phas 中文意思是什麼

phas 解釋
多重
  1. Three stages of deformation can be distinguished from the cataclastic superposition of matrices that infilled the microcracks in cataclastic rocks, and two phas es of paleotectonic stress field from the typical conjugated shear joints by stereograms illustrating

    構造巖中膠結物和微裂隙充填脈反映了巖石碎裂變形的三次疊加。斷裂變形帶內發育兩期典型的共軛剪節理，但區域分佈各有特點，反映出斷裂變形的空間演化。
  2. Moreover, extracting and purification of phas directly from 32 positive transformants by chloroform - hypochloric acid showed that 25 transformants obtained the product

    用氯仿-次氯酸鈉對32株pcr - southern檢測為陽性的轉化植株中進行phas抽提，有25株中得到目的產物。
  3. Poly - 3 - hydroxybutyrate ( phb ) and other related polyhydroxyalkanoates ( phas ) are biodegradable thermoplastic polyesters stored in numerous bacteria as carbon and energy reserves and now have been regarded as ideal alternatives to traditional petroleum - derived plastics, which cause severe environmental and waste management problems

    聚3 -羥基丁酸酯（ poly - 3 - hydroxybutyrate ， phb ）及其它類型的聚3 -羥基鏈烷酸酯同屬于聚酯類物質，是自然界中多種細菌的碳源及能源儲備物。
  4. Qualitative and quantitative detection of plants phas using gas chromatography ( gc ) indicated that hd were the major composition of phas and the maximum pha accumulation was 22 mg / g dry weight

    用氣相色譜法對轉基因植株中的pha進行定性定量檢測，確定pha的主要成分為羥基癸酸（ hydroxydecanoate ， hd ） ，表達量最高為2 . 2干重。
  5. Because phb / phas production by bacteria fermentation is prohibitively expensive, great attention has been focused on the synthesis of phb in plants using co2 for carbon and sunlight for energy, which is considered as a promising strategy to obtain price - competitive biodegradable plastics

    這種聚酯的物理化學特性與傳統塑料相似，並具有生物可降解性，如能取代化學合成塑料將減少環境中的塑料廢棄物，從源頭治理「白色污染」問題。
  6. Thirdly, a modified extended chirp scaling ( ecs ) algorithm is presented, which solves the problem of producding fine focused images in the class of chirp scaling ( cs ) algorithm. lt can be used for uwb - sar imaging effectively. the phas e error produced by cs operation are analyzed. a windowed process in two dimension frequency domain before cs operation are proposed. it can improve the quality of image and widen the effectively swath and increase the peak to sidelobe ratio ( pslr )

    然後針對chirpscaling （ cs ）類演算法不能對參考點精確聚焦的問題，提出了一種改進的擴展cs （ ecs ）演算法，實現了對uwb - sar的高效成像；分析了cs操作產生的相位誤差，提出在cs操作之前在二維頻率域對信號加窗，除有效提高信號的峰值旁瓣比（ pslr ）外，還可以提高圖像質量，增加有效測繪帶寬度。
  7. Phas, as one of the most interesting biodegradable material have a lot of promising applications in medicine, agriculture, environment and food industry

    由於它具有生物可降解性、生物相容性等特徵，因而在醫藥、農業、環境及食品等領域有潛在的利用前景。
  8. It can be classified into three categories, such as short chain length ( scl ) phas, medium chain length ( mcl ) phas, and phas containing monomer of hb and has ( hydroxyalkanoates )

    聚羥基脂肪酸酯（ polyhydroxyalkanoates ， phas ）是細菌細胞中的一種多聚物，可分為短鏈pha 、中鏈pha及含短鏈與中鏈單體的pha 。
  9. To indetify the function of phaa, phab and phac, three genes were amplifed from the subclone of pseudomanas sp. producing phas ( poly - 3 - hydroxyalkanoates ) by pcr

    為了分析驗證phaa 、 phab和phac三個基因的生物學功能，本實驗採用pcr技術，從合成pha的pseudomanassp
  10. A kind of triplepolymer will possibly be synthesized by metabolic regulation in s. fredii. a new series of phas products will be exploited

    該菌通過代謝調控有可能合成全新的phas三聚體，開發一類新型的生物材料。
  11. P ( hb - hh ) and p ( hb - ho ) was considered as new kinds of phas. especially, p ( hb - ho ) was a newly synthesize biologic material

    這種新材料對于解決白色污染的環境問題以及醫學組織工程框架材料有著重要的應用價值。
  12. Band of c = o group around 1724 cm " ' was suggested for the characteristic band of pha were observed on the ft - ir spectra of both of the fresh tobacco leaves and their extractions. twenty - five percent of transformed tobacco plants were detected to produce phas

    提取物及新鮮轉化植株葉片用傅立葉變換紅外光譜進行定性檢測，在1724cm ~ （ - 1 ）附近有特徵吸收峰確定其為pha ，從而證實有25 . 00的轉基因植株已含有了目的產物。
  13. Strain pseudomonas psuedoalcaligenese ys1 was capable of producing phas containing monomer of hb and mcl has in certain medium. phacl and phac2, two key polyhydroxyalkanoates polymerase genes of pha biosynthesis were amplified and cloned from chromosomal dna of pseudomonas psuedoalcaligenese ys1 using pcr

    本研究利用聚合酶鏈式反應（ pcr ）技術，從p . psuedoalcaligeneseys1染色體dna中擴增並克隆了調控短鏈與中鏈pha生物合成的兩個關鍵酶基因： phac1 、 phac2基因。
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