301results about How to "Eliminate structure" patented technology

A wind turbine capable of driving multiple electric generators having a ring or shroud structure for reducing blade root bending moments, hub loads, blade fastener loads and pitch bearing loads. The shroud may further incorporate a ring gear for driving an electric generator. In one embodiment, the electric generator may be cantilevered from the nacelle such that the gear on the generator drive shaft is contacted by the ring gear of the shroud. The shroud also provides protection for the gearing and aids in preventing gear lubricant contamination.

A method and system for fast transporting real-time media stream data package is based on the Real-time Transport Protocol/Real-time Transport Control Protocol of User Datagram Protocol for network nodes such as media gateway, Integrated Access Device (IAD) and multimedia terminal. The improvement of the system lies in the adding of an IP data package fast filter module, a UDP fast sending module and a policy ARP table process module based on local UDP port. The method involves: fast receiving the real-time media stream data package transmitted on the basis of RTP/RTCP protocol; fast sending the real-time media stream data package transmitted on the basis of RTP/RTCP protocol; and a policy ARP table based on UDP port and its refurbishing system.

The invention provides an Al-Fe-Ba-RE aluminum alloy, and a preparation method of the Al-Fe-Ba-RE aluminum alloy. The method comprises the steps that: (a) an aluminum alloy ingot is cast; (b) the aluminum alloy ingot is subjected to a homogenization treatment; and the obtained aluminum alloy ingot is rolled, such that an aluminum alloy rod material is obtained; (c) the aluminum alloy rod material obtained in the step (b) is subjected to a batch-type annealing treatment; and (d) the aluminum alloy rod material obtained in the step (c) is subjected to an aging treatment, such that aluminum alloy is obtained. The invention also provides a power cable. According to the invention, through the selection and control over added elements and the adoption of a reasonable preparation process, the obtained aluminum alloy is provided with good comprehensive performance.

The invention provides an Al-Fe-Bi-RE aluminum alloy, and a preparation method of the Al-Fe-Bi-RE aluminum alloy. The method comprises the steps that: (a) an aluminum alloy ingot is cast; (b) the aluminum alloy ingot is subjected to a homogenization treatment; and the obtained aluminum alloy ingot is rolled, such that an aluminum alloy rod material is obtained; (c) the aluminum alloy rod material obtained in the step (b) is subjected to a batch-type annealing treatment; and (d) the aluminum alloy rod material obtained in the step (c) is subjected to an aging treatment, such that aluminum alloy is obtained. The invention also provides a power cable. According to the invention, through the selection and control over added elements and the adoption of a reasonable preparation process, the obtained aluminum alloy is provided with good comprehensive performance.

The invention provides an Al-Fe-Ni-RE aluminum alloy, and a preparation method of the Al-Fe-Ni-RE aluminum alloy. The method comprises the steps that: (a) an aluminum alloy ingot is cast; (b) the aluminum alloy ingot is subjected to a homogenization treatment; and the obtained aluminum alloy ingot is rolled, such that an aluminum alloy rod material is obtained; (c) the aluminum alloy rod material obtained in the step (b) is subjected to a batch-type annealing treatment; and (d) the aluminum alloy rod material obtained in the step (c) is subjected to an aging treatment, such that aluminum alloy is obtained. The invention also provides a power cable. According to the invention, through the selection and control over added elements and the adoption of a reasonable preparation process, the obtained aluminum alloy is provided with good comprehensive performance.

The invention discloses an MEMS gyroscope robust self-adaptation control method based on neural network upper bound learning. The method includes the following steps that an ideal kinetic model and an MEMS gyroscope kinetic model are established, a sliding mode function is designed, a control law is obtained based on the sliding mode function, and an RBF neural network upper bound estimated value is used as a gain of a robust item on the basis of the control law together with a feedback item and the robust item; a parameter self-adaptation law and a network weight self-adaptation law are designed based on a Lyapunov method. According to the MEMS gyroscope robust self-adaptation control method based on neural network upper bound learning, the feedback item is added in the control law, the two-shaft vibration trajectory tracking speed and the parameter estimation speed of an MEMS gyroscope are greatly increased, and the vibration amplitude is decreased; the robust item based on RBF neural network upper bound learning is added in the control law, the buffeting problem caused by large external disturbance and fluctuation and the problem that the dynamic characteristics are changed worse are solved, the uncertainty of a structural formula and the uncertainty of a non-structured formula are eliminated, and therefore the robustness of the system is further improved.

