An acoustic drum kit including a bass drum, a snare drum and a hi-hat stand, the base drum including two parts that are movable with respect to one another between a spaced-apart position, in which the snare drum is fixed removably to the bass drum and to the hi-hat stand such that the drum kit is in a playing configuration, and a compact position, in which the snare drum and the hi-hat stand are housed inside the bass drum, between the two parts thereof, such that the drum kit is in a storage and transport configuration.

This apparatus and system provides an acoustic hollow body guitar which allows for the careful adjustment of the instrument neck to body relative angle of inclination and thus the string to fret distance (action height). This adjustment has the capability of being accomplished while the guitar is in the tuned state and in the playing position. The traditional wood jointing is abandoned and replaced by a guitar neck to body hinge-less mounting bracket assembly apparatus. This system employs a single adjusting nut/dial that is accessed through either/and a port in the side of the upper bout or the sound-hole.

A keyboard with adjustable touch for a musical instrument, each key being a lever divided into front and rear arms, front arm forms on its upper part an operation surface and its lower part interacts with a centering guide, and the rear arm comprises, on its upper part, a counterweight and its lower part interacts with a stop each key comprises a key magnet (KM) mounted on the rear side, facing another magnet (SM) that is mounted on a regulation device which is affixed to the musical instrument chassis, the magnets (KM and SM) are substantially placed face to face, opposed by their equivalent polar faces, the relative position they have to each other is set by the regulation device and generating the effect on the keyboard touch.

A resilient seal for mobile living quarters around a slide out room that includes a pair of attaching members extending along the inside and outside surfaces of the main living area wall at an aperture through which the slide out room moves and further includes a connecting member extending between the attaching members and along the edge of the wall defining the aperture. A wiper seal extends from the connecting member to flex against the walls of the slide out room, and the connecting member further includes an accordion pleat for adjusting the distance between the attaching members to thereby accommodate walls of different thicknesses.

A patient interface assembly having an improved support for use in securing a patient interface device to the head of a patient overcomes the shortcomings of conventional headgear. The improved support provides a self-adjusting anchor point situated anterior to the ear of the patient that provides enhanced stability in mounting the patient interface device to the patient.

The invention relates to a method for automatically adjusting a plurality of tunable passive antennas, for instance a plurality of tunable passive antennas of a radio transceiver using several antennas simultaneously. The invention also relates to an automatically tunable antenna array using this method. An automatically tunable antenna array of the invention has 4 user ports, and comprises: 4 tunable passive antennas, the 4 tunable passive antennas operating simultaneously in a given frequency band and forming a multiport antenna array; 4 sensing units; 4 feeders; a signal processing unit delivering a tuning instruction; and a tuning control unit, the tuning control unit receiving the tuning instruction from the signal processing unit, the tuning control unit delivering tuning control signals to the tunable passive antennas, the tuning control signals being determined as a function of the tuning instruction.

A method and apparatus for angularly aligning an antenna disposed at a geographical location is disclosed. A corresponding apparatus comprises a plurality of reticle members, each reticle member having a reticle, and a plurality of reference members, each adjustably engaged with an associated one of the plurality of reticle members, wherein each of the plurality of reference members comprises an associated template having a reference mark positioned thereon according to the geographical location of the antenna and the antenna is angularly aligned when each reference mark of each template is aligned with the reticle associated with the reference mark. A corresponding method comprises the steps of affixing an associated template having a reference mark positioned thereon according to the geographic location of the antenna to each of the plurality of reference members and angularly aligning each of the plurality of reticle members with each reference mark of each associated template.

Methods and apparatus for treating an exhaust gas in a foreline of a substrate processing system are provided herein. In some embodiments, a method for treating an exhaust gas in an exhaust conduit of a substrate processing system includes: flowing an exhaust gas and a reagent gas into an exhaust conduit of a substrate processing system; injecting a non-reactive gas into the exhaust conduit to maintain a desired pressure in the exhaust conduit for conversion of the exhaust gas; and forming a plasma from the exhaust gas and reagent gas, subsequent to injecting the non-reactive gas, to convert the exhaust gas to abatable byproduct gases.

A method of detecting an electric arc in an electrical system from a signal originating from at least one sensor detecting acoustic waves in the system, including: a) calculating by means of a processing device, over a sliding window of signal samples, at least one statistical parameter selected from the skewness and the kurtosis of the signal; b) detecting a possible occurrence of an event by taking into account said at least one statistical parameter; and c) performing a frequency analysis of the signal enabling to identify an electric arc when an event is detected at step b).

