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     An Information Theory Approach to the Data Compression and Imaging System for Synthetic Aperture Radar (SAR)
     An Information Theory Approach to the Data Compression and Imaging System for Synthetic Aperture Radar (SAR)
短句来源
     SAR (Synthetic Aperture Radar) ATR (Automatic Target Recognition) is crucial to the success of battlefield awareness and has become a very hot research topic.
     基于合成孔径雷达(Synthetic Aperture Radar,简称SAR)的自动目标识别(Automatic Target Recognition,简称ATR)技术在战场感知方面非常重要,已成为国内外研究的热门课题。
短句来源
     The results showed that 1h,4h and 8h after blockade,the areas of saphenous representations(SAR) expanded by 32.5%(n=7)、93.0%(n=17) and 100%(n=4),respectively.
     结果表明,阻滞后1h、4h和8h,隐神经代表区(SAR)比对照分别增大32.5%(n=7)、93.0%(n=17)和100%(n=4)。
短句来源
     This paper discusses the principles of quasi-real time coding compression of SAR images and the realizing method in the project.
     论述了合成孔径雷达(SAR)图像准实时编码压缩的原理以及在工程上实现的方法。
短句来源
     But in the presence of [Sar1,Ile8]Ang Ⅱ(SAR), a specific Ang Ⅱ receptor antagonist, this hypertrophic response was suppressed.
     而同时加入血管紧张素Ⅱ受体特异性拮抗剂[Sar1,Ile8]-An-giotenseⅡ(SAR)后,则可抑制必要的合成。
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     TOMOGRAPHIC IMAGING OF SAR
     SAR层析成像
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     In this paper,a Direct Transformation for F.
     从SAR图像的F .
短句来源
     Study on Synthetic Aperture Radar (SAR) Imaging Techniques
     合成孔径雷达(SAR成像技术研究
短句来源
     Target Recognition in Synthesis Aperture Radar(SAR)Image
     合成孔径雷达(SAR图像目标检测
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  sar
We consider Synthetic Aperture Radar (SAR) in which backscattered waves are
      
Hence, the designed molecules represent good starting structures for further modification and structure-activity relationship (SAR) studies.
      
Structure-activity relationships (SAR) were investigated by functional group modification at the para-position of the C-1' and C-2' phenyl substituents on the central aromatic ring.
      
Based on the SAR (structure activity relationship) of TZDs (thiazolidinediones), 3-methyl-1-phenyl-2-pyrazoline-5-one was selected as a substitute for TZD.
      
Compounds of 3-methyl-1-phenyl-4-{4-[(5-methyl-2-phenyloxazol-4-yl)methoxy]benzylene(benzyl)}-2-pyrazol-5-one were designed and synthesized to find some more hypoglycemic active agents and further investigate the SAR of this class of compounds.
      
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Experiments on the metabolism of nucleic acids have shown that N- formyl-sarcolysin(N-F)may reduce the content of DNA both in normal animal tissues and in transplantable tumors.In view of these findings,the effect of N-F upon p~(32) incorporation into nucleic acids was investigated,and this was compared with the effect of sarcolysin. Mice and rats were used in the experiments.Fifteen μc of P~(32) in the form of Na_2HP~(32)O_4 solution were injected intraperitoneally into the animals 24 hours after the last dose...

Experiments on the metabolism of nucleic acids have shown that N- formyl-sarcolysin(N-F)may reduce the content of DNA both in normal animal tissues and in transplantable tumors.In view of these findings,the effect of N-F upon p~(32) incorporation into nucleic acids was investigated,and this was compared with the effect of sarcolysin. Mice and rats were used in the experiments.Fifteen μc of P~(32) in the form of Na_2HP~(32)O_4 solution were injected intraperitoneally into the animals 24 hours after the last dose of N-F.The animals were sacrificed 5—6 hours after the isotope injection, RNA and DNA were isolated by the procedure described in our previous paper.Sam- ples were plated and their radioactivities were counted,and the results obtained were expressed according to the method of Davidson and Freeman. The results indicate that N-F(80mg/kg)and sarcolysin(10mg/kg)administered once daily for 4 consecutive days inhibited markedly the incorporation of P~(32) into RNA and DNA of the spleens in normal rats and in mice bearing Ehrlich ascites car- cinoma.A marked depression of P~(32) incorporation into DNA of Yoshida ascites sar- coma was also noted when N-F was administered orally at 50 or 160 mg/kg,and sarco- lysin at 5 or 20mg/kg respectively for 2 consecutive days.However,these two drugs failed to produce any significant depression of P~(32) incorporation into RNA.It is very interesting that N-F produced marked depression of P~(32) incorporation into both RNA and DNA of Yoshida solid tumors with three doses of 160 mg/kg,while with a single dose of 160 mg/kg only depression of incorporation into DNA was observed.N-F had no effect upon P~(32) incorporation into the RNA and DNA in mice bearing Ehrlich solid tumors at daily doses of 50 or 100 mg/kg for 7—9 days,as well as in mice bearing reticulo-sarcoma L_2 at daily doses of 50 or 80 mg/kg.However,under the same con- ditions N-F and sarcolysin inhibited markedly the incorporation of P~(32) into DNA of the Ehrlich ascites cells.It thus appears that N-F and sarcolysin exert a similar pattern of influence upon nucleic acid metabolism.

