線形聚合物 的英文怎麼說

中文拼音 [xiànxíng]
線形聚合物 英文
linear polymer
  • : 名詞1 (用絲、棉、金屬等製成的細長的東西) thread; string; wire 2 [數學] (一個點任意移動所構成的...
  • : 動詞(聚集; 聚積) assemble; gather; get together
  • : 合量詞(容量單位) ge, a unit of dry measure for grain (=1 decilitre)
  • : 名詞1 (東西) thing; matter; object 2 (指自己以外的人或與己相對的環境) other people; the outsi...
  • 聚合物 : [化學] polymer; polymerizate; polymeric compound; polymeric substance; polymeride; polymerized su...
  • 聚合 : 1 (聚集到一起) get together2 [化學] (單體結合成高分子化合物) polymerization; polymerize 3 [生...
  1. There is alkenyl double bond in the molecular structure and can form linear homopolymer and all kinds of copolymers by various polymerization reaction

    該分子結構中含有烯基雙鍵,可以通過各種反應,性均和各種共
  2. The his - tagged peacl - gfp purified from the supernatants could polymerize into green fluorescent filamentous structures with diameter, length and shape being identical to that of muscle f - actins, which could be labeled by tritc - phalloidin ( a specific agent for staining actin microfilaments ), and were identified as having a 9 nm diameter by negative staining, corresponding with that of the muscle f - actins ( 7 - 10 nm ). under polymerization conditions, his - tagged peacl - gfp polymerized with kinetics similar to those of skeleton muscle actin, that is, an obvious lag nucleation period at the beginning of polymerization and an s - like typical polymerization curve could be obtained. the critical concentration is 0. 75 umol / l near to that of chicken muscle actin ( 0. 56 umol / l ) under the same condition

    熒光標記結熒光顯微觀察表明:從可溶性上清中純化的his - taggedpeac1 - gfp成的微絲不僅可以直接在熒光顯微鏡下觀察,也可被微絲的特異標記鬼筆環肽所標記,而且其直徑、長度以及態上與已知的肌動蛋白熒光絲一致;電鏡負染的結果進一步證實其直徑為9nm ,與傳統微絲直徑相當( 7 ? 10nm ) ;有明顯的停滯期,為典型的s型臨界濃度為0 . 75 mol l ,這一結果與已有報道相似。
  3. The fractal is a geometrical figure with self - similar symmetry, and it is an important tool for characterizing irregular structures in nature that are self - similar on certain length scales. for example, the koch curves can be viewed as a mathematical model for coastlines, percolation model can be used to mimic mixture of mental and insulator, self - avoiding walks can serve as a model for linear polymers, and rock fracture mode can stimulate the process of brittle fracture of rock, and so on

    是具有自相似對稱性的幾何圖,可用來模擬自然界中在一定尺度范圍內具有自相似對稱性的不規則結構,如koch曲可用來模擬海岸,滲流模型可模擬金屬絕緣體混,自迴避無規行走模型可模擬,巖裂模型可模擬真實巖體的脆性破裂等。
  4. Abstract : in the field of optical wireless links, concentrators that are designed by the tools of nonimaging optics can be used to collect the light radiation and are more compact and have higher collection efficiencies than imaging concentrators. hemispherical concentrators are studied by ray tracing, then for several normal nonimaging concentrators : hemispherical concentrators, compound parabolic concentrators ( cpc ), dielectric totally internally reflecting concentrators ( dtirc ), simultaneous multiple surfaces concentrators ( sms ) and inhomogeneous media concentrators ( poisson bracket ), the design methods and the performances e. g. the gain and the field of view ( fov ) are compared as well as the application suggestion

    文摘:在無光通信領域,利用非成像光學設計的集中器能夠集光輻射能量,而且相對于成像性集中器具有更緊湊的結構和更高的增益.利用光追跡法對半球集中器的性質進行了分析與研究.對好幾種非成像集中器:半球集中器,復集中器,介質內部全反射集中器,多表面集中器,多相介質集中器,從設計原理、增益和視場進行比較,並分析其應用場
  5. Aim : to analyze the mechanism, thermadynamic theoretical basis, dynamic mechanism and influencing factors of thermally induced phase separation ( tips ) in order to completely grasp the factors affecting the size, distribution and form of pores, so that the adjusted range of pore can be widened and the preparation of porous membrane can be repeated and controlled. methods : considering from the structural characteristics of tissue engineered materials, the methods of preparing porous membrane using tips technique, the hermadynamic theoretical basis, dynamic mechanism and influencing factors were analyzed, the problems and investigative directions in the future were also analyzed. tips technique is a process of phase separation of polymer homogenous solution under quenching, and it is suitable for diameter and structural form of the micropore materials prepared using tips are closely correlated with the kind and dispensing proportion of polymer attrnuant, polymer concentration and polymer molecular mass, etc. conducted, including determination of polymer - solvent system phase diagram, study of form and appearance of porous membrane of different thickness, study of form and appearance of porous membrane prepared with systems of different x, which is the parameter of polymer - solvent interaction

