Pub Date : 2023-04-30DOI: 10.26877/asset.v5i1.14902
Muhammad Hudzaly Hatala, Bambang Purwanggono Sukarsono, Denny Nukertamanda
A PLTU must carry out operational tasks continuously to meet electricity needs. Based on historical data PT. PJB Service Kendari for the last three years, there has been an increasing trend of downtime and derating at PLTU Nii Tanasa Kendari. The boiler system is one of the systems that often experiences disturbances. The purpose of this research is to carry out a risk analysis and improve reliability using the FMECA method and reliability calculations. FMECA is required to carry out a risk analysis to find out in detail ways of mitigating risks, sorting and labeling risks for critical components based on the RPN. The results of reliability calculations based on MTTF found that 9 out of 13 critical components had a reliability value below 50%; increasing reliability values could be achieved using preventive maintenance (Rm(t)), and maintaining reliability values above 60% could be achieved using periodic component replacement (R(t-nT)).
PLTU必须连续执行运行任务以满足电力需求。根据过去三年PT. PJB Service Kendari的历史数据，PLTU Nii Tanasa Kendari的停机时间和降率呈上升趋势。锅炉系统是经常受到扰动的系统之一。本研究的目的是利用FMECA方法和可靠性计算进行风险分析，提高可靠性。FMECA需要根据RPN进行风险分析，详细找出降低风险的方法，对关键部件进行风险分类和标记。基于MTTF的可靠性计算结果发现，13个关键部件中有9个的可靠性值低于50%;通过预防性维护(Rm(t))可以提高可靠性值，通过定期部件更换(R(t- nt))可以使可靠性值保持在60%以上。
{"title":"Risk and Reliability Improvement Analysis of Boiler System Using FMECA Method. Case Study : PLTU Nii Tanasa Kendari.","authors":"Muhammad Hudzaly Hatala, Bambang Purwanggono Sukarsono, Denny Nukertamanda","doi":"10.26877/asset.v5i1.14902","DOIUrl":"https://doi.org/10.26877/asset.v5i1.14902","url":null,"abstract":"A PLTU must carry out operational tasks continuously to meet electricity needs. Based on historical data PT. PJB Service Kendari for the last three years, there has been an increasing trend of downtime and derating at PLTU Nii Tanasa Kendari. The boiler system is one of the systems that often experiences disturbances. The purpose of this research is to carry out a risk analysis and improve reliability using the FMECA method and reliability calculations. FMECA is required to carry out a risk analysis to find out in detail ways of mitigating risks, sorting and labeling risks for critical components based on the RPN. The results of reliability calculations based on MTTF found that 9 out of 13 critical components had a reliability value below 50%; increasing reliability values could be achieved using preventive maintenance (Rm(t)), and maintaining reliability values above 60% could be achieved using periodic component replacement (R(t-nT)).","PeriodicalId":414022,"journal":{"name":"Advance Sustainable Science Engineering and Technology","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126283624","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}
Pub Date : 2023-04-30DOI: 10.26877/asset.v5i1.14937
D. Marlina, Sephia Febriyanti, Arsyeni Destra Anarchy Arsyandi, Nur Anggreini Dwi Sasangka
Lidocaine HCl injection is a sterile product that is easily contaminated when opened. The temperature and humidity in the injection storage conditions also affect the quality of the drug when viewed from the UV-Vis spectrophotometric absorption value. The aimed of this study is to find out how the effect of storage conditions on the absorption profile of 2% lydocaine HCl injection by UV-Vis spectrophotometry. The study used 27 ampoules of 2% lidocaine HCl injection and was qualitatively analyzed using UV-Vis spectrophotometry. The study lasted for 14 days by first storing the injections in storage conditions at room temperature (25-27℃), cold temperatures (5-10℃), and exposed to Ultraviolet light (380 nm). Based on the results of laboratory tests, the most suitable storage condition used for storing lidocaine HCl injection was cold storage (5-10℃) because there was no shift in the maximum wavelength as occurred during the 14th day of UV exposure storage.
