cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.14457/cu.the.2007.1992
title: The effects of test authenticity and test delivery mediums on the computer-based reading comprehension ability and the test takers' attitudes towards the test

description: This study proposed, designed and created Reading Comprehension Tests for assessing first year students’ reading proficiency at King Mongkut’s Institute of Technology North Bangkok. The objectives of this study were 1) to investigate the effects of test authenticity and test delivery mediums on test takers’ reading proficiency and 2) to explore the attitudes of the test takers towards test authenticity and test delivery mediums. The Target Language Use domain was considered to develop authentic and inauthentic reading tests administered via paper-based and computer-based (computer-adaptive online) tests. Students’ attitudes towards these different versions of the tests were also investigated. The main research instruments included the Authentic English Reading Comprehension Conventional Paper-and-Pencil Test (ACON), the Inauthentic English Reading Comprehension Conventional Paper-and-Pencil Test (ICON), the Authentic English Reading Comprehension Computer-Adaptive Online Test (ACOM), and the Inauthentic English Reading Comprehension Computer-Adaptive Online Test (ACOM). A retrospective interview was conducted to investigate students’ attitudes towards those tests. The data obtained were analyzed by two-way analysis of variance (2*2 ANOVA) to identify the main effects and the interaction effects. Partial Eta square reported by SPSS program was used to measure the effect sizes of test authenticity and test delivery mediums. Content analysis and chi square (X²) tests were applied to find out whether there was any significant difference in the proportions of subjects’ attitudes towards test authenticity and test delivery mediums in each group. Findings reveal that (1) there was significant difference between the mean score obtained from the test considered authentic (ACOM and ICOM) and those obtained from the test considered inauthentic (ICOM and ICON) at the 0.05 level (p&lt; .05, F = 49.164). Partial Eta Squared value (0.142) shows the medium effect size of the test authenticity on test takers’ reading ability score (2) there was no significant difference between the mean score obtained from the test delivered by means of computer (ACOM and ICOM) and that obtained from the test delivered by means of paper (ACON and ICON) at the 0.05 level (p&gt; .05, F = 2.556). The effect size value of test delivery mediums is 0.009. This means that the effect size of the mediums on test takers’ reading ability scores was small. (3) The interaction effect between Mediums and Authenticity value obtained from the 2*2 ANOVA was significant at the level of 0.05 (p .05, F = 14.474). Regarding the test takers’ attitudes towards the test authenticity and test delivery mediums, it can be concluded that test takers tend to have positive attitudes towards the tests they took. However, there were some issues on which they reported negative attitudes.
DOI: 10.14457/cu.the.2007.1993
title: The effects of types of peer feedback and levels of general English proficiency on writing achievement of KMITNB students

description: The objectives of this study were 1) to compare the effects of paper-pencil peer feedback, e-mail peer feedback and web board peer feedback on the students’ writing achievement and to investigate their effect size; 2) to compare the effects of the levels of general English proficiency (high, moderate and low) on students’ writing achievement and to investigate their effect size; 3) to investigate the interaction effect between the types of peer feedback and levels of general English proficiency on students’ writing achievement and to investigate their effect size; 4) to survey the students’ attitudes toward the peer feedback they experience. The study was conducted with 90 engineering students with different levels of general English proficiency in a 3x3 factorial design. Stratified random sampling technique was used in this study for subject selection. In order to ensure the quality of peer feedback, they were trained for 6 hours on how to give useful feedback. The writing achievement test and close-ended questionnaire were used for the quantitative data collection. Two-way Analysis of Variance (ANOVA) and descriptive statistics were used to analyze and to explain the data. The qualitative data were gathered from open-ended questionnaire, learning log, and interview. The data in this part were transcribed, categorized, analyzed, and then presented in terms of tables and graphs. The findings were as follows: 1) the different types of peer feedback had a significantly different effect on the students’ writing achievement. It was found that the students in the web board group performed differently from the students in paper-pencil peer feedback group while the differences were not found between other pairs. The magnitude of the effect size was medium. 2) The levels of general English proficiency factor had a significant effect on the students’ writing achievement. Students in different ability groups all performed differently. The magnitude of the effect size for this factor was large. 3) There was no interaction effect between types of peer feedback and levels of general English proficiency on the students’ writing achievement. High proficiency students in the three groups performed better than the moderate proficiency students who performed better than the low proficiency ones regardless of the types of peer feedback they received. 4) The attitudes towards peer feedback of the three experimental groups were more or less the same that they had highly positive attitudes in most aspects explored.
DOI: 10.14457/cu.the.2007.1994
title: The endorsement of the four score for consciousness assessment in neurosurgical patients

