Suranaree Journal of Science and Technology最新文献

{"title":"REDUCTION IN GREENHOUSE GAS EMISSIONS FROM COCONUT MILK PRODUCTION PLANTS IN THAILAND","authors":"Kanya Kosum, W. Arjharn, P. Liplap","doi":"10.55766/sujst-2023-05-e01360","DOIUrl":"https://doi.org/10.55766/sujst-2023-05-e01360","url":null,"abstract":"This research aimed to study how to reduce the amount of greenhouse gas generated during the production process of UHT coconut milk in Thailand. The system boundary was defined from cradle to gate, starting from whole coconut until coconut milk production by using life cycle assessment methodology based on ISO 14040. The study was divided into three groups: 1) greenhouse gas emission from the baseline process, 2) greenhouse gas emission from the co-product development process, and 3) greenhouse gas emission from biogas wastewater treatment systems used for electricity generation. For the baseline case, it was found that during the production of 1 kg of UHT coconut milk, the highest GHG emissions came from raw material procurement (78.55%) followed by the production process (18.54%). Electric power consumption included electricity consumption in the production process (0.59%) and the support system (41%). In addition, the electrical energy consumption for baseline processing and the co-product model from biogas was decreased and directly led to a decrease in greenhouse gas emissions and a reduction in carbon for the production process.","PeriodicalId":43478,"journal":{"name":"Suranaree Journal of Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.2,"publicationDate":"2023-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138945350","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"PREVALENCE OF SICKLE CELL ANEMIA IN YOUTH BY COST EFFECTIVE STRATEGY ALONG WITH HPLC","authors":"Minal Chetan Thakkar, Hitesh Natvarlal Shah, Prakashbhai Hirabhai Parma, Smit Kirtikumar Sukhadiya","doi":"10.55766/sujst-2023-03-e03091","DOIUrl":"https://doi.org/10.55766/sujst-2023-03-e03091","url":null,"abstract":"This study aimed to determine the prevalence of sickle cell disease among students of Anand People’s Medicare Society (APMS) using cost-effective screening methods and confirming the results with high-performance liquid chromatography (HPLC). A total of 395 students from Anand, Gujarat, were screened using the sickling test and solubility test as primary screening methods. Haemoglobinopathies carriers were diagnosed and confirmed using HPLC at the Indian Red Cross Society, State Branch in Ahmedabad. Complete hemogram analysis was performed, and the results were tabulated and analyzed. The results indicated that HPLC exhibited 100% sensitivity, specificity, and accuracy, while the sickling test demonstrated a sensitivity of 66.66%, specificity of 97.90%, and accuracy of 97.21%. The solubility test showed a sensitivity of 53.84%, specificity of 96.85%, and accuracy of 95.44%. HPLC had a 100% positive predictive value (PPV) and negative predictive value (NPV), whereas the sickling test had a PPV of 55.55% and NPV of 99.20%. The solubility test yielded a PPV of 36.84% and NPV of 98.40%. In conclusion, the sickling test and solubility test are cost-effective and easily conducted, with the sickling test providing more reliable results with higher sensitivity and specificity compared to the solubility test. HPLC is considered the gold standard test for screening.","PeriodicalId":43478,"journal":{"name":"Suranaree Journal of Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.2,"publicationDate":"2023-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138955886","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"PRELIMINARY DEVELOPMENT OF NURSES’ PRACTICE OF PEACEFUL END-OF-LIFE CARE INSTRUMENT (NP-PECI)","authors":"Xia Li, W. Kongsuwan, K. Yodchai","doi":"10.55766/sujst-2023-03-e03093","DOIUrl":"https://doi.org/10.55766/sujst-2023-03-e03093","url":null,"abstract":"Peaceful dying process is considered as an important outcome of high-quality of palliative care and end-of-life care. To meet the patients’ needs of peaceful end of life, appropriate nurses’ practice of peaceful end-of-life care is demanded. However,  no specific instrument was found to assess nurses’ practice of peaceful end-of-life care. This paper aims to report a preliminary development of an instrument to measure practice of peaceful end-of-life care among nurses. Theory of Peaceful End of Life developed by Ruland and Moore was employed as a framework in initial creating 30 item questionnaires of Nurses’ Practice of Peaceful End of Life Instrument (NP-PECI) in English language. The steps of validating contents of questionnaires were followed. Three experts in this area were reviewed and gave comments on each item. Content Validity Index (CVI) was evaluated and its average value was 0.94. Some unclear language items were revised. A pilot study in 60 Chinese nurses in a community hospital was done during March, 2021. The reliability of the NP-PECI was measured by using internal consistence reliability in which Cronbach’s alpha was 0.973. The result of this pilot study showed that the NP-PECI with 30 items was valid and reliable. However, rigorous evaluation of psychometric properties of this instrument will be recommended in a large sample size.","PeriodicalId":43478,"journal":{"name":"Suranaree Journal of Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.2,"publicationDate":"2023-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138955735","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"ADSORPTION OF DIBENZOXAZEPINE GAS ON TRANSITION METAL-DOPED SILICON CARBIDE NANOTUBES: A THEORETICAL INVESTIGATION","authors":"Chanukorn Tabtimsai, Chonpakorn Bootwong, Thanakrit Saramakhom, Banchob Wanno","doi":"10.55766/sujst-2023-03-e0176","DOIUrl":"https://doi.org/10.55766/sujst-2023-03-e0176","url":null,"abstract":"Dibenzoxazepine (CR) molecule is highly toxic gas, therefore, the development of highly sensitive materials for their adsorption and detection is desirable. Density functional theory (DFT) calculation was performed to study the adsorption behavior of CR gas on the pristine and transition metal (TM=Sc, Ti, Y, Zr, La, and Hf) –doped silicon carbide nanotubes (SiCNT) at both Si and C sites. The most stable adsorption configurations, adsorption distances, adsorption energies, charge transfers, energy gaps, orbital distributions, and density of states are obtained to understand the impacts of CR gas on the adsorption abilities and electronic properties of the pristine and TM–doped SiCNT surfaces. The results show that the pristine SiCNT exhibits low adsorption ability to CR gas. Conversely, the SiCNT doping with TM atom at Si and C sites enhances adsorption ability to CR gas. The strong adsorption of CR gas on TM–doped SiCNT surface is due to more favorable orbital interaction as well as shorter adsorption distance and larger charge transfer than pristine SiCNT. Moreover, the results reveal that the adsorption of CR gas significant changes in the electronic properties of TM–doped SiCNT. Therefore, the doping of TM atoms on SiCNT at both Si and C sites could enhance the adsorption ability and suitable for use as sensors for detecting CR gas.","PeriodicalId":43478,"journal":{"name":"Suranaree Journal of Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.2,"publicationDate":"2023-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138955652","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"ADAPTIVE TRAFFIC SYSTEM CONTROLLERS IN TRAFFIC ENGINEERING : A SURVEY","authors":"Amarpreet Singh, Sandeep Singh, Alok Aggarwal","doi":"10.55766/sujst-2023-03-e03030","DOIUrl":"https://doi.org/10.55766/sujst-2023-03-e03030","url":null,"abstract":"In today’s era, traffic congestion is the widest spread problem observed all over the world, arising as consequence of exponential rise in vehicle count at the traffic intersections. This growth has largely affected the people as they are experiencing enhanced delay in travelling time and increased fuel consumption which led to wastage of billions of dollars. The current road infrastructure design and traffic signal controlling using a cycle of fixed time phase of green/red/yellow lights are not adequate to tackle the rising demands of traffic in an optimum way. These traditional traffic signal systems cannot handle the dynamics of road traffic at the intersections and hence results in exceeding delays. Also, the volume of traffic at any intersection at different times of the day is uncertain and hence it is hard to get an exact mathematical model for this problem. Many researchers have proposed some solution to this problem and their work is reviewed extensively in this paper. Due to its ability to deal with uncertainty, fuzzy logic is considered as the most appropriate technique to solve this problem and is highly recommended method for implementing automated traffic controllers. Due to its inherent advantages, most of the research in the field of traffic engineering is carried out using fuzzy logic techniques. Hence, this paper presents a systematic review of various techniques that are used for an effective management of traffic, especially focusing on different fuzzy based traffic controllers and their performance comparison to identify the best input output parameter.","PeriodicalId":43478,"journal":{"name":"Suranaree Journal of Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.2,"publicationDate":"2023-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138996474","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"DEVELOPMENT