134 results about "Protective capacity" patented technology

The high-order code modulating method based on LDPC code comprises: mapping the bit with lower/higher protective capacity in LDPC code to the strong/weak bit with lower/higher error in high-order modulation; specially, mapping the bit with least coincident code in LDPC into the strongest bit in high-order modulation. This invention can improve bit error rate performance in high SNR internal.

The invention discloses a high-voltage ESD protective device with dual latch-up resistance and of an annular LDMOS-SCR structure. The high-voltage ESD protective device with the dual latch-up resistance and of the annular LDMOS-SCR structure can be applied to an on-chip IC. The high-voltage ESD protective device with the dual latch-up resistance and of the annular LDMOS-SCR structure comprises a P type substrate, an N type buried layer, a first P trap, a first N trap, a second P trap, a P adulterant, a second N trap, a third P trap, an isolation area, a first P+, a first N+, a second N+, a second P+, a third N+, a third P+, a fourth N+, a fourth P+, a fifth N+, a sixth N+, a fifth P+, a metal anode and a metal cathode, wherein a Zener breakdown ESD current discharging path is formed by the second N+, the second P+, the first N+ and the first P+ or by the fourth P+, the fifth N+, the sixth N+ and the fifth P+. According to the high-voltage ESD protective device with the dual latch-up resistance and of an annular LDMOS-SCR structure, the ESD robustness of the device can be improved, the maintaining voltage can be improved, and the trigger voltage can be reduced; due to the design of the annular layout of the LDMOS-SCR structure, the on resistance can be reduced, and the maintaining current can be improved; the ESD protective capacity of the dual latch-up resistance is achieved.

The invention discloses a production process for radiation-preventing polyamide yarns. The production process comprises the steps of raw material processing, drying, POY (pre-oriented yarn) preparation, DTY (draw texturing yarn) preparation, silver fiber preparation as well as grading and packaging. An antioxidant, an anti-electrostatic agent and an anti-ultraviolet aid are added in raw materials, so that the performance of finished polyamide fibers 66 is improved; nano-silver ions not only are attached on the surfaces of the polyamide yarns but also penetrate the polyamide yarns by utilizing a nano-silver ion vacuum high-energy-density beam electroplating technology; two fibers have good conductivity, so that a radiation-preventing effect can be achieved; nano-silver ions further have very good antibacterial performance, so that the produced polyamide yarns have antibacterial and radiation-preventing effects and are relatively good in protective capacity, breathable, washable and lasting in antibacterial and radiation-preventing performance; a production process from POY to DTY is used, so that the bulkiness and good elasticity of the polyamide yarns are kept, the compactness of filaments is enhanced, and the hand feel and comfort of a finished product are effectively improved.

The invention discloses a computer CPU transportation fixing device with high protective capability and relates to the field of related technologies of computers. The computer CPU transportation fixing device comprises an outer frame. A spring rod is fixedly connected to the bottom of the inner wall of the outer frame. The top end of the spring rod is fixedly connected with a cross plate. The two sides of the bottom of the cross plate both are fixedly connected with buffer devices. The two sides of the top of the cross plate both are fixedly connected with fixing devices. The top of a bottom frame is fixedly connected with the bottom of the cross plate. Sliding heads are slidably connected to the surface of the bottom frame. One side of each sliding head is rotationally connected with a connecting rod. One end of each connecting rod is rotationally connected with a base. The bottoms of the bases are fixedly connected with the bottom of the inner wall of the outer frame. The bottoms of fixing frames are fixedly connected with the top of the cross plate. By the adoption of the computer CPU transportation fixing device with the high protective capacity, the purposes of buffering and damping of CPUs are achieved, the impact on the CPUs in the transportation process is reduced, the CPUs are protected, the CPUs are prevented from being damaged and prevented from colliding with each other, the CPUs are more comprehensively protected, and the property loss is avoided.

