Studies of Lithium Hydride Systems. I. Solid
... The differential d .c. amplifier activated n. proportionating controller which in turn operatcd a magnetic amplifier. The power to the furnace surrounding the sample was supplied through a sa tllrable core rcactor controllcd by the magnctic amplifier. An adjustablc span, adjustable suppression recor ...
... The differential d .c. amplifier activated n. proportionating controller which in turn operatcd a magnetic amplifier. The power to the furnace surrounding the sample was supplied through a sa tllrable core rcactor controllcd by the magnctic amplifier. An adjustablc span, adjustable suppression recor ...
Non-ideal Plastic Behavior
... in a quality assurance laboratory. This procedure is often fairly timeconsuming and means that some of the product is usually wasted before a particular problem becomes apparent. For this reason, there is an ...
... in a quality assurance laboratory. This procedure is often fairly timeconsuming and means that some of the product is usually wasted before a particular problem becomes apparent. For this reason, there is an ...
Characterization of the citrate precursor, used for
... used for correcting the pH rate up to 6. The obtained solution is heated at 80°C. Solely, in this study, before the solution becomes viscous, the evaporation was stopped and crystalline compound was formed in open air for a month. The obtained compound was stored in a desiccator over P2O5. The exami ...
... used for correcting the pH rate up to 6. The obtained solution is heated at 80°C. Solely, in this study, before the solution becomes viscous, the evaporation was stopped and crystalline compound was formed in open air for a month. The obtained compound was stored in a desiccator over P2O5. The exami ...
Surface Characterization of Gram-Negative Bacteria
... maximum intensity (12). If not at the same position, there will be an interference pattern created by the difference in optical path length between the two mirrors (11). During each scan the sample will absorb some radiation, lowering the intensity of the incident radiation (12). The second mirror i ...
... maximum intensity (12). If not at the same position, there will be an interference pattern created by the difference in optical path length between the two mirrors (11). During each scan the sample will absorb some radiation, lowering the intensity of the incident radiation (12). The second mirror i ...
Sulphuric acid leaching of zinc and copper from Nigerian
... ores involve sulphide oxidation to form watersoluble sulphates or oxides. The sulphur oxidation processes include roasting, pressure oxidation, chemical oxidation and bioleaching. The processes that are traditionally used are complex and expensive (Gomez et al., 1997, Han and Meng, 2003). Hence atte ...
... ores involve sulphide oxidation to form watersoluble sulphates or oxides. The sulphur oxidation processes include roasting, pressure oxidation, chemical oxidation and bioleaching. The processes that are traditionally used are complex and expensive (Gomez et al., 1997, Han and Meng, 2003). Hence atte ...
Noncovalently Connected Polymeric Micelles in Aqueous Medium
... DLS was used to measure hydrodynamic radius distributions of the micelles produced in different conditions. The results are summarized in Table 2. There are four test groups. The test groups of 1, 2, and 3 are for the solutions containing PVPo and its counterparts of SMAA1, SMAA2, and SMAA3, respect ...
... DLS was used to measure hydrodynamic radius distributions of the micelles produced in different conditions. The results are summarized in Table 2. There are four test groups. The test groups of 1, 2, and 3 are for the solutions containing PVPo and its counterparts of SMAA1, SMAA2, and SMAA3, respect ...
full text pdf
... used for impact milling. Milling of the material was due to impact of the steel tines spaced on the shield and on the spinning rotor. The milling was conducted at rotor speed of 11 400 rpm and with an efficiency of 60 kg/h. In the electromagnetic mill, the grinding was due to collisions of grains wi ...
... used for impact milling. Milling of the material was due to impact of the steel tines spaced on the shield and on the spinning rotor. The milling was conducted at rotor speed of 11 400 rpm and with an efficiency of 60 kg/h. In the electromagnetic mill, the grinding was due to collisions of grains wi ...
Latitudinal decrease in acorn size in bur oak Quercus macrocarpa
... acorns moving into the next most northern 2.58 block as follows: from the original distribution, the largest x acorns were dropped from the distribution, where x was a ‘‘selectivity coefficient’’ that varied between 10 (low selectivity) and 90 (high selectivity). The mean and SD of the remaining (10 ...
