Windy conditions on Saturday and Sunday led to moderate growth on the Saffron Fire which is being managed for multiple objectives on the North Rim of Grand Canyon National Park. https://www.nps.gov/grca/learn/news/5jul10_windy_weekend_news.htm

As the Obi Fire winds down, temporary road and trail closures will expire on Saturday evening, August 18th, 2018. Some road and trail closures will remain in place due to fires on the neighboring Kaibab National Forest. https://www.nps.gov/grca/learn/news/final-press-release-for-obi-fire.htm

Over the past two days, firefighters made progress with firing operations along Forest Road 223. This tactic is conducted to strengthen and improve the northern boundary of the planning area. The North Rim Village and businesses are open. However, road and trail closures remain in effect for the Ikes Fire planning area for Grand Canyon National Park and the Kaibab National Forest. https://www.nps.gov/grca/learn/news/ikes-fire-holding-after-tested-by-winds-20190823.htm

A Windows 8 'Metro' style menu suitable for all modern browsers including touch screens.

A responsive swipe action full screen gallery with swipe action for Windows 8 and IE10/11. NO javascript.

A simple CSS ONLY modal windows template, suitable for all the latest browsers.

Crews and officers from Surrey Fire and Rescue Service and Surrey Police were in attendance

Nationally, there is growing public interest in and policy pressure for developing alternative and renewable sources of energy. Wind energy facilities in the Pacific Northwest expanded rapidly over the past decade, as a result of state policies that encourage wind energy development. While much of the development thus far has occurred on private lands, there is interest in expanding onto federal land. However, there are concerns about the impacts of wind energy on wildlife. Wind energy facilities have the potential to harm wildlife both directly through collisions with turbines and transmission lines, and indirectly by modifying habitat. This report synthesizes the available scientific literature on potential wind energy facility impacts to wildlife, with a focus on the Pacific Northwest (Oregon and Washington), and summarizes the current best management practices recommended in federal and state guidelines for wind energy development. Research gaps in our understanding of wind energy impacts on wildlife remain. Future research needs include long-term, multisite, experimental studies of wind energy impacts on wildlife, improved ability to estimate population-level and cumulative impacts of wind energy facilities on wildlife, and better knowledge of key wildlife species' migration and demography.

There are many apps are available on Microsoft store for free which can be installed very easily but who knows? That is why we are sharing 8 Wallpaper Photos Apps On Microsoft Store You (Might) Never Knew For Windows. So, without any further ado let’s take a...

The post 8 Free Wallpaper Photos Apps On Microsoft Store You (Might) Never Knew For Windows appeared first on SmashingApps.com.

For years the only bit of feedback web developers could get was via alert("{str}") calls. These days we have the web console but, in rare cases, we don’t have a console and alert calls are our only window into a value at a given time. One problem: if an alert sneaks into production code, your […]

The post Override window.alert appeared first on David Walsh Blog.

Video games are always a fun time, something we desperately need during our COVID lockdown. A few years back I shared how to play retro games on Mac, as well as how to patch games to play popular ROM hacks like Grand Poo World and Invictus. One disadvantage that Macs have, however, is performance — […]

The post How to Play Retro Game ROMs on Windows appeared first on David Walsh Blog.

HP continues to divulge bits and pieces of a road map for the ill-starred and nearly-orphaned webOS. The company has followed up its December plan to release webOS mobile platform and development tools with a proposed timeline, with a full release set before year’s end.  Some people see a life for the associated Enyo JavaScript Read the rest...

WinJS is a JavaScript framework for Windows 8, and David Rousset uses it here to create a quick RSS reader. He shows how in a tutorial series. This first article shows the way to build a welcome screen that employs WinJS ListView control. Blend and CSS3 are employed. The second tutorial shows work on the Read the rest...

Family trip to London and Windsor.

By Energy.Gov Annual reports analyzing the wind energy industry released today by the Energy Department show continued rapid growth in wind power installations in 2015, demonstrating market resilience and underscoring the vitality of the U.S. wind energy market on a … Continue reading →

A modeling framework for evaluating the impact of weather conditions on farming and harvest operations applies real-time, field-level weather data and forecasts of meteorological and climatological conditions together with user-provided and/or observed feedback of a present state of a harvest-related condition to agronomic models and to generate a plurality of harvest advisory outputs for precision agriculture. A harvest advisory model simulates and predicts the impacts of this weather information and user-provided and/or observed feedback in one or more physical, empirical, or artificial intelligence models of precision agriculture to analyze crops, plants, soils, and resulting agricultural commodities, and provides harvest advisory outputs to a diagnostic support tool for users to enhance farming and harvest decision-making, whether by providing pre-, post-, or in situ-harvest operations and crop analyzes.