Methods and systems for frequency-dependent fluid attenuation measurement are provided. In certain embodiments, the methods comprise: generating one or more reference acoustic signals within a reference fluid; receiving one or more reference acoustic signal reflections; determining a frequency-dependent response function based, at least in part, on the one or more reference acoustic signal reflections; generating one or more sample acoustic signals within a sample fluid; receiving one or more sample acoustic signal reflections; and determining a frequency-dependent attenuation function of the sample fluid based, at least in part, on the one or more sample acoustic signal reflections and the frequency-dependent response function.

A first-half combustion period, for example, is estimated/evaluated, with a required accuracy, more simply than the conventional art, while reducing man-hours to produce a heat generation rate waveform of an internal combustion engine. Within a combustion period of an air-fuel mixture, a period from an ignition time FA to a heat generation rate maximum time dQpeakA where the heat generation rate is maximum is defined as the first-half combustion period a that is one of characteristic values of the heat generation rate waveform. The first-half combustion period a is estimated based on an in-cylinder volume at the heat generation rate maximum time, and furthermore by being corrected using an exponential function of the engine rotation speed with a value depending on a tumble ratio as exponent. Thus, the heat generation rate waveform is produced using the estimated first-half combustion period a.

A method comprising applying a chemical change reagent to coal prior to combustion of the coal is provided. In some instances, the chemical change reagent can include an effective amount of a material to reduce NOx emissions, SOx emissions, or both from combustion of the coal.

'Don’t build technology for Mordor.' On Saturday at Peter Thiel’s San Francisco home overlooking the Bay, protesters demonstrated against a collaboration between Immigration and Customs Enforcement and Palantir Technologies, a data-mining firm that Thiel co-founded. As reported in The Intercept, ICE will be using a new Palantir product called Investigative Case Management to to aid in its expanded deportation mission.…

Turf dancing has become ubiquitous on the trains, providing steady income, a creative platform, and a built-in audience. On a recent Friday, Yaameen Muhammad stood on the West Oakland BART platform, the afternoon sun reflecting off his neon-yellow high-tops.…

Viruses and other bioagents are of high medical and biodefense concern and their detection at concentrations well below the threshold necessary to cause health hazards continues to be a challenge with respect to sensitivity, specificity, and selectivity. Ideally, assays for accurate and real time detection of viral agents and other bioagents would not necessitate any pre-processing of the analyte, which would make them applicable for example to bodily fluids (blood, sputum) and man-made as well as naturally occurring bodies of water (pools, rivers). We describe herein a robust biosensor that combines the sensitivity of surface acoustic waves (SAW) generated at a frequency of 325 MHz with the specificity provided by antibodies and other ligands for the detection of viral agents. In preferred embodiments, a lithium tantalate based SAW transducer with silicon dioxide waveguide sensor platform featuring three test and one reference delay lines was used to adsorb antibodies directed against Coxsackie virus B4 or the negative-stranded category A bioagent Sin Nombre virus (SNV), a member of the genus Hantavirus, family Bunyaviridae, negative-stranded RNA viruses. Rapid detection (within seconds) of increasing concentrations of viral particles was linear over a range of order of magnitude for both viruses, although the sensor was approximately 50×104-fold more sensitive for the detection of SNV. For both pathogens, the sensor's selectivity for its target was not compromised by the presence of confounding Herpes Simplex virus type 1. The biosensor was able to detect SNV at doses lower than the load of virus typically found in a human patient suffering from hantavirus cardiopulmonary syndrome (HCPS). Further, in a proof-of-principle real world application, the SAW biosensor was capable of selectively detecting SNV agents in complex solutions, such as naturally occurring bodies of water (river, sewage effluent) without analyte pre-processing.

Stories you shouldn’t miss:

1. Alameda County Public Health Director Muntu Davis contends that gentrification should be examined in terms of health impacts because of the displacement and stress it causes for low-income residents, the Bay Area News Group$ reports.…

The city's 911 system can leave callers waiting for more than 120 seconds before an operator ever answers. Seconds of delay in an emergency can lead to death. As a result, 911 calls are supposed to be answered quickly.…

A gas turbine that includes: a combustor coupled to a turbine that define a working fluid flowpath; a compressor discharge cavity; a staged injection system that includes the forward injector and a staged injector; a stator blade positioned extending across the working fluid flowpath between an inboard sidewall and an outboard sidewall. A one-way continuous coolant flowpath that includes: an intake section that comprises an upstream port connected to the compressor discharge cavity and a downstream port formed through one of the inboard and outboard sidewalls; an outtake section that comprises a downstream port connected to the staged injector and an upstream port formed through the same one of the inboard and outboard sidewalls; and a cooling circuit extending through an interior of the airfoil of the stator blade and connecting to the downstream port of the intake section and the upstream port of the outtake section.

