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Online since: December 2024
Authors: Sukanya Thepwatee, Anchalee Pinket, Sutthipong Rangauthok
Furthermore, retinol was incorporated into the optimized nanoemulsion, and the physical properties were compared to those of the base formulation.
These assessments typically involve exposing the nanoemulsion to specific conditions, such as temperature fluctuations or mechanical stress, for a predetermined duration, often spanning weeks to months.
The physical properties of the retinol-loaded ONE were compared to those of the respective ONE sample.
Stirring duration is a critical factor affecting thorough mixing and complete gel formation, with significant implications for particle size and PDI, particularly in D-phase emulsification, where additional particle size reduction equipment is not employed.
These assessments typically involve exposing the nanoemulsion to specific conditions, such as temperature fluctuations or mechanical stress, for a predetermined duration, often spanning weeks to months.
The physical properties of the retinol-loaded ONE were compared to those of the respective ONE sample.
Stirring duration is a critical factor affecting thorough mixing and complete gel formation, with significant implications for particle size and PDI, particularly in D-phase emulsification, where additional particle size reduction equipment is not employed.
Online since: September 2024
Authors: Bryan Gonzales, Aldrin D. Calderon, Reylina Garcia Tayactac, Jaime Honra, Ricky D. Umali
In a 2018 study by Feng [6] published in the Journal of Energy Resources Technology, researchers used CFD modeling to examine the gas-solid flow behavior and properties of a CFB.
The multiphase setup in ANSYS considers solid/fluid and gas phases, employing coal properties with a density of 900 kg/m3 and a diameter of 5 mm.
This is a crucial factor since the cyclones' more significant amounts of particles would cause erosion.
Recommendations The project's recommendations emphasize continuous exploration and optimization of circulating fluidized bed (CFB) boiler design and operational factors.
The study assumes specific material properties for the components of the CFB boiler.
The multiphase setup in ANSYS considers solid/fluid and gas phases, employing coal properties with a density of 900 kg/m3 and a diameter of 5 mm.
This is a crucial factor since the cyclones' more significant amounts of particles would cause erosion.
Recommendations The project's recommendations emphasize continuous exploration and optimization of circulating fluidized bed (CFB) boiler design and operational factors.
The study assumes specific material properties for the components of the CFB boiler.
Online since: November 2003
Authors: Sang Woo Kim, Jong Ho Lee, Hai Won Lee, Huesup Song, Joo Sun Kim
Ni/YSZ cermet anode is required to satisfy various properties as a key component of
anode-supported type SOFC, since the cell performance is dependent upon anode properties.
Furthermore, anode substrate in anode-supported type SOFC should also play as a mechanical support for the thin electrolyte and cathode films and as a gas diffusion path for the supply of the fuel to reaction sites [1-3].
The electrical and electrochemical properties of anode substrate are governed not only by the electrical conductivity of the metal-ceramic composite itself but also by the appropriate connection of the gas diffusion path, in order to reduce the ohmic and diffusion polarization losses of the cell performance, respectively.
Commonly used Ni/YSZ cermet is known to have many desirable properties for anode substrate because it has both electronic conduction path through metallic Ni and ionic conduction path through YSZ.
Microstructure evolution by applied compaction pressure control affected also to connectivity of electronic conducting phase which is metallic Ni.
Furthermore, anode substrate in anode-supported type SOFC should also play as a mechanical support for the thin electrolyte and cathode films and as a gas diffusion path for the supply of the fuel to reaction sites [1-3].
The electrical and electrochemical properties of anode substrate are governed not only by the electrical conductivity of the metal-ceramic composite itself but also by the appropriate connection of the gas diffusion path, in order to reduce the ohmic and diffusion polarization losses of the cell performance, respectively.
Commonly used Ni/YSZ cermet is known to have many desirable properties for anode substrate because it has both electronic conduction path through metallic Ni and ionic conduction path through YSZ.
Microstructure evolution by applied compaction pressure control affected also to connectivity of electronic conducting phase which is metallic Ni.
