Method for protecting tuyeres for refining a molten iron
    1.
    发明授权
    Method for protecting tuyeres for refining a molten iron 失效
    用于保护风口以精炼铁水的方法

    公开(公告)号:US4436287A

    公开(公告)日:1984-03-13

    申请号:US511511

    申请日:1983-07-06

    IPC分类号: C21C5/34 C21C5/48 C21B7/16

    CPC分类号: C21C5/48 C21C5/34

    摘要: Wear of tuyeres for refining a molten iron is prevented by blowing a CO-containing gas having the defined flow amount, oxygen gas flow amount and CO gas concentration as a shrouding gas which surrounds a core refining gas flow containing oxygen gas through tuyeres of concentric pipes. As the shrouding gas for cooling and protecting the tuyeres, use may be made of an exhaust gas discharged and recovered from a converter or a blast furnace by controlling the concentrations of CO and N.sub.2 in the exhaust gas to the specific limitations.

    摘要翻译: 通过将具有规定流量,氧气流量和CO气体浓度的含CO气体作为围绕通过含有氧气的核心精炼气流的覆盖气体吹入通过同心管的风口来防止风口的磨损 。 作为用于冷却和保护风口的遮蔽气体,可以通过将废气中的CO和N 2的浓度控制在特定的限制条件下,使用从转炉或高炉中排出和回收的废气。

    Pinhole video camera
    3.
    发明授权
    Pinhole video camera 失效
    针孔摄像机

    公开(公告)号:US06335759B1

    公开(公告)日:2002-01-01

    申请号:US08961159

    申请日:1997-10-30

    申请人: Nobuo Harada

    发明人: Nobuo Harada

    IPC分类号: H04N5225

    CPC分类号: H04N5/2251 H04N5/2254

    摘要: A pinhole camera in which a conical lens with an apical angle of 91.13° to 91.15° is used to correct the fisheye characteristics, and ⅓-inch fixed charged coupled device and a pinhole with a diameter of 0.8 mm are adopted to obtain clear image of a subject in an range from a point closely adjacent to the camera to a point far from the camera with strong contrast. The pinhole video camera comprising: a printed circuit board to which ⅓-inch fixed coupled charged device is attached; a holder fixed so as to cover a front surface of the coupled charged device of the printed circuit board; a lens holder having a pinhole with a diameter of 0.8 mm; a conical convex lens with an apical angle of 91.13° to 91.15°, the conical convex lens fixed on a rear face side of the pinhole of the lens holder.

    摘要翻译: 使用针尖为91.13〜91.15的锥形透镜来校正鱼眼特性的针孔照相机,采用1/3英寸固定电荷耦合器件和直径为0.8mm的针孔,以获得被摄体的清晰图像 在从相机附近的点到远离相机的点的强烈对比度的范围内。 所述针孔摄像机包括:附接有1/3英寸固定耦合充电装置的印刷电路板; 固定以覆盖印刷电路板的耦合充电装置的前表面的保持器; 具有直径为0.8mm的针孔的透镜架; 顶角为91.13至91.15的锥形凸透镜,固定在透镜架的针孔背面侧的锥形凸透镜

    3-amino-3-carbamoyloxyalkylacrylic acid intermediates to dihydropyridines
    4.
    发明授权
    3-amino-3-carbamoyloxyalkylacrylic acid intermediates to dihydropyridines 失效
    3-氨基-3-氨基甲酰氧基烷基丙烯酸中间体转化为二氢吡啶

    公开(公告)号:US4739106A

    公开(公告)日:1988-04-19

    申请号:US865654

    申请日:1986-05-16

    CPC分类号: C07D295/205 C07D211/90

    摘要: A process for preparing a 2-carbamoyloxyalkyl-1,4-dihydropyridine derivative represented by the general formula: ##STR1## which comprises: (a) reacting a 3-amino-3-carbamoyloxyalkylacrylic acid derivative represented by the general formula: ##STR2## with a benzylidene compound represented by the general formula: ##STR3## (b) reacting the 3-amino-3-carbamoyloxyalkylacrylic acid derivative of the general formula II with an aldehyde compound represented by the general formula: ##STR4## and a .beta.-keto-ester compound represented by the general formula:R.sup.4 --CO--CH.sub.2 --COOR.sup.2 (V)(c) reacting a 3-carbamoyloxyalkylpropiolic acid derivative represented by the general formula: ##STR5## with the benzylidene compound of the general formula III and ammonia or its salt; or(d) reacting the 3-carbamoyloyalkylpropiolic acid derivative of the general formula VI with the aldehyde compound of the general formula IV, the .beta.-keto-ester compound of the general formula V and ammonia or its salt.

