Abstract: A noise tone occurring at a blade passing frequency in a blower for an automotive HVAC system is suppressed. The blower includes a centrifugal fan and a scroll body disposed around the fan. An outlet extends from the scroll body to conduct an air flow from a cutoff point of the scroll body. An inlet is coupled to the scroll body defining an inlet throat comprising an arcuate ring extending between a base and an annular end coaxially disposed over the fan. A partial-perimeter wall extends upstream from the arcuate ring having a height between about 4% and about 6.5% of an inner diameter of the annular end. The wall spans a perimeter portion of the circumference of the throat between about 120° and about 180°. As a result, noise at the blade passing frequency is suppressed without any significant reduction in air flow.

Abstract: An air extraction system is provided for a motor vehicle. That air extraction system includes a trim air discharge outlet, an extractor and an extractor duct extending between the trim air discharge outlet and the extractor. The extractor duct is tuned to dissipate duct noise at at least one particular duct noise frequency characteristic of the extractor duct.

Abstract: The present invention presents a comprehensive advanced geological detection system carried on a tunnel boring machine.

Abstract: The invention discloses three-dimensional focusing induced polarization equipment for advance geological prediction of a water inrush disaster source in underground engineering, comprising a constant-current multiplex transmitter, an intelligent multichannel receiver, an automatic multi-electrode switch, an industrial personal computer, an observation electrode array and shielding electrodes, wherein electrodes in the observation electrode array are respectively used as a source electrode and observation electrodes; the industrial personal computer controls the constant-current multiplex transmitter to transmit currents of the same polarity to the shielding electrodes and the source electrode, so that the currents of the source electrodes are nearly directed straight ahead of a driving face under the action of the shielding electrodes; the observation electrodes are used for scanning data acquisition, and the data are fed back to the industrial personal computer through the intelligent multi-channel receiver;

Abstract: A vehicular air-handling system includes a blower assembly for a vehicle having a fan and a return-air baffle operable between a fresh-air position. The fan is in communication with a fresh-air duct and a recirculating position and the fan is at least partially in communication with a recirculating duct. A noise-attenuating end of the recirculating duct is positioned below an instrument panel of the vehicle and oriented substantially perpendicular to a portion of a floor below the instrument panel, wherein noise from the fan drawing air through the recirculating duct is directed into the floor below the instrument panel.

Abstract: The present invention discloses a tunnel construction large-scale integrated geophysical advanced detection model test device. The model test device includes a tunnel surrounding rock, a main tunnel model, a model test case, a water-containing geological structure device, a numerical control automated construction device and a main control chamber. The model test device is a large-scale integrated geophysical advanced detection model test device meeting the detection using a seismic wave method, an electromagnetic method and a direct-current electric method.

Abstract: The present invention presents a comprehensive advanced geological detection system carried on a tunnel boring machine.

Abstract: Disclosed is an advanced detector system and method using a forward three-dimensional induced polarization method for a TBM (Tunnel Boring Machine) construction tunnel. A narrow detection space of a full-face excavated tunnel is fully used, a controller controls doors of a source and measuring electrode compartment and a shielding electrode compartment to open and controls a corresponding hydraulic delivery device to automatically and quickly arrange a source electrode system, a measuring electrode system and a shielding electrode system. Under the action of a shielding current system, tomography detection supply current is directed ahead of the working face.

Abstract: A noise tone occurring at a blade passing frequency in a blower for an automotive HVAC system is suppressed. The blower includes a centrifugal fan and a scroll body disposed around the fan. An outlet extends from the scroll body to conduct an air flow from a cutoff point of the scroll body. An inlet is coupled to the scroll body defining an inlet throat comprising an arcuate ring extending between a base and an annular end coaxially disposed over the fan. A partial-perimeter wall extends upstream from the arcuate ring having a height between about 4% and about 6.5% of an inner diameter of the annular end. The wall spans a perimeter portion of the circumference of the throat between about 120° and about 180°. As a result, noise at the blade passing frequency is suppressed without any significant reduction in air flow.

