103results about How to "Control fluctuations" patented technology

Affords a GaN substrate from which enhanced-emission-efficiency light-emitting and like semiconductor devices can be produced, an epi-substrate in which an epitaxial layer has been formed on the GaN substrate principal surface, a semiconductor device, and a method of manufacturing the GaN substrate. The GaN substrate is a substrate having a principal surface with respect to whose normal vector the [0001] plane orientation is inclined in two different off-axis directions.

The invention relates to medical composition containing metformin and Vildagliptin and a preparation method thereof. The medical composition is formed by taking metformin chloride and Vildagliptin as medical active components and blending with pharmaceutically acceptable auxiliary materials; the invention adopts the metformin chloride and Vildagliptin as materials and adds auxiliary materials with some special kinds and proportions to prepare and develop diversified oral preparations such as tablets, capsules, granules, dispersible tablets, chewable tablets, buccal tablets, effervescent tablets, effervescent granules according to the technical method of the invention. The medical composition of the invention can be used for treating diabetes type II that can not be properly cured by alimentary control and sports and also for diabetes type II that can not be controlled by simply using metformin chloride or Vildagliptin.

A body weight support system that monitors and controls the level of support force within a stepcycle to result in normative center of mass movement and ground reaction forces. The system comprises a harness connected to a lift line which in turn is connected to a means for advancing and retracting the lift line. A control system is configured to monitor load on the cable and to regulate lift line advancement and retraction in response to load information. The support system can be combined with a treadmill for locomotor training of a subject.

A phosphor with a garnet structure is distinguished by the addition of Si. It is suitable in particular for photon excitation by light sources with an emission between 250 and 550 nm.

A phosphor with a garnet structure is distinguished by the addition of Si. It is suitable in particular for photon excitation by light sources with an emission between 250 and 550 nm.

The variable valve timing controller controls the valve timing of the intake valve. The variable valve timing controller has a phase adjusting mechanism which includes a first rotating member, a second rotating member, a first arm, and a second arm. The first rotating member rotates in synchronism with a driving shaft and the second rotating member rotates in synchronism with a driven shaft. The first arm is pivoted on the first rotating member and the second arm is pivoted on the second rotating member and the first arm. The phase adjusting mechanism varies the rotational phase of the driven shaft relative to the driving shaft with converting the a movement of the first arm and the second arm into the rotational movement of the first rotating member and the second rotating member.

The invention discloses a refrigerator and a control method for a refrigerating system of the refrigerator for achieving both-way controllability of the refrigerating amount and the refrigerating temperature so as to control the temperature of a freezing chamber and a cold storage chamber to fluctuate within the small range. The method comprises the steps that the temperature of the freezing chamber and the temperature of the cold storage chamber are obtained; and if it is determined that the temperature of the cold storage chamber meets the accurate temperature control condition of the cold storage chamber, after the temperature of the freezing chamber meets the accurate temperature control condition of the freezing chamber, the rotation speed of a compressor is controlled till the temperature of the freezing chamber reaches the first preset temperature, and then the aperture of an electronic expansion valve is controlled till the temperature of the cold storage chamber reaches the second preset temperature.

A base engine torque generated with an estimated intake air amount is estimated. An engine torque is corrected by correcting an ignition timing based on a difference between a required engine torque and the base engine torque. A torque correction amount is calculated based on a correction amount of the ignition timing. An actual engine torque is estimated based on the calculated torque correction amount and the base engine torque. A permitted component driving torque is a difference between the actual engine torque and the required vehicle driving torque. A component is controlled based on the permitted component driving torque.

Pressureless sintering of silicon carbide with fracture toughness in excess of about 4 MPa-m1 / 2 as measured by the single-edge precracked beam (SEPB) technique while maintaining a density greater than 3.1 g / cc for compositions with SiC greater than about 94 wt. % is made possible through the use of metallic Al to promote sintering and grain growth. Boron and carbon may be used as traditional sintering aids, with nitrogen to suppress grain growth, and additions of yttrium and / or lanthanide elements to promote intergranular fracture.

A pressure sensor includes a sensor element, and a resin package member that holds the sensor element. The sensor element is constructed by a semiconductor, and is capable of externally outputting an electric signal in accordance with strain generated when force is applied thereto. The sensor element is directly adhered to the package member via an adhesive layer that has Young's modulus in a range between 2.45×103 Pa and 2.06×104 Pa. Further the adhesive layer has a thickness equal to or more than 110 μm. Accordingly, the pressure sensor effectively restricts a variation in a sensor characteristic due to a thermal change.

