1102 results about "Stability test" patented technology

A system for performance testing of scalability implementations and testing of stability in blockchain database implementations. The testing system comprises a cluster of private blockchain nodes instantiated on a network and a control console that allows the user to set the number of nodes in the network and the number of clients for testing of a particular blockchain implementation. Performance metrics are established and tested. The test system allows for staged testing using generated databases, wallets, and accounts starting with simple 5-node networks, expanding to larger networks, then testing with decreased block validation times, continuing to testing using alternative, faster trust schemes, then testing implementation on divided blockchains, and finally testing on shared blockchains.

The invention relates to the preparation of a functional area of a sea purse blood vessel growth inhibition factor 1 and the use of the functional area of the sea purse blood vessel growth inhibition factor 1 in medicaments for preventing and curing tumors. In the invention, a gene engineering technique is used to realize the cloning, expression and recombination of the sea purse blood vessel growth inhibition factor 1; the recombinant functional fragment of the sea purse blood vessel growth inhibition factor 1 has the bioactivities for resisting the growth of blood vessels, tumor growth, tumor transplantation, acute toxicity tests and stability tests; and the functional area of the sea purse blood vessel growth inhibition factor 1 can be mixed with or dissolved in pharmaceutically acceptable carriers to prepare the medicaments for curing various tumors. The functional area of the sea purse blood vessel growth inhibition factor 1 has high action specificity, has the characteristics of easy expression, low degradation rate and the like of gene engineering medicaments and has the effects of inhibiting blood vessel growth, tumor growth and tumor transplantation; the provided gene engineering technique can realize the industrial production of the functional area of the sea purse blood vessel growth inhibition factor 1; and the functional area of the sea purse blood vessel growth inhibition factor 1 prepared by the gene engineering technique can be used in the preparation of medicaments for inhibiting blood vessel growth and preventing and curing tumors.

A stabilometric system is provided that uses a balance platform to detect problems in the vestibular system via data capture, data visualization and mathematical analysis of data, the system having means for data capture that obtain customized records and store data resulting from the readings of the sensors of the balance platform, means for displaying the data obtained using stabilometric tests on a screen that is controlled by a computer, and means for processing the data obtained from the measurements.

A process for improving the oxidation stability of lubricants including providing one or more esters containing branched alkyl groups which are reaction products of branched alcohols with a) one or more aliphatic dicarboxylic acids corresponding to general formula (II): HOOC—R2—COOH in which R2 is a branched or unbranched, saturated alkyl group containing 0 to 34 carbon atoms, or b) one or more saturated branched, monocarboxylic acids corresponding to general formula (III): R3—COOH in which R3 is a branched alkyl group of 3 to 39 carbon atoms, or c) one or more saturated monocarboxylic acids corresponding to general formula (III) in which R3 is a linear alkyl group of 3 to 29 carbon atoms, or d) a mixture thereof, as lubricants, with the proviso that the esters have an oxidation stability of 1000 hours or more, as determined by the Turbine Oil Stability Test (TOST test) to DIN EN ISO 4263-3.

The invention belongs to the strength testing techniques of airplanes, and relates to a testing method for a supporting coefficient of a loading end in a compression stabilization experiment of a wallboard. A supporting clamp for the compression stabilization experiment of a reinforced wallboard comprises a hinged support clamp with a supporting coefficient of 1, a simple support clamp with a supporting coefficient between 1 and 4, and a fixed support clamp with a supporting coefficient of 4; a rectangular groove is processed on one side of the plane of an articulation block; and the end socket of a test piece is directly embedded in the rectangular groove. In the invention, the design of the test piece is given first; then a foil gauge is arranged, and the test piece and the clamps are mounted; a compression load is loaded hierarchically, and the load-stress is tracked and measured; when a curve knee point is discovered, the load is unloaded, and the load at the knee point is recorded; the load at the knee point is led in a theoretical formula to obtain the supporting coefficient; and finally, through increasing H or increasing clamping force, the supporting coefficient is adjusted. The method has the characteristics of simple operation, high loading precision and low cost.

