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anti
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     Preparation of Anti Human Tumor Necrosis Factor α Single-Chain Variable Fragment Antibody by Phage Surface Display Technique and Its Humanization
     利用噬菌体表面展示技术制备人肿瘤坏死因子α单链体及其人源化改造
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     Clinical Study of Zhongyaofuzhengheji on the Treatment of Non-Small Cell Lung Cancer and Experimental Study on the Mechaanism of Anti Metastasis
     中药扶正合剂治疗非小细胞肺癌的临床研究及转移机理的实验研究
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     Establishment of Cynomolgus Macaque Renal Allotransplantation Model and Its Application for Anti Graft Rejection Research
     食蟹猴同种异体肾移植模型的建立及其排斥研究
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     The Anti Invasion and Migration Effect of As_2O_3 on MHCC97H and the Preparation of As_2O_3-PLGA Bio-degeneration Microspheres
     As_2O_3肝癌侵袭转移作用及As_2O_3药物微球制备的实验研究
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     Experimental Study of ZiHuaMoLi on Anti Small Rat's BPH and Its Effect of the Ki67、CD34 Antigen Presentation
     紫花茉莉小鼠前列腺增生的实验研究及其对Ki67、CD34表达的影响
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     The enhanced intensity of anti second-order scattering is proportional to the concentration of human serum albumin in the range of 0.1~1.1 mg/L, 0.5~3.5 mg/L and 0.5~11 mg/L,and the detection limit is 0.07 mg/L,0.17 mg/L and 0.24 mg/L.
     在 0 .1~ 1.1mg/ L、0 .5~ 3.5 m g/ L和 0 .5~ 11mg/ L浓度范围内 ,二级散射的增强与人血清白蛋白浓度呈线性关系 ,检出限分别为 0 .0 7m g/ L、0 .17m g/ L和 0 .2 4 m g/ L .
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     STUDY ON THE PINNING EFFECT OF ANTI FERROMAGNETIC NiO LAYER IN NiO/Co/Cu/Co SPIN VALVE
     NiO/Co/Cu/Co自旋阀中铁磁NiO层钉扎作用的研究
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     The optimum operation parameters are filter velocity (6 ̄8)m/h,zeolite size(0.5 ̄2.5)mm, anti rinse intensity 13 10 L/m 2·s.
     其最佳工艺条件为滤料粒径0.5mm~2.5mm,滤速6m/h~8m/h,冲洗强度13.10L/m2·s。
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     We obtain a sufficient and necessary condition of the direct product μ_1×μ_2 is an anti Fuzzy subgroups of G×G.
     此外,还给出了直积μ_1×μ_2是G×G上的Fuzzy子群的一个充要条件.
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     High spin states of 90 Mo have been populated by the reaction 59 Co( 35 Cl,2p2n) 90 Mo at beam energy of 116 MeV. A detector array consisting of 10 anti Compton HPGe detectors was used for γ γ coincidence measurements.
