摘要:
A loop scavenged two-stroke internal combustion engine which can effectively restrain blow-by of fresh gas with a relatively simple configuration is provided. A horizontal scavenging angle θb in at least one spot of a scavenging passage 31L located at one side of the pair of or a plurality of pairs of left and right scavenging passages is made to differ from a horizontal scavenging angle θa of a scavenging passage 31R located at the other side, and a main flow of a scavenging flow which is blown out from the scavenging passage 31L located at the one side and a main flow of a scavenging flow which is blown out from the scavenging passage 31R which is located at the other side intersect each other or collide with each other in plane view in a region displaced in a lateral direction from a center line C of an opening of an exhaust port 34.
摘要:
A loop scavenged two-stroke internal combustion engine which can effectively restrain blow-by of fresh gas with a relatively simple configuration is provided. A horizontal scavenging angle θb in at least one spot of a scavenging passage 31L located at one side of the pair of or a plurality of pairs of left and right scavenging passages is made to differ from a horizontal scavenging angle θa of a scavenging passage 31R located at the other side, and a main flow of a scavenging flow which is blown out from the scavenging passage 31L located at the one side and a main flow of a scavenging flow which is blown out from the scavenging passage 31R which is located at the other side intersect each other or collide with each other in plane view in a region displaced in a lateral direction from a center line C of an opening of an exhaust port 34.
摘要:
There is provided a reverse scavenged two-stroke internal combustion engine that is capable of effectively suppressing the short-circuiting of fresh charge (unburnt air-fuel mixture), while at the same time being capable of further improving scavenging efficiency, combustion efficiency, etc. The horizontal sectional shape of at least one pair of scavenging passages (31, 31 and 32, 32) is closer to a triangle than a parallelogram along substantially the entire lengths of the at least one pair of scavenging passages, where a cylinder outer circumferential side of the horizontal sectional shape is narrowest and a cylinder bore wall surface (10a) side of the horizontal sectional shape is wide. Further, horizontal scavenging angles (α, β), which are angles of intersection formed between lines (Ea, Ea and Eb, Eb) extended towards an intake port (33) from guide wall surfaces (31c, 31c and 32c, 32c) that define the scavenging passages (31, 31 and 32, 32), are acute.
摘要:
A reverse scavenged two-stroke internal combustion engine is capable of effectively suppressing the short-circuiting of fresh charge (unburnt air-fuel mixture), while at the same time being capable of further improving scavenging efficiency, combustion efficiency, etc. The horizontal sectional shape of at least one pair of scavenging passages is closer to a triangle than a parallelogram along substantially the entire lengths of the at least one pair of scavenging passages, where a cylinder outer circumferential side of the horizontal sectional shape is narrowest and a cylinder bore wall surface side of the horizontal sectional shape is wide. Further, horizontal scavenging angles, which are angles of intersection formed between lines extended towards an intake port from guide wall surfaces that define the scavenging passages, are acute.
摘要:
The present invention provides new methods of intervention for anxiety associated disorders, in particular, trauma-derived disorders such as PTSD, and therapeutic or prophylactic agents for anxiety associated disorders that can be used as foods, beverages, and dietary supplements, for example, and which contain as an active ingredient n-3 polyunsaturated fatty acids contained in krill oil or fish oil, for example. The present invention further provides methods for alleviating fear memory or methods for preventing its formation by adjusting the proportion of n-3 polyunsaturated fatty acids to n-6 polyunsaturated fatty acids as ingested.
摘要:
A braking device capable of generating a larger braking force is provided. The present invention provides a braking device including a housing 10 having a peripheral wall 11, a coil holding unit 20 provided inside the housing 10, a coil 30 held by the coil holding unit 20, a first activation chamber 40 formed between an inner peripheral surface of the peripheral wall 11 of the housing 10 and an outer peripheral surface of the coil holding unit 20 arranged in parallel with the inner peripheral surface, a rotor 60 provided inside of the first activation chamber 40, and a magnetorheological fluid 80 filling an inside of the first activation chamber 40, wherein the inner peripheral surface of the peripheral wall 11 of the housing 10 is at a position farthest from the center of rotation of the rotor 60 in a radial direction in the inside of the housing 10, wherein the rotor 60 is in a cylindrical shape including an outer peripheral surface having a gap between the outer peripheral surface of the rotor 60 and the inner peripheral surface of the peripheral wall 11 of the housing 10 and an inner peripheral surface having a gap between the inner peripheral surface of the rotor 60 and the outer peripheral surface of the coil holding unit 20, and wherein a shearing stress of the magnetorheological fluid 80 acts on the inner peripheral surface and the outer peripheral surface of the rotor 60.
摘要:
A metamaterial comprising a plurality of unit lattices which are arrayed on a plane in a two dimensional manner and are laminated, wherein a dielectric layer is formed from a first dielectric section and a second dielectric section that is present on the same plane as the first dielectric section and has a smaller refractive index than that of the first dielectric section, wherein the first dielectric section is arranged on an upper side or a lower side of the metal cross layer forming the unit lattice including at least a portion of the crossing region, and wherein the second dielectric section is arranged on an upper side or a lower side of the metal cross layer forming the unit lattice including at least a portion of the non-crossing region.
摘要:
The present invention provides new methods of intervention for anxiety associated disorders, in particular, trauma-derived disorders such as PTSD, and therapeutic or prophylactic agents for anxiety associated disorders that can be used as foods, beverages, and dietary supplements, for example, and which contain as an active ingredient n-3 polyunsaturated fatty acids contained in krill oil or fish oil, for example. The present invention further provides methods for alleviating fear memory or methods for preventing its formation by adjusting the proportion of n-3 polyunsaturated fatty acids to n-6 polyunsaturated fatty acids as ingested.
摘要:
A refractive index distributed optical element having a refractive index varying within a plane, including a positive refractive index distributed portion having a positive refractive index varying within the plane and a negative refractive index distributed portion having a negative refractive index varying within the plane. The absolute values of the refractive indexes of the positive refractive index distributed portion and the negative refractive index distributed portion decrease toward a region between the positive refractive index distributed portion and the negative refractive index distributed portion.
摘要:
A solid state image sensor includes an extracting unit including a plurality of pixels, each having an optical waveguide formed by a core and a clad for guiding incident light entering the pixel to a photoelectric converter section via the core. The extracting unit is formed by at least two pixels including a first pixel and a second pixel and the cores in the optical waveguides of the first and second pixels are designed to show an oblate cross section and arranged with their respective major axes disposed in different directions.