Phosphorus Removal And Recovery From Waste Water By Bio-Processing Followed By Microwave Radiation,
2015
Wuhan Phosphorus Resources Science and Technology Development Co. Ltd.
Phosphorus Removal And Recovery From Waste Water By Bio-Processing Followed By Microwave Radiation, Renhua Zhong, Wending Xiao
Beneficiation of Phosphates VII
No abstract provided.
General Method To Predict Voltage-Dependent Ionic Conduction In A Solid Electrolyte Coating On Electrodes,
2015
University of Kentucky
General Method To Predict Voltage-Dependent Ionic Conduction In A Solid Electrolyte Coating On Electrodes, Jie Pan, Yang-Tse Cheng, Yue Qi
Chemical and Materials Engineering Faculty Publications
Understanding the ionic conduction in solid electrolytes in contact with electrodes is vitally important to many applications, such as lithium ion batteries. The problem is complex because both the internal properties of the materials (e.g., electronic structure) and the characteristics of the externally contacting phases (e.g., voltage of the electrode) affect defect formation and transport. In this paper, we developed a method based on density functional theory to study the physics of defects in a solid electrolyte in equilibrium with an external environment. This method was then applied to predict the ionic conduction in lithium fluoride (LiF), in contact with …
A Microscopic Study On The Corrosion Fatigue Of Ultra-Fine Grained And Conventional Al–Mg Alloy,
2015
Bucknell University
A Microscopic Study On The Corrosion Fatigue Of Ultra-Fine Grained And Conventional Al–Mg Alloy, Mala M. Sharma, Josh D. Tomedi, Jeffery M. Parks
Faculty Journal Articles
The corrosion behavior of a nanocrystalline (NC)/ultrafine grained (UFG) Al–Mg based alloy was investigated and compared to its conventional counterpart 5083(H111). The corrosion fatigue (CF) was studied with respect to pit initiation, pit location and crack propagation as a function of environment. Scanning electron microscopy (SEM) with EDS was used to analyze the fracture surface of the failed specimen with respect to pitting characteristics, crack propagation and corrosion product. Load vs. cycles to failure was measured and S/N curves were generated for the UFG Al–Mg based alloy and the conventional counterpart 5083 in air and seawater.
Generation Of Multi-Charged Aluminum Ions From Femtosecond Laser Induced Plasma,
2015
Old Dominion University
Generation Of Multi-Charged Aluminum Ions From Femtosecond Laser Induced Plasma, Frederick Guy Wilson
Electrical & Computer Engineering Theses & Dissertations
Laser-induced plasma multi-charged ion (MCI) sources have gained in popularity over the last thirty years with the advent of reliable, high peak power, short temporal pulse laser systems. Utilization of laser-induced plasma MCI sources allows for production of a wide array of ion species from a variety of source target materials. In this thesis an investigation of the generation of MCis from an aluminum (Al) target source through laser-induced plasma from a femtosecond (fs) pulsed laser system is outlined and the results presented and analyzed. In order to characterize the production of the Al MCis resulting from the fs laser …
Group Decisions In Value Management,
2015
Department of Civil Engineering, Institut Teknologi Sepuluh Nopember, Surabaya 60111, Indonesia
Group Decisions In Value Management, Christiono Utomo, Farida Murti, Arazi Idrus
Makara Journal of Technology
This research deals with a technique to expedite group decision making during the selection of technical solutions for value management process. Selection of a solution from a set of alternatives is facilitated by evaluating using multicriteria decision making techniques. During the process, every possible solution is rated on criteria of function and cost. Function deals more with quality than with quantity, and cost can be calculated based on the theoretical time value of money. Decision-making techniques based on satisfying games are applied to determine the relative function and cost of solutions and hence their relative value. The functions were determined …
Nanomechanical Characterization Of Thermo-Mechanical Properties Of Irradiated Zirconium With Consideration Of Temperature And Microstructure,
2015
Purdue University
Nanomechanical Characterization Of Thermo-Mechanical Properties Of Irradiated Zirconium With Consideration Of Temperature And Microstructure, Jonathan Thomas Marsh
Open Access Theses