The invention discloses a metal cyanide coordination catalyst and a preparation method and application thereof. The catalyst has the structural formula of M1a[M2(CN)bL1c]d(X)m(L2)n.xSu.yL3.zH2O. The method for preparing the metal cyanide coordination catalyst comprises the following steps of: regulating mixed solution I' which consists of L3, M3e[M2(CN)bL1c]f, deionized water I, alcohol and/or an ether solvent to have a pH value of less than 7; and adding the solution I' into mixed solution II' which consists of M1(X)g salt, Su or a Su precursor, and deionized water II, and stirring for reaction at the temperature of between 20 and 120 DEG C for 0.5 to 200 hours; and separating, drying, the repeatedly dispersing to form slurry in an anhydrous organic solvent in which L2 is dissolved, distilling, separating and drying to prepare the metal cyanide coordination catalyst. The catalyst has the advantages of porous structure of less than 100nm, presence of coordination of M1 and L2 on a chemical structure, and obvious alternative selectivity in the process of catalyzing the copolymerization of epoxide and carbon dioxide.

The compressor in a refrigeration system is controlled solely by a variable speed drive which controls the motor of the compressor by virtue of the varying of the frequency of the electricity provided to the motor. To minimize the initial cost and to minimize operating costs, the variable speed drive is cooled by refrigerant from the refrigeration system which permits the use of a smaller drive, and the variable speed drive is operated at, or approaching, a unity power factor.

There is provided switching power unit comprising: a PFC voltage detector that detects PFC voltages of the power-factor improvement unit; an output voltage detector that is provided in a current resonance converter unit; a switching controller into which output signals from the PFC voltage detector and output signals from the output voltage detector are input, wherein the switching controller in a full-bridge circuit of first to fourth switching elements, based on output signals from the PFC voltage detector and the output voltage detector, controls the PFC voltages by changing on-duty of the first and second switching elements, and also controls the output voltages by changing switching frequencies of the full-bridge circuit.

The present invention provides a support for a patient undergoing radiation therapy that preserves radiation build-up, such as normally spares the skin from receiving high amounts of radiation dose. The support includes at least one gas-filled bladder that displaces some tissue from the path of the radiation and/or spaces the tissue being treated from foam or the like.

An vehicle body framing apparatus and method for use in assembling vehicle body structures of varying vehicle types in a framing station positioned along an assembly line. The apparatus includes an overhead bridge frame that is connected to two pairs of vertical pillars positioned at a build station. One pair of the pillars is moveable to accommodate different lengths of vehicle bodies. The spaced pillars and overhead bridge provide substantially unobstructed access openings to the body sides of the vehicle to increase efficiency and quality of build. The device and method may include a bridge frame storage and transport system for remotely storing the different bridge frames not in use and then transporting a selected bridge frame to the build station for use.

The invention provides an Al-Fe-Pb-RE aluminum alloy, and a preparation method of the Al-Fe-Pb-RE aluminum alloy. The method comprises the steps that: (a) an aluminum alloy ingot is cast; (b) the aluminum alloy ingot is subjected to a homogenization treatment; and the obtained aluminum alloy ingot is rolled, such that an aluminum alloy rod material is obtained; (c) the aluminum alloy rod material obtained in the step (b) is subjected to a batch-type annealing treatment; and (d) the aluminum alloy rod material obtained in the step (c) is subjected to an aging treatment, such that aluminum alloy is obtained. The invention also provides a power cable. According to the invention, through the selection and control over added elements and the adoption of a reasonable preparation process, the obtained aluminum alloy is provided with good comprehensive performance.

The invention provides an Al-Fe-Os-RE aluminium alloy and a preparation method thereof. The preparation method comprises the following steps of: a) casting an aluminium alloy cast ingot; b) homogenizing the aluminium alloy cast ingot and rolling the homogenized aluminium alloy cast ingot to obtain an aluminium alloy rod material; c) intermittently annealing the aluminium alloy rod material obtained in the step b); and d) aging the aluminium alloy rod material obtained in the step c), thus obtaining the aluminium alloy. The invention also provides a power cable. The aluminium alloy has better overall performances by selecting and controlling the added elements and adopting a reasonable preparation process.