     利用束流能量为 116MeV的59Co(35Cl,2p2n) 90 Mo应布居90 Mo的高自旋态 . 用 10台康普顿HPGe探测器组成的探测阵列进行γ γ符合测量 .
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     Discussion on Economizer Anti Wearing Modification of #3 Boiler in 150 Power Plant
     150发电厂~#3炉省煤器磨改造的探讨
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     PREPARATION OF Al 2O 3 ULTRAFINE POWDER BY LIQUID PHASE PRECIPITATION AND ANTI AGGLOMERATION
     液相共沉淀法制Al_2O_3超细粉过程及团聚措施
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     THE DEVELOPMENT OF T.FL—2 TYPE VEHICLE ANTI RUNNING DEVICES
     T .FL— 2型车辆溜器的研制
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     THE ANALYSIS OF Zn, Cd, Pb, Cu IN MARINE ORGANISMS BY ANTI ADSORPTION PHYSICAL COATING MERCURY ELECTRODE INVERSE POLAROGRAPHY
     吸附物理涂汞电极示差反向极谱法测定海生物中痕量Zn、Cd、Pb及Cu
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     The mechanism, application and effect of anti[CD*2]caking agent for the compound fertilizer with the nitrogen content of 25%~28% are described.
     介绍适用于含氮25%~28%高氮复混肥结块剂的结块机理、使用情况及结块效果。
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  “anti”译为未确定词的双语例句
     Expression of Survivin in Non-hodgkin's Lymphoma and Effects of Anti Survivin Oligonucleotides on Growth and Apoptosis of Lymphoma Cells
     Survivin在非霍奇金淋巴瘤中的表达及其反义寡核苷酸对淋巴瘤细胞增殖与凋亡的影响
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     The Expression of HMGA2 in Breast Cancer and the Influence of Anti Sense Oligodeoxy Nucleotide with Breast Cancer Cells Proliferation
     HMGA2在乳腺癌的表达及其反义寡核苷酸对乳腺癌细胞增殖的影响
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     The Application of S31—1 Polyurethane Electric Insulation Coating to the Anti—Moisture of Oceanographic Instruments
     S31—1聚氨酯绝缘漆在海洋仪器防潮中的应用
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     STUDIES ON THE ANTI—CANCER AGENTS OF SCHIFF BASE METAL COMPLEXES——(Ⅰ)The Synthesis of Bis—[N-(2—hydroxy ethyl)Salicylaldimino]Cobalt(Ⅰ)and Nickel(Ⅱ)
     希佛碱—金属络合物抗癌剂的研究 (Ⅰ)、双-N(2-羟基乙基)水杨醛亚胺合钴(Ⅱ)、镍(Ⅱ)的合成
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     The Enhancement of Anti_Interference Ability of Television Tracking system with Adaptive Level Detection Method
     用自适应电平检测法提高电视跟踪系统抗干扰能力
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  anti
It is said to be strongly visible if there exists an orbit-preserving anti-holomorphic diffeomorphism σ such that σ|S = id.
      
