Abstract: A method for obtaining alpha-cellulose in a purity of above 85%, where said method comprises the following steps: Step 1: providing a biomass feedstock comprising: cellulose; hemicellulose; and lignin; Step 2: exposing the biomass feedstock to a delignification step performed using a modified Caro's acid creating a reaction mixture, wherein said delignification is carried out at a temperature ranging 20-40° C. for a period of time sufficient to allow the modified Caro's acid to delignify said lignocellulosic biomass and yield: a remaining solids portion having a kappa number of less than 10; and a liquid stream; Step 4: removing said liquid stream comprising depolymerized lignin and depolymerized hemicellulose from the resulting reaction mixture; Step 5: recovering said remaining solids portion comprising high purity cellulosic portion.

Abstract: A method for substantially removing constituents of a lignocellulosic biomass into separate streams, where said method comprises the following steps: Step 1: providing said lignocellulosic biomass comprising: cellulose; hemicellulose; and lignin; Step 2: exposing the lignocellulosic biomass to a delignification step performed at a temperature below 55° C. using a modified Caro's acid and generating a reaction mixture, said delignification step is carried out for a first period of time sufficient to dissolve enough of the lignin present in said lignocellulosic biomass to obtain a kappa number for the remaining solids of less than 10; Step 4: recovering, from the reaction mixture, a liquid stream comprising depolymerized lignin constituents and said remaining solids comprising cellulose and hemicellulose and having a lignin content of less than 1.5% lignin; Step 5: exposing said remaining solids to a caustic composition at a low temperature, (preferably below 60° C.

Abstract: According to one embodiment of the present invention, a computer-implemented method for autocorrelation based security monitoring and detection is disclosed. The computer-implemented method includes determining that input signal data transmitted to a white noise generator autocorrelates with itself at one or more time lags. The computer-implemented method further includes, responsive to determining that the input signal data transmitted to the white noise generator autocorrelates with itself at one or more time lags, determining whether an autocorrelation in the input signal data transmitted to the white noise generator matches one or more predetermined input signal data patterns associated with a known event or individual.

Abstract: A method of obtaining ethanol from a lignocellulosic biomass comprises delignification of a lignocellulosic biomass using a modified Caro's acid. Next a solid portion of the delignification reaction mixture is recovered wherein the solid portion comprises a substantially hemicellulose-free cellulosic component which includes at most, up to 15% w/w hemicellulose. Next, the recovered solid portion of the resulting reaction mixture is exposed to an enzyme mix comprising cellulase enzymes to create a saccharification system that breaks down the cellulose into a saccharified composition such as oligosaccharides. The saccharified composition is then fed to an organism, such as yeast, with the ability to ferment sugars into ethanol.

Abstract: According to one embodiment of the present invention, a computer-implemented method for autocorrelation based security monitoring and detection is disclosed. The computer-implemented method includes determining that input signal data transmitted to a white noise generator autocorrelates with itself at one or more time lags. The computer-implemented method further includes, responsive to determining that the input signal data transmitted to the white noise generator autocorrelates with itself at one or more time lags, determining whether an autocorrelation in the input signal data transmitted to the white noise generator matches one or more predetermined input signal data patterns associated with a known event or individual.

Abstract: Many different types of systems are utilized and tasks are performed in a marine environment. The present invention provides various configurations of castable devices that can be operated and/or controlled for such systems or tasks. One or more castable devices can be integrated with a transducer assembly, such as a phased array, that emits sonar beams and receives sonar returns from the underwater environment. Processing circuitry may receive the sonar returns, process the sonar returns, generate an image, and transmit the image to a display.

Abstract: A radar system deploys a MIMO antenna assembly containing arrays of antenna elements. The MIMO antenna assembly may be rotated by a rotational assembly. Control circuitry may be used to form one or more beams. Receiver antennae may receive reflected signals transmitted by transmitter antennae. The received signals may be processed to generate a radar image. This radar system may be used in a marine vessel.

Abstract: A radar system deploys a MIMO antenna assembly containing arrays of antenna elements. The MIMO antenna assembly may be rotated by a rotational assembly. Control circuitry may be used to form one or more beams. Receiver antennae may receive reflected signals transmitted by transmitter antennae. The received signals may be processed to generate a radar image. This radar system may be used in a marine vessel.

Abstract: Many different types of systems are utilized and tasks are performed in a marine environment. The present invention provides various configurations of castable devices that can be operated and/or controlled for such systems or tasks. One or more castable devices can be integrated with a transducer assembly, such as a phased array, that emits sonar beams and receives sonar returns from the underwater environment. Processing circuitry may receive the sonar returns, process the sonar returns, generate an image, and transmit the image to a display.

