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Article
Design of plate heat exchangers for use in medium temperature organic Rankine cycles
An organic Rankine cycle (ORC) is used to efficiently recover the exhaust gas waste heat discharged from a ship. One of the crucial factors that determines the efficiency of an ORC system is the heat exchanger...
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Article
Design and experimental verification of flexible plate-type piezoelectric vibrator for energy harvesting system
Piezoelectric systems are commonly utilized to transform mechanical vibrations to electrical energy that can be used to diverse power devices. In this work, it has been studied to improve the efficiency of a p...
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Article
Direct fabrication of nano-wrinkled 3D microstructures using fitfully accumulated two-photon polymerization
In this paper, we study the accumulated polymerization effect in the two-photon stereolithography process and its application. In the two-photon stereolithography process, less-polymerized material by insuffic...
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Article
Selective ablation-assisted two-photon stereolithography for effective nano- and microfabrication
The two-photon stereolithography (TPS) process has strong merits for the direct fabrication of 2-D and 3-D microstructures with sub-100-nm resolution. In this paper, we report an effective fabrication process ...
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Article
Ultra high resolution, low temperature, direct metal patterning by selective laser processing of solution deposited metal nanoparticles
All-printed electronics is the key technology to ultra-low-cost, large-area electronics. As a critical step in this direction, we demonstrate that femtosecond laser processing (sintering and ablation) of solut...
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Article
Highly effective three-dimensional large-scale microfabrication using a continuous scanning method
Effective scanning is an important issue in two-photon induced stereolithography (TPS) for the reduction of the processing time required to fabricate three-dimensional (3D) nano/microstructures. In large-scale...
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Article
Improvement of spatial resolution in nano-stereolithography using radical quencher
The improvement of spatial resolution is a fundamental issue in the two-photon, polymerization-based, laser writing. In this study, a voxel tuning method using a radical quencher was proposed to increase the r...
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Article
Direct laser patterning on opaque substrate in two-photon polymerization
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Article
Flow pattern and pressure drop of pure refrigerants and their mixture in horizontal tube
Two-Phase flow pattern and pressure drop data were obtained for pure refrigerants R134a and R123 and their mixtures as test fluids in a horizontal tube. The flow pattern is observed through tubular sight glass...
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Article
Contour offset algorithm (COA) in nano replication printing (nRP) for fabricating nano-precision features
A Contour Offset Algorithm (COA) has been developed to fabricate nano-precision figures or patterns in the range of several microns by a nano-Replication Printing (nRP) process. In the nRP process, a femtoseco...
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Article
An experimental investigation of heat transfer in forced convective boiling of R134a, R123 and R134a/R123 in a horizontal tube
This paper reports an experimental study on flow boiling of pure refrigerants R134a and R123 and their mixtures in a uniformly heated horizontal tube. The flow pattern was observed through tubular sight glasse...
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Article
A study on pressure drop characteristics of refrigerants in horizontal flow boiling
An experimental investigation on the flow pattern and pressure drop was carried out for both an adiabatic and a diabatic two-phase flow in a horizontal tube with pure refrigerants R134a and R123 and their mixt...
