THE 4TH BIOMEDICAL ENGINEERING’S RECENT PROGRESS IN BIOMATERIALS, DRUGS DEVELOPMENT, HEALTH, AND MEDICAL DEVICES: Proceedings of the International Symposium of Biomedical Engineering (ISBE) 2019最新文献
In this research, a bionic prosthetic hand model is designed and built according to the limitations of the human hand, the model is then controlled using a computer algorithm written in MATLAB™ and embedded with Arduino Uno™ based controller. We conduct simulation model by developing algorithm for commanding the system to follow a few arm movement patterns. Forward kinematics algorithm is used to process the user’s input and define control parameters for the bionic arm. The experimental results indicated that the proposed algorithm has already met the desired specifications even though we still require the hardware with high enough specification for actuation purpose.
{"title":"Study on the design of bionic prosthetic hand model","authors":"Gde Pranabhawa Wicaksana, Basari","doi":"10.1063/1.5139384","DOIUrl":"https://doi.org/10.1063/1.5139384","url":null,"abstract":"In this research, a bionic prosthetic hand model is designed and built according to the limitations of the human hand, the model is then controlled using a computer algorithm written in MATLAB™ and embedded with Arduino Uno™ based controller. We conduct simulation model by developing algorithm for commanding the system to follow a few arm movement patterns. Forward kinematics algorithm is used to process the user’s input and define control parameters for the bionic arm. The experimental results indicated that the proposed algorithm has already met the desired specifications even though we still require the hardware with high enough specification for actuation purpose.","PeriodicalId":22239,"journal":{"name":"THE 4TH BIOMEDICAL ENGINEERING’S RECENT PROGRESS IN BIOMATERIALS, DRUGS DEVELOPMENT, HEALTH, AND MEDICAL DEVICES: Proceedings of the International Symposium of Biomedical Engineering (ISBE) 2019","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85878723","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}
S. Sutardi, Radiaprima Kartika Wijaya, S. Hariyadi
Flow behavior over a bump attached on a flat plate has significant effect on the total drag. The drag comprises of pressure and friction or viscous drags. Attaching a disturbance on the bump surface affects significantly on the contribution of pressure and viscous drag. This study is intended to examine the effect of a small wire (tripping wire) attachment on a semi-circular bump surface on the flow characteristics over the semi-circular bump. Special attention of this study is to examine the drag characteristics, pressure distribution, and boundary layer separation point from the bump surface. The study was conducted using experimental and numerical methods. The experiments were conducted in a low-speed wind tunnel at a freestream velocity of 16.5 m/s, corresponding to the flow Reynolds number (Re) of approximately 2.1 × 105. Flat plates with a semi-circular bump with and without wire were attached in the wind tunnel test section used as model tests. The wire is attached at three different angle (θ) locations of the bump surface, namely θ = 30 deg, 40 deg, and 50 deg. The pressure distribution on the plate surface as well as on the bump surface is measured using static pressure taps connected to U-tube manometer. From the pressure distribution, then the pressure drag is obtained from the integration of pressure distribution on the surface. Fluid velocity is measured using a Pitot static tube. Numerical studies was conducted using a commercial software the Fluent. A 2-D, steady flow turbulent model k-ω shear-stress transport (SST) was used in this study. In the numerical simulation, the grid independency test is performed to ensure better results. The results of the study show that the presence of a small wire attached on the bump surface increases to the total drag of the model for all values of θ. Also, the boundary layer separation point on the bump surface for all values of θ occurs at smaller angle comparing to that of the bump without wire. Results from the experimental study compare very well to the results obtained from the numerical simulations with a maximum difference of approximately 5 percent. In this study, the maximum drag occurs for the bump with the tripping wire attached at θ = 50 deg.Flow behavior over a bump attached on a flat plate has significant effect on the total drag. The drag comprises of pressure and friction or viscous drags. Attaching a disturbance on the bump surface affects significantly on the contribution of pressure and viscous drag. This study is intended to examine the effect of a small wire (tripping wire) attachment on a semi-circular bump surface on the flow characteristics over the semi-circular bump. Special attention of this study is to examine the drag characteristics, pressure distribution, and boundary layer separation point from the bump surface. The study was conducted using experimental and numerical methods. The experiments were conducted in a low-speed wind tunnel at a freestream velocity of 16.5