A wind direction indicating and time display unit is provided for use at the tee areas of a golf course. The unit wind direction indicating device is mounted on an upper surface of a support structure and extends upwardly therefrom. The wind direction indicating device includes a support pole, a sleeve mounted for rotation on the pole at the top thereof, a wind direction indicating element, such as a flag, secured to the sleeve and movable in response to changes in wind direction, and a pole support fitting. Secured to the upper surface of the support structure. A time display device, such as a clock, is secured in a laterally facing wall surface of the support structure.

A sequence of storage devices of a data store may include one or more stripesets for storing data stripes of different lengths and of different types. Each data stripe may be stored in a prefix or other portion of a stripeset. Each data stripe may be identified by an array of addresses that identify each page of the data stripe on each included storage device. When a first storage device of a stripeset becomes full, the stripeset may be shifted by removing the full storage device from the stripeset, and adding a next storage device of the data store to the stripeset. A class variable may be associated with storage devices of a stripeset to identify the type of data that the stripeset can store. The class variable may be increased (or otherwise modified) when a computer stores data of a different class in the stripeset.

A component for a laser tool, the component comprising: a tubular body defining an internal channel and an aperture; and a window disposed across the aperture and bonded to the tubular body around the aperture, wherein the window is diamond, and wherein the tubular body comprises a material having a coefficient of linear thermal expansion α of 14×10−6 K−1 or less at 20° C. and a thermal conductivity of 60 Wm−1K−1 or more at 20° C.

The invention concerns an action (1, 2) for a wind instrument, comprising keys (6) pivoted turnably relative to the body (3) of the instrument, holes (5) in the body being openable and closable with said keys according to the player's operation for producing notes of different pitch. A key action of this kind is found e.g. on the flute and on other woodwinds. As taught by the invention, the action comprises keys (6) which have been provided with magnets (12) so that the magnet returns the key that has turned into its initial position when the player ceases to press the key or the touch acting thereon. The keys (6) may be open keys which stay open by effect of mutually repulsing magnets (12) and close when pressed by the player against the repulsion of the magnets, or closed keys which are kept closed by mutually attracting magnets and open when pressed against the attraction of the magnets by the player, by touches connected with the keys.

A rotary valve assembly incorporated in a brass instrument for changing a pitch of a tone comprises a rotary valve housed in a valve casing having two groups of aeroports, and the rotary valve is provided with two air passages, one of which interconnects the aeroports in the first group and the other of which interconnects one aeroport of the first group and one aeroport of the second group, so that various arrangements are possible for the aeroports.

A rotary valve for brass wind instruments with improved lubricating and durability properties is provided. The valve body 2 or both the valve body 2 and casing 1 of the rotary valve comprise(s) a machinable ceramic-resin composite material. The rotary valve can be readily produced by a method which comprises impregnating a machinable ceramic article containing substantially continuous micropores with a liquid resin material and hardening the resin material; machine-processing the resulting machinable ceramic-resin composite article into a shape of the valve body or shapes of the valve body and casing; and assembling the valve body into a rotary valve having the valve body 2 of the composite material rotatably contained in the casing 1 of the composite material or a metal material.

Support devices for a woodwind musical instrument, and methods for making such support devices. A support device includes a strap for hanging from the neck of the user. Attached to the strap is a brace shaped to receive the instrument. This way the instrument is suspended from the neck of the user. Preferably the brace is such that the strap is attached so that no portion of the strap contacts the instrument, when it is so supported.

Wind instrument includes a tubular body having a plurality of tone holes, and a plurality of keys capable of opening and closing the tone holes. Via a retaining member, detector units are provided within the tubular body in corresponding relation to the keys, and each of the detector units is generally opposed to the back surface of the corresponding key. Each of the detector units detects a relative distance to the back surface and outputs an electrical signal, on the basis of which an opening/closing state of the key can be detected. The retaining member, accommodated in the tubular body, positions and retains each of the detector units in such a manner that the keys and tubular body and the individual detector units are kept in non-contacting relation to each other.

