chiral 中文意思是什麼

chiral 解釋
手性的
  1. Synthesis of new type chiral - 2 - acetylamino - 3 - aryl acrylic acid compounds

    芳基丙烯酸類化合物的合成
  2. Study on n - maleoy - l - alanine and methyl methacrylate chiral copolymer

    丙氨酸與甲基丙烯酸甲酯手性共聚物的研究
  3. The advance of chiral phosphate - ester ( phosphonate - ester ) [ phosphoramides ( phosphonyl - amide ) ] in asymmetric alkylation reaction, aldol reaction, hydrogenation reaction, cyanosilylation reaction was reviewed with 48 references

    討論了手性膦（磷）酰胺及膦（磷）酯酯催化劑在不對稱烷基化、不對稱縮合、不對稱氫化、不對稱氰矽化等反應中應用的最新研究進展。參考文獻48篇。
  4. Applications of palladium - chiral phosphine - catalysts in asymmetric catalysis of alkenes

    手性膦配體催化劑在烯烴不對稱催化反應中的應用
  5. Asymmetric autocatalysis occurs when a chiral product operates as an asymmetric catalyst for its own production

    摘要不對稱自催化是指由不對稱反應生成的手性產物自身作為催化劑的反應過程。
  6. Asymmetric autocatalysis intrinsically has the following advantages : chiral amplification of production, high reaction efficiency, easy purification of the products, consecutive reaction, which is a new aspect of chiral synthesis

    不對稱自催化具有手性自動放大、反應活性較高、產物處理較易、反應體系連續等特點，是不對稱化學的一個新的領域。
  7. Calculate the masses of octet baryons from chiral perturbation theory

    利用手征微擾理論計算強子八重態的質量
  8. The results show that the chiral symmetry is restored partially when the strange matter density increases and 2 plays a very important role in the strange matter which may approach the constituents of the neutron stars. in additions, we can find that the strange matter density where the - condensate emerges is led to the ratio of the nucleon number to baryon number. and the occurrence of - condensate is only in certain density and gradually increases for higher density, so we guess that - field may be necessary to carefully consider for studying the neutron stars

    （ 3 ） -凝聚出現時所對應的奇異物質密度值與核子在奇異物質中的比例有關。另外，雖然本文對夸克凝聚的討論是在低密度的奇異物質中進行的，但是-凝聚的出現卻需達到一定的密度值並且隨密度的增大而遞增，所以我們推測場可能對于仔細研究中子星是一必要因素。
  9. There has been many papers to discuss the in - medium quark and gluon condensates in nuclear matter which use the models with su ( 2 ) l su ( 2 ) r sym - metry. now, we make use of the chiral model su ( 3 ) l su ( 3 ) n including the baryon octet to discuss the quark condensate < qq > in strange matter, where q is an up or down quark field. on the one hand, from the experimetal data, it is found that < qq > vac = - ( 225 25mev ) 3, on the other hand, with the hellmann - feynman theorem, quark condensate can be evaluated on the hadronic level. in this paper, we will investigate the quark condensate in strange matter with the chiral symmetry su ( 3 ) l x su ( 3 ) rspontaneous breaking lagrangian to obtain the variation of the quark condensate in the strange matter when the baryon number change. it can be applied to understand the neutron stars when the neutron star are considered to be constructed by the strange matter. because nertron stars are homogeneous and at very low temperature, we will use the mean - field approximation and zero temperature throughout this paper

    鑒于已有大量文獻討論了核物質中的夸克凝聚，本文將討論在奇異物質中的夸克凝聚。而在介質中的夸克凝聚的基本公式可由hellmann - feynman理論導出，所以運用手征對稱自發破缺拉氏量以及平均場近似，我們就可以討論在奇異物質中的夸克凝聚，由所計算的結果表明： （ 1 ）奇異物質中的夸克凝聚隨奇異物質密度的增大而單調減小。 （ 2 ） -凝聚的出現對衰減率有影響。
  10. According to goldstone theorem, the goldstone bosons with zero mass will emerge as the chiral symmetry is spontaneously broken

    由goldstone理論可知，當手征自發破缺時會生成零質量的goldstone玻色子。
  11. Such a carbon is designated as a chiral carbon.

    這樣的碳原子稱為手性碳。
  12. Chiral quaternary ammonium salts were synthesized from cinchonine in cinchona alkaloids using chloromethylated polystyrene - polyethylene glycol, diethylene glycol, triethylene glycol and glycol as polymer - supported phase transfer catalysts, finsl products were characterized by ftir, elemental analysis, scanning electron microscopy, x - ray photoelectron spectroscopy ( xps )

    摘要以金雞納生物堿中的辛可寧為原料，氯甲基化聚苯乙烯聚乙二醇、一縮二乙二醇、二縮三乙二醇、乙二醇等為載體合成了幾種聚合物負載的手性季銨鹽，並對它們的結構用紅外光譜、元素分析、掃描電鏡和x射線光電子能譜等測試手段進行了表徵。
  13. We commute the jacobian phase of the integral measure under the chiral rotation, we also discuss the fermion determent of the non - commutative chiral qcd2 model and provide the effective action of the non - commutative chiral qcd2 model

    我們用fujikawa路徑積分的方法研究了二維非對易空間的手征qcd _ 2模型作用量費米子部分在手征轉動下所產生的手征反常。
  14. This review describes the development of chiral diamines in recent years

    綜述了手性二胺化學近幾年的研究進展。
  15. Studies on molecular recognition of chiral asymmetry salen ni to guests imidazole and diamine derivatives

    對咪唑類和二胺類客體的分子識別研究
  16. Study on the properties of chiral dendrimers with fluoresce spectrophotomety

    手性樹狀化合物的配位性質研究
  17. In quantum chromodynamics ( qcd ), vacuum is not trivial, that is, vacuum carry quantum numbers. such a behavior is embodied by non - perturbative con - densates of quarks and gluons. since hadrons are excitations with respect to the vacuum, hadronic properties are ultimately related to properties of the vacuum. based on the vacuum structure, some hadron properties have been described well. in the low energy region, qcd has two very important proper - ties : chiral symmetry spontaneous breaking and confinement, which are closely related to the vacuum characteristics of qcd. much experiments and theoretical studies have shown that chiral symmetry spontaneous breaking is very important to understand the low - energy feature of the strongly interacting physics, and the quark condensates give an expression to chiral symmetry spontaneous breaking. according to goldstone ' s theorem, the goldstone bosons with zero mass will emerge as the chiral symmetry is spontaneously broken. there are two ways : inear and non - linear methods to carry out this constraint. in our paper, we will use the non - linear method

    大量實驗和理論研究表明，手征對稱自發破缺對于理解低能強相互作用十分重要，而夸克凝聚又是導致手征對稱自發破缺的因素。按goldstone理論，伴隨手征對稱自發破缺應該會有零質量的goldstonebosons產生。而對于這一條件的實現有線性和非線性兩種方法本文將用非線性的方法將手征對稱自發破缺應用於su （ 3 ）模型即重子八重態，得出描述其強相互作用的手征對稱自發破缺lagrange密度。
  18. Synthesis of optically active chiral cyclic guanidine derivative

    手性環胍衍生物的合成
  19. Synthesis and molecular recognition of chiral salon zn with imidazoles and pyridines

    吡啶類客體的分子識別研究
  20. Studies on molecular recognition of chiral salen metal complexes with imidazoles

    金屬配合物與咪唑類客體分子識別的研究
分享友人
分享到 Line

分享到臉書