    摘要翻译: 一种制备由以下通式表示的2-氨基甲酰氧基烷基-1,4-二氢吡啶衍生物的方法:(I),其包括:(a)使由以下通式表示的3-氨基-3-氨基甲酰氧基烷基丙烯酸衍生物: (II)与通式(III)表示的亚苄基化合物反应:(b)使通式II的3-氨基-3-氨基甲酰氧基烷基丙烯酸衍生物与通式 (IV)和由通式R4-CO-CH2-COOR2(V)表示的β-酮酯化合物(c)(c)使由以下通式表示的3-氨基甲酰氧基烷基丙酸衍生物反应: (VI)与通式Ⅲ的亚苄基化合物和氨或其盐; 或(d)使通式VI的3-氨基甲酰基烷基丙酸衍生物与通式IV的醛化合物,通式V的β-酮酯化合物和氨或其盐反应。

    .alpha.-Tocopheryl ester of 5-substituted picolinic acid and hypotensive
composition containing it
    5.
    发明授权
    .alpha.-Tocopheryl ester of 5-substituted picolinic acid and hypotensive composition containing it 失效
    5-取代的吡啶甲酸的α-生育酚和含有它的低血压组合物

    公开(公告)号:US4443459A

    公开(公告)日:1984-04-17

    申请号:US379060

    申请日:1982-05-19

    CPC分类号: C07D405/12

    摘要: An .alpha.-tocopheryl 5-substituted picolinate of the formula ##STR1## wherein R represents an alkyl group which may have a substituent, a lower alkenyl group, a phenyl(lower alkyl) group, or a phenyl group which may have a substituent, and Q represents a methylene group or an oxygen or sulfur atom, or a pharmaceutically acceptable acid addition salt thereof. This compound can be produced by reacting a substituted picolinic acid of the formula ##STR2## wherein R and Q are as defined above, or its reactive derivative with .alpha.-tocopherol of the formula ##STR3## and as required, contacting the resulting compound with a pharmaceuticlly acceptable acid. A pharmaceutical composition comprising said compound as an active ingredient is useful for the treatment of hypertension.

    摘要翻译: 其中R表示可以具有取代基的烷基,低级链烯基,苯基(低级烷基)或可以具有取代基的苯基的α-生育基5-取代吡啶甲酸盐,其中R表示可以具有取代基的烷基, Q表示亚甲基或氧或硫原子,或其药学上可接受的酸加成盐。 该化合物可以通过使式(IMAGE)其中R和Q如上所定义的取代的吡啶甲酸或其活性衍生物与式IMAMA的α-生育酚反应,并根据需要使所得化合物与 药用可接受的酸。 包含所述化合物作为活性成分的药物组合物可用于治疗高血压。

    2-Substituted or unsubstituted aminocarbonyloxyalkyl-1,4-dihydropyridines
    6.
    发明授权
    2-Substituted or unsubstituted aminocarbonyloxyalkyl-1,4-dihydropyridines 失效
    2-取代或未取代的氨基羰氧基烷基-1,4-二氢吡啶

    公开(公告)号:US4404378A

    公开(公告)日:1983-09-13

    申请号:US366137

    申请日:1982-04-06

    CPC分类号: C07D211/90

    摘要: Novel compounds having vasodilation and hypotensive effects are represented by the formula ##STR1## where R.sup.1 is halogen, nitro, cyano or lower alkoxy; each of R.sup.2 and R.sup.3 is lower alkyl, lower haloalkyl, lower alkoxyalkyl, aralkyloxyalkyl, aryloxyalkyl, lower alkenoxyalkyl, N,N-di-lower alkylaminoalkyl, N-lower alkyl-N-aralkylaminoalkyl, piperidylalkyl, 4-lower alkyl piperazinylalkyl, norpholinoalkyl or 1-pyrrolidinylalkyl; R.sup.4 is lower alkyl; A is lower alkylene; and R.sup.5 is hydrogen, lower alkyl, cycloalkyl of 3 to 7 carbon atoms, or aryl unsubstituted or substituted by one or two substituents selected from halogen, nitro, lower alkyl, lower alkoxy, di-lower alkylamino and cyano.Also disclosed are processes for their preparation.

    摘要翻译: 具有血管扩张和降血压作用的新型化合物由式(I)表示,其中R 1是卤素,硝基,氰基或低级烷氧基; R2和R3各自为低级烷基,低级卤代烷基,低级烷氧基烷基,芳烷氧基烷基,芳氧基烷基,低级烷氧基烷基,N,N-二 - 低级烷基氨基烷基,N-低级烷基-N-芳烷基氨基烷基,哌啶基烷基,4-低级烷基哌嗪基烷基, 1-吡咯烷基烷基; R4是低级烷基; A是低级亚烷基; 或R 5为氢,低级烷基,3-7个碳原子的环烷基,或未被取代或被一个或两个选自卤素,硝基,低级烷基,低级烷氧基,二低级烷基氨基和氰基的取代基取代的芳基。 还公开了它们的制备方法。