cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.14455/jgsee.res.2014.107
title: Investigation of nutrient and coliform bacteria from non-point source on the Chao Phraya river bank in dry season

description: This research tries to investigate the effect of waterfront building, house and wastewater treatment plant on the river bank of the Chao Phraya river in dry season. Water samples from the Chao Phraya river bank were collected during daytime and analyzed for coliform bacteria and nutrient. Results revealed that mean daily of total coliform bacteria (TCB) of 566?104 CFU/100mL was found at 25 m from river bank near waterfront housing. The high TCB and fecal coliform bacteria (FCB) from urban which contaminated to the river is risk for human uses; therefore, an efficient water resources sustainable management should be implemented.
DOI: 10.14455/jgsee.res.2014.123
title: Future prediction of energy, CO2, and surface ozone over South, East, and Southeast Asia in 2030

description: Three future scenarios have been developed to evaluate the effects of economic growth in all of Asian countries and potential energy and environmental strategies implemented in China and India on surface ozone over South, East, and Southeast Asia as well as energy consumption and CO2 emission. Three-dimensional regional air quality simulations using the emissions of nitrogen oxide (NOx) and volatile organic compound (VOC) estimated in the scenarios imply that surface ozone basically increases due to future economic growth, and that the potential energy and environmental strategies assumed in the scenarios are effective to suppress surface ozone over China, India, and surrounding countries including Thailand. In addition, the potential energy strategies could realize co-benefits, which result in simultaneous reduction of energy consumption and CO2 emission in China and India. More works are necessary to consider specific effective energy and environmental strategies to suppress energy consumption, CO2 emission, and air pollution involving particulate matter (PM) as well as surface ozone in Thailand.
DOI: 10.14455/jgsee.res.2014.98
title: Crossroad between sustainability and energy efficiency

description: Based on the European directive (2002/91/EG) the European Parliament and Council decided that the Member States must apply performance low energy requirement for new and existing buildings. To ensure the certification of energy performance the regular inspection of boilers and air conditioning systems in buildings are necessary. The choice of individual building components but also heating, cooling and ventilation systems as well as lighting significantly influence the energy performance of buildings.  This paper deals with the comparison between two different standards for energy savings calculations of residential buildings: the German standard DIN V 4108-6 and the American standard ASHRAE 90.1.  Therefore an exemplary residential building is calculated with both standards and two different building components.  A typical lightweight timber-frame construction is compared with a heavy lime sand brick wall construction. Both constructions are used to reach the German energy standard and also a low energy standard.  As a result, the energy demand of the variants is compared and analyzed by Life Cycle Assessments and their thermal comfort. For calculating the energy demand but also analyzing the thermal comfort and the life cycle assessment the software programs D?MMWERK and WUFI Plus are used.
DOI: 10.14455/isec.res.2014.51
title: MODELING OF CONCRETE BEHAVIOR UNDER BIAXIAL FATIGUE LOADING WITH VARIOUS MEAN STRESSES

description: In this paper, a general approach is proposed for modeling the behavior of concrete under biaxial fatigue loading with various mean stresses (stress range). Using damage mechanics and principles of thermodynamics, a generalized bounding surface approach is proposed. It is mentioned that limit surface, determined by model, is a condition in which the number of fatigue loading is set to one. In other words, limit surface represents the strength of material under monotonic loading with various load paths. By increasing the number of loading cycles, the limit surface is allowed to contract and to form surfaces representing residual strength curves. The evolution of the subsequent surfaces depends on load magnitude, load range (mean stress), and load path. Within the formulation, a softening function is postulated which captures the reduction in the strength of concrete under fatigue loading. A comparison of model predictions against experimental data shows a good correlation.
DOI: 10.14455/isec.res.2014.53
title: NUMERICAL DYNAMIC ANALYSIS OF ORTHOTROPIC PLATES UNDER LOCALIZED BLAST LOADING

