877 results about "Direct observation" patented technology

A robotic system for performing minimally invasive spinal stabilization, using two screws inserted in oblique trajectories from an inferior vertebra pedicle into the adjacent superior vertebra body. The procedure is less traumatic than such procedures performed using open back surgery, by virtue of the robot used to guide the surgeon along a safe trajectory, avoiding damage to nerves surrounding the vertebrae. The robot arm is advantageous since no access is provided in a minimally invasive procedure for direct viewing of the operation site, and the accuracy required for oblique entry can readily be achieved only using robotic control. This robotic system also obviates the need for a large number of fluoroscope images to check drill insertion position relative to the surrounding nerves. Disc cleaning tools with flexible wire heads are also described. The drilling trajectory is determined by comparing fluoroscope images to preoperative images showing the planned path.

A system for event triggering comprises an interface and a processor. An interface configured to receive a face tracking data and receive a sensor data. The processor configured to determine a degree of drowsiness based at least in part on the face tracking data and the sensor data; in the event that the degree of drowsiness is greater than a first threshold, capture data; and in the event that the degree of drowsiness is greater than a second threshold, provide a warning.

An inertial (“INS”) / GPS receiver includes an INS sub-system which incorporates, into a modified Kalman filter, GPS observables and / or other observables that span previous and current times. The INS filter utilizes the observables to update position information relating to both the current and the previous times, and to propagate the current position, velocity and attitude related information. The GPS observable may be delta phase measurements, and the other observables may be, for example, wheel pick-offs (or counts of wheel revolutions) that are used to calculate along track differences, and so forth. The inclusion of the measurements in the filter together with the current and the previous position related information essentially eliminates the effect of system dynamics from the system model. A position difference can thus be formed that is directly observable by the phase difference or along track difference measured between the previous and current time epochs. Further, the delta phase measurements can be incorporated in the INS filter without having to maintain GPS carrier ambiguity states. The INS sub-system and the GPS sub-system share GPS and INS position and covariance information. The receiver time tags the INS and any other non-GPS measurement data with GPS time, and then uses the INS and GPS filters to produce INS and GPS position information that is synchronized in time. The GPS / INS receiver utilizes GPS position and associated covariance information and the GPS and / or other observables in the updating of the INS filter. The INS filter, in turn, provides updated system error information that is used to propagate inertial current position, velocity and attitude information. Further, the receiver utilizes the inertial position, velocity and covariance information in the GPS filters to speed up GPS satellite signal re-acquisition and associated ambiguity resolution operations

A surgical simulation system is provided. The system includes at least one simulated body organ placed upon the base of an organ tray and at least one covering layer placed over the simulated body organ. At least one of the simulated body organ and covering layer includes electro-conductive gel that is operably severable under application of electrical current to simulate electrosurgery in a training environment. The training environment comprises a top cover connected to and spaced apart from a base to define an internal cavity that is partially obstructed from direct observation by a practitioner. The tray, simulated body organs and covering layer are placed inside the internal cavity for the practice of laparoscopic surgical procedures.

The invention discloses an integrated digital transfusion apparatus and a transfusion monitoring and management method thereof. The integrated digital transfusion apparatus is mainly structurally characterized in that a shell of devices including a control system, a display and the like and a transfusion tube clip and device shell are respectively fixed onto an integrated transfusion support and device shell. A touch display, a microprocessor, a microphone / speaker, a scanner, a wireless network connection device, a miniprinter, a transfusion tube, a Murphy dripper clamping groove, a finger peristaltic pump, a photoelectric droplet detection device, a pressure detector and an ultrasonic bubble detector are mounted on the integrated digital transfusion apparatus. Data acquired by different parts in the transfusion apparatus are used for mutual comparison of transfusion parameters. Software computation and simulation techniques are used during transfusion, and nurses can well know detailed transfusion conditions of each patient in transfusion by directly observing simulated transfusion bottles / bags and tubes and simulated transfusion apparatuses on software of the transfusion apparatuses and software on external computers, setting operation of various transfusion parameters, setting alarm thresholds of the various transfusion parameters and the like.

