Abstract: A holder for hydraulic brake assembly includes a holder. The holder has one end thrust by a pushing mechanism and another end connected to a brake shoe. The holder has a skirt formed on one end thereof and outwardly extending therefrom to define a receiving space in between the skirt. The pushing mechanism is selectively received in the receiving space in the skirt. The skirt is provided for stably connecting to the pushing mechanism such that the pushing mechanism is steady thrust with the holder to provide a stable brake effect and prevent wear from an unstable contact.

Abstract: A method for interpolating data. The method includes receiving data acquired at one or more locations where the data represents subterranean formations in the earth. The method also includes selecting one or more of the locations such that the selected locations are within a vicinity of an interpolation location. Next, the method includes forming a matrix of interpolation coefficients based on a first function having one or more interpolation variables, a bandwidth for an interpolation operator and one or more differences between the selected locations, wherein at least one of the interpolation variables is periodic. The method then includes forming a differences vector based on a second function having the interpolation variables, the bandwidth and one or more differences between the selected locations and the interpolation location.

Abstract: A hydraulic brake system includes a bicycle steering assembly having a head tube, a connecting member connected with the head tube and a handlebar mounted on the connecting member. The connecting member has a receiving portion disposed therein. A hydraulic device is mounted in the receiving portion. The hydraulic device includes a hydraulic braking mechanism and at least one connecting tube connected with the hydraulic braking mechanism. A braking device is adapted to mount on a wheel of the bicycle. The at least one connecting tube is connected with the braking device. Two brake levers are respectively mounted on two ends of the handlebar. Each brake lever has a brake cable connected therewith. The brake cable has one end connected to a corresponding brake lever and the other end connected to the hydraulic brake mechanism for relatively driving the brake device.

Abstract: A hydraulic caliper brake assembly for a bicycle comprises a caliper body; a first chamber installed in the caliper body; a first piston installed in the first chamber; a second piston installed in the first chamber; an inner chamber formed between the first piston and the second piston for receiving brake oil; an outer chamber installed between the second piston and the caliper body for receiving brake oil; and an outer valve installed in the second piston for switching flowing of the brake oil between the inner chamber and outer chamber. When a small force is applied, the brake oil will flow into the inner chamber; by closing the outer valve, the first piston is pushed to have the effect of speed reduction; when the braking force is increased, by opening the outer valve, the second piston is pushed to have the effect of emergent braking.

Abstract: A hydraulic brake device includes a carrier body. The carrier body is integrally molded. The carrier body has at least one assembling portion disposed thereon for assembling purpose. The carrier body has at least one connecting portion respectively extending from the at least one assembling portion. At least one hydraulic brake assembly movably is mounted on the at least one connecting portion of the carrier body. The carrier body with the at least one brake assembly are adapted to assemble with a bicycle for providing a stable assembling effect, a high structural strength, and lightweight effect.

Abstract: A hydraulic brake lever assembly includes a master cylinder, a master piston, and a floating piston. Both of the master piston and the floating piston are sealingly and movably received in the master cylinder. The master piston has a passage diametrically defined therein and extending therethrough for receiving a bias mechanism. The floating piston has a through hole for coaxially and sealingly receiving the master piston. The floating piston has two raceways radially and symmetrically extending from the through hole therein. The bias mechanism is movably disposed between the two raceways. Each raceway has a trough defined in a bottom thereof. The bias mechanism moves along the troughs and the raceways to provide the effort of multi-stage movement and different braking feel.

Abstract: A technique includes determining at least one parameter that characterizes a seismic survey in which multiple interfering seismic sources are fired and seismic sensors sense energy that is produced by the seismic sources. The determination of the parameter(s) includes optimizing the seismic survey for separation of the sensed energy according to the seismic sources.

Abstract: A hydraulic cylinder for a brake system includes a cylindrical body and a piston. The cylindrical body has a receiving space longitudinally defined therein for movably and sealingly receiving the piston. The receiving space is divided into a first chamber and a second chamber diametrically smaller than the first chamber. The piston has a first portion and a second portion. The first portion and the second portion sealingly and movably abut against the first chamber and the second chamber respectively. In a speed reduction stage the first portion interacts with the first chamber, and in an emergency brake stage the first portion and the second portion interact with the first chamber and the second chamber respectively for providing a greater braking force than in the speed reduction stage.

Abstract: A technique includes determining at least one parameter that characterizes a seismic survey in which multiple interfering seismic sources are fired and seismic sensors sense energy that is produced by the seismic sources. The determination of the parameter(s) includes optimizing the seismic survey for separation of the sensed energy according to the seismic sources.

Abstract: A reinforced disc brake rotor includes a disc rotor which has a connecting portion formed in a center thereof for adapting to be securely connected with a wheel hub. A friction portion is annularly formed on an outer edge of the disc rotor for adapting to be clamped by brake lining pads. A supporting portion is annularly formed on the disc rotor and located between the connecting portion and the friction portion. The supporting portion has a plurality of vent spaces defined therein and extending therethrough. A carbon fiber layer is laminated along an edge of each vent space in the supporting portion for reinforcing the disc rotor and reducing a weight of the disc rotor.