A system, method, and apparatus for providing three level inverter modulation is disclosed. In one embodiment, control signals can be provided to control a three level inverter in a power converter based on at least one feedback signal.

Frames are disclosed for mounting windows within the walls of enclosures for isolating or sealing substances such as radioactive or other hazardous substances from the surrounding environment. In a first embodiment of the present invention, a window assembly includes a two-piece frame that is welded into the wall of an enclosure. In a second embodiment of the present invention, a window assembly includes a three-piece frame that is clamped to the wall of an enclosure. The frame assemblies may also be used to mount structures other than windows to enclosure walls, such as ducts or pipes intended for passing power, gas, vacuum, or other utilities into the interior of an enclosure.

Frames for mounting windows within the walls of enclosures for isolating or sealing substances such as radioactive or other hazardous substances from the surrounding environment. In a first embodiment of the present invention, a window assembly includes a two-piece frame that is welded into the wall of an enclosure. In a second embodiment of the present invention, a window assembly includes a three-piece frame that is clamped to the wall of an enclosure. The frame assemblies may also be used to mount structures other than windows to enclosure walls, such as ducts or pipes intended for passing power, gas, vacuum, or other utilities into the interior of an enclosure.

A windrow door assembly for controlling a direction of flow of crop residue expelled from a combine is disclosed. The window door assembly may generally include a door panel extending between a first end and a second end. The door panel may be moveable between a closed position, wherein the crop residue being expelled from the combine is directed along the door panel into a spreader of the combine, and an opened position, wherein the crop residue is directed along the door panel towards a rear opening of the combine. In addition, the windrow door assembly may include a deflector panel rotatably coupled to the door panel. The deflector panel may be configured to alter the direction of flow of the crop residue when the door panel is in the opened position.

Communication facilitated between frames of a browser window. Whenever a particular frame receives a message destined for a target frame from a source frame, the particular frame determines if the particular is indeed the target frame. If so, the particular frame processes the message, but if not, the particular frame determines whether the target frame has registered with the particular frame. If the target frame has registered with the particular frame, the particular frame uses a handle communicated as part of the registration to dispatch the message further towards the target frame. In some cases, this handle may be directly that of the target frame itself, in which case the particular frame communicates the message directly with the target frame. This manner of inter-frame communication may be facilitated by a unique registration process when frames come into existence.

A power distribution system for distributing electric power generated by a wind farm between an AC power transmission link and a DC power transmission link is provided. Both power transmission links connect the wind farm to a substation of a power grid. The power distribution system includes a central wind farm controller and a distribution device. In response to a control signal from the central wind farm controller, the distribution device distributes the generated electrical power between the two power transmission links. It is further described a power transmission system with the above described power distribution system and a method for distributing electric power between an AC power transmission link and a DC power transmission link.

A windshield wiper arm bracket includes a pair of side walls. Each of said side walls include at least one centrally located pin arm receiving hole formed therein. The bracket also includes a post attaching the pair of side walls together. The post is for receiving a pin arm adaptor thereon. The bracket also includes an attachment arm formed on a bottom of each of the pair of side walls. The attachment arms are for connecting the bracket to a windshield wiper assembly. An adaptor for a windshield wiper arm bracket includes a top portion and a web portion. The web portion includes a central aperture formed therein. The central aperture includes a first portion for receiving a post of the windshield wiper arm bracket and a second aperture for receiving a pin arm of a windshield wiper arm.

There is provided a transport vehicle for transporting wind power installation rotor blades and/or pylon segments. The transport vehicle has a transport support structure having a main frame, a receiving frame fixedly connected to the main frame at a first angle, and a rotary displacement unit which is fixed with one end to the receiving frame and which at its second end has a blade adaptor for receiving a rotor blade or a pylon segment. The main frame spans a main plane. The rotary displacement unit has at least one first rotary mounting, wherein there is provided a second angle between the second rotary plane of the second rotary mounting.

A transportation and storage system for a wind turbine rotor blade comprises a tip end frame assembly comprising a tip end receptacle and a tip end frame. The tip end receptacle comprises an upwardly open tip end-receiving space for receiving a portion of the tip end of the blade and having a supporting surface for supporting the blade, a lower surface allowing the tip end receptacle to rest upright on a substantially horizontal surface, such as the ground, and releasable retaining means for releasably retaining the tip end of the blade in the receiving space of the tip end receptacle. The tip end frame comprises an upwardly open receptacle-receiving space for receiving the receptacle and provided with positioning means for positioning the receptacle in the tip end frame. A base part defines a bottom surface allowing the tip end frame to rest upright on the ground.