description: Background: Glasgow Coma Scale (GCS) has been accepted for neurological assessment but it has some pitfalls during the assessment, e.g. not included brainstem indicators, obscured verbal response by intubation, etc. The FOUR (Full Outline of UnResponsiveness) score which evaluated eye response, motor response, brainstem reflexes and respiration has been developed but it has not been validated in neurosurgical patients. The study is aimed to endorse the FOUR score to GCS in practical environment. Material and methods: Awake, drowsy, stuporous, comatose patients were studied. Four evaluator groups; 2 expert clinicians (EC), 2 novice clinicians (NC), 2 experienced nurses (EN), 2 apprenticed nurses (AN) assessed 64 patients to assure each rater group reliability. Then, thirty six were evaluated by 1 EC and 1 from the others randomly to test the difference of both total scores by Wilcoxon’s signed rank test. Spearman’s correlation was used to find the correlation between both scores from 68 patients evaluated by EC. The estimation of FOUR score cut points were estimated and validated by weighted kappa (k) compared with the GCS to establish the risk prognosis. Score feasibility was analyzed by nonparametric test. Results: Intraclass correlation in each group was over 0.9 and there were no difference between the scoring from expert and inexperienced raters (p&gt;0.05). The scores’ correlation was good (r=0.78). The low, intermediate and high risk prognostic groups were ranged 0-7, 8-14 and 15-16 by FOUR score with k=0.92. The feasibility of FOUR score was lower than the GCS (p&lt;0.01). Conclusion: The FOUR score is reliable and valid for consciousness evaluation with some consequences in practicability. The extensive implementation would make it more familiar.
DOI: 10.21227/hepm-3j76
title: Benchmark dataset for small and narrow rectangular object detection from Google Earth imagery

description: The benchmark dataset are consisted of 2,413 three-channel RGB images obtained from Google Earth satellite images and AID dataset.
DOI: 10.21227/j7nx-2495
title: Benchmark dataset for small and narrow rectangular object detection from Google Earth imagery

description: The benchmark dataset are consisted of 2,413 three-channel RGB images obtained from Google Earth satellite images and AID dataset.
DOI: 10.7910/dvn/pmwyi5/qmb5zp
title: PresCab_BASIC_Chile.xls

description: :unav
DOI: 10.14457/cu.the.2007.1995
title: The optimum solution for clean development mechanism (CDM) of municipal solid waste incineration power plant at Nontaburi Province

