Abstract: A distributed acoustic sensing system and a method of obtaining acoustic levels using the distributed acoustic sensing system are described. The distributed acoustic sensing system includes an optical fiber, a light source to inject light into the optical fiber, and a photodetector to sample a DAS signal in each section of one or more sections of the optical fiber resulting from two or more points within the section on the optical fiber over a period of time. The system also includes a processor to process only a low frequency portion of the DAS signal to obtain the acoustic levels at each of the one or more sections on the optical fiber over the period of time, the low frequency portion of the DAS signal being less than 10 Hz.

Abstract: A distributed temperature sensor, a method of determining temperature, and a processing system to compute temperature are described. The sensor includes an optical fiber disposed in an area where temperature is to be measured, a primary light source to inject light into the optical fiber, and a secondary light source to inject light into the optical fiber. The sensor additionally includes a photodetector to detect backscatter light energy from the optical fiber the backscatter light energy including Stokes Raman scatter or anti-Stokes Raman scatter and primary Rayleigh scatter resulting from the primary light source and secondary Rayleigh scatter resulting from the secondary light source, and a processor to determine temperature based on a ratio of the Stokes Raman scatter or the anti-Stokes Raman scatter and a combination of the primary Rayleigh scatter and the secondary Rayleigh scatter.

Abstract: A distributed temperature sensor and a method of determining temperature are described. The distributed temperature sensor includes an optical fiber to filter or remove Stokes Raman scatter and prevent stimulated Raman scatter and a light source to inject light into the optical fiber. The distributed temperature sensor also includes a photodetector to detect light energy resulting from the light injected into the optical fiber, the light energy including anti-Stokes Raman scatter and Rayleigh scatter; and a processor to determine temperature based on a ratio of the anti-Stokes Raman scatter and the Rayleigh scatter.

Abstract: An apparatus for sensing acoustic waves below a surface of the earth includes an optical fiber disposed below the surface of the earth and having a series of sensing units along the optical fiber with each sensing unit having three or more reflectors and an optical interrogator in optical communication with the optical fiber. The reflectors in each sensing unit are positioned to provide a linearized response that approximates a sawtooth wave better than a sinusoidal wave to sense the acoustic waves in a desired dynamic range. The optical interrogator is configured to transmit an input light signal into the optical fiber and receive a reflected light signal from the optical fiber due to the input light signal in order to measure a strain on each sensing unit due to interaction with the acoustic waves and to determine a location of the sensing unit corresponding to the sensed strain.

Abstract: A system includes a scope for obtaining images of an end face of an optical fiber in a fiber optic connector. The system also includes a computing device. The computing device is configured to obtain images of the end face of the optical fiber via the scope, identify surface defects on the end face of the optical fiber based on the images, and determine insertion loss of the fiber optic connector due to the surface defects.

Abstract: A stabilizer apparatus for use with video devices that provides smooth video images. The stabilizer device comprises a gimbal system operably attached to a counterweighted pole. A video device operably attached to the top end of the pole can be balanced utilizing two or more opposing counter weights operably connected to the pole. The gimbal system is affixed to the pole and maintains the balance of the video device. A handle device attached to the gimbal system allows the stabilizer apparatus to be moved during video production, while maintaining the balance of the video device.

Abstract: The present application is directed to methods and systems for identifying small molecule compounds in mixtures using a library comprising calculated structures and corresponding calculated mass spectral fragmentation patterns of known and/or hypothetical small molecule compounds that may be in the mixture and screening of a mass spectrum of the mixture using the library to identify matching fragmentation patterns. If a mass spectral fragmentation pattern present in the mass spectrum of the mixture matches a calculated fragmentation pattern of one of the known or hypothetical compounds this confirms the identity of a compound in the mixture as the known or hypothetical compound. The method represents a platform method that can be used for a multitude of purposes related to the screening and identification of compounds in mixtures.

Abstract: An embodiment of a method of measuring temperatures includes: taking distributed acoustic sensing (DAS) measurement data by transmitting interrogation signals into an optical fiber disposed in an environment of interest, and receiving reflected signals over a selected time period from the optical fiber; processing the DAS measurement data to separate components of the DAS data associated with changes in temperature; and generating a temperature change profile for the selected time period based on the separated components of the DAS data.

Abstract: A method of monitoring fluid flow in a borehole includes measuring acoustics at a plurality of locations along a downhole assembly in a borehole and calculating a fluid flow rate at the plurality of locations along the downhole assembly based on measuring the acoustics at the plurality of locations.

