检索结果-南通市图书馆

Intensive Disturbance Suppression for HF Ground Wave Polarimetric Radar

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Journal of Harbin Institute of Technology(New Series) 1994年第1期1卷 1-6页

作者：刘永坦乔晓林

ＩｎｔｅｎｓｉｖｅＤｉｓｔｕｒｂａｎｃｅＳｕｐｐｒｅｓｓｉｏｎｆｏｒＨＦＧｒｏｕｎｄＷａｖｅＰｏｌａｒｉｍｅｔｒｉｃＲａｄａｒＬＩＵＹｏｎｇｔａｎＱＩＡＯＸｉａｏｌｉｎ（刘永坦）（乔晓林）（ＲｅｓｅａｒｃｈＩｎｓｔｉ... 详细信息

ＩｎｔｅｎｓｉｖｅＤｉｓｔｕｒｂａｎｃｅＳｕｐｐｒｅｓｓｉｏｎｆｏｒＨＦＧｒｏｕｎｄＷａｖｅＰｏｌａｒｉｍｅｔｒｉｃＲａｄａｒＬＩＵＹｏｎｇｔａｎＱＩＡＯＸｉａｏｌｉｎ（刘永坦）（乔晓林）（ＲｅｓｅａｒｃｈＩｎｓｔｉｔｕｔｅｏｆＥｌｅｃｔｒｏｎｉｃｓ...

关键词： ss: Polarization filtering disturbance suppression ground wave radar

MULTICHANNEL FOURIER TRANSFORM OPTICAL FEEDBACK IMAGE PROCESSING

在线全文

学校读者我要写书评

暂无评论

Chinese Science Bulletin 1984年第8期29卷 1013-1016页

作者：刘智深贺明霞 Department of Physics Shandong College of Oceano graphy Qindao

A multichannel optical Fourier transform has been proved to be a useful method for encoding spatial-frequency or density pseudocolor. The method of image-processing is accomplished by spatial-filtering the various time frequency channels. Compared with the Ronchi grating methods, this method has the advantages of high utilization ratio of light source, has no image resolution loss caused by grating sampling and does not require Fourier transforming lenses of large relative aperture.

关键词： grating aperture filtering encoding mirrors spacing accomplished processor encoded colored

在线全文

学校读者我要写书评

暂无评论

Inferno on Jupiter

当代外语研究 1994年第12期 7-9页

作者：诸葛勤

The initial sketchy reports began filtering into the U. S. by E-maillate Saturday afternoon. First a Spanish observatory announced that it hadspotted a plume of gas billowing up from the edge of Jupiter. Then

关键词： Jupiter afternoon Spanish plenty filtering really stake silent planet perhaps

CLEARING ELECTRON MICROSCOPIC IMAGES OF PROTEIN CRYSTALS BY OPTICAL METHOD

在线全文

学校读者我要写书评

暂无评论

Chinese Science Bulletin 1982年第1期27卷 83-85页

作者：李钦张树政郑师海董碧珍潘少华 Institute of Microbiology Academia Sinica Institute of Phyisics Academia Sinica

Electron micrographs with a periodic structure can be cleared by utilizing optical filtering techniques. The principle of the method is first to make an optical diffraction pattern, using a transparent electron mirograph as the diffraction grating. This pattern of diffraction spots is then carefully examined, and all the possible forms

关键词： utilizing spots grating Electron carefully filtered filtering transparent suspension 加略

在线全文

学校读者我要写书评

暂无评论

各种体制的导航制导系统

电子科技文摘 2003年第5期 76-76页

Y2002-63335-3861 0310235形状记忆合金定位系统的基于神经模糊控制试验=Neural-fuzzy based control experiments on a shape memo-ry alloy positioning[会,英]/Lei,K.F.& Yam,Y.//Proceedings of the 2001 American Control ConferenceVol.5 of 6.—3861～3865(HE)Y2002-63336-4375 0310236用于积分导航系统的序列蒙特卡罗滤波=SequentialMonte Carlo filtering techniques applied to

关键词：导航制导导航系统 positioning 形状记忆合金模糊控制 filtering 定位系统单站无源定位卫星轨道误差电子技术应用

在线全文

学校读者我要写书评

暂无评论

Late for work迟到

语言教育 1993年第11期 12-13页

作者：韩道成

Tucked up warm and fast asleep,Wandering in the land of dreams.While the daylight, filtering through,Says good-bye to moonlight beams.

关键词： dreams filtering overhead Late for work harsh morrow train minute slowly catch

在线全文

学校读者我要写书评

暂无评论

ECG Information

Chinese Journal of Biomedical Engineering(English Edition) 1993年第2期2卷 64-64页

SYNTHESES OF ORGANO-TIN COMPOUNDS THROUGN CARBENE REACTIONS

在线全文

学校读者我要写书评

暂无评论

Chinese Science Bulletin 1966年第2期24卷 71-页

作者：曾昭抡卓仁禧马纯俊 Department of Chemistry Wuhan University East China Institute of Chemical Technology Shanghai.

In a previous paper, insertion of dichlorocarbene into the Sn—Cl bond was reported. In this paper, it is shown that, similar to the Si—H and Ge—H bonds,the Sn—H bond can also undergo insertion reaction with dichlo... 详细信息

关键词： insertion bonds yielding residue filtering hydride distilled removing dichloro stirring

在线全文

学校读者我要写书评

暂无评论

Ceramisite

China's Foreign Trade 1994年第8期 46-46页

作者： Li Rong

Ceramisite is an important building material. Ceramisite comes in two forms—clay ceramisite and shale ceramisite. These ceramisites produced by Beijing City Tujiao Bricks and Tiles Factory and Beijing Ceramisite Factory include various ceramisites used for building, thermal insulation, water screen filtering, and sound absorption, They can be mixed with cement to produce quality light weight bricks and hollow blocks for different constructions. They also can be used as filtering materials. It is very popular at home and abroad and sells well in Japan and Korea. The sole agency for the product is the Beijing City Building Materials Import & Export Corporation.

关键词： insulation Export filtering hollow Ceramisite comes blocks bricks agency shale