A combustor cap module is provided with a retention system to facilitate assembly and disassembly. The combustor cap module further includes a cap face assembly having a cooling plate; a cylindrical sleeve including a connecting surface for attaching the cap face assembly to the retention assembly; and a coupling member mounted in a downstream fuel nozzle opening in the cooling plate. The retention system includes a support plate having an inner panel that defines an upstream fuel nozzle opening. The coupling member extends through the upstream fuel nozzle opening, such that its upstream end extends upstream of the support plate. A retaining ring at least partially encircles the upstream end of the coupling member and is engaged by a spring plate that is removably secured to the support plate at multiple locations. A method for assembling a combustor cap module is also provided.

A gas separation process for treating exhaust gases from combustion processes. The invention involves routing a first portion of the exhaust stream to a carbon dioxide capture step, while simultaneously flowing a second portion of the exhaust gas stream across the feed side of a membrane, flowing a sweep gas stream, usually air, across the permeate side, then passing the permeate/sweep gas back to the combustor.

In a method of reducing pollutants of a combustion engine, exhaust gas, generated by a cylinder of the combustion engine, is fed to an exhaust gas aftertreatment system as a function of a predefined condition solely via a first exhaust channel which communicates with a first one of first and second exhaust valves of the cylinder. The first exhaust channel is hereby coated, at least in part, by a thermally insulating layer selected such that a heat input is transmitted to the exhaust gas aftertreatment system which heat input is greater than a heat input in a second exhaust channel communicating with a second one of the first and second exhaust valves. The predefined condition is defined as a function of a coolant temperature of the combustion engine.

An exhaust treatment system comprising a first oxidation catalyst to oxidise nitrogen and/or carbon compounds in an exhaust stream and a first dosage device downstream of said first oxidation catalyst to supply a first additive. A first reduction catalyst device is arranged downstream of said first dosage device for reduction of nitrogen oxides using said first additive, and for the generation of heat, through at least one exothermal reaction with said exhaust stream. A particulate filter arranged downstream of said first reduction catalyst device to catch soot particles and a second dosage device, arranged downstream of said particulate filter to supply a second additive. A second reduction catalyst device is arranged downstream of said second dosage device for reduction of nitrogen oxides in said exhaust stream, through the use of at least one of said first and said second additive.

An exhaust apparatus for a diesel engine rapidly burns an unburned deposit in an upstream exhaust catalyst with heat of a heater. The exhaust apparatus includes a downstream exhaust cleaner, an upstream exhaust catalyst provided in an exhaust passage, upstream of the downstream exhaust cleaner, a heater disposed at an exhaust inlet of the upstream exhaust catalyst, and an engine starter apparatus. A control unit controls the power supply to the heater and an engine start process is performed by the engine starter apparatus. A start command unit is connected to the control unit. When the engine has been stopped and then the start command unit gives the control unit a start command, the control unit powers the heater without performing an engine start process, thereby keeping the engine stopped for a predetermined period of time after the start command has been given, and subsequently performing the engine start process.

A catalytic converter for an internal combustion engine includes a tubular member which defines a volume within which a catalytic converter substrate is located, the volume communicates with an inlet portion for receiving exhaust gas emissions and with a first outlet portion for discharging emissions after catalytic conversion. The catalytic converter may also include a pipe member within the tubular member, which connects the inlet portion with the volume and guides emissions from the inlet portion in a first direction. The pipe member opens into a deflector member which deflects emissions into the volume in a second direction, and the catalytic converter includes a second outlet portion connected to the deflector member and a valve to control gas flow through the second outlet portion to guide emissions away from the pipe member and out of the catalytic converter prior to reaching the catalytic converter substrate when the valve is open.

The vehicle exhaust device has an exhaust passage from an exhaust port of an engine body to an exhaust muffler provided behind the engine body, and the exhaust passage is formed by a plurality of exhaust passage forming units. The exhaust device includes an exhaust gas sensor attached to one of the exhaust passage forming units, such as a collecting pipe, halfway on the exhaust passage. At least a portion of the exhaust gas sensor is covered from a front side thereof with one of the exhaust passage forming units, such as an individual exhaust pipe, upstream of an attached position of the exhaust gas sensor.

