Abstract: A blade for a vertical axis wind turbine is disclosed. The blade comprises a unified skin having variable thickness, including a first skin section with greater thickness than a second skin section. The blade further includes a plurality of internal beam walls that connect a blade outside portion and a blade inside portion, with at least one beam wall positioned at a predefined distance, between 58% and 90% of the chord length, from the leading edge to enhance structural integrity. The blade additionally includes a bracketed structural member that is integrated into the thick skin section and configured to hold a nut bar, enabling secure, reinforcement-free attachment to a turbine arm. The design improves manufacturability, reduces weight, and enhances fatigue resistance under turbulent wind conditions.

Abstract: A method for installing a rotor assembly is disclosed. The method may include attaching a mast bottom end to a tower, and unhooking a first blade-arm bundle. The method may further include laterally extending a blade such that the blade may be disposed at a predefined distance from the mast. The method may further include unhooking a first arm-brace bundle, and attaching a first bracing member distal end to the mast between a mast top end and the mast bottom end. The method may further include unhooking a second blade-arm bundle, and attaching a second arm distal end to the mast. The method may further include unhooking the second arm-brace bundle, and attaching a second bracing member distal end to the mast between the mast top end and the mast bottom end.

Abstract: A method for bundling a collapsible rotor assembly is disclosed. The method may include hooking a first arm with a first bracing member to form a first arm-brace bundle, and hooking the first arm-brace bundle with a blade to firm a first blade-arm bundle. The method may further include hooking a second arm with a second bracing member to form a second arm-brace bundle, and hooking the second arm-brace bundle with the blade to form a second blade-arm bundle. The second arm-brace bundle may be hooked with the blade such that the first blade-arm bundle may be disposed between the second arm-brace bundle and the blade.

Abstract: A method for bundling a collapsible rotor assembly is disclosed. The method may include hooking a first arm with a first bracing member to form a first arm-brace bundle, and hooking the first arm-brace bundle with a blade to firm a first blade-arm bundle. The method may further include hooking a second arm with a second bracing member to form a second arm-brace bundle, and hooking the second arm-brace bundle with the blade to form a second blade-arm bundle. The second arm-brace bundle may be hooked with the blade such that the first blade-arm bundle may be disposed between the second arm-brace bundle and the blade.

Abstract: A method for installing a rotor assembly is disclosed. The method may include attaching a mast bottom end to a tower, and unhooking a first blade-arm bundle. The method may further include laterally extending a blade such that the blade may be disposed at a predefined distance from the mast. The method may further include unhooking a first arm-brace bundle, and attaching a first bracing member distal end to the mast between a mast top end and the mast bottom end. The method may further include unhooking a second blade-arm bundle, and attaching a second arm distal end to the mast. The method may further include unhooking the second arm-brace bundle, and attaching a second bracing member distal end to the mast between the mast top end and the mast bottom end.

Abstract: An embodiment relates generally to a method of playback in a media player. The method includes retrieving at least one song from a media library in a random mode on a media player and playing the at least one song through the media player. The method also includes initiating an album mode on the media player and retrieving remaining songs on an album associated with the at least one song.

Abstract: Embodiments of the present invention relate generally to error reporting methods and systems. An error reporting application may be configured to be a stand-alone program, embedded within another application, or added as a plug-in application. The error reporting application may also be configured to provide a mechanism for a user to describe a problem with another application and send the problem description to a configurable, user defined location. The error report from the error reporting application may then be processed by an error processing system at the user-defined location.

Abstract: A flexible, disposable centrifuge bag for receiving and holding a fluid sample, comprising one or more tubes and upper and lower flexible sheets having doughnut shaped configurations. The upper and lower sheets are superimposed and completely sealed together at their outer perimeters to define an outer perimeter of the centrifuge bag. The inner perimeter of the bag defines a central core. The tubes are sandwiched between the upper and lower sheets and extend from the central core of the centrifuge bag. The upper and lower sheets are sealed together at their inner perimeters such that the tubes are sealed between said upper and lower sheets at the inner perimeter. The bag may be used to harvest platelet rich plasma from whole blood in either a batch method or while simultaneously infusing additional aliquots of whole blood into the bag during centrifugation.

Abstract: A centrifugal method, and corresponding system, for processing blood to collect platelet rich plasma. A separation chamber is filled with blood from a fill syringe by rotating the separation chamber at a fill rotation rate and pumping the blood from the fill syringe. A soft spin is used to initially separate red blood cells from platelets by spinning the separation chamber at a soft spin rate. A percentage of the blood is drawn from the separation chamber back into the fill syringe to remove separated red blood cells. A second portion of the separated blood is drawn from the separation chamber until a red blood cell/platelet interface is detected. A hard spin is performed by spinning the separation chamber at a higher rate and connecting tubing is cleared of red blood cells by drawing a predetermined clearing volume. The platelet rich plasma is then collected in the collection syringe.

Abstract: A rotatable rotor for separating components contained in a fluid, comprising an annular base having a first annular channel and an annular cover having a second annular channel for holding a flexible doughnut-shaped centrifuge bag therebetween. The cover has one or more radially spaced apart concentric indicator lines for monitoring the separation of the components. When the base and cover are superimposed, the first and second channels define an annular interior chamber having an off-centered figure eight configuration. The base and cover each comprise a grooved column axially centered and extending from the base top surface and the cover bottom surface, respectively. The flexible bag comprises inner and outer tubes extending from the core of the bag and which are seated in the column grooves to ensure that the bag is fixably rotatable with the rotor.

