Abstract: A system and method for controlling a grid-connected reactive power compensation inverter. The system uses a combination of feedforward and feedback controls to compute a reference voltage signal based on sensor-measured voltages and currents, where the reference voltage signal is used to control the inverter switches. The disclosed method modifies a cross-couple feedforward signal used in the reference voltage calculations, where the modified cross-couple signal includes a combination of both reference and actual currents, and the modified control scheme reduces the DC-link voltage overshoot experienced during a capacitive overload event while still providing the required reactive power and maintaining grid system stability.

Abstract: A gateway provides duplex-directional, multimedia ad hoc mesh networking, peer-to-peer direct communications, power optimization, dynamic configuration, and data management, while operating within various devices and network topologies. A multitasking virtual machine monitor for mobile networked devices, that is capable of functional expandability and portability to various operating environments, interoperability with a variety of operating systems, the Gateway Control System (GCS) performs functional capabilities in both a local and a networked topology using local and remote hardware and software. Software within the GCS is partitioned into sequentially, autonomous code, referred to herein as “modules,” each module being configured to communicate with hardware and other gateway modules. Collectively, all gateway modules are referred to herein as the gateway stack (GS). Each member of the GS can be turned on or off, downloaded from a remote site, and dynamically configured.

Abstract: An optical rail system that includes an electronic component mount configured to be mounted on rails between two previously-mounted electronic component mounts without the need of removing one of the two previous-mounted mounts. The electronic component mount includes grooves configured to securely register with respective portions of the rails. The mount further comprises locking devices for securely locking the portions of the rails to the housing within the grooves. The mount additionally includes a dock for securely hosting one or more optical components. Also disclosed is a rail mount for facilitating the mounting the optical rail system to an optical table or other structure. The rail mount includes grooves for securely registering with respective portions of the rails, locking devices for more securely locking the rails within the grooves, and an attachment structure for attaching the rail mount to a post, the post being configured for mounting to an optical table or other structure.

Abstract: A system and method for controlling a grid-connected inverter to provide negative sequence current during unbalanced grid operating conditions. The system uses a combination of feedforward and feedback controls to compute voltage signals which are used to control the inverter switches. The system includes both positive and negative sequence current controllers with voltage feedforward terms. The measured grid voltage is directly fed forward to the positive sequence control through a predictive algorithm, so that the instantaneous voltage information is kept, reducing the influence of grid voltage harmonics on the quality of the output current. The predictive voltages include positive, negative and harmonic component information of the grid voltage signals.

Abstract: A system and method for controlling a grid-connected reactive power compensation inverter. The system uses a combination of feedforward and feedback controls to compute a reference voltage signal based on sensor-measured voltages and currents, where the reference voltage signal is used to control the inverter switches. The disclosed method modifies a cross-couple feedforward signal used in the reference voltage calculations, where the modified cross-couple signal includes a combination of both reference and actual currents, and the modified control scheme reduces the DC-link voltage overshoot experienced during a capacitive overload event while still providing the required reactive power and maintaining grid system stability.

Abstract: An appliance is provided that includes a control unit, a plurality of components, and a touchscreen in which the plurality of components and touchscreen are configured to operate under control of the control unit. A graphical user interface (GUI) may be generated for display by the touchscreen. The GUI may include graphical control elements for respective components of the plurality of components. For each graphical control element of the graphical control elements, a touch gesture to drag the graphical control element may be detected for a component of the respective components. In response, a mode or setting of a plurality of modes or settings of the component may be adjusted.

Abstract: The present application discloses an optical post system for use with an optical mount device and includes at least one post body having at least one engaging surface formed thereon, at least one fastener recess configured to receive at least one fastener configured to couple the optical post system to at least one work surface therein formed in the post body, at least one fastener adjustment relief having at least one angled fastener plate positioned therein formed in the post body wherein the fastener adjustment relief is in communication with the fastener via the fastener recess.

Abstract: A system and method for an adaptive graphic user interface (AGUI) (501) that can identify the characteristics of one or more users and display candidates and dynamically select display content and generate an interface (502-506 . . . ) customized to one or more users and display candidates and dynamically arrange, modify, map and adapt an AGUI display to any object (350,730), device, clothing, equipment, furniture, appliance, room, building, vehicle, person, or other passive or active display surface, screen, space or other display candidate and embodiments of an AGUI apparatus (500) that can network, coordinate and/or operate with the AGUI platform (1302) to identify one or more users and display candidates and enabling one or more users to interface with a single AGUI display across multiple display candidates.

Abstract: A pair of eyeglasses (100) has a frame (104) and lenses (102) mounted on the frame. A computer processor (130) is mounted on eyeglasses together with a plurality of cameras (105) and a digital projection system. IR sensors and/or dual zoom cameras may also be mounted on the glasses (100) and configured to track the movement of the user's hand (800).

Abstract: An optical mount system that may be adjusted by a variety of devices and methods. In some cases, a post collar assembly may be configured to engage a collar coupling surface of a post holder body such that the post collar engages the collar coupling surface in indexed and predetermined angular positions. In some cases, a base of a post holder body may be configured to accept a secondary base element in the form of a mounting adapter which may be releasably secured the base to provide additional stiffness for the mounting of the base to a reference surface.

