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    • 3. 发明授权
    • Heavy metal adsorbent process
    • 重金属吸附剂工艺
    • US3970553A
    • 1976-07-20
    • US525513
    • 1974-11-20
    • Kazuki TerajimaShigeru TomitaYoshindo MatsudaKeiji Abe
    • Kazuki TerajimaShigeru TomitaYoshindo MatsudaKeiji Abe
    • B01J20/22C02F1/28C02F9/00B01D15/00C02B1/52
    • C02F1/62B01J20/22C02F1/286C22B3/24C02F2101/20Y02P10/234Y10S210/912
    • A process for removing heavy metal ions from aqueous solutions with an adbent comprising granules of a mixture of nitrohumic acid and at least one binder selected from the group consisting of a carboxyl group-containing polymeric compound and a water-insoluble salt thereof. These heavy metal adsorbents are produced advantageously by either a process wherein a mixture of nitrohumic acid and a carboxyl group-containing polymeric compound is kneaded with an aqueous solution of alkali and the kneaded mixture is first subjected to an acid treatment and then shaped into granules, or a process wherein nitrohumic acid and a carboxyl group-containing polymeric compound are dissolved in an aqueous solution of alkali, the solution is acidified to form a precipitate and then the precipitate is separated and shaped into granules. The granular products thus obtained can be further improved in mechanical strength by means of a heat treatment.
    • 一种从含水溶液中除去重金属离子的方法,该吸附剂含有硝基琥珀酸与至少一种选自含羧基的聚合物及其非水溶性盐的粘合剂的混合物的混合物的颗粒。 这些重金属吸附剂有利地通过以下方法生产:其中将硝基酸和含羧基的聚合物的混合物与碱的水溶液混合,然后将捏合的混合物进行酸处理,然后成型为颗粒, 或其中将硝基酸和含羧基的聚合物溶解在碱的水溶液中的方法,将该溶液酸化以形成沉淀物,然后将沉淀物分离并成型为颗粒。 通过热处理可以进一步提高由此获得的粒状产品的机械强度。
    • 8. 发明授权
    • Channel selecting apparatus having a channel skip function
    • 频道选择装置具有频道跳过功能
    • US5193005A
    • 1993-03-09
    • US863533
    • 1992-04-06
    • Shigeru Tomita
    • Shigeru Tomita
    • H03J1/00
    • H03J1/005
    • In a CATV receiver or television receiver channel selecting apparatus provided with a controlling device wherein, on the basis of a channel-up or channel-down channel selecting operation, data corresponding to local oscillation frequencies of the respective channels are output, a tuning voltage is prepared by using these data and the local oscillation frequency of the tuner is controlled, the above mentioned controlling device is provided with a device for memorizing the information as to whether it is inhibited or permitted to select the respective channels at the time of the channel-up or channel-down channel selection so as to memorize the common channel selection inhibiting information for a plurality of channels not allowed to exist simultaneously and to be ablve to save the memory capacity of the memory (RAM) of the channel selecting microcomputer; and further, a device for quickly searching the input signal frequency of the channel without a mis-operation in the case of selecting an objective channel at the time of the up/down channel selection is provided.
    • 在具有控制装置的CATV接收机或电视接收机信道选择装置中,其中,基于频道上行或下行信道选择操作,输出与各个频道的本地振荡频率对应的数据,调谐电压为 通过使用这些数据和调谐器的本地振荡频率进行控制,上述控制装置设置有用于存储信息的装置,用于在信道编号时是否禁止或允许选择各个信道, 以便存储同时不允许同时存在的多个信道的公共信道选择禁止信息,并且消除以节省信道选择微计算机的存储器(RAM)的存储容量; 并且提供一种用于在选择上/下频道选择时选择目标频道的情况下快速搜索频道的输入信号频率而不误操作的装置。