    目的:分析熱致相分離成膜過程的機理、熱力學理論基礎、動力學機制以及影響因素,以便充分掌握影響孔度大小、分佈、態的因素,使孔度調控范圍得以拓寬,使多孔膜的制備能重復可控.方法:從組織工程材料結構特點出發,分析熱致相分離多孔膜的制備方法及該法成膜的熱力學理論基礎、動力學機制以及影響因素.並分析實驗中存在的問題及今後的研究方向.結果:以熱致相分離法可制備多孔膜.熱致相分離法制備多孔膜是高均相溶液在淬冷條件下發生相分離的過程,它適用於上臨界共溶溫度型一稀釋劑二元體系.熱致相分離法成膜的過程,可以認為是旋節機理佔主導地位.熱致相分離法制備的微孔材料,其孔隙率、孔徑大小、結構態與稀釋劑的種類、組成配比、濃度、分子量等因素密切相關.結論:可採用熱致相分離技術制備多孔膜,通過改變不同的成膜條件可獲得一系列不同孔徑尺寸和孔徑分佈的多孔膜材料.對熱致相分離成膜過程中-溶劑體系的相圖測定,不同厚度的多孔膜貌研究,不同x (-溶劑相互作用參數)體系所制備的多孔膜貌等需深人研究
  6. Concretely, 1, base on the viscoelastic mechanism of polymer depend on time, single axes stretching experiments are proceeded to research viscoelastic distortion of high polymer with the dependence on non - linearity and stress. we get each material parameter by dealing with the data of experiments, and contrast several theories of one dimension creep. 2

    根據時間相依的粘彈性機理,對pmma試件進行了單軸拉伸蠕變實驗,著重研究了高粘彈性變的非性及應力水平相關性;在此基礎上,對實驗數據進行擬,得到了各個材料參數,並對幾種現有的一維蠕變理論進行了對比分析; 2
  7. Tem reveals that the complex possessed good dispersibility in the system and the status varied reversibility with the ph value and the size of the complex is within 20 ~ 40nm. the complex was characterized by ft - ir, uv - vis, fluoresence and electrical conductivity methods. paa - ag nanospheres were also synthesized by coordination of polyacrylic acid and silver ( i ) ion and queued in line in lr

    本論文還以低分子量的丙烯酸和硝酸銀為主要原料,通過控制體系的ph值成響應環境ph值變化的丙烯酸銀納米微球和納米柱狀,通過tem觀察尺寸達20 - 40nm ,用ir 、 uv - vis 、熒光、電導率法分析丙烯酸和銀的配位作用、所成配的組成與結構,並將丙烯酸和硝酸銀置於「性反應器」中進行配位成出性排列的paa - ag納米微球。
  8. In the low oxidation states, platinum group metals have a tendency of aggregating to form clusters containing polynuclear metal chain

    在低價狀態下,鉑系金屬可自成一類含有多個金屬原子的性金屬鏈式簇
  9. The simplest polymer which can be envisaged consists of the repetition of a single structural unit many times over to form a liner homopolymer.

    可以想象,最簡單的是由一種結構單元重復多次成一個型均
  10. 4. mixture was made of chiral additive and liquid crystal polymer, which properties were studied. whether the mixture has ferroelectricity has been discussed, which would establish some bases for the research and application of the liquid crystal display materials and nonlinear optical materials in future

    將液晶手性添加劑和液晶共混,並研究了共混的性能,探討了共混型丙烯酸酯類液晶的鐵電性能,為將來的液晶顯示材料及非光學材料的研究及應用奠定了基礎。
  11. High molecule physics and the damage theory of rheologic material with lacuna are used in experiments to study the pmma ' s nonlinear viscoelasticity and changing depends on time and temperature when distorting and destroying. we try to seek a common rule to polymer ' s crazing damage, offer a viable damage model and measure to research polymer ' s minute damage