... acorns moving into the next most northern 2.58 block as follows: from the original distribution, the largest x acorns were dropped from the distribution, where x was a ‘‘selectivity coefficient’’ that varied between 10 (low selectivity) and 90 (high selectivity). The mean and SD of the remaining (10 ...
Structural and Functional Characterization of Luminescent Silver
... transitions in these metal NCs.17 The electronic transition in these Ag NCs leading to luminescence is attributed to the recombination of the excited electrons from higher excited states in the sp band with the holes in the lower-lying d band (interband transition). It is well-known that the sodium ...
... transitions in these metal NCs.17 The electronic transition in these Ag NCs leading to luminescence is attributed to the recombination of the excited electrons from higher excited states in the sp band with the holes in the lower-lying d band (interband transition). It is well-known that the sodium ...
Transport and deposition of quantum dots and
... Table 2.1Zeta Potential of the quartz sand in the presence of electrolyte (KCl and CaCl2) used in the transport experiments. .............................................................................................................. 30 Table 2.2Physicochemical properties of the size-fractioned po ...
... Table 2.1Zeta Potential of the quartz sand in the presence of electrolyte (KCl and CaCl2) used in the transport experiments. .............................................................................................................. 30 Table 2.2Physicochemical properties of the size-fractioned po ...
Document
... Both compounds have sharp melting points. Compound X melts at 150 °C, as shown on the left vertical axis, and Y melts at 148 °C, as shown on the right vertical axis. As compound X is added to pure Y, the melting point of the mixture decreases along curve C-B until a minimum temperature of 130 °C is ...
... Both compounds have sharp melting points. Compound X melts at 150 °C, as shown on the left vertical axis, and Y melts at 148 °C, as shown on the right vertical axis. As compound X is added to pure Y, the melting point of the mixture decreases along curve C-B until a minimum temperature of 130 °C is ...
Cash Conversion Cycle Across Industries
... with 92 observations (which cover four years). Not only FMCG is analyzed but also Airline Industry. The airline industry nowadays is highly competitive being characterized by low profit margins and a heavy cost-structure in terms of fixed costs. The expenses of an aircraft flight do not vary signifi ...
... with 92 observations (which cover four years). Not only FMCG is analyzed but also Airline Industry. The airline industry nowadays is highly competitive being characterized by low profit margins and a heavy cost-structure in terms of fixed costs. The expenses of an aircraft flight do not vary signifi ...
ELECTRICAL AND DIELECTRIC PROPERTIES OF RUBBER
... the resistance, R, 1 S ¼ 1 reciprocal ohm (or mho). The material property that is independent of the dimensions of the conductor is the conductivity, r, given by the product of G and the cross-sectional area, A, divided by the length, d, of the conductor; r has units of siemens per meter. In additio ...
... the resistance, R, 1 S ¼ 1 reciprocal ohm (or mho). The material property that is independent of the dimensions of the conductor is the conductivity, r, given by the product of G and the cross-sectional area, A, divided by the length, d, of the conductor; r has units of siemens per meter. In additio ...
Tamene Hailu - Addis Ababa University Institutional Repository
... Theses systems vary in size and diversity, and they include large installations such as the Spallation neutron sources. Those particle accelerators have three basic parts in general. It consists of a source to generate positively charged ions, one or more structures to accelerate the ions in kev up ...
... Theses systems vary in size and diversity, and they include large installations such as the Spallation neutron sources. Those particle accelerators have three basic parts in general. It consists of a source to generate positively charged ions, one or more structures to accelerate the ions in kev up ...
Chemistry written examination 1 2008–2011
... To obtain full marks for your responses you should • give simpliÞed answers with an appropriate number of signiÞcant Þgures to all numerical questions; unsimpliÞed answers will not be given full marks. • show all working in your answers to numerical questions. No credit will be given for an incorrec ...
... To obtain full marks for your responses you should • give simpliÞed answers with an appropriate number of signiÞcant Þgures to all numerical questions; unsimpliÞed answers will not be given full marks. • show all working in your answers to numerical questions. No credit will be given for an incorrec ...
Preparation of High Concentration Dispersions
... exfoliated in liquids (solvents or aqueous surfactant solutions) without any of the problems ...
... exfoliated in liquids (solvents or aqueous surfactant solutions) without any of the problems ...
