Pub Date : 2023-11-02DOI: 10.18860/neu.v16i1.20641
Mardame Pangihutan Sinaga, Dolfie Paulus Pandara, Ukta Indra Nyuswantoro, Budiman Nasution, Ruben Cornelius Siagian
This study aims to investigate essential concepts in quantum mechanics and theoretical physics, with an emphasis on the 1+1 dimension. We examine the Dirac equation for relativistic spin-1/2 particles, the Time-Dependent Schrödinger Equation in 1+1 spacetime with flat conformal metric, and connect them to the Dirac equation. Additionally, we explore the Alcubierre Metric related to warp drive, particle modeling in a harmonic potential using the Schrödinger Equation, and the Gödel Metric Solution to depict the peculiarities of spacetime. The research aims to deepen the understanding of these concepts, identify theoretical implications, and their potential applications. This research aims to enhance the understanding of fundamental physics, assist in the development of future technologies, and provide deeper insights into the universe. Its benefits lie in contributing to theoretical understanding in physics, which can spark the development of new theories. This study is limited to physics concepts in the 1+1 dimensions, without empirical experiments or practical applications. The primary focus is on the theoretical analysis of these concepts. The results of this research have potential theoretical implications in understanding basic physics and spacetime phenomena. The simplification and connections between these concepts can aid in the development of new theories in theoretical physics. The uniqueness of this research lies in its integrative approach to quantum mechanics and theoretical physics concepts in the 1+1 dimension, which may not have been extensively explored previously. Through this research, we have investigated several key concepts in quantum mechanics and theoretical physics in the 1+1 dimension. These findings can make a significant contribution to our understanding of the universe and the potential development of new theories in physics.
{"title":"Visualizations and Analyses of Quantum Behavior, Spacetime Curvature, and Metric Relationships in Relativistic Physics","authors":"Mardame Pangihutan Sinaga, Dolfie Paulus Pandara, Ukta Indra Nyuswantoro, Budiman Nasution, Ruben Cornelius Siagian","doi":"10.18860/neu.v16i1.20641","DOIUrl":"https://doi.org/10.18860/neu.v16i1.20641","url":null,"abstract":"This study aims to investigate essential concepts in quantum mechanics and theoretical physics, with an emphasis on the 1+1 dimension. We examine the Dirac equation for relativistic spin-1/2 particles, the Time-Dependent Schrödinger Equation in 1+1 spacetime with flat conformal metric, and connect them to the Dirac equation. Additionally, we explore the Alcubierre Metric related to warp drive, particle modeling in a harmonic potential using the Schrödinger Equation, and the Gödel Metric Solution to depict the peculiarities of spacetime. The research aims to deepen the understanding of these concepts, identify theoretical implications, and their potential applications. This research aims to enhance the understanding of fundamental physics, assist in the development of future technologies, and provide deeper insights into the universe. Its benefits lie in contributing to theoretical understanding in physics, which can spark the development of new theories. This study is limited to physics concepts in the 1+1 dimensions, without empirical experiments or practical applications. The primary focus is on the theoretical analysis of these concepts. The results of this research have potential theoretical implications in understanding basic physics and spacetime phenomena. The simplification and connections between these concepts can aid in the development of new theories in theoretical physics. The uniqueness of this research lies in its integrative approach to quantum mechanics and theoretical physics concepts in the 1+1 dimension, which may not have been extensively explored previously. Through this research, we have investigated several key concepts in quantum mechanics and theoretical physics in the 1+1 dimension. These findings can make a significant contribution to our understanding of the universe and the potential development of new theories in physics.","PeriodicalId":17685,"journal":{"name":"Jurnal Neutrino","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135934094","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 : 2023-10-30DOI: 10.18860/neu.v16i1.21044
Esmar Budi, Widyaningrum Indrasari, Riser Fahdiran, Hadi Nasbey
Electrodeposited nickel coating has excellent physical and mechanical properties, however it does not withstand to high temperature oxidation for long time. The addition of nitride phase within the nickel based coating improve the oxidation resistance through dense surface morphology improvement. A preliminary study was performed to investigate the high temperature oxidation behavior on the coating morphology after exposed at high temperature. The Ni-TiN/Si3N4 composite coatings deposited at electrodeposition temperature of 35 ℃, 40 ℃ and 50 ℃. The electrolyte consists of 0.17 M NiCl2.6H2O, 0.38 M Ni2SO4.6H2O, 6 g/L TiN, 0,6 g/L Si3N4, 40 g/L H3BO3, 0,6 g/L Sodium Dodecyl Sulfate (SDS). High temperature oxidation process on the samples was performed by heating at temperature of 700 ℃ for 2 hours within air conditions. The morphology and composition samples were characterized by using SEM/EDS. In general, the result showed that the morphology of Ni-TiN/Si3N4 composite coatings became rough due to the oxidation process. Elements coating such as Ni, Ti, Si and N were disappeared after the oxidation process due to the outward diffusion process.