Abstract: Various embodiments include apparatuses for performing maintenance on a gas turbine bearing area, along with related methods. One apparatus can include: a set of rails sized to couple with the gas turbine and rest coaxially with a bearing adjacent the gas turbine, the set of rails for supporting a portion of a housing of the bearing; a first platform spanning between the set of rails; a lifting device coupled to the first platform for engaging an inlet bellmouth of the gas turbine; and a second platform suspended from the set of rails sized to accommodate an operator.

Abstract: A novel optical component mount is disclosed, which includes at least one first mount body with at least one adjustment member traversing through at least one adjustment member passage formed in the first mount body. At least one second mount body is configured with at least one component aperture formed therein and at least one insert receiver formed therein. The insert receiver is configured to receive at least one thermal compensating positioning insert positioned in the insert receiver. The coefficient of thermal expansion of the thermal compensating positioning insert is configured to be equal to the coefficient of thermal expansion of the adjustment member. At least one engaging body is positioned in the thermal compensating insert and engages the adjustment member. The engaging body is configured having a coefficient of thermal expansion less than the coefficient of thermal expansion of the thermal compensating positioning insert and the coefficient of thermal expansion of the adjustment member.

Abstract: A hubcap for an aircraft wheel comprises a generally cup-like body for covering, in use, a free end of an axle. The cup-like body has an end wall, a side wall and an open end opposite the end wall. The hubcap further comprises one or more elongate formations protruding from an outer surface of the side wall and extending from close to the end wall towards the open end of the body, wherein the height of the or each elongate formation varies or tapers continuously or discontinuously from a maximum to a minimum along at least a portion of its length in a direction towards or away from the closed end of the cup-like body.

Abstract: Programmable timer circuits are disclosed. One timer circuit may include a reference circuit configured to generate a bias current, a current controlled oscillator configured to receive the bias current c, and a frequency divider network configured to divide an output of the oscillator. The timer circuit may be capable of timing for 24 hour period, while using less than 5nA of quiescent current.

Abstract: A hands-free wireless wearable GPS enabled video camera and audio-video communications headset, mobile phone and personal media player, capable of real-time two-way and multi-feed wireless voice, data and audio-video streaming, telecommunications, and teleconferencing, coordinated applications, and shared functionality between one or more wirelessly networked headsets or other paired or networked wired or wireless devices and optimized device and data management over multiple wired and wireless network connections. The headset can operate in concert with one or more wired or wireless devices as a paired accessory, as an autonomous hands-free wide area, metro or local area and personal area wireless audio-video communications and multimedia device and/or as a wearable docking station, hot spot and wireless router supporting direct connect multi-device ad-hoc virtual private networking (VPN).

Abstract: Various embodiments include apparatuses for performing maintenance on a gas turbine (GT) nozzle, along with related methods. One apparatus can include: a nozzle engagement sled for releasably engaging the nozzle, the nozzle engagement sled including: a sled body; a locking member coupled with the sled body, the locking member sized to complement a slot in the nozzle; a sled slot within a side of the sled body, the sled slot for engaging a rail within the GT; and at least one wheel for transporting the sled body within the GT.

Abstract: An apparatus and method for light and optical depth mapping, 3D imaging, modeling, networking, and interfacing on an autonomous, intelligent, wearable wireless wrist computing, display and control system for onboard and remote device and graphic user interface control. Embodiments of the invention enable augmentation of people, objects, devices and spaces into a virtual environment and augmentation of virtual objects and interfaces into the physical world through its wireless multimedia streaming and multi-interface display and projection systems.

Abstract: A portable camping and survival stove includes a stand comprising a pair of flat stock lower cross-members adjoined via a complementary slot in each member, each lower cross-member having a lower edge and a pair of double tabs spaced apart on an upper edge configured to secure on a shelf there between a lower edge of a rigid container. The disclosed stove also includes a cook top comprising a pair of flat stock upper cross-members adjoined via a complementary slot in each member, each upper cross-member having an upper cooking edge and a pair of double tabs spaced apart on a lower edge configured to secure on a shelf there between an upper edge of the rigid container. Furthermore, the rigid container may be a discarded can or a collapsible four-sided container for flammable material and include holes for air flow in a bottom and at least one side thereof.

Abstract: A transdermal permeant delivery of at least one permeant composition into a tissue membrane of a subject including a disposable substrate having at least a portion of a bottom surface of a first release liner connected to an upper surface of the substrate and a patch having a backing layer and a reservoir that is selectively removable from the top surface of the first release liner. In a connected position, a first portion of the backing layer of the patch is releaseably mounted to a top surface of the first release liner in spaced registration with a poration area of the substrate.

Abstract: A hands-free wireless wearable GPS enabled video camera and audio-video communications headset, mobile phone and personal media player, capable of real-time two-way and multi-feed wireless voice, data and audio-video streaming, telecommunications, and teleconferencing, coordinated applications, and shared functionality between one or more wirelessly networked headsets or other paired or networked wired or wireless devices and optimized device and data management over multiple wired and wireless network connections. The headset can operate in concert with one or more wired or wireless devices as a paired accessory, as an autonomous hands-free wide area, metro or local area and personal area wireless audio-video communications and multimedia device and/or as a wearable docking station, hot spot and wireless router supporting direct connect multi-device ad-hoc virtual private networking (VPN).