摘要:
This invention provides a capsule type retroreflective sheeting excelling in strength and longterm weatherability, the connecting walls, which partially connect the light-transmitting protective film and support film while retaining the spaces between the two films, being free of internal flaws such as deficiently filled portions and having uniform structure and shape. The capsule type retroreflective sheeting in which the connecting walls are formed by partially thermofusing and thermoforming the support film is characterized in that the support film is composed of a resin composition which contains a thermofusible rein and a crosslinking agent, said thermofusible resin having a shearing stress at 180.degree. C. within a range of 9.times.10.sup.3 .times.1.times.10.sup.5 dyne/cm.sup.2, and which can form a non-fusible crosslinked resin having a shearing stress at 180.degree. C. of at least 1.times.10.sup.6 dyne/cm.sup.2 after the crosslinkage.
摘要翻译:本发明提供一种具有强度和长期耐候性的胶囊型逆反射片,连接壁部分地连接透光保护膜和支撑膜,同时保持两个膜之间的间隔,没有内部缺陷,例如不充分的部分 并具有均匀的结构和形状。 其中通过部分热熔和热成型支撑膜形成连接壁的胶囊型定向反光片的特征在于,支撑膜由含有热熔性树脂和交联剂的树脂组合物构成,所述热熔性树脂具有剪切应力 在180℃下在9×10 3×1×10 5达因/ cm 2的范围内,并且可以在交联后形成在180℃下具有至少1×10 6达因/ cm 2的剪切应力的不熔融交联树脂。
摘要:
The invention provides a communication network system which permits parallel access of a plurality of nodes to a transmission line and which has a high throughput and low delay, with fairness among the nodes maintained. In the communication network system, a plurality of tokens correspondingly associated with the nodes, respectively, are allowed to circulate on the transmission line. Each node is allowed to transmit data only when the frame insertion buffer is empty. The node, when having data to be transmitted, awaits the arrival of a token. If a token that has arrived corresponds to the self node, or if a node corresponding to the arrived token is downstream of the destination node as viewed from the own self node, the node forms a packet from its holding data and transmits it onto the transmission line.
摘要:
A processing vessel suitable for use with a washing system intended to wash a plurality of wafers. The processing vessel includes a washing solution supply source, a circulation pump, a filter, a main vessel portion provided with inlets in the bottom thereof, a boat for holding the plurality of wafers in the center area of the main vessel portion and a flow control assembly arranged between the inlets and the wafers. The flow control assembly includes a scattering plate for scattering washing solution, which is introduced into the main vessel portion through the inlets, in the horizontal direction, and guiding passages through which the washing solution introduced through the inlets is made to have a substantially laminar flow and is guided into the center area of the main vessel portion. The guiding passages are formed by intervals between side plates and the scattering plate and by a plurality of apertures in the scattering plate. These guiding passages enable most of the washing solution to positively flow through spaces between the adjacent wafers. The flow control assembly also include a flow rate reducing section for reducing the amount of the washing solution which flows along the peripheral area of the wafers.
摘要:
A polytetrafluoroethylene porous film, which is prepared by stretching a semisintered polytetrafluoroethylene material and heating the stretched material at a temperature higher than the melting point of sintered polytetrafluoroethylene, has an area ratio of fibrils to nodes of from 99:1 to 75:25, an average fibril diameter of from 0.05 to 0.2 .mu.m, a largest node area of not larger than 2 .mu.m.sup.2 and an average pore size of from 0.2 to 0.5 .mu.m and achieves low pressure loss.
摘要:
A process for producing a grain-oriented electrical steel sheet having improved magnetic and surface film properties, comprising: using an electrical silicon steel slab containins S in an extremely small amount of 0.012 wt % or less and Mn in a limited range of 0.08 to 0.45 wt %; heating the slab to a relatively low temperature of not higher than 1200.degree. C.; hot-rolling the slab to form a hot-rolled strip; cold-rolling the strip to a thickness of a final product sheet; decarburization-annealing the cold-rolled strip; nitriding the strip while it is travelling; applying an annealing separator to the strip; and final texture-annealing the strip by heating the strip to a first temperature of from 800.degree. to 850.degree. C. in an atmosphere of (N.sub.2 +Ar).gtoreq.30 vol % with 25 vol % or more N.sub.2 and the remainder H.sub.2 and subsequently heating from the first temperature to above 1200.degree. C. in a conventional atmosphere.
摘要:
A process for producing a grain-oriented steel sheet having superior magnetic and surface film characteristics, which comprises the steps of: heating to a temperature of 1200.degree. C. or lower an electrical steel slab comprising 0.025 to 0.075 wt % C, 2.5 to 4.5 wt % Si, 0.012 wt % or less S, 0.010 to 0.060 wt % acid-soluble Al, 0.010 wt % or less N, 0.080 to 0.045 wt % Mn, and the balance consisting of Fe and unavoidable impurities; hot-rolling the heated slab to form a hot-rolled steel sheet; cold-rolling the hot-rolled sheet to a final product sheet thickness by single cold rolling step or by two or more steps of cold rolling with an intermediate annealing therebetween; decarburization-annealing the cold-rolled sheet under a condition such that decarburization alone is effected until primary-recrystallized grains grow to an average grain size of at least 15 .mu.m, and thereafter, concurrently effecting a decarburization and nitriding; applying an annealing separator to the decarburization-annealed sheet; and final-annealing the annealing separator-applied sheet.
摘要:
A power supply for negative impedance discharge loads such as discharge tubes used in gas laser systems, in which the discharge power is supplied not from the voltage source but from the current source through the current transformer so that stabilized and well balanced discharge currents can be supplied to a plurality of discharge loads.
摘要:
Method for subdividing the magnetic domains of a grain-oriented electrical steel sheet is improved so that the watt loss can be further lessened and the watt-loss improving effect does not disappear during stress relief annealing. An intrudable means is formed on the finishing-annealed steel sheet on or in the vicinity of strain which promotes the intrusion of an intrudable means. Sb or Sb containing material is a preferred intrudable means and the laser irradiation is a preferred method for imparting the strain and also for attaining the removal of a surface coating.
摘要:
The apparatus includes circuits for detecting sequential carrier phases of a complex baseband signal and storing the detected carrier phases. A phase predictor is responsive to the detected carrier phases for producing a predicted carrier phase. A circuit is also provided for compensating for a carrier phase deviation of the complex baseband signal in response to the predicted phase. An error detector detects an error associated with data discriminated from the complex baseband signal and a controller controls the phase predictor to minimize the error.
摘要:
A wheelchair is disclosed in which a body support frame pivoted to a main frame can move from a seated posture to a stand-up posture and vice versa without using an external elevating force. The wheelchair includes the main frame for supporting driving wheels and auxiliary wheels and a body support frame formed by interconnecting a lower limb support member, a waist support member and a back rest member to one another. The forward portion of the main frame and the tip portion of the waist support member are turnably supported by a pivot, and an extension member for turnably supporting the waist support member with the pivot as the support point is interposed between the main frame and the waist support member. The motive force for the stand-up operation of the body support frame relies upon the push-up force of the user of the wheelchair (the body lift-up force of the user by his or her upper limbs) and the force of the extension member.