本文报告 N-甲对 P~(32)参入正常及肿瘤组织(或细胞)中核酸的影响。N-甲在治疗剂量下对 P~(32)参入大鼠吉田肉瘤(腹水及实体型)及小鼠艾氏癌腹水型的肿瘤细胞(或组织)核酸有明显抑制作用,且以对参入 DNA 的影响最强。N-甲对 P~(32)参入小鼠艾氏癌实体型肿瘤组织核酸无影响;在小剂量下对 P~(32)参入小鼠网织细胞肉瘤组织核酸亦无明显影响。N-甲对 P~(32)参入正常及肿瘤动物脾脏核酸有明显抑制作用。N-甲与溶肉瘤素对 P~(32)参入正常及肿瘤组织核酸的影响类似,但在等毒性剂量下其作用较溶肉瘤素稍弱。

From assuming that the distribution of electro-magnetic fields in near field region of human's muscle was consistent with modes of applicators the formulas of approximately computing SAR (Specific Absorption Rate) for the rectangular waveguides with TE10 mode (TE10 mode for short) and circular waveguides with TE11 made (TE11 mode for short) were derived by method that electric field intensity was averaged in the integrating interval. The formulas may be used in computing therapeutic dose of the micromave...

From assuming that the distribution of electro-magnetic fields in near field region of human's muscle was consistent with modes of applicators the formulas of approximately computing SAR (Specific Absorption Rate) for the rectangular waveguides with TE10 mode (TE10 mode for short) and circular waveguides with TE11 made (TE11 mode for short) were derived by method that electric field intensity was averaged in the integrating interval. The formulas may be used in computing therapeutic dose of the micromave power and evaluating efficiency of two previous kinds of applicators with various parameters. For an applicator with an 13 xxxxxxxxxxxxxx13cm2 aperture, at a frequency of 915MHz and for a TE10 mode the values of SAR under 1cm fat layer were calculated by the formula given in this paper. The calculated results agree very closely with experimental data given in the reference [1].

本文从人体肌肉中近场区内的电磁场分布与加热器的工作模式相同这一假设出发,采用在积分区内求平均电场强度的方法,给出了矩形波导TE_(10).模(简写作TE(?)模)和圆波导TE_(11)模(简写作TE_(11)~o模)二类直接接触式加热器的比吸收率(SAR)的近似计算公式.公式可用来估算微波功率的治疗剂量及估价不同参数的上述二类加热器的效率.对于口径13×13cm~2的915MHzTE(?)模加热器,应用本文提出的公式计算1cm脂肪层下肌肉的SAR值,所得结果与文献[1]给出的实验数据十分接近.

This paper presents optical Fourier transforms having been used to measure wavelengths and orientation of sea waves in the Jasin area of the North Sea, that is located approximately 200 km north-west of Scotland. Input films were obtained from a synthetic aperture radar (SAR) borne on a satellite. The research work was carried out in Blackett Laboratory, Imperial College of Science and Technology, using optical Fourier transform equipment. The Institute of Ooeanographio Science provided us with SAR...

This paper presents optical Fourier transforms having been used to measure wavelengths and orientation of sea waves in the Jasin area of the North Sea, that is located approximately 200 km north-west of Scotland. Input films were obtained from a synthetic aperture radar (SAR) borne on a satellite. The research work was carried out in Blackett Laboratory, Imperial College of Science and Technology, using optical Fourier transform equipment. The Institute of Ooeanographio Science provided us with SAR films as well as a grant partly. Comparing the results obtained from direct measurement on the sea, or using the computer to calculate optical Fourier transforms of the input films of sea waves, with that obtained from our method, it is obvious that this method is quicker and more reliable.

本文将介绍应用光学傅里叶变换方法检测海洋波浪的存在、波浪周期及传播方向。原始信息从卫星运载合成孔径雷达的底片上得到。文章将给出傅里叶变换结果,并进行适当的讨论。

 
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