电沉积镍镀层具有优良的物理力学性能，但不能长时间经受高温氧化。在镍基镀层中加入氮化相，通过致密的表面形貌改善，提高了镀层的抗氧化性能。初步研究了涂层高温暴露后的高温氧化行为对涂层形貌的影响。在35℃、40℃和50℃的电沉积温度下制备了Ni-TiN/Si3N4复合镀层。电解液由0.17 M NiCl2.6H2O、0.38 M Ni2SO4.6H2O、6 g/L TiN、0.6 g/L Si3N4、40 g/L H3BO3、0.6 g/L十二烷基硫酸钠(SDS)组成。在空气条件下，在700℃下加热2小时，对样品进行高温氧化处理。采用SEM/EDS对样品的形貌和组成进行了表征。总的来说，结果表明Ni-TiN/Si3N4复合镀层由于氧化过程而变得粗糙。Ni、Ti、Si、N等元素涂层在氧化后由于向外扩散而消失。
{"title":"MORPHOLOGY OF Ni-TiN/Si3N4 COMPOSITE COATINGS AT HIGH-TEMPERATURE OXIDATION","authors":"Esmar Budi, Widyaningrum Indrasari, Riser Fahdiran, Hadi Nasbey","doi":"10.18860/neu.v16i1.21044","DOIUrl":"https://doi.org/10.18860/neu.v16i1.21044","url":null,"abstract":"Electrodeposited nickel coating has excellent physical and mechanical properties, however it does not withstand to high temperature oxidation for long time. The addition of nitride phase within the nickel based coating improve the oxidation resistance through dense surface morphology improvement. A preliminary study was performed to investigate the high temperature oxidation behavior on the coating morphology after exposed at high temperature. The Ni-TiN/Si3N4 composite coatings deposited at electrodeposition temperature of 35 ℃, 40 ℃ and 50 ℃. The electrolyte consists of 0.17 M NiCl2.6H2O, 0.38 M Ni2SO4.6H2O, 6 g/L TiN, 0,6 g/L Si3N4, 40 g/L H3BO3, 0,6 g/L Sodium Dodecyl Sulfate (SDS). High temperature oxidation process on the samples was performed by heating at temperature of 700 ℃ for 2 hours within air conditions. The morphology and composition samples were characterized by using SEM/EDS. In general, the result showed that the morphology of Ni-TiN/Si3N4 composite coatings became rough due to the oxidation process. Elements coating such as Ni, Ti, Si and N were disappeared after the oxidation process due to the outward diffusion process.","PeriodicalId":17685,"journal":{"name":"Jurnal Neutrino","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136105736","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 : 2023-10-30DOI: 10.18860/neu.v16i1.23651
Much. Ananda Fikri Alghufroni, Imam Saukani, Denda Dewatama
Learning media is one of the means needed to achieve the perfect quality of education. In the Process Control System Practicum Laboratory of Malang State Polytechnic, the number of learning module plants is limited.. It is necessary to add a new learning module, therefore a plant is designed about regulating the level of water turbidity. In this plant, a cascade control method is used to regulate the mixture of clear water and water with high turbidity in order to obtain water with a certain level of turbidity. The results of the application of the cascade control method using the P controller in the inner loop (flow) with a value of K_p=155 obtained rise time 3s, settling time 4s, and steady state error 15%, in the outer loop (turbidity) was also used P controller with a value of K_p=1.67 resulting rise time 14s, settling time 30s, and steady state error 60%. The high steady state error occurs because the plant response of this system has characteristics that were too fast so that the cascade control was unable to overcome the error. In addition, the SEN0189 turbidity sensor with the accuracy of reading the water turbidity value of 10 NTU every 1mV voltage change and easily exposed to noise was also the cause of this system plant to produce a high steady state error.