{"title":"The Effect of Storage Conditions on the Absorption Profile of 2% Lydocaine Hydrochloridum Injection by UV-Vis Spectrophotometry","authors":"D. Marlina, Sephia Febriyanti, Arsyeni Destra Anarchy Arsyandi, Nur Anggreini Dwi Sasangka","doi":"10.26877/asset.v5i1.14937","DOIUrl":"https://doi.org/10.26877/asset.v5i1.14937","url":null,"abstract":"Lidocaine HCl injection is a sterile product that is easily contaminated when opened. The temperature and humidity in the injection storage conditions also affect the quality of the drug when viewed from the UV-Vis spectrophotometric absorption value. The aimed of this study is to find out how the effect of storage conditions on the absorption profile of 2% lydocaine HCl injection by UV-Vis spectrophotometry. The study used 27 ampoules of 2% lidocaine HCl injection and was qualitatively analyzed using UV-Vis spectrophotometry. The study lasted for 14 days by first storing the injections in storage conditions at room temperature (25-27℃), cold temperatures (5-10℃), and exposed to Ultraviolet light (380 nm). Based on the results of laboratory tests, the most suitable storage condition used for storing lidocaine HCl injection was cold storage (5-10℃) because there was no shift in the maximum wavelength as occurred during the 14th day of UV exposure storage.","PeriodicalId":414022,"journal":{"name":"Advance Sustainable Science Engineering and Technology","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114491441","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}
Pub Date : 2023-04-30DOI: 10.26877/asset.v5i1.13854
Muhammad Zaenal Arifin, Muhammad Amiruddin, Margono Margono
The use of energy is basically very much needed in everyday life. Energy that is widely used is electrical energy, because electricity is one of the important factors in human life. Some electrical energy producers, in the country use fossil fuel sources such as coal and petroleum, and fossil energy is not renewable. Therefore, the government through the Regulation of the Minister of Energy and Mineral Resources number 14 of 2012 regulates energy management to control energy consumption in order to achieve effective and efficient energy utilization. PGRI Semarang University [L1] as an academic institution uses a lot of non-linear loads for administrative, teaching, laboratory and other supporting activities. Based on the analysis of data obtained at the Center Building of PGRI Semarang University experiencing an imbalance, the condition is not in accordance with the standards and risks increasing power losses. Seeing these conditions, recommendations were obtained that can be implemented at the Center Building of PGRI Semarang University, namely, balancing the load of phases R, S, T to reduce current imbalances. From the load imbalance, there were power losses on the neutral wire of 889,363 kW and power usage for one day in the R, S, T phases of 15,497,991 kW
{"title":"Power Losses Caused by Load Imbalance in the Central Building of PGRI Semarang University","authors":"Muhammad Zaenal Arifin, Muhammad Amiruddin, Margono Margono","doi":"10.26877/asset.v5i1.13854","DOIUrl":"https://doi.org/10.26877/asset.v5i1.13854","url":null,"abstract":"The use of energy is basically very much needed in everyday life. Energy that is widely used is electrical energy, because electricity is one of the important factors in human life. Some electrical energy producers, in the country use fossil fuel sources such as coal and petroleum, and fossil energy is not renewable. Therefore, the government through the Regulation of the Minister of Energy and Mineral Resources number 14 of 2012 regulates energy management to control energy consumption in order to achieve effective and efficient energy utilization. PGRI Semarang University [L1] as an academic institution uses a lot of non-linear loads for administrative, teaching, laboratory and other supporting activities. Based on the analysis of data obtained at the Center Building of PGRI Semarang University experiencing an imbalance, the condition is not in accordance with the standards and risks increasing power losses. Seeing these conditions, recommendations were obtained that can be implemented at the Center Building of PGRI Semarang University, namely, balancing the load of phases R, S, T to reduce current imbalances. From the load imbalance, there were power losses on the neutral wire of 889,363 kW and power usage for one day in the R, S, T phases of 15,497,991 kW ","PeriodicalId":414022,"journal":{"name":"Advance Sustainable Science Engineering and Technology","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131550572","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}
