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公开(公告)号:US5380642A
公开(公告)日:1995-01-10
申请号:US173300
申请日:1993-12-22
CPC分类号: G03C1/053 , G03C1/0051 , G03C1/047 , G03C2001/0055 , G03C2001/03594
摘要: A process for preparing a thin tabular grain silver halide emulsion comprised of silver halide grains which have a halide content of at least 50 mole percent bromide, wherein tabular grains of less than 0.15 micrometers in thickness and having an aspect ratio of greater than 8 account for greater than 50 percent of the total grain projected area, comprises the steps of nucleating the silver halide grains with a gelatino-peptizer or with the use of certain synthetic polymers that serve as effective nucleation peptizers and then growing the silver halide grains with the use of either a gelatino-peptizer or certain synthetic polymers that serve as effective growth peptizers.
摘要翻译: 一种制备由卤化银颗粒组成的薄片状颗粒卤化银乳剂的方法,该卤化银颗粒的卤化物含量至少为50%(摩尔)溴化物,其中厚度小于0.15微米,长宽比大于8的片状颗粒占据 占总颗粒投影面积的大于50%的步骤包括用明胶胶溶剂将卤化银颗粒成核的步骤或使用某些合成聚合物作为有效的成核胶溶剂,然后使用 用作有效成长胶溶剂的明胶胶溶剂或某些合成聚合物。
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公开(公告)号:US5575242A
公开(公告)日:1996-11-19
申请号:US201215
申请日:1994-03-21
申请人: James E. Davis , Byron H. Rubin
发明人: James E. Davis , Byron H. Rubin
CPC分类号: A01K15/023
摘要: There is described a system for controlling the movement of an animal relative to a controlled area delineated by a wire loop antenna. The controlled area may be inclusive or exclusionary. A frequency modulated signal is transmitted by the FM transmitter connected to the loop. An FM receiver attached to the animal detects the transmitted signal and provides an alarm signal to the animal. The loop antenna is untuned. Low radio frequencies are used and the carrier frequency deviation is large to reduce the systems susceptability to noise. The modulating frequency is limited, also to reduce susceptibility to noise. Integrated circuits are especially designed to permit operation with very low power.
摘要翻译: 描述了一种用于控制动物相对于由线环天线描绘的受控区域的运动的系统。 受控区域可能是包容性或排斥性的。 频率调制信号由连接到环路的FM发射机传输。 连接到动物的FM接收器检测发送的信号并向动物提供报警信号。 环形天线未被恢复。 使用低无线电频率,并且载波频率偏差大,以减少系统对噪声的敏感性。 调制频率有限,也降低了对噪声的敏感性。 集成电路特别设计用于以非常低的功率运行。
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