{"title":"IMPLEMENTATION OF CASCADE CONTROL IN WATER TURBIDITY LEVEL SETTINGS FOR THE PROCESS CONTROL SYSTEM LEARNING MODULE","authors":"Much. Ananda Fikri Alghufroni, Imam Saukani, Denda Dewatama","doi":"10.18860/neu.v16i1.23651","DOIUrl":"https://doi.org/10.18860/neu.v16i1.23651","url":null,"abstract":"Learning media is one of the means needed to achieve the perfect quality of education. In the Process Control System Practicum Laboratory of Malang State Polytechnic, the number of learning module plants is limited.. It is necessary to add a new learning module, therefore a plant is designed about regulating the level of water turbidity. In this plant, a cascade control method is used to regulate the mixture of clear water and water with high turbidity in order to obtain water with a certain level of turbidity. The results of the application of the cascade control method using the P controller in the inner loop (flow) with a value of K_p=155 obtained rise time 3s, settling time 4s, and steady state error 15%, in the outer loop (turbidity) was also used P controller with a value of K_p=1.67 resulting rise time 14s, settling time 30s, and steady state error 60%. The high steady state error occurs because the plant response of this system has characteristics that were too fast so that the cascade control was unable to overcome the error. In addition, the SEN0189 turbidity sensor with the accuracy of reading the water turbidity value of 10 NTU every 1mV voltage change and easily exposed to noise was also the cause of this system plant to produce a high steady state error.","PeriodicalId":17685,"journal":{"name":"Jurnal Neutrino","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136105740","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}
The Standard Model is a model of particle physics in which one Higgs particle has been confirmed with a mass of 126 GeV. In 2016 some discoveries made it possible to have other scalar particles similar to the Higgs. The modified left-right symmetric model extends the standard model with an expanded scalar sector. There are ϕ_L and Δ_L left sector scalar particles, ϕ_L and Δ_L right sector scalar particles and two singlet η and ξ scalar particles. Therefore, this research objective is to analyze of the possibility of a Higgs interaction with other scalar particles. The method of this research is using a Feynman diagram to describe the interaction terms at the Higgs Potential. The interaction probability is sought using the Feynman rule for Toy Theory. The decay rate uses the Golden Rule. When the universe's temperature reaches the mass of η, the scalar becomes non-relativistic and decays into ϕ_L and ϕ_R. The scalar ξ is scattered into ϕ_L through the η scalar propagator and into ϕ_R. The scalars Δ_L and Δ_R do not decay, they only scatter into ϕ_L and ϕ_R. The η and ξ scalars have transformed into ϕ_L in the left sector and ϕ_R in the right sector, and only ϕ_L in the sectors are likely to be detected as the Higgs Standard Model.
{"title":"SCALAR INTERACTIONS IN THE MODIFIED LEFT-RIGHT SYMMETRY MODEL","authors":"Istikomah Istikomah, Nurul Embun Isnawati, Heni Sumarti, Sheilla Rully Anggita","doi":"10.18860/neu.v16i1.20518","DOIUrl":"https://doi.org/10.18860/neu.v16i1.20518","url":null,"abstract":"The Standard Model is a model of particle physics in which one Higgs particle has been confirmed with a mass of 126 GeV. In 2016 some discoveries made it possible to have other scalar particles similar to the Higgs. The modified left-right symmetric model extends the standard model with an expanded scalar sector. There are ϕ_L and Δ_L left sector scalar particles, ϕ_L and Δ_L right sector scalar particles and two singlet η and ξ scalar particles. Therefore, this research objective is to analyze of the possibility of a Higgs interaction with other scalar particles. The method of this research is using a Feynman diagram to describe the interaction terms at the Higgs Potential. The interaction probability is sought using the Feynman rule for Toy Theory. The decay rate uses the Golden Rule. When the universe's temperature reaches the mass of η, the scalar becomes non-relativistic and decays into ϕ_L and ϕ_R. The scalar ξ is scattered into ϕ_L through the η scalar propagator and into ϕ_R. The scalars Δ_L and Δ_R do not decay, they only scatter into ϕ_L and ϕ_R. The η and ξ scalars have transformed into ϕ_L in the left sector and ϕ_R in the right sector, and only ϕ_L in the sectors are likely to be detected as the Higgs Standard Model.","PeriodicalId":17685,"journal":{"name":"Jurnal Neutrino","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136105763","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 : 2023-10-30DOI: 10.18860/neu.v16i1.18017
Dian Eko Pambudi, Arista Romadani
The types of particles used in this research are Fermion particles and Boson particles. So to describe the movement of Fermion and Boson particles, the Dirac equation and Klein-Gordon equation are used. These two equations combine relativity and quantum principles. In this research, we will replace flat spacetime in the Dirac equation and Klein-Gordon equation with Kerr spacetime. Kerr spacetime describes the effects of gravity on Fermino and Boson particles. To determine the effect of gravity, a neutron interferometer is used through the principle of phase shift. The Hamiltonian value will be obtained. In the Dirac equation, the effect of gravity only appears on the Hamiltonian . The phase shift values are dan . In the Klein-Gordon equation, the effect of gravity only appears on the Hamiltonian . The phase shift value is . The Dirac equation contains more Hamiltonian terms that are not found in the Klein-Gordon equation. The more Hamiltonian terms, the more confounding Hamiltonian is in it. Confounding Hamiltonian will appear when the calculation involves the quantum part. From the calculation results, it is found that the Dirac equation has better accuracy than the Klein-Gordon equation when viewed from the calculation results of each phase shift.
