Abstract: Hybrid ventilation apparatuses, systems and methods are provided. Some example mechanical ventilation apparatuses include a gas delivery system, at least one oxygen concentrator for generating oxygen enriched gas for delivery to a patient, at least one pressurized oxygen source for providing oxygen for delivery to the patient, and a controller. Based at least in part on an FIO2 setting for the gas to be delivered to the patient, the controller may determine an oxygen enriched gas flow rate of the oxygen enriched gas and a pressurized oxygen source flow rate of the oxygen from the at least one pressurized oxygen source, for the gas to be delivered to the patient. The controller may control the gas delivery system to deliver the gas to the patient in accordance with the FIO2 setting, the determined oxygen enriched gas flow rate, and the determined pressurized oxygen source flow rate.

Abstract: Techniques control a utility vehicle. Such techniques involve storing electric power in a lithium battery of the utility vehicle. Such techniques further involve operating a motor controller of the utility vehicle in a normal mode in which the motor controller provides electric power from a lithium battery of the utility vehicle to an electric motor of the utility vehicle to turn one or more ground engaging members of the utility vehicle. Such techniques further involve, after operating the motor controller in the normal operating mode, operating the motor controller in a walkaway mode in which the motor controller configures the electric motor to provide braking torque.

Abstract: The invention relates to an efficient, high-throughput method of converting monoterpenes to high performance aviation fuel blendstocks. The method is a one pot, two-step process that includes a dehydration step followed by a hydrogenation step. Both steps can proceed without the use of solvents. Use of biosynthetically generated monoterpenes by this method produces sustainable aviation fuel blendstocks having applications that include use as a full-performance or an ultra-performance jet fuel blendstock.

Abstract: An example of a system for providing patient care guidance to a caregiver based on ultrasound detection of blood flow includes a defibrillator including an electrode assembly and an output device, a portable computing device communicatively coupled to the defibrillator and including an output device, a Doppler shift waveform evaluation engine disposed at the defibrillator and/or the portable computing device, and a wearable ultrasound blood flow sensor configured to couple to a patient and the defibrillator and/or the portable computing device and to generate data signals representing a Doppler shift waveform.

Abstract: An audio system and a method of determining an audio filter based on a position of an audio device of the audio system, are described. The audio system receives an image of the audio device being worn by a user and determines, based on the image and a known geometric relationship between a datum on the audio device and an electroacoustic transducer of the audio device, a relative position between the electroacoustic transducer and an anatomical feature of the user. The audio filter is determined based on the relative position. The audio filter can be applied to an audio input signal to render spatialized sound to the user through the electroacoustic transducer, or the audio filter can be applied to a microphone input signal to capture speech of the user by the electroacoustic transducer. Other aspects are also described and claimed.

Abstract: A method is described for determining a measure of geo-mechanical strength of subterranean rock at the cutting surface of a drill bit during drilling using a single measurement related to mechanical power at the drill bit. This measurement in combination with a measure of volumetric rate of rock failure defines an expression for mechanical specific energy (SMSE). SMSE is the mechanical power at the drill bit divided by volumetric rate of rock failure over any time interval. A method is described for predicting geo-mechanical and physical properties (lithology) of subterranean rock at the cutting surface of a drill bit during drilling operations using machine learning (data analytical) model(s). Said models are driven by a set of subterranean measurements related to the structural, physical response of subterranean rock mechanical failure in combination with the measure of SMSE.

Abstract: A skid plate adapted to be disposed at an underside of a vehicle is disclosed. The skid plate includes a plate portion, a duct portion, and a screen. The plate portion has a first side adapted to be disposed facing a ground and a second side disposed opposite to the first side. The duct portion is connected to the plate portion and extends away from the plate portion. Further, the duct portion defines a channel for directing a flow of air from the first side to the second side. Also, the screen is disposed at an outlet of the channel to prevent an ingress of debris to the second side.

Abstract: An apparatus includes a sensor assembly disposable in a drill string proximate a drilling motor. The sensor assembly has a first pressure sensor in fluid communication with an upstream side of a rotor in the drilling motor, a second pressure transducer in fluid communication with a downstream side of the rotor and a rotational speed sensor coupled to the rotor. A processor is in signal communication with the first pressure transducer, the second pressure transducer and the rotational speed sensor.

Abstract: A method is described for determining a measure of geo-mechanical strength of subterranean rock at the cutting surface of a drill bit during drilling using a single measurement related to mechanical power at the drill bit. This measurement in combination with a measure of volumetric rate of rock failure defines an expression for mechanical specific energy (SMSE). SMSE is the mechanical power at the drill bit divided by volumetric rate of rock failure over any time interval. A method is described for predicting geo-mechanical and physical properties (lithology) of subterranean rock at the cutting surface of a drill bit during drilling operations using machine learning (data analytical) model(s). Said models are driven by a set of subterranean measurements related to the structural, physical response of subterranean rock mechanical failure in combination with the measure of SMSE.

Abstract: An apparatus for connecting a stabilizer bar to a vehicle includes a support for attaching to the vehicle. The support defines a space for receiving a bushing through which the stabilizer bar can extend. The support includes tabs to which a heat shield can be attached. The heat shield is spaced apart from the bushing to define a gap between the heat shield and the bushing to protect the bushing from heat emitted from the vehicle exhaust system or engine.

