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公开(公告)号：US4325257A
公开(公告)日：1982-04-20
申请号：US122880
申请日：1980-02-20
申请人： Gordon S. Kino , Paul D. Corl , Peter M. Grant
发明人： Gordon S. Kino , Paul D. Corl , Peter M. Grant
CPC分类号： G01N29/262 , G01S15/8918 , G01S7/52046 , G10K11/341
摘要： The invention involves a digital synthetic-focus, acoustic imaging system which is operative in real time and includes one or more electro-acoustic transducers arranged to receive broadband pulses from a pulse generator for excitation of acoustic pulses which are directed into the region under observation. Signals reflected from an object or discontinuity in the region are received by the same transducers, and after inverse filtering and nonlinear amplification are converted to digital signals. These digital signals are stored in separate high speed random access memory units for storage, but are subsequently time-equalized through use of a programmed focus memory unit prior to delivery to a digital adder and thence through a digital-to-analog converter for ultimate intensity modulation on a raster scanned display unit which provides the real time image.
摘要翻译： 本发明涉及一种实时操作的数字合成焦点声学成像系统，并且包括一个或多个电声换能器，其布置成从脉冲发生器接收宽带脉冲，用于激发被引导到观察区域内的声脉冲。 从该物体反射的信号或该区域的不连续性由相同的换能器接收，并且在逆滤波和非线性放大转换成数字信号之后。 这些数字信号存储在用于存储的单独的高速随机存取存储器单元中，然后在递送到数字加法器之前通过使用编程的聚焦存储器单元随后进行时间均衡，并且然后通过数模转换器实现极限强度 在提供实时图像的光栅扫描显示单元上进行调制。
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公开(公告)号：US4133783A
公开(公告)日：1979-01-09
申请号：US699022
申请日：1976-06-23
CPC分类号： C09D101/14 , Y10S524/904 , Y10T428/2982
摘要： Thermosetting powder coating compositions comprising cellulose butyrate having a butyryl content of from about 35% to about 55% by weight, a hydroxyl content of from about 0.5% to about 3.0% by weight, and a viscosity of from about 0.05 to about 1.0 second are disclosed. The composition further comprises a crosslinking agent and a catalyst which allows the powder to flow out prior to fusion. Coatings formed by this composition have excellent physical properties and appearance.
摘要翻译： 包含丁酸含量为约35重量％至约55重量％，羟基含量为约0.5重量％至约3.0重量％，粘度为约0.05至约1.0秒的含丁酸丁酯的热固性粉末涂料组合物为 披露 组合物还包含交联剂和允许粉末在熔融之前流出的催化剂。 由该组合物形成的涂料具有优异的物理性能和外观。
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公开(公告)号：US4007144A
公开(公告)日：1977-02-08
申请号：US661878
申请日：1976-02-27
IPC分类号： C09D101/14 , C08L1/14
CPC分类号： C09D101/14
摘要： A thermosetting powder coating composition comprises a low molecular weight cellulose acetate butyrate as the major component, an aminoplast crosslinking agent, a latent acid crosslinking catalyst, and certain poly(alkylene glycols).
摘要翻译： 热固性粉末涂料组合物包含低分子量乙酸丁酸纤维素作为主要组分，氨基塑料交联剂，潜酸交联催化剂和某些聚（亚烷基二醇）。
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公开(公告)号：US3574860A
公开(公告)日：1971-04-13
申请号：US3574860D
申请日：1966-03-25
CPC分类号： A61K9/2866
摘要： A MEDICAMENT IS SURROUNDED BY A LAYER OF SODIUM ETHYL CELLULOSE SULFATE, WITH OR WITHOUT A DIFFERENT CELLULOSE DERIVATIVE AND/OR A PLASTICIZER. THIS NEW COMPOSITION PROVIDES A COATING WHICH IS GLOSSY, SMOOTH AND HARD, WHICH IS LESS BULKY THAN SUGAR, AND WHICH DISINTEGRATES RAPIDLY IN GASTRIC FLUIDS OF THE STOMACH. THE RATE OF DISINTEGRATION IN GASTRIC FLUIDS CAN BE CONTROLLED BY TAILORING COMPOSITIONS WITH DIFFERENT PERCENTAGESOF INGREDIENTS FOR DIFFERENT RATES OF DISINTEGRATION.
