104results about How to "Extensive testing" patented technology

An electrode array for use in medical stimulation includes one or more electrodes along an array body and one or more leads. Each of the electrodes has one or more conductive sections and each of the conductive sections has an outer surface which is substantially exposed from the array body for coupling to tissue. At least one of the electrodes has at least one of: adjacent pairs of the conductive sections separated by an insulating section; the conductive section having at least one portion which is spaced in from other portions of the conductive section and which substantially extends all the way around or all along a length of the conductive section; at least one substantially non-planar end; and a substantially planar shape with a substantially non-linear outer edge. Each of the electrodes has at least one of the leads coupled to each of the conductive sections of the electrode.

This invention is a transportable organ preservation system that substantially increases the time during which the organ can be maintained viable for successful implantation into a recipient. A chilled oxygenated nutrient solution can be pumped through the vascular bed of the organ after excision of the organ from the donor and during transport. The device of the present invention uses flexible permeable tubing to oxygenate the perfusion fluid while the CO2 produced by the organ diffuses out of the perfusion fluid. One pressurized two-liter “C” cylinder can supply oxygen for up to 34 hours of perfusion time. The device can use a simple electric pump driven by a storage battery to circulate the perfusion fluid through the organ being transported. The vessel containing the organ to be transported can be held at a suitable temperature by a chiller.

The present invention provides a smoking article having a reduced ignition propensity by reason of one or more cross-directional bands of an adhesive applied to the paper wrapper of the smoking article. The adhesive may be one of a cigarette seam adhesive, a filter plug wrap adhesive or a tipping paper adhesive conventionally used in the manufacture of cigarettes. A cigarette maker is modified to include the adhesive applicator apparatus of the invention which applies the adhesive bands to the paper wrapper in an in line process.

The invention disclosed herein provides a subsonic wind tunnel capable for accurately maintaining a desired Mach number, pressure and temperature for use in aerothermal testing of materials. The invention allows the Mach number to be precisely controlled in the test section of the wind tunnel by employing a restricted outlet acting as a sonic throat for the wind tunnel. In the preferred embodiment, the restricted outlet is constructed to be variable in cross sectional area allowing a range of Mach numbers to be tested. The variable outlet is varied during the operation of the wind tunnel so that an actual trajectory with changing Mach numbers, pressure, and temperature is simulated.

A panel chip for supporting biological samples for observation with a microscope. The glass panel defines a top flat surface, a bottom bearing surface, and at least a few channels extending generally parallel to each other from top to bottom surfaces. Each of the channels defines a top access mouth for ingress of biological samples, wherein each channel is obliquely inclined so as to make a significant acute angle relative to an axis perpendicular to said top flat surface, in order to facilitate the guidance of maximum light into the channel due to zero loss of reflection and to produce the maximum number of total internal reflection and to guide the maximum light out of the microchannel in such a manner that produces no artifact halo for maximum detection and sensitivity. Each channel has such an inner diameter as to accommodate flow through viscosity of a biological sample containing fluid.

The invention relates to an azido-containing naphthalimide compound and applications of the azido-containing naphthalimide compound in detecting hydrogen sulfide, wherein the azido-containing naphthalimide compound is constituted by a novel fluorescence molecular probe and three different detection systems. The fluorescence molecular probe makes use of reducibility of the hydrogen sulfide; the spectrum of the compound is obviously changed before and after the fluorescence molecular probe reacts with the hydrogen sulfide, and the color is changed to be yellow from nearly colorless; different surfactants are added into the solution, so that the response time can be changed and the linear detection range on the hydrogen sulfide is expanded. The technology is characterized by sensitive reaction, fast response speed and wide linear range, and is particularly suitable for detecting the content of the hydrogen sulfide in organisms.

An object detection device includes a first optical transceiver that generates a first beam flux and receives a scattered portion of the first beam flux, a second optical transceiver that generates a second beam flux and receives a scattered portion of the second beam flux, and a mirror unit that rotates around a rotation axis. The first beam flux is reflected by the mirror unit and is scanned based on the rotation of the mirror unit, and the scattered portion of the first beam flux is generated by scattering of the first beam flux by an object. The scattered portion of the first beam flux is reflected by the mirror unit before being received by a light receiving portion of the first optical transceiver, and the second beam flux is reflected by the mirror unit and is scanned based on the rotation of the mirror unit.

