156results about How to "Even load distribution" patented technology

The present invention describes an expandable vertebral implant and the method of use. The longitudinally expandable vertebral implant includes telescoping sections adapted for incremental expansion and ease of securement at any desired increment in situ, and constructed and arranged to engage opposing vertebrae. The corpectomy device is a distractible vertebral body replacement for the thoracic and lumbar spine. The device is cylindrical shaped having an inner and outer sleeve made adjustable by use of locking pads formed integral with the outer sleeve for use in engaging parallel circumferential locking grooves formed along the outer side surface of the inner sleeve.

The invention relates to wireless self organized network energy saving needed route method based on ant colony optimization. The route building includes the following steps: broadcasting state information of asking ant to search network and store in each node reverse information pheromone list; responding the anti while receiving the request and selecting one neighbor node as the next step reverse source node; building the route from the source node to destination node. The route maintenance is that energy parameter is inducted; and new route finding process will be forced to do to avoid node from dying untimely while node energy consumption is overmuch.

The invention discloses an electric vehicle charging real-time optimization dispatching method. The technical scheme adopted by the invention is as follows: Net-Electrified Transportation CooperativeSystem Architecture Based on Vehicle Interaction; A micro traffic assignment model based on travel chain tracking is established to track and simulate the real-time information of driving behavior, location distribution, state of charge and charging demand of electric vehicle users. Charging station selection and navigation strategy; A two-layer real-time optimal dispatching model is constructed to determine the specific charging scheme of electric vehicles in each charging station, which takes into account the safety of distribution system and the waiting time of users. YALMIP/CPLEX efficientcommercial solver is used to solve the upper and lower level problems iteratively. The invention can not only alleviate the traffic jam near the charging station; But also can make the load distribute evenly, reduce the network loss and ensure the safe and economical operation of the power network; Also can meet the EV charging demand, improve customer satisfaction, and ultimately achieve the overall optimization of electrified transportation system operation, taking into account the interests of many aspects.

A lithographic projection apparatus including a radiation system for providing a projection beam of radiation; a support structure for supporting a patterning device, the patterning device serving to pattern the projection beam according to a desired pattern; a substrate holder having a plurality of protrusions, the extremities thereof defining a substantially flat plane of support for supporting a substantially flat substrate, the substrate holder provided with the ability to provide a pressing force for pressing the substrate against the extremities of the protrusions, the protrusions in an edge zone of the substrate holder arranged to provide a substantially flat overhanging of the substrate in relation to the pressing force of the pressing means; and a projection system for projecting the patterned beam onto a target portion of the substrate. The lithographic projection apparatus is characterized in that the protrusions in an off-edge zone of the substrate holder are distributed so as to provide a substantial equal supporting area for each protrusion of the plurality of protrusions, the supporting areas being defined by a Voronoi diagram distribution associated to the protrusions. The lithographic apparatus offers a substrate holder with a reduced overlay and focus error.

The invention relates to a converter gearing, comprising a gear rim (7), which is connected to the pivoting axis (6) of a converter box, said gear rim being engaged with at least one drive pinion (8) of the converter gearing (9) and at least one locking device, which can be pivoted to engage with and be disengaged from the toothed gearing of the gear rim, (7) in the form of a locking arm (12) that is positioned on a horizontal shaft (10) and configured with toothed gearing (11). The aim of the invention is to improve said locking device. To achieve this, the shaft (10) of the locking arm (12) is mounted in at least one terminal bearing (13, 13′) and the locking arm (12) can be engaged with and disengaged from the toothed gearing of the gear rim (7) in a non-positive manner, preferably by means of active force elements (14, 14′) in its end regions. In addition, the shaft (10) of the locking arm (12) is mounted in the housing of the converter gearing (9) by means of two eccentric bushes (4, 5), which rotate freely within one another, at each of its ends. The mounting is configured in such a way, that by the independent rotation of the same, an ideal mutual engagement position of the two interacting toothed gearing regions of the locking device (12) and the gear rim (7) can be set.

A mold assembly has two mold half shells each having an outer and inner wall for defining the shape of a container to be formed. Two mold half carriers each have an inner wall overlaying and spaced from a corresponding mold shell outer wall for supporting the shells in the assembly. At least one insulating pad is sandwiched between the inner wall and the corresponding outer wall and is secured to one of the inner wall and the outer wall. The pad supports the outer wall in non-contacting and buffering relation relative the carrier inner wall. Each pad may be secured in a recessed seat in the respective wall. Pads may be secured in recessed seats having a depth less than the thickness of the pad. Pads absorb mold operational forces to reduce wear, reduce conduction from shell to carrier and facilitate the use of different-sized shells with one carrier.

The invention discloses a power distribution network centralized feed line automatic fault processing method. The method comprises the following steps: step one, positioning faults, i.e., according to fault information detected by each distribution terminal or each fault indicator, through combination with fault information of a transformer station, starting a fault processing program, and determining fault types and occurrence positions; step 2, generating fault strategies, i.e., a master station generating two or more than two accident isolation and power supply recovery operation schemes; and step three, processing the faults, i.e., based on the fault strategies generated in the second step, carrying out remote-control execution and assisting in displaying corresponding results, such that the purposes of rapid fault isolation and power supply recovery are realized, the fault positioning accuracy of a power distribution network is improved, the fault processing time of the power distribution network is shortened, fault recovery of the power distribution network is optimized, and the technical effect of fundamentally improving the power supply reliability of the power distribution network is achieved.