Abstract: This invention relates to novel 2,3-dihydroimidazo[1,2-c]quinazoline compounds, pharmaceutical compositions containing such compounds and the use of those compounds or compositions for phosphotidylinositol-3-kinase (PI3K) inhibition and treating diseases associated with phosphotidylinositol-3-kinase (PI3K) activity, in particular treating hyper-proliferative and/or angiogenesis disorders, as a sole agent or in combination with other active ingredients.

Abstract: New digital forensic techniques and systems are disclosed. System call information is collected from a device under test (DUT) and converted to a sequence format. Thereafter, sequence alignment methods and tools can be used to investigate and identify patterns of behavior that are suspicious.

Abstract: Processes and systems for operating molten carbonate fuel cell systems are described herein. A process for operating a molten carbonate fuel cell system includes providing a hydrogen-containing stream comprising molecular hydrogen to an anode portion of a molten carbonate fuel cell; controlling a flow rate of the hydrogen-containing stream to the anode such that molecular hydrogen utilization in the anode is less than 50%; mixing anode exhaust comprising molecular hydrogen from the molten carbonate fuel cell with a hydrocarbon stream comprising hydrocarbons, contacting at least a portion of the mixture of anode exhaust and the hydrocarbon stream with a catalyst to produce a steam reforming feed; separating at least a portion of molecular hydrogen from the steam reforming feed; and providing at least a portion of the separated molecular hydrogen to the molten carbonate fuel cell anode.

Abstract: Processes and systems for operating molten carbonate fuel cell systems are described herein. A process for operating a molten carbonate fuel cell system includes providing a hydrogen-containing stream comprising molecular hydrogen to an anode portion of a molten carbonate fuel cell; controlling a flow rate of the hydrogen-containing stream to the anode such that molecular hydrogen utilization in the anode is less than 50%; mixing anode exhaust comprising molecular hydrogen from the molten carbonate fuel cell with a hydrocarbon stream comprising hydrocarbons, contacting at least a portion of the mixture of anode exhaust and the hydrocarbon stream with a catalyst to produce a steam reforming feed; separating at least a portion of molecular hydrogen from the steam reforming feed; and providing at least a portion of the separated molecular hydrogen to the molten carbonate fuel cell anode.

Abstract: A stabilizer apparatus for use with video devices that provides smooth video images. The stabilizer device comprises a gimbal system operably attached to a counterweighted pole. A video device operably attached to the top end of the pole can be balanced utilizing two or more opposing counter weights operably connected to the pole. The gimbal system is affixed to the pole and maintains the balance of the video device. A handle device attached to the gimbal system allows the stabilizer apparatus to be moved during video production, while maintaining the balance of the video device.

Abstract: A composite material is described. The composite material comprises semiconductor nanocrystals, and organic molecules that passivate the surfaces of the semiconductor nanocrystals. One or more properties of the organic molecules facilitate the transfer of charge between the semiconductor nanocrystals. A semiconductor material is described that comprises p-type semiconductor material including semiconductor nanocrystals. At least one property of the semiconductor material results in a mobility of electrons in the semiconductor material being greater than or equal to a mobility of holes. A semiconductor material is described that comprises n-type semiconductor material including semiconductor nanocrystals. At least one property of the semiconductor material results in a mobility of holes in the semiconductor material being greater than or equal to a mobility of electrons.

Abstract: A coaxial to microstrip transition is introduced in a multi layer mixed dielectric printed circuit board environment that provides a 50 Ohm impedance system between a coaxial antenna feed and a surface mount diplexer at Ku-band frequencies. The 50 Ohm transition from the coaxial antenna feed to the diplexer at microwave frequencies lossy FR-4 style laminate is provided by constructing a PCB internal coax using the center conductor of the antenna feed and a dual ring of plated through hole VIAs. The transition from the PCB internal coax to the microstrip section of the high frequency laminate PCB layer uses a “D”-style opening in the ground layer and a VIA ring arrangement between the layers to optimize or tune the performance of the transition. Additional features in the interface construction are implemented to guaranty that its microwave and mechanical performance does not degrade in extreme environmental conditions.

Abstract: The present invention relates to substituted phenoxypyridine compounds of general formula (I); in which R1, R2 and R3 are as defined in the claims, to methods of preparing said compounds, to intermediates for the preparation of said compounds, to pharmaceutical compositions and combinations comprising said compounds and to the use of said compounds for manufacturing a pharmaceutical composition for the treatment or prophylaxis of a disease, in particular of a hyper-proliferative and/or angiogenesis disorder, as a sole agent or in combination with other active ingredients.