摘要:
Disclosed herein is a high temperature-resistant and abrasion-resistant sliding member of graphite-boron carbides showing the friction coefficient of 0.01 to 0.13 and the specific abrasion amount of 10.sup.-7 to 10.sup.-9 mm.sup.2 /kg under the measuring conditions of the load of 20 kg/cm.sup.2 and the sliding velocity of 5 m/min at a temperature of 300.degree. C., the bending strength of 300 to 1600 kg.f/cm.sup.2 and the Shore hardness of from 45 to 60, obtained by mixing and stirring from 65 to 95% by weight of powdery carbon of an average particle size of 10 to 150 .mu.m and from 5 to 35% by weight of powdery boron carbide of an average particle size of 0.5 to 2.5 .mu.m until the powdery boron carbide is uniformly dispersed in the powdery carbon, and sintering the thus formed mixture at a temperature of 2020.degree. C. or more and less than the transition point at which the structure of carbon and boron carbide in the thus formed mixture is remarkably changed, under a pressure of 100-250 kg/cm.sup.2.
摘要:
Disclosed herein is a high temperature-resistant and abrasion-resistant sliding member of graphite-metal borides showing a friction coefficient of 0.01 to 0.09 and a specific amount of abrasion of 1.0 to 4.0.times.10.sup.-8 mm.sup.2 /kg under the measuring conditions of a load of 20 kg/cm.sup.2 and a sliding velocity of 5 m/min at an atmosphere temperature of 300.degree. C., a bending strength of 230 to 900 kg.f/cm.sup.2 and a Shore hardness of 28 to 45, produced by sintering (a) 70 to 93% by weight of amorphous carbon powder, (b) 5 to 20% by weight of at least one boride of a metal of IVa group, Va group of VIa group of the periodic table and (c) 2 to 10% by weight of powdery natural graphite, powdery Kish graphite or a mixture thereof.
摘要翻译:本文公开了一种石墨 - 金属硼化物的耐高温耐磨滑动构件,其在负载的测量条件下表现出摩擦系数为0.01至0.09,磨损的特定量为1.0至4.0×10-8 mm2 / kg 20kg / cm 2,滑移速度为5m / min,气氛温度为300℃,弯曲强度为230〜900kg·f / cm 2,肖氏硬度为28〜45,烧结(a )70〜93重量%的无定形碳粉末,(b)5〜20重量%的IVa族金属的至少一种硼化物,周期表的VIa族的Va族,(c)2〜10% 粉末状天然石墨,粉状Kish石墨或其混合物。
摘要:
A battery chamber includes: a claw mechanism for a battery including: a movable member that is movable in insertion and removal directions of a battery, and abuts a front face of the battery in the insertion direction when the battery is inserted and completely loaded; an urging member that urges the movable member in the removal direction; and a stopper having: a locking claw that locks a back face of the battery from behind in the insertion direction when the battery is completely loaded, wherein in a case where the battery is inserted, and the movable member is pressed and moved in the insertion direction by the battery, and then an interval in the insertion direction between the movable member and the locking claw becomes a length of the battery in the insertion direction, the locking claw moves from an evacuation position of the locking claw where the locking claw does not interfere with the battery when the battery is inserted to a locking position of the locking claw where the locking claw locks the back face of the battery from behind in the insertion direction when the battery is completely loaded.
摘要:
A camera body (1) of the present invention is provided with a concave portion (1A) in which an imaging unit (2) including a rectangular solid shaped case (2a) having an optical system and an imaging device is detachably disposed. When the case (2a) is viewed from a front side in a state where the case (2a) is disposed in the concave portion (1A), the camera body (1) includes a back face portion (1B) having a back face wall (4) located on the back of the case (2a) and facing a back face of the case (2a), a side face portion (1C) having a side face wall (6) facing a side face of the case (2a), and an upper face portion (1D) having an upper face wall (5) facing an upper face of the case (2a). The concave portion (1A) is defined by the back face wall (4), the side face wall (6), and the upper face wall (5), and is open on three sides where the remaining faces of the case (2a) are located at the time of attachment.
摘要:
By exposing somatic cells to a component derived from ES cells to act on somatic cells and detecting the activity thereof, the reprogramming agent can be screened. Further, by exposing somatic cells to a component including a reprogramming agent or an isolated reprogramming agent, the somatic cells can be reprogrammed. Furthermore, according to the present invention, since the tetraploid cells have proliferating capability and pluripotency, such cells can be differentiated and the cells, tissues or organs, which can be used for transplantation, can be produced.
摘要:
An object of the present invention is to efficiently establish cells, tissues, and organs capable of serving as donors for treating diseases, without eliciting immune rejection reactions, without starting with an egg cell. This object was achieved by providing a pluripotent stem cell having a desired genome. The cell was produced by treating with a reprogramming agent, producing a fusion cell of an MHC deficient stem cell with a somatic cell, or after producing a fusion cell of a stem cell with a somatic cell, removing a gene derived from the stem cell by performing genetic manipulation with a retrovirus.
摘要:
An imaging device includes a casing; a plurality of optical systems held by the casing; and a communication antenna held by the casing. The communication antenna is disposed in an area outside an optical path of light of a maximum angle of view of each of the plurality of optical systems.
摘要:
A camera body includes a recess to which an image pickup unit is detachably attached to be placed therein. The image pickup unit includes a housing having an optical system, an image pickup device, a first connector section. The recess has three wall sections including a back wall section facing a rear of the housing of the image pickup unit and a side wall section facing a side surface of the housing when the image pickup unit is placed in the recess. The side wall section includes a second connector section to be connected to the first connector section to perform communication. The back wall section is provided with a controlling member. A rear of the image pickup unit has an insertion opening into which the controlling member is to be inserted and an abutting section to allow the controlling member to abut thereon. When the image pickup unit is attached to the recess, the first connector section and the second connector section are connected to each other when the controlling member is inserted into the insertion opening, and the first connector section is not connected to the second connector section when the controlling member abuts on the abutting section.
摘要:
A measure selecting apparatus determines whether a vulnerability of a resource employed in a predetermined task has been addressed or not based on information stored in a memory. When the vulnerability of the resource is determined not to have been addressed and when a recovery time defined in the memory corresponding to the resource is longer than a predetermined time, the measure selecting apparatus evaluates measures defined in the memory corresponding to the vulnerability determined not to have been addressed, and calculates an evaluation value of each measure. The measure selecting apparatus selects a measure with a high evaluation value.
摘要:
Ink is transported to the transporting passage side by circulating the ink from inside to the outside of the coil spring. When foreign materials are mixed within ink, the foreign materials can be captured in the gaps of the windings of the coil spring.