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shadowing
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  遮蔽
     In this paper, we analyse the spatial overlapping behavior of sea quarks of neighboring nucleons in nuclei in the small x region and give a relation between the nuclear shadowing factor R(x, Q~2, A) and the spatial overlapping factor △V_Λ(x)/V_Λ(x).
     本文分析了小x区原子核内邻近核子间海夸克空间重叠行为,给出了核遮蔽因子R(x,Q~2,A)与空间重叠程度因子△V_Λ(x)/V_Λ(x)的关系.
短句来源
     Nuclear shadowing in the Drell-Yan process on K factor's
     核遮蔽效应对Drell-Yan过程K因子的影响
短句来源
     4.Through shadowing effect,we analysis light scattering characteristic of fractal rough surface.
     4.引入遮蔽效应分析分形粗糙表面光散射特性。
短句来源
     Considering quark condensate contributions from the QCD vacuum,the non-perturbative effect on the K-factor is investigated for the C-C collision Drell-Yan process with and without nuclear shadowing respectively,at the center-of-mass energy s= 630 and 200 GeV.Comparison of the results indicates that both the non-perturbative effect and the nuclear shadowing effect pose a weak influence on the K-factor.
     考虑非微扰量子色动力学物理真空夸克凝聚效应,计算了碳核与碳核在质心系能量分别为630和200 GeV时碰撞Drell-Yan过程的K因子,以及加入核遮蔽因子后非微扰效应对K因子的影响,并把计算结果与没有考虑夸克凝聚非微扰效应的K值进行了对比。 结果表明,非微扰效应和核遮蔽效应对K因子影响很小。
短句来源
     Study on the Shadowing Effect and Doppler Spectra for the Scattering from the Time-Varying Fractal Rough Sea Surface
     动态分形粗糙海面散射的遮蔽效应和多普勒谱研究
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  “shadowing”译为未确定词的双语例句
     (3) 5%(1/21)was anechoic with posterior acoustic shadowing;
     (3) 5 % (1/2 1)呈无回声 ,后方回声衰减 ;
短句来源
     We found no shadowing of the myocardium in dose 0 0025ml/kg,tracing in 0 005ml/kg,significant in 0 01ml/kg and strong in 0 02ml/kg.
     剂量为0.0025ml/kg时未产生声影,0.005ml/kg产生轻微声影; 0.01ml/kg出现明显声影;
短句来源
     shadowing was seen in 1 case (11%) of AML.
     1例 AML (11% )出现声衰减。
短句来源
     σ:∑+(S)→∑+(S)) be the shift map on the symbolic space and S={0,1,…,k-1}. then σ(resp.σ+)has the average shadowing property if and only if σn(resp.σn+) has the average shadowing property.
     同时,还给出了例子:设S={0,1,…,k-1},σ∶∑(S)→∑(S)(resp.σ∶∑+(S)→∑+(S))为符号空间上的移位自映射,则nσ(resp.nσ+)有平均跟踪性.
短句来源
     By using this nuclear shadowing factor R(x, Q~2, A),we calculate the ratios of the average nuclear structure functions of nuclei ~(12)C, ~(63)Cu and ~(116)Sn, to the deuteron structure function and obtais a better agreement between the calculated result and the experimental data.
     并据此计算了~(12)C、~(63)Cu和~(116)Sn的平均核结构函数与氘核结构函数之比,计算结果与实验数据符合甚好.
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  相似匹配句对
     Nuclear Shadowing Effect
     核遮蔽效应
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     On the Average-shadowing Property
     关于平均伪轨跟踪性质(英文)
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  shadowing
It is showed that the LmSP (limit shadowing property) for flows is invariant under topological equivalence, and the suspension flow ?f of a homeomorphism f under a continuous function ?: X → R>amp;gt;0 has LmSP+ if and only if f has LmSP+.
      
The estimation error is very small; thus, it does not change the log-normal distribution of the shadowing factor in the model.
      
Then, an iterative method is introduced to reduce the influence of shadowing, and the location estimation based on the received signal strength will be improved.
      
