New production method of convex microlens arrays for integrated fluorescence microfluidic detection systems

A new method for producing microlens array with large sag heights is proposed for integrated fluorescence microfluidic detection systems. Three steps in this production technique are included for concave microlens array formations to be integrated into microfluidic systems. First, using the photoresist SU-8 to produce hexagonal microchannel array is required. Second, UV curable glue is injected into the hexagonal microchannel array. Third, the surplus glue is rotated by a spinner at high velocity and exposed to a UV lamp to harden the glue. The micro concave lens molds are then finished and ready to produce convex microlens in poly methsiloxane (PDMS) material. This convex microlens in PDMS can be used for detecting fluorescence in microfluidic channels because a convex microlens plays the light convergence role for optical fiber detection

Effects+of+Ambient+Temperature+on+Laying+and+Reproductive+Performance+of+Taiwan+Country+Chicken+Female+Breeders

本試驗之目的，在探討高環境溫度對台灣土雞種母雞產蛋與繁殖性能之影響。選取中興大學（動物科學系）育成、48週齡之BxDxL2品系台灣土雞種母雞48隻，分別依產蛋成績及體重區分為三個環境溫度處理組，使各處理組之產蛋成績及體重相近，雞隻飼養於環境溫度控制室中，室內溫度區分為(1)持續高溫組(34±1℃)，(2)自然氣溫組(24~361℃)與(3)持續適溫組(24±1℃)，採籠式飼養，每日光照15小時，水與飼料採任食，試驗期為4週。結果顯示，採食量、產蛋率、蛋重、受精率、孵化率及出生雛雞重均以持續高溫組顯著較其他二組為低(P0.05)，而血漿中主甲濃度和直腸溫度，則以持續適溫組顯著較其他二組為低(P<0.05)。台灣土雞種母雞，其產蛋與繁殖性能以持續適溫組最佳，自然氣溫組次之，而以持續高溫組最差，顯示高環境溫度對台灣土雞之生理與生產性狀有不良之影響。This experiment was carried out to study the effects of ambient temperature on the laying production and reproductive traits of Taiwan Country Chicken Breeder hens. Forty-eight Taiwan Country Chicken Breeder hens, 48 wks old, line BXDXL2 bred by Dept. of Animal Science, National Chung-Hsing University, were divided into 3 groups of four hens, according to egg production and body weight. Each group of hens was made four replicates and housed in one of three different ambient temperature: (1) Constant high temperature (34±1℃), (2) Constant moderate temperature (24±1℃), and (3) Natural variable temperature (24-36℃) respectively. The birds were raised in wire cage with a light dark schedule of 15:9 hr. Feed and water were supplied ad libitum. The experimental period was four weeks. The results indicated that body weight loss was significantly increased (p<0.05) and feed consumption was significantly decreased (p<0.05) when birds were raised under constant high ambient temperature. The egg production rate, egg weight, fertility, hatchability and chicks body weight in constant high ambient temperature treatment was lower (p<0.05) than those in other two treatments. In quality of egg shells, shell weight percentage, shell breaking strength, shell thickness and egg specific gravity in constant moderate temperature group was the best among three groups and in constant high temperature group was worst. In internal quality of eggs, albumin weight and yolk weight of eggs in constant high temperature group were significantly lower (p<0.05) and haugh units was significantly higher (p<0.05), egg shape index and egg yolk index were no difference among environmental temperature treatments. In blood traits, blood hematocrit and concentrations of sodium, total calcium, inorganic phosphorus, total protein, globulin, thyroxine, estradiol of plasma in constant temperature were significantly lower (p<0.05), the concentrations of plasma of birds raised potassium and rectal temperature of birds received contant moderate temperature were significantly lower (p<0.05) among treatments

New production method of convex microlens arrays for integrated fluorescence microfluidic detection systems

A new method for producing microlens array with large sag heights is proposed for integrated fluorescence microfluidic detection systems. Three steps in this production technique are included for concave microlens array formations to be integrated into microfluidic systems. First, using the photoresist SU-8 to produce hexagonal microchannel array is required. Second, UV curable glue is injected into the hexagonal microchannel array. Third, the surplus glue is rotated by a spinner at high velocity and exposed to a UV lamp to harden the glue. The micro concave lens molds are then finished and ready to produce convex microlens in poly methsiloxane (PDMS) material. This convex microlens in PDMS can be used for detecting fluorescence in microfluidic channels because a convex microlens plays the light convergence role for optical fiber detection