Abstract: An apparatus for providing marine information is provided including a user interface, a processor, and a memory including computer program code. The memory and the computer program code configured to, with the processor, cause the apparatus to establish data communication with a remote computing device, receive user interface display data from the remote computing device, determine a display mode for the user interface, generate a mirror user interface display based on the user interface display data and the display mode, and cause the mirror user interface display to be displayed on the user interface in a predetermined orientation based on the display mode to maximize utilization of space allocated to the mirror user interface display on the user interface.

Abstract: Many different types of systems are utilized and tasks are performed in a marine environment. The present invention provides various configurations of castable devices that can be operated and/or controlled for such systems or tasks. One or more castable devices can be integrated with a transducer assembly, such as a phased array, that emits sonar beams and receives sonar returns from the underwater environment. Processing circuitry may receive the sonar returns, process the sonar returns, generate an image, and transmit the image to a display.

Abstract: An apparatus for providing marine information is provided including a user interface, a processor, and a memory including computer program code. The memory and the computer program code configured to, with the processor, cause the apparatus to establish data communication with a remote computing device, receive user interface display data from the remote computing device, determine a display mode for the user interface, generate a mirror user interface display based on the user interface display data and the display mode, and cause the mirror user interface display to be displayed on the user interface in a predetermined orientation based on the display mode to maximize utilization of space allocated to the mirror user interface display on the user interface.

Abstract: Many different types of systems are utilized and tasks are performed in a marine environment. The present invention provides various configurations of castable devices that can be operated and/or controlled for such systems or tasks. One or more castable devices can be integrated with a transducer assembly, such as a phased array, that emits sonar beams and receives sonar returns from the underwater environment. Processing circuitry may receive the sonar returns, process the sonar returns, generate an image, and transmit the image to a display.

Abstract: Various implementations described herein are directed to a method for mitigating radar interference. The method may include receiving time domain signals from a radar device and transforming the time domain signals to time-frequency domain signals. The method may include comparing each time-frequency domain signal with one or more surrounding time-frequency domain signals to determine which of the time-frequency domain signals have interference. The method may include repairing the time-frequency domain signals having interference.

Abstract: Various implementations described herein are directed to generating a map using radar data. In one implementation, a non-transitory computer-readable medium may have stored thereon a plurality of computer-executable instructions which, when executed by a computer, cause the computer to receive radar data for a marine environment proximate to a vessel, where the radar data are received from a radar sensor disposed on or proximate to the vessel. The computer-executable instructions may further be configured to cause the computer to generate a map of one or more substantially stationary objects in the marine environment based on the radar data.

Abstract: Various implementations described herein are directed to a method for mitigating radar interference. The method may include receiving time domain signals from a radar device and transforming the time domain signals to time-frequency domain signals. The method may include comparing each time-frequency domain signal with one or more surrounding time-frequency domain signals to determine which of the time-frequency domain signals have interference. The method may include repairing the time-frequency domain signals having interference.

Abstract: An FMCW radar system includes received signal processing arranged to apply multiple window functions in parallel to a received beat signal including at least one window function having a narrower main-lobe in its frequency response than at least one other window function and said at least one other window function having relatively higher side-lobe attenuation in its frequency response, transform the output of the multiple window functions from the time domain to the frequency domain, and combine the outputs of the transforms for further processing. Both narrow frequency resolution and thus good range discrimination, and also good side-lobe attenuation to avoid close interference are achieved.

Abstract: Various implementations described herein are directed to adaptive frequency correction for pulse compression radar. In one implementation, a method may include generating a first transmission signal using a first direct digital synthesizer of a pulse compression radar system based on frequency sweep coefficients. The method may also include comparing a frequency of the first transmission signal at a feedback loop of a phase locked loop circuit and a frequency of an ideal waveform signal. The method may further include generating adaptive frequency coefficients based on the comparison, where the adaptive frequency coefficients are configured to compensate for a difference between the frequency of the first transmission signal at the feedback loop and the frequency of the ideal waveform signal. The method may additionally include generating a compensated transmission signal using the pulse compression radar system based on the adaptive frequency coefficients and the frequency sweep coefficients.

Abstract: Various implementations described herein are directed to generating a map using radar data. In one implementation, a non-transitory computer-readable medium may have stored thereon a plurality of computer-executable instructions which, when executed by a computer, cause the computer to receive radar data for a marine environment proximate to a vessel, where the radar data are received from a radar sensor disposed on or proximate to the vessel. The computer-executable instructions may further be configured to cause the computer to generate a map of one or more substantially stationary objects in the marine environment based on the radar data.

Abstract: This invention relates to electrowetting fluids, the use of these fluids for the preparation of an electrowetting displays devices, and electrowetting display devices comprising such fluids.