The effect of cosmic ray shadowing by the Moon is observed by recording the single muon component with the Baksan underground scintillation telescope (BUST).
      
A comparison of the experimental results with the simulation of the shadowing effect for the BUST observations is made.
      
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1. This is a report of the discovery of a widespread, probably infectious pneumonia of goats in the Canton area, based on X-ray diagnosis. Of a total of 1464 goats examined, 339 positive cases were encountered. Autopsy of 14 positive cases all confirmed the X-ray diagnosis, whereas postmortem findings of 16 negative cases showed accordance in 14 cases. Owing to the fact that X-ray examination in this disease affords rapid and early diagnosis, acquaintance with the development of the pathological state, timely...

1. This is a report of the discovery of a widespread, probably infectious pneumonia of goats in the Canton area, based on X-ray diagnosis. Of a total of 1464 goats examined, 339 positive cases were encountered. Autopsy of 14 positive cases all confirmed the X-ray diagnosis, whereas postmortem findings of 16 negative cases showed accordance in 14 cases. Owing to the fact that X-ray examination in this disease affords rapid and early diagnosis, acquaintance with the development of the pathological state, timely isolation and treatment of sick animals, as well as assessment of therapeutic effect, it assumes an important place in mass scale veterinary inspection and clinical practice among goat herds. 2. X-ray presentation of this disease is amalgamative broneopneumonic shadowing in the lower part of the pulmonary field. Pathologic changes are most frequently encountered in the cardiac and apical lobes, extending to the diaphragmatic lobes in serious cases. Lesions persist for a long time but often show spontaneous disappearance on continued observation. Secondary fibrosis of the lungs and bronchiectasis were met with in a few cases with bad courses. 3. The incidence of this disease is high, 23.15% of 1464 goats being found infected on X-ray examination. The incidence of One milk goat herd was found to be 43.15%, with a high 69.2% among the immature females. Clinical findings were cough, nasal discharge, increase in rate of respiration, a chronic course with rather long duration, no response to penicillin, streptomycin, sulfathiazole, neoaspharmine and with only partial therapeutic effect in the case of terramycin. This disease seems unlike primary broncho-pneumonia, contagious pleuropneumonia of goats. Pasteurella pneumonia, diplococcal pneumonia, pulmonary type of infectious agalactia of goats, and is suspected to be another kind of infectious pneumonia. Methods to raise the accuracy of X-ray diagnosis, as well as immediate steps to control the disease have also been discussed.

1.本文借X綫检查在广州地区发現山羊較广泛发生一种疑似传染性的肺炎,通过X綫对1464头山羊的检查,检出和报告了339例山羊肺炎的X綫診断。其中14例病羊曾剖检获得証实,另16例无肺炎山羊的剖检,14例符合X綫所見。X綫检查对本病能迅速与早期确定診断并了解病变情况,便于将病羊及时隔离与治疗,也可检查防治效果,对羊群的大批检疫及临床工作有較大的意义。 2.本病X綫表現为肺野下部的小叶融合性肺炎密影,病变最常分布于心、尖叶,严重者亦延及膈叶,炎灶长时間持續存在,追踪检查最后常見自然消退。少数經过不良者曾見 續发肺硬变与支气管扩张等表現。 3.本病发病率較高,1464头山羊中X綫見发病的占23.15%。有一牧場乳山羊发病率还高达43.15%,其中后备母羊竟高至69.2%。临床表現主要为咳嗽、鼻漏、呼吸加快,慢性經过,病程頗长,青霉素、鏈霉素、磺胺噻唑及914等缺乏疗效,土霉素只有部分治疗作用。可能是不同于原发枝气管肺炎、传染性胸膜肺炎、巴氏杆菌性肺炎、双球菌性肺炎或肺型传染性山羊无乳症的另一种传染性肺炎。此外,文內还討論了有关提高X綫診断准确性及当前如何防治本病等問題。

A virus was isolated from pigs infected with "red skin" disease. It could adapt itself to the PK15 cell line after blind passages and producedm arked cytopathic effect, characterized by the cells becoming round, strongly refractive and finally detaching from the glass surface. It could also by adapted to the IBRS cell line. After the virus suspension was centrifuged at 100,000g, the pellet was negatively stained for electron microscopy. The virus particles could be demonstrated with a diameter of 20—30 nm and...