A heat dissipating structure for an electronic device includes a heat source and a heat dissipating member. The heat dissipating member has an inner wall, an outer wall, and a plurality of partition walls. The inner wall receives heat transfer from the heat source. The outer wall opposes the inner wall at a distance. The partition walls connect the inner wall and the outer wall, and together with the inner wall and outer wall define a plurality of through-holes which are approximately the same shape and are aligned at roughly regular intervals along the inner wall or the outer wall. The through-holes are arranged along the vertical direction that allows most effective utilization of gravitational influence, and are open to the outside at the upper and lower ends thereof.

A control valve is provided with a spool and a supply port through which an operating oil is supplied. The spool is provided with an advance check valve and a retard check valve. The advance check valve restricts an operating oil flow flowing from the advance chamber to the supply port and permits an operating oil flow flowing from the supply port to the advance chamber when the advance chamber communicates with the supply port. The retard check valve restricts the operating oil flow flowing from the retard chamber to the supply port and permits the operating oil flow flowing from the supply port to the retard chamber when the retard chamber communicates with the supply port. When a rotational phase of the camshaft is held at a target phase region, the advance chamber and the retard chamber communicate with the supply port respectively.

The invention relates to a five-level ANPC (Active Neutral-Point-Clamped) converter, particularly to a suspended capacitor voltage control method of the five-level ANPC converter. The suspended capacitor voltage control method comprises the following steps of applying SHEPWM (Selective Harmonic Elimination Pulse Width Modulation) pulse waves to the five-level ANPC converter; performing real-time detection on a suspended capacitor voltage value of the five-level ANPC converter, performing comparison on the suspended capacitor voltage value and a reference value of the suspended capacitor voltage and determining whether a suspended capacitor needs to be charged or discharged; detecting whether the load current of the five-level ANPC converter is positive or negative and selecting the redundancy switch state which is suitable for the ANPC converter according to the positive or negative load current of the five-level ANPC converter and the determined charging and discharging state required by the suspended capacitor; performing charging and discharging on the suspended capacitor of the five-level ANPC converter through the selected switch state until that the variable quantity of the suspended capacitor voltage is zero within a sampling period and performing repeated detection on the suspended capacitor voltage value. According to the suspended capacitor voltage control method of the five-level ANPC converter, the appropriate redundancy switch state is selected according to the direction of the load current and the size of the suspended capacitor voltage so as to enable the suspended capacitor voltage to be fluctuated within a small range.

A base engine torque generated with an estimated intake air amount is estimated. An engine torque is corrected by correcting an ignition timing based on a difference between a required engine torque and the base engine torque. A torque correction amount is calculated based on a correction amount of the ignition timing. An actual engine torque is estimated based on the calculated torque correction amount and the base engine torque. A permitted component driving torque is a difference between the actual engine torque and the required vehicle driving torque. A component is controlled based on the permitted component driving torque.

Pixels have a photodiode 1, a transfer gate electrode 2 for transferring charges accumulated in the photodiode 1, a floating diffusion section 3 for accumulating the charge transferred by the transfer gate electrode 2, an amplification transistor 15 in which a gate electrode is connected to the floating diffusion section 3, and a reset transistor 14 for resetting a potential of the floating diffusion section 5. A gate length of the amplification transistor 15 is shorter than a gate length of a transistor, among transistors comprising the peripheral circuitry region, whose gate insulating film thickness is a same as a gate insulating film thickness of the amplification transistor 15 and which has a minimum gate length.

The invention relates to velocity planning technologies for numerical control systems, in particular to an NURBS curve high-speed prospective interpolation method. The method comprises the steps that on the basis of the curve self-adaptive interpolation technology, S-type velocity planning is adopted, and the kinematics formulas of the jerk, the acceleration, the feedrate and the interpolation distance of a self-adaptive deceleration area in the interpolation process are obtained; a data structure of data stored in a prospective window in the interpolation process is obtained; the prospective window is established, and the minimum value of the prospective window is obtained; the length of the backtracking distance in the prospective process is determined, and expressions of the acceleration and the jerk in the backtracking process are established; a curve is interpolated, and the data in the prospective window are adjusted dynamically after interpolation every time until interpolation is completed. By the adoption of the method, fluctuation of the acceleration and the jerk can be effectively controlled, the processing quality is ensured, the length of the backtracking distance can be accurately determined, the interpolation time is shortened, and the interpolation efficiency is improved.