Online since: August 2005
Authors: Eun Sang Lee, Y.-J. Chun, Nam Kyung Kim
Kim
3
1
Department of Mechanical Engineering, Inha Univ., 253 Yonghyun-Dong,Nam-Gu,Incheon, Korea
2
School of Mechanical Engineering, Inha Univ., 253 Yonghyun-Dong,Nam-Gu,Incheon, Korea
3
Automatic Engineering Division, Chinju National University, Chinju, Korea
Keywords: Rotary diamond dressing, Centerless grinding, Current signal, AE signal, Hall sensor
Abstract The optimum condition selection of rotary dressing operations using Hall and AE sensor
is presented.
The surface finish is affected by the grain size, grit and bonding materials of the grinding wheel; dressing methods; workpiece material properties; dressing conditions such as rotating speed, feed speed and coolant.
Especially diamond to diamond contact type dressing for 200 mm wide-width grinding wheel is regarded critical factor to obtain high quality surface and shape accuracy of optical ferrule in centerless grinding process.
The surface finish is affected by the grain size, grit and bonding materials of the grinding wheel; dressing methods; workpiece material properties; dressing conditions such as rotating speed, feed speed and coolant.
Especially diamond to diamond contact type dressing for 200 mm wide-width grinding wheel is regarded critical factor to obtain high quality surface and shape accuracy of optical ferrule in centerless grinding process.
Online since: August 2020
Authors: I. Nyoman Jujur, Anawati Anawati, Sri Rahmadani, Razie Hanafi
Introduction
There are several requirements for implantable material to be used in the clinic, such as high biocompatibility, sufficient strength to withstand high mechanical loads, excellent corrosion resistance, and bioactivity.
Titanium (Ti) and its alloys have become the selected material for long-term orthopedic implant applications because of their suitable mechanical properties.
Several parameters affect the EPD process, including deposition time, applied voltage, HA concentration, and substrate conductivity.
The type of solvent for HA coating suspensions is a crucial factor for the success of the EPD process.
Titanium (Ti) and its alloys have become the selected material for long-term orthopedic implant applications because of their suitable mechanical properties.
Several parameters affect the EPD process, including deposition time, applied voltage, HA concentration, and substrate conductivity.
The type of solvent for HA coating suspensions is a crucial factor for the success of the EPD process.
Online since: February 2011
Authors: Xue Mei Wu, Tao Yu, Lan Jian Zhuge
This kind of electrical properties is to enable Ag has long been of interest for use as a low-resistivity electrode material [11,12].
The results from our previous works show that Hf0.54Ta0.46O-based capacitor exhibits the excellent structures and electrical properties, such as (1)high dielectric constant and crystallization temperature. (3)excellent interfacial properties and thermal stabilities. (4)low frequency dispersion and leakage current density [17,18,19].
Results and Discussion C-V curves and dielectric properties.
I-V curves and dielectric properties Fig.3.
Conclusion In summary, the influence of three metal electrodes (Ag, Au, Pt) on the dielectric and electrical properties of HfTaO-based MOS capacitors were investigated.
The results from our previous works show that Hf0.54Ta0.46O-based capacitor exhibits the excellent structures and electrical properties, such as (1)high dielectric constant and crystallization temperature. (3)excellent interfacial properties and thermal stabilities. (4)low frequency dispersion and leakage current density [17,18,19].
Results and Discussion C-V curves and dielectric properties.
I-V curves and dielectric properties Fig.3.
Conclusion In summary, the influence of three metal electrodes (Ag, Au, Pt) on the dielectric and electrical properties of HfTaO-based MOS capacitors were investigated.
Online since: January 2016
Authors: Klara Necadova, Petr Selnik, Hana Bedliva, Martin Mohapl
The material has almost the same properties as SENIZOL AT14.
Parameter that most compensates the material properties of the water flow is the pitch of the roof.
The properties of material are therefore variable with angle and in the case of commercial use of the material it is necessary to define its properties accordingly to installation in different inclinations of the structure.
Similar properties can be found also in the mentioned element IZOL 175P.
The measured properties are influenced by fire improvement, which is the material treated with.
Parameter that most compensates the material properties of the water flow is the pitch of the roof.
The properties of material are therefore variable with angle and in the case of commercial use of the material it is necessary to define its properties accordingly to installation in different inclinations of the structure.
Similar properties can be found also in the mentioned element IZOL 175P.