A simple model for semipermeable membrane: Donnan equilibrium
... adsorption is a subject of current interest: In molecular engineering, the macroions adsorption mechanisms are basic in self-assembling polyelectrolyte layers on a charged substrate [22] and novel colloids stabilization mechanisms [23]. By means of integral equations, a previous study of Donnan equi ...
... adsorption is a subject of current interest: In molecular engineering, the macroions adsorption mechanisms are basic in self-assembling polyelectrolyte layers on a charged substrate [22] and novel colloids stabilization mechanisms [23]. By means of integral equations, a previous study of Donnan equi ...
Laboratory Practices from Physical Chemistry
... Dumas method Dumas method represents pycnometric method for gas-phase samples density determination. Long narrow necked Dumas flask (with volume ca 100 ml) plays a role of pycnometer. We set the temperature of the thermostatic bath by 10 °C higher than sample boiling point. Using analytical scales, ...
... Dumas method Dumas method represents pycnometric method for gas-phase samples density determination. Long narrow necked Dumas flask (with volume ca 100 ml) plays a role of pycnometer. We set the temperature of the thermostatic bath by 10 °C higher than sample boiling point. Using analytical scales, ...
Carbon Dating Method
... number of radioactive events. They cannot identify the source of the activity. They only can operate successfully if it is assured that the detected event actually has originated in the 14C decay. That requires background suppression techniques. The main background is originated from the cosmic rays ...
... number of radioactive events. They cannot identify the source of the activity. They only can operate successfully if it is assured that the detected event actually has originated in the 14C decay. That requires background suppression techniques. The main background is originated from the cosmic rays ...
Cold spray coating: review of material systems and future perspectives
... softening at elevated temperatures. No gas pre-warming or only low process temperatures are required to produce dense coatings using these materials. It is worth mentioning that the deposition of Al is somewhat more difficult than other soft materials such as Zn and Cu. This is attributed to its hig ...
... softening at elevated temperatures. No gas pre-warming or only low process temperatures are required to produce dense coatings using these materials. It is worth mentioning that the deposition of Al is somewhat more difficult than other soft materials such as Zn and Cu. This is attributed to its hig ...
(Ir)reversibility and entropy
... to a rigorous symmetry between past and future. It is possible, as discussed in the article by T. Damour in this same volume, that irreversibility is inscribed in other physical laws, for example on the side of general relativity or quantum mechanics. Since Boltzmann, statistical physics has advance ...
... to a rigorous symmetry between past and future. It is possible, as discussed in the article by T. Damour in this same volume, that irreversibility is inscribed in other physical laws, for example on the side of general relativity or quantum mechanics. Since Boltzmann, statistical physics has advance ...
Pore Structure Characterization of Ten Typical Rocks in China
... pressure of breaking point, the size of the pore is determined by the injected mercury volume, as a result, size and number of throat can be clearly reflected in the mercury intrusion pressure curve. MIP method has many advantages and becomes the most commonly used method for pore structure characte ...
... pressure of breaking point, the size of the pore is determined by the injected mercury volume, as a result, size and number of throat can be clearly reflected in the mercury intrusion pressure curve. MIP method has many advantages and becomes the most commonly used method for pore structure characte ...
Behind the weak excitonic emission of ZnO quantum dots: ZnOÕZn
... down to 1.8 eV was detected for Zn共OH) 2 powder. For the Zn共OH) 2 共150 °C兲 sample, the weak UV band and the strong visible band at 2.16 eV 共curve e兲 should come from ZnO with much larger particle sizes. Only the UV emission at 3.21 eV is observed for the bulk OH-group free ZnO 共curve f兲. It thus see ...
... down to 1.8 eV was detected for Zn共OH) 2 powder. For the Zn共OH) 2 共150 °C兲 sample, the weak UV band and the strong visible band at 2.16 eV 共curve e兲 should come from ZnO with much larger particle sizes. Only the UV emission at 3.21 eV is observed for the bulk OH-group free ZnO 共curve f兲. It thus see ...
Particle-size distribution
The particle-size distribution (PSD) of a powder, or granular material, or particles dispersed in fluid, is a list of values or a mathematical function that defines the relative amount, typically by mass, of particles present according to size. PSD is also known as grain size distribution.