34results about How to "Reduce the possibility of instability" patented technology

Provided are a wavy woven latticed shell structure and a construction method thereof. A latticed shell is of a wavy woven frame structure and comprises wavy longitudinal main rods parallelly distributed at intervals, oblique main rods, auxiliary oblique main rods, longitudinal keels, oblique keels and auxiliary oblique keels, wherein the oblique main rods and the auxiliary oblique main rods crossly connected with the longitudinal main rods, tree-shaped columns are connected under wave trough positions of the latticed shell, and the wave trough positions of the latticed shell are communicated with the insides of the tree-shaped columns. The latticed shell is wholly annular, an inner ring and an outer ring of the latticed shell are correspondingly provided with an outer seal edge beam and aninner seal edge beam. During construction, the latticed shell is manufactured and spliced in a unit way, the latticed shell and the tree-shaped columns can also be separately manufactured and then are hoisted to form a complete latticed shell structure. By adopting the design of the wavy structure, the overall attractive appearance and ornamental value of the latticed shell structure are increased. In addition, the change of wave peaks and troughs of the latticed shell can effectively increase indoor local clearance height. By arranging tod pieces and constraints in the latticed shell structure, the structural integrality is improved.

A need identifying device, an air-conditioning controlling system, a need identifying method and an air-conditioning controlling method provided by the invention can reduce the likelihood of destabilization of control while reducing the burden of need reporting on behalf of the informants. The need identifying air-conditioning controlling system (1) includes a need identifying device (5), a control plan storage device (4) that stores, respectively for a temporary need and a persistent need, control plans that establish rules for changing a control setting value for air-conditioning in response to a need relating to air-conditioning from an informant, a control plan determining device (3) that determines a control plan corresponding to an identification result of the need identifying device, as a control plan to be applied to an air-conditioning equipment (6), and an equipment controlling device (2) that controls the air-conditioning equipment based on the determined control plan. The need identifying device includes an inputting unit that receives the need from the informant, and a need identifying unit that identifies whether the need is the temporary need or the persistent need, based on information pertaining to an activity that changes a metabolic rate of the informant.

The invention discloses an expansion joint with a displacement real-time monitoring function and large displacement compensation. The expansion joint comprises a corrugated pipe assembly, wherein an online monitoring assembly is assembled on the outer side of the corrugated pipe assembly; two proportional connecting rod assemblies are symmetrically assembled on the periphery of the corrugated pipeassembly; a plurality of screw rod assemblies are assembled on the periphery of the corrugated pipe assembly; and the screw rod assemblies are distributed in a circumferential mode. According to theexpansion joint, the requirements of large displacement compensation and high fatigue life can be met, meanwhile, the possibility of product instability is greatly reduced, meanwhile, the compensationdisplacement of two corrugated pipes can be uniformly distributed and implemented, screw threads can be effectively protected, the thread abrasion is reduced, and the real-time online monitoring of the displacement amount of a product, namely axial displacement, transverse displacement and angular displacement, can be effectively realized.

The invention relates to an underground pile foundation construction engineering design method, which is characterized by comprising the following steps of S1, early-stage design; S2, foundation investigation and foundation model selection; S3, pile size design; S4, calculating a pile foundation; S5, pile foundation design; S6, pile foundation calculation sheet compiling, and pile foundation planearrangement diagram, pile foundation bulk sample design diagram, drilling plane arrangement diagram and geological longitudinal section and pile bottom elevation design diagram drawing; and S7, pilemanufacturing, pile foundation driving and pile splicing. The underground pile foundation construction engineering design method is high in practicability, the manpower and material resource cost canbe effectively reduced, the construction efficiency is improved, the construction period is shortened, and the underground pile foundation designed through the design method is better in stability, higher in stress resistance and bearing capacity and low in possibility of deformation or instability; redundancy of structural bearing capacity and waste of materials are avoided, the construction costis lower, and the quality is better.

