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x-射线     
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  x-ray
     The Effect of X-ray on Immune Response of the Peritoneal Macrophage of Mice
     X-射线对小鼠腹腔巨噬细胞免疫功能的影响
短句来源
     X-RAY ANALYSIS OF AGING PROCESS IN 18 Ni MARAGING STEELS
     18Ni马氏体时效钢时效过程的X-射线分析
短句来源
     X-ray Phase Analysis tor Iron Oxide Dehydrogenation Catalyst and Examination of the Active phase
     氧化铁系乙苯脱氧催化剂的X-射线相分析及活性相之探讨
短句来源
     X-ray Fluorimetric Analysis of CaO、SiO_2、MnO、TFe、Al_2O_3、MgO、TiO_2 in Slag
     炉渣中CaO、SiO_2、MnO、TFe、Al_2O_3、MgO、TiO_2的X-射线萤光分析
短句来源
     X-ray Photoelectron Spectroscopic Analysis of Cadmium Sulfide-Cuprous Sulfide Film Cell
     硫化镉-硫化亚铜薄膜电池的x-射线光电子能谱分析
短句来源
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  x ray
     A novel complex {[Mn(4,4′-bipy)(4,4′-azpy) 2(NCS) 2].H 2O} n (where 4,4′-bipy = 4,4′-bipyridine, 4,4′-azpy = 4,4′-azobispyridine) is synthesized and characterized by means of X ray crystal structure, elemental analyses, IR, UV, thermal properties and magnetic susceptibility.
     一个新颖配合物 { [Mn(4,4′ -bipy) (4,4′ -azpy) 2 (NCS) 2 ].H2 O} n 已经被合成 ,以及由元素分析和X -射线晶体结构所表征 ,并且进行了红外 ,紫外 ,差热分析和磁性研究 .
短句来源
     The novel complex {(n-Bu)_2Sn[(η~5-C_5H_5)Fe(η~5-C_5H_4)COO]_2}_2 has been synthesized and characterized by elemental analysis, IR and NMR(1H, 13C and 119Sn) spectroscopy. The crystal structure of the title complex has been determined by single crystal X ray diffraction techniques.
     合成了新型配合物{(n-Bu)_2Sn[(η~5-C_5H_5)Fe(η~5-C_5H_4)COO]_2}_2,用元素分析、红外光谱和核磁共振谱(1H、13C、119Sn)进行了表征,并用X-射线单晶衍射分析法测定其晶体结构。
短句来源
     Preparation and X Ray Diffraction Analysis of C 60 Br 24 Single Crystal Powders
     C_(60)Br_(24)粉末单晶的制备及X-射线衍射分析
短句来源
     A sesquiterpene was isolated from the seed oil of Celastrus orbiculatus and identified as 1 α ,6 β diacetoxy 9 β benzoyloxy β dihydroagarofuran by 1H NMR, 13 C NMR and X ray diffraction.
     从南蛇藤种油中分离得到一个倍半萜 ,经 1H NMR、13 C NMR及晶体 X-射线衍射确证其化学结构为 1α,6 β-二乙酰氧基 - 9β-苯甲酰氧基 - β-二氢沉香呋喃 (1)。
短句来源
     The crystal and molecular structures of methylene and ethylene bis(dimethy ldithiocarbamate), (Me 2NCS 2) 2CH 2(Ⅰ) and Me 2NCS 2CH 2,CH 2S 2CNMe 2 (Ⅱ) have been determined by X ray crystallography.
     通过 X-射线晶体衍射 ,确定了 ( Me2 NCS2 ) 2 CH2 (化合物 I)和Me2 NCS2 CH2 CH2 S2 CNMe2 (化合物 )的晶体和分子结构。
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  x-rays
     It is shown that the SrAl 2O 4 monolithic crystal structure was observed i n the SrAl 2O 4:Eu 2+ ,Dy 3+ luminescence ceramics, according to t he resulfs of X-rays diffraction. The lattice contents are: a=8.4424, b=8.822 , c=5.1607.
     X -射线衍射分析表明SrAl2 O4:Eu2 + ,Dy3 + 发光陶瓷的晶体结构为SrAl2 O4单斜晶系晶体结构 ,晶格常数为a=8 442 4 ,b=8 82 2 ,c=5 1 60 7 。
短句来源
     The effect of EDTA on the air-oxidation of Mn (OH)2 has been investigated by X-rays diffraction (XRD).
     用X -射线衍射法(XRD)研究了EDTA 络合剂对Mn(OH)2 空气氧化反应的影响.
短句来源
     X-rays double inspection technology
     X-射线双检测工艺
短句来源
     A novel composite electrode which have functions of synthesizing H2O2 and photocatalysis was reported and characterized by X-rays and SEM.
     文章介绍了具有合成H2O2 和光催化性能的双功能新型复合电极,并用X-射线衍射,SEM等方法进行了表征.
短句来源
     4. The modes of the action of UV (Ultra Violet rays) and X-rays were similar, but the protoplast was more sensitive to UV irradiation.
     4.UV和X-射线的作用机制相似,原生质体对UV射线更为敏感。
短句来源
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  x-ray irradiation
     The male mice of Group 1 and 2 made their female partners pregnant respectively 10 and 15 days after the X-ray irradiation, but not those of Group 3 and 4 in our 3-month observation, and those of Group 5 and 6 died respectively 2 and 5 days after the X-ray irradiation.
     结果:①X-射线局部照射:实验组1、2的雄鼠分别于X-射线照射后10、15d使雌鼠受孕; 实验组3、4的雄鼠,经观察3个月也未能使雌鼠受孕;
短句来源
     Results pcEgr-hp53 expression vector has been constructed correctly. pcEgr-hp53 stable transfer combined with X-ray irradiation could significantly inhibit the proliferation and induce apoptosis of SKOV3 cells and the effect were significantly increased with doses enhancement.
     结果经限制性内切酶酶切鉴定,辐射诱导表达载体pcEgr-hp53构建正确,稳定转染pcEgr-hp53联合X-射线照射可明显抑制肿瘤细胞的增殖,并诱导肿瘤细胞凋亡。
短句来源
     The treatment effect on donor protoplast of UV and X-ray irradiation was not stable, so more attention should be paid to the elimination of the donor genotypes in the selection of the somatic hybrid.
     UV和X-射线辐射处理供体原生质体都存在处理效果不稳定的情况,因此在融合杂种筛选中应着重注意淘汰供体基因型;
短句来源
     Results After X-ray irradiation the cells showed typical characteristics of PCD. Both the cells increased p53 mRNA transcriptions.
     结果 两种细胞经 X-射线照射后均表现出较为典型的细胞凋亡改变 ,两种细胞 p5 3m RNA转录均有所增强。
短句来源
     pEgr-hPTEN stable transfer combined with X-ray irradiation could significantly induce G1 arrest. The expression of P27kip1 proteins increased in SHG-44-sPTEN stable transfected cells.
     稳定转染联合X-射线照射细胞周期发生明显改变,细胞从G1期到S期发生阻滞,细胞周期相关蛋白P27表达上调。
短句来源