{"title":"STUDY OF THE GRAVITY EFFECTS OF FERMION AND BOSON PARTICLES IN CURVED SPACETIME","authors":"Dian Eko Pambudi, Arista Romadani","doi":"10.18860/neu.v16i1.18017","DOIUrl":"https://doi.org/10.18860/neu.v16i1.18017","url":null,"abstract":"The types of particles used in this research are Fermion particles and Boson particles. So to describe the movement of Fermion and Boson particles, the Dirac equation and Klein-Gordon equation are used. These two equations combine relativity and quantum principles. In this research, we will replace flat spacetime in the Dirac equation and Klein-Gordon equation with Kerr spacetime. Kerr spacetime describes the effects of gravity on Fermino and Boson particles. To determine the effect of gravity, a neutron interferometer is used through the principle of phase shift. The Hamiltonian value will be obtained. In the Dirac equation, the effect of gravity only appears on the Hamiltonian . The phase shift values are dan . In the Klein-Gordon equation, the effect of gravity only appears on the Hamiltonian . The phase shift value is . The Dirac equation contains more Hamiltonian terms that are not found in the Klein-Gordon equation. The more Hamiltonian terms, the more confounding Hamiltonian is in it. Confounding Hamiltonian will appear when the calculation involves the quantum part. From the calculation results, it is found that the Dirac equation has better accuracy than the Klein-Gordon equation when viewed from the calculation results of each phase shift.","PeriodicalId":17685,"journal":{"name":"Jurnal Neutrino","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136105758","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 : 2022-04-19DOI: 10.18860/neu.v14i2.14131
Gina Fikria, C. Rustana
Biodiesel is a very potential material used as a substitute for diesel fuel derived from petroleum. In manufacture of biodiesel was used waste cooking oil with FFA levels obtained which is 3.1%, so that the transesterification process is directly carried out. This study aims to find out the physical characteristics of biodiesel produced from waste cooking oil with a molar ratio of waste cooking oil to methanol 5:1 and 4:1. Method that used in this research is experiment and analytic of physical characteristics of biodiesel products made from used cooking oil. The results of the physical characteristic test of biodiesel with a ratio of 5:1 and 4:1 showed that the biodiesel density of waste cooking oil had met SNI 04-7182-2012. Viscosity test results showed that biodiesel from waste cooking oil has not met SNI 04-7182-2012. The results of flash point tests showed that biodiesel from waste cooking oil has not met SNI 04-7182-2012. Freezing point test results showed that biodiesel from waste cooking oil had met SNI 04-7182-2012. The results of the heat value test showed that biodiesel from waste cooking oil has not met SNI 04-7182-2012. And the yield shows that biodiesel from waste cooking oil has not produced a significant biodiesel yield.