Abstract: A method of processing seismic data including pressure data and pressure gradient data to obtain gradients of moveout corrected pressure data, comprising applying a move-out correction function to the pressure gradient data; and adding a correction term dependent on a moveout corrected time-derivative of the pressure data and a spatial derivative of the moveout correction function. The method may be used prior to any data processing algorithm which uses pressure gradient data in which moveout correction is applied prior to the algorithm, either because the algorithm makes a zero offset assumption or because it is beneficial for the algorithm to operate on moveout corrected data to reduce aliasing.

Abstract: A method for spatially interpolating pressure values of seismic data uses known values of pressure and spatial derivatives of pressure at a plurality of irregularly spaced locations along the direction of interpolation. The interpolation preferably uses an interpolation operator calculated by assuming that an interpolated pressure value comprises a linear combination of the known pressure values at locations xi and the spatial derivatives at locations X?, with operator coefficients wi and w? respectively, and calculating the coefficients by minimising an error function.

Abstract: A technique includes obtaining seismic data acquired by seismic sensors of a composite seismic signal that is produced by the firings of multiple seismic sources. The technique includes modeling the seismic data as being a function of models for the sources and linear operators and defining desired constraints on the models. The technique includes simultaneously determining the models based on the modeling and the desired constraints. The datasets are generated based on the determined models. Each dataset is indicative of a component of the composite seismic signal and is attributable to a different one of the seismic sources.

Abstract: An injection molded preform for making a stretch blow molded container having an overall stretch ratio of from about 12 to about 16, wherein the overall stretch ratio is a product of a hoop stretch ratio and an axial stretch ratio, wherein the hoop stretch ratio is from about 5.6 to about 6.5, wherein the axial stretch ratio is from about 2.4 to about 2.7, and wherein the preform comprises a CG PET Copolymer having a free blow volume of from about 650 to about 800 ml measured at 100° C. and 90 psi using a 25 gram weight preform designed for a 500 ml container with a maximum diameter of 65 mm and a height of 200 mm from below the container finish and having a hoop stretch ratio of 5.5 and an axial stretch ratio of 2.6. This invention also relates to a method of making such preforms and stretch blow molded containers and methods of making the same.

Abstract: A hydraulic caliper brake assembly with self-adjusting feature includes a cylindrical body, an elastomer, a pushing rod, a force resisting member, and a retaining ring. The cylindrical body has a chamber. The elastomer is sealing disposed in the chamber and has a receiving hole. The elastomer provides a resilient force. The pushing rod is sealingly received in the receiving hole. The pushing rod has a shank extended therefrom and protruded into the chamber. The shank has a shoulder. The force resisting member is sleeved on the shank. The force resisting member abuts against the chamber to provide a resisting force. The retaining ring is disposed in one end of the shank. The retaining ring is moved with the pushing rod.

Abstract: A method and apparatus for predicting a plurality of surface multiples for a plurality of target traces in a record of seismic data. In one embodiment, the method includes creating a file containing information regarding a plurality of pairs of recorded traces. Each pair of recorded traces is substantially closest to a desired shot-side trace and a desired receiver-side trace. The method further includes convolving the pairs of recorded traces to generate a plurality of convolutions and stacking the convolutions for each target trace.

Abstract: A remote initiator for the remote initiation of explosive charges. The remote initiator having: (i) a transmitter with means for generating and transmitting a coded signal and input means for inputting operational commands into the transmitter for generating the coded signal, (ii) at least one receiver adapted to be connected with the explosive charges, the receiver having means for receiving the coded signal from the transmitter and input means for inputting operational commands into the receiver for generating an output signal for the remote initiation of explosive charges upon receipt of a valid transmitted coded signal, (iii) a power source for each of the transmitter and receiver, and dual processing means that are independent of each other are adapted to provide independent control of a firing circuit and adapted to synchronize with each processing means before initiation can occur so as to enhance safety and reliability of the transmitter and receiver and the initiation of the remote initiator.

Abstract: An injection molded preform for making a stretch blow molded container having an overall stretch ratio of from about 12 to about 16, wherein the overall stretch ratio is a product of a hoop stretch ratio and an axial stretch ratio, wherein the hoop stretch ratio is from about 5.6 to about 6.5, wherein the axial stretch ratio is from about 2.4 to about 2.7, and wherein the preform comprises a CG PET Copolymer having a free blow volume of from about 650 to about 800 ml measured at 100° C. and 90 psi using a 25 gram weight preform designed for a 500 ml container with a maximum diameter of 65 mm and a height of 200 mm from below the container finish and having a hoop stretch ratio of 5.5 and an axial stretch ratio of 2.6. This invention also relates to a method of making such preforms and stretch blow molded containers and methods of making the same.

Abstract: A technique includes providing seismic data that is indicative of energy that is sensed in response to a first operation of at least one seismic source in a first seismic survey and a second operation of at least one seismic source in a second seismic survey. The technique includes processing the seismic data to determine a timing of the second operation relative to the first operation, and the technique includes based at least in part of the determined timing, processing the seismic data to generate a dataset, which is indicative of the sensed energy that is attributable to the first operation and is not attributable to the second operation.