 

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  x-ray
The Calderón reproducing formula, windowed X-ray transforms, and radon transforms in LP-spaces
      
The case k=1, μ∈? corresponds to the exponential X-ray transform arising in single photon emission tomography.
      
Here, we report using the estrogen receptor that the location of drugs in x-ray crystal structures of the receptors matches closely their predicted spatial locations in the DNA.
      
X-ray diffraction and selected area electron diffraction analysis showed that Pt-Sn-B/CNTs had an amorphous alloy structure that can improve catalytic performance.
      
Chemical and physical reactions during the low temperature aqueous chemical synthesis of nanostructured Bi2Te3 powders were investigated in-situ by pH measurement, color observation of the solution and X-ray diffraction analysis of the powders.
      
更多          
  x ray
The X ray diffraction pattern of a Gulyaev-Bleustein surface acoustic wave (SAW) under grazing angles of incidence in noncoplanar symmetric Laue geometry has been considered.
      
Thin film methods and X ray energy dispersive technique were applied to analyze sulfate-containing particles in Beijing in order to examine their features and sources.
      
X ray photoemission spectra measurements were carried out to elucidate the valence band picture and bonding characters of the two dimensional semiconductor red bronze K0.33MoO3.
      
The as-deposited TiO2 films have been characterized with Field emission scanning electron microscopy (FE-SEM), X ray diffraction (XRD) and atomic force microscopy (AFM).
      
It was characterized by thermogravimetry and differential thermal analysis (TG/DTA), X ray diffractometer (XRD), Element Analysis (EA) and Scanning electron microscope (SEM).
      
更多          
  x-rays
We investigated the effect of X-rays with a dose of a few kilogrey on the characteristics of silicon planarp+-n-detectors.
      
A subnanosecond pulsed source of electrons and X-rays
      
Measuring the local density of light gases by characteristic X-rays
      
A Gas-Discharge Source of Quasi-monochromatic Ultrasoft X-rays
      
The results of a study of radiation characteristics of a high-current pinch discharge of the plasma-focus type in the region of soft and ultrasoft X-rays are presented.
      
更多          
  x-ray irradiation
Detection of phosphorylated histone H2AX in differentiated cells after X-ray irradiation
      
Effect of X-ray Irradiation on the Reactivity of Red Phosphorus in the Synthesis of Organophosphorus Compounds
      
Structure of Free Radicals Formed under X-ray Irradiation of Organic Polymeric Acids
      
The structure of free radicals formed under X-ray irradiation of polyacrylic and polymetharcylic acids and poly-3-vinyltetrazole was studied by ESR spectroscopy.
      
Influence of X-ray irradiation on the optical properties of chromium-doped KliSO4 crystals
      
更多          
  其他


A detailed procedure, which is essentially a modification of Baker and Briggs' method, is described here for the synthesis of α-phenyl-β-(3,5-diiodo-4-hydroxy-phenyl)-propionic acid (Priodax). Two derivatives of Priodax, one ,being new, were also prepared. The Priodax obtained exhibits low toxicity and produces good cholecystographic shadows. An attempt was made to employ hydriodic acid and red phosphorus for the simultaneous reduction and demethylation of p-methoxy-a-phenylcinnamic acid without success. How-...