{"title":"ANALYSIS OF THE PHYSICAL CHARACTERISTICS OF BIODIESEL PRODUCTS MADE FROM USED COOKING OIL","authors":"Gina Fikria, C. Rustana","doi":"10.18860/neu.v14i2.14131","DOIUrl":"https://doi.org/10.18860/neu.v14i2.14131","url":null,"abstract":"Biodiesel is a very potential material used as a substitute for diesel fuel derived from petroleum. In manufacture of biodiesel was used waste cooking oil with FFA levels obtained which is 3.1%, so that the transesterification process is directly carried out. This study aims to find out the physical characteristics of biodiesel produced from waste cooking oil with a molar ratio of waste cooking oil to methanol 5:1 and 4:1. Method that used in this research is experiment and analytic of physical characteristics of biodiesel products made from used cooking oil. The results of the physical characteristic test of biodiesel with a ratio of 5:1 and 4:1 showed that the biodiesel density of waste cooking oil had met SNI 04-7182-2012. Viscosity test results showed that biodiesel from waste cooking oil has not met SNI 04-7182-2012. The results of flash point tests showed that biodiesel from waste cooking oil has not met SNI 04-7182-2012. Freezing point test results showed that biodiesel from waste cooking oil had met SNI 04-7182-2012. The results of the heat value test showed that biodiesel from waste cooking oil has not met SNI 04-7182-2012. And the yield shows that biodiesel from waste cooking oil has not produced a significant biodiesel yield.","PeriodicalId":17685,"journal":{"name":"Jurnal Neutrino","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72687970","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 : 2022-04-19DOI: 10.18860/neu.v14i2.13924
Imam Saukani, Rina Triturani
Indonesia is an archipelago, so many settlements close to the beach or sea. People living in the area are still many who lack clean water. One way to get clean water is sea water by distillation. Distillation is a liquid changes into steam and the steam is cooled back into a liquid. The process of designing and manufacturing distillation in this paper serves to make sea water into fresh water and also to stabilize the temperature during heating. Given these problems required temperature control system. Application of fuzzy logic controllers are expected to solve the problem of temperature stability in sea water distillation equipment. The sensor used is LM 35 sensors as readers seawater temperature is used as a reference to maintain a temperature in the range of 80° -100°C. Fuzzy logic rules are applied has a 9, which is obtained from the membership functions of 3 error and 3 delta error membership functions. Application of Fuzzy Logic Controller When the set point temperature of 85°C temperature response curve is obtained which has a performance controller Error Steady-state = 0.35%, Max Overshoot = 0, settling time = 103 minutes, peak time = 0, rise time = 37 minutes. With the set point of 75°C -99°C then obtained a qualified water quality water temperature of 100°C is worth to drink and has a good time efficiency for distillation temperature.
{"title":"APPLICATION OF LM 35 TEMPERATURE SENSOR FOR SEAWATER DISTILLATION","authors":"Imam Saukani, Rina Triturani","doi":"10.18860/neu.v14i2.13924","DOIUrl":"https://doi.org/10.18860/neu.v14i2.13924","url":null,"abstract":"Indonesia is an archipelago, so many settlements close to the beach or sea. People living in the area are still many who lack clean water. One way to get clean water is sea water by distillation. Distillation is a liquid changes into steam and the steam is cooled back into a liquid. The process of designing and manufacturing distillation in this paper serves to make sea water into fresh water and also to stabilize the temperature during heating. Given these problems required temperature control system. Application of fuzzy logic controllers are expected to solve the problem of temperature stability in sea water distillation equipment. The sensor used is LM 35 sensors as readers seawater temperature is used as a reference to maintain a temperature in the range of 80° -100°C. Fuzzy logic rules are applied has a 9, which is obtained from the membership functions of 3 error and 3 delta error membership functions. Application of Fuzzy Logic Controller When the set point temperature of 85°C temperature response curve is obtained which has a performance controller Error Steady-state = 0.35%, Max Overshoot = 0, settling time = 103 minutes, peak time = 0, rise time = 37 minutes. With the set point of 75°C -99°C then obtained a qualified water quality water temperature of 100°C is worth to drink and has a good time efficiency for distillation temperature.","PeriodicalId":17685,"journal":{"name":"Jurnal Neutrino","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74490026","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 : 2021-12-20DOI: 10.18860/neu.v14i1.13210
Della Yusfita Sari, M. Zamhari, R. Junaidi
The drying process on kemplang crackers is one of the factors that determine the quality of the resulting product. Conventional drying has many disadvantages, namely fluctuating heat and poor hygiene that will affect product quality. So that kemplang crackers can be stored for a long time, it is necessary to reduce the water content of kemplang crackers. Drying kemplang crackers can use a drying rack with a biomass energy source from coconut shells. This study aims to design a tray dryer with biomass energy to obtain dryer performance based on the drying rate and to obtain a product that meets SNI No. 8272-2016. The treatments that were varied were set point temperatures of 55oC, 60oC, 65oC, and 70oC with mass variations of 50 gr, 100 gr, and 150 gr. The results showed that the optimum drying conditions at 70oC for 4 hours with an air velocity of 5.2 m/s2 obtained 9,84% moisture content in 50 gr kemplang crackers, 15.39% in 100 gr crackers and 19,2 in kemplang crackers 150 gr and a drying rate of 0,035028 kg/hour m2. The drying process requires 5,24 kg of dried coconut shell to produce heat energy of 95.358,81024 KJ with a by-product in the form of liquid smoke.