description: This paper analyzes the dynamic response of fixed supported orthotropic plates under localized blast loading using the method of modal superposition. The analysis procedure is used to quantify the linear transient response of such plates to the localized blast load at different positions. Many studies are currently available, in which the blast load is considered to be spatially uniform across the plate, with a temporal distribution described by a Dirac delta function. The novel aspect considered here is the case for which the blast load is modeled as a linear triangular function, and the orthotropic plate is fixed along its edges. A Mathematica program is used to solve the first and the second auxiliary Levy-type problem to determine the values of the natural frequencies of the system. The results presented here are collected from the results of analyses performed on localized blast-loaded orthotropic plates, for a variety of parameters important with regard to the dynamic response. Conclusions are drawn concerning the influence of the various parameters on the nature of the orthotropic-plate response.
DOI: 10.14455/isec.res.2014.54
title: SEISMIC EVALUATION OF CODE DESIGNED STEEL PLATE SHEAR WALLS UNDER MAINSHOCK-AFTERSHOCK EARTHQUAKE SEQUENCES

description: Structures are often subjected to sequences of mainshock and aftershocks during their service life. Strong aftershocks have been known to cause extensive structural damage and losses of human lives in addition to the damage and losses of the mainshock. Steel plate shear walls (SPSWs) have recently attracted considerable interest as a promising lateral-resisting system in seismic-prone regions. The SPSWs consist of steel beams and columns with a thin infill steel plate. The unstiffened thin plates are expected to buckle at low seismic loads and develop tension field action that enables favorable ductility and energy dissipation. The American Institute of Steel Construction's Seismic Provisions prescribe a capacity-based design methodology that uses SPSWs as primary seismic force resisting systems, and require the design of SPSWs to be consistent with the design requirements for other ductile steel seismic force resisting systems. This paper presents numerical analysis of a code-designed eight-story SPSW building that was subjected to consecutive mainshock-aftershock earthquake events. Ground motions developed for the SAC project were selected and scaled to simulate the main shock events at maximum considered earthquake (MCE) level, and large aftershocks events at design base earthquake (DBE) level. Nonlinear response history analysis using the finite element program OpenSees were conducted to investigate the performance of the code designed SPSWs. It was demonstrated that the designed SPSW has good performance under mainshock-aftershock sequences.
DOI: 10.14455/jgsee.res.2014.111
title: Decomposition of volatile organic carbon with photo-oxidation

description: The oxidation behavior of ethylene and methanethiol were investigated in the systems of ultraviolet (UV) light/hydrogen peroxide aqueous solution and UV/hydrogen peroxide aqueous solution/wire mesh to evaluate the usefulness of UV irradiation for the oxidation of volatile organic compounds. The light induced chemical absorption of ethylene was observed. UV irradiation induced the chemical absorption of ethylene; ethylene was not oxidize directly by UV irradiation, and it did not dissolve into hydrogen peroxide aqueous solution in the absence of UV irradiation. Ethylene  was converted to intermediates that dissolve in the liquid phase. Carbon dioxide evolved drastically after the disappearance of ethylene in the gas phase. The methanethiol concentration decreased drastically by UV irradiation in the UV/hydrogen peroxide system while the intermediates produced by the direct photodecomposition tended to remain in the gas phase. The UV/hydrogen peroxide/wire mesh system accelerated the oxidation of the intermediates in liquid phase as well as the intermediates in the gas phase according to the photo-Fenton reaction.
DOI: 10.14457/cmu.res.2007.64
title: การทดสอบความสัมพันธ์ระหว่างอัตราแลกเปลี่ยน ของค่าเงินบาทกับค่าเงินดอลลาร์สหรัฐอเมริกา ตามทฤษฎีอัตราดอกเบี้ยเสมอภาค โดยวิธีโคอินทิเกรชัน /
DOI: 10.14455/isec.res.2014.49
title: SHEAR REPAIRED RC BEAM BY FRP BONDING WITH EXTERNAL POST-TENSIONING