A microscale selective laser sintering (μ-SLS) that improves the minimum feature-size resolution of metal additively manufactured parts by up to two orders of magnitude, while still maintaining the throughput of traditional additive manufacturing processes. The microscale selective laser sintering includes, in some embodiments, ultra-fast lasers, a micro-mirror based optical system, nanoscale powders, and a precision spreader mechanism. The micro-SLS system is capable of achieving build rates of at least 1 cm3 / hr while achieving a feature-size resolution of approximately 1 μm. In some embodiments, the exemplified systems and methods facilitate a direct write, microscale selective laser sintering μ-SLS system that is configured to write 3D metal structures having features sizes down to approximately 1 μm scale on rigid or flexible substrates. The exemplified systems and methods may operate on a variety of material including, for example, polymers, dielectrics, semiconductors, and metals.

The invention relates to a cross-scale micro-nano in-situ three-point bending mechanical performance testing platform which belongs to the field of in-situ mechanical performance testing and structurally comprises a precise drive unit, a transmission and execution unit, a signal control and detection unit and a connection and support unit, wherein a brushless direct-current servo motor is connected with a primary worm, connected with a secondary worm shaft through a primary worm gear drive pair, respectively connected with precise ball screws I and II through a secondary worm gear drive pair,and further connected with a hammer head. The cross-scale micro-nano in-situ three-point bending mechanical performance testing platform has the advantages of small volume, light weight, high rigidity, compact structure and high test precision, can provide plentiful test contents, and can be mutually compatible with carrier platforms of various electronic microscope vacuum cavities.

To provide a technique for connection from a conventional personal computer having no terminal ID to a service site for mobile phone terminals. A simulation server 4 is set as the proxy server for a personal computer 5 or 9. In the proxy server (simulation server 4), terminal ID's suitable for the format are generated, and a cookie is generated for each personal computer or session. The terminal ID's and cookies are related and stored as a hash table 10. In the proxy server 4, a terminal ID is appended to a request from the personal computer 5 or 9, and the request is transferred to an i-mode server 3 along with the terminal ID.

The invention belongs to the technical field of molecular biology and relates to the analysis and detection of nucleic acids, particularly to a PCR (polymerase chain reaction) detection method which is universal and utilizes 5'-3' excisionenzyme activity of nucleic acid polymerase for releasing DNAzyme. The nucleic acid detection method comprises the following steps: adding an oligonucleotide probe labeled by the DNAzyme or partial DNAzyme in the PCR system, amplifying nucleic acids to be detected by a forward primer and a reverse primer, releasing the DNAzyme label or the partial DNAzyme label in the probe by the 5'-3' excisionenzyme activity of the nucleic acid polymerase, and carrying out qualitative analysis or quantitative analysis of nucleic acids by detecting labels released from PCR products. The method achieves sensitivity, accuracy, fastness and cheapness; and the method can be applied in various gene detection systems and is highly applicable to the early detection and genetic analysis of some diseases, and the like.

The present invention relates to an apparatus for measuring winding resistances of windings in a delta-connected transformer, comprising at least a first and a second DC current source (S1, S2) connected each between the phase ends of a first (A) and a second leg (C; B) respectively of the primary side (P) of the transformer and at least a third DC current source (S3) connected between two nodes (a, b) of the secondary side (S) of the transformer. Furthermore the invention relates to a method for measuring a winding resistance of windings in delta-connected transformers, comprising the steps of applying a first and a second measuring current to each one of two corresponding legs (C, B), applying a third measuring current (I2) between two nodes (b, a) of a pair of windings on the secondary side (S) and measuring at least a winding resistance of the winding between said nodes (b, a) on the secondary side (S) of the transformer and / or the winding resistance of a leg (A) of the primary side (P) as soon as an inductive voltage drop in the windings substantially equals zero.

A test system and a method for testing a multiplexed BOP control system (6) wherein the multiplexed BOP control system (6) comprises a first and a second redundant central control unit (10, 20) with respective first and second operator consoles (30, 31), wherein the central control units (10, 20) are arranged for being connected via a first signal transmission system (40) to respective first and second redundant subsea control systems (11, 21) arranged for being connected to BOP valves (50) and BOP sensors (55) in a subsea BOP (1), and the test system comprises a control system signal simulator (42) arranged for being connected between one or more of the control units (10, 20) and one or more of the subsea control systems (11, 21), and further arranged for entirely or partly replacing the first signal transmission system (40) and providing simulated signals (41) between one or more of the control units (10, 20) and one or more of the subsea control systems (11, 21).