description: This thesis presents the feasibility study of the municipal solid waste incineration power plant at Nontaburi province by focusing on the financial profitability and investment analysis, result and alternatives choices from Clean Development Mechanism or CDM implementation to be able to identify the optimum solution from such kind of this execution and to be a guideline for any investor who interested in such kind of this business later. The development follows the Capital Investment Analysis and Project Assessment criteria. It begins with quantitative assessment of the cost of all resources required to complete the entire project. Next, the financial analysis to determine whether the investment will contribute to the long run profits of the business by using the basis of discounted cash flow or Net Present Value (NPV). This result can answer whether the project investment have attractiveness or unattractiveness. Then, the economical analysis is determined whether the project is truly successful by looking at the net project operating profit after tax gains more than what the project shareholders original investment (including the service to creditors as well). Finally, it will present the alternative patterns of CDM implementation to identify what the optimum solution from this execution also. In the report, it identifies results in both of finance and economic are not feasible by having -1,569.53 Million Baht in project NPV and -313.32 Million Baht in EVA. So money support from CDM is considered to make the project being feasible in both of finance and economic, by using 2 adjustment criteria 1) adjust in the proportion debt and equity and 2) adjust in percent payment of dividends and bonuses. In result, both of them can be possibly done, but only case 2 can be implemented in actual; otherwise, it is hard to accept in the criterion.
DOI: 10.14457/cu.the.2007.1996
title: The Practice of corporate social responsibility and environmental protection in Thailand

description: To examine the current practice of corporate social responsibility (CSR) by the Thai business sector regarding environmental protection and sustainable resource management. It particularly looked at the limitations and constraints faced by the private sector, and the role of the state and civil society concerning to adoption of CSR practice in Thailand. The information used in the study was collected through documentary research and interview with key informants: three Thai businesses with an established reputation for CSR practice, an environmental NGO, and a governmental organization responsible for promoting CSR in Thailand. The findings revealed that there was a mutual and advanced understanding of the concept and practices of CSR among all participants. With regards to interaction between different sectors, the study showed that the respondents viewed that the CSR movement in Thailand corresponds with a trend towards more participatory policy-making and stakeholder involvement in the area of environmental standard. With regards to limitations, the study revealed discrepancies between large and small organizations, as well as variations across sectors. This is due to the lack of rational or cultural institutional environment to support or encourage CSR practice, resulting in disadvantage for small-scale enterprises engaging in beyond-compliance environmental protection. The different capacities between large and small organizations were reflected in their different approaches to CSR practice. While large business organizations adopted a ‘reformist’ approach, the smaller business took a ‘radical’ approach to CSR practice. However, the radical approach to CSR, which is based on local resource and capacity, is likely to be the most appropriate method for a developing country such as Thailand. Finally, this study recommended that the public, private, and civil society sectors should cooperate to establish measures, particularly the necessary regulatory framework and verification mechanisms, in order to support fair and transparent CSR practice in environmental protection and sustainable resource management by all Thai businesses.
DOI: 10.14457/cu.the.2007.1997
title: Treatment of oily wastewater by chitosan immobilized bacteria

description: Removal of oily wastewater by a natural sorbent integrated with biodegradation technique was explored in this laboratory-scale study. Chitosan is a cationic biopolymer produced by the extensive deacetylation of chitin obtained from shrimp shell wastes. To simulate wastewater from gas station, oil-in-water emulsion was prepared by mixing lubricating oil with distilled water and a nonionic emulsifier. The final concentration of oil was equivalent to 200 mg/L. From preliminary study, the maximum oil sorption capacity of powder chitosan, flake shrimp shell chitosan, and flake squid pen chitosan in a pH 7.0 buffer solution were 0.48, 0.19, and 0.24 g oil/g chitosan respectively. The amount of powder chitosan and mixing time were later varied to find the optimum conditions for maximum oil removal efficiency. At the optimum treatment conditions (dosage: 0.5 g/l and mixing time: 60 min), the oil and turbidity removal efficiency were around 80%. In the biodegradation experiment, oil-degrading bacteria were isolated from five soil samples. Two bacteria (Ch2 and Ch4) provided the highest lubricating oil degradation efficiency and specifically degraded the aromatic fraction of lubricant oil. Then, bacteria Ch2 and Ch4 were examined with oil-in-water emulsion 200 mg/L. Bacteria Ch2 obtained 80% of oil-in-water emulsion degradation; whereas, bacteria Ch4 could degrade only 65%. Hence, bacteria Ch2 was selected and immobilized on three chitosan forms for the treatment of high oil-in-water emulsion concentration. There was found that the treatment of oil-in-water emulsion by flake chitosan-immobilized cells achieved the highest oil removal efficiency. Finally, this research investigated and compared the effectiveness of three treatment types: sorption by chitosan, degradation by the isolated bacteria, and sorption and degradation by chitosan-immobilized bacteria treatment. The oil-in-water emulsion removal efficiency was determined from the remaining oil concentration in water. When the concentration of oil-in-water emulsion was increased, the oil-in-water emulsion removal efficiency of chitosan-immobilized cells was the highest (91%) and remained constant throughout the study. These result suggested that sorption and degradation by chitosan-immobilized bacteria was the most appropriate process to treat oily wastewater.
DOI: 10.14457/cu.the.2007.1998
title: Using design principle violation check definitions for evaluating aspect-oriented software maintainability

