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Articles 22561 - 22590 of 27412
Full-Text Articles in Engineering
Numerical Study Of Thermophoresis On Aerosol Particle Deposition From Hiemenz Flow Through Porous Medium Onto A Stretching Surface, Jian-Sheng Huang, Ruey-Yih Tsai, Kuei-Hsun Huang
Numerical Study Of Thermophoresis On Aerosol Particle Deposition From Hiemenz Flow Through Porous Medium Onto A Stretching Surface, Jian-Sheng Huang, Ruey-Yih Tsai, Kuei-Hsun Huang
Journal of Marine Science and Technology–Taiwan
A theoretical study of aerosol particles responding to thermophoresis, involving the particle deposition rate onto a stretching permeable surface with internal heat source is proposed. The effects on particle transport mechanisms include Brownian diffusion, thermophoresis, porosity, stretching surface, heat source, and suction/injection velocity. The governing equations of continuity, momentum, energy, and particle concentration are transformed using similarity analysis, and the solutions are obtained through appropriate numerical schemes. The predicted results show that if the thermophoretic and stretching parameters increase, the deposition velocity increases for a cold surface. However, the deposition velocity decreases rapidly for a hot surface as the thermophoretic …
Constructing The Comprehensive Subsurface Structure Of Lanyang Plain, Chih-Hao Hsu, Sao-Jeng Chao, Shuh-Gi Chern, Howard Hwang
Constructing The Comprehensive Subsurface Structure Of Lanyang Plain, Chih-Hao Hsu, Sao-Jeng Chao, Shuh-Gi Chern, Howard Hwang
Journal of Marine Science and Technology–Taiwan
This study presents an integral approach to construct a comprehensive subsurface structure of Lanyang Plain. It is well known that geophysicists and engineers use different techniques to investigate the subsurface structure, and each of these techniques has its own advantages. Therefore, in this study, the excellent results from these two fields are selected and combined to provide a comprehensive profile of the subsurface structure of Lanyang Plain. In this study, the subsurface information on nine recording stations and digital boundary lines of Lanyang Plain based on the digital geologic map published by the Central Geological Survey are utilized to create …
Slamming Induced Dynamic Response Of A Floating Structure, Mohammad Ali Lotfollahi-Yaghin1, Mehdi Rastgar, Hamid Ahmadi
Slamming Induced Dynamic Response Of A Floating Structure, Mohammad Ali Lotfollahi-Yaghin1, Mehdi Rastgar, Hamid Ahmadi
Journal of Marine Science and Technology–Taiwan
Study of the slamming phenomenon is one of the most important branches of the floating structure dynamics. Experimental study of the floating structure dynamics can be very expensive because it requires a long wave flume and a moving model. Hence, numerical methods are considered to be very useful and efficient tools for modeling and dynamic analysis of floating structures. In the present paper, slamming induced impulsive loads are investigated firstly. Afterwards, dynamic response of a barge under the slamming excitation is studied, and the natural frequencies and mode shapes are determined, using the FE software package, ANSYS. Critical cross sections …
Effects Of Circulating Fluidized Bed Combustion Fly Ash On The Properties Of Alkali-Activated Slag Cement Mortars, Hui-Mi Hsu
Journal of Marine Science and Technology–Taiwan
This paper illustrates the result of a study on the influence of circulating fluidized bed combustion (CFBC) fly ash, sodium hydroxide (NaOH), sodium silicate (Na2SiO3), sodium phosphate (Na3PO4), and sodium carbonate (Na2CO3) as activators on the workability, bleeding, setting time, compressive strength, shrinking, and absorption of the alkali-activated slag (AAS) cement mortars. The addition of CFBC fly ash, Na3PO4, and Na2CO3 shows decrease of workability. But with Na2SiO3, the workability increase was observed. The setting time of Na3PO4, NaOH, Na2SiO3, and Na2CO3 activated slag cement mortars was found to be much faster than the setting time of slag cement mortars. …
The Economic Impact Of Tennessee State University On The State Of Tennessee 2010-2011, Soumendra Ghosh, Anis Mnif, Sabeen Fahim
The Economic Impact Of Tennessee State University On The State Of Tennessee 2010-2011, Soumendra Ghosh, Anis Mnif, Sabeen Fahim
The Journal of Tennessee State University
No abstract provided.