The heat shield assembly includes an inner-most layer that is directly engagable with an exhaust component and is of a non-ceramic material with a first heat capacity and a first thermal conductivity. The heat shield assembly additionally includes an insulating layer that surrounds the inner-most layer and is of a material that has a second heat capacity which is lower than the first heat capacity and has a second thermal conductivity which is lower than the first thermal conductivity. The direct engagement of the inner-most layer with the exhaust component allows heat to be easily transferred between the exhaust component and the inner-most layer.

A controller is provided, which detects operating conditions of an internal combustion engine on the basis of detection results from a group of sensors and drives an actuator that modifies an opening position of a wastegate valve on the basis of the operating conditions. When driving the wastegate valve to a fully closed opening, the controller initially drives the actuator toward a preset provisional fully closed position, and after determining on the basis of a detection result from a position sensor that an actual opening of the wastegate valve has reached the provisional fully closed opening, switches a target opening to the fully closed opening and drives the actuator accordingly.

A required opening correction amount is calculated based on a target supercharging pressure and an actual supercharging pressure, a target opening is calculated based on a required opening and the required opening correction amount, an actual operating position of a wastegate valve is determined to correspond to a fully closed position when the wastegate valve is in a fully closed condition, an actual opening of the wastegate valve is calculated based on the fully closed position and the actual operating position, an operation amount of an actuator for aligning the target opening with the actual opening is calculated based on the target opening and the actual opening, and when the target opening corresponds to the fully closed condition and the actual operating position is not decreased at or above a prescribed rate, the fully closed position is updated to the actual operating position.

A system includes a gas turbine system having a turbine combustor, a turbine driven by combustion products from the turbine combustor, and an exhaust gas compressor driven by the turbine. The exhaust gas compressor is configured to compress and supply an exhaust gas to the turbine combustor. The gas turbine system also has an exhaust gas recirculation (EGR) system. The EGR system is configured to recirculate the exhaust gas along an exhaust recirculation path from the turbine to the exhaust gas compressor. The system further includes a main oxidant compression system having one or more oxidant compressors. The one or more oxidant compressors are separate from the exhaust gas compressor, and the one or more oxidant compressors are configured to supply all compressed oxidant utilized by the turbine combustor in generating the combustion products.

Various embodiments of the invention can include a portable power system with multiple power generation modes and mode based adjustable drag configuration. Embodiments of the invention include a system with an adjustable inlet ram air inlet, a ram air powered section (e.g. a ram air powered turbine with an adjustable ram air inlet), a fuel powered section, e.g., jet fuel powered auxiliary power unit, which is used when insufficient ram air is present or a power surge requires augmented power generation, and a generator section selectively coupled with the ram air powered section and the fuel powered section.

A method for operating a stationary gas turbine at partial load, having at least one compressor, at least one expansion turbine and a combustion chamber provided with at least one burner, which gas turbine further includes a hydraulic gap adjuster, wherein the method has the following steps: operating the gas turbine at partial load; operating the a hydraulic gap adjuster; during the operation of the hydraulic gap adjuster, increasing the fuel supply to the burner while increasing the temperature of the combustion gases which are guided to the expansion turbine.

The invention is in the field of engine building technology and may be used in space technology or aviation. Liquid-propellant rockets with Laval nozzles are well known, and they have the following insufficiencies: (1) high fuel consumption rates, which lead to increased dimensions and engine weight and boosters; (2) a relatively low combustion efficiency, because the low mass of the combustion products are emitted into the environment; (3) the large length of the de Laval nozzles with increased expansion ratios increase the dimensions and the engine weight; (4) use of high temperature rocket propellants—combustion products—in the camera and de Laval nozzle. These insufficiencies suppress using liquid-propellant rockets in space technology. The goal of the invention is decreasing the influence of these insufficiencies and obtaining an engine with improved efficiency. The goal is achieved with the creation of an engine with the subsonic discharge of combustion products and the creation of a simple nozzle construction.