A system for regulating the voltage in an electrical distribution system includes a plurality of flywheels, motor/generators, and controllers. Each of the motor/generators is coupled to one of the energy storage flywheels and to the electrical supply system. The motor/generators each supply one or more signals representative of motor/generator operational parameters, and each motor/generator controllers receive one or more of the motor/generator operational parameter signals from each of the motor/generators. In response to the operational parameter signals, the motor/generator controllers each control the operation of one of the motor/generators in either a motor mode or a generate mode, to thereby regulate the electrical supply system voltage and equally share the electrical load between the motor/generators.

The invention relates to a power distribution network optimization method adapting to power distribution network high capacity load transfer, comprising steps of analyzing a load fluctuation curve of a regional power distribution network and a complementary load characteristic curve of the regional power distribution network and an adjacent power distribution network of, obtaining the two characteristics of the power distribution network high capacity load transfer which are that the load fluctuation of the regional power distribution network is relatively big and the complementarity of the adjuacent regional power distribution network is strong, determining the characteristics satisfied by the characteristics of the power distribution network load, if two above characteristics are both satisfied, adopting a spatial transfer optimization method to optimize, if only the characteristic that the load fluctuation of the regional power distribution is big is satisfied, adopting the time transfer optimization to optimize. The power distribution network optimization method adapting to power distribution network high capacity load transfer groups the power distribution network high capacity load transfer into two categories, enables the distribution of the load to be more balance, improves the power distribution network planning and the operation level, has the directive significance, and improves the capability of the power distribution network to deal with the high capacity load transfer.

The invention discloses a spine central keel full-bearing vehicle body, wherein the central keel comprises a driver zone floor framework, a front suspension zone framework, a middle piece framework, a rear suspension zone framework and an engine zone framework; the middle piece framework comprises a passenger floor framework, a storage room floor framework and a framework for connecting an upper floor and a lower floor; and the framework for connecting the upper floor and the lower floor is a planar frame which is composed of an upper beam, a lower beam, a plurality of longitudinal beams and a plurality of inclined struts, and the longitudinal beams and the inclined struts are arranged between the upper beam and the lower beam. In the invention, the frameworks symmetrically arranged on both sides of the keel are moved towards the middle to combine a planar trussed construction arranged on the left and right symmetric surfaces of the vehicle body, thus the truss arranged on the left and right symmetric surfaces of the vehicle body has no influence on the volume of the middle piece storage room with left and right openings no matter the inclined struts are provided or not. Therefore, the strength, the rigidity and the security of the vehicle body are greatly enhanced, and the utilization ratio is improved.

A multi-layer seal system for a manifold (10) of a proton exchange membrane fuel cell includes a silicone rubber filler layer (22) between endplates (9) to compensate for the uneven edges of cell elements, an elastomer gasket (15) disposed within a groove (24) in the contact surfaces of a manifold (10), and a rigid dielectric strip (40) coplanar with the contact surfaces (17) of the endplates (9) interposed between the silicone rubber filler layer (22) and the gasket (15). The rigid dielectric strip (40) may be either angled (40a) for a corner seal, or flat (40b).

The invention relates to an air electrode of a zinc-air battery; the air electrode is molded by compression of a catalysis layer, a diffusion layer and a current collector; a catalyst in the catalysis layer is a TiO2/AC catalyst. The TiO2/AC catalyst is prepared by the following method: processing active carbon by dilute nitric acid with a volume concentration of 10%, filtering, washing with distilled water for several times, drying, grinding, sieving, performing a hydrolysis reaction with a titanium tetrachloride solution with a mass ratio of 2-7.6 times of the active carbon at 0 DEG C-5 DEG C, calcining the reaction product at 400 DEG C-800 DEG C, cooling to room temperature, and grinding. Compared with the prior art, the catalyst used by the air electrode of the invention has a simple preparation method, and low price; and with the catalyst, the current density of the air electrode is well increased.

The invention aims at reducing the energy consumption problem resulting from network reconstruction and providing an expandable wireless sensor network clustering method. In a selection process of candidate cluster heads, the residual energy of nodes in the network is taken into consideration; and in the selection process of cluster heads, factors such as the residual energy of candidate nodes, the number of neighbor nodes of the candidate cluster heads and the value degree from each node to the candidate cluster heads are taken into consideration, so a life cycle of the network can be prolonged. When the average energy in clusters is greater than certain threshold, re-clustering does not need to be carried out in a whole network range, and the new cluster heads are only selected in the clusters. When new nodes add the network, network access permission values are introduced, the clusters to which the nodes need to add are selected by taking position distribution of the nodes, the energy of the cluster head nodes and load values of corresponding clusters into consideration.

The invention discloses a load balancing method, device and system for a server cluster and a memory medium. The method comprises the steps that a gate server obtaining server load distribution in theserver cluster in response to a received server login request sent by a client; servers satisfying a load demand are selected from the server cluster according to the server load distribution; and port information of the selected servers is sent to the client. According to the method, the device, the system and the memory medium, the servers satisfying the load demand are selected according to the server load distribution in the server cluster and are used for the client to be connected with, so the servers in the server cluster can be reasonably allocated and the load distribution balance ofthe server cluster can be realized.

The invention aims at reducing the energy consumption resulting from network reconstruction and providing an expandable wireless sensor network networking method. The residual energy of nodes in a network is taken as a selection standard of candidate cluster heads; factors such as the residual energy of candidate nodes, the number of neighbor nodes of the candidate cluster heads and the value degree from each node to the candidate cluster heads are taken into consideration. When the average energy in clusters is greater than certain threshold, re-clustering does not need to be carried out in awhole network range, and the new cluster heads are only selected in the clusters. When new nodes add the network, network access permission values are introduced for judging which clusters the nodesadd. The new network access nodes send data through utilization of reserved time slots without waiting for termination of each cluster period, and the cluster heads do not need to redivide time slots.