{"title":"Experimental and numerical study on the boundary layer flow over a flat plate with a semi-circular bump with and without a transversal wire","authors":"S. Sutardi, Radiaprima Kartika Wijaya, S. Hariyadi","doi":"10.1063/1.5138294","DOIUrl":"https://doi.org/10.1063/1.5138294","url":null,"abstract":"Flow behavior over a bump attached on a flat plate has significant effect on the total drag. The drag comprises of pressure and friction or viscous drags. Attaching a disturbance on the bump surface affects significantly on the contribution of pressure and viscous drag. This study is intended to examine the effect of a small wire (tripping wire) attachment on a semi-circular bump surface on the flow characteristics over the semi-circular bump. Special attention of this study is to examine the drag characteristics, pressure distribution, and boundary layer separation point from the bump surface. The study was conducted using experimental and numerical methods. The experiments were conducted in a low-speed wind tunnel at a freestream velocity of 16.5 m/s, corresponding to the flow Reynolds number (Re) of approximately 2.1 × 105. Flat plates with a semi-circular bump with and without wire were attached in the wind tunnel test section used as model tests. The wire is attached at three different angle (θ) locations of the bump surface, namely θ = 30 deg, 40 deg, and 50 deg. The pressure distribution on the plate surface as well as on the bump surface is measured using static pressure taps connected to U-tube manometer. From the pressure distribution, then the pressure drag is obtained from the integration of pressure distribution on the surface. Fluid velocity is measured using a Pitot static tube. Numerical studies was conducted using a commercial software the Fluent. A 2-D, steady flow turbulent model k-ω shear-stress transport (SST) was used in this study. In the numerical simulation, the grid independency test is performed to ensure better results. The results of the study show that the presence of a small wire attached on the bump surface increases to the total drag of the model for all values of θ. Also, the boundary layer separation point on the bump surface for all values of θ occurs at smaller angle comparing to that of the bump without wire. Results from the experimental study compare very well to the results obtained from the numerical simulations with a maximum difference of approximately 5 percent. In this study, the maximum drag occurs for the bump with the tripping wire attached at θ = 50 deg.Flow behavior over a bump attached on a flat plate has significant effect on the total drag. The drag comprises of pressure and friction or viscous drags. Attaching a disturbance on the bump surface affects significantly on the contribution of pressure and viscous drag. This study is intended to examine the effect of a small wire (tripping wire) attachment on a semi-circular bump surface on the flow characteristics over the semi-circular bump. Special attention of this study is to examine the drag characteristics, pressure distribution, and boundary layer separation point from the bump surface. The study was conducted using experimental and numerical methods. The experiments were conducted in a low-speed wind tunnel at a freestream velocity of 16.5","PeriodicalId":22239,"journal":{"name":"THE 4TH BIOMEDICAL ENGINEERING’S RECENT PROGRESS IN BIOMATERIALS, DRUGS DEVELOPMENT, HEALTH, AND MEDICAL DEVICES: Proceedings of the International Symposium of Biomedical Engineering (ISBE) 2019","volume":"55 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85981449","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}
A. N. Sommeng, Mustika Sari, M. J. Ginting, M. Sahlan, H. Hermansyah, A. Wijanarko
Lionfish (Pterois volitans) is an invasive species originating from Indo-Pacific Sea. The rapid growth and the absence of natural predators cause Lionfish to breed rapidly and reduce the native fish populations by up to 80%. Therefore, the study of the Lionfish must be intensified to obtain the usefulness of these animals. Studies that have stated that the extract of poison lionfish spines has the potential to become an anticancer agent for cervical cancer. The aim of the present work is to Investigation the Anticancer activity of Pterois volitans from Indonesia to human cervical carcinoma cell (HeLa cell). Crude venom (CV) that is resulted from the extraction process by sonicating of fresh venomous Pterois volitans as a sample was used. The PLA 2 sample of crude venom was heated on (50, 55, 60, 65, 70) °C for 30 min and purified by (20, 40, 60, 80) % ammonium sulfate. The concentration and purity are analyzed using Lowry method, Marinette’s, sodium dodecyl sulfate-polyacrylamide gel electrophoresis, and ...