description: Various factors, including increase in traffic volume and weight, structural aging, and environmental impact, cause damage in structural members. This raises the importance of the maintenance, rehabilitation, and strengthening of reinforced concrete members. External post-tensioning is one of the widely-used strengthening techniques in many countries due to its advantages over other strengthening methods. Although flexural strengthening of existing structural members is a well-established method, shear strengthening of structural members, especially with existing shear cracks, has attained very little attention from researchers. Similarly, external fiber-reinforced polymer (FRP) bonding for shear strengthening of structural members, especially with existing shear cracks, is a relatively new area of research. This paper presents the results of an experimental study on the shear strengthening of reinforced concrete (RC) beams with existing shear cracks by external post-tensioning and external FRP bonding. The test result showed that the combined strengthening technique of external post-tensioning and external FRP bonding can effectively increase the shear capacity of RC beams with existing shear cracks.
DOI: 10.14457/cmu.res.2008.88
title: การทดสอบความสัมพันธ์ระหว่างปริมาณการใช้ไฟฟ้า กับการเจริญเติบโตทางเศรษฐกิจของประเทศไทย /
DOI: 10.14457/cmu.res.2008.90
title: การทดสอบความสัมพันธ์ระหว่างอัตราการเปลี่ยนแปลง ของดัชนีราคาตลาดหลักทรัพย์แห่งประเทศไทย กับอัตราการเจริญเติบโตทางเศรษฐกิจของประเทศไทย /
DOI: 10.14457/cmu.res.2009.71
title: การทดสอบความสัมพันธ์ระหว่างราคาน้ำมันดูไบ กับผลิตภัณฑ์มวลรวมภายในประเทศของประเทศไทย /
DOI: 10.14457/cmu.res.2009.73
title: การทดสอบความสัมพันธ์ระหว่างอัตราแลกเปลี่ยน กับดัชนีหมวดธุรกิจ ในตลาดหลักทรัพย์แห่งประเทศไทย /
DOI: 10.14455/isec.res.2014.48
title: PRACTICAL SEISMIC STRENGTHENING OF R/C BEAM-COLUMN JOINTS WITHOUT LATERAL REINFORCEMENTS IN DEVELOPING COUNTRIES

description: Several destructive earthquakes in developing countries in recent years have revealed that a large number of reinforced concrete (R/C) buildings contained no lateral reinforcements in beam-column joints. Severe damage was caused to such beam-column joints due to poor structural capacities, and resulted in complete/story collapse of buildings and loss of human lives. Considering the economic and technical conditions in developing countries, this paper proposes a practical seismic strengthening method for applying R/C wing walls to this kind of substandard beam-column joint. A feasible design concept is presented exemplifying an exterior beam-column joint, representing a typical earthquake-damaged joint by the 2009 West Sumatra, Indonesia earthquake. In this study, two 3/4-scale exterior beam-column joint specimens were constructed with the common structural details, and one of them was strengthened by R/C wing walls. Their seismic performance was evaluated through static cyclic loading tests. It was found that the strengthened specimen behaved a ductile manner with beam yielding, whereas the unstrengthened control specimen prematurely failed at the joint. The proposed strengthening method significantly increased the moment resistance of the joint. Fundamental experimental data could be successfully obtained to propose the calculation procedure for designing R/C wing walls for practical strengthening.
DOI: 10.14455/isec.res.2014.52
title: EVALUATION OF S-WAVE AMPLIFICATION SPECTRUM USING MICROTREMORS

description: To evaluate the site effects above the engineering base rock with an S-wave velocity of 300m/s, microtremor measurements on the ground surface were conducted in Maizuru, Japan. An estimation method of S-wave amplification spectrum using the microtremor H/V spectral ratio was applied at the ground surface, estimating S-wave amplification spectrum without any ground information based on the microtremor measurement results. It was found that the evaluation of S-wave amplification spectrum needs a revision on the microtremor H/V spectral ratio, using some coefficients on the microtopography classification and the shape of the microtremor H/V spectral ratio.
DOI: 10.14455/isec.res.2014.56
title: A MODEL SHAKING TABLE TEST INVESTIGATION ON AN ASSEMBLY FRAME

description: A shaking table test on a two-story aluminum alloy space frame model with mortise and tenon joints were carried out. The natural frequency and the damping ratio of the model in two directions were obtained by vibration frequency sweep. Inputting EL-Centro (N-S) 0.1g, 0.2g and 0.4g seismic motion, the strain, displacement and acceleration response of the model structure were investigated. It shows that the mortise and tenon joint frame has lower natural vibration frequency, higher damping ratio, better ductility, and better seismic performance than the corresponding rigid connecting structure.
DOI: 10.14455/jgsee.res.2014.20
title: Bio-oil upgrading using iron and mesoporous silica-alumina catalysts

