Abstract: Provided is a sequencing library which gives reduced sequencing errors, specifically a method for preparing a sequencing library, the method comprising: fragmenting sample DNA; and treating prepared fragments of the sample DNA with a single-strand-specific nuclease to remove single-stranded moieties from the fragments.

Abstract: It is intended to provide a method for conveniently analyzing mutations in cells at low cost. The present invention provides a method for analyzing mutations in a cell population, comprising: obtaining DNAs derived from the cell population; sequencing fragments of the DNAs to obtain one or more read sequences per fragment; comparing each of the one or more read sequences with a reference sequence to detect sites of mismatch bases between the each read sequence and the reference sequence; obtaining the sites thus detected in the one or more read sequences as sites of mutation; and obtaining information on mutations at the sites of mutation and analyzing the tendencies of the mutations on the basis of the information.

Abstract: A scroll compressor includes a fixed scroll and an orbiting scroll. Shapes of laps of the fixed scroll and the orbiting scroll are formed by an asymmetric tooth shape in which orbiting angles of an external line side compression room formed on an external line side of the orbiting scroll lap and an internal line side compression room formed on an internal line side of the orbiting scroll lap in finishing suction differ from each other. A communicating section control groove sets communicating sections communicating the respective inlet side openings of respective fluid outflow paths and a back pressure room. The communicating sections include a first communicating section of an internal line side compression room that is shorter than a second communicating section of an external line side compression room.

Abstract: The purpose of the present invention is to suppress the contact between the wrap tooth tip and the tooth bottom by enlarging the tooth bottom step, and to reduce the loss owing to the gap as a result of enlarging the tooth bottom step. The fixed scroll includes a fixed scroll-side flat plate and a fixed-side wrap standing on one surface of the fixed-side plate while retaining the spiral shape. The orbiting scroll includes an orbiting-side plate and an orbiting-side wrap standing on one surface of the orbiting-side plate while retaining the spiral shape. The orbiting-side wrap orbits with respect to the fixed scroll while being in mesh with the fixed side wrap to form a compression chamber. Each of the fixed-side plate and the orbiting-side plate has the step on the tooth bottom at the inner periphery deeper than the step on the tooth bottom at the outer periphery.

Abstract: The lap shapes of a fixed scroll and an orbiting scroll are configured in an asymmetric tooth profile. In the bed plate of an orbiting scroll, a fluid effluence channel communicating with an external line side compression room of an orbiting scroll lap and another fluid effluence channel communicating with an internal line side compression room are formed, and the outlet side opening of each fluid effluence channel opens in the lap tooth bottom of the orbiting scroll, and inlet side openings are formed in a face of the bed plate that is in sliding contact with the bed plate face of the fixed scroll. In the face of the bed plate, a communicating section control groove that lets the inlet side openings of the two fluid effluence channels and the back pressure room intermittently communicate with each other.

Abstract: A scroll compressor configures suction and compression rooms between fixed and orbiting scrolls, includes a back pressure room at the orbiting scroll base plate back face, and is configured in an asymmetric tooth shape. A fluid outflow path for an orbiting scroll lap external line side compression room and a fluid outflow path for an internal line side compression room are configured on an orbiting scroll base plate, and outlet side openings of the respective fluid outflow paths are opened to an orbiting lap tooth bottom. Inlet side openings of the respective fluid outflow paths are opened to the orbiting scroll base plate face sliding with the fixed scroll, and a fixed scroll base plate face is configured with a communicating section control groove for intermittently communicating the inlet side openings of the respective fluid outflow paths and the back pressure room in accordance with an orbiting movement.

Abstract: A device for comprising a support bar and a holding bar formed with holes respectively extending therethrough and arranged coaxially in alignment with each other and a valve operating rod slidably extending through the holes and supported by the bars. When a heater wire is elongated by a gas flame, an auxiliary spring acts to incline the holding bar, causing the holding bar to hold the valve operating rod by the principle of friction ratchet, with the rod maintaining a stop valve in its open position. On contraction of the heater wire due to extinction of the gas flame, the holding bar returns to its original position, releasing the valve operating rod, which in turn closes the stop valve under the action of a spring.