A virus was isolated from pigs infected with "red skin" disease. It could adapt itself to the PK15 cell line after blind passages and producedm arked cytopathic effect, characterized by the cells becoming round, strongly refractive and finally detaching from the glass surface. It could also by adapted to the IBRS cell line. After the virus suspension was centrifuged at 100,000g, the pellet was negatively stained for electron microscopy. The virus particles could be demonstrated with a diameter of 20—30 nm and icosahedral symmetry. When the sample was stained with the metal-shadowing method, the virus particles were almost round in shape. 5-iodo-2-deoxyuridine could not inhibit its growth and when the infected cover-glass culture was stained with acridine orange, red granules were found in the cytoplasm. The virus was ether resistant, aoid(pH 3.0) resistant, and heat labile. It was completely inactivated at 50C for 60 minutes,though 1M MgC1_2 in the medium could procect it. It readily produced plaques on IBRS cell monolayers under the agar overlay, and could be clearly detected without the addition of neutral red solution. According to the main properties, it was suggested that the isolate was a porcine enterovirus.

从红皮病猪分离到一株病毒,在PK15细胞系中盲目传代后能够适应,并产生明显的细胞病变,特征为细胞变圆,折光力强,最后自玻面脱落,病毒也能适应IBRS细胞系。病毒悬液用100,000g超速离心沉淀,沉淀物的负染标本在电镜下观察,看到直径20—30nm的病毒颗粒,呈二十面体对称;在喷涂投影标本中则呈球状。5-碘-2-去氧尿核苷不能抑制其生长,吖啶橙染色看到细胞质内存在红色颗粒。病毒对乙醚不敏感,对pH3.0不敏感,50℃60分钟能将其完全灭活,但1M MgCl_2对它有保护作用。病毒在IBRS传代细胞单层培养中于琼脂复盖层下容易形成空斑,在不用中性红的情况下能清晰可见。根椐病毒的主要特征,可以认为这是一种猪肠道病毒。

The electron microscopic obser-vations on Mycoplasma gallisepticum stra-in S_6 cell and cell membrane were made by use of negative staining,shadowing and thin-section technique.The methods presented a picture of multiplicity of cellular shapes with diameter about 0.6μm.At one end of the cell there is a bleb which can be served morphologically to distingu-ish from other mycoplasma. The membrane,isolated by osmo-tic lysis,was shown to be relatively free of contaminants when cultures were harvested within...

The electron microscopic obser-vations on Mycoplasma gallisepticum stra-in S_6 cell and cell membrane were made by use of negative staining,shadowing and thin-section technique.The methods presented a picture of multiplicity of cellular shapes with diameter about 0.6μm.At one end of the cell there is a bleb which can be served morphologically to distingu-ish from other mycoplasma. The membrane,isolated by osmo-tic lysis,was shown to be relatively free of contaminants when cultures were harvested within 36 hrs.Small em-pty vesicles and sometimes with a bleb on one end can be seen from the ele-ctron micrograph of thin section.Thin-sectioned membrane fixed with osmi-um tetroxide showed a clearer trilamel-lar structure than those fixed with both glutaraldehyde and osmium tetroxide.

用负染、投影、超薄切片电镜技术研究鸡败血症支原体S_6细胞及细胞膜的超精细结构。结果表明,鸡败血症支原体S_6和其它类型支原体一样,具有多形态特征。细胞直径约为0.6微米。鸡败血症支原体细胞一端有小疱结构,此为其独特形态。用低渗法破碎鸡败血症支原体S_6细胞分离细胞膜,当细胞培养时间为36小时,可获较纯净的膜制品。分离出的膜结构为空囊状,有时在膜囊一端可见小疱状结构。用戊二醛与四氧化锇先后固定膜和四氧化锇单固定法进行比较,发现四氧化锇单固定可获更清楚的三层膜结构。

 
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