C143
... and 25 µm heights respectively. The heat transfer in pool boiling was augmented to the same degree in both cases over a plain silicon surface. However, the taller sample B resulted in a 28 percent improvement in CHF, as compared to 25 percent for Type A MWNCTs, over a plain silicon surface. The tall ...
... and 25 µm heights respectively. The heat transfer in pool boiling was augmented to the same degree in both cases over a plain silicon surface. However, the taller sample B resulted in a 28 percent improvement in CHF, as compared to 25 percent for Type A MWNCTs, over a plain silicon surface. The tall ...
SINTERED MATERIALS WITH HIGH POROSITY
... Abstract. The paper represents a review of the research of the author related to sintered porous materials. It presents in a synthetic way the classification, the main properties and the functional characteristics of the porous sintered sheets: behaviour to mechanical stress, permeability and techno ...
... Abstract. The paper represents a review of the research of the author related to sintered porous materials. It presents in a synthetic way the classification, the main properties and the functional characteristics of the porous sintered sheets: behaviour to mechanical stress, permeability and techno ...
國 立 交 通 大 學
... Figure 2.1 Schematic of events that occur around the substrate surface. Summation of these events leads to deposition on the wafer. ...
... Figure 2.1 Schematic of events that occur around the substrate surface. Summation of these events leads to deposition on the wafer. ...
Document
... The latest low-temperature of Colorado in Boulder when a team of scientists led by Carl Wieman reported that they had cooled a sample containing 2 × 107 cesium atoms to 1.1 × 10–6 K, about one-millionth of a degree above absolute zero. This record-low temperature was achieved by a technique know as ...
... The latest low-temperature of Colorado in Boulder when a team of scientists led by Carl Wieman reported that they had cooled a sample containing 2 × 107 cesium atoms to 1.1 × 10–6 K, about one-millionth of a degree above absolute zero. This record-low temperature was achieved by a technique know as ...
Enhanced thermal conductivity of ethylene glycol with single
... Figure 7 shows the theoretical bounds of the H-S model along with the present experimental and literature results. In two recent studies, Fan and Wang [51, 52] argued that when the ratio of the thermal conductivity of the nanomaterial to the base fluid conductivity is greater than unity, the separat ...
... Figure 7 shows the theoretical bounds of the H-S model along with the present experimental and literature results. In two recent studies, Fan and Wang [51, 52] argued that when the ratio of the thermal conductivity of the nanomaterial to the base fluid conductivity is greater than unity, the separat ...
Effect of external energy on atomic, crystalline and powder
... improved ductility/toughness, reduced elastic modulus, increased specific heat, higher electrical resistivity, higher thermal expansion coefficient, lower thermal conductivity, and superior magnetic properties much improved over those exhibited by conventional grain sized (> 10 μm) polycrystalline m ...
... improved ductility/toughness, reduced elastic modulus, increased specific heat, higher electrical resistivity, higher thermal expansion coefficient, lower thermal conductivity, and superior magnetic properties much improved over those exhibited by conventional grain sized (> 10 μm) polycrystalline m ...
Plasma Treatment for Environment Protection
... industrialization have not come without cost. Industry has a strong environmental impact with effects on our health and on the surrounding nature. As a result the negative aspects of industrialization have started to counteract the positive aspects of our living standards. The negative environmental ...
... industrialization have not come without cost. Industry has a strong environmental impact with effects on our health and on the surrounding nature. As a result the negative aspects of industrialization have started to counteract the positive aspects of our living standards. The negative environmental ...
Downloaded on 2017-02
... ALD shows great promise in achieving monolayer-by-monolayer materials growth 4 and is already used commercially to fabricate layers of high-permittivity dielectric just a few nanometres thick in nanoelectronic transistors and memory devices. 5 As a type of chemical vapour deposition (CVD), material ...
... ALD shows great promise in achieving monolayer-by-monolayer materials growth 4 and is already used commercially to fabricate layers of high-permittivity dielectric just a few nanometres thick in nanoelectronic transistors and memory devices. 5 As a type of chemical vapour deposition (CVD), material ...
A universal approach to predicting temperature response of metallic
... quenching proceeds at a slow rate, massive precipitation will occur along the crystal boundaries rather than within the crystals themselves. The resulting alloy in this case is one which is not age-hardenable during subsequent reheating. Thus, the cooling rate must exceed some minimum value, which d ...
... quenching proceeds at a slow rate, massive precipitation will occur along the crystal boundaries rather than within the crystals themselves. The resulting alloy in this case is one which is not age-hardenable during subsequent reheating. Thus, the cooling rate must exceed some minimum value, which d ...
Surface-Mediated Visible-Light Photo-oxidation
... Usually only ultraviolet light must be used for photochemical reactions on TiO2 because of its bulk band gap (3.0-3.2 eV). However, we used scanning tunneling microscopy (STM) to observe visible light photo-oxidation reactions of formic acid on the new ordered lattice-work structure of a TiO2(001) s ...