Of special interest are the Mellin operators of differentiation and integration, more correctly of anti-differentiation, enabling one to establish the fundamental theorem of the differential and integral calculus in the Mellin frame.
      
This has brought the total of licensed anti-HIV drugs to nineteen.
      
(iii) Yet other compounds, acting by novel mechanisms, have recently been identified as anti-HIV agents that seem worthy of further (pre)clinical development: cell receptor CD4 downmodulators (i.e.
      
ANTIPYRETIC, ANTINOCICEPTIVE AND ANTI-INFLAMMATORY ACTIVITIES OF CERTAIN γ-OXOBUTANOIC ACID DERIVATIVES
      
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A new approximation method is proposed in this article for the discussion of molecular structures,and this new method includes the two well-known theories,molecular orbital theory and electron-pair bond theory as two special cases.Let a molecule have n bonds and let the ith bond be described by the anti-symmetrical two-electron bond function ψ_i(v_(2i-1),v_(2i)).(If there exist one- electron,three-electron or many-electron bonds,they can be similarly described by the corresponding one-electron,three-electron...

A new approximation method is proposed in this article for the discussion of molecular structures,and this new method includes the two well-known theories,molecular orbital theory and electron-pair bond theory as two special cases.Let a molecule have n bonds and let the ith bond be described by the anti-symmetrical two-electron bond function ψ_i(v_(2i-1),v_(2i)).(If there exist one- electron,three-electron or many-electron bonds,they can be similarly described by the corresponding one-electron,three-electron or many-electron bond func- tions.) Then the stationary state of the molecule is represented by the follow- ing wave function Ψ, where the summation is over all permutations of 1,2,……,2n except those within the interior of the functions,since each ψ_i is already anti-symmetrical.Obviously (2~n/((2n)/!))~(1/2) is the normalization factor. By quantum mechanics the energy of the molecule equals (1) here H_i,T_(ij) and S_(11)' are respectively the following three kinds of operators, (2) (3) (4) The third term of equation (1) is the exchange integral of electrons 1 and 1', while (1,2') is that of electrons 1 and 2'.According to the definition of bond functions,ψ_i may be written as (5) Substituting equation (5) into equation (1) and carrying out the integration over spin coordinates,we obtain (6) It can be easily seen from equation (6) that the combining energy of a mole- cule consists of two parts,one being the binding energy of the bonds represent- ed by the first term of equation (6),and the other being the interaction energy of the bonds denoted by the second term of that equation. If we choose certain functions φ_i~('s) involving several parameters and substi- tute them into equation (6),we may determine the values of those parameters by means of the variation principle. For the discussion of bond interaction energies,we develop a new method for the evaluation of certain types of three-center and four-center integrals.The interaction energy of a unit positive charge and an electron cloud of cylindrical- symmetry distribution may be written as (7) where (8) and R_0~2=a~2+b~2+c~2 The interaction energy of two electron clouds both of cylindrical-symmetry distributions with respect to their own respective axes is evaluated to be (9) (10) where is to sum over j from zero to the lesser value of n-2i and m, is to sum over i from zero to the integral one of n/2 and (n-1)/2,and is to sum over all cases satisfying the relation =m-j,while b_(n,n-2i) represents the coefficient of x~(n-2i) in the n th Legendre polynomial.

本文在分子结构理论方面,作了下列两点贡献:首先建议了用双电子或多电子键函数作为近似基础,来计算分子的近似能量和近似电子云分布。这样计算得来的结果,一定会比用分子轨道理论或电子配对理论好,因为它更真实的反映了分子的化学性质,同时它也包括了后两者,而以它们为特例。我们得到了分子结合能的表示式,用表示式证明了分子结合能由两部分组成:一部分是键的结合能,另一部分是键与键间的作用能。其次是建议了一种新方法,把在计算化学键相互间的作用能中遇到的一些三中心和四中心积分,还原为容易计算的二中心积分。这方法比以往所用的好,因为它计算比较简单,同时限制性也小。

Although James and Coolidge (1933) solved the molecular hydrogen problem in almost complete agreement with experiment by using a 13-term 2-electron eigenfunction, his method can hardly be applied to more complex molecules. For this and other reasons (Coulson, 1938), it is still desirable to obtain a good one-electron eigenfunction, i.e., molecular orbital, for the hydrogen molecule. The best molecular orbital treatment available in the literature was given by Coulson (1938), who used a trial eigenfunction in...