{"title":"DESIGN OF KEMPLANG CRACKERS DRYER USING TRAY DRYER BY UTILIZING BIOMASS ENERGY","authors":"Della Yusfita Sari, M. Zamhari, R. Junaidi","doi":"10.18860/neu.v14i1.13210","DOIUrl":"https://doi.org/10.18860/neu.v14i1.13210","url":null,"abstract":"The drying process on kemplang crackers is one of the factors that determine the quality of the resulting product. Conventional drying has many disadvantages, namely fluctuating heat and poor hygiene that will affect product quality. So that kemplang crackers can be stored for a long time, it is necessary to reduce the water content of kemplang crackers. Drying kemplang crackers can use a drying rack with a biomass energy source from coconut shells. This study aims to design a tray dryer with biomass energy to obtain dryer performance based on the drying rate and to obtain a product that meets SNI No. 8272-2016. The treatments that were varied were set point temperatures of 55oC, 60oC, 65oC, and 70oC with mass variations of 50 gr, 100 gr, and 150 gr. The results showed that the optimum drying conditions at 70oC for 4 hours with an air velocity of 5.2 m/s2 obtained 9,84% moisture content in 50 gr kemplang crackers, 15.39% in 100 gr crackers and 19,2 in kemplang crackers 150 gr and a drying rate of 0,035028 kg/hour m2. The drying process requires 5,24 kg of dried coconut shell to produce heat energy of 95.358,81024 KJ with a by-product in the form of liquid smoke.","PeriodicalId":17685,"journal":{"name":"Jurnal Neutrino","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85853796","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 : 2021-12-20DOI: 10.18860/neu.v14i1.13038
Meri Hamdini, Y. Tiandho
Until now, the world is still facing the spread of the SARS-CoV-2 virus that causes COVID-19. This virus can be transmitted from human to human through droplets, so more vigilance is needed to avoid contracting this virus. One of the steps to minimize the spread of Covid-19 is to wear a face mask. In practice, most people prefer to use cloth masks than disposable medical masks because they are cheap and reusable. Cloth pore size influences the filtering ability of the cloth masks. Therefore, it is necessary to analyze the efficiencies of the cloth masks. In this study, we developed a method for measuring the pores of a cloth mask using a smartphone. In this study, we developed a method for measuring the pores of a cloth mask using a smartphone. We used the camera zoom application on a smartphone and analyzed the image using image processing software, ImageJ. We appliedHuang's algorithm to adjust the image binarization threshold then calculated the Feret diameter as the pore size of the mask. According to the analysis, the pore size ranged from 0.133 to 0.232 mm, and the efficiency ranged from 77.4 to 82.6%.
{"title":"SMARTPHONE-BASED ANALYSIS OF CLOTH MASKS PORES SIZE","authors":"Meri Hamdini, Y. Tiandho","doi":"10.18860/neu.v14i1.13038","DOIUrl":"https://doi.org/10.18860/neu.v14i1.13038","url":null,"abstract":"Until now, the world is still facing the spread of the SARS-CoV-2 virus that causes COVID-19. This virus can be transmitted from human to human through droplets, so more vigilance is needed to avoid contracting this virus. One of the steps to minimize the spread of Covid-19 is to wear a face mask. In practice, most people prefer to use cloth masks than disposable medical masks because they are cheap and reusable. Cloth pore size influences the filtering ability of the cloth masks. Therefore, it is necessary to analyze the efficiencies of the cloth masks. In this study, we developed a method for measuring the pores of a cloth mask using a smartphone. In this study, we developed a method for measuring the pores of a cloth mask using a smartphone. We used the camera zoom application on a smartphone and analyzed the image using image processing software, ImageJ. We appliedHuang's algorithm to adjust the image binarization threshold then calculated the Feret diameter as the pore size of the mask. According to the analysis, the pore size ranged from 0.133 to 0.232 mm, and the efficiency ranged from 77.4 to 82.6%.","PeriodicalId":17685,"journal":{"name":"Jurnal Neutrino","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89172525","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}
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