description: Maintainability is an important factor that developers should concern because two-thirds of the software cost involves maintenance. Without the good design from prior software development phase and without the good measurement for assessing the software quality, the maintenance cost will likely to be high. Aspect-oriented programming is a programming paradigm that firstly emerges out as an augmentation of object-oriented programming and aims to promote the good design. It attempts to solve code tangling and code scattering problems by introducing an aspect to modularize and to encapsulate the crosscutting concern. Various studies are provided to support the object-oriented software measurement using the Factor-Criteria-Metric approach. However, few research works are done to support measuring aspect-oriented software using the Factor-Strategy approach. This thesis gathers a collection of design principles, extracts and proposes some aspect-oriented design guidelines, and defines violation check definitions for detecting design flaws to construct a metric suit for measuring aspect-oriented software maintainability. Twenty-seven design principles are selected to form the maintainability metrics following the Factor-Strategy approach. The metrics and the principle violation check definitions are applied to evaluate fifty software samples. They expose flaws in forty nine systems. In addition, the metrics are used to compare two sets of systems written in Java and AspectJ. The results point that the maintainability of six systems from twenty three systems is improved after applying aspect-oriented concept.
DOI: 10.14457/cu.the.2007.1999
title: Utilization of eucalyptus bark waste for recovery of copper and lead

description: This dissertation comprised two main parts which are the characterization of activated carbon obtained from eucalyptus bark by phosphoric acid activation and the application of activated carbon along with solvent extraction in the recovery of copper from binary mixture between copper and lead. In the characterization part, the optimum temperature for the activation by phosphoric acid was 500°C at the weight by volume ratio of raw material and phosphoric acid (impregnation ratio) of 1:1 and activation time of 1.5 h. This condition gave the highest iodine number at 1,226 mg g-1, methylene number at 425.5 mg g-1 and also highest BET surface area of 1,457 m2 g-1. The activated carbon product was tested for its adsorption capacities for Cu(II) and Pb(II). Experiments demonstrated that both Cu(II) and Pb(II) were best adsorbed at pH 5 where the adsorption reached equilibrium within 45 minutes for the whole range of initial heavy metal concentrations investigated here (0.1-10 mM). The adsorption kinetics followed the pseudo second-order model where equilibrium adsorption capacities and adsorption rate constants increased with initial heavy metal concentrations. The adsorption isotherm followed Langmuir better than Freundlich models within the temperature range of 25-60 ℃ The highest maximum adsorption capacities (qm) occurred at 60 ℃ where qm for Cu(II) and Pb(II) were 0.85 and 0.89 mmol g-1, respectively. The enthalpies of adsorption of Cu(II) and Pb(II) were 43.26 and 58.77 kJ mol-1, respectively. The positive enthalpy of adsorption indicated endothermic nature of adsorption. The desorption/extraction of metals from the activated carbon was investigated using a few common extraction agents, i.e. citric, phosphoric and sulfuric acids. The results illustrated that the extraction process was completed in 60 min where citric acid at 1N was the best desorbing agent with almost 100% extraction of the bound metals. Sulfuric acid (1N), on the other hand, was suitable for the recovery of Cu(II) and Pb(II) from binary system as sulfuric acid could only extract Cu(II) from the activated carbon while leaving Pb(II) on the carbon surface. This therefore allowed effective separation of Cu(II) and Pb(II) from the adsorption column. In fixed bed experiments, the sorption capacity increased with increasing bed depth of the column or decreasing wastewater flow rate. The BDST and Thomas models could well predict the performance of the adsorption column for both metals.
DOI: 10.14457/cu.the.2007.2000
title: Effects of other metals on cadmium uptake by sugarcane

