symptom management for better quality of life in Thai patients with advanced lung cancer.
DOI: 10.14457/cu.the.2011.1380
title: The effect of commercialization of culture on the Ifugao youth : a case study of two Ifugao municipalities in Northern Luzon, Philippines

description: This thesis analyzes how the young population in Ifugao is affected by the commercialization of their indigenous culture. Because of various factors like the conversion from the ancient Ifugao religion into Christianity, the adaption of national governing- and education systems, and the introduction of international mass media, the indigenous Ifugao cultural practices are vanishing. As an attempt to revive these practices, the municipal and provincial governments in Ifugao are arranging annual festivals showcasing the indigenous culture. In this process the Ifugao culture is commercialized, as the indigenous practices are being performed out of their original contexts as parts of a program created to entertain an audience. By examining the experiences concerning these festivals in the two municipalities Hungduan and Lagawe, this thesis discusses whether or not the commercialization process brings the ancient culture closer to a survival. As the future of the Ifugao culture is in the hands of the young generation, this group has been the focus group of this research. The two field studies took place during two annual municipal festivals, and here interviews and conversations with the Ifugao youth were carried out, questionnaires were handed out, and observation, mostly non-participant, was conducted. This resulted in this thesis arguing that by participating in the commercialized cultural festivals, the Ifugao youth increase their indigenous knowledge, and their feeling that their ancient culture is an asset becomes stronger. Thus, the Ifugao youth’s interest in keeping the ancient culture alive grows, and the arranging of festivals serves as away to protect the Ifugao culture. Because the Ifugao culture is closely linked to the agricultural cycle and the production of rice, this thesis also discusses whether or not the commercialization of culture leads to increased interest in the ancient rice terraces’ sustainability among the youth. Here, the thesis argues that an increased interest in keeping the Ifugao culture alive may over time lead to an increased interest in maintaining the rice terraces. If so, the commercialization of culture will serve as a way to keep the terraces sustainable. However, it is stressed that this connection is fragile, and that the Ifugao society still faces a great challenge concerning the survival of the rice terraces. It is suggested that a thoroughly study is conducted, where the thoughts, views and ideas of the youth are identified and listened to. As this thesis shows that the interest in the continued survival of the rice terraces exists, and that the youth do find the terraces both valuable and important, the remaining task is to find out how this level of interest can be increased.
DOI: 10.14457/cu.the.2011.1381
title: Information system design for transportation planning of a garment factory

description: This thesis reports the design of an information system for supporting transportation planning of a garment factory in order to meet receipts and deliveries in time with low cost of transportation. The design of the information system consists of 5 parts: (1) the decision making process in delivery planning, (2) the delivery plan changing process, (3) database, (4) computer screens that support delivery planning, and (5) the business process. The nearest neighbor, which is a technique of heuristics, is applied to generate and change transportation plans using the transportation cost as the main criteria. Business flow charts, data flow diagrams, and data schema are used to explain the design of the database, the user interface, and the business process. The system evaluation shows that the proposed method of decision making process in delivery planning can reduce the transportation cost by 46% from the current method. The proposed delivery plan changing process can reduce the cost of delivery plan changes by 58% comparing to the method generated by the experienced transportation planner. In addition, the users of this information system are satisfied with the concept and the principle of the system, because it can solve present vehicle routing problem, reduce the complexity of making a decision, and practical to implement.
DOI: 10.14457/cu.the.2011.1382
title: Impacts of the republic of Korea’s amendment of foreign workers employment act (2009) on Thai labor

description: The purpose of this study is to identify the effects of the change of Korean New Employment Law in the amendment of the Act on Employment of Foreign Workers, etc towards Thailand and Thai labor forces by using secondary data sources collected through various pieces of document and primary data sources derived from formal interviews with the officials and the head of the Department who holds responsibility for exporting Thai labor force to South Korea named Public Overseas Placement Section (EPS) under the control of the Thailand Overseas Employment Administration (TOEA), the Ministry of Labor Thailand including information derived from interviews with certain number of Thai Labors force who are under the EPS as well. Findings of this study help explaining the content resulted from the Amendment of Foreign Workers Employment Act which had clearly specified that the employers have the right to continually hiring foreign workers for 5 years without allowing them to return to their home country in order to applying for their visa extension (excepts the case of changing workplaces and re-employment) and did not caused such bad impacts upon the organizations which responsible for exporting Thai Labors to South Korea. As the EPS and the TOEA have already promoted developments and preparations for Thai Workers, co-operations with the Institute of Skills Development and the Department of Skills Development including aid from the Human Resources Development Korea (HRD Korea) in terms of the Test of Proficiency in Korean (EPS-TOPIK) are as well introduced. Thus, if there were to be any impacts at all, such should be only the positive ones. To make it more clearly understandable, it is said that the changes in terms of the extension of time employment resulted from the changes of the New Employment Law is not only very encouraging but is also considered an essential factor in accelerating developments and preparations for training Thai workers before exporting them to South Korea continuously and effectively. As the Thai workers are under the EPS also claimed that the extension of the time for employment is beneficial to themselves both because it helps save the cost and the time for doing re-entry and extending their visa as well.