Pub Date : 2023-04-30DOI: 10.26877/asset.v5i1.15036
Saifun Hakim, H. Prastawa, N. Susanto
There are many brands of two-wheeled vehicles, one of which is Honda. Entering 1982 to 1984 Honda released the CB 100 and CB 125 with a more attractive appearance. In the type of CB in 1978 to Tiger Revo 2012 has a change in shape that shows the development of innovation. To fulfil the demands of work in the workshop, mechanics experience various types of movements such as moving, bending, turning, holding machines and installing manually without the help of ergonomic aids. This study was conducted on 5 workshop mechanics located in 33 districts/cities in Central Java province. The research results from 5 mechanics resulted in a high risk level using the NERPA, WERA and KIM methods. Then the improvement proposal is made with the design of a tool design in the form of a mechanical work table so that it can reduce the occurrence of Musculoskeletal Disorders. in calculation with tools to disassembling the machine obtained results in the NERPA method of 4 which means the activity has a medium risk. In the WERA method assessment, the final risk value is 33 with a medium risk value. The third calculation using KIM obtained a final risk value of 40 at level 2, meaning that the intensity increased slightly. The calculation of raising the machine obtained a NERPA value of 4 with a medium risk. The WERA method obtained a value of 38 with medium risk. The third calculation using KIM obtained a value of 35 with a level 2 value.
{"title":"Ergonomic Evaluation of Mechanical Workshop Activities to Reduce Musculoskeletal Disorders","authors":"Saifun Hakim, H. Prastawa, N. Susanto","doi":"10.26877/asset.v5i1.15036","DOIUrl":"https://doi.org/10.26877/asset.v5i1.15036","url":null,"abstract":"There are many brands of two-wheeled vehicles, one of which is Honda. Entering 1982 to 1984 Honda released the CB 100 and CB 125 with a more attractive appearance. In the type of CB in 1978 to Tiger Revo 2012 has a change in shape that shows the development of innovation. To fulfil the demands of work in the workshop, mechanics experience various types of movements such as moving, bending, turning, holding machines and installing manually without the help of ergonomic aids. This study was conducted on 5 workshop mechanics located in 33 districts/cities in Central Java province. The research results from 5 mechanics resulted in a high risk level using the NERPA, WERA and KIM methods. Then the improvement proposal is made with the design of a tool design in the form of a mechanical work table so that it can reduce the occurrence of Musculoskeletal Disorders. in calculation with tools to disassembling the machine obtained results in the NERPA method of 4 which means the activity has a medium risk. In the WERA method assessment, the final risk value is 33 with a medium risk value. The third calculation using KIM obtained a final risk value of 40 at level 2, meaning that the intensity increased slightly. The calculation of raising the machine obtained a NERPA value of 4 with a medium risk. The WERA method obtained a value of 38 with medium risk. The third calculation using KIM obtained a value of 35 with a level 2 value.","PeriodicalId":414022,"journal":{"name":"Advance Sustainable Science Engineering and Technology","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128571053","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}
Pub Date : 2023-04-30DOI: 10.26877/asset.v5i1.15111
Teodora Maria Fernandes Brito Da silva
