摘要:
A heat exchanger is disclosed, which comprises a plurality of heat-transfer elements (1) placed side by side each of which has more than one through-hole (3) and which are cyclically bent in a generally trapezoidal waveform in the direction of the flow of a fluid, the bends in one heat-transfer element (1) being out of phase with those in an adjacent heat-transfer element (1) by one-half cycle in such a manner that the main stream of said fluid will flow not through the holes in each of said heat-transfer elements (1) but through the passage formed by adjacent heat-transfer elements (1). This arrangement serves to provide improved heat-transfer characteristics.
摘要:
A printing apparatus includes a print section that performs printing according to print data, a registering section that registers in advance an information processing apparatus creating and transmitting print data in response to a print instruction from a user, and storing print data that has not been received by a transmission destination in a memory, a determination section that determines whether the print data that has not been received by the printing apparatus is stored in the registered information processing apparatus, when the printing apparatus changes from a data-reception state to a non-data-reception state, a request section that requests the information processing apparatus, in which the print data is determined to be stored, to transmit the stored print data, and a controller that controls the print section to perform printing according to the print data transmitted in response to the request, when the print data is received.
摘要:
The present invention relates to a pyrimidine compound or a pharmaceutically acceptable salt thereof represented by the following formula [I] wherein each symbol is as defined in the specification and a method of therapeutically or prophylactically treating an undesirable cell proliferation, comprising administering such a compound. The compound of the present invention has superior activity in suppressing undesirable cell proliferation, particularly, an antitumor activity, and is useful as an antitumor agent for the prophylaxis or treatment of cancer, rheumatism, and the like. In addition, the compound of the present invention can be a more effective antitumor agent when used in combination with other antitumor agents such as an alkylating agent or metabolism antagonist.
摘要:
A semiconductor device including: a semiconductor element 1, a heat conductor 91 opposed to the main surface of the semiconductor element 1, and a sealing resin 6 for sealing at least a part of the semiconductor element 1 and a part of the heat conductor 91, the heat conductor 91 having a surface partially exposed from the sealing resin 6 to the outside, the surface being opposite to the other surface facing the main surface of the semiconductor element 1, wherein the semiconductor device further includes an opening 11 penetrating in the thickness direction on a part of the surface including an exposed part of the heat conductor 91. Since resin can be injected from the opening 11 facing the main surface of the semiconductor element 1, the quality can be stabilized.
摘要:
Non-magnetic powder of particles for non-magnetic lower layer applications is provided that enables a multilayer coating type magnetic recording medium having good surface smoothness to be obtained. The particles are iron compound particles having a long axis with a standard geometrical deviation, as obtained from a transmission electron microscope image, that is greater than 1.5, and a short axis with a standard geometrical deviation, as obtained from a TEM image, that is greater than 1.35. The iron compound particles may be hematite or iron oxyhydroxide.
摘要:
A high-reliability iron nitride-based magnetic powder with markedly improved weatherability with respect to deterioration over time of the magnetic properties in fine particles smaller than 25 nm is formed by adhering one or more of the elements Si and P to the surface of an iron nitride-based magnetic powder constituted primarily of Fe16N2 with an average grain size of 25 nm or less, where the total content of Si and P in the magnetic powder may be 0.1% or greater as an atomic ratio with respect to Fe. In particular, the invention provides an iron nitride-based magnetic powder such that the value ΔHc as defined by Equation (1) below is 5% or less and the value Δσs as defined by Equation (2) below is 20% or less. ΔHc=(Hc0−Hc1)/Hc0100 (1) Δσs=(σs0−σs1)/σs0100 (2) Here, Hc1 and σs1 are the coercivity and saturation magnetization, respectively, of the magnetic powder after being kept for one week at a constant temperature and constant humidity of 60° C. and 90% RH. Hc0 and σs0 are the coercivity and saturation magnetization of the magnetic powder before being kept at constant temperature and constant humidity.
摘要:
In a power steering system of this invention, a control valve is provided for supplying working fluid to a power cylinder by an amount proportional to a steering effort supplied to an input shaft and obstructing supply of working fluid to the power cylinder when a steering wheel is in a neutral position. A conversion mechanism which includes an operation rod (operating device) capable of operating the control valve is provided for converting the steering effort supplied to the input shaft to displacement of the operation rod. A directional control valve is provided which is disposed between the control valve and the power cylinder for switching supply of working fluid from one of cylinder chambers of the power cylinder to the other according to the direction of the steering effort on the input shaft while controlling discharge of working fluid from the cylinder chambers.
摘要:
An air outlet has a plurality of vertical vortex generating structures 21 in a triangular shape arranged so as to be oriented at an angle .theta. with respect to diffused air.
摘要:
A mechanism for controlling the flow of air from an air-conditioning unit includes a row of guide vanes which are pivotally held by an outlet nozzle. The guide vanes are located at the lower end of an air course which has been formed within a body of the air-conditioning unit. The guide vanes control the flow of air in both left and right directions. This new design is characterized in that the angle of inclination of each guide vane progressively changes toward the end of the row. The air flow is controlled accurately in both the left and right directions so that the air flow reaches the desired location.
摘要:
The optical module of the invention includes: a first substrate; a vertical-cavity surface-emitting laser including an upper surface, a bottom surface and a semiconductor multi-layered structure including at least a light-emitting layer, the vertical-cavity surface-emitting laser being supported on the first substrate; an electrode structure electrically connected with the bottom surface of the vertical-cavity surface-emitting laser, the electrode structure being supported on the first substrate; and a second substrate including a first bump and a second bump. In the optical module, an upper surface of the electrode structure and the upper surface of the vertical-cavity surface-emitting laser jut out from the first substrate. The second substrate is positioned with respect to the first substrate so that the first bump and the second bump come into contact with an upper surface of the electrode structure and the upper surface of the vertical-cavity surface-emitting laser, respectively.