Zirconium (Zr) and zirconium-alloys have been utilized in the nuclear industry for decades, most commonly in nuclear fuel cladding. The characteristics which make Zr ideal for these applications include: low density, high hardness, high ductility, and high corrosion resistance. Efforts have been made to further enhance these properties through the use of Zr-alloys, such as Zircaloy-2 and Zircaloy-4, which are made up 95-99% Zr by weight, with the remaining weight percentage being made of other metals (tin, niobium, nickel, iron, chromium). The performance of these materials directly influences the efficiency of the nuclear reactor and are thus of primary concern. …
Fiber Optic Ring Resonator Sensor Detection Technique Based On Spectral Intensity Integration,
2015
Department of Electrical Engineering, Faculty of Engineering, Universitas Indonesia, Depok 16424, Indonesia
Fiber Optic Ring Resonator Sensor Detection Technique Based On Spectral Intensity Integration, Purnomo Sidi Priambodo, Sasono Rahardjo, Gunawan Witjaksono, Djoko Hartanto
Makara Journal of Technology
Resonant field phenomenon in optical ring resonator has been a major theme for various studies and can be used for various sensor applications. The spectral response shape changes are subjects to be discussed and analyzed for detection in optical sensor system. The spectral response changes are caused by various factors ranging from refractive index of the surrounding medium, medium loss due to absorption and scattering, and coupling variation between waveguides. These optical phenomena are mostly used for bio-sensor applications, since it is free from electromagnetic interference (EMI) and non-physically destructive. In this paper, we discuss our current research in developing …
Seebeck Coefficient Of Soi Layer Induced By Phonon Transport,
2015
Research Institute of Electronics, Shizuoka University, 3-5-1 Johoku, Naka-ku, Hamamatsu 432-8011, Japan
Seebeck Coefficient Of Soi Layer Induced By Phonon Transport, Faiz Salleh, Takuro Oda, Yuhei Suzuki, Yoshinari Kamakura, Hiroya Ikeda
Makara Journal of Technology
The Seebeck coefficient of a patterned Si wire on P-doped SOI (Si-on-insulator) layer with a carrier concentration of 1018 cm-3 was measured near room temperature. The Seebeck coefficient is found to be smaller than that in the SOI layer and to be closer to the calculated Seebeck coefficient including the electronic contribution. The decrease in the Seebeck coefficient of Si wire is likely to occur due to the elimination of the contribution of phonon drag part. From the theoretical calculation of scattering rates by considering the scattering processes in phonon system, it is considered that an increase in phonon-boundary scattering …
Surface Oxidation Energetics And Kinetics On Mos2 Monolayer,
2015
The University of Texas at Dallas
Surface Oxidation Energetics And Kinetics On Mos2 Monolayer, Santosh Kc, Roberto Longo, Robert Wallace, Kyeongjae Cho
Faculty Publications
In this work, surface oxidation of monolayer MoS2 (one of the representative semiconductors in transition-metal dichalcogenides) has been investigated using density functional theory method. Oxygen interaction with MoS2 shows that, thermodynamically, the surface tends to be oxidized. However, the dissociative absorption of molecular oxygen on the MoS2 surface is kinetically limited due to the large energy barrier at low temperature. This finding elucidates the air stability of MoS2 surface in the atmosphere. Furthermore, the presence of defects significantly alters the surface stability and adsorption mechanisms. The electronic properties of the oxidized surface have been examined as a function of oxygen …
Estimation And Thermodynamic Modeling Of Solid Iron Species In The Berkeley Pit Water,
2015
Montana Tech of the University of Montana
Estimation And Thermodynamic Modeling Of Solid Iron Species In The Berkeley Pit Water, Rajesh Srivastava
Graduate Theses & Non-Theses
Since the cessation of open-pit mining activities from the Berkeley Pit located in Butte, MT in 1982, the pit had gradually filled with metal-laden acidic mine water. The purpose of this investigation was to estimate and apply thermodynamic theory to a group of iron-sulfate solids that might equilibrate with the Berkeley Pit water. Thermodynamic data was incomplete for acid mine affected water, and the effects of Cu cementation on the formation of iron oxide and sulfate solids had not been analyzed. Ferric iron compounds such as Ferrihydrite, Goethite, Schwertmannite, Potassium Jarosite and Potassium Hydronium Jarosite were modelled in Stabcal using …
Focus On Properties And Applications Of Perovskites,
2015
Missouri University of Science and Technology
Focus On Properties And Applications Of Perovskites, Fatih Dogan, Hong Lin, Maryline Guilloux-Viry, Octavio J. Pena
Materials Science and Engineering Faculty Research & Creative Works
No abstract provided.