Some Notable Writers, Editors, And Publishers Affiliated With Tsu Over Its First 100 Years
Some Notable Writers, Editors, And Publishers Affiliated With Tsu Over Its First 100 Years
The Journal of Tennessee State University
No abstract provided.
Living Our Lives As Elders: A Convocation Address, Celeste C. Williams
Living Our Lives As Elders: A Convocation Address, Celeste C. Williams
The Journal of Tennessee State University
No abstract provided.
Dr. Thomas E. Poag: The Life And Works Of A Tsu Legend, Helen R. Houston
Dr. Thomas E. Poag: The Life And Works Of A Tsu Legend, Helen R. Houston
The Journal of Tennessee State University
No abstract provided.
Service-Learning And Civic Engagement: A Return To Our Roots, Deena Sue Fuller
Service-Learning And Civic Engagement: A Return To Our Roots, Deena Sue Fuller
The Journal of Tennessee State University
No abstract provided.
Coach Ed Temple And The Tigerbelles, Yildiz B. Binkley, Reavis Mitchell, Tara Mitchell Mielnik
Coach Ed Temple And The Tigerbelles, Yildiz B. Binkley, Reavis Mitchell, Tara Mitchell Mielnik
The Journal of Tennessee State University
No abstract provided.
Past To Present: School Of Allied Health Professions To College Of Health Sciences And Contributions To Health Improvement In The Local Community And Beyond, Mohamed Kanu, Ronald Barredo, Elizabeth Williams, Revlon Briggs
Past To Present: School Of Allied Health Professions To College Of Health Sciences And Contributions To Health Improvement In The Local Community And Beyond, Mohamed Kanu, Ronald Barredo, Elizabeth Williams, Revlon Briggs
The Journal of Tennessee State University
No abstract provided.
A Royal Band, The Chosen Few: The Birth Of Tennessee State University, Crystal A. Degregory
A Royal Band, The Chosen Few: The Birth Of Tennessee State University, Crystal A. Degregory
The Journal of Tennessee State University
No abstract provided.
Tennessee State University: A Synopsis Of “A Touch Of Greatness,” 1912-2012, Bobby L. Lovett
Tennessee State University: A Synopsis Of “A Touch Of Greatness,” 1912-2012, Bobby L. Lovett
The Journal of Tennessee State University
No abstract provided.
Section Abstracts: Biomedical And General Engineering
Section Abstracts: Biomedical And General Engineering
Virginia Journal of Science
Abstracts of the Biomedical and General Engineering Section for the 90th Annual Meeting of the Virginia Academy of Science, May 23-25, 2012, Norfolk State University, Norfolk, Virginia.
Section Abstracts: Aeronautical And Aerospace Sciences
Section Abstracts: Aeronautical And Aerospace Sciences
Virginia Journal of Science
Abstracts of the Aeronautical and Aerospace Sciences Section for the 90th Annual Meeting of the Virginia Academy of Science, May 23-25, 2015. Norfolk State University, Norfolk, Virginia.
Section Abstracts: Astronomy, Mathematics And Physics With Materials Science
Section Abstracts: Astronomy, Mathematics And Physics With Materials Science
Virginia Journal of Science
Abstracts of the Astronomy, Mathematics, and Physics with Material Science Section for the 90th Annual Meeting of the Virginia Academy of Science, May 23-25, 2012, Norfolk State University, Norfolk, Virginia
Corrosion Rate Of Carbon Steel For Flowline And Pipeline As Transmission Pipe In Natural Gas Production With Co2 Content, Andi Rustandi, Muhammad Adyutatama, Enriko Fadly, Norman Subekti
Corrosion Rate Of Carbon Steel For Flowline And Pipeline As Transmission Pipe In Natural Gas Production With Co2 Content, Andi Rustandi, Muhammad Adyutatama, Enriko Fadly, Norman Subekti
Makara Journal of Technology
The purpose of this research is to investigate the corrosion rate of carbon steel as flowline and pipeline in natural gas production with CO2 content. The influence of variety of conditions that represent the actual conditions in practice such as CO2 partial pressure and solution composition, particularly NaCl percentage were performed. Research conducted by polarization test and simulation methods using PREDICTTM software. The result of this research is used to illustrate the level of corrosion rate of typical carbon steel i.e. API 5L X-52 occurred in natural gas pipelines due to the effect of dissolved CO2. From the experiments obtained …
Concurrent Engineering Of Tolerance Synthesis And Process Selection For Products With Multiple Quality Characteristcs Considering Process Capability, Mohamad Imron Mustajib