{"title":"The influence of heating process on anticancer activity of Pterois volitans (red lionfish) venom extraction against human cervical carcinoma cell","authors":"A. N. Sommeng, Mustika Sari, M. J. Ginting, M. Sahlan, H. Hermansyah, A. Wijanarko","doi":"10.1063/1.5139359","DOIUrl":"https://doi.org/10.1063/1.5139359","url":null,"abstract":"Lionfish (Pterois volitans) is an invasive species originating from Indo-Pacific Sea. The rapid growth and the absence of natural predators cause Lionfish to breed rapidly and reduce the native fish populations by up to 80%. Therefore, the study of the Lionfish must be intensified to obtain the usefulness of these animals. Studies that have stated that the extract of poison lionfish spines has the potential to become an anticancer agent for cervical cancer. The aim of the present work is to Investigation the Anticancer activity of Pterois volitans from Indonesia to human cervical carcinoma cell (HeLa cell). Crude venom (CV) that is resulted from the extraction process by sonicating of fresh venomous Pterois volitans as a sample was used. The PLA 2 sample of crude venom was heated on (50, 55, 60, 65, 70) °C for 30 min and purified by (20, 40, 60, 80) % ammonium sulfate. The concentration and purity are analyzed using Lowry method, Marinette’s, sodium dodecyl sulfate-polyacrylamide gel electrophoresis, and ...","PeriodicalId":22239,"journal":{"name":"THE 4TH BIOMEDICAL ENGINEERING’S RECENT PROGRESS IN BIOMATERIALS, DRUGS DEVELOPMENT, HEALTH, AND MEDICAL DEVICES: Proceedings of the International Symposium of Biomedical Engineering (ISBE) 2019","volume":"39 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81295498","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}
Anggia Nurwulan Kusno Putri, S. Arianto, R. Priambodo, Y. Ariani, D. Sjarif
{"title":"Protein analysis of exon 8 mutation in iduronate 2-sulfatase gene in mucopolysaccharidosis type II patients in Indonesia","authors":"Anggia Nurwulan Kusno Putri, S. Arianto, R. Priambodo, Y. Ariani, D. Sjarif","doi":"10.1063/1.5139366","DOIUrl":"https://doi.org/10.1063/1.5139366","url":null,"abstract":"","PeriodicalId":22239,"journal":{"name":"THE 4TH BIOMEDICAL ENGINEERING’S RECENT PROGRESS IN BIOMATERIALS, DRUGS DEVELOPMENT, HEALTH, AND MEDICAL DEVICES: Proceedings of the International Symposium of Biomedical Engineering (ISBE) 2019","volume":"49 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84308646","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}
P. M. Udiyani, A. Hamzah, H. Adrial, S. Kuntjoro, I. Husnayani, M. Setiawan
Experimental Power Reactor (RDE) is a power reactor with High Temperature Gas cooled Reactor (HTGR). The safety justification of the RDE design is that radiation safety can be guaranteed which guarantees the safety of radiation workers and the community around the RDE site. To ensure the safety of workers and the community and the justification that RDE design meets safety criteria, a study of the zoning of the radiation area in the reactor is needed. The assessment is done based on HTR-10 parameters that types and power are similar to RDE. The research was conducted using computer simulation methods using ORIGEN2.1 and MCNP computer programs. Based on the Regulation of BAPETEN No.4 of 2013, concerning "Protection and Safety of Radiation in the Use of Nuclear Power", article 26 of the Work Area is divided into 2 namely Control areas and Supervision area. The zoning of the work area for radiation workers is determined based on the dosage amount calculated from the calculation of radiation sources, doses and radiation shields designed. The division of work area is determined based on the layout of the reactor building which is designed based on the RDE concept design. Based on the RDE concept design, the reactor building is divided into 4 levels, namely: 1). -12.70 m level; 2). Level±0.00 m; 3). Level+12.70 m; and 4). Level +25.40 m. The results of the radiation dose calculation in RDE and the layout of the RDE design are used to determine the zoning area for radiation workers at each level area. Zoning is estimated in accordance with the rules of the BAPETEN regulatory body. Actions that must be taken for each zoning are also carried out.Experimental Power Reactor (RDE) is a power reactor with High Temperature Gas cooled Reactor (HTGR). The safety justification of the RDE design is that radiation safety can be guaranteed which guarantees the safety of radiation workers and the community around the RDE site. To ensure the safety of workers and the community and the justification that RDE design meets safety criteria, a study of the zoning of the radiation area in the reactor is needed. The assessment is done based on HTR-10 parameters that types and power are similar to RDE. The research was conducted using computer simulation methods using ORIGEN2.1 and MCNP computer programs. Based on the Regulation of BAPETEN No.4 of 2013, concerning "Protection and Safety of Radiation in the Use of Nuclear Power", article 26 of the Work Area is divided into 2 namely Control areas and Supervision area. The zoning of the work area for radiation workers is determined based on the dosage amount calculated from the calculation of radiation sources, doses an...