The present invention relates to an active lactobacillus or probiotics heat and convective drying protective agent a and preparation method thereof, the drying protective agent is applied to lactobacillus or probiotics dairy products, according to the method, by increasing of calcium ions in milk, milk protein thermal aggregation is produced, and with help of high pressure, stirring and other manners, milk containing aggregated protein can be homogenized to obtain the final protective agent. The preparation method of the protective agent is simple in operation; compared with the untreated milk, the drying efficiency of the milk added with the protective agent is higher, the operation concentration of the milk or addition of other synergistic protective agent can be avoided, the cost of production can be effectively saved; at the same time, the lactobacillus or probiotics heat protection capacity and convective drying protective capacity of the drying protective agent are increased significantly.

The invention relates to a moving target protection method based on operating system fingerprint jumping. According to the method, protection is carried out in view of scanning tools used by an attacker, pointed fingerprint jumping is carried out by utilizing an operating system feature library of the scanning tools, and identification and fingerprint feature disguise for attack scanning behaviors are realized, so that the attacker cannot correctly obtain specific information of an operating system to be attacked, and then the next step of attack behavior cannot be carried out to realize network protection. In order to improve the complexity of the operating system, pointed jumping is carried out for an attacker scanning technology, the external attacker cannot obtain the specific information of an information system inside the network by deploying the technological means on an outlet network, so that the original information of the user does not need to change, and the improvement cost is avoided; meanwhile, the attacker cannot correctly obtain the information of the operating system inside the network and also cannot correctly adopt an appropriate attack method, and then the protective capacity of the information system is improved.

The invention provides a semiconductor integrated overvoltage protective device. The integrated overvoltage protective device comprises an NPN transistor, an NPNP thyristor combination, a PNP transistor and a PNPN thyristor combination, wherein the NPNP thyristor combination is controlled by the NPN transistor, the PNPN thyristor combination is controlled by the PNP transistor, the base electrode of the NPN transistor serves as a negative overvoltage reference electric potential port G- of the device, the base electrode of the PNP transistor serves as a positive overvoltage reference electric potential port G+ of the device, the anode of an NPNP thyristor is connected with the cathode of the PNPN thyristor to serve as a grounding port A of the device, and the cathode of the NPNP thyristor is connected with the anode of the PNPN thyristor to serve as an access port K of the device. The semiconductor integrated overvoltage protective device has the advantages that the positive overvoltage protective capacity and the negative overvoltage protective capacity are even, the current discharging speed is high, and the device is bidirectional and symmetrical.

The invention relates to a high-permeability oil and gas reservoir drilling and completion fluid protective capability mine field evaluating device in the oil and gas industry. The device mainly comprises a barrel, a plunger, a motor, a rotary blade, a sealing sleeve, a standard core, a pressure sensor, a fluid outlet and inlet switch, a high pressure nitrogen gas cylinder, a pressure reduction valve, a rock sample steel base, a connection pipeline, a computer and a clamping device base. In the drilling and completion fluid damage evaluation process, fluid pressure provides confining pressure for a rock sample, the drilling and completion fluid volume is a constant value, and the rock sample is prepared from target stratum outcrop. The rock sample of reservoir rock is damaged in a constant-pressure mode, and the rock sample gas log permeability damage degree is rapidly evaluated by monitoring the attenuation process of gas pressure in the barrel. The principle is reliable, operation is simple, and the gap of the high-permeability oil and gas reservoir drilling and completion fluid dynamic damage evaluating device for a mine field is filled. Drilling and completion fluid reservoir protective capacity evaluating device miniaturization is achieved, and conditions are provided for instant, timely and simple drilling and completion fluid protective capability evaluation of the mind field.

