Abstract: The present invention is directed to combination immunoassays, reagents and kits for simultaneous detection of HCV antigens and anti-HCV antibodies in a sample. The combination immunoassays of the present invention employ a non-ionic detergent that effectively exposes or releases the HCV core antigen from virions in a sample without interfering with the performance of other reagents such as the capture of anti-HCV antibodies by recombinant HCV antigens.

Abstract: A near-bit tool attitude MWD apparatus includes measurement sensors and a measurement circuit. The measurement sensors transmit measured signals to the measurement circuit, and the measurement circuit processes and calculates the signals to obtain attitude data. The measurement sensors include a triaxial accelerometer, a triaxial gyroscope, a triaxial magnetic sensor and a temperature sensor, the measured data of the triaxial accelerometer, the triaxial gyroscope and the triaxial magnetic sensor are respectively corrected using the measured data of the temperature sensor, a first attitude angle is calculated using the corrected measured data of the triaxial accelerometer and the triaxial magnetic sensor. Quaternions are initialized using the first attitude angle, and the initialized quaternions are subjected to time updating according to the measured data of the triaxial gyroscope, and further an attitude angle is calculated utilizing the updated quaternions.

Abstract: A apparatus for downhole near-bit wireless transmission includes a bit connecting housing, a mud motor connecting housing, an insulating sub made of an insulating material. The insulating sub is serially connected between the bit connecting housing and the mud motor connecting housing to electrical insulate the bit connecting housing and the mud motor connecting housing from each other. The bit connecting housing and the mud motor connecting housing respectively form an electromagnetic transmitting positive pole and an electromagnetic transmitting negative pole. The mechanical apparatus further includes measurement units, which are configured to acquire parameters measured near the bit and a data transmitting unit, which is configured to realize wireless transmission; and the data transmitting unit is configured to receive and transmit the parameters measured near the bit.

Abstract: A receiving apparatus for downhole near-bit wireless transmission emission includes an electrical isolation drill collar and an internal electrical isolation short tube. The insulating subs are serially connected and disposed in the middle of the electrical isolation drill collar and the internal electrical isolation sub to realize electric isolation. The electrical isolation drill collar is electrically coupled with the internal electrical isolation short tube through a lantern stabilizer. The receiving apparatus further includes a wireless transmission receiving unit. The electrical isolation drill collar and the internal electrical isolation short tube of the receiving apparatus both have an electrical isolation function. The insulating subs in the electrical isolation drill collar and the internal electrical isolation short tube are non-detachable, and can meet downhole requirements for high torsion and high-pressure sealing property.

Abstract: A near-bit dynamic well deviation angle measurement apparatus includes a circuit board and 2n+1 accelerometers. One accelerometer is installed in an axial direction of a drilling tool and forms n sets of three-axis orthogonal installation together with other 2n accelerometers. The accelerometer installed in the axial direction measures Az?, and the remaining accelerometers respectively measure n X-axis radial components and n Y-axis radial components corresponding to the n X-axis radial components. A filter and a data processing unit are integrated on the circuit board. The circuit board acquires signals in which the components are eliminated by the accelerators in real time, and further high-frequency vibration and impact interference in the signals are filtered out by using the filter to obtain non-interference gravitational acceleration components Ax, Ay and Az, and further a well deviation angle is calculated.

Abstract: A near-bit constant-power wireless short-distance transmission apparatus includes a transmitting portion and a receiving portion. The transmitting portion is connected to a near-bit measurement sub while the receiving portion is connected to a measurement while drilling system. The transmitting portion processes data received by the bit measurement sub and then transmits it to the receiving portion. The receiving portion further processes the information and then transmits it to the measurement while drilling system. An insulating sub is inserted in the transmitting portion and separates the transmitting portion into a transmitting positive pole and a transmitting negative pole, which become electrically isolated from each other. Another insulating sub is inserted in the receiving portion and separates the receiving portion into a receiving positive pole and a receiving negative pole, which become electrically isolated from each other.

Abstract: A Treponema pallidum triplet antigen construct is disclosed which includes three Treponema pallidum antigens (TP15, TP17, and TP47), as well as a ten amino acid leader sequence (tag 261) and human copper zinc superoxide dismutase (hSOD). This construct is optimized for in vitro diagnosis of syphilis infection. Plasmids containing DNA encoding the triplet antigen, host cells, production methods, detection methods, and kits are also disclosed.

Abstract: Modified hepatitis C virus polypeptides are described. The polypeptides include the HCV NS4a domain and modified NS3 domain. The polypeptides retain conformational epitopes. HCV immunoassays including the polypeptides are also described.

Abstract: The present disclosure relates to a technical field of a security detection device, and particularly, to a security detection system, comprising one or more detection devices, wherein the detection device comprises a first ray emitter, a ray receiver, and a movable frame, wherein the first ray emitter comprises a first ray source for generating first detection rays and is provided at a bottom portion of the movable frame, so that the first detection rays can penetrate through a detected object from a bottom of the detected object; the ray receiver comprises a ray detector provided on the movable frame, for correspondingly receiving the first detection rays having penetrated through the detected object; and the movable frame is movable in a direction in which the first ray emitter and the ray receiver are capable of moving through a detection region for the detected object.

