1,854 Result(s)
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Article
Symposium M
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Article
Book Reviews
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Article
GaN m-i-n LED grown by MOVPE
Undoped and Zinc-doped GaN films have been grown using TMGa, DEZn and Ammonia by MOVPE. The GaN blue-green LEDs of m-i-n structure have been fabricated. They can be operated at forward bias less than 5 volts. ...
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Rapid extraction of epidermis chlorophyll of moso bamboo (Phyllostachys pubescens) culm using ultrasonics
The feasibility of applying ultrasonics to the chlorophyll extraction of bamboo culm was evaluated to establish an efficient reliable method for chlorophyll extraction from the epidermis of bamboo culm. The re...
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Dynamic modulus of elasticity and bending properties of large beams of Taiwan-grown Japanese cedar from different plantation spacing sites
The effect of plantation spacings (types A-E) on the bending strength and dynamic modulus of elasticity of 41-year-old Taiwan-grown cedar (Cryptomeria japonica D. Don) was investigated. The results indicate that ...
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Assessment of temperature and relative humidity conditioning performances of interior decoration materials
The purpose of this study was to explore conditioning effects on wood panels (used as interior decorative materials). We examined hourly the temperature and relative humidity (RH) in a living environment based...
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Assessment of hygroscopic conditioning performance of interior decorative materials IV: Sorption characteristics of wood under high relative humidity condition
The equilibrium moisture content (EMC) of six wood species under desorption conditions of 20°C and 100% → 0% relative humidity (RH), and the rate of adsorption at various depths of three wood species blocks un...
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Effects of mat moisture content and press closing speed on the formation of density profile and properties of particleboard
Isocyanate resin-bonded 0.5 and 0.7 g/cm3 lauan (Shorea sp.) particleboards were produced from mats with uniform and distributed moisture content (MC) distributions, using three hot press closing speeds. The effe...
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Effects of moisture content and specific gravity on static bending properties and hardness of six wood species
This study was designed to investigate the effects of moisture content (MC) and specific gravity (SG) on the bending strength and hardness of six wood species including Japanese cedar (Cryptomeria japonica D. Don...
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Red color enhancement of sugi (Cryptomeria japonica D. Don) heartwood by light irradiation
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Comparison of internal bond strength and compression shear strength of wood-based materials
The purpose of this study was to design a compression shear device for easy and fast measurement of the bonded shear strength of wood-based materials to replace the conventional method used to evaluate interna...
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Thermal Residual Stress Modeling in AlN and GaN Multi Layer Samples
Thermal residual stresses can detrimentally affect the electronic and optical properties of epitaxial films thereby shortening device lifetime. Based on our earlier work on thermal expansion of nitrides, we pr...
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Focused Ion Beam Etching of GaN
We have investigated the use of focused ion beam (FIB) etching for the fabrication of GaN-based devices. Although work has shown that conventional reactive ion etching (RIE) is in most cases appropriate for th...
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Preparation and sizing mechanisms of neutral rosin size II: functions of rosin derivatives on sizing efficiency
Four rosin derivatives, including rosin esters and rosinamides, were synthesized and used to prepare neutral rosin sizes. Their effects during sizing are discussed in detail. Compared to natural rosin, the ros...
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High Quality Hydrothermal ZnO Crystals
Zinc Oxide crystals have historically been grown in hydrothermal autoclaves with a basic mineralizer; however, doubts have been raised about the quality of such crystals because they have often exhibited large...
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Cubic InGaN Grown by MOCVD
We report on the growth of high-quality cubic phase InGaN on GaAs by MOCVD. The cubic InGaN layers are grown on cubic GaN buffer layers on GaAs (001) substrates. The surface morphology of the films are mirror-...
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Epitaxial Growth of III-Nitride Layers on Aluminum Nitride Substrates
High quality, epitaxial growth of AlN and AlxGa1−xN by OMVPE has been demonstrated on single-crystal AlN substrates. Here we report characterization of epitaxial layers on an a-face AlN substrate using Rutherford...
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Studies on the synthesis and properties of terpene-phenol-aldehyde resin with a high softening point
Synthesis conditions of terpene-phenol-aldehyde resin with a high softening point were studied based on the reactions amongα-pinene, phenol, and formaldehyde. A suitable catalyst system and the best processing co...
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Formation of the density profile and its effects on the properties of fiberboard
Two main types of fiberboards were produced using lauan (Shorea spp.) fibers with an isocyanate resin as the binder; fiberboard with a flat, homogeneous (homoprofile), and typical U-shaped (conventional) density ...
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Composition of acidic components in Chinese raw tall oil
Chinese raw tall oil samples, which were obtained from pulp and papermaking factories in Qingzhou and Jiamusi, were first divided into acidic and neutral parts with a diethylaminoethyl-Sephadex (DEAE-Sephadex)...