OF MODE CHOICE BEHAVIOR MODEL FOR INTER-REGIONAL PUBLIC TRANSPORT– A CASE STUDY OF INDIA","authors":"Pinakkumar Ramanuj, Harishkumar Varia, Ami Shah, Arvindkumar M Jain","doi":"10.55766/sujst-2023-03-e0113","DOIUrl":"https://doi.org/10.55766/sujst-2023-03-e0113","url":null,"abstract":"Mode choice behavior of the inter-regional public transport passengers is important for proficient planning and operation of transport systems in developing countries. It is the responsibility of the authority to satisfy the demand for long regional trips having a significant movement of passengers by providing efficient public transport services. Most of the studies for the mode choice behavior of the passengers have been done for the urban mass transport within the urban conglomerate. The study aims to improve knowledge of the factor affecting passengers' decisions on the mode of travel for inter-regional public transportation in India. The Multinomial Logit (MNL) model and Artificial Neural Network (ANN) models among Gujarat State Road Transport Corporation (GSRTC) buses, Railways, and privately operated buses were developed for the trips between Surat city and Bhavnagar region of Gujarat, India. The final ANN model reflects a difference of attributes has 90.52% mode prediction capability against 70.11% of the MNL model. The developed model gives the proper insight for improving the transportation facilities in the region. It is revealed that the improvement in the service level and egress parameters are more important to attract travelers. The sleeper seat availability, lesser travel cost, lesser egress distance, and availability of night journey have been found important during travelers' thinking process to select the traveling mode. There are 13.1% and 20.1% rises in the probability of choosing GSRTC bus and train mode, respectively, with the improvement in the service level. Moreover, the GSRTC bus should improve its connectivity.","PeriodicalId":43478,"journal":{"name":"Suranaree Journal of Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.2,"publicationDate":"2023-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138997863","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"OIL PALM SHELL CONCRETE (OPSC): A SHORT REVIEW","authors":"M. F. Hama, M. P. Anwar, T. L. Lau","doi":"10.55766/sujst-2023-03-e02353","DOIUrl":"https://doi.org/10.55766/sujst-2023-03-e02353","url":null,"abstract":"With the increase of the world’s population, industrial development and the construction of housebuilding and infrastructure activities, the demand for construction material is increasing. Disposals of agricultural waste have been making serious damages to the environment. Thus, by replacing the conventional raw materials used in concrete today by agricultural waste will intensely decrease unwanted impacts caused by the current concrete industry. A novel replacement for the conventional aggregate in the past 4 decades has been the utilization of oil palm shells (OPS) in concrete. This paper reviews published reports on OPS being used as aggregate for concrete in its current stand. Physical properties of OPS, fresh properties of OPSC, mechanical properties of OPSC, Structural behaviour and OPS with other materials have all been reviewed in this paper. Recently, however, development in high yield oil palm fruit has led to waning compressive strengths. This review also indicates the necessity for new investigations based on the new fruit breeding type of oil palm tree which is known as Tenera OPS.","PeriodicalId":43478,"journal":{"name":"Suranaree Journal of Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.2,"publicationDate":"2023-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139001870","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"ND3+-DOPED BORATE GLASSES DEVELOPMENT FOR EFFICIENT NIR LASER MEDIUM MATERIAL","authors":"N. Luewarasirikul, J. Rajagukguk, J. Kaewkhao","doi":"10.55766/sujst-2023-05-e03038","DOIUrl":"https://doi.org/10.55766/sujst-2023-05-e03038","url":null,"abstract":"This study aims to determine the effect of neodymium concentration on barium sodium borate glasses. The glass samples were fabricated using the melt-quenching technique for analyzing the physical properties, absorption spectra, and NIR emission spectra. The twelve absorption bands increased with the increase in Nd3+ concentration. The most intense absorption band is centered at 583 nm (corresponding to the 4I9/2→4G5/2 transition), which is chosen to investigate the NIR emission spectra. The NIR emission spectra exhibited the most intense emission band at 1,077 nm under 583 nm excitation wavelength, corresponding to the 4F3/2→4I11/2 transition, respectively. The maximum NIR emission