The invention relates to a method for controlling expansion and shrinkage of lamination of multiple layers of boards. The method comprises the steps that board incoming quality inspection is conducted, a dimensional stability test is conducted, and a part number is selected according to a test result; according to relevant parameters, an expansion and shrinkage library is established; inner films are produced, and measurement and statistics are conducted on the produced films; punching is conducted on multiple layers of boards which are not laminated; according to the thickness of each board, rivets with appropriate height are selected for riveting; the pattern is adjusted, the lamination conditions are set; lamination is conducted; holes are drilled through an X-RAY target drilling machine. Compared with the prior art, the method for controlling expansion and shrinkage of lamination of the multiple layers of boards has the advantages that the demand for large-composition production is met, production cost is effectively reduced, the utilization ratio of the boards is increased, the production efficiency is improved, and the rejection rate is reduced. Factors influencing control over expansion and shrinkage are controlled, the range of the influence caused by expansion and shrinkage is effectively narrowed, the error rate of drilling is effectively reduced, defective products and scrapped products caused by overall displacement of the multiple layers of boards are reduced, the drilling first-workpiece percent of pass is increased, and halt determination time is shortened.

A method for testing PC server performance which can ensure the validity of product performance test results via managing and regulating the test method which aim at standard operation and finding problems by using server performance test and application performance test as core. The test method can ensure the quality and efficiency of the test work, and provides data supporting for product study, buying and scheme exploitation. The method can not only ensure the hardware index of performance of the sever but also evaluate the application performance of the sever in file server applications, Web server applications, data-base server applications and so on and the stability of the sever via each test. The method system comprises server member significance testing, server applications significance testing and server stabilizing ability test.

The invention discloses a method for preparing a high-temperature resistant anti-infrared thermal radiation energy-saving coating. The method comprises the following steps of: adding inorganic crystal whisker or / and fiber materials to sol containing titanium and kalium elements, evenly stirring the mixture to form pulp; and coating the pulp on the surface of heat insulating materials, fireproof materials or thermal insulating materials, and sintering the pulp at the temperature of between 200 and 700 DEG C for 0.5 to 5 hours to form compact coatings with the thickness of 0.1 to 5mm, wherein the content of the inorganic crystal whisker or / and fiber materials in the pulp is 5 to 70 weight percent. In the temperature range of between 400 and 1,200 DEG C, the reflectivity of the compact coating which is prepared by the method in a thickness of 0.1 to 5mm on the infrared thermal radiation with the wave length of 500 to 2,500nm is over 90 percent, and after the coating of the invention undergoes 5 thermal shock stability tests at the temperature of 1,000 DEG C, no crack occurs.

The invention provides a method for testing the system stability in a mobile terminal. The method comprises the following steps: a) acquiring an interactive control to be tested of an application to be tested in the mobile terminal in the current user interface; b) determining the position of the interactive control to be tested in a display screen of the mobile terminal; c) performing a test of simulating user operation on the interactive control according to the position of the interactive control to be tested in the display screen of the mobile terminal; and d) executing steps a) to c) once or more than once according to specified conditions to obtain a test result. The invention also provides a device using the method. By the method and the device, the effective and controllable stability test can be implemented on different user interfaces.

The invention discloses a stiffened plate structure axial compression stability test clamp and method, and the stiffened plate structure axial direction compression stability test clamp comprises a semicircle ball seat (1) and a semicircle bulb (2) which can be moved in the semicircle ball seat (1); the semicircle ball seat (1) is fixed in the middle of the lower loading plate (10) of the testing machine, and the lower loading plate (10) is connected to a loading actuated cylinder of the testing machine; the inner part of the semicircle ball seat (1) is uniformly smeared with lubricating oil, and the semicircle bulb (2) is uniformly smeared with lubricating oil and is placed in the semicircle tee (1), and the semicircle bulb (2) can be moved in the semicircle tee (1) when bearing compressive load; an end portion support coefficient determination and adjusting method provided by the invention is used, and can effectively determine and adjust the end portion support state during the stiffened plate axle load stability test, and provide basis for the test analysis.

A storage-stable modified asphalt composition, which comprises: 50-97.7 parts by weight of a base asphalt, 2.0-20.0 parts by weight of a polymer having double bonds, 0.1-20.0 parts by weight of a compatilizer, 0.1-10.0 parts by weight of a cross-linking reagent, and 0.1-10.0 parts by weight of a organic polar compound, and the softening point difference of its product determined by the stability test is lower than 2.5° C. The process for preparing said modified asphalt composition is mixing 50-97.7 parts by weight of a base asphalt, 2.0-20.0 parts by weight of a polymer having double bonds, 0.1-20.0 parts by weight of a compatilizer, 0.1-10.0 parts by weight of a cross-linking reagent, and 0.1-10.0 parts by weight of a organic polar compound under certain conditions. The modified asphalt provided by the present invention has good storage-stability. The preparation process provided by the present invention is simple, and there is no need for special apparatus.