The invention relates to biology applied technology field, especially relates to a immune chromatography assay for quickly detecting the human immunologic deficiency disease (HIV) antibody and antigen. The assay comprises two independent test papers A and B and plastic case C for storing the test paper, wherein the test paper A is used for detecting the HIV antibody and the test paper B is used for detecting the HIV p24 antigen. The test paper A and test paper B are parallely encased in the plastic case to constitute the assay. On detecting, the detected sample is added on the sample pad of the test paler and the immunoreaction result is directly observed to perform detection. The assay is used for screening or clinical diagnosis of the HIV infection and at the same time the HIV antigen and antibody are detected, the simpler antibody detection can effectively reduce the window phase for detecting the HIV, with features of quick reaction, easy operation, economy and practicality, suitable for insitu detecting.

The invention discloses a fluid-solid coupled similar simulation experimental platform which comprises a box body top plate, a box body bottom plate, a front baffle, a rear baffle, a left lateral insertion plate and a right lateral insertion plate, wherein the box body bottom plate, the front baffle, the rear baffle, the left lateral insertion plate, the right lateral insertion plate and the box body top plate form a closed box body structure of the experimental platform; a transmission bar is arranged in the box body structure and is positioned above the box body bottom plate; a mining steel plate is arranged above the transmission bar and is movably connected with the transmission bar; a coal layer is laid on the mining steel plate; a simulated rock stratum is arranged above the coal layer; a data monitoring system is arranged in the simulated rock stratum; a pressure-bearing steel plate covers the top of the simulated rock stratum; and a hydraulic jack is arranged between the pressure-bearing steel plate and the box body top plate. The experimental platform disclosed by the invention is simple in structure and low in manufacturing cost, a research worker can directly observe and record the movement and deformation conditions of overlying rock and the water permeability condition in the rock stratum cracks under the mining action, and the influence of coal mining on permeability rules of surface water and karstic water is analyzed.

A fire-control system comprising -a housing, -a light channel, through which a user may directly observe a target and receive visually displayed information simultaneously, said light channel comprising partially reflective optics a light source, for visualization of a reticle to the user via the partially reflective optics, -means for receiving a measure of the distance to the target a processor, for determining the adequate position of the reticle, based on the distance to the target, and for controlling the light source to emit light so that the reticle is visualized at the adequate position, wherein the light source is an array capable of selectively emitting light in well defined locations on its surface.

The invention relates to an electrolytic extraction and detection method of nonmetallic inclusion in steel by utilizing an organic solution. The method comprises the following process steps: (1) preparing electrolyte; (2) preparing and electrolyzing a steel sample: soaking the steel sample containing the inclusion into the electrolyte in an electrolytic cell; arranging a salt bath beside the electrolytic cell; erecting a salt bridge between the salt bath and the electrolytic cell; inserting a calomel electrode into the salt bath; inserting a calomel electrode in the salt bath; using the positive electrode of the steel sample, connected with a direct current stabilized power supply, as the anode, using a platinum wire as an electrolysis cathode, charging inert gas, particularly referring to argon; and (3) separating: pouring the electrolyte left after the electrolysis of the steel sample in the step (2) into a funnel which is filled with filter paper; arranging a vacuum filtration device which is loaded with a polytetrafluoroethylene membrane at the position tightly attached to the liquid down port of the funnel; separating the inclusion from the steel sample under the state that the vacuum filtration device is vacuumized; and transferring the polytetrafluoroethylene membrane which is distributed with the inclusion to a scanning electron microscope for detection. In the method provided by the invention, the inclusion can be extracted out of the steel without being damaged; and the three-dimensional shape of the inclusion is directly observed.

This invention is to provide a method and a system which, by making use of a stress luminescent material, renders it possible to directly observe a stress distribution on the base of a real time without electrical contacts, and to easily measure a stress or a stress distribution and a stress image. Essentially, the invention comprises the steps of adding a stress to a tested body containing a stress luminescent material whose light emission is proportional to the stress, making visually observable a stress distribution over the tested body in accordance with a luminous intensity of the stress luminescent material contained in the tested body, measuring the luminous intensity of the luminescent material of the tested body, comparing the measured value of the luminous intensity with certain correlation data indicating a relationship between the luminous intensity of the stress luminescent material and a stress, thereby obtaining a stress value or a stress distribution over the tested body.

The invention provides a simulation experimental apparatus for a lubrication condition of an antifriction bearing and a measuring method thereof. The apparatus comprises an operating platform; a drive unit is arranged on the operating platform and is used for driving an elastodydrodynamic contact couple unit; and the elastodydrodynamic contact couple unit is connected with a loading unit; meanwhile, the elastodydrodynamic contact couple unit and an optical measurement unit are cooperated with each other. According to the measuring method of the apparatus, the method comprises the following steps that: a preparation process, a localization and adjustment process for an antifriction bearing; a driving process; and a measurement analysis process. A motion state of the antifriction bearing can be observed directly; simultaneously, a lubrication state of a lubrication oil film in the antifriction bearing are measured and analyzed, so that experimental data are provided for a theoretical research and improvement on an engineering technology.