A transport system for a wind turbine blade is provided. The transport system is configured for increasing a curvature of the wind turbine blade in response to an obstacle during transport of the wind turbine blade. Further, a method for transporting a wind turbine blade in order to avoid obstacles is provided.

A method of replacing a generator of a wind power installation. The generator is provided in the interior of a pylon of a wind power installation and the pylon has a door opening. An exchanging cross beam is fixed by way of a first fastening point to a crane hook of a mobile crane. A first end of the cross beam is introduced with a second fastening point through the door opening into the pylon. The transformer to be replaced is fixed to the second fastening point of the first end. A compensating weight is fixed at the second fastening point to the second end of the cross beam. The second end of the cross beam is tilted or inclined until the transformer is at the height of the door opening and the crane hook is moved until the transformer to be replaced is outside the door opening.

An optical device includes a housing containing a plurality of lenses. At least one of those lenses includes a reticle. An optical device and a processor are also located in the housing. A wind speed sensor is mounted to the housing and configured to send a wind speed signal corresponding to a wind speed to the processor. The processor calculates a wind speed based at least in part on the wind speed signal, and wherein the processor sends an output signal corresponding to the calculated wind speed to the output device.

A window or door fitting for actuation of a mechanism integrated in a window or a door has a stop body that can be attached to the window or the door, a handle, that is rotatably mounted on the stop body in an axially fixed manner, a polygonal element for the mechanical coupling of the fitting to the mechanism integrated in the window of the door, and a coupling configuration formed between the handle and the polygonal element, with which a torque transference from the handle to the polygonal element can be effected, but can be blocked in the direction from the polygonal element to the handle. The coupling configuration has two driving elements for this, wherein a first diving element is connected to the handle in a rotationally locked manner, while a second driving element accommodates the polygon in a rotationally fixed manner.

The present invention relates to a control system for a wind turbine, comprising an electrical device that is arranged for being used during normal operation of a wind turbine and a power source that is arranged to be used as an emergency power supply to a blade pitch motor, wherein the blade pitch motor is arranged to test at least one property of said power source. The invention also relates to a method for testing a power source.

A nacelle main frame structure and drive train assembly (1) for being mounted on a tower (2) of a wind turbine. The nacelle main frame structure and drive train assembly (1) comprises a nacelle main frame structure (4) with a central part (6) connecting a first part (7) to a second part (8). The first part (7), during wind turbine operation and/or servicing activities, takes up loads of a rotor (9). A drive train (5) is at least partially located between the first and second parts (7, 8). The central part (6) of the main frame structure (4) is located substantially above at least part of the drive train (5) and is such that at least part of the drive train (5) can only be removed from the main frame structure (4) by lowering at least part of the drive train (5) from the main frame structure (4).

An elongate web is attached to the root end of a spar of a wind turbine rotor blade to provide additional support along the width of the blade. The root end is formed by a winding operation, and a recess is then cut into the surface of the spar. The recess is defined by a relatively large first, cylindrical surface, which is coaxial with the longitudinal axis of the root end, and a relatively small second, conical surface. A tapered end of the elongate web is attached within the recess of the root end using a layer of suitable adhesive and an array of pins. Resilient spacer elements are arranged within the recess so as to surround the pins. The large area of the cylindrical surface causes the tensile and compressive stresses which arise along the elongate web in use to be transmitted to the spar as shear stresses.

The invention provides a method and system of monitoring bending strain on a wind turbine blade. The method in one aspect comprises: locating at least three strain sensors on the turbine blade, in use each strain sensor providing a strain measurement, the strain sensors located such that edgewise and flapwise bending can be determined from the strain measurements; calculating a plurality of resultant bending strains using the strain measurements; calculating an average resultant bending strain from the plurality of resultant bending strains; and calculating a confidence value for a first sensor based on a comparison of resultant bending strains derived from the strain measurement from the first sensor with the average resultant bending strain.

