摘要:
To provide a method for simply evaluating results of simulations based on the Matsuzaki-Ryu model. A hole drilling tool for forming holes, including a plurality of cutting edges, wherein, when each of the cutting edges is applied to a characteristic equation of the Matsuzaki-Ryu model, an integer value closest to an imaginary part of a quasi-static characteristic root s, which is a characteristic root at a frequency ω = 0, is set to N 0 , and, when a maximum real part of the quasi-static characteristic root s which satisfies 3 ≤ N 0 ≤ 2n + 1 (n is the number of the cutting edges) is a maximum real part σ MAX , a maximum real part Tσ MAX of the hole drilling tool is within a predetermined threshold value with respect to a maximum real part Rσ MAX of a reference hole drilling tool.
摘要:
An object of the present invention is to provide a novel liquid repellent. A liquid repellent including a poly(hydrocarbylamine) derivative, which is poly(hydrocarbylamine) substituted by one or more substituents, wherein at least one of the substituents is a substituent on an amine nitrogen in the poly(hydrocarbylamine), and is represented by the formula:
-R ay
in which R ay is a hydroxyethyl group optionally having one or more substituents (at least one of the substituents is an alkyl group optionally having one or more substituents).
摘要:
A vibration damping device 20 includes: a crank member 22 that is coupled to a driven member 15 via a first coupling shaft A1 and that is swingable about the first coupling shaft A1 along with rotation of the driven member 15; and an inertial mass body 24 that is coupled to the driven member 15 via the crank member 22 and a connecting rod 23 and that is swung about a center of rotation RC in conjunction with the crank member 22 along with rotation of the driven member 15. A component force of a centrifugal force that acts on the crank member 22 along with rotation of the driven member 15 in a direction that is orthogonal to the direction from the center of the first coupling shaft A1 toward the center of gravity G always acts on the crank member 22 as a restoring force that acts to return the inertial mass body 24 to the center of the swing range. The component force is maximum when the inertial mass body 24 is positioned at the center of the swing range.
摘要:
A method of identifying a subject having cancer who is likely to be responsive to a treatment compound, comprising administering a treatment compound to a subject having cancer; obtaining a sample from the subject; determining the ratio of a first biomarker level to a second biomarker level in the sample from the subject, wherein at least one of the biomarkers is a CRBN-associated protein; and diagnosing the subject as being likely to be responsive to the treatment compound if the ratio of the biomarker levels in the sample of the subject changes as compared to a reference ratio of the biomarker levels.
摘要:
A guide portion arrangement structure and a guide portion arrangement method arrange a third guide portion in a predetermined position of a drill head for cutting work, thereby stably maintaining an orientation of the drill head and straight movement action of a tip during the cutting. Thus, a favorable surface state of an inner surface of a processed hole can be obtained. The third guide portion is arranged in a position where the effect can be obtained stably and the degree of freedom is high. In a guide portion arrangement structure of a drill head used for cutting work while being supplied with cutting oil, the guide portion contacting an inner surface of a hole of a work piece at an outer periphery of the drill head and receiving a cutting force of a blade portion while maintaining a clearance for passing the cutting oil therethrough, the guide portion includes first to third guide portions arranged on the outer periphery of the drill head. As for a portion of each guide portion that is farthest in a radial direction from the center of rotation of the drill head, it is positioned in an angular range of 80 degrees to 100 degrees about the first guide portion, it is positioned in an angular range of 170 degrees to 190 degrees about the second guide portion, and it is positioned in at least one of an angular range of 1 degree to 34 degrees, an angular range of 146 degrees to 179 degrees and an angular range of 326 degrees to 359 degrees about the third guide portion, on a delay side of the blade portion in the direction of the rotation when a position of a cutting edge of the blade portion is at 0 degree.
摘要:
The present invention is to provide a carbonaceous material for the air electrode of an air battery, which has more oxygen reduction reaction initiating points than conventional carbonaceous materials, and an air battery comprising the carbonaceous material. Disclosed is a carbonaceous material for use in an air electrode of an air battery, wherein an average aspect ratio of the carbonaceous material is 1 or more and less than 10, and an edge area of a surface of the carbonaceous material is 55 m 2 /g or more.
摘要:
The drive of direct-heat-supply type reforming of hydrocarbon at ordinary temperature is necessary in order to realize a self-sustaining, on-site reforming type fuel cell system which does not necessitate the supply of energy from the outside. According to the invention, an oxide, CeO 2 or Pr 6 O 11 , or a Ce/Zr or Ce/Zr/Y double oxide is used as the oxide containing a rare earth element capable of changing the oxidation number with an active metal and oxygen defects are introduced into the oxide or double oxide by activating the oxide or double oxide with a reducing gas at high temperature. When a reaction gas containing hydrocarbon and oxygen is passed though the catalyst at low temperature, the oxygen defects react with oxygen and thereby return to the original oxide. Since this return reaction is an exothermic reaction, the catalyst itself is heated, which acts as the driving force for advancing the combustion of the hydrocarbon, whereby the catalyst layer is further heated and the reforming is advanced to from hydrogen. Thus, the hydrogen-producing reaction can be driven even at low temperature, particularly ordinary temperature.
摘要:
The present invention provides: a cellulose nanofiber enabling the provision of a high-performance sheet-like material; a method for producing the cellulose nanofiber; and a sheet-like material obtained from the cellulose nanofiber. A bamboo-derived cellulose nanofiber having a cellulose purity of at least 90%, a fiber diameter of 10-20 nm, and a crystallinity of at least 70% can be obtained by a method comprising: (1) a step for subjecting a bamboo material to an alkali treatment and a mechanical treatment to prepare bamboo fibers; (2) a step for delignificating the obtained bamboo fibers; (3) a step for mechanically spreading the delignificated bamboo fibers; (4) a step for removing hemicellulose from the spread bamboo fibers; and (5) a step for removing metal components from the bamboo fibers from which hemicellulose has been removed. A high strength sheet material having a tensile strength of 7-200 N for a basis weight of 10-210 g/m 2 or a high strength sheet material having a tensile strength of 7-200 N for a density of 0.3-1.1 g/cm 3 can be obtained by making this cellulose nanofiber into a sheet.