A combustor of a gas turbine engine including a combustor shell having an interior surface defining a combustion chamber, a first panel mounted to the interior surface at a first position, the first panel having a first surface and a first rail extending from the first surface toward the combustor shell, the first rail configured at a first angle relative to the first surface, and a second panel mounted to the interior surface at a second position axially adjacent to the first panel, the second panel having a second surface and a second rail extending from the second surface toward the combustor shell, the second rail configured at a second angle relative to the second surface. The first and second rails are proximal to each other and define a circumferential gap there between and at least one of the first or second angles is an acute angle.

A system for injecting a liquid fuel into a combustion gas flow field includes an annular liner that defines a combustion gas flow path. The annular liner includes an inner wall, an outer wall and a fuel injector opening that extends through the inner wall and the outer wall. The system further includes a gas fuel injector that is coaxially aligned with the fuel injector opening. The gas fuel injector includes an upstream end and a downstream end. The downstream end terminates substantially adjacent to the inner wall. A dilution air passage is at least partially defined by the gas fuel injector. A liquid fuel injector extends partially through the dilution air passage. The liquid fuel injector includes an injection end that terminates upstream from the inner wall.

The present invention provides a temperature adjusting apparatus for a focus ring, wherein heat radiated from the plasma onto the focus ring is transferred downward to a base through the first heat conducting pad contacting a lower surface of the focus ring, an insulating ring contacting a lower surface of the first heat conducting pad, and the second heat conducting pad contacting a lower surface of the insulating ring, so as to be cooled by a cooling system provided at the base; turning on a heater disposed in a grounded shielding ring to generate a controllable external heating source, heat from the heater being transferred to the focus ring through the shielding ring, a third heat conducting pad contacting the shielding ring, the insulating ring contacting the third heat conducting pad, and the first heat conducting pad, so as to perform controllable warming to the focus ring. By providing a good heat conduction path in conjunction with controllable heating power, the present invention achieves a fine control of the working temperature of the focus ring such that it is tunable in processing such as etching, thereby satisfying processing demands.

A charge air cooler for an internal combustion engine, includes a charge air inlet and a charge air outlet which are fluidly connected with each other via multiple charge air channels which are arranged parallel to each other and arranged parallel to each other and subjectable to a coolant flow; and at least one flow guide element arranged upstream of the charge air channels, wherein the flow guide element at least in one operating state of the internal combustion engine deflects charge air entering through the charge air inlet the direction of a condensate accumulation volume of the charge air cooler.

IT had seemed a simple plan: to drive from Basingstoke to Ringwood, leaving the function I was attending around 10pm.

A batting pad comprising a body made from a cushioning material and having a ring portion adapted to fit over a batter's thumb and an appendage to cushion the palm area between a batter's thumb and index finger. The appendage has a thickness T at its thickest point located between the first end and the distant end, and the thickness T of the appendage is selected to optimize an angle of a bat in the batter's hand relative to a line parallel to the batter's forearm, the angle being determined by the thickness T of the appendage displacing the bat toward the tip of the batter's index finger and causing the bat to contact the palm of the batter's hand near the batter's little finger.

FORMER Hampshire star Glenn Maxwell blasted 88 off only 39 balls as Australia romped to the highest team total in cricket World Cup history.

Former Hampshire star Glenn Maxwell hit the second-fastest century in Cricket World Cup history as Australia beat Sri Lanka by 64 runs to book a quarter-final place.

Former Hampshire all-rounder Glenn Maxwell's World Cup heroics were not enough to earn him a place in Australia's Test squad for the Ashes series against England or a preceding tour of the West Indies.

Former Australia captain Steve Waugh has urged England to move on from Kevin Pietersen, believing the controversial batsman no longer merits a place in the side and brings too much baggage as well.

EASTLEIGH manager Ben Strevens admitted wishing his side’s match against second-from-bottom Chorley was postponed after all.

HAMPSHIRE have signed Australian off-spinner Nathan Lyon as their overseas player in next year’s Specsavers County Championship.

A NEW digital publication will allow Hampshire Cultural Trust to keep its doors open online.

WICKHAM Festival organisers are still hoping to go ahead with the 2020 event amid a host of other coronavirus cancellations to Hampshire events this summer.

THE future of a much-loved Southampton band considered one of the rising stars of British indie pop is in doubt after music equipment worth thousands was stolen.

A CULTURAL trust is inviting Hampshire residents to mark the 75th anniversary of VE Day.

A Southampton sailing charity has launched an emergency campaign to raise £1m by this Friday or face a bleak future.

A SOUTHAMPTON sailing charity which is fighting for its survival is one step closer to raising enough money to keep it afloat.