Although James and Coolidge (1933) solved the molecular hydrogen problem in almost complete agreement with experiment by using a 13-term 2-electron eigenfunction, his method can hardly be applied to more complex molecules. For this and other reasons (Coulson, 1938), it is still desirable to obtain a good one-electron eigenfunction, i.e., molecular orbital, for the hydrogen molecule. The best molecular orbital treatment available in the literature was given by Coulson (1938), who used a trial eigenfunction in elliptical coordinates involving 5 parameters and obtained 3.603 eV for the binding energy of H_2, which is to be compared with the ex- perimental value of 4.72 eV. In the present investigation we have proposed a new type of trial eigenfunction for the molecular orbital: (1) with p = centers a, b, g, c, d,…… i = electron 1 or 2 (2) where the p's are centers along the bond axis a-b (Fig. 1). In this simple problem both the Fock and Hartree methods yield the same result. The molecular orbital ψ must satisfy the following integral equation: (3) where ε is the energy of the molecular orbital, F is the Fock operator which is equal to H+G(1), while H is the one-electron Hamiltonian operator: H = -1/2▽~2-1/r_a-1/r_b (4) and G(1) is the interaction potential (5) Substituting (1) into (3), we obtain the linear combination coefficients c_p, which must satisfy the following secular equation: (6) where is the solution of the secular determinant and The F_(pq)'s are not at first known, but depend upon the c_p's. A method of successive approximation must therefore be adopted. A set of c_p values may be assumed, the F_(pq)'s calculated, the secular determinant (7) solved, and a new set of c_p values found. This process is repeated until a "self-consistent" set of c_p values is obtained. The above procedure was first proposed by Roothaan (1951), not for H_2 but for more complex molecules. It was called by him the "LCAO SCF (linear combination of atomic orbitals self-consistent field) method". The new feature of the present investigation is that we not only use LCAO but also LCNAO (linear combination of non-atomic orbitals, such as x_g, x_c, x_d, …). The order of secular determinant (7) may be reduced to half if we replace the eigen- functions x_a, x_b .... by their symmetrical and anti-symmetrical linear combinations x_a + x_b and x_a-x_b. Numerical calculations have been carried out both for the three- and the two-centered molecular orbitals. The three-centered molecular orbital is (10) (11) where S_(ab) and S(ag) are the overlapping integrals between x_a and x_b, and between x_a and x_g respectively. The parameters a and g have 'been obtained to give minimum energy by the method described above. They are a=l.190, g=0.22, and the binding energy is 3.598 eV, which is almost as good as that obtained by Coulson (3.603 eV) using a trial function of 5 parameters. The two-centered molecular orbital is (12) (13) which gives a maximum binding energy of 3.630 eV for a=1.190 and R~(ac)=R(bd)=0.105 (Fig. 1). This result is 'better than Coulson's. If we allow different values for the ex-ponent α in x_a and x_g in equation (11), or if we use a four-centered molecular orbital, such as ψ=a(x_a + x_b) + b(x_c + x_d) with four parameters, namely α_a=α_b, α_c=α_d, R_(ac)=R_(bd) and the ratio b/a, it is possible to obtain a still better result. Extension of the present method to the treatment of more complex molecules is now under investigation.

(1)討論了用自洽勢場多中心分子軌道法來處理H_2分子的一般方法。 (2)用僅含兩個參變數三中心分子軌道進行了具體計算,求得H_2分子的結合能為3.598eV,接近於Coulson用五個參變數的雙中心分子軌道所得的結果(3.603eV)。 (3)用不在原子核上的兩中心的分子軌道求得H_2分子的結合能為3.630 eV,此上述結果為好。並指出如用不同的α值和四個或四個以上中心的分子軌道,很有可能得到更好的結果。以上處理方法有可能推廣到比H_2更為複雜的分子。

By means of Friedel-Crafts reaction, the following compounds were prepared from 4-methyl- imidazolone-2 and four different ω-carbethoxy acyl halides: 4-methyl-5-(δ-carbethoxy-γ-methyl- butyryl)-imidazolone-2, 4-methyl-5-(δ-carbethoxy-γ, γ-dimethylbutyryl)-imidazolone-2, 4-methyl- 5-(ω-carbethoxy-n-nonanoyl)-imidflzolone-2, and 4-methyl-5-(ω-carbethoxy-n-heptadecanoyl)- imidazolone-2. With PtO_2 as catalyst, they were readily reduced to the four corresponding imidazolidone compounds. These compounds were hydrolyzed...