{"title":"The assessment of radiation zone determination in RDE for radiation workers","authors":"P. M. Udiyani, A. Hamzah, H. Adrial, S. Kuntjoro, I. Husnayani, M. Setiawan","doi":"10.1063/1.5135541","DOIUrl":"https://doi.org/10.1063/1.5135541","url":null,"abstract":"Experimental Power Reactor (RDE) is a power reactor with High Temperature Gas cooled Reactor (HTGR). The safety justification of the RDE design is that radiation safety can be guaranteed which guarantees the safety of radiation workers and the community around the RDE site. To ensure the safety of workers and the community and the justification that RDE design meets safety criteria, a study of the zoning of the radiation area in the reactor is needed. The assessment is done based on HTR-10 parameters that types and power are similar to RDE. The research was conducted using computer simulation methods using ORIGEN2.1 and MCNP computer programs. Based on the Regulation of BAPETEN No.4 of 2013, concerning \"Protection and Safety of Radiation in the Use of Nuclear Power\", article 26 of the Work Area is divided into 2 namely Control areas and Supervision area. The zoning of the work area for radiation workers is determined based on the dosage amount calculated from the calculation of radiation sources, doses and radiation shields designed. The division of work area is determined based on the layout of the reactor building which is designed based on the RDE concept design. Based on the RDE concept design, the reactor building is divided into 4 levels, namely: 1). -12.70 m level; 2). Level±0.00 m; 3). Level+12.70 m; and 4). Level +25.40 m. The results of the radiation dose calculation in RDE and the layout of the RDE design are used to determine the zoning area for radiation workers at each level area. Zoning is estimated in accordance with the rules of the BAPETEN regulatory body. Actions that must be taken for each zoning are also carried out.Experimental Power Reactor (RDE) is a power reactor with High Temperature Gas cooled Reactor (HTGR). The safety justification of the RDE design is that radiation safety can be guaranteed which guarantees the safety of radiation workers and the community around the RDE site. To ensure the safety of workers and the community and the justification that RDE design meets safety criteria, a study of the zoning of the radiation area in the reactor is needed. The assessment is done based on HTR-10 parameters that types and power are similar to RDE. The research was conducted using computer simulation methods using ORIGEN2.1 and MCNP computer programs. Based on the Regulation of BAPETEN No.4 of 2013, concerning \"Protection and Safety of Radiation in the Use of Nuclear Power\", article 26 of the Work Area is divided into 2 namely Control areas and Supervision area. The zoning of the work area for radiation workers is determined based on the dosage amount calculated from the calculation of radiation sources, doses an...","PeriodicalId":22239,"journal":{"name":"THE 4TH BIOMEDICAL ENGINEERING’S RECENT PROGRESS IN BIOMATERIALS, DRUGS DEVELOPMENT, HEALTH, AND MEDICAL DEVICES: Proceedings of the International Symposium of Biomedical Engineering (ISBE) 2019","volume":"9 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85448105","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}
Porous media becomes a potential alternative for cooling technology since it has large contact surface area that strongly enhance heat transfer and exchanging energy within pore channel. A computational fluid dynamics of conjugate heat transfer and periodic boundary condition were applied in FLUENT 6.3.26. Simulations of fixed bed spheres as porous media inside pipe flow were carried out in the range of Reynolds number 5000 to 80000. Simulation methodology was validated by analytical prediction. In the range of Reynolds number 100 – 6000 is very good agreement, however in the range of Reynolds number above 6000 - 10000 just fairly agree. This is caused by the fact that in the range of Reynolds number above 6000 analytical model does not use turbulence model. Fluctuation effects are just considered as dispersion. The results shows that the fixed bed spheres for porous structure gives the highest value of the cooling effectiveness than the other porous structures except for ReD ≤ 10000, the cooling effectiveness of the discrete porous structure is higher compared to the analyzed fixed bed porous structures. At ReD = 15,000 the fixed bed spheres gives 28%, 65% and 160% higher effectiveness compared to the discrete porous structure, 60° broken ribs and 90° continuous ribs, respectively.Porous media becomes a potential alternative for cooling technology since it has large contact surface area that strongly enhance heat transfer and exchanging energy within pore channel. A computational fluid dynamics of conjugate heat transfer and periodic boundary condition were applied in FLUENT 6.3.26. Simulations of fixed bed spheres as porous media inside pipe flow were carried out in the range of Reynolds number 5000 to 80000. Simulation methodology was validated by analytical prediction. In the range of Reynolds number 100 – 6000 is very good agreement, however in the range of Reynolds number above 6000 - 10000 just fairly agree. This is caused by the fact that in the range of Reynolds number above 6000 analytical model does not use turbulence model. Fluctuation effects are just considered as dispersion. The results shows that the fixed bed spheres for porous structure gives the highest value of the cooling effectiveness than the other porous structures except for ReD ≤ 10000, the cooling effectiv...