    本文運用高分子理、含缺陷流變性體的材料破壞等理論,以實驗為基礎,對、破壞以及時間相依和溫度依賴性等非性力學行為進行研究,試圖尋求銀紋損傷的一般規律,為研究的細觀損傷提供了一種可行的損傷模型與方法。
  12. Elastomer is a class of polymers whose deformation displayed by strain - stress curve is totally elastic, i. e., large recoverable strains produced at low stress levels

    彈性體是的一個種類,它的應力應變曲表明其變是完全彈性的,即很低的應力變化就會產生很大的可回復應變。
  13. The morphology of powders is observed, with scanning electron microscopy ( sem ) and transmission electron microscopy ( tem ). x - ray diffraction ( xrd ) pattern is used to analyze the phase of the composite powders. the copper nanoparticles / paraffin thermosensitive composite materials are obtained by the compress moulding

    用掃描電鏡( sem )對復顆粒的表面貌進行觀察,分析顆粒的粒度、團情況等,用透射電鏡( tem )觀察分析了復顆粒中銅的貌、粒徑及復顆粒的精細結構, x射衍射( xrd )分析復顆粒相組成。
  14. The new ideas of this dissertation mainly lie in two points. based on the research on the traditional edge tracing techniques, this dissertation presents an improved method according to lml rule. at the same time, studying the polygonal approximation methods, this dissertation also presents an improved and based on mergence method to image contour, and implements the transform of the contour from image to graphics preferably

    本文的主要創新點在於:在研究傳統輪廓跟蹤技術? ? 「爬蟲」法的基礎上,提出了基於lml規則的改進的輪廓跟蹤方法;同時,研究了多邊法,提出了基於的改進的多邊體圖象輪廓方法,較好地實現了對邊緣輪廓的從圖象到圖的轉換。
  15. As new kinds of non - linear polymers, dendritic polymers have formed a promising kind of functional materials and have been successively used in various applications due to their characteristics including low viscosity, better solubility in conventional solvents, and nano - dimension of single molecule

    摘要樹高度支化,與結構的相比具有較低的粘度及良好的溶解性,而且其單分子尺寸通常在納米尺度,在多方面具有廣闊的應用前景。
  16. It is a1so referred to the nlo liquid crystal polyurthanes and the system of nlo liquid crysta1 polymer briefly. fchrmore, the possibility of combining the nlo polyurthanes and lcpu is also discussed based on azobenzene compound, whch own liquid crysta1line mesogenic unit and nonlinear opical wht togethel a series of polyurethanes with two kinds of diisocyanates were synthsized with azobenzene compounds which we prepared beforehand. the azobenzene compounds were charaterized and confirmed by ftir, " h - nmr, uv - vs, dsc, and elemeni analysis

    本文第一章簡介了液晶的有關基本概念;綜述了氨酯液晶的研究進展,並著重總結了氨酯液晶的成方法和影響氨酯液晶成液晶相的因素;介紹了非性光學氨酯液晶,對非性光學液晶體系也作了扼要的闡述,指出利用含有既是液晶基元又是非性光學單元的偶氮基團的化氨酯液晶,實現兩者結的可能性。
  17. The synthesis and application of non - linear copolymers contained polylactic acid were reviewed. the prospect of this study was previewed in this paper

    摘要本文對非含活性側基乳酸接枝共成、性能以及應用進行了綜述,並對該研究的前景進行了展望。
  18. It is one of mechanisms of plastic distortion, at the same time it is also the beginning of microcosmic damage and rupture before the macroscopical destroying of materials, it representatives a mid - state between materials " macroscopical rupture and bend, it is considered a premonitory that the rupture of polymer material, which get common attention by scholar inside and outside nation. therefore, the research for engineering polymer in mechanic action of non - linearity destroy such as distortion, destroy and depe nd on time and temperature is valuable in theoretic research and actual application, which offer the important theoretic gist for changing complex material ' s capability and actualize polymer ' s perfect application with high quality of capability in engineering

    同時,銀紋化和銀紋損傷是高特有的一種現象,細觀層次的銀紋引發、生長和斷裂在損傷斷裂的整個過程中起著承前啟后的作用,它是溝通宏、微觀變機制的橋梁,是材料塑性變的機制之一,同時又是材料宏觀破壞以前微觀上損傷、破壞的開始,它代表材料微觀斷裂和屈服之間的一個中間狀態,可以看作是材料宏觀斷裂的先兆,受到國內外學者們的廣泛關注。因此,開展工程、破壞以及時間相依和溫度依賴性等非性力學行為研究,探討破壞過程中的非性力學行為,為及其復材料的改性、實現的工程化與高性能化提供重要的理論依據,具有重要的理論研究意義和實際應用價值。
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