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Online since: March 2013
Authors: Long Qing Shi, Hong Sheng Lu
Strain KP1-50T seemed to be a novel species of the genus Herbaspicrillum, its accession number was AB366195 and the name of Herbaspirillum chemorialis sp. nov. was proposed.
Characterization of Sphingomonas spp. found as predominant members in the culturable bacterial community of a green pigment-containing sclerotium grain from Mt.
Characterization of Sphingomonas spp. found as predominant members in the culturable bacterial community of a green pigment-containing sclerotium grain from Mt.
Online since: October 2024
Authors: Oleksandr Kireev, Dmytro Tregubov, Ilgar Dadashov, Evgen Slepuzhnikov, Olena Borsuk
Liquids modeling and their properties is carried out on the molecules coarse-grained model basis within the statistical associative theory by replacing the molecule with a solid balls limited number, by which fill the matrices [6], that allows predicting many substance properties and internal force fields.
The factor of 200 to the atoms number determines the electron density redistribution total path in the crystal (in contrast to the hydrocarbons linear structure).
In addition, in the equivalent length and molar mass, it is necessary to take into account a oxygen atoms certain number that could be cluster part as peroxide groups.
Methane requires 9.52 moles of air for the 1 mole combustion, for longer n-alkanes this number decreases to 7.3 per one molecular link.
Sanket, Development of New Transferable Coarse-Grained Models of Hydrocarbons, J.
The factor of 200 to the atoms number determines the electron density redistribution total path in the crystal (in contrast to the hydrocarbons linear structure).
In addition, in the equivalent length and molar mass, it is necessary to take into account a oxygen atoms certain number that could be cluster part as peroxide groups.
Methane requires 9.52 moles of air for the 1 mole combustion, for longer n-alkanes this number decreases to 7.3 per one molecular link.
Sanket, Development of New Transferable Coarse-Grained Models of Hydrocarbons, J.
Online since: August 2003
Authors: Naoki Ohashi, Isao Sakaguchi, Tadashi Takenaka, Hajime Haneda, Yutaka Adachi, Haruki Ryouken
Reduction in the number of oxygen vacancies seems to be an effective approach to fabricate
high-quality ZnO epitaxial films.
The use of NO2 during deposition is expected to reduce the number of oxygen vacancies in ZnO films.
This is explained by the decrease in the number of non-equilibrium defects.
This indicates that another factor plays an important role in the carrier scattering mechanism, for example, grain boundaries or incorporation of N into the films.
The reduction in the number of oxygen defects in the films seems to be one of the reasons for the low carrier concentration.
The use of NO2 during deposition is expected to reduce the number of oxygen vacancies in ZnO films.
This is explained by the decrease in the number of non-equilibrium defects.
This indicates that another factor plays an important role in the carrier scattering mechanism, for example, grain boundaries or incorporation of N into the films.
The reduction in the number of oxygen defects in the films seems to be one of the reasons for the low carrier concentration.
Online since: October 2010
Authors: Zheng Guan Ni
The experimental results show that: after
quenching hardness value no significant change; But after annealing the hardness value decreased
and after annealing the crystal grain of the underlying tissues uniformization become tiny.
We also know that the past ten years, China's production and research of wear parts is very active, progress is obvious to all, China's annual production and consumption wear parts a huge number, if we can basically make these wear parts have good use, its benefits will be very significant.
We also know that the past ten years, China's production and research of wear parts is very active, progress is obvious to all, China's annual production and consumption wear parts a huge number, if we can basically make these wear parts have good use, its benefits will be very significant.
Online since: June 2014
Authors: Yong Chen Song, Meiheriayi Mutailipu, Ling Yu Chen, Yu Liu
The parameters of the pore networks, such as radius, coordination number and shape factors of pore and throat are computed.
It is necessary to apply a series of filters to smooth the image, to reduce noise and improve the contrast between grain and void [5].
In this part we compare the three samples in terms of connectivity (coordination number), size distributions (contains inscribed radii, volume, lengths of pores and throats), and shape factors.
It is necessary to apply a series of filters to smooth the image, to reduce noise and improve the contrast between grain and void [5].
In this part we compare the three samples in terms of connectivity (coordination number), size distributions (contains inscribed radii, volume, lengths of pores and throats), and shape factors.
Online since: September 2015
Authors: Danièle Wagner, Nicolas Ranc, Zhi Yong Huang
These PSB are due to the irreversible gliding of dislocations in well oriented grains, leading to intrusions/extrusions.
Discussion As reported previously [2], the dissipative heat sources (leading to the temperature increase) is related to the dislocation gliding in the well oriented grains giving the Persistent Slips Bands on the specimen surface.
The number of cycles at failure was in the range 104 to 106 cycles which corresponds to the High Cycle Fatigue domain.