The invention discloses a method for a novel nano precious metal particle modified tin dioxide gas sensitive material. The preparation method for the nano precious metal particle modified tin dioxide gas sensitive material comprises the following steps of: adding a small quantity of other elements serving as performance tuning elements into raw materials of precious metal powder (two or more types of Ag, Au, Pt, Ru, Rh, Pd, Ir and Re), tin powder or alloy powder of the precious metals and tin, wherein the mass fraction ratio of the precious metals to the tin is controlled to be between 2 and 10 percent; performing mechanical alloying in a low-temperature ball mill, wherein the prepared precious metals are enwrapped by the tin powder, and formed nano-clusters are uniformly distributed in powder; pressing the prepared compound powder; performing oxygen atmosphere sintering at a certain temperature; and finishing reactive synthesis of oxides by controlling the process condition. The prepared precious metals are distributed in a tin dioxide target material in the form of nano particles, and the previous metal nano particles prepared by sputtering or depositing are uniformly distributed on a tin dioxide gas sensitive thin film. The novel gas sensitive material prepared by the method has high gas sensitive comprehensive performance, low cost, wide detection of harmful gases and long service life.

The invention discloses a method for a robot to initiatively search and position a smell source. The method comprises steps that firstly a used all-directional moving robot for searching and positioning a smell source is designed; an included angle between 90 degrees to 180 degrees is formed between a smoke plume finding stage robot and the robot runs along the upper wind direction; when the wind speed is smaller than a set threshold value, the robot carries out comprehensive searching based on the Z-shaped traversing method and changes the running direction when meeting a boundary; the smoke plume finding stage robot carries out swinging movement in variable step sizes and variable angles; by combining 360-degree all-directional rotation movement of the robot body, if gas is not detected, the robot carries out forward spiral-line movement in the clockwise direction; the robot body carries out 360-degree all-directional rotation movement; at a smell source positioning stage, a laser range finding sensor and a gas sensor carried by the robot are used for measuring gas concentration around a suspicious smell source so as to carry out gas source judgment, and finally the positioning is finished. Compared with the traditional smell source searching method, the provided method has high practicability and robustness.

A robot system includes a supply section configured to supply an object, a first test section group including a plurality of first test sections configured to test the supplied object, a second test section group including a plurality of second test sections configured to test the supplied object, a collecting section configured to collect the tested object, and a robot including a robot arm and configured to hold, convey, and release the object. The robot is capable of collectively conveying a plurality of the objects. A total of conveyance times for the conveyance of the object by the robot from the supply to the collection of the object is shorter than a total of processing times for the holding and the release of the object by the robot.

The invention belongs to the fields of chemistry, materials and food safety, and relates to a molecular imprinting ratio fluorescent sensor, a preparation method and application thereof. The preparation method of the molecular imprinting ratio fluorescent sensor includes the steps that molecular imprinting is carried out through sol-gel polymerization, single-component dual-fluorescence emission cadmium telluride / 8-hydroxyquinoline zinc nanoparticles provide fluorescence signals, holes after eluting bright blue are recognition sites, a mesoporous structure is formed after hexadecyl trimethyl ammonium bromide is eluted, and bright blue imprinted microspheres with the mesoporous structure are obtained, that is, the molecular imprinting ratio fluorescent sensor based on the single-component dual-fluorescence emission nanoparticles. According to the molecular imprinting ratio fluorescent sensor, preparation and application thereof, the obtained sensor prepared by the preparation method candetect bright blue with high selectivity and sensitivity, and provides color evolution and self-correction functions; and in addition, by effectively adjusting the emission wavelength of the sensor,the molecular imprinting ratio fluorescent sensor can be more widely used in detection of various colored substances.

There are included a mother board (11), which has therein a multiplexer and a test pass / fail determining part, and a daughter board (12) that has therein an A / D converting part and an averaging part. The mother board (11) multiplexes a plurality of analog signals outputted from a plurality of output terminals of an LSI formed on a wafer (W) to be tested, thereby reducing the number of signals in an early stage. The daughter board (12) A / D converts and averages the resultant signals from the mother board (11), and supplies the averaged characteristic measured data to the mother board (11) for a pass / fail determination. This can eliminate the need for a large number of parallel transmission paths and processing circuits, raise the throughput, and reduce the affections of noise included in the analog signals due to the average processing.

