25 Result(s)
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Article
Drop size distribution and holdup in a rotating impeller extraction column
A stagewise hydrodynamic model, applying drop population balance equations derived from models for breakage and coalescence of drops in a countercurrent liquid-liquid extraction system, was developed to predic...
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Article
Extraction of proteins and polymers using reverse micelles and percolation process
Specific interfacial properties, which affect protein extraction in AOT and AOT-lecithin reverse micellar systems (RVMS), have been studied by using their percolation processes. Solubilization of proteins or s...
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Article
Modification of polycarbosilane as a precursor with high ceramic yield for oxygen-free SiC fibers
Polycarbosilane (PCS) was modified by addition of 1 wt% polyborazine and subsequent heat treatment at 70-400 °C. The modified PCS exhibited highly improved ceramic yield from original 63% to 78% by heating at ...
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Article
Multicomponent batch distillation with distillate receiver
Based on the assumption of adiabatic equilibrium stages, a rigorous calculation procedure applicable to a multicomponent batch distillation with a distillate receiver under total reflux condition was developed...
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Article
The kinetics of oxidation curing of polycarbosilane fibers
For the oxidation curing of polycarbosilane (PCS) fibers in air, a first-order reaction based on the weight gainw (in percentage) was approached with the kinetic equationdwldt=k(w m-w). Th...
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Article
Interaction between reverse micelles as a key factor governing back-extraction of proteins and its control systems
The interfacial transport processes of proteins from a reverse micellar phase to an aqueous phase have been investigated focusing on micellar-micellar interaction. The proteins solubilized into reverse micelle...
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Article
Influence of oxidation temperature on the gas permeation and separation properties in a microporous carbon membrane
Of thermosetting polymers, polyphenylene oxide (PPO) is considered as one of the promising alternative polymeric precursors for carbon membrane preparation. In this study, the PPO derived carbon membranes were...
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Article
Simulation of clutch actuation system for commercial vehicle
Generally, a method of a hysteresis loop is used to show the property of the clutch system in the design process. This represents the load by a pedal travel which is a useful data for designing a vehicle for t...
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Article
Semi-analytic correlation for predicting permeability of micro-square-pillar array
In this study, we consider the permeability of hexagonal arrays of micro-square pillars. A semi-analytic model for predicting the permeability of micro-square pillar arrays is developed. In addition, a numeric...
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Article
Least material optimization of natural-convective heat sinks
In this study, the least material optimization of natural convective heat sinks subject to a localized heat source is performed. An analytic method for predicting the thermal resistances of fin array and heat ...
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Article
Thermodynamic behaviors of magnetic-fluid in a thin channel with magnetic field and aspect ratio
The objective of this study is to numerically investigate the thermodynamic behaviors of a magnetic fluid with nano-sized magnetic particles in a thin channel. The numerical model developed using the FEM (fini...
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Article
Improvement of crack sizing performance by using nonlinear ultrasonic technique
The nonlinear ultrasonic technique (NUT) based on the contact acoustic nonlinearity (CAN) has been considered as a promising method for the closed crack detection. However, most of the previous studies were li...
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Article
Analytic correlation for the capillary pressure of micro-square-pillar arrays
In this study, the capillary pressure of hexagonal arrays of micro-square-pillars is investigated analytically. The effects of spacing between pillars (30 ≤ s ≤ 90 μm) and contact angle (10° ≤ θ ≤ 50°) on the ...
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Article
Effects of limb motion on locomotive efficiency in bio-inspired four-legged walking machine
Legged walking machines have been based more on technical rather than on biological concepts, yielding unstable locomotion with low speed. Coordinated leg mechanisms of terrestrial vertebrates enable them to m...
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Article
Determination of histogram type of cell images in microsystem for cell tracking
The process of separating cell objects from a background is very important in cell image analysis and cell tracking. Most cell image histograms that have uneven illumination during microscopic cell imaging hav...
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Article
New electro-magnetic actuator for active vibration isolators
Vibration limits the performance of the ultra-precision machine in numerous applications, thus the need to dissipate the effect of vibration has become crucial. This paper proposes a new design for a voice coi...
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Reference Work Entry In depth
Desktop Chemical Factory
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Article
The effects of different anesthetic methods on neuronal activity and movement symptoms of Parkinson’s disease
Deep brain stimulation (DBS) of the subthalamic nucleus (STN) is widely used in the treatment of Parkinson’s disease. DBS surgery is usually performed with the patient under local anesthesia (LA). However, a n...
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Article
Navigation of mobile robot using Low-cost GPS
A method of fusing data from a Global Positioning System (GPS) and a Dead Reckoning (DR) system for outdoor navigation of a Wheeled Mobile Robot (WMR) is proposed. The low-cost GPS receiver cannot be utilized ...
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Article
Open AccessOne-flow syntheses of diverse heterocyclic furan chemicals directly from fructose via tandem transformation platform
The sustainable green chemistry associated with lignocellulosic biomass is of current interest for producing various chemical feedstocks via multi-step transformation processes. Here we introduce a chemical pl...