description: Deoxygenation of bio-oil by mesoporous silica-alumina (MSAl), Fe-loaded mesoporous silica (MSFe) and Fe-loaded mesoporous silica-alumina (MSAl/Fe) catalysts with different Al and Fe contents was studied.  The amount of Al and Fe in the prepared catalysts was 1-10 mol% and 1-10 wt%, respectively.  Oil yield after catalytic cracking tests by these catalysts was not significantly low (31.2-52.8 wt%) compared to the oil content of the raw bio-oil (67.3 wt%).  Water content (32.7 wt% in raw bio-oil) was remarkably lowered to less than 10 wt% by all catalysts.  Moreover, calorific value of raw bio-oil (22.5 MJ kg-1) increased to 30-31.8 MJ kg-1 after cracking.  Oxygen content in the produced oil decreased with increasing Al content.  Although Fe showed a suppressing effect of deoxygenation, an addition of Fe increased H/C ratio of oil.  Deoxygenation by MSAl-10/Fe-10, which is the catalyst with the highest Al and Fe contents, produced an oil with the least oxygen content and relatively high H/C ratio among the studied catalysts.
DOI: 10.14457/cmu.the.2008.47
title: การถ่ายทอดความรู้อาชีพช่างประกอบรถม้าในจังหวัดลำปาง /
DOI: 10.5255/ukda-sn-7595-1
title: National Pupil Database, Key Stage 4, Tier 2, 2002-2013: Safe Room Access
DOI: 10.14455/jgsee.res.2014.25
title: Overview and status of biogas production in Zambia

description: Despite research work and implementation of biogas having started as early as in the 1980s, Zambia has lagged behind in the adoption and use of biogas in the sub-Saharan Africa. The study established that there is a biogas theoretical potential of 76PJ per annum from animal manure and crop residues. This is sufficient to provide energy for cooking and lighting in more than 3 million households. Lack of funding, lack of policy, regulatory framework and strategies on biogas, unfavorable investor monetary policy, inadequate expertise, lack of awareness of the benefits of biogas technology among leaders, financial institutions and locals, resistance to change due cultural and traditions of the locals, high installation and maintenance costs of biogas digesters, inadequate research and development, improper management and lack of monitoring of installed digesters, complexity of the carbon market, lack of incentives and social equity are among the challenges that have derailed the adoption and sustainable implementation of domestic biogas production in Zambia. Unless these are addressed, it is unlikely that the biogas sector in Zambia will flourish.
DOI: 10.14455/jgsee.res.2014.38
title: Study on gasification of multi-air-stage downdraft reactor using pelletized biomass

description: The downdraft gasification technology has been well known among researchers as the most promising biomass utilization method. Common downdraft gasifier generally consist only single stage air supply. This study developed the design of downdraft gasifier to triple air supply stages which can carry up to 50 kWth. The aim of this study is, instead of improving gasifier performance, can improve producer gas quality. Eucalyptus wood pellet was chosen as raw material in consideration of stable dry fuel, more uniform size, increase the energy density and decrease problematic in gasifier. By varying two different air flow feed (285 L/min and 400 L/min) in each double and triple air supply stages, measuring the CO, H2, CH4 and CO2 gas concentrations, the gas heating value, as well as other performance variables were calculated. There was almost linear relation between air flow feed, a number of stages and producer gas quality: Air flow feed of 400 L/min showed a better syngas quality than 285 L/min with CO, CH4 and H2 concentrations of 12.6, 0.88 and 8.80% v.
DOI: 10.14457/cmu.res.2007.59
title: การถ่ายทอดความรู้ อาชีพต้องลายสังกะสี ในจังหวัดแม่ฮ่องสอน /
DOI: 10.14457/cmu.the.2006.46
title: การถ่ายทอดความเชื่อเกี่ยวกับการรักษาพยาบาลแบบพื้นบ้านในชุมชนชนบท /
DOI: 10.14455/jgsee.res.2014.37
title: Effect of Solvent Treatment of Rice Straw