Condensate Polishing System (CPS) regeneration waste from PT. Bhimasena Power Indonesia has an ammonia level of 932 mg N/L. Therefore, research on reducing dissolved ammonia waste is very important. Research gaps in reducing dissolved ammonia waste include the effects of time variations and dissolved ammonia concentrations, the effect of water quality, and the impact of using methods on the environment. The purpose of this study was to determine the effect of variations in pH and temperature on the effectiveness of separating ammonia waste and to obtain optimum pH and temperature values for the separation of dissolved ammonia waste. The method used in this experiment is the stripper method. The results showed that the process of reducing dissolved ammonia using the stripper method reached an optimum value at a temperature of 45 °C and pH 12. Under these conditions, a reduction value of 0.75 mg N/L was obtained. So it can be concluded that the stripper method can reduce dissolved ammonia waste properly. The impact of this research can develop a more effective and environmentally friendly waste treatment method
来自PT. Bhimasena Power Indonesia的冷凝水抛光系统(CPS)再生废物的氨水平为932 mg N/L。因此，减少溶解氨废物的研究具有十分重要的意义。减少溶解氨废物的研究空白包括时间变化和溶解氨浓度的影响、水质的影响以及使用方法对环境的影响。本研究的目的是确定pH和温度的变化对分离氨废物效果的影响，并获得分离溶解氨废物的最佳pH和温度值。本实验采用的方法是脱模法。结果表明，汽提法还原溶解氨的最佳工艺条件为温度45℃，pH值12。在此条件下，得到了0.75 mg N/L的还原值。综上所述，汽提塔法可以较好地减少溶解氨废物。本研究的影响可以开发出更有效、更环保的废物处理方法
{"title":"Reduction Of Dissolved Ammonia with the Stripper Method in pH and Temperature Variations","authors":"Teodora Maria Fernandes Brito Da silva","doi":"10.26877/asset.v5i1.15111","DOIUrl":"https://doi.org/10.26877/asset.v5i1.15111","url":null,"abstract":"Condensate Polishing System (CPS) regeneration waste from PT. Bhimasena Power Indonesia has an ammonia level of 932 mg N/L. Therefore, research on reducing dissolved ammonia waste is very important. Research gaps in reducing dissolved ammonia waste include the effects of time variations and dissolved ammonia concentrations, the effect of water quality, and the impact of using methods on the environment. The purpose of this study was to determine the effect of variations in pH and temperature on the effectiveness of separating ammonia waste and to obtain optimum pH and temperature values for the separation of dissolved ammonia waste. The method used in this experiment is the stripper method. The results showed that the process of reducing dissolved ammonia using the stripper method reached an optimum value at a temperature of 45 °C and pH 12. Under these conditions, a reduction value of 0.75 mg N/L was obtained. So it can be concluded that the stripper method can reduce dissolved ammonia waste properly. The impact of this research can develop a more effective and environmentally friendly waste treatment method","PeriodicalId":414022,"journal":{"name":"Advance Sustainable Science Engineering and Technology","volume":"78 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127294024","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}
Minimizing waste with independent waste management realizes the 3-R principle, one of which is the waste bank program. There are 448 waste banks in the entire city of Yogyakarta, which is about 73% of the total RW in the city of Yogyakarta. However, from this data, the visual form of the spatial distribution of waste banks in Yogyakarta City has yet to be discovered with certainty. This quantitative research analyzes the distribution pattern of waste banks in Yogyakarta City using the Nearest Neighbor Analysis method. The objectives of this study are (1) to determine the visual form of the spatial distribution of waste banks in the city of Yogyakarta; (2) to analyze the distribution pattern of waste banks in the city of Yogyakarta. The results are (1) The visual form of the spatial distribution of waste banks in Yogyakarta City is spread in almost all areas of Yogyakarta City, with an area of 32.5 km2. Waste Banks that have been plotted locations are 448 waste banks; (2) The distribution pattern of the waste bank in the city of Yogyakarta is dispersed or uniform/regular distribution pattern.
