摘要:
By the vapor phase reaction of benzene or a monoalkylbenzene with an alkylating agent in the presence of a specific catalyst obtained by subjecting a zeolite to a treatment with a gas containing a silicic acid ester and then a calcination in an oxygen-containing gas, said zeolite being 10 or more with respect to its molar ratio of SiO.sub.2 /X.sub.2 O.sub.3 in which X is at best one member selected from the group consisting of Al, B and Cr and having a constraint index within the range of 1 to 15, various useful 1,4-dialkylbenzenes can be produced not only in high yield but also in high selectivity.
摘要翻译:通过使苯或单烷基苯与烷基化剂在存在特定催化剂的情况下进行气相反应,所述催化剂通过使沸石进行含硅酸酯的气体处理,然后在含氧气体中进行煅烧而获得,所述沸石 相对于SiO 2 / X 2 O 3的摩尔比为10以上,其中,X为选自Al,B和Cr中的一种以上且约束指数为1〜15的范围,各种有用的1, 4-二烷基苯不仅可以高产率而且以高选择性产生。
摘要:
A liquid crystal display device includes a liquid crystal (LC) panel; front and rear frames sandwiching therebetween the LC panel; a latch structure engaging together the LC panel and one of the front and rear frames. The latch structure includes a convex portion formed on one of the LC panel and the one of the front and rear panels and a concave portion formed on the other of the LC panel and the one of the front and rear frames to receive therein the convex portion, whereby the latch structure allows and restricts movement of the LC panel with respect to the one of the front and rear frames in a first direction normal to the LC panel and in a second direction parallel to the LC panel, respectively.
摘要:
A rotor for a vehicular alternating current generator has a relief space portion formed between axial holes of a pair of pole cores and a shaft for receiving therein a plastically deformed portion produced when the shaft is press-fitted in the axial holes of the pole cores. The relief space portion is located adjacent to a pair of closely contacting inner end faces of the pole cores so that the plastically deformed portion is let to move into a radially outward direction rather than further continuing movement in an axial direction within the relief space portion. The plastically deformed portion is thus prevented from entering between the inner end faces of the pole cores.
摘要:
A terminal (101) includes interfaces for communication with a mobile network (102) and a wireless LAN (103). A first IMS server (107) performs IMS call control processing relating to terminals located in the mobile network (102) and a second IMS server (111) relays a signal relating to IMS call control processing concerning terminals located in the wireless LAN (103). These IMS servers search for a mobile network packet gateway (106), a packet data gateway (110), and a gateway to be controlled by a route change request for requesting change of a packet transmission path and relay the route change request. The route change request provided from the terminal (101) is relayed by the IMS servers to provide the change request to all networks specified. The packet transmission path is changed by the gateway in accordance with the request. Thus, the terminal having the interfaces for both of the mobile communication network and the wireless LAN can select a network to use for each communication port.
摘要:
A radio network controller (104) according to the present invention outputs a context required for a terminal (110a) capable of communicating with a mobile communication network and a wireless local area network to communicate with the wireless local area network to the terminal (110a) among pieces of information input from wireless access gateways (105a, 105b) that control connection with one or more wireless local area networks (103a, 103b) and provide seamless handover of packet communication between the mobile communication network and the wireless LAN.
摘要:
A liquid crystal monitor incorporating therein a liquid crystal module having a direct backlight is configured to have receiving portions in a reflector 8 of the direct backlight that constitutes a liquid crystal module 13, in order to attach together the liquid crystal module 13 and a liquid crystal monitor member 12. The receiving portions are constituted by reflector extensions 111 that are formed by extending a bottom face of the reflector 8 toward a space between an inclined face of the reflector and an upper frame 2 of the liquid crystal module 13. Then, the liquid crystal monitor member 12 is fixed to the reflector extensions 111 by screws 407. Thus, the use of a space near the inclined face of the reflector allows a liquid crystal monitor to be thinned and reduced in its size and the width of monitor frame.
摘要:
An alternator has a rotor having magnetic poles along a circumferential direction and a cooling fan fixed to an end surface of the rotor in an axial direction. The fan has wing portions disposed along the circumferential direction. One wing portion has a fan base extending on or over first and second magnetic poles, first and second fixing members, respectively, fixing first and second fixing portions of the base to the first and second poles, and a fan blade extending from the fan base toward the axial direction. The base or blade has a boundary portion at which a boundary line between the blade and base crosses over a side line of the second pole, and a first distance between the first fixing portion and the boundary portion is substantially equal to a second distance between the second fixing portion and the boundary portion.
摘要:
An alternator for use in an automobile includes a stator supported between a front housing and a rear housing, and a rotor connected to a rotor shaft and rotatably supported inside the stator. A cooling fan is positioned at an end of a pole core of the rotor. The cooling fan is coupled to the rotor shaft by engaging edges of a center opening of the cooling fan with a non-circular flange formed on the rotor shaft. The cooling fan is correctly positioned relative to the rotor shaft, without using a jig, both in the radial direction and in the rotational direction of cooling fan. Noises and vibrations due to rotational imbalance of the cooling fan are suppressed.
摘要:
In a liquid crystal display device there are provided a frame, a liquid crystal panel, and a diffuser, the liquid crystal panel and the diffuser being supported by a frame formed of a white resin. The frame is composed of two short-side members and two long-side members. The short-side members are provided with reflectors respectively, and lamp mounting members formed of rubber are fitted with the reflectors to support end portions of lamps. The lamp mounting members are mounted to a back reflector to fix the lamps to the back reflector.
摘要:
In a stator of a vehicle ac generator, a slot insulator has a portion closing the opening of a slot. Therefore, portions of the stator winding disposed in the slot can be retained in the slot without an additional member, and water or the like can be shut out.