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5.发明授权Powder coating composition comprising a particulate form of a carboxylated polyolefin 失效包含颗粒形式的羧化聚烯烃的粉末涂料组合物
公开(公告)号：US3932368A
公开(公告)日：1976-01-13
申请号：US418160
申请日：1973-11-21
IPC分类号： C08F255/00 , B05D1/06 , C08F8/46 , C08F255/02 , C09D5/03 , C09D151/06 , C25D13/06
CPC分类号： C09D151/06 , C08F255/02 , C08F8/46 , Y10S525/934
摘要： A powder coating composition particularly useful in coating unprimed substrates which comprises a particulate form of a carboxylated polyolefin. The carboxylated polyolefin is prepared by reacting a polyolefin with an unsaturated dicarboxylic acid component. The carboxylated polyolefin has a saponification number of about 2 to about 12. The carboxylated polyolefin also has either a melt flow of from about 15 to about 175 g./10 minutes at 230.degree.C. or a melt index of 5 to 75 at 190.degree.C. The particulate form has a particle size of less than 20 mesh.
摘要翻译： 一种粉末涂料组合物，其特别可用于涂覆未经染色的底物，其包含颗粒形式的羧化聚烯烃。 羧化聚烯烃通过使聚烯烃与不饱和二羧酸组分反应来制备。 羧化聚烯烃的皂化值为约2至约12.羧化聚烯烃还具有在230℃下约15至约175g / 10分钟的熔体流动或在190℃下熔体指数为5至75的熔体流动 该颗粒形式的粒度小于20目。
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公开(公告)号：US4357709A
公开(公告)日：1982-11-02
申请号：US204672
申请日：1980-11-05
摘要： Apparatus for generating signals to interfere with or jam signals detected as unfriendly in a given input frequency band comprises a spectrum analyzer circuit using surface acoustic wave (SAW) chirp filters to provide a transformation of input frequency signals to a series of time displaced signals in a linear frequency-to-time relationship. The analyzer circuit uses the SAW devices to perform multiply-convolve functions that separate the different frequency signals in time and the analyzer is repetitively triggered to perform a spectrum analysis. The time series signals are selectively applied to a frequency synthesizer having a time-to-frequency relationship that matches the analyzer characteristic so as to regenerate signals at the input frequencies. The synthesizer uses two matched chirp filters one activated by a fixed time signal and the other by the time series to generate swept frequencies that are mixed to provide the required frequency outputs. The time series is processed to inhibit those signals corresponding to frequencies identified as friendly. In an alternative synthesizer the time series signals are converted to frequency-representing digital codes which are applied to a programmable frequency generator. Signal processing to protect friendly frequencies is performed on the digital codes.
摘要翻译： 用于产生信号以干扰或阻塞在给定输入频带中被检测为不友好的信号的装置包括使用表面声波（SAW）啁啾滤波器来提供输入频率信号到一系列时间偏移信号的变换的频谱分析器电路 线性频率 - 时间关系。 分析仪电路使用SAW器件来执行多次卷积功能，可以及时分离不同的频率信号，重复触发分析仪进行频谱分析。 时间序列信号被选择性地施加到具有与分析器特性匹配的时间 - 频率关系的频率合成器，以便再现输入频率处的信号。 合成器使用由固定时间信号激活的两个匹配的啁啾滤波器，另一个通过时间序列产生混频以提供所需频率输出的扫频。 处理时间序列以抑制对应于被识别为友好的频率的那些信号。 在替代合成器中，时间序列信号被转换成施加到可编程频率发生器的频率代表数字码。 对数字代码执行信号处理以保护友好的频率。
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