A blade for a rotor of a wind turbine is manufactured with a root region with a substantially circular or elliptical profile closest to the hub, an airfoil region with a lift generating profile furthest away from the hub and a transition region having a profile gradually changing the root region to the airfoil region. A first blade design is used for the first base part on a first longitudinal section of an airfoil region of a second blade, so that an induction factor of the first base part on the second blade deviates from a target induction factor. The first longitudinal section of the second blade is provided with flow altering devices so as to adjust the aerodynamic properties of the first longitudinal segment to substantially meet the target induction factor at the design point on the second blade.

A method is provided for operating a wind turbine having an elongated stand apparatus, a generator rotatably mounted on the stand apparatus, and a rotor coupled to the generator via a rotor hub and the wind turbine also having an elongated rotor blade. A position of a radar system is determined with respect to the wind turbine and at least one area is determined for the rotational axis of the rotor as a function of the determined position which is not intended to be permanently assumed for alignment of the rotational axis of the rotor about the longitudinal axis of the stand apparatus. The wind turbine is operated with the at least one determined area not being permanently assumed for the alignment of the rotational axis of the rotor about the longitudinal axis of the stand apparatus.

A rotor blade assembly is disclosed. The rotor blade assembly includes a rotor blade having exterior surfaces defining a pressure side, a suction side, a leading edge, and a trailing edge extending between a tip and a root. The rotor blade further defines a span and a chord. The rotor blade includes a skin layer that includes the exterior surfaces. The rotor blade assembly further includes a passive spoiler assembly operable to alter a flow past an exterior surface of the rotor blade. The spoiler assembly includes a spoiler feature movable between a non-deployed position and a deployed position. Movement of the spoiler feature from the non-deployed position to the deployed position is caused by a change in an applied force to the spoiler feature by the skin layer.

A control apparatus C of a horizontal axis wind turbine apparatus WTG calculates the value en of a pitch angle command for each blade based on the rate of change ΨD of the azimuth angle Ψ of a Nacelle N and the rotor azimuth angle of the blades B1, B2 and B3, causes the rotor R to generated torque around the yaw axis by periodically controlling the angle change of the pitch angle of the blades B1, B2 and B3, and using that torque, controls the rate of change of the azimuth angle of the nacelle N. The value of that angle change is calculated as a value that increases as the inputted value of the rate of the change ΨD increases.

A wind turbine rotor includes a hub with a rotor blade mounted to a bearing of the hub wherein the rotor blade has a longitudinal axis extending in a radial direction relative to an axis of rotation of the hub, and the rotor blade is rotatable about its longitudinal axis whereby the pitch of the rotor blade is adjustable. The rotor blade has a tag such as an RFID tag fixed on the rotor blade at a predetermined angular position about the longitudinal axis of the rotor blade; and a sensor is fixed on the hub for contactless sensing of the tag when the tag is in a predetermined angular position about the longitudinal axis of the rotor blade. Repeated and accurate calibration of rotor blade pitch is hereby made possible.

Wind turbine rotor blades include a shell having a leading edge opposite a trailing edge, a structural support member that supports the shell and is disposed internal the wind turbine rotor blade between the leading edge and the trailing edge and extends for at least a portion of a rotor blade span length, and a resistive cellular support structure disposed at least partially about the wind turbine rotor blade that physically supports at least a portion of the wind turbine rotor blade and at least partially absorbs radar energy.

Wind turbine rotor blades with a reduced radar cross sections include a shell having a leading edge opposite a trailing edge, a structural support member that supports the shell and is disposed internal the wind turbine rotor blade between the leading edge and the trailing edge and extends for at least a portion of a rotor blade span length, wherein the structural support member comprises fiberglass, one or more cavities internal the wind turbine rotor blade, and a lightweight broadband radar absorbing filler material disposed in at least one of the one or more cavities to provide the reduced radar cross section.

The invention involves a wind turbine comprising at least one blade (5) in turn comprising a blade body (501), lift-regulating means (502) adapted for movement in relation to the blade body (501) so as to regulate the lift of the blade, and load sensing means (5022, 506) for determining a load acting on the lift-regulating means (502), the wind turbine further comprising an actuation control unit (6) adapted to control the movement of the lift-regulating means (502) based on output from the load sensing means (5022, 506). In addition to output from the load sensing means (5022, 506), the actuation control unit (6) is adapted to control the movement of the lift-regulating means (502) based on the movement of the lift-regulating means (502).