The invention provides a stability test platform and a stability test method. The stability test platform comprises a stability console, a power supply automatic control device, a terminal equipment matrix, an uplink exchanger and a network test instrument. By the stability test platform and the stability test method, multiple test function combinations can be finished flexibly, simply and conveniently without manual intervention; and the complete and high-strength stability test is implemented.

The invention relates to a multi-functional simulation experiment system for a mining elevator. The system comprises a head frame fixed on a concrete base, as well as an anti-explosion traction test system, a car protection test system, a flexible guide rail guide test system, a water-pouring simulation test system, a car and a counter weight which are arranged on the head frame. Hoisting rope tension dynamic regulating test, car over-speed or out of control protection test, car top reaching and bottom landing safety protection test, flexible guide rail tension dynamic balance test, car running stability test, tail rope hanging reliable test, car enduring water-pouring test for simulating hoistway water penetration and the like can be realized; and a safe and reliable multi-functional simulation experiment platform which has compact structure, is convenient to operate, is time-saving and labor-saving and can simulate the mine well environment is provided for lifting materials and personnel under a mine.

The invention discloses a detection method for a multi-beam sounding detection method. The detection method comprises an inner coincidence precision static stability test, a dynamic sailing test, an outer precision static stability test, a dynamic sailing test, and detection on a sound source level, a wave beam angle, resolution force, width sweeping ability and wave beam space. The method has important functions of measuring an ocean floor relief map and landform and ensuring the quality of sounding data of the multi-beam sounding system.

The invention discloses a production method of lycopene microcapsule, providing a production method for realizing lycopene encapsulated emulsion by spray drying on the basis of the physical and chemical properties of lycopene. The method comprises the following steps: blending wall material solution, blending core material solution, homogenizing after the core material solution is mixed with the wall material solution, carrying out spray drying on emulsion, measuring lycopene microcapsule solubility, carrying out stability test and the like. Preferably, the preparation step of the lycopene microcapsule also comprises: an ultrasound assisted high-pressure homogenizing method is adopted to prepare the emulsion; and homogenized emulsion is performed with spray drying to obtain the lycopene microcapsule which has high solubility and favorable stability for light, heat and oxygen.

The invention provides a method for testing the stability of a switch. The method specifically comprises the following steps of: interconnecting a front port and a tail port of the switch with two communication ports of a network tester respectively, and interconnecting each port of the switch in a serpentine networking way; configuring a corresponding untagged virtual local area network (VLAN) and a port attribute Pvlan on the switch, wherein the untagged VLAN is a VLAN without tags, and the Pvlan is a private VLAN; and transmitting test traffic from one port to the other port of the network tester. Compared with the prior art, the method for testing the stability of the switch has the advantages that a piece of test traffic sequentially flows through all the ports of the switch instantly in a serpentine way to achieve a full load effect, test work is simpler and easier, and the method is easy to popularize and use.

The invention discloses block chain system stability testing methods. A method comprises the steps of obtaining scene parameters which are used for configuring a block chain system, wherein the sceneparameters are the parameter which are used for carrying out configuration for various different scenes; configuring a block chain network according to the scene parameters; and monitoring use condition of logs and resources of each node of the block chain network, and obtaining a stability testing result. According to the method, through setting of the scene parameters, various different practical scenes can be simulated, and the scenes comprise a scene in which malicious nodes send malicious messages, the scene in which networking modes of different types of nodes are different, and the scene in which load pressure is imbalanced. Stability of a distributed system is tested in the various scenes, so potential stability defects of the block chain system are discovered as many as possible.The method is relatively effective. The scene parameters can be set by oneself, so the method is relatively flexible. The invention also provides a block chain system stability testing device and equipment and a computer readable memory medium which have the technical effects.

The invention discloses a method for network testing of a server cluster system, belonging to the field of network testing. The method comprises the following steps: (1) establishing a testing environment; (2) testing bandwidth; (3) testing stability; and (4) collecting results and comparing. By virtue of the method, the test of the network bandwidth and the stability of a server cluster is realized, and whether the performance and the reliability of a network system meet the application or not is evaluated through a method for binding cpu fixed thread and oppositely transmitting nodes by groups, so that the testing efficiency is improved, manpower resources are saved and the quality of products is guaranteed.

A testing method of baseboard management controller (BMC) is used for testing firmware stability of a BMC in a server. The testing method includes initializing a plurality of virtual operating systems; setting a plurality of virtual intelligent platform management interfaces (IPMIs) and a virtual BMC in the virtual operating systems; performing a firmware update on the virtual BMC through the virtual IPMI to update the firmware of the virtual BMC; performing a stability test through the virtual BMC and the server; and loading the firmware of the virtual BMC passing the stability test into a physical BMC.