The invention discloses a multimedia teaching platform which comprises support legs. A platform tank is fixedly connected with the upper surfaces of the support legs, a first fixing plate is fixedly connected with the inner wall of the platform tank, a first bearing is fixedly connected with the inner wall of the platform tank, a first rotary shaft is fixedly connected with an inner circle of thefirst bearing, a toothed disc is fixedly connected with an end of the first rotary shaft, and a threaded pipe is fixedly connected with the upper surface of the toothed disc. The multimedia teaching platform has the advantages that a second threaded rod can clockwise rotate in service procedures, so that rollers can be driven by connecting discs to downwardly move to lift the platform tank, the support legs can be separated from the platform tank, and movement can be facilitated; the lower half portion of a computer integrated machine can be prevented from being inclined to damage the computerintegrated machine when the computer integrated machine slides into first slide grooves, the computer integrated machine protective capacity can be improved, and accordingly the problems of single function, complicated operation and deficiency of damage prevention of an existing multimedia teaching platform can be solved.

The invention discloses a pair of anti-exploding boots. Each anti-exploding boot is composed of an upper and a boot sole, wherein the boot sole is composed of an outer abrasion resistant layer, a middle anti-fragmenting layer and an inner boot lining layer sequentially from outside to inside, the outer abrasion resistant layer is of a dual-density structure which is formed by a rubber abrasion resistant layer and a thermoplastic polyurethane (TPU) layer, the middle anti-fragmenting layer comprises a composite anti-pricking layer, a front sole protection plastic steel plate is arranged between the portion, corresponding to the front sole, of the composite anti-pricking layer and the portion, corresponding to the front sole, of the TPU layer, a heel protection plastic steel plate is arranged between the portion, corresponding to the heel, of the composite anti-pricking layer and the portion, corresponding to the heel, of the TPU layer, and the inner boot lining layer comprises a polyurethane layer and an aramid fiber cloth layer from up to down. Due to the fact that the front sole protection plastic steel plates and the heel protection plastic steel plates are arranged on the boot soles and plastic steel wrapped heads are arranged on the tiptoes of the uppers, the anti-exploding boots are strong in protective capacity, light in weight, convenient to wear and good in applicability, have characteristics of sneakers, and can effectively stop and weaken shock waves and fragments generated by an explosion. The anti-exploding boots are suitable for being used as protective devices of an individual soldier and also suitable for being used for special operation by such people as exploder clearing experts.

The invention relates to a fireproof polystyrene thermal-insulation layer material. The fireproof polystyrene thermal-insulation layer material comprises the following components in parts by weight: 115 parts of polystyrene, 10 parts of polyvinyl alcohol, 2 parts of antimonous oxide, 5 parts of a magnesium hydroxide flame retardant, 10 parts of polystyrene, 34 parts of kaolin, 4 parts of zinc borate, 3 parts of polypropylene cellulose, 3 parts of phthalate, 4 parts of a brominated flame retardant and 2 parts of polytetrafluoroethylene. Polystyrene foam disclosed by the invention has very scarce and excellent flame retardant effects and remarkable fireproof and heat insulation effects, can be used for effectively preventing a polystyrene thermal-insulation board from heat shrinkage at an early stage, can prevent and delay the combustion of the polystyrene thermal-insulation board. Moreover, the fireproof polystyrene thermal-insulation layer material has excellent mechanical performance, high mechanical strength and strong crack resistance, can be used for improving the interface protective capacity and reducing the damage degree of the thermal-insulation layer.

The invention relates to a composite shock absorber structure with a sacrifice structure. The composite shock absorber structure with the sacrifice structure is characterized by comprising a shell structure, a shock absorbing support and the sacrifice structure; the shock absorbing support is arranged in the shell structure, and is used for supporting a protected assembly; the sacrifice structureis arranged between the bottom end of the protected assembly and the shell structure; and after bearing the axial high impacting overload, the sacrifice structure generates plastic deformation. The shock absorber structure has the beneficial effects of being small in size and small in weight, has the filtering capacity on random vibration such as a common shock absorber, also has certain one-timesuper-high overload protecting cavity, and is mainly applicable to application of mechanical sensitive systems on a missile-borne IMU or other missile-borne platforms.

The present invention relates to a high-temp. superconducting conducting wire and its preparation method. It contains superconducting core and silver or silver alloy base body for covering said superconducting core, and the exterior of said base body also is coated with a layer or several layers of covering layer so as to raise its protective capacity.