A portable timepiece has a pipe extending from a case and a winding stem for transmitting a rotational force to a timepiece movement in the case. A crown is connected to the winding stem for rotational movement therewith and for detachable engagement with an outer periphery of a male threaded section of the pipe to prevent unintentional rotation of the crown. The crown has a crown shaft for rotating the winding stem, a crown head having a female threaded section for threaded engagement with the male threaded section and mounted for undergoing rotation to rotate the crown shaft in a state in which the engagement between the male and female screw sections is released. A clutch couples together the crown shaft and the crown head to prevent rotation of the crown shaft in a state in which the male and female threaded sections are engaged with one another and couples the crown shaft and the crown head to allow the crown shaft to rotate during rotation of the crown head in a state in which the male and female threaded sections are not engaged with one another.

A system and method to distribute computation for an exchange in which advertisers buy online advertising space from publishers. The exchange maintains submarkets, each containing a subset of the ad calls supplied by publishers and a subset of the offers and budgets representing demand from advertisers. Portfolio optimization techniques allocate the supply of ad calls from publishers over the submarkets, with the goal of maximizing profits for publishers while limiting the volatility of those profits. Portfolio optimization techniques allocate the demand from advertisers over the submarkets, with the goal of maximizing return on investment for advertisers. The exchange re-allocates supply and demand over submarkets periodically. Also, periodically, the most effective submarkets are replicated and the least effective submarkets are eliminated.

The liquid container has substantially rectangular parallelepiped shape having a bottom face that is situated at bottom when the liquid container is attached to the liquid consuming apparatus, and a first side face that is substantially orthogonal to the bottom face. The liquid container pertaining the second mode comprises a liquid storage portion that stores a liquid, a liquid feed portion that is situated downstream from the liquid storage portion and that feeds the liquid to the liquid consuming apparatus, and an air introduction portion that is situated upstream from the liquid storage portion and that introduces air into the liquid storage portion from an upstream side in association with feed of the liquid to the liquid consuming apparatus. The liquid storage portion includes a first liquid storage chamber having a first storage chamber bottom face situated at bottom, a first upstream opening situated along the first storage chamber bottom face, and a first downstream opening situated along the first storage chamber bottom face, a second liquid storage chamber that is situated further downstream from the first liquid storage chamber and that includes a second storage chamber bottom face situated at bottom, a second upstream opening situated along the second storage chamber bottom face, and a first downstream opening situated along the second storage chamber bottom face, and a connecting flow channel disposed between the first downstream opening and the second upstream opening so as to connect the first liquid storage chamber with the second liquid storage chamber. The first upstream opening, the first downstream opening, the second upstream opening, and the second downstream opening are juxtaposed in proximity to the bottom face of the liquid container. The first storage chamber bottom face slopes so as to be lower towards the juxtaposed first upstream opening and first downstream opening with the container attached to the liquid consuming apparatus. The second storage chamber bottom face slopes so as to be lower towards the juxtaposed second upstream opening and second downstream opening with the container attached to the liquid consuming apparatus.

The invention provides a three-point mutual wrapping and winding type spun yarn evening and ordering device and method. The three-point mutual wrapping and winding type spun yarn evening and ordering device comprises a three-point mutual wrapping and winding mechanism. The three-point mutual wrapping and winding mechanism comprises a fixing frame, a stepping motor, a worm, a drive gear, a first transmission gear, a first winding and pasting roller, a second transmission gear, a second winding and pasting roller, a third transmission gear, a third winding and pasting roller and a first yarn guiding hook. The worm on the stepping motor is coupled with the drive gear, and the first winding and pasting roller is sleeved with the first transmission gear. The second winding and pasting roller is sleeved with the second transmission gear. The third winding and pasting roller is sleeved with the third transmission gear. The drive gear drives the first transmission gear, the second transmission gear and the third transmission gear to rotate. The three-point mutual wrapping and winding mechanism is additionally arranged on a ring spinning frame, the fluctuation of an air ring is effectively controlled, a spun yarn is stabilized to be evenly output, the silver evenness is improved, and the yarn quality is improved.