{"title":"Numerical analysis of conjugate porous media for increasing heat transfer rate in fixed bed spheres","authors":"F. R. Purnadiana, Prabowo, H. Sasongko","doi":"10.1063/1.5138291","DOIUrl":"https://doi.org/10.1063/1.5138291","url":null,"abstract":"Porous media becomes a potential alternative for cooling technology since it has large contact surface area that strongly enhance heat transfer and exchanging energy within pore channel. A computational fluid dynamics of conjugate heat transfer and periodic boundary condition were applied in FLUENT 6.3.26. Simulations of fixed bed spheres as porous media inside pipe flow were carried out in the range of Reynolds number 5000 to 80000. Simulation methodology was validated by analytical prediction. In the range of Reynolds number 100 – 6000 is very good agreement, however in the range of Reynolds number above 6000 - 10000 just fairly agree. This is caused by the fact that in the range of Reynolds number above 6000 analytical model does not use turbulence model. Fluctuation effects are just considered as dispersion. The results shows that the fixed bed spheres for porous structure gives the highest value of the cooling effectiveness than the other porous structures except for ReD ≤ 10000, the cooling effectiveness of the discrete porous structure is higher compared to the analyzed fixed bed porous structures. At ReD = 15,000 the fixed bed spheres gives 28%, 65% and 160% higher effectiveness compared to the discrete porous structure, 60° broken ribs and 90° continuous ribs, respectively.Porous media becomes a potential alternative for cooling technology since it has large contact surface area that strongly enhance heat transfer and exchanging energy within pore channel. A computational fluid dynamics of conjugate heat transfer and periodic boundary condition were applied in FLUENT 6.3.26. Simulations of fixed bed spheres as porous media inside pipe flow were carried out in the range of Reynolds number 5000 to 80000. Simulation methodology was validated by analytical prediction. In the range of Reynolds number 100 – 6000 is very good agreement, however in the range of Reynolds number above 6000 - 10000 just fairly agree. This is caused by the fact that in the range of Reynolds number above 6000 analytical model does not use turbulence model. Fluctuation effects are just considered as dispersion. The results shows that the fixed bed spheres for porous structure gives the highest value of the cooling effectiveness than the other porous structures except for ReD ≤ 10000, the cooling effectiv...","PeriodicalId":22239,"journal":{"name":"THE 4TH BIOMEDICAL ENGINEERING’S RECENT PROGRESS IN BIOMATERIALS, DRUGS DEVELOPMENT, HEALTH, AND MEDICAL DEVICES: Proceedings of the International Symposium of Biomedical Engineering (ISBE) 2019","volume":"30 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87688578","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}
Nurhuda, Rosalina Thuffi, Dwi Ari Pudjianto, R. Muharam, N. Mudjihartini, Andhea Debby Pradhita, K. Kusmardi
{"title":"High progesterone levels on the day of hCG administration in controlled ovarian hyperstimulation procedures reduce the expression of progesterone receptors in the endometrium Macaca nemestrina","authors":"Nurhuda, Rosalina Thuffi, Dwi Ari Pudjianto, R. Muharam, N. Mudjihartini, Andhea Debby Pradhita, K. Kusmardi","doi":"10.1063/1.5139369","DOIUrl":"https://doi.org/10.1063/1.5139369","url":null,"abstract":"","PeriodicalId":22239,"journal":{"name":"THE 4TH BIOMEDICAL ENGINEERING’S RECENT PROGRESS IN BIOMATERIALS, DRUGS DEVELOPMENT, HEALTH, AND MEDICAL DEVICES: Proceedings of the International Symposium of Biomedical Engineering (ISBE) 2019","volume":"96 3 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87689732","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}