intensity was observed at the glass sample with 2 mol% of Nd3+. The NIR emission spectra and the results from Judd-Ofelt theory confirm that 2 mol% of Nd3+-doped Ba-Na-B glasses with a 1,077 nm emission in this work might be used as an NIR laser medium material.","PeriodicalId":43478,"journal":{"name":"Suranaree Journal of Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.2,"publicationDate":"2023-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139002038","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"SURFACE FUNCTIONALIZATION OF LINEN FIBER AND ITS DYE-FASTNESS ASSESSMENT USING (4-[(E)-(4-AMINO-2-HYDROXYPHENYL) DIAZENYL] BENZENE- 1-SULPHONIC ACID AND 4-[(E)-(4-{(Z)-[4-(DIMETHYLAMINO) PHENYL] DIAZENYL}-2-HYDROXYPHENYL) DIAZENYL] BENZENE-1-SULPHONIC ACI","authors":"Daniel Uwaremhevho Momodu","doi":"10.55766/sujst-2023-03-e03039","DOIUrl":"https://doi.org/10.55766/sujst-2023-03-e03039","url":null,"abstract":"Textile fibres find application in many fields, such as; Apparel manufacturing, Medical, Agriculture, Packaging, Civil construction, Shipping. Some of these fibres lack special characteristics required for some specific application without any additional treatment. Large scale production of linen fibre has been limited by the tendency of the fibre to absorb water, degradation by micro-organisms and sunlight. These factors ultimately lower the strength and the service life of the fibre. Hence, the need to improve the hydrophobicity of natural linen fibre before application. Poor dye-fibre interaction has been an area of constant interest in the textile industry. This has been expressed by bleeding, crocking, bleaching of fabric resulting to fading of the fabric. These shortcomings are sometimes due to poor treatment, manufacturing processes and customer handling. Natural linen fiber is an eco-friendly ligno-cellulosic fiber known for its strength, resistance to degradation, hydrophobicity when pointedly modified. In this research, chemical modification of scoured and bleached linen fibre by Acetylation, Methylation and Benzoylation was carried out. The chemically modified fibres were evaluated by techniques such as SEM and FTIR spectroscopy. The mechanical property (strength) was determined after each modification. The result obtained revealed an absorption band at 3432 cm-1 - 3450 cm-1 confirming the OH group in the linen fibre. The band at 704 cm-1 indicated the presence of a benzene ring from benzoyl chloride. The chemical modification changed the morphology of the linen fibre for improved dye–fibre interaction. The chemically modified species were dyed and further subjected to a dye fastness test. The results revealed at 4.33a ± 0.69, 5.00a ± 0.00 and 4.67a ± 0.58 as against3.00a±1.00, 3.33a±0.58 and 2.67a±0.58 for light fastness, wash fastness and rub fastness respectively when subjected to ANOVA analysis. In conclusion, benzoylated linen fibre was observed to most improved dye-fibre interaction.","PeriodicalId":43478,"journal":{"name":"Suranaree Journal of Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.2,"publicationDate":"2023-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139002945","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"DESIGN AND FABRICATION OF THERMOELECTRIC SOLID-STATE AIR CONDITIONER","authors":"Archusuek Mameekul, A. Vora–ud, Surasak Ruamruk, W. Namhongsa, P. Pilasuta, K. Singsoog, S. Thaowankaew, T. Seetawan","doi":"10.55766/sujst-2023-05-e02930","DOIUrl":"https://doi.org/10.55766/sujst-2023-05-e02930","url":null,"abstract":"In this study, we designed and fabricated of thermoelectric solid-state air conditioner (TESSAC) within 400 BTU/hour by using a thermoelectric cooling (TEC) module (model: TEC1-12710) for 3 modules. Thermal management was carried out with the aluminum water-to-radiator system through the liquid moly coolant for controlling the temperature on the hot side of the TEC module. The cooling performance and electrical power were measured during the operating system as performed in one cubic meter for 3 h. According to the experimental results, the TEC1-12710 of one module could be generated cooling by decreasing the temperature to -8.5oC. After useful TEC of 3 modules as useful TESSAC fabrication, TESSAC could be cooled at the cold side around 9.3°C, then the temperature at the center simulation room is around 27.5°C within the ambient temperature of 33.5°C. The coefficient of performance (COP) of TESSAC was calculated to be obtained around 5.5 with the AC power used of 202.31 W.","PeriodicalId":43478,"journal":{"name":"Suranaree Journal of Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.2,"publicationDate":"2023-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138971564","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}