Impact Of Symmetry On The Ferroelectric Properties Of Catio₃ Thin Films,
2015
Missouri University of Science and Technology
Impact Of Symmetry On The Ferroelectric Properties Of Catio₃ Thin Films, Michael D. Biegalski, Liang Qiao, Yijia Gu, Apurva Mehta, Qian He, For Full List Of Authors, See Publisher's Website.
Materials Science and Engineering Faculty Research & Creative Works
Epitaxial strain is a powerful tool to induce functional properties such as ferroelectricity in thin films of materials that do not possess ferroelectricity in bulk form. In this work, a ferroelectric state was stabilized in thin films of the incipient ferroelectric, CaTiO3, through the careful control of the biaxial strain state and TiO6 octahedral rotations. Detailed structural characterization was carried out by synchrotron x-ray diffraction and scanning transmission electron microscopy. CaTiO3 films grown on La0.18Sr0.82Al0.59Ta0.41O3 (LSAT) and NdGaO3 (NGO) substrates experienced a 1.1% biaxial strain state …
Hazard-Driven Drivers’ Behaviours Towards Vehicle-To-Median Safe Distances,
2015
Civil Engineering Department, Faculty of Engineering, Universitas Indonesia, Depok 16424, Indonesia
Hazard-Driven Drivers’ Behaviours Towards Vehicle-To-Median Safe Distances, Martha Leni Siregar
Makara Journal of Technology
A median is required for a two-way road to separate traffic from opposing lanes and to prevent head-on collisions. However, studies indicate that medians are also perceived as hazards which need to be avoided during driving. This hazard perception is manifested in drivers’ changing behavior towards various types of medians along the driving lanes inform of their tendency to allow various safe distances to the medians. The Indonesian Highway Capacity Manual (IHCM) does not differentiate between types of medians and the influence on the drivers’ choice of safe margin to the medians. Therefore, this study looks into how the existence …
Construction Of A Novel Method Of Measuring Thermal Conductivity For Nanostructures,
2015
Research Institute of Electronics, Shizuoka University, Johoku 3-5-1, Naka-ku, Hamamatsu 432-8011, Japan
Construction Of A Novel Method Of Measuring Thermal Conductivity For Nanostructures, Hiroya Ikeda, Shoma Yoshida, Yuhei Suzuki, Veerappan Manimuthu, Faiz Salleh, Fujio Kuwahara, Masaru Shimomura, Kenji Murakami
Makara Journal of Technology
With the aim of characterizing the thermal conduction in a nanometer-scaled materials, we have constructed a novel method on the basis of an ac calorimetric method. In this method, periodic sample heating is performed by light irradiation and the corresponding periodic temperature is detected by infrared irradiative thermometer. This makes us measure the thermal diffusivity out of contact with the objective sample. In the present study, we confirm to measure the thermal diffusivity of bulk Si and Cu by this non-contact method with halogen-lamp irradiation. In determining the thermal diffusivity from the relationship between distance deviation and delay time, the …
The Effects Of The Types Of Milk (Cow, Goat, Soya) And Enzymes (Rennet, Papain, Bromelain) Toward Cheddar Cheese Production,
2015
Department of Chemical Engineering, Faculty of Industrial Technology, Universitas Katolik Parahyangan, Bandung 40141, Indonesia
The Effects Of The Types Of Milk (Cow, Goat, Soya) And Enzymes (Rennet, Papain, Bromelain) Toward Cheddar Cheese Production, Ariestya Arlene, Anastasia Prima Kristijarti, Ivana Ardelia
Makara Journal of Technology