A process for spatially distributing a population count within a geographically defined area can include the steps of logically correlating land usages apparent from a geographically defined area to geospatial features in the geographically defined area and allocating portions of the population count to regions of the geographically defined area having the land usages, according to the logical correlation. The process can also include weighing the logical correlation for determining the allocation of portions of the population count and storing the allocated portions within a searchable data store. The logically correlating step can include the step of logically correlating time-based land usages to geospatial features of the geographically defined area. The process can also include obtaining a population count for the geographically defined area, organizing the geographically defined area into a plurality of sectors, and verifying the allocated portions according to direct observation.

The invention relates to a molecular imprinting photonic crystal for detecting glucose, which belongs to the technical field of applied chemistry and clinical analysis test. A method comprises the following steps: firstly, inserting a substrate subjected to hydrophilic treatment into PMMA colloidal pellet solution, and self-assembling pellets on the substrate to obtain a three-dimensional photonic crystal template; secondly, dripping molecular imprinting pre-polymerization solution on the edge of the three-dimensional photonic crystal template, and thermally polymerizing the template; and finally, cleaning the glucose imprinting template to obtain a glucose molecular imprinting photonic crystal template. The molecular imprinting photonic crystal has specific glucose adsorption performance, enables direct observation of the change, and fulfills the aim of real-time, quick and convenient detection.

A system that accepts and displays user input from a touch sensitive input device, such as phone touchscreen, while a user is wearing a head mounted display. Since the user cannot directly observe the input device, the system generates a virtual touchscreen graphic showing the location of the user's touch, and displays this graphic on the head mounted display. This graphic may include a virtual keyboard. Embodiments may recognize specific gestures to initiate input, which cause the virtual touchscreen graphic to be displayed on the display, for example as an overlay onto the normal display. The virtual touchscreen graphic may be removed automatically when the system recognizes that an input sequence is complete. The input device may also have position and orientation sensors that can be used for user input, for example to control a tool or weapon in a virtual environment or a game.

An abnormality detection support device, suitable for a case where rescue operations are made under situations that visibility is disturbed by smoke due to fire, includes an infrared camera, a display which, at least when the infrared camera is in use, comes to be positioned in front of a user's eyes and reproduces an image taken by the infrared camera thereon and a face protector or a helmet, on which the infrared camera and the display are provided, and the infrared camera and the display are arranged to be within an outline of the user's head in a front view when the device is put on the user. The present invention can, therefore, provide the abnormality detection support device which enables an operator to work with both hands available while directly watching the infrared image even under a circumstance that smoke or the like due to occurrence of fire disturbs the field of vision of the operator, and has excellent usability.

The invention discloses an indoor light emitting diode (LED) illuminating lamp, which comprises a support body with a reflective curved surface. A bent part is formed on the edge of the reflective curved surface, and is extended substantially towards the edge of the opposite side of the reflective curved surface. A light emitting diode module is fixed on the bent part, and cannot be directly observed at any angle, relative to the reflective curved surface, of the support body. In addition, an electric connection device is also arranged on the support body. The arrangement of a non-light tight sealing cover on the support body is avoided. The indoor LED illuminating lamp has a light weight, a portable structure and a good illumination effect, does not produce glare, and is convenient to arrange and maintain and particularly suitable for indoor illumination.

The invention relates to a synchronous grouting simulation test platform of a shield tunneling machine, comprising a soil tank, a simulation tube piece, a simulation shield tail, a propelling hydraulic cylinder, a guiding barrel, a transparent outer barrel, a soil pressure sensor, a camera and a grouting pump, wherein the axis of the guiding barrel is horizontally and fixedly connected to the left side wall of the soil tank, one end of the transparent outer barrel is coaxially and fixedly connected with the guiding barrel, the other end is fixedly connected with the right side wall of the soil tank, the transparent simulation tube piece is coaxially sleeved in the transparent outer barrel and is fixedly connected with the right side wall of the soil tank, the camera is arranged in an inner cavity of the simulation tube piece, the soil pressure sensor is arranged on the barrel wall of the simulation tube piece, the simulation shield tail is coaxially sleeved in the periphery of the simulation tube piece and can axially slide along the inner barrel wall of the guiding barrel and the outer barrel wall of the simulation tube piece, a grouting hole is arranged in the barrel wall of the simulation shield tail and is communicated with the grouting pump, and the propelling hydraulic cylinder can drive the simulation shield tail to do reciprocating motion. The invention can dynamically simulate and directly observe the whole process of synchronous grouting of the shield tunneling machine under different working conditions, thereby providing conditions for the test and the theoretical study of a synchronous grouting technique of the tunneling machine.