Nowadays, utilization of hydropower is still focussed on the development of large dams which have an effect on the natural environment and are often opposed by the people in the region. Producing electricity from small water resources, especially using the gravitational vortex method has currently attracted the interest of researchers. In this paper, a numerical study of the effect of vortex pool variation on the performance and flow field of gravitational water vortex power plant (GWVPP) are investigated. Numerical study based on the volume of fluid (VOF) method is developed in ANSYS FLUENT code program for analyzing the parametric studies of GWVPP. Cylindrical vortex pool coupled with gravitation type water turbine based on Nishi and Inagaki (2017) research, are modified become conical vortex pool type by varying the ratio of inlet diameter and outlet diameter (Din/Dout) by 3.26; 4.9; and 6.12. Turbulent model is approached using RNG k-epsilon and boundary conditions are set 2.838 kg/s for inlet mass flow rate, 0 Pa for open and outlet boundary. As a beginning result, the computational values of this study and experimental data of the torque and turbine output from Nishi and Inagaki (2017) agreed with one another. Later, for conical basin with variation of Din/Dout, it can be shown that the maximum velocity profile achieved in nearly to the discharge hole, in order from 6.12; 4.9; followed by 3.26 of the Din/Dout ratio respectively. It is supported by the increase in the Din/Dout ratio or decrease output hole, the air area increase and creat greater vortex circulation.
{"title":"Numerical study on the performance and flow field of varied conical basin for efficient gravitational water vortex power plant","authors":"D. S. Pamuji, Nizam Effendi, D. Sugati","doi":"10.1063/1.5138256","DOIUrl":"https://doi.org/10.1063/1.5138256","url":null,"abstract":"Nowadays, utilization of hydropower is still focussed on the development of large dams which have an effect on the natural environment and are often opposed by the people in the region. Producing electricity from small water resources, especially using the gravitational vortex method has currently attracted the interest of researchers. In this paper, a numerical study of the effect of vortex pool variation on the performance and flow field of gravitational water vortex power plant (GWVPP) are investigated. Numerical study based on the volume of fluid (VOF) method is developed in ANSYS FLUENT code program for analyzing the parametric studies of GWVPP. Cylindrical vortex pool coupled with gravitation type water turbine based on Nishi and Inagaki (2017) research, are modified become conical vortex pool type by varying the ratio of inlet diameter and outlet diameter (Din/Dout) by 3.26; 4.9; and 6.12. Turbulent model is approached using RNG k-epsilon and boundary conditions are set 2.838 kg/s for inlet mass flow rate, 0 Pa for open and outlet boundary. As a beginning result, the computational values of this study and experimental data of the torque and turbine output from Nishi and Inagaki (2017) agreed with one another. Later, for conical basin with variation of Din/Dout, it can be shown that the maximum velocity profile achieved in nearly to the discharge hole, in order from 6.12; 4.9; followed by 3.26 of the Din/Dout ratio respectively. It is supported by the increase in the Din/Dout ratio or decrease output hole, the air area increase and creat greater vortex circulation.","PeriodicalId":22239,"journal":{"name":"THE 4TH BIOMEDICAL ENGINEERING’S RECENT PROGRESS IN BIOMATERIALS, DRUGS DEVELOPMENT, HEALTH, AND MEDICAL DEVICES: Proceedings of the International Symposium of Biomedical Engineering (ISBE) 2019","volume":"72 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75882576","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}
Diabetic retinopathy (DR) is a diabetes complication causing blindness in which symptoms are not perceived in earlier stage or non-proliferative diabetic retinopathy (NPDR). It is difficult for manual diagnosis methods to keep pace with the growing number of DR. In this study, an algorithm to detect NPDR was developed and implemented in the Android application. In contrary to feature engineering, this study explored a different classification approach by having used a deep neural networks and transfer learning methods on fundus images to train the classifier models. Model development utilized Messidor (4 class) dataset and Messidor-2 (2 class) dataset, image pre-processing, Inception V3 network and MobileNetV1 network, the configuration of test set-train set split, optimizer, and learning rate. Test accuracy of 86% was acquired with InceptionV3 and Messidor-2 which then implemented in Android application. Its yielded accuracy, sensitivity, and specificity are 88%, 80%, and 76% respectively.Diabetic retinopathy (DR) is a diabetes complication causing blindness in which symptoms are not perceived in earlier stage or non-proliferative diabetic retinopathy (NPDR). It is