Abstract: A flexible, disposable centrifuge bag for receiving and holding a fluid sample, comprising one or more tubes and upper and lower flexible sheets having doughnut shaped configurations. The upper and lower sheets are superimposed and completely sealed together at their outer perimeters to define an outer perimeter of the centrifuge bag. The inner perimeter of the bag defines a central core. The tubes are sandwiched between the upper and lower sheets and extend from the central core of the centrifuge bag. The upper and lower sheets are sealed together at their inner perimeters such that the tubes are sealed between said upper and lower sheets at the inner perimeter. The bag may be used to harvest platelet rich plasma from whole blood in either a batch method or while simultaneously infusing additional aliquots of whole blood into the bag during centrifugation.

Abstract: A flexible, disposable centrifuge bag for receiving and holding a fluid sample, comprising one or more tubes and upper and lower flexible sheets having doughnut shaped configurations. The upper and lower sheets are superimposed and completely sealed together at their outer perimeters to define an outer perimeter of the centrifuge bag. The inner perimeter of the bag defines a central core. The tubes are sandwiched between the upper and lower sheets and extend from the central core of the centrifuge bag. The upper and lower sheets are sealed together at their inner perimeters such that the tubes are sealed between said upper and lower sheets at the inner perimeter. The bag may be used to harvest platelet rich plasma from whole blood in either a batch method or while simultaneously infusing additional aliquots of whole blood into the bag during centrifugation.

Abstract: An embodiment relates generally to a method of playback in a media player. The method includes retrieving at least one song from a media library in a random mode on a media player and playing the at least one song through the media player. The method also includes initiating an album mode on the media player and retrieving remaining songs on an album associated with the at least one song.

Abstract: A rotatable rotor for separating components contained in a fluid, comprising an annular base having a first annular channel and an annular cover having a second annular channel for holding a flexible doughnut-shaped centrifuge bag therebetween. The cover has one or more radially spaced apart concentric indicator lines for monitoring the separation of the components. When the base and cover are superimposed, the first and second channels define an annular interior chamber having an off-centered figure eight configuration. The base and cover each comprise a grooved column axially centered and extending from the base top surface and the cover bottom surface, respectively. The flexible bag comprises inner and outer tubes extending from the core of the bag and which are seated in the column grooves to ensure that the bag is fixably rotatable with the rotor.

Abstract: A flexible, disposable centrifuge bag for receiving and holding a fluid sample, comprising one or more tubes and upper and lower flexible sheets having doughnut shaped configurations. The upper and lower sheets are superimposed and completely sealed together at their outer perimeters to define an outer perimeter of the centrifuge bag. The inner perimeter of the bag defines a central core. The tubes are sandwiched between the upper and lower sheets and extend from the central core of the centrifuge bag. The upper and lower sheets are sealed together at their inner perimeters such that the tubes are sealed between said upper and lower sheets at the inner perimeter. The bag may be used to harvest platelet rich plasma from whole blood in either a batch method or while simultaneously infusing additional aliquots of whole blood into the bag during centrifugation.

Abstract: Embodiments of the present invention relate generally to error reporting methods and systems. An error reporting application may be configured to be a stand-alone program, embedded within another application, or added as a plug-in application. The error reporting application may also be configured to provide a mechanism for a user to describe a problem with another application and send the problem description to a configurable, user defined location. The error report from the error reporting application may then be processed by an error processing system at the user-defined location.

Abstract: A medical fluid delivery system for the use in the delivery of medical fluids. The medical fluid delivery system may include a pumping system, a disposable medical fluid line set and a valve operating system. The disposable tubing line set may include valves adapted to interface with the valve operating system. The valve operating system may be adapted to operate only selected valves using a single drive means. The pumping system may be operated over a wide range of medical fluid delivery rates by employing a bi-directional drive member and a transmission interfaced with the drive member and a pump.

Abstract: A medical fluid delivery system for the use in the delivery of medical fluids. The medical fluid delivery system may include a pumping system, a disposable medical fluid line set and a valve operating system. The disposable tubing line set may include valves adapted to interface with the valve operating system. The valve operating system may be adapted to operate only selected valves using a single drive means. The pumping system may be operated over a wide range of medical fluid delivery rates by employing a bi-directional drive member and a transmission interfaced with the drive member and a pump.

Abstract: A rotatable rotor for separating components contained in a fluid, comprising an annular base having a first annular channel and an annular cover having a second annular channel for holding a flexible doughnut-shaped centrifuge bag therebetween. The cover has one or more radially spaced apart concentric indicator lines for monitoring the separation of the components. When the base and cover are superimposed, the first and second channels define an annular interior chamber having an off-centered figure eight configuration. The base and cover each comprise a grooved column axially centered and extending from the base top surface and the cover bottom surface, respectively. The flexible bag comprises inner and outer tubes extending from the core of the bag and which are seated in the column grooves to ensure that the bag is fixably rotatable with the rotor.