Abstract: Systems and methods, including computer software adapted to perform certain operations, can be implemented for remotely defining security data for authorizing access to data on a client device. Permission indicators are associated with a sequence of instructions, and a protected activity is associated with one or more of the permission indicators and with an instruction within the sequence of instructions. The one or more permission indicators and the sequence of instructions are provided to a remote device. The remote device determines whether execution of the instruction is permitted based, at least in part, on the one or more permission indicators, and the remote device performs the protected activity if execution of the instruction is permitted.

Abstract: The invention relates to a device for detecting the thickness and crown of plates and strips, belonging to the field of nuclear technology applications. The device comprises a C-frame; two ray source mounted in an upper arm of the C-frame and distributed at an interval along the width direction of a steel plate/strip; two rows of gas-pressurized ionization chamber detector arrays mounted in a lower arm of the C-frame and distributed at an interval along the moving direction of the plate/strip; collimators mounted below the two ray source, the collimators enabling the rays of each ray source to only irradiate to a corresponding row of detectors; pre-amplifier modules connected with the detector arrays; a data collector connected with the pre-amplifier modules; a data processing and displaying computer connected with the data collector; and a cooling water and pressurized air service system and a control system for ensuring system operation and monitoring.

Abstract: A casting method and cast article are provided. The casting method includes providing a casting furnace, the casting furnace including a withdrawal region in a lower end, positioning a mold within the casting furnace, positioning a molten material in the mold, partially withdrawing the mold a withdrawal distance through the withdrawal region in the casting furnace, the withdrawal distance providing a partially withdrawn portion, then reinserting at least a portion of the partially withdrawn portion into the casting furnace through the withdrawal region, and then completely withdrawing the mold from the casting furnace. The reinserting at least partially re-melts a solidified portion within the partially withdrawn portion to reduce or eliminate freckle grains. The cast article includes a microstructure and occurrence of freckle grains corresponding to being formed by a process comprising partially withdrawing, reinserting, and completely withdrawing of a mold from a casting furnace to form the cast article.

Abstract: A casting method and cast article are provided. The casting method includes providing a casting furnace, the casting furnace including a withdrawal region in a lower end, positioning a mold within the casting furnace, positioning a molten material in the mold, partially withdrawing the mold a withdrawal distance through the withdrawal region in the casting furnace, the withdrawal distance providing a partially withdrawn portion, then reinserting at least a portion of the partially withdrawn portion into the casting furnace through the withdrawal region, and then completely withdrawing the mold from the casting furnace. The reinserting partially re-melts a solidified portion within the partially withdrawn portion to fill pores formed therein with the molten material. The cast article includes a microstructure and a porosity corresponding to being formed by a process comprising partially withdrawing, reinserting, and completely withdrawing of a mold from a casting furnace to form the cast article.

Abstract: A method for filling closed regions in a drawing using a region filling tool that may appear as a paint bucket. Rather than independently selecting regions to fill or filling based on style-by-layer techniques, the user selects a seed region such that other regions of the drawing are filled if parameters of the other regions match the parameters of the seed region. Matching criteria parameters may include an exact match parameter, a shape matching parameter, a layer matching parameter, and a line weight matching parameter. The parameters may be used alone or in conjunction with other parameters. In this manner, multiple regions in the drawing that are similar to the seed region may be filled using one interaction with the region filling tool. This approach allows the user to more efficiently and intuitively fill regions in the drawing.

Abstract: The invention relates to novel bimetallic and trimetallic catalysts, their manufacture and use in both steam reforming and oxidative steam reforming of liquid fuels such as jet fuels, diesel fuels and gasoline to produce synthesis gas and/or hydrogen for fuel cell applications. The invention further relates to manufacture of synthesis gas and/or hydrogen gas for chemicals synthesis and fuel processing. The catalysts have high sulfur tolerance and carbon resistance when used in steam reforming and/or oxidative steam reforming of heavy hydrocarbon fuels.

Abstract: Systems and methods, including computer software adapted to perform certain operations, can be implemented for preventing content received from non-trusted sources from accessing protected data. A sequence of instructions and multiple permission indicators associated with the sequence of instructions are received. One or more of permission indicators are associated with a protected activity. An instruction within the sequence of instructions associated with the protected activity is identified. A determination is made whether execution of the identified instruction is permitted based, at least in part, on the one or more permission indicators, and the protected activity is performed if execution of the identified instruction is permitted.

Abstract: This invention relates to the field of immunology and more specifically relates to antiphytase monoclonal antibodies and immunoassay methods for the detection of a phytase from or derived from Aspergillus niger (phyA2) phytase, in particular, EH10a, FA7, AF9a and CC1 antiphytase antibodies. The invention further relates to hybridoma cell lines that produce antiphytase monoclonal antibodies.

Abstract: A Treponema pallidum triplet antigen construct is disclosed which includes three Treponema pallidum antigens (TP15, TP17, and TP47), as well as a ten amino acid leader sequence (tag 261) and human copper zinc superoxide dismutase (hSOD). This construct is optimized for in vitro diagnosis of syphilis infection. Plasmids containing DNA encoding the triplet antigen, host cells, production methods, detection methods, and kits are also disclosed.

Abstract: The present invention is directed to combination immunoassays, reagents and kits for simultaneous detection of HCV antigens and anti-HCV antibodies in a sample. The combination immunoassays of the present invention employ a non-ionic detergent that effectively exposes or releases the HCV core antigen from virions in a sample without interfering with the performance of other reagents such as the capture of anti-HCV antibodies by recombinant HCV antigens.