A detailed procedure, which is essentially a modification of Baker and Briggs' method, is described here for the synthesis of α-phenyl-β-(3,5-diiodo-4-hydroxy-phenyl)-propionic acid (Priodax). Two derivatives of Priodax, one ,being new, were also prepared. The Priodax obtained exhibits low toxicity and produces good cholecystographic shadows. An attempt was made to employ hydriodic acid and red phosphorus for the simultaneous reduction and demethylation of p-methoxy-a-phenylcinnamic acid without success. How- ever, this substituted cinnamic acid can be reduced in good yield by means of sodium amalgam.

本文主要報告α-苯基-β-(3,5-二碘-4-羥苯基)-丙酸的詳細合成方法。所得產品毒性較舶來品稍低,在X射線下不透光度很大,適合臨床上胆囊造影之用。實驗過程中,曾以氫碘酸及紅磷還原對甲氧基-α-苯代肉桂酸,未獲成功。但此還原反應在鈉汞齊作用下,可以順利進行。

This paper describes the nature of striated inclusions present in certain mildsteel plates,the origin of such inclusions is discussed.Microscopic examinations supplemented by X-ray diffraction studies show thatthe main constituents of the striated inclusions present in the steel plates appearto be the same as found in the attacked layer of fire-clay refractories which predo-minately consist of mullite(3Al_2O_3·2SiO_2)and cristobalite.Taking into accountthe metallurgical history of the plate and change in the...

This paper describes the nature of striated inclusions present in certain mildsteel plates,the origin of such inclusions is discussed.Microscopic examinations supplemented by X-ray diffraction studies show thatthe main constituents of the striated inclusions present in the steel plates appearto be the same as found in the attacked layer of fire-clay refractories which predo-minately consist of mullite(3Al_2O_3·2SiO_2)and cristobalite.Taking into accountthe metallurgical history of the plate and change in the chemical compositionof the refractories brought about during teeming,there is reason to believe thatstriated inclusions in steel may be originated from the refractories caused bythe attack of MnO or MnO·FeO present in the liquid steel.

本文叙述在某低碳钢板材夹层所观察到的非金属夹杂物的特征,并对夹层的来源进行了分析。金相检查结合X射线鉴定结果指出矽酸盐夹层与受钢液侵蚀过的粘土耐火材料的矿物组成大致相同,主要为莫来石(3Al_2O_3·2SiO_2)及方石英。根据钢的生产过程,夹杂物的特征及粘土耐火材料受钢液侵蚀后化学成分改变的情况,认为矽酸监夹层的来源可能与钢液中的MnO或MnO·FeO侵蚀粘土耐火材料有关。这种分析并得到了理论的解释。

The decomposition of δ-ferrite at 750°,850° and 950℃ in quenched 18/8/3/1Cr-Ni-Mo-Ti stainless steel specimens has been studied microscopically,thetransformation products being electrolytically extracted and identified by X-raydiffraction method.At early stages of decomposition accicular austenite forms along certaincrystallographic planes of δ-ferrite.As a result,the remaining ferrite becomesenriched in Cr,Mo and impoverished in C,Ni,Mn,and was found to transformsubsequently to sigma which begins after heating...

The decomposition of δ-ferrite at 750°,850° and 950℃ in quenched 18/8/3/1Cr-Ni-Mo-Ti stainless steel specimens has been studied microscopically,thetransformation products being electrolytically extracted and identified by X-raydiffraction method.At early stages of decomposition accicular austenite forms along certaincrystallographic planes of δ-ferrite.As a result,the remaining ferrite becomesenriched in Cr,Mo and impoverished in C,Ni,Mn,and was found to transformsubsequently to sigma which begins after heating for 5-6 minutes at 850℃.Precipitation of titanium carbide first occurs in the ferrite grains,later itmakes appearance along the ferrite-austenite interphase boundaries and along thetwinning planes within the austenite grain.The precipitation of titanium carbideseems to have no appreciable effect on the sequence of decomposition of δ-ferrite.The impact value of the steel was found to decrease very markedly before thecommencement of the δ→σ transformation and it is considered that this mightbe associated with the titanium carbide precipitation.

应用金相法研究了18/8/3/1 Cr-Ni-Mo-Ti不锈钢经1300℃固溶处理后在950℃,850℃及750℃恒温分解初期金相组织的变化,并用电解分离及X射线衍射方法鉴定在不同恒温分解阶段δ-铁素体分解的产物。观察到由于提高了固溶处理温度,高温固定下来的铁素体极为不稳定,在分解为奥氏体的同时有TiC的沉淀出现。当δ→γ的转变,由于Cr,Mo等合金元素的偏聚不能继续进行时,才发现残留的δ-铁素体转变为σ-相。过去一般认为18/8型不锈钢在550—1000℃保温后,室温冲击靭性的降低是由于σ-相的沉淀所引起的,试验结果指出在σ-相出现之前,钢的冲击靭性已显著下降,这种现象可能与δ-铁素体分解初期TiC的沉淀有关。

 
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