Concurrent Engineering Of Tolerance Synthesis And Process Selection For Products With Multiple Quality Characteristcs Considering Process Capability, Mohamad Imron Mustajib
Makara Journal of Technology
The existences of variances that are very difficult to be removed from manufacturing processes provide significance of tolerance to the product quality characteristics target of customer functional requirement. Furthermore, quality loss incurred due to deviation of quality characteristics of the target with a specified tolerance. This article discusses the development of concurrent engineering optimization model of tolerance design and manufacturing process selection on product with multiple quality characteristics by minimizing total costs in the system, namely total manufacturing cost and quality loss cost as functions of tolerance, also rework and scrap costs. The considered multiple quality characteristics have interrelated tolerance …
Modification Of Flow Structure Over A Van Model By Suction Flow Control To Reduce Aerodynamics Drag, Harinaldi Harinaldi, Budiarso Budiarso, Warjito Warjito, Engkos Achmad Kosasih, Rustan Tarakka, Sabar Pangihutan Simanungkalit, I Gusti Made Fredy Lay Teryanto
Modification Of Flow Structure Over A Van Model By Suction Flow Control To Reduce Aerodynamics Drag, Harinaldi Harinaldi, Budiarso Budiarso, Warjito Warjito, Engkos Achmad Kosasih, Rustan Tarakka, Sabar Pangihutan Simanungkalit, I Gusti Made Fredy Lay Teryanto
Makara Journal of Technology
Automobile aerodynamic studies are typically undertaken to improve safety and increase fuel efficiency as well as to find new innovation in automobile technology to deal with the problem of energy crisis and global warming. Some car companies have the objective to develop control solutions that enable to reduce the aerodynamic drag of vehicle and significant modification progress is still possible by reducing the mass, rolling friction or aerodynamic drag. Some flow control method provides the possibility to modify the flow separation to reduce the development of the swirling structures around the vehicle. In this study, a family van is modeled …
Optimizing Fermentation Medium To Produce Cyclosporin A Using Response Surface Methodology, Rofiq Sunaryanto
Optimizing Fermentation Medium To Produce Cyclosporin A Using Response Surface Methodology, Rofiq Sunaryanto
Makara Journal of Technology
Response surface methodology (RSM) is a three factorial model which illustrates the relationship between one or more independent variables. RSM can be used to optimize the fermentation medium for the production of Cyclosporin A from the isolate Tolypocladium inflatum. The optimal point of the response surface area is predicted by using a seconddegree polynomial model and applying the statistic model obtained from the central composite design (CCD). The results of optimizing the fermentation medium for Cyclopsorin using the three independent variables of glucose, casein, and KH2PO4 show that all three of the independent variables affect the production of Cyclosporin A. …
Age, Gender, And Muscle Strength: A Study Based On Indonesian Samples, Henny Henny, Hardianto Iridiastadi, Iftikar Zahedi Sutalaksana
Age, Gender, And Muscle Strength: A Study Based On Indonesian Samples, Henny Henny, Hardianto Iridiastadi, Iftikar Zahedi Sutalaksana
Makara Journal of Technology
Age and gender have been commonly used as a main criterion in accepting a job aplicant, but it is usually not clear how these affect job performance. While a number of recent studies have been done that describe the relationships between age, gender, and participants capacity (e.g., muscle strength), the results have been inconclusive. In Indonesia, in particular, such issues have been rarely investigated, and it is still important to study the issue since the relationships between these factors are population-specific. This study aimed at describing the relationships between age and muscle strength among workers for both genders. Ninety-six male …
Circularly Polarized Microstrip Array Antenna For Ground Segment In Quasi-Zenith Satellite System, Fitri Yuli Zulkifli, Eko Tjipto Rahardjo
Circularly Polarized Microstrip Array Antenna For Ground Segment In Quasi-Zenith Satellite System, Fitri Yuli Zulkifli, Eko Tjipto Rahardjo
Makara Journal of Technology