The measured properties are influenced by fire improvement, which is the material treated with.
Online since: November 2016
Authors: Susanne Staehlke, Karine Anselme, Birgit Finke, Matthias Schnabelrauch, Henrike Rebl, J. Barbara Nebe, Caroline Moerke, Christiane A. Helm, Marcus Frank
A crucial factor for ingrowth of permanent implants in the bone is the rapid cellular acceptance.
The topographical features often follow mechanical aspects for implant stability.
Cells are able to perceive the physico-chemical properties of their surrounding and to pass these signals into the cell to modulate their adhesion structures, growth or production of extracellular matrix.
Cells are able to perceive the physico-chemical properties of their surrounding and to pass these signals into the cell to modulate their adhesion structures, growth or production of the extracellular matrix.
Besides physical properties, the adhesive interactions of cells with a material surface are controlled by chemical characteristics of the surface [3].
The topographical features often follow mechanical aspects for implant stability.
Cells are able to perceive the physico-chemical properties of their surrounding and to pass these signals into the cell to modulate their adhesion structures, growth or production of extracellular matrix.
Cells are able to perceive the physico-chemical properties of their surrounding and to pass these signals into the cell to modulate their adhesion structures, growth or production of the extracellular matrix.
Besides physical properties, the adhesive interactions of cells with a material surface are controlled by chemical characteristics of the surface [3].
Online since: May 2011
Authors: De An Zhao, Yun Yan Yu, Zhi Min Chen
Soft rock crushing, high geostress state, high horizontal lateral pressure coefficient and other factors led to the poor stability for the shaft.
Soft rock crushing, high geostress state, high horizontal lateral pressure coefficient and other factors led to the poor stability for the shaft.
Affected by faults, rock mass is seriously broken.
The Time-dependent ProPerties of tunnel in highly stressed roeks.
Study on Mechanical Properties of Support Structure of Deep Buried Tunnel Soft and Weak Surrounding Rock in High Situ Stress Area[J].
Soft rock crushing, high geostress state, high horizontal lateral pressure coefficient and other factors led to the poor stability for the shaft.
Affected by faults, rock mass is seriously broken.
The Time-dependent ProPerties of tunnel in highly stressed roeks.
Study on Mechanical Properties of Support Structure of Deep Buried Tunnel Soft and Weak Surrounding Rock in High Situ Stress Area[J].
Online since: September 2013
Authors: Tijjani Adam, U. Hashim, M. Wesam Al-Mufti
Using heat transfer model at the macro-scale and experimentally reported material’s thermoelectric properties (S, σ, κ), the performance of SiNW as a thermoelectric material is re-evaluated in a realistic scenario here(2).
In nanowire as nanotechnology using by the piezoelectric model in COMSOL Multiphysics, piezoelectric effect can be seen as a transfer of electric to mechanical energy and vice-versa.
Buddharaju presented Poly nanowire (Si-NW) based thermoelectric device (TED) has potential applications, Christian Falconi presented in Piezoelectric nanostructures can transduce mechanical energy into electrical energy for powering implantable microsystems for in-vivo biomedical applications(5,6).
In addition, they factor in the electrical contact resistance and investigate how such effect can prove detrimental to its thermoelectric performance.
Hypothetically, the size of the Si-NW will affect the contact resistance due to the difference in the area contacted to the metal electrodes, i.e. when the diameter of the Poly-Si-NW is reduced, the electrical contact resistance should increase as well.
In nanowire as nanotechnology using by the piezoelectric model in COMSOL Multiphysics, piezoelectric effect can be seen as a transfer of electric to mechanical energy and vice-versa.
Buddharaju presented Poly nanowire (Si-NW) based thermoelectric device (TED) has potential applications, Christian Falconi presented in Piezoelectric nanostructures can transduce mechanical energy into electrical energy for powering implantable microsystems for in-vivo biomedical applications(5,6).
In addition, they factor in the electrical contact resistance and investigate how such effect can prove detrimental to its thermoelectric performance.
Hypothetically, the size of the Si-NW will affect the contact resistance due to the difference in the area contacted to the metal electrodes, i.e. when the diameter of the Poly-Si-NW is reduced, the electrical contact resistance should increase as well.