... Usually only ultraviolet light must be used for photochemical reactions on TiO2 because of its bulk band gap (3.0-3.2 eV). However, we used scanning tunneling microscopy (STM) to observe visible light photo-oxidation reactions of formic acid on the new ordered lattice-work structure of a TiO2(001) s ...
Hydrogen-Peroxide-Enhanced Nonthermal Plasma Effluent for
... in biological applications [3]. In direct methods, the target to be decontaminated or treated is physically present in the discharge region. Such direct treatment is most commonly accomplished using a dielectric-barrier discharge (DBD), where the target is a floating electrode. In indirect methods, ...
... in biological applications [3]. In direct methods, the target to be decontaminated or treated is physically present in the discharge region. Such direct treatment is most commonly accomplished using a dielectric-barrier discharge (DBD), where the target is a floating electrode. In indirect methods, ...
An Experimental Investigation Into the Relationship Between
... Aluminum has been used extensively in the aerospace industry for its high strength-to-weight ratio and corrosion resistance. Recently, these same attributes, coupled with the promise of full recyclability, have made aluminum a possible substitute fact, production of the so-called "aluminum intensive ...
... Aluminum has been used extensively in the aerospace industry for its high strength-to-weight ratio and corrosion resistance. Recently, these same attributes, coupled with the promise of full recyclability, have made aluminum a possible substitute fact, production of the so-called "aluminum intensive ...
Lab: size of the atom
... 5. When the signs of reaction indicate that all of the zinc has reacted, add about 200 mL of tap water to the reaction beaker. This will dilute the hydrochloric acid solution and stop the reaction. 6. Pour off the diluted acid into a waste beaker as directed by your instructor. 7. Remove the metal w ...
... 5. When the signs of reaction indicate that all of the zinc has reacted, add about 200 mL of tap water to the reaction beaker. This will dilute the hydrochloric acid solution and stop the reaction. 6. Pour off the diluted acid into a waste beaker as directed by your instructor. 7. Remove the metal w ...
Combustion and Flue Gas Analysis
... reaction between a substance (the fuel) and a gas (the oxidizer), usually O2, to release thermal energy (heat), electromagnetic energy (light), mechanical energy (noise) and electrical energy( free ions and electrons ). In a complete combustion reaction, a compound reacts with an oxidizing element, ...
... reaction between a substance (the fuel) and a gas (the oxidizer), usually O2, to release thermal energy (heat), electromagnetic energy (light), mechanical energy (noise) and electrical energy( free ions and electrons ). In a complete combustion reaction, a compound reacts with an oxidizing element, ...
Gases Honors
... What did you learn today? • Heat is a transfer of energy (usually thermal energy) from a body of higher temperature to a body of lower temperature. Thermal energy is the energy associated with the random motion of atoms and molecules. • Temperature is a measurement of the average kinetic energy of ...
... What did you learn today? • Heat is a transfer of energy (usually thermal energy) from a body of higher temperature to a body of lower temperature. Thermal energy is the energy associated with the random motion of atoms and molecules. • Temperature is a measurement of the average kinetic energy of ...
Process for Thermal Fixation of Atmospheric Nitrogen
... The early data available from Nernst^ was fairly reliable up to the region of 3000°K. The Norwegians (see Appendix) who actually built a plant did not determine the equilibrium yield of nitric oxide nor for that matter were able to accurately measure the temperature of the gas leaving the arc. Howev ...
... The early data available from Nernst^ was fairly reliable up to the region of 3000°K. The Norwegians (see Appendix) who actually built a plant did not determine the equilibrium yield of nitric oxide nor for that matter were able to accurately measure the temperature of the gas leaving the arc. Howev ...
Surface chemistry and Catalysis
... Here we are considering physical adsorption resulting in the multi layer adsorption. In BET it is assumed that the solid surface possesses uniform, localized sites and adsorption at one site does not affect adsorption at neighboring sites . It is further assumed that the molecule can be adsorbed in ...
... Here we are considering physical adsorption resulting in the multi layer adsorption. In BET it is assumed that the solid surface possesses uniform, localized sites and adsorption at one site does not affect adsorption at neighboring sites . It is further assumed that the molecule can be adsorbed in ...
The Coating Inspectors Handbook - M
... specifications and complies with any contract documents for the project. In a strict sense, judgment of the work should be based only on the documentation and no variance should be made without discussions with the owner or engineer that wrote the project documents despite what the inspector may fee ...
... specifications and complies with any contract documents for the project. In a strict sense, judgment of the work should be based only on the documentation and no variance should be made without discussions with the owner or engineer that wrote the project documents despite what the inspector may fee ...
Removal of Oxygen from Biogas via Catalytic Oxidation of Methane
... While methane is the major gas component, many natural gases contain hydrocarbons, like ethane, propane or butane. In case of biogas, LPG or propane are used for adjustment of the calorific value before injection into the natural gas grid [10]. These hydrocarbons can also be used for catalytic oxyge ...