A method for characterizing an oxidative stress protective capacity of an antioxidative substance includes assigning a first score indicative of an oxidative stress protective capacity of a first antioxidative substance. The first score is based on the performance of the first antioxidative substance in a first antioxidative efficacy test relative to the performance of a second antioxidative substance in the first antioxidative efficacy test.

Disclosed is a packing structure used for loading a glass substrate plate, which comprises a bottom layer box body, at least a middle layer box body, at least an annular enclosing sleeve and an upper cover. The bottom layer box body is provided with a first lateral wall which surrounds a first opening and a first clamp element arranged on the first lateral wall. The middle layer box body is provided with a second lateral wall which surrounds a second opening. The bottom part of the middle layer box body is arranged on the first lateral wall and covers the first opening. The annular enclosing sleeve is sleeved connection with the second lateral wall and part of the periphery of the first lateral wall; the two opening ends of the annular enclosing sleeve are respectively provided with a second clamp element and a third clamp element; the second clamp element is in clamp joint with the first clamp element; the upper cover is arranged on the second lateral wall and covers the second opening. The upper cover is provided with a forth clamp element used for clamping joint with the third clamp element. The packing structure enables the users to change the number of the middle layer box bodies for stacking, maintains the protective capability for the loaded objects, improves the loading rate and realizes the purpose of reducing the transport cost.

The invention discloses an outward extending end plate joint and belongs to the field of structural engineering steel structures. In the outward extending end plate joint, welding is adopted between a steel beam and an end plate, secondary connection through a stainless steel L-shaped steel angle, top-bottom steel angles and stainless steel bolts is also adopted between the steel beam and the end plate, and the steel beam and a steel column are correspondingly connected through stainless steel bolts, the welding end plate and the two stainless steel angles. Through the connecting mode, the steel plate connecting position cracking phenomenon occurring to a traditional joint due to the influences of welding joint residual stress and a heat affected zone under the high temperature effect is avoided; ductility and robustness of a steel connecting area are improved, so that under the fire effect, the joint end plate has the enough ductile transition stress mechanism to form a secondary protective capacity even if being destroyed; and the connecting joint can further be used in anti-seismic areas, and by adoption of good ductility, the good deformation capacity and the good secondary protective mechanism of the stainless steel angles, excess energy is dissipated under the effect of a seismic load or a reciprocal load, and structural safety and integrity are guaranteed.

The invention relates to the technical field of power supply energy storage, in particular to a protective shell for a lithium battery cell and a use method thereof. The invention aims to solve the technical problems of general protection capability, small application range and inconvenient replacement of a battery cell. In order to solve the technical problems, the protective shell for the lithium battery cell and the using method of the protective shell are provided, the protective shell is composed of a base, a limiting mechanism and a fixing mechanism, after a first fixing base is sleeved with the protective shell, the battery cell can eject a second fixing base upwards, under the action of a second spring, a second fixing base can press the battery cell, therefore, fixation is performed; the protective shell is ingenious in structure, a baffle is installed on the protective shell, then a fixing strip slides downwards, then the baffle is fixed through a positioning bolt on a fixing plate and a positioning pin on a limiting plate, when the battery cell needs to be replaced, the baffle is detached, then a fixing bolt on an auxiliary fixing frame is unscrewed, then the auxiliary fixing frame slides, and then the battery cell is taken down for replacement.

The invention relates to a multi-component toughened bionic structural armor and a preparation method thereof. The armor is of three-layer composite structure, specifically, the upper layer and the lower layer of the structure refer to mixed arranged layers of ultra-hard intermetallic compound layer and fiber-reinforced composite layer, and the middle layer refers to an energy-absorbing and vibration-reducing layer formed by filling titanium honeycomb structure with high-elasticity resin-based composite material. Further, the upper layer and the lower layer are prepared by the steps of sequentially laminating titanium foil, aluminum foil, titanium foil, fiber-reinforced composite layer, titanium foil layer by layer sequentially gradually to obtain a preform and then sintering the preform;the armor is prepared by composing the upper layer and the lower layer with the titanium honeycomb structure, and then filling the titanium honeycomb structure with the energy-absorbing and vibration-reducing composite material. Since the rigid restraint structure that multiple material systems are utilized to achieve composition of toughness and hardness, similar materials are utilized as a matrix, and the honeycomb structure is filled with the energy-absorbing and vibration-reducing resin-based composite material is utilized, scientificity of the integral structure is guaranteed while the problem of difficulty in composition of heterogeneous materials is solved and protective capacity of the armor is improved.

