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Tzu-Chieh Lin,Shao-Chi Yu,Pei-Shiang Chen,Kai-Yuan Chi,Han-Chang Pan,Chih-Yu Chao 한국물리학회 2009 Current Applied Physics Vol.9 No.3
In this article, thermal nanoimprint lithography (thermal-NIL) has been utilized to transfer the microgroove pattern onto the plastic substrate. Without coating alignment polymer, the microgrooves on the flexible substrates can align liquid crystals (LCs) directly. The flexible LC cell is shown to maintain comparable electro-optical properties while bending. The plastic film and the alignment layer integrated into an alignment substrate could effectively prevent cracks of the additional polymer alignment layer during the bending process. This method is applicable to the roll-to-roll process to increase the production efficiency. In this article, thermal nanoimprint lithography (thermal-NIL) has been utilized to transfer the microgroove pattern onto the plastic substrate. Without coating alignment polymer, the microgrooves on the flexible substrates can align liquid crystals (LCs) directly. The flexible LC cell is shown to maintain comparable electro-optical properties while bending. The plastic film and the alignment layer integrated into an alignment substrate could effectively prevent cracks of the additional polymer alignment layer during the bending process. This method is applicable to the roll-to-roll process to increase the production efficiency.
Parameter Optimization of Micromilling Brass Mold Inserts for Microchannels with Taguchi Method
Pin-Chuan Chen,Yu-Chieh Chen,Chang-Wei Pan,Kuan-Ming Li 한국정밀공학회 2015 International Journal of Precision Engineering and Vol. No.
Achieving excellent quality of micromilled surfaces usually requires additional efforts and cost, and Taguchi methodology is anefficient tool in the parameter optimization process. The aim of this study is to explore the optimal cutting parameters for minimalsurface roughness of a micromilled brass mold inset, and the controlling parameters included coolant, spindle speed, feed rate, depthof cut, and the stepover. An orthogonal array and factor analysis were carried out to identify the optimal cutting combination, andthis combination included air coolant, spindle speed of 45,000 rpm, feed rate of 100 mm/min, stepover of 10% of milling bit diameter,and the depth of cut of 5 μm. To further confirm the analysis, multiple confirmation runs were realized and the averagely measuredsurface roughness was 0.03 μm with a stand deviation of 0.004 μm.
Hsu Te-Hua,Huang Chang-Wen,Lin Cheng-Hui,Lee Hung-Tai,Pan Chieh-Yu 한국수산과학회 2020 Fisheries and Aquatic Sciences Vol.23 No.2
Stock enhancement is considered to be a valuable approach for restoring fishery resources. Because no specific official institution in Taiwan is responsible for the production of fry, the released fry are purchased directly from the private sector. However, fishermen from the private industry have not established a genetic background, so the genetic composition for each batch of released fry is unclear. Mangrove red snapper (Lutjanus argentimaculatus), a prominent species released in Taiwan, was collected after its official release. One hundred and two field samples were compared with four batches of hatchery fry (n = 685) by using a microsatellite-based multiplex PCR assay. Four of the field samples (3.9%; 4/102) were revealed to be from a fish farm and most likely from a single batch. This study revealed that wild mangrove red snappers are genetically different from those originating from farms, and their origins can be traced through molecular markers, even without information on breeding stocks.
Hsu, Te-Hua,Huang, Chang-Wen,Lin, Cheng-Hui,Lee, Hung-Tai,Pan, Chieh-Yu The Korean Society of Fisheries and Aquatic Scienc 2020 Fisheries and Aquatic Sciences Vol.23 No.5
Stock enhancement is considered to be a valuable approach for restoring fishery resources. Because no specific official institution in Taiwan is responsible for the production of fry, the released fry are purchased directly from the private sector. However, fishermen from the private industry have not established a genetic background, so the genetic composition for each batch of released fry is unclear. Mangrove red snapper (Lutjanus argentimaculatus), a prominent species released in Taiwan, was collected after its official release. One hundred and two field samples were compared with four batches of hatchery fry (n = 685) by using a microsatellite-based multiplex PCR assay. Four of the field samples (3.9%; 4/102) were revealed to be from a fish farm and most likely from a single batch. This study revealed that wild mangrove red snappers are genetically different from those originating from farms, and their origins can be traced through molecular markers, even without information on breeding stocks.
Hui-Chung Teng,Huei-Lung Liang,Yih-Huie Lin,Jer-Shyung Huang,Chiung-Yu Chen,Shang-Chieh Lee,Huay-Ben Pan 대한영상의학회 2013 Korean Journal of Radiology Vol.14 No.2
Objective: To evaluate the clinical efficacy as well as long-term clinical outcomes of superselective microcoil embolization for lower gastrointestinal bleeding (LGIB). Materials and Methods: Between 1997 and 2009, 26 patients with intended transcatheter embolotherapy for LGIB were retrospectively reviewed. Embolization was performed only when the catheter could be advanced to or distal to the mesenteric border of the bowel. The main purpose of our study was to assess technical success, recurrent bleeding rate and complications. We also evaluated the long-term clinical outcome, including late recurrent LGIB, bowel ischemia and the survival rate. Results: Twenty-two bleeding sources were in the territory of superior mesenteric artery and four in the inferior mesenteric artery. Technical success was achieved in 22 patients (84.6%). The target vessel of embolization was vasa recta in seventeen patients and marginal artery in the remaining five patients. Early rebleeding occurred in two patients (7.7%) and bowel ischemia in two patients, of whom the embolized points were both at the marginal artery. Delayed recurrent bleeding (> 30 days) occurred in two angiodysplasia patients. Five patients (19.2%) died within the first 30 days of intervention. Long-term follow-up depicted estimated survival rates of 58.2 and 43.1% after one, and five years, respectively. Conclusion: Transcatheter embolotherapy to treat LGIB is effective with low rebleeding and ischemic complications. Considering the advanced age and complex medical problems of these patients, the minimal invasive embolotherapy may be used as both a primary and potentially definitive treatment of LGIB.