In satellite communication system, antenna plays an important role. Therefore, the antenna must meet some requirements, such as high gain, circular polarization, and good directivity. In this paper, a four element linear array triangular patch microstrip antenna with cross slot is designed to be used for Quasi-Zenith satellite system. A simulation study as well as experimental study was carried out. The simulation showed that the 3 dB axial ratio bandwidth of 87 MHz (2.569-2.656 GHz) is achieved while the measured results showed 96 MHz (2.556-2.652 GHz). The linear array of 4 element antenna has a gain of 13.73 dB and …
Tolerance Limit For Trucks With Excess Load In Transport Regulation In Indonesia, Sigit Pranowo Hadiwardoyo, Raden Jachrizal Sumabrata, Mohammed Ali Berawi
Tolerance Limit For Trucks With Excess Load In Transport Regulation In Indonesia, Sigit Pranowo Hadiwardoyo, Raden Jachrizal Sumabrata, Mohammed Ali Berawi
Makara Journal of Technology
Reliability of a road is mandatory since damaged will impede the traffic. Destruction is caused by various factors; one of the most important factors is excess load. Overload may give the load of each axle of a vehicle exceeds the determined standard. This condition occurs in trucks exceeding the load limit. In designing the structure of a road based on the method of Directorate General of Highways Ministry of Public Works of the Republic of Indonesia, axle load calculated in equivalent-number, or known as equivalent axle load (EAL), of 8.16 tons of standard axle. Total equivalent-number over the service life …
Earthquake Damage Intensity Relationship For Residential Houses In West Sumatra, Febrin Anas Ismail, Abdul Hakam, Fauzan Fauzan
Earthquake Damage Intensity Relationship For Residential Houses In West Sumatra, Febrin Anas Ismail, Abdul Hakam, Fauzan Fauzan
Makara Journal of Technology
The Sumatra 30 September 2009 earthquake has damaged hundred thousand buildings in West Sumatra Province. The earthquake is located in 100 km offshore of Padang City, the Capital City of the province. Survey has been conducted to assess the damage of the building in few days after the earthquake. In this survey, the damage of buildings are categorised into 3 level that are heavily, moderate and slightly damages. This paper explores the level damage of building and then the intensity of the shaking in the affected area. Then based on the coordinate of every building location, the buildings are scattered …
Evaluation Of Universitas Indonesia’S Recharge Pond Performance And Potential Utilization For Raw Water Source, Nyoman Suwartha, Resky Agaslian Pramadin
Evaluation Of Universitas Indonesia’S Recharge Pond Performance And Potential Utilization For Raw Water Source, Nyoman Suwartha, Resky Agaslian Pramadin
Makara Journal of Technology
Evaluasi Kinerja Waduk Resapan UI dan Potensi Pemanfaatannya sebagai Sumber Air Baku. Waduk resapan Universitas Indonesia (UI) telah dibangun sejak 5 tahun yang lalu. Namun kegiatan monitoring dan evaluasinya sangat minim dilakukan. Tujuan dari studi ini adalah untuk mengetahui laju resapan, dan untuk mengevaluasi kondisi kuantitas dan kualitas air waduk resapan selama musim kemarau dan penghujan. Pengukuran kedalaman muka air, intensitas curah hujan dan penguapan dilakukan untuk menentukan ketersediaan air, laju resapan, dan imbangan air waduk. Sejumlah air permukaan diambil dari waduk resapan dan sungai di tiga titik sampling untuk mengetahui kondisi kualitas air eksisting. Hasil studi menunjukkan tidak ada …
Effect Of Methanol Induction And Incubation Time On Expression Of Human Erythropoietin In Methylotropic Yeast Pichia Pastoris, Adi Santoso, Neng Herawati, Yana Rubiana
Effect Of Methanol Induction And Incubation Time On Expression Of Human Erythropoietin In Methylotropic Yeast Pichia Pastoris, Adi Santoso, Neng Herawati, Yana Rubiana
Makara Journal of Technology
Erythropoietin (EPO) is a glycoprotein hormone consists of 165 amino acids and has molecular mass of 30,400 Daltons. The large quantities of these hormone required to satisfy clinical demand are currently met by recombinant expression in mammalian cell, namely chinese hamster ovary (CHO). Pichia pastoris has become popular yeast based protein production systems to substitute mammalian expression systems. P. pastoris is capable to use methanol as sole carbon and energy source. In this study, recombinant human EPO (rhEPO) protein obtained by expressing the hEPO gene in methylotropic yeast P. pastoris, strain X33. The present work was carried out to study …