description: Effect of other metals (Cu, Fe, Mn, Pb and Zn ) and soil properties (pH, organic matter (OM) and oxidation-reduction potential (ORP)) on bioavailable cadmium uptake to sugarcane grown in contaminated area nearby the zinc mine deposit, Mae Sot, Tak province, was investigated. Soil and sugarcane samples (root, bagasse and juice) were collected to characterize the bioavailable fraction by comparing weakly bound fraction with the total metal content using ICP-OES spectrometer. Acid digestion (US EPA, Method 3052) and the first-two steps of BCR sequential extraction proposed by the Standards, Measurements and Testing Programme (SM&M) had been applied for determination of total metals and available metals, respectively. Studied soil samples showed a wide range of physicochemical properties: pH (5.79 to 8.07); OM (0.52 to 4.16 g/kg soil); ORP (-291.1 to 347.9). Of the elements studies, cadmium has a highest mobility since it presents the highest content in the first fraction (BCR1) followed by Mn, Zn, Pb, Cu and Fe, respectively. The concentration of all metals was high in root rather than juice and bagasse of sugarcane. This may imply that metals were absorbed, accumulated, and retained by the roots rather than translocated through shoot. Principal Component Analysis (PCA) together with correlation analysis showed supporting results to each other, implying that some interactions and/or relations existed among these metals (Cd, Pb and Zn) in both available and total forms. In addition, total Cd accumulated in 10 months sugarcane samples were analyzed for whole parts (root, underground stem, bagasse, juice, top and leave) and the result agrees with the first part that available Cd and available Zn in soil exhibits the correlation coefficient (r) = 0.473* and 0.431* at significant level 0.05, respectively.
DOI: 10.14457/cu.the.2007.2001
title: Defect reduction in alloy casting industry

description: The objective of this research is to reduce the defect rate in aluminum alloy casting process. The selected product is chair's leg of a garden set, which has the most production volume in the case study company. There are three defect types that mostly occur in the casting process, which are Metallic Projection, Cavities, and Defective Surface. These defect types cause rework costs for the case study company. The research was started from defining potential factors that might be the causes of three defect types by using brainstorming and research. There are six potential factors that found. The six potential factors are pouring height, number of gates, snow powder quantity, solidification time, aluminum combination, and gate size. These six potential factors were tested using DOE techniques, where the three types of defects were used as three responses. Then, ANOVA was used to test for significant factors. The result shows that the effects of some factors are not consistent between some responses. Thus, the total cost of rework was then used as the decision criteria for factor level selection. The chosen levels are pouring height at 10 centimeters, 1 number of gate, 10 grams of snow powder, 10 minutes for solidification time, aluminum combination of 18 bars of solid type and 2 bars of resilient type, and gate at size 2x7 centimeters. The findings are confirmed by follow-up runs. After improving the process, the production time for a garden set has reduced from 6 hours and 1 minute to 5 hours and 40 minutes, or it reduces by 6% as a result of the reduction of rework time. If calculate it in term of products that the company can gain after implementing this new setting. The company can actually produce the products 26.43 extra garden sets from the original setting and gain the income by about 330,313 baht. However, the new setting only applies to the chair's legs. If this experiment expands to the rest of the chair parts, the income will likely increase.