{"title":"Analysis Spatial Pattern Garbage Bank using Web Geographic Information System in Yogyakarta City","authors":"Vidyana Arsanti, Rizqi Sukma Kharisma, Sidiq Arfianto","doi":"10.26877/asset.v5i1.15139","DOIUrl":"https://doi.org/10.26877/asset.v5i1.15139","url":null,"abstract":"Minimizing waste with independent waste management realizes the 3-R principle, one of which is the waste bank program. There are 448 waste banks in the entire city of Yogyakarta, which is about 73% of the total RW in the city of Yogyakarta. However, from this data, the visual form of the spatial distribution of waste banks in Yogyakarta City has yet to be discovered with certainty. This quantitative research analyzes the distribution pattern of waste banks in Yogyakarta City using the Nearest Neighbor Analysis method. The objectives of this study are (1) to determine the visual form of the spatial distribution of waste banks in the city of Yogyakarta; (2) to analyze the distribution pattern of waste banks in the city of Yogyakarta. The results are (1) The visual form of the spatial distribution of waste banks in Yogyakarta City is spread in almost all areas of Yogyakarta City, with an area of 32.5 km2. Waste Banks that have been plotted locations are 448 waste banks; (2) The distribution pattern of the waste bank in the city of Yogyakarta is dispersed or uniform/regular distribution pattern.","PeriodicalId":414022,"journal":{"name":"Advance Sustainable Science Engineering and Technology","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130341760","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}
Pub Date : 2023-04-14DOI: 10.26877/asset.v5i1.15223
R. Umiyati, Putri Fara Dila, Dani Satrio Wicaksono, M. Ferdiansyah, R. M. D. Ujianti
Fish flour is an important source of animal protein because it contains complex amino acids such as lysine and metinine which are found in animal and fish feeds. Biscuits are snacks that are easy to get and are liked by many people. The purpose of this study was to determine the effect of different characteristics of catfish flour biscuits with the addition of each concentration treatment on the physical, chemical and organoleptic properties of catfish biscuits (0%, 5%, 10%, 15%). The research method used a Completely Randomized Design of One Component Factors with four treatments B0, B1, B2 and B3. Research analysis carried out included chemical properties (moisture content, ash content, protein content, fat content) and color test. The results of this study indicate that biscuits with the addition of catfish flour obtained a moisture content between 4.96-4.53%, ash content 2.19-4.07%, fat content 62.95-78.23%, protein content 6.74 -8.68%, Color between 10.73-7.73%, Texture between 24.01-23.18%. The color test results with the addition of catfish flour can reduce the value of the color test.
{"title":"Physical and Chemical Characteristics of Biscuits with Catfish Flour (Clarias batrachus) Addition","authors":"R. Umiyati, Putri Fara Dila, Dani Satrio Wicaksono, M. Ferdiansyah, R. M. D. Ujianti","doi":"10.26877/asset.v5i1.15223","DOIUrl":"https://doi.org/10.26877/asset.v5i1.15223","url":null,"abstract":"Fish flour is an important source of animal protein because it contains complex amino acids such as lysine and metinine which are found in animal and fish feeds. Biscuits are snacks that are easy to get and are liked by many people. The purpose of this study was to determine the effect of different characteristics of catfish flour biscuits with the addition of each concentration treatment on the physical, chemical and organoleptic properties of catfish biscuits (0%, 5%, 10%, 15%). The research method used a Completely Randomized Design of One Component Factors with four treatments B0, B1, B2 and B3. Research analysis carried out included chemical properties (moisture content, ash content, protein content, fat content) and color test. The results of this study indicate that biscuits with the addition of catfish flour obtained a moisture content between 4.96-4.53%, ash content 2.19-4.07%, fat content 62.95-78.23%, protein content 6.74 -8.68%, Color between 10.73-7.73%, Texture between 24.01-23.18%. The color test results with the addition of catfish flour can reduce the value of the color test. ","PeriodicalId":414022,"journal":{"name":"Advance Sustainable Science Engineering and Technology","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131743966","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}
Pub Date : 2022-11-06DOI: 10.26877/asset.v4i2.12950
G. S. Robles, M. T. Espino, R. N. M. Delda, J. Dizon
This paper discusses some basic metrology considerations when 3D printing. The importance of ensuring correct measurements is highlighted especially for practical applications. The last part of the paper presents sample dimensional measurements of 3D-printed parts with varying sizes, infill density and layer thickness. Different cube sizes of 10 mm3, 15 mm3, and 20 mm3 has been produced using a commercially-available 3D printer. Acrylonitrile butadiene styrene (ABS) has been used for the experiments. Important observations and insights are presented.
