161results about How to "Accurate impact" patented technology

A method of operating a security monitoring system comprises defining a group of people to receive a notification of an event taking place at a location associated with any member of the group, by a system, determining that a security event has at least potentially taken place that the members of the group need to be notified of, by the system, and notifying the members of the group of the event, via a network. Notifications of the at least potential security event may be provided to a first party of the at least potential security event and members of the group may be notified if the first party does not respond to the notification within a predetermined period of time. A system is also disclosed.

A system for measuring ground reaction force and analyzing the performance of an athlete in which force sensors are located in the athletes shoe and a three dimensional accelerometer is located adjacent the athletes centre of gravity and the signals from the accelerometer and the force sensors are recorded and used to derive the three orthogonal components of the ground reaction force (GRF). An artificial neural network is used to derive the three orthogonal components of GRIF

A system and method for improving positioning of a prosthesis, particularly prostheses having a preferred orientation with respect to a frame of reference of a patient.

The invention provides an electrical network operation risk assessment method of a wind electricity large-scale tripping. The method comprises the following steps of: simulation of a wind electricity large-scale tripping accident caused by a fault, a risk assessment of electrical network transient stability after disturbance, the risk assessment of system frequency stability after the disturbance, and the risk assessment of voltage stability after the disturbance. The method of the invention quantizes the risk of the wind electricity large-scale tripping from each aspect of the electrical network operation, so that the effects of preventing the wind electricity tripping and improving the electrical network safety are achieved.

The invention discloses an electrical property pre-test method based on structure, electromagnet and heat, namely, three-field coupling and used for an active phased array antenna, mainly aiming at solving the problem about how to separate the mechanical part, electrical part and heating part in the structure and heat design for the active phased array antenna. The method includes the following steps: the structure and T/R component temperature are defined based on the structure and heat design parameters of the active phased array antenna; an antenna finite element analysis is carried out according to the result of a temperature difference load analysis to obtain a structure distortion under the antenna heat load and environment load and to analyze the phase difference of an antenna radiation unit; an amplitude phase error of T/R component exciting current is defined with the result of heat analysis; an antenna aperture field amplitude phase distribution can be obtained through the radiation unit phase difference and the exciting current amplitude phase error; an antenna far field direction graph is figured out in virtue of the aperture field distribution and array face irradiance function; then the antenna electrical property parameters can be obtained so as to realize the couple analysis on structure, electromagnet and heat of the active phased array antenna. The invention can be used for guiding the structure design and heat design and electrical property coupling analysis and evaluation of the active phased array antenna.

A system, method, and computer program product for allowing any surgeon, including those surgeons who perform a fewer number of a replacement procedure as compared to a more experienced surgeon who performs a greater number of procedures, to provide an improved likelihood of a favorable outcome approaching, if not exceeding, a likelihood of a favorable outcome as performed by a very experienced surgeon with the replacement procedure, such as by understanding the prosthesis installation environment (e.g., cup/cavity interface) and to provide intelligent and interactive tools and methods to standardize the installation process and provide feedback regarding a quality of insertion/installation. Force sensing is included to aid in quantifying installation of an implant, particularly a cup into a pelvic bone.

A system for promoting physical activity includes at least two cameras which capture images of an object and generate image signals indicative of the captured images. A processor in communication with the cameras receives the image signals from the cameras and determines, based at least on part upon the image signals, when and in what position the object impacts a surface. The processor generates, based at least in part upon the determination of when and in what position the object impacts the surface, feedback signals indicative of feedback to be provided to a user of the system. A projector in communication with the processor receives the feedback signals and, based at least in part upon the feedback signals, displaying visual feedback to the user on the surface.

A system and method for allowing any surgeon, including those surgeons who perform a fewer number of a replacement procedure as compared to a more experienced surgeon who performs a greater number of procedures, to provide an improved likelihood of a favorable outcome approaching, if not exceeding, a likelihood of a favorable outcome as performed by a very experienced surgeon with the replacement procedure. Force sensing is included to aid in quantifying installation of an implant, particularly a cup into a pelvic bone.