The invention discloses a method for testing software system operation stability, which comprises the following steps of: executing a stability control script when the software system operation stability is needed to be tested, and monitoring the operation of the tested software system through the stability control script; acquiring process parameters in the operation of the tested software system; and analyzing the process parameters in the operation of the tested software system and outputting an analysis result. The invention also discloses a device for testing the software system operation stability. The method and the device can realize the automatic testing and analyzing process so as to improve the reliability and testing efficiency of the test results.

The invention relates to a suspension stability testing device and testing method used for testing suspension stability of high-density working solution solid phase granules under high temperature and high pressure. According to the invention, the suspension stability of a high-density working solution at a shaft bottom can be accurately evaluated, which provides scientific experiment references for well drilling operation. The device has the technical scheme that an O-shaped sealing ring of a container is arranged in a groove of an upper end surface of the high temperature and high pressure resistant container, the top end of an upper cover of the container is provided with an upper part needle type stop valve, and the stop valve is connected with a constant-pressure constant-speed pump; the container is wrapped with a heating sleeve outside, a side wall of the container is provided with a temperature sensor and 11 pressure transmitters distributed equidistantly and is connected with a computer; the lower part of the container is sealed with a lower cover of the container and the O-shaped sealing ring, and the lower cover of the container is provided with a lower part needle type stop valve;the container is divided into two sealed cabins by the O-shaped sealing ring; and a U-shaped base is connected with the container through a rotary shaft, and the front end of the rotary shaft is provided with a brake switch. The device can be used for accurately testing the suspension stability of the high-density working solution under a high-temperature and high-pressure environment.

The invention discloses book reservation dry red grape wine and a brewing method thereof. 'Xiangniang No.1' brier grape is utilized as a raw material for the grape wine, and the physical and chemical indexes of which are as follows: total SO2 is 47mg / L, volatile acid is 0.4g / L, the content of resveratrol is 1.65mg / L and total phenol is 2098 / L; and sensory indexes are as follows: the color is purplish red, and the grape wine has varietal fruity aroma and protruding aroma, is pleasant, has no exotic aroma, is mellow and harmonic, and has strong structural feeling and special style. The brewing method comprises the following steps: preparing materials, removing peduncles, smashing, filling into a tank; carrying out open type circulating, dipping, fermenting, separating out from the tank; fermenting malic acid-lactic acid; changing the tank for the first time; blending in balance; and clarifying or fining, stabilizing, ageing, carrying out stability test, filling, bottling and packaging to obtain the finish product. The brewing process of the grape wine is advanced, the raw materials are natural, and no pigment and preservative are added; the wine color is royal purple, and the wine is clear and transparent; the wine has strong fruit and strong typicalness, pleasant and pure aroma and mature fruit; numerous wine columns remain in a cup; and the smooth mouthfeel does not disperse after the wine is drunk.

The invention provides a method for testing the stability and reliability of a storage subsystem. Due to a special application environment and client requirements, a single storage server is generally requested to be provided with more than 12 hard disks, the following test method is made and a test script is formed to perform related test on the reliability and stability of the storage server aiming at the user-related application in order to ensure the reliability and stability for long-term running of the system; because many hard disks are used by the storage server, the product has serious hidden troubles in the stability such as out-of-order magnetic disk, drifting, large-pressure reading and writing environment, disconnection of the magnetic disk, IO error and the like before use of the test method; after use of the test method of the invention, the hidden troubles can be found and solved at the beginning of the development so as to solve similar lot size problem during the product supply and greatly improve the stability and reliability for long-term running of the product.

The invention discloses a service upgrading management method and device and a storage medium. The service upgrading management method comprises the following steps: creating a gray level release strategy and a gray level distribution rule; controlling a gray level distribution state; and issuing the gray level distribution strategy, the gray level distribution rule and the gray level distributionstate to gray level distribution equipment, wherein the gray level release strategy, the gray level distribution rule and the gray level distribution state are used for the gray level distribution equipment to control the flow direction of the service message. By adopting the scheme, smooth switching and lossless upgrading of the service flow can be realized without additionally deploying a set of test environment or backup environment which is specially used for stability test before releasing.