{"title":"Significance of Fundamental Metrology of 3D-Printed Parts for Engineering Design: Dimensional Accuracy","authors":"G. S. Robles, M. T. Espino, R. N. M. Delda, J. Dizon","doi":"10.26877/asset.v4i2.12950","DOIUrl":"https://doi.org/10.26877/asset.v4i2.12950","url":null,"abstract":"This paper discusses some basic metrology considerations when 3D printing. The importance of ensuring correct measurements is highlighted especially for practical applications. The last part of the paper presents sample dimensional measurements of 3D-printed parts with varying sizes, infill density and layer thickness. Different cube sizes of 10 mm3, 15 mm3, and 20 mm3 has been produced using a commercially-available 3D printer. Acrylonitrile butadiene styrene (ABS) has been used for the experiments. Important observations and insights are presented.","PeriodicalId":414022,"journal":{"name":"Advance Sustainable Science Engineering and Technology","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115634067","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}
Pub Date : 2022-11-06DOI: 10.26877/asset.v4i2.13025
Rheianne Mae C. Herrera, Marsha Blanco, John Carlo C. Carabeo, Faye Dannah B. Ramilo, John Renmar D. De Silva, Neil Oliver M. Nuqui, M. T. Espino, B. Tuazon, J. Dizon
Although hand tools serve as an instrument for extending one’s capabilities through the use of hands, the comfort it brings is important especially since the welfare of the user is at stake. Aside from using the hand tools repetitively and with an awkward posture, the tool handle compositions and design also contribute to accumulating some work-related musculoskeletal disorders that require further attention in the long run. To provide a long-term solution, 3D-printed new designs of six commonly used hand tools that fit the average hand measurements of Filipinos have been developed. The hand tools are printed using two filaments namely; thermoplastic polyurethane (TPU) which was found to be skin-friendly and polylactic acid (PLA) which is proven to be more functional, both are used on the outer and inner layer of the handle, respectively. The 3D-printed tool handles were evaluated through the use of a comfort questionnaire for hand tools distributed to 10 respondents per tool handle testing, results show that 3D-printed tool handles are found to be more comfortable and convenient rather than the commercial ones. Meanwhile, the researchers note that the adequate length of tool handles may also vary according to functions and not rely alone on the average hand measurements.