The invention discloses a method for measuring volatile substance release in an interior wall coating, which comprises the following steps of: brushing the coating on two surfaces of a smooth inert substrate material twice according to the explanation of the using amount of the interior wall coating, immediately placing the material in an environmental test chamber with adjustable temperature, humidity and ventilation frequency, periodically extracting an air sample in the environmental test chamber according to the release rule of a volatile harmful substance, tracing and monitoring the release concentration of the volatile harmful substance in the sample, and making a release concentration-time curve to determine the release peak concentration and release steady-state concentration of the volatile harmful substance in the sample. The release concentration of a volatile organic compound (VOC) is detected by using gas chromatography, and the release concentration of formaldehyde is detected according to a phenol reagent method.

A micro-impact testing apparatus for measuring the impact characteristics of a microelectronics specimen exposed to an impact thereon. The apparatus comprises of a specimen holder for receiving a specimen to be tested, and an impact device. The impact device comprises of an impact head, a support member, at least one connecting element and a first flexural spring. The support member is connected to the connecting element in that the first flexural spring is firmly attached with its one end to the support member and with its other end to the connecting element. A second flexural spring, being at least substantially identical to said first flexural spring, is firmly attached with its one end to the connecting element and with its other end to the impact head so that the ends of the first and second flexural springs define, in an unloaded state of the flexural springs, a rectangle. The impact head is moveable transversally with respect to the first and second flexural springs along a linear line between a spring-loaded position and an impact position thereof. The specimen holder is aligned with the impact device such that the specimen is arranged in said impact position of the impact head so that the impact head is capable of impacting on the specimen after traveling from its loaded position towards its impact position along said linear line upon release thereof from said loaded position.

The invention discloses a mechanical double energy storage impact mechanism and a mechanical double energy storage impact method. The mechanism comprises a frame, a rotating shaft is arranged on the frame, the rotating shaft is fixedly connected with a swinging arm, the swinging arm is connected with a hammer head, a torsion spring is arranged coaxial with the rotating shaft, the swinging arm is fixedly connect to one end of the torsion spring, and the other end of the torsion spring is fixed on the frame. An electric driving mechanism and a first electromagnet are arranged on the frame, the first electromagnet is connected with a drag hook, a gear clutch is arranged on the electric driving mechanism, and a lever is movably connected to the frame and movably matched with the drag hook; and a second electromagnet is arranged on the frame through a mounting arm. The mechanism has two energy storage links, namely deformation energy storage of the torsion spring and elastic bending energystorage of the swinging arm, so that the contact stress during impacting can be effectively reduced and the working surface of a workpiece is well protected. By using the mechanism and the method, conventional heavy manual hammering can be replaced, and the labor intensity is lightened; and the mechanism can also be used for replacing the conventional starting pneumatic striker in the powder conveying process to prevent blockage.

An aiming device for a billiard cue is disclosed herein, which includes a fixing member, an extending member coupled with the fixing member at one end thereof, a parallel light source coupled with the other end of the extending member and having a projection hole for passing a parallel light beam emitted from the parallel light source, and a cylindrical lens mounted on one end of the parallel light source in front of the projection hole, whereby the parallel light beam becomes a fanned light beam after it passes through the cylindrical lens. The aiming device of the present invention can provide a high precise aiming in billiards.