An electrostatic discharge protective structure with the bidirectional protective capacity comprises a P-type substrate, an N-type well region, a first P-type heavily doped region, a second P-type heavily doped region, a first N-type heavily doped region, a second N-type heavily doped region, a third N-type heavily doped region, a fourth N-type heavily doped region, a first field oxide layer, a second field oxide layer, a third field oxide layer, a fourth field oxide layer and a grid oxide layer, a grid polycrystalline silicon layer, a first metal layer, a second metal layer, a third metal layer, a fourth metal layer, a fifth metal layer and a metal layer II. The electrostatic discharge protective structure has voltage resistance both in the positive and the negative directions. It is guaranteed that the structure will not affect the normal work of an internal circuit, the structure can provide electrostatic discharge current relief paths in the positive and the negative directions when meeting electrostatic discharge pulses, the purpose of electrostatic discharge protection is achieved, and the electrostatic discharge protective structure with the bidirectional protective capacity can be applied to an integrated circuit needing bidirectional electrostatic discharge protection.

The invention discloses a machine joint protection device. The machine joint protection device comprises a crawler-type mechanical chassis; one side of the crawler-type mechanical chassis is slidablyconnected with one side of a slide plate and fixedly connected with one side of a first fixed plate through a plurality of damping springs; the two sides of the crawler-type mechanical chassis are fixedly connected with one sides of two second fixed plates through a plurality of damping springs; the top end of the crawler-type mechanical chassis is fixedly connected with the four corners of the bottom end of a covering block through four hydraulic rods; and the bottom ends of the two sides of the covering block are fixedly connected with the two sides of the top end of the crawler-type mechanical chassis through a plurality of extension springs. According to the machine joint protection device, the bottom end of the covering block is fixedly connected with the top end of the crawler-type mechanical chassis through the four hydraulic rods, the situation that a fire fighting machine is damaged by heavy objects falling from the top of the fire fighting machine or by collapse, and normal working of the fire fighting machine is influenced can be prevented through the covering block, and the protective capacity of the fire fighting machine is improved.

The invention provides a system overvoltage suppression device, and relates to the technical field of power system overvoltage absorption. The system overvoltage suppression device comprises a high-voltage current-limiting fuse, a voltage transformer, a high-capacity overvoltage adsorber, a high-voltage fuse, an intelligent harmonic elimination switch and a microcomputer integrated protection device, wherein one end of the high-voltage current-limiting fuse and one end of the high-voltage fuse are separately connected with a high-voltage isolation switch; the other end of the high-voltage current-limiting fuse is connected with one end of the high-capacity overvoltage adsorber; the other end of the high-capacity overvoltage adsorber is grounded; the other end of the high-voltage fuse is connected with the voltage transformer; the voltage transformer is connected with the intelligent harmonic elimination switch and the microcomputer integrated protection device separately; the microcomputer integrated protection device is further connected with the intelligent harmonic elimination switch; the intelligent harmonic elimination switch is grounded. The system overvoltage suppression device provided by the invention can replace a voltage transformer cabinet, improve the detection capacity, the measurement capacity, the protective capacity and the protected capacity of the voltage transformer cabinet and suppress system peak overvoltage, is low in residual voltage value, and can realize harmonic elimination accurately and quickly.

An exterior wall panel apparatus and system is disclosed which assists in the rapid construction of manufactured homes and commercial buildings, and which replaces traditional building materials with a full composite system and materials, to extend and increase the protective capabilities of traditional residential, industrial and commercial structures