difficult for manual diagnosis methods to keep pace with the growing number of DR. In this study, an algorithm to detect NPDR was developed and implemented in the Android application. In contrary to feature engineering, this study explored a different classification approach by having used a deep neural networks and transfer learning methods on fundus images to train the classifier models. Model development utilized Messidor (4 class) dataset and Messidor-2 (2 class) dataset, image pre-processing, Inception V3 network and MobileNetV1 network, the configuration of test set-train set split, optimizer, and learning rate. Test accuracy of 86% was acquired with InceptionV3 and Messidor-2 which then implemented in Android application. Its yielded accuracy, sensitivity, and specificity are 88%, 80%, and 76% respectively.
{"title":"Development of diabetic retinopathy early detection and its implementation in Android application","authors":"Isca Amanda, H. Zakaria","doi":"10.1063/1.5139396","DOIUrl":"https://doi.org/10.1063/1.5139396","url":null,"abstract":"Diabetic retinopathy (DR) is a diabetes complication causing blindness in which symptoms are not perceived in earlier stage or non-proliferative diabetic retinopathy (NPDR). It is difficult for manual diagnosis methods to keep pace with the growing number of DR. In this study, an algorithm to detect NPDR was developed and implemented in the Android application. In contrary to feature engineering, this study explored a different classification approach by having used a deep neural networks and transfer learning methods on fundus images to train the classifier models. Model development utilized Messidor (4 class) dataset and Messidor-2 (2 class) dataset, image pre-processing, Inception V3 network and MobileNetV1 network, the configuration of test set-train set split, optimizer, and learning rate. Test accuracy of 86% was acquired with InceptionV3 and Messidor-2 which then implemented in Android application. Its yielded accuracy, sensitivity, and specificity are 88%, 80%, and 76% respectively.Diabetic retinopathy (DR) is a diabetes complication causing blindness in which symptoms are not perceived in earlier stage or non-proliferative diabetic retinopathy (NPDR). It is difficult for manual diagnosis methods to keep pace with the growing number of DR. In this study, an algorithm to detect NPDR was developed and implemented in the Android application. In contrary to feature engineering, this study explored a different classification approach by having used a deep neural networks and transfer learning methods on fundus images to train the classifier models. Model development utilized Messidor (4 class) dataset and Messidor-2 (2 class) dataset, image pre-processing, Inception V3 network and MobileNetV1 network, the configuration of test set-train set split, optimizer, and learning rate. Test accuracy of 86% was acquired with InceptionV3 and Messidor-2 which then implemented in Android application. Its yielded accuracy, sensitivity, and specificity are 88%, 80%, and 76% respectively.","PeriodicalId":22239,"journal":{"name":"THE 4TH BIOMEDICAL ENGINEERING’S RECENT PROGRESS IN BIOMATERIALS, DRUGS DEVELOPMENT, HEALTH, AND MEDICAL DEVICES: Proceedings of the International Symposium of Biomedical Engineering (ISBE) 2019","volume":"19 4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79727123","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}
Girder of a ship unloader crane (SUC) with a rated capacity of 1250 t/h has to be extended in order to follow jetty upgrading. The girder extension is limited by the railway span of gantry crane and the capacity of belt conveyor, which are maintained. This simulation aims to determine the effect of girder extension on the vulnerability of SUC to earthquake shocks in Indonesian region. A new method is proposed to evaluate earthquake resilience of crane structure that is not anchored to the ground, based on an equivalent static load of earthquake shock. The equivalent static simulation is carried out using ANSYS Mechanical APDL R18 on the 3d-truss model of SUC, which is generated based on the general arrangement drawing. To investigate the influence of earthquake shocks on the SUC structure, three variations of girder extension is applied, i.e. 3m, 6m, and 9m. The applied load consists of the SUC operating load and the earthquake load that works on the SUC structure’s supports. The