If the number of active slips bands decreases, it means that the dislocation gliding is impeded by the solute atoms.
For the A42 steel, there was no free solute atoms in the lattice and the number of mobile dislocations is practically unchanged.
Discussion As reported previously [2], the dissipative heat sources (leading to the temperature increase) is related to the dislocation gliding in the well oriented grains giving the Persistent Slips Bands on the specimen surface.
The number of cycles at failure was in the range 104 to 106 cycles which corresponds to the High Cycle Fatigue domain.
If the number of active slips bands decreases, it means that the dislocation gliding is impeded by the solute atoms.
For the A42 steel, there was no free solute atoms in the lattice and the number of mobile dislocations is practically unchanged.
Online since: October 2023
Authors: Antonio Guerra-Sancho, José Luis Cantero, Carlos Domínguez-Monferrer, María Henar Miguélez
The carbide substrate, EMT100, is a micro-grain cemented carbide with 0.8 μm medium grain size and a composition of 93 % tungsten carbide, 6 % cobalt, and 1 % other materials.
The total number of observations belongs to more than 25 aircraft, involving many analyzed tools.
Variable Description Aircraft ID Aircraft identification number Hole ID Identification number of the hole Tool ID Tool identification number Tool type Number defining the type of tool Hole accumulated Number of holes drilled by the tool Date Date of completion of the hole Components materials Material of the parts drilled in a drill operation CFRP thickness Thickness of the CFRP parts per hole in mm Titanium thickness Thickness of the titanium parts per hole in mm Hole total thickness Hole depth in mm Cutting speeds Cutting speeds used to drill each of the part materials in m/min.
Fig. 4 shows the life of each tool when the catastrophic failure occurred based on the number of holes drilled.
Fig. 4: Tool life of each tool when catastrophic failure occurred based on the number of holes drilled.
The total number of observations belongs to more than 25 aircraft, involving many analyzed tools.
Variable Description Aircraft ID Aircraft identification number Hole ID Identification number of the hole Tool ID Tool identification number Tool type Number defining the type of tool Hole accumulated Number of holes drilled by the tool Date Date of completion of the hole Components materials Material of the parts drilled in a drill operation CFRP thickness Thickness of the CFRP parts per hole in mm Titanium thickness Thickness of the titanium parts per hole in mm Hole total thickness Hole depth in mm Cutting speeds Cutting speeds used to drill each of the part materials in m/min.
Fig. 4 shows the life of each tool when the catastrophic failure occurred based on the number of holes drilled.
Fig. 4: Tool life of each tool when catastrophic failure occurred based on the number of holes drilled.
Online since: November 2012
Authors: Xin Jie Shao, Li Jun Cao, Guang Tian, Qiao Ma, Jin Hua Liu, Hui Bin Hu
Its major fault mode is grain abrasion caused by dry sliding friction.
Collision force is the most difficult kind to investigate because the force numerical value is directly related with the collision parameters, but the collision parameters can only be confirmed by a number of experiments.
Collision force is the most difficult kind to investigate because the force numerical value is directly related with the collision parameters, but the collision parameters can only be confirmed by a number of experiments.
Online since: August 2011
Authors: Sai Yu Wang, Shao Jiang Lin
The results also indicate that the initial porosity has a great effect on the number of pores, pore size, pore shape and the distribution of pores during post sintering process.
Compared with conventional post-sintering, microwave processing offers unique advantages, which include saved energy, enhanced densification and suppressed grain growth owing to very rapid heating rates and cycles.
At the beginning of densification, the initial large pores quickly break down into a large number of smaller pores.
Compared with conventional post-sintering, microwave processing offers unique advantages, which include saved energy, enhanced densification and suppressed grain growth owing to very rapid heating rates and cycles.
At the beginning of densification, the initial large pores quickly break down into a large number of smaller pores.
Online since: October 2006
Authors: Roland Weiss
It will be demonstrated during
the presentation that the manufacturing depends on one hand side on the material which has to be
manufactured and on the other side on the structural component and the number of parts which are
required.
The manufacturing process of CMCs depends on the shape and size, numbers, requirements (mechanical, thermal, chemical and physical) and cost effectiveness of structural components.
One of the key factors in respect to the processing costs is the impregnation technology, whereas the final properties like ductility, grain size and purity are controlled by the final heat treatment temperature (HTT) and the post treatments.
The manufacturing process of CMCs depends on the shape and size, numbers, requirements (mechanical, thermal, chemical and physical) and cost effectiveness of structural components.
One of the key factors in respect to the processing costs is the impregnation technology, whereas the final properties like ductility, grain size and purity are controlled by the final heat treatment temperature (HTT) and the post treatments.