Provided are a wavy woven latticed shell structure and a construction method thereof. A latticed shell is of a wavy woven frame structure and comprises wavy longitudinal main rods parallelly distributed at intervals, oblique main rods, auxiliary oblique main rods, longitudinal keels, oblique keels and auxiliary oblique keels, wherein the oblique main rods and the auxiliary oblique main rods crossly connected with the longitudinal main rods, tree-shaped columns are connected under wave trough positions of the latticed shell, and the wave trough positions of the latticed shell are communicated with the insides of the tree-shaped columns. The latticed shell is wholly annular, an inner ring and an outer ring of the latticed shell are correspondingly provided with an outer seal edge beam and aninner seal edge beam. During construction, the latticed shell is manufactured and spliced in a unit way, the latticed shell and the tree-shaped columns can also be separately manufactured and then are hoisted to form a complete latticed shell structure. By adopting the design of the wavy structure, the overall attractive appearance and ornamental value of the latticed shell structure are increased. In addition, the change of wave peaks and troughs of the latticed shell can effectively increase indoor local clearance height. By arranging tod pieces and constraints in the latticed shell structure, the structural integrality is improved.

The invention relates to a demand discrimination device and a discrimination method, an air conditioner control system and a control method. The demand discrimination type air conditioner control device (1) has: a demand discrimination unit (5); an occupancy state management unit (6); a control scheme storage unit (4) for storing control schemes in advance for temporary demand and continuous demand respectively, the A control plan is determined according to a rule for changing a control setting value of an air conditioner according to a demand from the declarer; and a control plan corresponding to a judgment result of the demand judging unit (5) is determined to be suitable for the control of the air conditioner (7). A control plan decision unit (3) for the plan; and an equipment control unit (2) for controlling the air conditioner (7) based on the control plan. A demand determination unit (5) determines whether the demand from the reporter is a temporary demand or a continuous demand based on information on actions to stabilize the amount of metabolism of the reporter. The occupancy status management unit (6) manages the occupancy information of the notifier as information on actions to stabilize the metabolic rate of the notifier.

The invention relates to a double-layer steel plate combined shear wall for binding of corrugated web I-steel members in staggered arrangement, and belongs to the field of structural engineering. Thecombined shear wall consists of a double-layer steel plate shear wall and integrally poured concrete, wherein the double-layer steel plate shear wall is formed by a plurality of first steel plate shear wall units and a plurality of second steel plate shear wall units through crossed welding shaping. The corrugated web I-steel members in the adjacent steel plate shear wall units are in staggered arrangement in the length direction of an outer side steel plate; the integral buckling mode of the wall is changed; and the integral buckling of a wall body is changed into local buckling of the partial wall body units, so that the bearing force is effectively improved. A corrugated web cannot generate unstability when being pressed; the connection performance of corrugated webs and wing edges whenthe wall body is pressed is effectively ensured; the connection performance of the corrugated web I-steel members and the outer side steel plate is further ensured; and the integral stability of thestructure is obviously improved. The corrugated webs can be made to be high and thin, so that elastic buckling loads of plate members between unit lattices can be similar, and the economical efficiency of a steel plate shear wall is effectively improved.

A shield machine receiving steel platform and its installation method, including a column system standing on the foundation, an inter-column support system and a receiving module system, the column system includes a group of columns, and each column includes a base column that is sequentially centered and docked unit, at least one layer of extended column group and top support column unit, the base column unit is a conversion short column, the extension column group is composed of a conversion short column on the upper side and a long column on the lower side, and the top support column The unit is a short column at the top of the column, the inter-column support system includes a set of horizontal connecting beams, a set of inclined connecting beams and a set of inclined supporting beams, and the receiving module system includes a set of panel units. The receiving steel platform of the shield machine of the present invention adopts detachable connection, each unit component is prefabricated and processed in the factory, the utilization rate of the mechanical properties of the column system is improved, and the possibility of instability is reduced.

The invention belongs to the technical field of pesticides, and in particular relates to a low-temperature anti-degradation manufacturing method for a small-particle-diameter suspending agent. The present invention includes step 1: adding the original drug to be ground into a jet mill, and obtaining the original drug powder after the grinding is completed; step 2: transferring the original drug powder obtained in step 1 to a pipeline crushing pump, adding auxiliary agent and water, start the pipeline crushing pump for crushing, and obtain the original drug mixture after the crushing is completed; Step 3: transfer the original drug mixture in step 2 to a sand mill for grinding, and sieve after grinding to obtain a suspending agent. The present invention is crushed by a jet mill first, then pulverized by a pipeline pump for the second time, and finally sanded, which effectively reduces the time and frequency of sanding, reduces the temperature of the material after sanding, and reduces the risk of the original drug due to temperature rise. The possibility of degradation and product instability caused by it can also effectively prevent the blockage of the sand mill caused by the original drug being too coarse, and reduce the load of the sand mill.