By means of Friedel-Crafts reaction, the following compounds were prepared from 4-methyl- imidazolone-2 and four different ω-carbethoxy acyl halides: 4-methyl-5-(δ-carbethoxy-γ-methyl- butyryl)-imidazolone-2, 4-methyl-5-(δ-carbethoxy-γ, γ-dimethylbutyryl)-imidazolone-2, 4-methyl- 5-(ω-carbethoxy-n-nonanoyl)-imidflzolone-2, and 4-methyl-5-(ω-carbethoxy-n-heptadecanoyl)- imidazolone-2. With PtO_2 as catalyst, they were readily reduced to the four corresponding imidazolidone compounds. These compounds were hydrolyzed with 1 N NaOH and then followed by acidification to give the following acids: 4-methyl-5-(δ-carboxy-y-methylbutyl)- imidazolidone-2, 4-methyl-5-(δ-carboxy-γ, γ-dimethylbutyl)-imidazolidone-2, 4-methyl-5-(ω-car-boxy-n-nonanyl)- imidazolidone-2, and 4-methyl-5-(ω-carboxy-n-heptadecanyl)-imidazolidone-2. Microbiological tests indicated that the first three acids are good anti-biotins towards lactobacillus casei and saccharomyces cerevisiae strain No. 139. Due to its extreme insolubility in water, the last compound has not yet been tested for its microbiological activity.

(1)利用Friedel-Crafts反應,由4-甲基-2-氧代-二氫化咪唑及四個不同的醯氯羧酸酯,得到下列四個化合物:4-甲基-5-(δ-乙氧羰基-γ-甲基丁醯)-2-氧代-二氫化咪唑,4-甲基-5-(δ-乙氧羰基-γ,γ-二甲基丁醯)-2-氧代-二氫化咪唑,4-甲基-5-(ω-乙氧羰基-正壬醯)-2-氧代-二氫化咪唑及4-甲基-5-(ω-乙氧羰基-正十七醯)-2-氧代-二氫化咪唑。 (2)用Cr_(2)O_3精製過的乙酸爲溶劑,PtO_2爲觸媒,這四個4-甲基-2-氧代-二氫化咪唑的衍生物,很順利的吸收相當於3分子的氫,還原為相對應的4-甲基-2-氧代-四氫化咪唑的衍生物,水解後得到下列四個酸:4-甲基-5-(δ-羧基-γ-甲基丁基)-2-氧代-四氫化咪唑,4-甲基-5-(δ-羧基-γ,γ-二甲基丁基)-2-氧代-四氫化咪唑,4-甲基-5-(ω-羧基-正壬基)-2-氧代-四氫化咪唑及4-甲基-5-(ω-羧基-正十七基)-2-氧代-四氫化咪唑。前三者已作過初步的微生物效應試驗,對於lactobacillus casei及saccharomyces cerevisiae都有顯著的反促生素效應。第四個化合物因為...

(1)利用Friedel-Crafts反應,由4-甲基-2-氧代-二氫化咪唑及四個不同的醯氯羧酸酯,得到下列四個化合物:4-甲基-5-(δ-乙氧羰基-γ-甲基丁醯)-2-氧代-二氫化咪唑,4-甲基-5-(δ-乙氧羰基-γ,γ-二甲基丁醯)-2-氧代-二氫化咪唑,4-甲基-5-(ω-乙氧羰基-正壬醯)-2-氧代-二氫化咪唑及4-甲基-5-(ω-乙氧羰基-正十七醯)-2-氧代-二氫化咪唑。 (2)用Cr_(2)O_3精製過的乙酸爲溶劑,PtO_2爲觸媒,這四個4-甲基-2-氧代-二氫化咪唑的衍生物,很順利的吸收相當於3分子的氫,還原為相對應的4-甲基-2-氧代-四氫化咪唑的衍生物,水解後得到下列四個酸:4-甲基-5-(δ-羧基-γ-甲基丁基)-2-氧代-四氫化咪唑,4-甲基-5-(δ-羧基-γ,γ-二甲基丁基)-2-氧代-四氫化咪唑,4-甲基-5-(ω-羧基-正壬基)-2-氧代-四氫化咪唑及4-甲基-5-(ω-羧基-正十七基)-2-氧代-四氫化咪唑。前三者已作過初步的微生物效應試驗,對於lactobacillus casei及saccharomyces cerevisiae都有顯著的反促生素效應。第四個化合物因為在水中溶度太低,故尚未能作它的微生物效應試驗。

 
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