earthquake resilience of SUC after girder extension is evaluated by comparing the reaction forces that occur in the supports. The simulations indicated that the girder extension can reduce the earthquake resilience of SUC, depending on the direction of the earthquake propagation.Girder of a ship unloader crane (SUC) with a rated capacity of 1250 t/h has to be extended in order to follow jetty upgrading. The girder extension is limited by the railway span of gantry crane and the capacity of belt conveyor, which are maintained. This simulation aims to determine the effect of girder extension on the vulnerability of SUC to earthquake shocks in Indonesian region. A new method is proposed to evaluate earthquake resilience of crane structure that is not anchored to the ground, based on an equivalent static load of earthquake shock. The equivalent static simulation is carried out using ANSYS Mechanical APDL R18 on the 3d-truss model of SUC, which is generated based on the general arrangement drawing. To investigate the influence of earthquake shocks on the SUC structure, three variations of girder extension is applied, i.e. 3m, 6m, and 9m. The applied load consists of the SUC operating load and the earthquake load that works on the SUC structure’s supports. The earthquake resilience of ...
{"title":"Girder extension effect on earthquake resilience of ship unloader crane: A numerical study","authors":"Suwarno, A. Syaifudin","doi":"10.1063/1.5138359","DOIUrl":"https://doi.org/10.1063/1.5138359","url":null,"abstract":"Girder of a ship unloader crane (SUC) with a rated capacity of 1250 t/h has to be extended in order to follow jetty upgrading. The girder extension is limited by the railway span of gantry crane and the capacity of belt conveyor, which are maintained. This simulation aims to determine the effect of girder extension on the vulnerability of SUC to earthquake shocks in Indonesian region. A new method is proposed to evaluate earthquake resilience of crane structure that is not anchored to the ground, based on an equivalent static load of earthquake shock. The equivalent static simulation is carried out using ANSYS Mechanical APDL R18 on the 3d-truss model of SUC, which is generated based on the general arrangement drawing. To investigate the influence of earthquake shocks on the SUC structure, three variations of girder extension is applied, i.e. 3m, 6m, and 9m. The applied load consists of the SUC operating load and the earthquake load that works on the SUC structure’s supports. The earthquake resilience of SUC after girder extension is evaluated by comparing the reaction forces that occur in the supports. The simulations indicated that the girder extension can reduce the earthquake resilience of SUC, depending on the direction of the earthquake propagation.Girder of a ship unloader crane (SUC) with a rated capacity of 1250 t/h has to be extended in order to follow jetty upgrading. The girder extension is limited by the railway span of gantry crane and the capacity of belt conveyor, which are maintained. This simulation aims to determine the effect of girder extension on the vulnerability of SUC to earthquake shocks in Indonesian region. A new method is proposed to evaluate earthquake resilience of crane structure that is not anchored to the ground, based on an equivalent static load of earthquake shock. The equivalent static simulation is carried out using ANSYS Mechanical APDL R18 on the 3d-truss model of SUC, which is generated based on the general arrangement drawing. To investigate the influence of earthquake shocks on the SUC structure, three variations of girder extension is applied, i.e. 3m, 6m, and 9m. The applied load consists of the SUC operating load and the earthquake load that works on the SUC structure’s supports. The earthquake resilience of ...","PeriodicalId":22239,"journal":{"name":"THE 4TH BIOMEDICAL ENGINEERING’S RECENT PROGRESS IN BIOMATERIALS, DRUGS DEVELOPMENT, HEALTH, AND MEDICAL DEVICES: Proceedings of the International Symposium of Biomedical Engineering (ISBE) 2019","volume":"35 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91239221","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 4TH BIOMEDICAL ENGINEERING’S RECENT PROGRESS IN BIOMATERIALS, DRUGS DEVELOPMENT, HEALTH, AND MEDICAL DEVICES: Proceedings of the International Symposium of Biomedical Engineering (ISBE) 2019
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