A veno-merse / harvester device having a handle portion, a hollow shaft portion, and a cutting portion. A fixed cannula system incorporated in the device improves the hydrostatic pressure, which allows efficient hydro-dissection with less retrograde leak of tumescent fluid and facilitates the separation of the vein from surrounding tissues with less bleeding. The veno-merse / harvester device may incorporate a camera system to allow direct visualization of the side branches to be ligated during a procedure. The self-adjustable cutting tip facilitates the forward advancement of the veno-merse / harvester device safely over a dilated portion of a vein.

A method and apparatus are presented for a laser tool used for direct indication of a level surface. This embodiment may also be used to transfer a level elevation from one level surface to a neighboring surface. The device may also be used to indicate the degree of flatness of a surface by direct observation. An alternative embodiment can provide a direct indication of plumb surfaces.

The invention discloses a wall surface roughness detection apparatus. The wall surface roughness detection apparatus includes a base plate, wherein a vertical plate is vertically fixed at the upper end of the base plate; a top plate is fixed at the upper end of the vertical plate; support rods are horizontally fixed on the upper and lower ends of one side of the vertical plate, and cross bars arehorizontally fixed on the upper and lower ends of the other side of the vertical plate; a hopper is fixed on the upper end of the top plate; two cavities are arranged in the hopper; a sleeve is slidably connected with each cross bar; a vertical bar is fixed between the sleeves; the vertical bar is made of iron material, and a handle is fixed on the vertical bar; the each sleeve is locked through abolt which is in threaded connection with the sleeve; a retaining plate A for preventing the sleeve from falling off is fixed on each cross bar; a plurality of detecting rods are inserted in the vertical plate horizontally; a plurality of cavities corresponding to the detecting rods are arranged in the vertical plate; one end, located on the corresponding support rod, of each detecting rod is connected with a plurality of balls in a rolling manner; and during the movement detection process, the rough locations of the wall can be marked at the same time, and after the detection is completed, the wall mark can be directly observed, so as to obtain the determination result which is clear at a glance, and at the same time, the mark is more conspicuous, thus being convenient to repair the rough parts in the later stage.

The invention provides a gas chromatographic fingerprint method for fast distinguishing edible oil, comprising the following steps of: A. establishing a fingerprinting for the volatile constituents of the edible oil: the edible oil with the same origin and brand is used as a proof sample and the gas chromatographic fingerprinting of the volatile constituents thereof is established by gas chromatographic analysis; and B. detecting samples: an edible oil sample to be detected is taken and treated with sampling with the proof sample under the same condition to obtain the fingerprinting of the detected sample, the fingerprinting of the two is taken as the qualitative base by the analysis of a direct observational method and fingerprinting software. By the observation of the methodology, the fingerprinting made by the volatile constituents of the edible oil proves that the precision, the stability and the reproducibility thereof all have better application prospect, thus being suitable for generalization in the technical field of food safety detection.

The invention provides protein subcellular localization assays using split fluorescent protein systems. The assays are conducted in living cells, do not require fixation and washing steps inherent in existing immunostaining and related techniques, and permit rapid, non-invasive, direct visualization of protein localization in living cells. The split fluorescent protein systems used in the practice of the invention generally comprise two or more self-complementing fragments of a fluorescent protein, such as GFP, wherein one or more of the fragments correspond to one or more beta-strand microdomains and are used to “tag” proteins of interest, and a complementary “assay” fragment of the fluorescent protein. Either or both of the fragments may be functionalized with a subcellular targeting sequence enabling it to be expressed in or directed to a particular subcellular compartment (i.e., the nucleus).