Abstract: An apparatus includes a sensor assembly disposable in a drill string proximate a drilling motor. The sensor assembly has a first pressure sensor in fluid communication with an upstream side of a rotor in the drilling motor, a second pressure transducer in fluid communication with a downstream side of the rotor and a rotational speed sensor coupled to the rotor. A processor is in signal communication with the first pressure transducer, the second pressure transducer and the rotational speed sensor.

Abstract: An apparatus for connecting a stabilizer bar to a vehicle includes a support for attaching to the vehicle. The support defines a space for receiving a bushing through which the stabilizer bar can extend. The support includes tabs to which a heat shield can be attached. The heat shield is spaced apart from the bushing to define a gap between the heat shield and the bushing to protect the bushing from heat emitted from the vehicle exhaust system or engine.

Abstract: Composite plug drill out. At least some example embodiments are methods including: drilling out a first composite plug which creates plug parts and opens a first segment having a first set of perforations through the casing; pumping diverter agent into the first segment to fluidly isolate a formation surrounding the wellbore; forcing plug parts and sand from the first segment to the surface; drilling out a second composite plug which creates plug parts and opens the second segment having a second set of perforations through the casing; pumping diverter agent into the second segment to fluidly isolate the second set of perforations against flow into the formation; and forcing plug parts and sand from the second segment to the surface.

Abstract: An open-irrigated catheter system includes a catheter body and a tip assembly, coupled to a distal end of the catheter body. The tip assembly includes an exterior wall that is conductive for delivering radio frequency (RF) energy for an RF ablation procedure, and that defines an interior region. The exterior wall includes a number of proximal irrigation ports and a number of distal irrigation ports. At least one fluid chamber is defined within the interior region and is in fluid communication with at least one of the proximal irrigation ports and the distal irrigation ports. At least one fluid lumen extends from a fluid source, through the catheter body, to the tip assembly, and is in fluid communication with the at least one fluid chamber.

Abstract: A deployable boom structure is provided that, in one embodiment, includes one or more perforated tapes, a drive mechanism with a sprocket mechanism for engaging each of the perforated tapes to transition the tapes between an undeployed state and a deployed state, and three battens that each extend between the tapes. At least one of the battens is a sliding batten, i.e., a batten that engages each of the tapes but through which each of the tapes can slide. Lanyards and detents cooperate to fix the location of a sliding batten relative to the tapes after a predetermined length of each of the tapes has slid through the batten. In a particular embodiment, the deployable boom structure is coupled with a solar blanket that can be Z-folded.

Abstract: A device for measuring electron orbital angular momentum states in an electron microscope includes the following components aligned sequentially in the following order along an electron beam axis: a phase unwrapper (U) that is a first electrostatic refractive optical element comprising an electrode and a conductive plate, where the electrode is aligned perpendicular to the conductive plate; a first electron lens system (L1); a phase corrector (C) that is a second electrostatic refractive optical element comprising an array of electrodes with alternating electrostatic bias; and a second electron lens system (L2). The phase unwrapper may be a needle electrode or knife edge electrode.

Abstract: A device for measuring electron orbital angular momentum states in an electron microscope includes the following components aligned sequentially in the following order along an electron beam axis: a phase unwrapper (U) that is a first electrostatic refractive optical element comprising an electrode and a conductive plate, where the electrode is aligned perpendicular to the conductive plate; a first electron lens system (L1); a phase corrector (C) that is a second electrostatic refractive optical element comprising an array of electrodes with alternating electrostatic bias; and a second electron lens system (L2). The phase unwrapper may be a needle electrode or knife edge electrode.

Abstract: Embodiments of the invention provide high affinity recombinant EpCAM-binding antibodies. Methods of using a such antibodies as imaging agents, diagnostics and therapeutics are also provided. Dual-nuclear and fluorescently labeled or singly fluorescently labeled contrast agents promise the advantage of molecularly-guided surgical resection via surgical field near-infrared fluorescence (NIRF) imaging following (in the case of dual labeled agents) nuclear imaging for general localization. Currently, nodal staging of most cancers is performed following lymph node (LN) biopsy and dissection for subsequent pathological examination.

Abstract: Devices, systems, and methods for performing ablation therapy on body tissue are disclosed. An example ablation device for treating body tissue includes an ionically conductive balloon and a radio-frequency electrode that delivers RF energy into a distal section of the balloon. The balloon can have a composite structure with a non-conductive section and a conductive section. A method for fabricating a semi-permeable ablation balloon using ionizing radiation and an etching process is also disclosed.

Abstract: An open-irrigated catheter system includes a catheter body and a tip assembly, coupled to a distal end of the catheter body. The tip assembly includes an exterior wall that is conductive for delivering radio frequency (RF) energy for an RF ablation procedure, and that defines an interior region. The exterior wall includes a number of proximal irrigation ports and a number of distal irrigation ports. At least one fluid chamber is defined within the interior region and is in fluid communication with at least one of the proximal irrigation ports and the distal irrigation ports. At least one fluid lumen extends from a fluid source, through the catheter body, to the tip assembly, and is in fluid communication with the at least one fluid chamber.