The invention discloses a preparation method of N-doped porous carbon coated nano-particles (Co@Ir / NC-x, and x is the quality ratio of Ir) of a Co-Ir core-shell structure and application of the N-doped porous carbon coated nano-particles of the Co-Ir core-shell structure to catalytic water splitting. The preparation method has the advantages that (1) the preparation process is simple and direct, and energy consumption is low, specifically, Co / NC obtained after a zeolite imidazole framework material (ZIF-67 for short) is calcined is directly subjected to Galvanic replacement with Ir<3+> at theroom temperature, high temperature and high pressure are not needed, and accordingly the energy consumption is low; (2) the catalytic performance is good, and the stability is high, specifically, a Co@Ir / NC-10% sample is in a 1M KOH solution, in an oxygen producing test, the current density is 10 mA cm<-2>, the overpotential is 280 mV, and the performance is higher than IrO2; in a hydrogen producing test, the current density is 10 mA cm<-2>, the overpotential is -121 mV; besides, after a stability test of 12 h, the oxygen producing activity of IrO2 is attenuated by 55.8% while the oxygen producing activity of Co@Ir / NC-10% is attenuated only by 20.6%, and the hydrogen producing stability of Co@Ir / NC-10% is far higher than that of commercial Pt / C under the same conditions; and (3) the catalyst cost is low and the Co source is wide, specifically, the nano-particles are of the core-shell structure with Co as a core and Ir as a shell, the amount of Ir is reduced on the basis of more exposedcatalytic activity sites, a core metal precursor Co is wide in source and low in cost, the catalyst cost is greatly reduced, and great commercial application prospects are achieved.

Methods and computer readable media for performing a compositional reservoir simulation of a subterranean hydrocarbon-bearing reservoir is provided. Reduced variables for flash computations are utilized with a methodology of conditional stability testing for achieving optimal efficiency of phase behavior computations in a compositional reservoir simulator. A least abundant phase is selected as primary variables for a primary phase and a secondary phase is selected for a more abundant phase to ensure stability by not dividing by a value near zero due to the selection of the primary phase as being associated with phase which is the least abundant. A bounded interval may be used to limit solution changes in reduced variable algorithms to achieve greater stability of algorithms. Stability tests may be performed during flash computations using reduced variables by employing a direct residual form based on the definition of the reduced variables and the tangent-plane distance condition.

A method for matching asphalt mixture suitable for different asphalt road is provided which comprises of steps of: (1) aggregate test; (2) choosing of design aggregate; (3) choosing of dosage of asphalt; (4) Marshall test; (5) high temperature stability test of asphalt mixture at best oil amount; (6) water stability test of asphalt mixture at best oil amount; (7) low temperature bending test of small beam of asphalt mixture at best oil amount. The advantages of the present invention lies in: (1) can obtain high resistance friction to resist track and limit slightness granules to make the aggregate not easy to crash in the build process and traffic, and limit clay content and enhance bond force of aggregate and asphalt; (2) the structure of mixture is reasonable; (3) analysis process of asphalt volume is nicer; (4) asphalt road surface has high anti-track capability, at the same time has higher consistency of vibratory compaction; (5) the mixture prepared by the present invention has merits of less largest dimension granule diameter coarse aggregate and fine aggregate, and more medium aggregate, so the uniformity is good, and easy to press, and the mixture is tends to interlocked-denseness and the framework is good.

The invention relates to an intelligent ammeter program stability test system based on error injection. The system comprises a program test module and a simulation module which are connected through a reserved connector, wherein the simulation module is in communication with computer software through a network. Pre-stored data information is written into the simulation module by the computer software according to a set test scheme, running information can be read from the simulation module at any time in the running process of the program test module, and simulation on preset working conditions can be completed. By observing the responding condition of an intelligent ammeter program under the preset working conditions, the capacity of the program for handling abnormal conditions can be judged, and stability of the program is judged. According to the system, all the modules in an ammeter are simulated through an FPGA chip, and therefore various working conditions which may happen to the ammeter can be simulated; the working states of all the modules in the intelligent ammeter are directly set through the computer software; all the modules in the intelligent ammeter are simulated with the FPGA chip, and the system has the advantages of being high in working speed and accuracy rate.

The present invention, belonging to the technical field of computers, provides a method for automatically detecting a hard disk abnormality. The method comprises steps of: preparing a test environment on a server, setting up a test platform, installing an operating system, installing a test tool, configuring test parameters, starting a test, monitoring a test process; and condition selection: if the test monitoring process fails, checking error report information and recording a hard disk SN code, conduct subsequent processing, and ending the test; and if the test monitoring process is subjected to no abnormality, checking a test result, and ending the test. The method for automatically detecting a hard disk abnormality achieves detection on the hard disk information and health state in combination with the smartctl command under Linux, integrates such detection into a restart test of the server, achieves the objective of testing stability of a storage subsystem by long-term restart test and the hard disk detection test each time; and additionally implements the hard disk reliability and stability tests.