摘要:
A submersible pumping system for downhole use in extracting fluids containing hydrocarbons from a well. In one embodiment, the pumping system comprises a rotary induction motor, a motor casing, one or more pump stages, and a cooling system. The rotary induction motor rotates a shaft about a longitudinal axis of rotation. The motor casing houses the rotary induction motor such that the rotary induction motor is held in fluid isolation from the fluid being extracted. The pump stages are attached to the shaft outside of the motor casing, and are configured to impart fluid being extracted from the well with an increased pressure. The cooling system is disposed at least partially within the motor casing, and transfers heat generated by operation of the rotary induction motor out of the motor casing.
摘要:
A device detects multi-spectral imaging by using line scan elements. The device may include an illumination module and a detection module to detect light scattered from an object illuminated by the illumination module. The device may also include an array of light sources to produce light at a plurality of different wavelengths, and create a uniform line of illumination with each of the different wavelengths. The light detection may be applied to authenticate and validate documents, such as bank notes moving along a document conveyer.
摘要:
A submersible pumping system for downhole use in extracting fluids containing hydrocarbons from a well. In one embodiment, the pumping system comprises a rotary induction motor, a motor casing, one or more pump stages, and a cooling system. The rotary induction motor rotates a shaft about a longitudinal axis of rotation. The motor casing houses the rotary induction motor such that the rotary induction motor is held in fluid isolation from the fluid being extracted. The pump stages are attached to the shaft outside of the motor casing, and are configured to impart fluid being extracted from the well with an increased pressure. The cooling system is disposed at least partially within the motor casing, and transfers heat generated by operation of the rotary induction motor out of the motor casing.
摘要:
An apparatus for inspecting a sealed container is disclosed and which includes a pulsed electron accelerator which is positioned in spaced relation relative to a first side of the sealed container, and which produces a pulsed beam of photons which passes through the sealed container and any contents enclosed within the sealed container; a detector positioned in spaced relation relative to a second, opposite side of the sealed container, and which receives the pulsed beam of photons which passes through the contents of the sealed container, and which produces an output signal; and means for developing a visible image from the output signal of the detector which depicts the contents of the sealed container.
摘要:
Substituted carbocyclic sulphonamide derivatives of formula (I), in which n is 0 or 1 and the other variables are as defined in the claims, are selective 5-HT7 receptor antagonists and are thereby effective in the treatment of a variety of neurological conditions, including depression and sleep disorders.
摘要:
Methods and compositions for detecting the assembly of complexes include providing a solution where a first portion is separated from a second portion via a submicrometer pore, submicrometer tube or channel, nanopore, or nanotube or channel. One or more submicrometer or nanometer sized object(s) is added to the first portion of the solution. Due to molecular interactions, these objects assemble to form complexes consisting of two or more submicrometer or nanometer sized objects. Passage of a complex from the first portion of the solution through the submicrometer pore, submicrometer tube or channel, nanopore, or nanotube or channel to the second portion of the solution is detected using resistive pulse sensing. This sensing methodology may comprise detecting formation of complexes in real-time and/or may comprise detecting preassembled complexes.
摘要:
The present invention relates to sulfone derivatives of formula (I): Ar—SO2—CR2R3-L-N(R1)2I wherein Ar, L, R1, R2 and R3 are as defined herein, and pharmaceutically acceptable salts and N-oxides thereof, useful in the treatment of a condition which is susceptible to treatment by modulation of 5-HT7 receptor activity, such as depression or a sleep disorder.
摘要:
The invention provides a versatile technique for machining of nanometer-scale features using tightly-focused ultrashort laser pulses. By the invention, the size of features can be reduced far below the wavelength of light, thus enabling nanomachining of a wide range of materials. The features may be extremely small, of nanometer size, and are highly reproducible.
摘要:
Described herein are various methods, devices and systems for performing asynchronous magnetic bead rotation (AMBR) to detect and monitor cellular growth and/or behavior. Cluster rotation of magnetic particles for AMBR is descried. In particular, described herein are systems for the parallel analysis of multiple wells of a sample plate. Also described herein are methods for controlling the illumination and imaging of rotating magnetic particles.
摘要:
Compounds of formula I: are potent and selective antagonists of the human 5-HT2A receptor, and hence useful in treatment of a variety of adverse conditions of the CNS.