The invention discloses a physical testing method capable of directly observing the internal deformation of a rock mass model, which belongs to a physical testing method for rock mass models. The method is implemented through mixing three industrial materials, i.e. silicon powder, liquid paraffin and n-tridecane at a mass ratio of 1:0. 836:0.702 so as to form a transparent rock mass similar material; then, pouring the transparent rock mass similar material into a rock mass model testing device for many times to carry out vacuum-pumping treatment, so that air in the similar material is discharged, and in the process of pouring for vacuum-pumping, regularly paving colored homogeneous silicon powder particles on several planes of the inside of a rock mass model so as to form artificial spot-making planes; and after a transparent rock mass model is completely manufactured, carrying out displacement tracking monitoring on artificial colored particles in the model in the process of testing by using a digital camera photogrammetry technology, so that rock mass deformation evolving data of each key part in the model is obtained. The method disclosed by the invention has the advantages that the direct observation on the internal deformation of a rock mass is realized; and the method can monitor full-field deformation, and is simple and flexible, economic in use, good in stability, and easy to promote.

The invention relates to a welding deformation control aid of a large-size stainless steel cylinder, comprising an inner arc flat panel, an outer arc flat panel and jack screws, wherein the inner arc flat panel and the outer arc flat panel are flat panels one side of which is an arc side, and the arc radiuses of the arc sides are the same as that of the cylinder; the jack screws are fixedly connected to both sides of points of the plat panels opposite to a longitudinal welding line of the cylinder; and the top ends of the jack screws face towards the arc sides of the plat panels. When in use, the assembly datum lines of the inner circumference and the outer circumference of the cylinder are drawn out on a welding platform, and the arc segment of the cylinder is hung on the platform and takes the places according to the datum lines; the lengths and the angles of a non-line length segment at both sides of the longitudinal line under a free state are measured, and the aid is selected according to the non-line lengths and the angles; the aid is spot welded on the cylinder, and the longitudinal line of the cylinder is alternately welded; and the welding order and the jack screws on the aid are adjusted according to the deformation condition of the longitudinal line. The invention has the advantages that the working procedures of mechanical shape correction and the hot shape correction after welding of the cylinder are avoided; the deformation in a welding process can be directly observed and regulated by taking technical measures; and the aid has simple structure and use method.

The invention relates to an alignment loading device used for stretching test of nanoscale, micron-size thin film materials, which comprises a reverse thread alignment loading framework and a flexible hinge loading sensing parts; the reverse thread alignment loading framework comprises a base plate, two vertical plates, two guide bars, two slide plates, two guide groove blocks, an adjusting leading screw and a handwheel, a left-right turning screw rod thread is arranged on the adjusting leading screw between the two vertical plates, central leading screw apertures on two slide plates are respectively cooperated with the left-right turning screw rod thread on the adjusting leading screw and perform a synchronous relative movement along two guide bars; the flexible hinge loading sensing part has an integral type framework structure, wherein two S-shaped sensing parts used for pasting foil gauges are symmetrically arranged in the central part. The invention has the advantages of compact structure and small size, and is suitable for directly observing and measuring under a microscope; the flexible hinge is connected with the framework structure by integrating with a sensor, which can improve the measure precision, as well as measure and evaluate the interface combination performance of the nanoscale, micron-size thin film substrate structure test piece and tensile fracture performance of the films.

A method and apparatus are presented for a laser tool used for direct indication of a level surface. This embodiment may also be used to transfer a level elevation from one level surface to a neighboring surface. The device may also be used to indicate the degree of flatness of a surface by direct observation. An alternative embodiment can provide a direct indication of plumb surfaces.

The invention relates to an evaluation apparatus and a method of supercritical CO2 emulsion stability. The evaluation apparatus comprises a reaction vessel; a stirrer is arranged in the reaction vessel and on the bottom of the reaction vessel; the top of the reaction vessel is connected with a carbon dioxide branch and a sample input branch via pipelines; the carbon dioxide branch is provided with a first intermediate container, a gas booster pump, and a CO2 gas storage tank; the sample input branch is provided with a water container, a constant-flux pump, and a second intermediate container; the bottom of the reaction vessel is provided with a sample outlet; the sample outlet is connected with a sampler via pipelines; a microscopic camera is arranged right above and oppositely to the sampler; and the microscopic camera is connected with a computer via data lines. The evaluation apparatus is capable of preparing supercritical CO2 emulsion under high-temperature and high-pressure conditions, can be used for direct observation and measuring on CO2 emulsion stability under supercritical states, and is capable of realizing evaluation on stability of supercritical CO2 emulsion.