The invention relates to a method for predicting the movement of FLNG (floating liquefied natural gas) by considering the rocking influence of a liquid cabin. The method comprises the following steps of 1) describing non-linear rocking of liquid in the cabin in a time domain based on a potential flow theory and a panel method to obtain the velocity potential of the rocking of the liquid in the cabin and the pressure of the liquid on the cabin wall caused by the rocking; 2) using the pressure obtained in the step 1) as external force input at the right end of an equation of motion of a ship body, considering the influence of external wave force, calculating motion response of the ship body, obtaining the position of the ship body, and updating a free liquid level; 3) using the obtained position of the ship body at the current moment and the updated free liquid level as boundary conditions of the rocking problem of the liquid in the cabin to obtain the rocking problem of the liquid in the cabin at the next moment, circulating continuously, and stopping after time is set. Compared with the prior art, the method has the advantages of shortening computation time, greatly improving the design efficiency of the liquid cabin and the FLNG and the like.

A system and method for allowing any surgeon, including those surgeons who perform a fewer number of a replacement procedure as compared to a more experienced surgeon who performs a greater number of procedures, to provide an improved likelihood of a favorable outcome approaching, if not exceeding, a likelihood of a favorable outcome as performed by a very experienced surgeon with the replacement procedure.

A system and method for allowing any surgeon, including those surgeons who perform a fewer number of a revision procedure as compared to a more experienced surgeon who performs a greater number of procedures, to provide an improved likelihood of a favorable outcome approaching, if not exceeding, a likelihood of a favorable outcome as performed by a very experienced surgeon with the revision procedure. An engine is operable in two distinctive selectable modes including a unidirectional mode providing only extractive forces and a bidirectional mode providing both extractive and insertional forces

The invention discloses an electric vehicle battery pack system convenient to disassemble and assemble. The electric vehicle battery pack system includes a battery pack, a moving track, a locking mechanism, a charging interface component and a battery pack grabbing device. The battery pack is slidably arranged on the moving track, a charging connector matched with the charging interface componentis arranged at the front end of the battery pack, the locking mechanism is used for locking or unlocking the battery pack, and the battery pack grabbing device is used for unlocking the battery pack and the moving track and installing or separating the battery pack and the moving track. According to the electric vehicle battery pack system convenient to replace provided by the embodiment of the invention, the battery pack can be fixed effectively, the impact of the battery pack on the charging interface component and the charging connector of the battery pack when the battery pack is installedon an electric vehicle can be reduced, at the same time, shaking of the battery pack during the movement of the electric vehicle is reduced, and the safety of the driving process of the electric vehicle is improved. According to the electric vehicle battery pack system convenient to disassemble and assemble, the automatic assembly and disassembly and automatic transportation of the battery pack can be realized, and the labor cost of a battery replacing station can be effectively reduced.

The invention provides a method for online detection of roll cooling, which comprises the following steps: coating a coating material with the thickness of 0.01 to 0.05 millimeter on the surface of aroll; placing the coated roll into a stander in a normal production state; jetting cooling water onto the fixed roll for 5 to 6 minutes; and judging the working condition of a roll cooling water system according to the peeling-off state of the coating material on the surface of the roll so that the cooling problems such as nozzle abrasion, blockage, deflection, frame deformation and the like can be timely discovered. The method has accuracy and timeliness, and can improve the productivity and ensure the safety of production.

A system and method for allowing any surgeon, including those surgeons who perform a fewer number of a revision procedure as compared to a more experienced surgeon who performs a greater number of procedures, to provide an improved likelihood of a favorable outcome approaching, if not exceeding, a likelihood of a favorable outcome as performed by a very experienced surgeon with the revision procedure.

The invention discloses a laboratory simulation method of atmospheric influence on wireless laser communication, belonging to the technical field of atmosphere channel wireless laser communication. According to the laboratory simulation method, through MODTRAN software and a laser atmospheric turbulence transmission numerical simulation method based on a random phase screen, laser atmospheric transmission transmittance and time-domain fluctuation data during optical signal receiving are calculated, thus generating a drive control signal of an electro-optical modulator so as to simulate atmospheric influence. Compared with the existing semi-physical atmospheric influence simulation method, the laboratory simulation method can accurately simulate the influence of beam wandering caused by atmospheric turbulence on wireless laser communication.