The objectives of this research are to study the effects of different types of milk and enzymes toward the yield and quality (moisture, ash, protein, fat content, and texture) of cheddar cheese and the interaction between those two variables during the process. The types of milk are cow, goat, and soya milk, while the types of enzymes are rennet, papain, and bromelain enzymes. Regarding the procedure, the milk is first pasteurized before CaCl2 and Lactobacillus lactis that acts as the acidifier starter as much as 0.2% (w/v) and 0.5% of the milk volume are added respectively. The amount of enzyme …
Energy And Exergy Analysis Of Kalina Cycle For The Utilization Of Waste Heat In Brine Water For Indonesian Geothermal Field,
2015
Department of Mechanical Engineering, Faculty of Engineering, Universitas Indonesia, Depok 16424, Indonesia
Energy And Exergy Analysis Of Kalina Cycle For The Utilization Of Waste Heat In Brine Water For Indonesian Geothermal Field, Nasruddin Nasruddin, Agus Noor Sidiq, Abdulmajeed Mohamad, Rama Usvika
Makara Journal of Technology
The utilization of waste heat in a power plant system—which would otherwise be released back to the environment—in order to produce additional power increases the efficiency of the system itself. The purpose of this study is to present an energy and exergy analysis of Kalina Cycle System (KCS) 11, which is proposed to be utilized to generate additional electric power from the waste heat contained in geothermal brine water available in the Lahendong Geothermal power plant site in North Sulawesi, Indonesia. A modeling application on energy and exergy system is used to study the design of thermal system which uses …
The Use Of Lanthanum (La+3) And Cerium (Ce+3) Ions As Phosphate Activators In Low Grade Phosphate Flotation,
2015
Mining Engineering Department, Al-Hussein Bin Talal University-Jordan, Jordan
The Use Of Lanthanum (La+3) And Cerium (Ce+3) Ions As Phosphate Activators In Low Grade Phosphate Flotation, Salah Al-Thyabat, Patrick Zhang
Beneficiation of Phosphates VII
No abstract provided.
Application Of Custofloat® Carbonate Collectors In Beneficiating Phosphate Ores In China,
2015
ArrMaz Product
Application Of Custofloat® Carbonate Collectors In Beneficiating Phosphate Ores In China, Guoxin Wang, Zhengguo Jiang, Lingyi Du
Beneficiation of Phosphates VII
Custofloat® 813 (CF-813) is a collector specially designed and manufactured by ArrMazz for reverse flotation of phosphate ores with carbonate impurities. It was used to process phosphate ores from several mines in China with great success. The paper will present the process flowsheets and flotation results of phosphate ores in three commercial beneficiation plants.
Processing Florida Dolomitic Phosphate Pebble With Custofloat® Carbonate Collectors,
2015
ArrMaz Products
Processing Florida Dolomitic Phosphate Pebble With Custofloat® Carbonate Collectors, Guoxin Wang, Zhengxing (James) Gu
Beneficiation of Phosphates VII
It was estimated that phosphate reserves associated with high carbonate minerals are greater than those with siliceous gangues worldwide. It has been long recognized that separation of carbonate from phosphate is difficult because those minerals contain same or similar alkaline earth cations which lead them to exhibit similar surface behavior in flotation. With the depletion of easy-to-process phosphate reserves, phosphate deposits with high carbonate impurities must be mined and processed to meet the demand. Crushing, grinding and flotation are considered the most efficient process to recover phosphate from phosphate ores associated with carbonate gangue minerals. Therefore, flotation reagents, especially collectors, …
Recovery Of Ree From An Apatite Concentrate In The Nitrophosphate Process Of Fertilizer Production,
2015
KTH
Recovery Of Ree From An Apatite Concentrate In The Nitrophosphate Process Of Fertilizer Production, Mahmood Alemrajabi, Kerstin Forsberg, Ake Rasmuson
Beneficiation of Phosphates VII
No abstract provided.