There is provided a method (500) for operating a renewable energy power plant (12) comprising a plurality of renewable energy generators (14), the method (500) comprising: calculating (502) a rate of change of reactive power reference level for transitioning between a present reactive power reference level, output by a reactive power controller (206), and a target reactive power reference level, the target reference level being suitable for normal operation of the renewable energy power plant (12); and, following a fault on a power network to which the renewable energy power plant (12) is connected, dispatching (506) a control signal for controlling the renewable energy power plant (12) to generate or consume reactive power at the calculated rate of change to transition the reactive power level of the renewable energy power plant (12) to the target reactive power reference level.

The invention relates to a double-layer steel plate combined shear wall with corrugated web plate I-shaped steel components in truss type binding, and belongs to the field of structure engineering. According to the combined shear wall, multiple steel plate shear wall units are firstly welded to form a pure steel plate wall, and then concrete is poured between steel plates to form the double-layersteel plate combined shear wall with the corrugated web plate I-shaped steel components in truss type binding. The corrugated web plate I-shaped steel components are applied into the wall structure, the buckling mode of the whole wall is changed, overall buckling of the wall becomes into partial buckling of part of the wall, and bearing force is effectively improved. The corrugated web plate I-shaped steel components are introduced into the double-layer steel plate combined shear wall, web plates of the corrugated web plate I-shaped steel components and outer steel plates directly participatein the resisting side of the shear wall, meanwhile, flanges of the corrugated web plate I-shaped steel components achieve an obvious binding function on the outer steel plates, and the anti-shear bearing force of the wall is improved. A truss type structure is formed by the outer steel plates, the corrugated web plate I-shaped steel components and tie bars, and the overall stability of the wall isenhanced.

The invention discloses a coordinated recovery control method after multi-infeed direct current system failure, and belongs to the technical field of electrical power system running control. According to the method, a coordinated recovery strategy after system failure is used, incremental current recovery is conducted according to recovery strength of the multi-infeed direct current power of all direct current subsystems in the system, and during the calculation of the recovery strength of the multi-infeed direct current power, the transmission power of all the direct current subsystems, the strength of a multi-infeed receiving end alternating current system, the structure of a multi-infeed direct current system and the interaction of all the direct current subsystems are integrated into consideration. Accordingly, the transient stability of the system in the restoration stage after failure is effectively improved, and the possibility that subsequent commutation failure and even the system voltage destabilization occur in the restoration stage is greatly reduced.

The invention relates to the field of semiconductor testing, and discloses a semiconductor testing device, which is characterized in that it includes an electric control module, a test module, an air source circuit, and a heat dissipation module arranged on a rack; the test module includes a BIB test board and a SITE The power supply and signal board, the BIB test board and the SITE power supply and signal board are respectively hard-docked with the FT intermediate connection board wireless material; the front of the BIB test board is provided with a device to be tested, and the back of the BIB test board is connected with The test core board, the air source circuit is set facing the test core board, and the heat dissipation module is set right facing the BIB test board for cooling the BIB test board. The invention provides a complete set of testing equipment for high-speed DUTs, realizes high-speed bus testing, and solves the problem of device heat dissipation in the testing process.

The invention provides a power storage device and a method of restarting an engine of an idle stop vehicle. The power storage device (1) supplies power to a starter and an auxiliary engine for starting an engine of an idle stop vehicle, the power storage device (1) being provided with a power storage element (12), a measurement unit (current sensor 51) for measuring a physical quantity relating tothe amount of voltage drop in the power storage element (12), and a management unit (55) for managing the power storage element (12), the management unit (55) performing: estimation processing (S101-S104); estimating the minimum voltage of the power storage element (12) during restart of the engine on the basis of the physical quantity at a given point in time during idle stop; and a notificationprocess (S106) for notifying the idle stop vehicle of a restart request for the engine when the minimum voltage is less than a prescribed threshold value (S105: YES).

