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EVOLUTION OF THE TIMES WHEN THE TRADITIONAL MATERIALS ENCOUNTER INTERACTIVE TECHNOLOGY
Chen-Wei Chiang,Min-Shiue Wu,Meng-Te Hsieh,Chia-Yu Kao,Chun-Yan Liu 한국디자인학회 2015 한국디자인학회 학술발표대회 논문집 Vol.2015 No.10
The Reflection of Bamboo combines traditional materials with interactive technology, analyzing what the characteristics of the old and new materials are, as well as how to apply technology to the integration of these materials. Through this installation, we reconsider the possibility of integrating traditional materials with modern technology. Adopting bamboo as the main material, this installation raises the spirit of traditional techniques in a unique way and employs bamboo’s special tenacity. Viewers can interact with this installation and experience the strength, esthetics and variation in the demonstrated shadow.
An Intelligent Agriculture Network Security System Based on Private Blockchains
Hsin-Te Wu,Chun-Wei Tsai 한국통신학회 2019 Journal of communications and networks Vol.21 No.5
Countries around the world are nowadays actively promotingdevelopment in intelligent agriculture. Each of them mustdevelop a specific plan tailored to environmental farming indices ofeach individual farm, and such information would be both importantand sensitive. This is why information in intelligent agriculturerequires protection from network security to ensure data privacyand integrity. This study proposes applying dark web technologyto ensure the privacy of blockchains and servers. The study willmonitor packet transmission frequency in intelligent agriculture toprevent distributed denial-of-service (DDOS) attacks. The mainfeatures of system include: (1) An identity authentication mechanism,(2) secure transmission of information, (3) establishment ofprivate blockchains, (4) a faster, improved authentication systemfor blockchain information, and (5) resistance against DDOS attacks. The proposed scheme can safeguard network security for theIoT as well as the servers by way of applying dark web technology,which can avoid exposure of blockchains and server ID addressesand thus in turn lower the risks of DDOS attack damages. Experimentresults indicate that the application of lightweight encryptionof proposed scheme does indeed improve the authentication speedwhile also satisfying requirements of network security.
( Chih Chun Hsieh ),( Dong Yih Lin ),( Wei Te Wu ) 대한금속재료학회 ( 구 대한금속학회 ) 2007 METALS AND MATERIALS International Vol.13 No.5
The dispersion strengthening behavior of the σ phase in 304 modified stainless steel as hot-rolled at 1073 K has been investigated in this study. The morphology, quantity and chemical composition of the σ phase were analyzed using optical microscopy (OM), X-ray diffractometry (XRD), ferritscope (FS), and image analysis (IA). The amounts of σ phase in the stainless steels increased gradually at 1073 K as the reduction ratio increased from 0% to 75%. The XRD analyses showed that a higher reduction ratio enhanced the conversion of δ-ferrite (110) to σ phase (542). The σ phase was precipitated homogeneously at the recrystallized ferrite grains when the reduction ratio was increased from 0% to 75%.
Xiaoxiang Han,Shang-Bin Liu,Wei Yan,Chin-Te Hung,Yanfei He,Pei-Hao Wu,Li-Li Liu,Shing-Jong Huang 한국화학공학회 2016 Korean Journal of Chemical Engineering Vol.33 No.7
A series of Brønsted-Lewis acidic ionic liquid (BLAIL) catalysts consisting of sulfonated ionic liquid [SO3H-pmim]Cl and Sn(II) chloride have been synthesized and exploited for catalytic transesterification of soybean oil with methanol to biodiesel. The structural and chemical properties of these [SO3H-pmim]Cl-xSnCl2 (x=0-0.8) catalysts were characterized by different analytical and spectroscopic techniques, such as FT-IR, TGA, and NMR. In particular, their acid properties were studied by solid-state 31P NMR using trimethylphosphine oxide as the probe molecule. The BLAIL catalysts were found highly efficient for transesterification reaction due to the introduction of Lewis acidity by SnCl2 in the initially Brønsted acidic [SO3H-pmim]Cl catalyst. The effects of three independent process variables on biodiesel yield were optimized by response surface methodology (RSM). Consequently, an excellent biodiesel yield of 98.6% was achieved under optimized reaction conditions over the BLAIL catalyst with SnCl2 loading (x) of 0.7.
Chi-Hsin Liu,Chin Shueh,Tien-Chi Lan,Ko-Wei Lin,Wen-Chen Chen,Te-Ho Wu,R. D. Desautels,J. van Lierop 한국물리학회 2013 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.62 No.12
The interplay between interlayer coupling and exchange bias coupling in [NiFe/Mn] multilayerbasedthin films was investigated by using ion-beam bombardment during deposition to control theconfigurations from superlattice to nanocomposite or hybrid-structured thin films. Results showedthat well-defined interfaces in the superlattice [NiFe/Mn] thin film exhibited an interlayer couplingbehavior. In contrast, an enhanced coercivity was observed in the nanocomposite [NiFe-Mn] thinfilm. However, the hybrid [NiFe-Mn]/[NiFe/Mn] thin film with an intermixed NiFeMn alloyed filmcomponent gave rise to unusual positive exchange bias coupling.
( Chih Chun Hsieh ),( Tao Chih Chang ),( Dong Yih Lin ),( Ming Che Chen ),( Wei Te Wu ) 대한금속재료학회 ( 구 대한금속학회 ) 2007 METALS AND MATERIALS International Vol.13 No.5
The purpose of this study is to investigate the precipitation characteristics of σ phase in the fusion zone of stainless steel welds at various welding passes during a tungsten arc welding (GTAW) process. The morphology, quantity, and chemical composition of the δ-ferrite and σ phase were analyzed using optical microscopy (OM), a ferritscope (FS), a X-ray diffractometer (XRD), scanning electron microscopy (SEM), an electron probe micro-analyzer (EPMA), and a wavelength dispersive spectrometer (WDS), respectively. Massive δ-ferrite was observed in the fusion zone of the first pass welds during welding of dissimilar stainless steels. The σ phase precipitated at the inner δ-ferrite particles and decreased δ-ferrite content during the third pass welding. The σ and δ phases can be stabilized by Si element, which promoted the phase transformation of δ→σ + γ2 in the fusion zone of the third pass welds. It was found that the σ phase was a Fe-Cr-Si intermetallic compound found in the fusion zone of the third pass welds during multi-pass welding.