Abstract: The invention discloses three-dimensional focusing induced polarization equipment for advance geological prediction of a water inrush disaster source in underground engineering, comprising a constant-current multiplex transmitter, an intelligent multichannel receiver, an automatic multi-electrode switch, an industrial personal computer, an observation electrode array and shielding electrodes, wherein electrodes in the observation electrode array are respectively used as a source electrode and observation electrodes; the industrial personal computer controls the constant-current multiplex transmitter to transmit currents of the same polarity to the shielding electrodes and the source electrode, so that the currents of the source electrodes are nearly directed straight ahead of a driving face under the action of the shielding electrodes; the observation electrodes are used for scanning data acquisition, and the data are fed back to the industrial personal computer through the intelligent multi-channel receiver;

Abstract: Disclosed is an advanced detector system and method using a forward three-dimensional induced polarization method for a TBM (Tunnel Boring Machine) construction tunnel. A narrow detection space of a full-face excavated tunnel is fully used, a controller controls doors of a source and measuring electrode compartment and a shielding electrode compartment to open and controls a corresponding hydraulic delivery device to automatically and quickly arrange a source electrode system, a measuring electrode system and a shielding electrode system. Under the action of a shielding current system, tomography detection supply current is directed ahead of the working face.

Abstract: A blower for an HVAC system of a motor vehicle. A fan is supplied with airflow by a duct having a bend adjacent to the fan that causes a low-pressure region at a face of the fan. A baffle is located immediately adjacent to the fan face and collocated with at least a portion of the low-pressure region to impede airflow through the face of the fan at that location. The baffle acts to reduce unwanted low frequency noise and improves the mechanical efficiency of the fan. The baffle covers a circular segment of the fan face and may have sound-suppressing features, such as ridges formed on at least one surfaces.

Abstract: A blower for an HVAC system of a motor vehicle. A fan is supplied with airflow by a duct having a bend adjacent to the fan that causes a low-pressure region at a face of the fan. A baffle is located immediately adjacent to the fan face and collocated with at least a portion of the low-pressure region to impede airflow through the face of the fan at that location. The baffle acts to reduce unwanted low frequency noise and improves the mechanical efficiency of the fan. The baffle covers a circular segment of the fan face and may have sound-suppressing features, such as ridges formed on at least one surfaces.

Abstract: The present invention is directed to compounds of Formula (I), and to salts thereof, their synthesis, and their use as PI3-K? inhibitors and/or PI3-K?/mTOR dual inhibitors.

Abstract: The present invention generally relates to an HVAC door and method of use for an HVAC system in a vehicle, and more specifically to an airflow distribution door for use in a vehicle climate control system configured to suppress flutter of the door.

Abstract: The present invention provides various methods for increasing beta cell mass. In certain embodiments, such methods include steps of administering to a subject an effective amount of: (a) SDF1, a polypeptide having amino acid sequence substantially homologous thereto, or a fragment thereof capable of increasing beta cell survival; and (b) GLP-1 Exendin-4, a polypeptide having amino acid sequence substantially homologous to GLP-1 or Exendin-4, or a fragment of GLP-1 or Exendin-4 capable of promoting beta cell proliferation, whereby beta cell mass is increased in the subject.

Abstract: A motor vehicle climate control system that utilizes a door to selectively open and close an inlet formed in a housing of the climate control system. The housing includes a wall having a seal surface. The seal surface is spaced outwardly from an inner surface of the wall. A seal member, typically attached to the door used to open and close the inlet, contacts the seal surface when the door is placed in a position to close the inlet.

Abstract: The present invention is directed to compounds of Formula (I), and to salts thereof, their synthesis, and their use as PI3-K? inhibitors and/or PI3-K?/mTOR dual inhibitors.

Abstract: A motor vehicle climate control system that utilizes a door to selectively open and close an inlet formed in a housing of the climate control system. The housing includes a wall having a seal surface. The seal surface is spaced outwardly from an inner surface of the wall. A seal member, typically attached to the door used to open and close the inlet, contacts the seal surface when the door is placed in a position to close the inlet.

Abstract: A method and apparatus for reducing noise levels occurring at a particular frequency in an air distribution apparatus used with an automotive vehicle having an interior compartment. The apparatus includes a noise reduction structure located in the air duct between an inlet end connected to a housing and a discharge end located in the vehicle interior compartment. The noise reduction structure is located a position spaced between the housing and the interior compartment of the automotive vehicle. The particular position of the noise reduction structure is determined based on the frequency of the noise level sought to be reduced. The method includes measuring the frequency of the noise level emitted from the discharge end of the air duct and correspondingly positioning the noise reduction structure at a spacing or distance based on the measured frequency.