... While methane is the major gas component, many natural gases contain hydrocarbons, like ethane, propane or butane. In case of biogas, LPG or propane are used for adjustment of the calorific value before injection into the natural gas grid [10]. These hydrocarbons can also be used for catalytic oxyge ...
Numerical Simulation on the Combustion - Purdue e-Pubs
... described in improved manners compared to the previously models. To date, six sinter pot tests based on FGRS technology have been used for model validation, and good agreements between simulated and measured results are obtained. Parametric studies focused on the quantitatively evaluation of the eff ...
... described in improved manners compared to the previously models. To date, six sinter pot tests based on FGRS technology have been used for model validation, and good agreements between simulated and measured results are obtained. Parametric studies focused on the quantitatively evaluation of the eff ...
Heat transfer mechanisms of laminar flames of hydrogen+ oxygen
... ovens [4], hydrogen–oxygen mixtures are commonly used [5]. The reduction in energy consumption is considerable when recuperative ovens are replaced by oxy-fuel ovens [5]. Since the late 1960s and early 1970s the lighting industry has been using premixed oxy-fuel combustion. High heat transfer rates ...
... ovens [4], hydrogen–oxygen mixtures are commonly used [5]. The reduction in energy consumption is considerable when recuperative ovens are replaced by oxy-fuel ovens [5]. Since the late 1960s and early 1970s the lighting industry has been using premixed oxy-fuel combustion. High heat transfer rates ...
enjoy learning - System Dynamics Society
... The volume of the produced gas should be as large as possible. How can the unit mass of the explosive produce as large volume of gas as possible? First, change the reactants into gases as much as possible; second, the amount of the gas(es) production material should be as large as possible, that is, ...
... The volume of the produced gas should be as large as possible. How can the unit mass of the explosive produce as large volume of gas as possible? First, change the reactants into gases as much as possible; second, the amount of the gas(es) production material should be as large as possible, that is, ...
Instrukcja przygotowania artykułu
... resistance properties was carried out through the hardness test conducted with the use of the Brinell test method and alloy electrical conductivity was tested with the use of the method based on the eddy current phenomenon. The surface of the samples was polished before the measurements were perform ...
... resistance properties was carried out through the hardness test conducted with the use of the Brinell test method and alloy electrical conductivity was tested with the use of the method based on the eddy current phenomenon. The surface of the samples was polished before the measurements were perform ...
Physical Vapor Deposition
... High Throughput Evaporation Techniques • Box coaters are used for evaporating large substrate materials, often up to several meters in size. • Large amounts of source material are required, but cannot be all heated at once because of realistic power limitations. • Two popular techniques: – Powder t ...
... High Throughput Evaporation Techniques • Box coaters are used for evaporating large substrate materials, often up to several meters in size. • Large amounts of source material are required, but cannot be all heated at once because of realistic power limitations. • Two popular techniques: – Powder t ...
Chemistry (B) Final Exam Study Guide 3
... c. liquid water at 373 K b. liquid water at 90 C d. ice at 0 C ____ 103. What is the key difference between a liquid and a gas? a. intermolecular attractions c. average kinetic energy b. the ability to flow d. the motion of their particles ____ 104. Which states of matter can flow? a. gases only c. ...
... c. liquid water at 373 K b. liquid water at 90 C d. ice at 0 C ____ 103. What is the key difference between a liquid and a gas? a. intermolecular attractions c. average kinetic energy b. the ability to flow d. the motion of their particles ____ 104. Which states of matter can flow? a. gases only c. ...
Thermal spraying
Thermal spraying techniques are coating processes in which melted (or heated) materials are sprayed onto a surface. The ""feedstock"" (coating precursor) is heated by electrical (plasma or arc) or chemical means (combustion flame).Thermal spraying can provide thick coatings (approx. thickness range is 20 micrometers to several mm, depending on the process and feedstock), over a large area at high deposition rate as compared to other coating processes such as electroplating, physical and chemical vapor deposition. Coating materials available for thermal spraying include metals, alloys, ceramics, plastics and composites. They are fed in powder or wire form, heated to a molten or semimolten state and accelerated towards substrates in the form of micrometer-size particles. Combustion or electrical arc discharge is usually used as the source of energy for thermal spraying. Resulting coatings are made by the accumulation of numerous sprayed particles. The surface may not heat up significantly, allowing the coating of flammable substances.Coating quality is usually assessed by measuring its porosity, oxide content, macro and micro-hardness, bond strength and surface roughness. Generally, the coating quality increases with increasing particle velocities.Several variations of thermal spraying are distinguished:Plasma sprayingDetonation sprayingWire arc sprayingFlame sprayingHigh velocity oxy-fuel coating spraying (HVOF)Warm sprayingCold sprayingIn classical (developed between 1910 and 1920) but still widely used processes such as flame spraying and wire arc spraying, the particle velocities are generally low (< 150 m/s), and raw materials must be molten to be deposited. Plasma spraying, developed in the 1970s, usesa high-temperature plasma jet generated by arc dischargewith typical temperatures >15000 K, which makes itpossible to spray refractory materials such as oxides, molybdenum, etc.