The invention relates to a spinning device based on improved ring spinning and used for auxetic composite yarn with a uniform wrapping angle. The composite yarn is formed through spiral wrapping of core yarn and wrapping yarn at a certain diameter ratio and modulus ratio. The spinning device comprises a yarn supply mechanism, a drafting mechanism, and a twisting and winding mechanism and is characterized by further comprising a yarn feeding control mechanism and a wrapping angle control mechanism which are added on the basis of a traditional ring spinning machine, wherein the yarn feeding control mechanism comprises a core yarn feeding control mechanism and a wrapping yarn feeding control mechanism. The core yarn feeding control mechanism is main used for providing active feeding of core yarn and the wrapping angle control mechanism is located in front of and under front rollers to control an output angle of the wrapping yarn, so that auxetic composite yarn with a certain wrapping angle and a uniform, controllable and stable wrapping structure can be obtained. The spinning device is improved from a traditional ring spinning machine, has the advantages of easy operation of a spinning method, convenient implementation and low cost, and is suitable for continuous production, promotion and application.

A colloidal solution of fine particles of metal or alloy having an average grain size of 10 nm or more is provided which is heat treated to cause coloration, or a metal colloidal pigment having inherent color, a conductive paste material or a conductive ink for printed substrate electronic parts or the like based on a colloid prepared by dispersing fine metal particles at high concentration in a liquid is provided.

In a patterned perpendicular magnetic recording medium, embodiments of the present invention provide a magnetic head in which magnetic field to be applied to adjacent tracks can be suppressed and a recording device equipped with the magnetic head. In one embodiment of the present invention, a sum of a width Pw of a main pole of a magnetic head and distances between right and left magnetic substances on a width-directional side of tracks and the main pole, so-called widths of side gap lengths s_g1—1 and s_g1—2 is, in a magnetic recording medium having a soft-magnetic underlayer, made to be not more than a sum of a width w_land of a convexity or land of the soft-magnetic underlayer and widths w_groove—1 and w_groove—2 of concavities or grooves adjacent to the land on both its sides.

To provide a portable watch in which a crown can be held so as not to be turned carelessly utilizing engagement of screws without being restricted by a function of a watch movement, durability is improved, and a screw lock operation for the crown is light. The present invention is premised on a portable watch in which a crown, which is connected to a winding stem transmitting a turning force to a watch movement in a case band, is engaged with a male screw section of a pipe attached to the case band, whereby a crown is held so as not to be turned. The crown includes: a crown shaft that moves the winding stem in association with the crown shaft; a crown head that turns the crown shaft in a state in which the engagement is released; and clutch. The crown head has a female screw section that is detachably engaged with the male screw section. The clutch couples the crown shaft and the crown head so as to prevent the turn of the crown shaft in a state in which the engagement is completed, and couples the crown shaft and the crown head so as to make it possible to turn the crown shaft following the crown head in a state in which the engagement is released.

The present invention discloses a video denoising system based on noise correlation, said system comprises a unit for estimating correlation of noises of adjacent pixels, which receives input of the inter-frame difference and motion probability, and estimates correlation of noises of adjacent pixels according to correlation of inter-frame differences between adjacent pixels in a still region, and outputs a noise correlation coefficient; a maximum filtering weight adjusting unit, which adaptively adjusts the maximum weight for temporal filtering according to the noise correlation coefficient and outputs the maximum weight for temporal filtering; the maximum weight for temporal filtering can control the range of fluctuation of the temporal filtering weight and the difference between the denoising effects for different pixels. The system of the present invention can solve the problem of “speckle” noise occurred when the video noises have adjacent correlation in the conventional temporal denoising system for videos.

A method of designing a thermally-assisted magnetic recording apparatus having a magnetic recording medium, a heater and a magnetic head includes, determining a stable retention time tst for recorded magnetization and a thermal-fluctuation stability coefficient βst calculated from β(T)=KuV / kBT, where Ku is a magnetic anisotropy energy density, V is an activation volume, and kB is Boltzmann's constant, obtaining an equivalent degradation time tEQ calculated from tEQ=Σ(ΔtEQ), that sums values of ΔtEQ within a period of time Δt for a time span during which the medium is substantially degraded, where ΔtEQ=exp(ln(Δt)−β−βst) and β is a thermal-fluctuation stability coefficient for a medium temperature T in Δt, and determining specifications of the medium, the heater and the magnetic head in a manner to meet the relationship of tEQ<tst.

There is provided a valve gear of an internal combustion engine, comprising a cam mechanism for converting rotational motion of an electric motor into linear motion to drive a valve for opening and closing a cylinder against a valve spring, and a torque reduction mechanism for adding an opposite torque, which serves so as to reduce a torque applied to the cam mechanism from the valve spring at the time of driving the valve, to the cam mechanism.