description: The fractionation method was reported as solvent treatment of coal. In these days, the application of this method applied to biomass waste like rice straw. In the country where the amount of rice production is high, for example Thailand, it is important to mine rice straw. Therefore the solvent treatment of rice straw is hoped to improve it to energy resources and carbon materials. We examined solvent treatment of two type rice straw. One is from Thailand (RS-T) and another is from Japan (RS-J). In solvent treatment, we produced three solid components, Residue, Deposit and Solvent. Residue is insoluble component at 350?C and separated filtration. Deposit is insoluble component at room temperature in filtrate after treatment at 350?C and separated filtration after cooled down. Soluble is soluble component at room temperature and produced by removing solvent from filtrate by distillation. We evaluated the yields of these components and properties.
DOI: 10.14455/jgsee.res.2014.41
title: Implementation of PI-controller based D-STATCOM for harmonics and reactive power compensation

description: This paper presents the implementation of PI-controller based D-STATCOM for harmonics and reactive power compensation. Using the instantaneous active and reactive power theory for calculate the reference currents. The simulation results using MATLAB/Simulink and the experimental results with the prototype D-STATCOM have been implemented.
DOI: 10.14455/isec.res.2014.6
title: LOCAL EFFECTS OF TRUSS NODE FORCES ON SHEAR CONNECTION IN COMPOSITE TRUSS BEAMS

description: Design of composite steel and concrete truss girders is discussed, with an emphasis on longitudinal connection of the steel truss and a concrete slab. While a strongly non-uniform distribution of longitudinal shear due to localized force transfer in truss nodes occurs in elastic stages of early loadings, the plastic redistribution follows up to collapse. The former is of primary interest in the design of bridges, class 3 and 4 cross sections, non-ductile shear connection, and serviceability limit states in general. This research clears up the distribution in elastic phases and the process of plastic redistribution by using data of real bridge structures. Wide parametric studies provide insight into important parameters influencing the distribution, such as rigidities of shear connection, rigidities of steel chord and concrete slab, concentration of shear connectors above truss nodes, influence of temperature effects, shrinkage and creep. Design according to Eurocode 4 is discussed together with common procedures used by designers, referring to rather improper/conservative solutions. The necessity of densification of shear connectors above truss nodes is discussed in detail and suggestions for an iteration analysis for reasonable connection design is proposed.
DOI: 10.14455/isec.res.2014.8
title: EVALUATION FOR RESIDUAL AXIAL FORCE OF CORRODED HIGH TENSILE BOLTS

description: This paper presents a method for evaluating the residual axial force of corroded high strength bolts in experiments, and analysis measuring the axial force of corroded high strength bolts. In order to reproduce the axial force reduction due to corrosion, the test specimens were made by cutting the bolt head widthwise or the height-wise with an initial axial force. The curve of axial force lowering is prepared with a reduced thickness in height and width of bolts as a parameter. Therefore, the residual axial force can be estimated by the thickness reduction of bolt. Moreover, we measured the residual axle force of real corroded high strength bolts, taken from a bridge removed from service for a long time, and inspected an axis drop curve. In order to classify corrosion shapes, we measured the three-dimensional surface shape of corroded high strength bolts without contact, and considered the relationship between the surface shape of corroded high strength bolts and the axial force reduction.
DOI: 10.14457/ku.the.2009.679
title: การแสดงออกของสายพันธุ์ผสมรวมและสายพันธุ์ย่อย ของแต่ละสายพันธุ์ที่พัฒนามาจากสามวิธีคัดเลือก /
DOI: 10.14455/jgsee.res.2014.51
title: Framework for phasing out electric shower water heater for Thailand

description: The power capacity (kW) of instantaneous electric shower unit water heater is generally 5-10 times greater than the substitution technology i.e. compact heat pumps and hot water solar collectors. The compact heat pumps is good for the available power grid area whereas the hot water solar collector is suitable for both grid and off grid area. The morning and evening peak demand from hot water showering could be cut by the substitution technology. In view of energy policy of the country, the phasing out of electric shower unit water heater must be done. For Thailand, the Ministry of Energy is the responsible organization for phasing out. The phasing out must be in the form of the slightly change because the existing manufacturer of the electric shower unit water heater need time for adaptation to the market transformation.