{"title":"3D-Printed Ergonomic Tool Handles","authors":"Rheianne Mae C. Herrera, Marsha Blanco, John Carlo C. Carabeo, Faye Dannah B. Ramilo, John Renmar D. De Silva, Neil Oliver M. Nuqui, M. T. Espino, B. Tuazon, J. Dizon","doi":"10.26877/asset.v4i2.13025","DOIUrl":"https://doi.org/10.26877/asset.v4i2.13025","url":null,"abstract":"Although hand tools serve as an instrument for extending one’s capabilities through the use of hands, the comfort it brings is important especially since the welfare of the user is at stake. Aside from using the hand tools repetitively and with an awkward posture, the tool handle compositions and design also contribute to accumulating some work-related musculoskeletal disorders that require further attention in the long run. To provide a long-term solution, 3D-printed new designs of six commonly used hand tools that fit the average hand measurements of Filipinos have been developed. The hand tools are printed using two filaments namely; thermoplastic polyurethane (TPU) which was found to be skin-friendly and polylactic acid (PLA) which is proven to be more functional, both are used on the outer and inner layer of the handle, respectively. The 3D-printed tool handles were evaluated through the use of a comfort questionnaire for hand tools distributed to 10 respondents per tool handle testing, results show that 3D-printed tool handles are found to be more comfortable and convenient rather than the commercial ones. Meanwhile, the researchers note that the adequate length of tool handles may also vary according to functions and not rely alone on the average hand measurements.","PeriodicalId":414022,"journal":{"name":"Advance Sustainable Science Engineering and Technology","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129665335","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}
Pub Date : 2022-11-06DOI: 10.26877/asset.v4i2.13343
Afviva Nissa Vahendra, Asep Bayu Dani Nandiayanto
This study aims to examine the development of research related to Graphene-Based Surfaced-Enhanced Raman Scattering (SERS) through a bibliometric approach to computational mapping analysis using VOSviewer. The acquisition of article data was obtained from the Google Scholar database using the publish or perish reference manager application. The keywords used to guide the process of searching for the title and abstract of the article were "Graphene, SER, surface enhanced raman scattering, nanoparticle". A total of 920 articles were obtained which were considered related to the topic of this research. The study period used as study material is Google Scholar indexed articles for the last 10 years (2012 to 2022). The results showed that the Graphene-Based Surfaced-Enhanced Raman Scattering (SERS) research can be separated into 4 terms:Raman Spectroscopy, Graphene, Nanoparticle and Surface. The term “Raman Spectroscopy” is associated with 189 links with total link strength 1539 The term “Graphene” has 198 links with total link strength 2036 the term “Nanoparticle” has 199 links with total link strength in 2739 and the term “Surface” has 189 links with total link strength 1651. The results of the analysis of the development of Graphene-Based Surfaced-Enhanced Raman Scattering (SERS) in the last 10 years show an increase. However, in 2020-2021, there was a slight decrease from 136 in 2020 to 135 in 2021. The increase in research occurred from 2014 - 2020 (49, 63, 80, 99, 105,116 and 136 publications per year respectively). While the popular Graphene-Based Surfaced-Enhanced Raman Scattering (SERS) research was carried out in 2020, there were 136 studies. From the results of research on article data using VOS viewer on Graphene-Based Surfaced-Enhanced Raman Scattering (SERS) and its relationship to the problem area, the results show that there has been an increase over the last 10 years. This study can be an initial consideration for future researchers who will conduct research related to this research topic.
本研究旨在通过使用VOSviewer进行计算映射分析的文献计量学方法来研究与石墨烯表面增强拉曼散射(SERS)相关的研究进展。文章数据的获取是从谷歌Scholar数据库中使用publish or destroy reference manager应用程序获得的。用于引导搜索文章标题和摘要过程的关键词是“石墨烯，SER，表面增强拉曼散射，纳米颗粒”。共获得920篇被认为与本研究主题相关的文章。作为研究材料的研究周期为近10年(2012 - 2022)的谷歌篇Scholar索引文章。结果表明，基于石墨烯的表面增强拉曼散射(SERS)研究可分为拉曼光谱、石墨烯、纳米粒子和表面4个方面。“石墨烯”一词有198个链接，总链接强度为2036;“纳米粒子”一词有199个链接，总链接强度为2739;“表面”一词有189个链接，总链接强度为1651。分析了近10年来石墨烯基表面增强拉曼散射(SERS)技术的发展情况。然而，在2020-2021年，从2020年的136个略微减少到2021年的135个。2014年至2020年期间，研究数量有所增加(分别为每年49篇、63篇、80篇、99篇、105,116篇和136篇)。而流行的基于石墨烯的表面增强拉曼散射(SERS)研究是在2020年进行的，共有136项研究。利用VOS观察器对文章数据进行研究，发现石墨烯表面增强拉曼散射(SERS)与问题区域的关系在近10年间有所增加。本研究可作为未来研究人员开展本研究课题相关研究的初步考虑。
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