It is a measurement for content of fly ash in the new-mixed concrete and especially relates to the measurement for concrete content. The method in this invention is the following: first to separate through partition method carpolite, sand and mixture of cement and fly ash in the specimen of new-mixed concrete and to weigh them after cooling and drying; then to measure the cement, fly ash density in the material used in the concrete or sand plasm and density of the recycled mucus mixture; then to measure the fly ash content through simple calculation. This invention improves the measurement for the concrete content and can be widely used in the measurement of the solid waste such as fly ash in the new-mixed concrete.

Systems, methods and computer program products for testing the stability and efficiency of a database query engine are described herein. In an embodiment, all possible query execution plans considered by a query optimizer are retained in the form of abstract plans (APs). Each AP is then subsequently supplied with a query to test for stack traces and incorrect results that may occur during the execution of the query. An embodiment includes determining an optimizer efficiency index (OEI) by comparing each AP with a query execution plan chosen by the query optimizer and classifying the APs into various performance buckets based on the degree of improvement or degradation in performance with respect to the query execution plan chosen by the query optimizer. In another embodiment to determine the optimizer efficiency index, APs are ranked based on estimated cost and classified into a plurality of categories based on query optimizer estimates and actual execution behavior.

The invention discloses a detection device for engine oil sump hardness. The technical problems, that conventional engine oil sump hardness detection devices have low stability of installing and fixing oil sumps during detecting and cannot simulate various situations of the oil sumps in actual work, can be solved. The device includes a pedestal, an installation seat, side plates and a pressing plate; a rotating shaft is installed in the middle on the top of the pedestal; the top of the rotating shaft is connected to the U-shaped installation seat; the middle parts on the two sides on the top of the installation seat are connected to the side plates in L-shaped arrangement through rotatory shafts; compressing plates in horizontal arrangement are connected to the lower parts on the tops of the side plates; multiple second hydraulic columns are installed between the compressing plates and the tops of the side plates; and base plates are horizontally welded at the bottoms of the side plates. The device can simulate the actual installation state of an oil sump and impact force on the oil sump in different directions during working, so that the reality of simulation is higher, testing scopes are wider, and the oil sump is good in stability during testing and not easy to shake.

Described are a test apparatus and a test method for the wetted perimeter of coal seam water injection. In the test apparatus, a columnar insulator is provided between an upper electrode and a lower electrode, circular insulating tapes are located at the outer edges of the upper electrode and the lower electrode, a circular reverse osmosis membrane is provided at the middle of the circular insulating tape, the upper electrode, lower electrode, circular insulating tapes and circular reverse osmosis membrane form an enclosed chamber which is filled with solid sodium chloride, and cotton yarns are packed among the upper resin backing plate, lower resin backing plate, circular insulating tapes and the inner walls of water permeable perforated pipes. The upper electrode is provided with an electrode lead which passes through the columnar insulator, the lower electrode and the lower resin backing plate and goes out from the tail connecting end.

The invention discloses protocol test equipment including first interface unit, second interface unit, protocol test unit, control unit and management unit. The invention also discloses a protocol test method. The protocol test equipment is connected between source device and destination device. The method includes following steps: (1) obtaining first message packet sent by source device; based on test rule, modifying content of the packet; sending the modified packet to destination device; (2) obtaining packet of response message to the modified packet from destination device; analyzing whether packet of response message is a packet accorded with stated test rules. The invention realizes categoricalness of test, and the test can simulate abnormal condition rapidly.

The invention relates to a method for operating an automatically driven, driverless motor vehicle (1), in particular a passenger vehicle, in which sensor data is evaluated with respect to the objects (17) to be taken into account during the route planning, said data being captured by the ambient sensors of the motor vehicle (1) which comprise at least one camera (6), said objects (17) can be classified according to at least one classifier evaluating the associated sensor data as an obstacle or no obstacle. When the object (17) can not be classified, or it can not be classified with sufficient reliability as an obstacle or not an obstacle and / or in the presence of at least one object (17) obstructing the continuation of a route of the motor vehicle (1) to a current target destination, at least one camera image (18) of the corresponding object (17) is captured by at least one of the at least one cameras (6), is transmitted to a mobile communication device (11) carried by a user (12) of the motor vehicle (1) and is represented on said device, and an input of the user (12) classifying the object (17) as an obstacle or not an obstacle is captured as classifying information, said classifying information being sent back to the motor vehicle (1) and is taken into account for the further automatic driving of the motor vehicle (1).