70results about How to "Useful measurement" patented technology

The present invention is suitable for use in determining symmetry in images, namely 2D images or 3D images, which comprise 2D images slices. In a preferred form, a method is disclosed for extracting a midsagittal plane MSP of human brains from radiological images. The method includes the steps of: 1) determining axial slices to be processed from said radiological images; 2) analysing said axial slices to determine fissure line segments; and 3) calculating plane equation of MSP from said fissure line segments.

An apparatus can be conveniently and temporarily attached to a tape measure to aid in measuring a workpiece. The apparatus has a means of engaging a workpiece at one end of a length to be measured, and has a means of removably attaching to the tape measure. The attachment mechanism consists of a rigid, substantially flat member which is designed to rest under the tape, with two tabs protruding upwards from said rigid member. Each tab has at least one kerf formed in the side of that tab which is adjacent to the tape when the rigid member rests under the tape, so that the curving edges of the tape fit into those kerfs, holding the apparatus in place. In this manner, the apparatus is conveniently attachable to and removable from the tape. Furthermore, while the apparatus is attached to the tape, the apparatus adds stability to the tape, by reinforcing the position of the curving edges of the tape. Also, the apparatus can be conveniently slid along the tape to whatever position is appropriate for engaging a workpiece to be measured. The engagement mechanism of the apparatus consists of a rigid, substantially flat member which is attached to the attachment mechanism at a substantially ninety degree angle, so that the rigid engagement member is substantially perpendicular to the tape. One surface of the engagement member is designed to rest against and engage a workpiece to be measured, in a manner which does not harm or mar the workpiece. The surface engaging the workpiece can be tacky, or can have a protrusion designed to insert into a hollow workpiece, such as a pipe.

An environmentally sensitive membrane binding polypeptide, pH (low)-sensitive membrane peptide (pHLIP) has improved insertion kinetics balanced with solubility to selectively target acidic tissues.

A novel device, method and systems disclosed managing the thermal challenges of LIBS laser components and a spectrometer in a handheld structure as well the use of simplified light signal collection which includes a bare fiber optic to collect the emitted light in close proximity to (or in contact with) the test material. In one example embodiment of the handheld LIBS device, a burst pulse frequency is 4 kHz is used resulting in a time between pulses of about 250 μs which is a factor of 10 above that of other devices in the prior art. In a related embodiment, an active Q-switched laser module is used along with a compact spectrometer module using a transmission grating to improve LIBS measurement while substantially reducing the size of the handheld analyzer.

Systems and methods for acquiring seismic data are described, one system comprising one or more seismic sources, a plurality of sensor modules each comprising a seismic sensor configured to sample analog seismic data, each module comprising a comparing unit comprising software; wherein the software in each module tests clock quality by running a sigma-delta modulator from two different clock sources in the node and compares a noise-floor of the modulator when using the different clocks.

A tape measure for measuring the distance between a first point and a second point. The tape has a flexible, elongated blade. The blade has a plurality of sets of markings and numbers imprinted thereon which correspond to units of measure. The first set of markings consist of true-size indicia for measuring true distances. The second and subsequent sets of markings consist of indicia divided at increments thereon to be utilized for measuring distances directly from drawings prepared at a reduced scale. The tape measure provides a single tool for measuring distances from reduced scale drawings without making calculations and also for measuring true-size distances in construction layout. Construction errors and delays are reduced through the use of this combination device.

A system and method for improved vertical handoff between different types of wireless network. Network allocation vector occupation and packet collision probability are used as quality of service measures, enabling vertical handoffs to be delayed until actually beneficial to quality of service. Improved wireless network cell boundary detection in vertical handoff scenarios is achieved with a Fourier-based technique in conjunction with an adaptively determined minimum operating signal strength threshold. Improved wireless network cell boundary detection enables vertical handoffs from high quality of service networks to be delayed as long as possible. Together, practical wireless network quality of service measures and improved detection of wireless network cell boundaries in vertical handoff scenarios reduce the rate of unnecessary vertical handoff resulting in higher overall quality of service experienced by a mobile computing device roaming between wireless network types.

A multi-purpose squaring and leveling tool comprising a generally trapezoidal body, angled corners, and leveling inserts. The tool may be used for tradesman, pipe fitters, and home carpenters as a means of setting joints and other construction or repair. The shape of the tool allows for the squaring and leveling of joints around obstacles which may present barriers to traditional squaring tools.

A fiber Bragg grating (FBG) interrogation method allows for high frequency dynamic measurement. The method may utilize a broad band light source connected to the sensing elements. Each sensing element may comprise two wavelength matching FBGs, a coupler, and a photodiode. The FBG closest to the light source may attenuate the central wavelength in the transmission spectrum and thus the reflection spectrum of the second FBG. Variations in intensity of the second FBG may be measured by the photodiode and can be calibrated to the desired measurands.

A multi-well plate for use in Raman spectroscopy includes a substrate and a metallic layer. The substrate defines a plurality of wells in a top surface thereof. The metallic layer is disposed on a bottom wall of each of the wells in the substrate. The substrate may comprise a material selected from the group consisting of glass and plastic. Each of the wells in the substrate has a diameter of about 0.02 to 10 mm and a depth of about 0.1 to 5 mm above the metallic layer for reception of about a droplet of an analyte

A method for measuring the isolation resistance between a chassis and a battery terminal in an electric vehicle. The method can include measuring an open voltage (VP(open)) of the positive terminal; measuring an open voltage (VN(open)) of the negative terminal; measuring a voltage (VN(S1 closed)) between the negative terminal and the chassis with switch S1 closed; measuring a voltage (VP(S1 closed)) between the positive terminal and the chassis with switch S1 closed; calculating the ratio (VP(open)/VN(closed)) of the voltages VP(open) and VN(closed); calculating the open ratio of the open voltages (VP(open)/VN(open)); calculating the difference between the ratio (VP(S1 closed)/VN(S1 closed)) and the open ratio (VP(open)/VN(open)); and multiplying the value of the test resistor (R0) by the difference between the ratio (VP(S1 closed)/(VN(S1 closed)) and the open ratio (VP(S2 open)/VN(S1 open)) to obtain the isolation resistance.