The invention discloses an L-shaped partially-prefabricated composite beam, and a construction method and application thereof, and belongs to the technical field of buildings. The composite beam givesfull play to the performance of steel and concrete materials. Concrete is packed in profile steel, the constraint effect on the concrete is enhanced due to the existence of the profile steel, and thepossibility of local buckling or overall instability of the profile steel is reduced due to the existence of the concrete, so that the bearing capacity of the composite beam is improved, and meanwhile, the purpose of reducing the section size of the composite beam is achieved. The web plate of the composite beam is a corrugated plate with higher shear strength, and the constraint effect on concrete is greatly improved due to higher lateral rigidity of the web plate. Aiming at the bonding among second precast concrete, cast-in-place concrete and H-shaped steel, the composite beam adopts a modeof punching a shear key on the web plate of the H-shaped steel, so that the shear key is partially arranged in the second precast concrete, and the shear key is partially arranged in the cast-in-place concrete, thereby ensuring co-working of the concrete and the concrete and co-working of the steel and the concrete.

The invention discloses a multi-rotor folding unmanned aerial vehicle, which comprises an unmanned aerial vehicle body; A positioning groove is provided on the upper surface of the wing, and a helical column is inserted into the positioning groove, and the positioning groove and the helical column are fixedly connected by fixing bolts, and the surfaces of the fixing bolts are respectively sleeved with a first gasket and a second gasket. The multi-rotor folding UAV of the present invention achieves the effect of rotating and folding the wings of the UAV, reduces the volume occupied by the UAV, and achieves the effect of rotating and folding the helical wing, thereby reducing the volume occupied by the helical wing. It can lubricate the rotating balls and balls in the rotating chamber and enhance the flexibility, so that the folding effect of the spiral wing is better, and it can effectively avoid the problem that the rotating ball cannot be positioned stably after rotating and unfolding, thus solving the problem of multi-rotor UAV transportation When the fuselage is damaged due to its large size.

The invention relates to a double-layer steel plate composite shear wall with corrugated web I-shaped steel components transversely arranged in a staggered mode, and belongs to the field of structuralengineering. The combined shear wall is composed of a double-layer steel plate shear wall body formed by welding a plurality of first steel plate shear wall units and second steel plate shear wall units in a crossed mode and integrally-poured concrete. The corrugated web I-shaped steel components in the adjacent steel plate shear wall units are arranged in the length direction of outer side steelplates in a staggered mode, so that the buckling mode of a whole wall body is changed, then overall buckling of the wall body is changed into local buckling of a part of the wall body, and the bearing capacity is effectively improved; corrugated webs can be made high and thin, so that the elastic buckling loads of the plates among the cells are similar, and the economical efficiency of the steelplate shear wall is effectively improved; the corrugated webs are not unstable when being pressed, so that the connection performance of the corrugated web I-shaped steel components and the outer sidesteel plates when the wall body is pressed is effectively ensured; and the steel plate shear wall units are transversely arranged, so that the shear wall units are sequentially welded from bottom totop in the installation process, and the construction difficulty is reduced.

The invention relates to a double-layer steel plate composite shear wall with corrugated web I-shaped steel components transversely arranged in a staggered mode, and belongs to the field of structuralengineering. The combined shear wall is composed of a double-layer steel plate shear wall body formed by welding a plurality of first steel plate shear wall units and second steel plate shear wall units in a crossed mode and integrally-poured concrete. The corrugated web I-shaped steel components in the adjacent steel plate shear wall units are arranged in the length direction of outer side steelplates in a staggered mode, so that the buckling mode of a whole wall body is changed, then overall buckling of the wall body is changed into local buckling of a part of the wall body, and the bearing capacity is effectively improved; corrugated webs can be made high and thin, so that the elastic buckling loads of the plates among the cells are similar, and the economical efficiency of the steelplate shear wall is effectively improved; the corrugated webs are not unstable when being pressed, so that the connection performance of the corrugated web I-shaped steel components and the outer sidesteel plates when the wall body is pressed is effectively ensured; and the steel plate shear wall units are transversely arranged, so that the shear wall units are sequentially welded from bottom totop in the installation process, and the construction difficulty is reduced.