Abstract: A system is provided. The system includes a display configured to output a virtual image. The system also includes a lens assembly optically coupled to the display and including a plurality of optical lenses. The system also includes a controller configured to selectively activate one or more of the plurality of optical lenses, determine a lens center shift between a center of the selectively activated one or more of the plurality of optical lenses and a center of the lens assembly, and determine an image shift based on the lens center shift for shifting the virtual image output from the display.

Abstract: Provided is a transversal radio frequency filter circuit having a low noise amplifier connected along an input signal path, a first power divider connected between the low noise amplifier and four single taps, and an output path connected to the outputs of each of the four single taps. Each of the four single taps having a coefficient control mechanism, a polarity selection mechanism, and a time delay element. The coefficient control mechanism can include a wideband digital step attenuator configured to support high control range of the coefficient. Additionally, the circuit can include a second power divider connected between the outputs of each of the four single taps and the output path. The circuit can further include a field-programmable gate array configured to control coefficient control mechanisms, the polarity selection mechanisms, and the time delay elements.

Abstract: An optical assembly includes a plurality of successive optical stages that are configured to transmit light at a variable overall optical power by configuring one or more stages of the successive optical stages. A respective optical stage of the successive optical stages includes an active optical element that is configurable to be in a first state at a first time and a second state at a second time that is distinct from the first time. The active optical element, in the first state, has a first respective optical power for light of a first polarization and a second respective optical power, that is different from the first respective optical power, for light of a second polarization that is orthogonal to the first polarization. The active optical element, in the second state, has a third optical power for light of the first polarization and light of the second polarization.

Abstract: The specification discloses a vibratory screening apparatus for screening mined ore materials utilizing elliptical vibration, the apparatus having a static section, a dynamic section including a screening deck, the apparatus having three pairs of rotary motion exciter cells positioned with a first group of three said rotary motion exciter cells on a first side of the dynamic section and a second group of three said rotary motion exciter cells on a second side of the dynamic section, each of the cells in said first group forming a pair with a respective one of the cells in the second group, the apparatus further including drive means for rotationally driving the cells, and mechanical synchronisation means linking rotation of a first said pair to a second said pair of the cells whereby, in use, rotation of said pairs of cells are mechanically synchronised.

Abstract: A method of estimating cumulative damage of a vibrating machine with a base and a movable part movable relative to the base including the steps of: providing a computational model which estimates mechanical stress on a portion of the vibrating machine which uses the machine mass, and weight mass and load distribution of feed material, and acceleration to determine the estimated mechanical stress; estimating weight mass and load distribution of feed material; estimating measuring acceleration; providing the mass of the movable part, estimated weight mass and load distribution on the moving part and the estimated acceleration of the moveable part to the model obtaining estimated mechanical stress of the portion of the vibrating machine; recording the estimated mechanical stress of the portion of the vibrating machine over time; and estimating cumulative damage to the portion of the vibrating machine based on two or more successive recorded mechanical stress estimations.

Abstract: A method and system for preventing duplicate orders in a client-server architecture, the method including and the system operable for: storing in a database an indicator that an order has been placed for an order identification; when a front-end system calls a back-end system to place a subsequent order for another order identification, the back-end system checking the database to see if the another order identification matches the order identification for the placed order using the indicator; and, if so, the back-end system labeling the subsequent order as a duplicate order and disregarding the subsequent order, but returning a successful return code to the front-end system. The indicator that the order has been placed for the order identification is only stored in the database for a dynamically adjustable threshold period of time, after which period of time the subsequent order is determined to be a new order that is processed.

Abstract: In implementations of NGAC graph evaluations, a computing device implements a next generation access control (NGAC) graph that includes user elements representing users, object elements representing resources, and multiple policy classes. Policy binding nodes can be modeled as user attributes in the NGAC graph for each of the multiple policy classes, and each policy binding node is assigned to a corresponding one of the multiple policy classes. A user element is assigned as a member of a policy binding node, and the policy binding node delineates at least one policy permission on an object element and grants the policy permission on the object element to the user element. The computing device implements a policy decision module to evaluate the NGAC graph with a graph evaluation procedure to determine graph analysis information relative to at least one of the user element, the granted policy permission, or the object element.

Abstract: According to examples, a learning based, end-to-end compression system may include an encoder, which may receive a complex hologram image and encode a latent code for a real component and an imaginary component of the hologram image. The system may also include a quantizer to quantize the latent code and a transform block, which may entropy-code the quantized latent code to obtain a compressed image. The system may further include a generator to decode the compressed image and a discriminator, which may classify the decoded image to obtain an uncompressed image. In case of holographic video input, the encoder may encode a frame to obtain a standard compressed frame and a residual to a latent code. The generator may decode the standard compressed frame and the latent code to obtain a reconstructed residual, and the discriminator may combine the uncompressed standard frame and the reconstructed residual.

Abstract: The present invention relates to methods for screening for the presence of a biosynthetic gene cluster (BGC) in a cell, via the identification of proximal positive 5 regulatory genes, e.g. large ATP-binding regulators of the LuxR family (LAL) genes.

Abstract: A head mounted display (HMD) includes a set of one or more lenses defining an optical axis, a display configured to project light through the set of the one or more lenses, a voice coil actuator coupled with the display and configured to move the display along the optical axis, and a first guide that is separate from the first voice coil actuator and coupled with the first display to guide the movement of the first display. The HMD additionally includes a set of one or more position sensors configured to determine a position of the display long the optical axis and an electronic controller configured to receive information identifying a reference position of the display along the optical axis and generate one or more electrical signals for initiating a movement of the first display toward the first reference point along the optical axis.

Abstract: A novel amino acid derivative is provided, wherein the amino acid derivative is expected to improve solubility of polypeptides comprising the derivative therein.

Abstract: A display system includes a source of unpolarized image light, and a stack of polarization-selective optical elements operable to switchably convert the unpolarized image light into two orthogonally polarized light beams, each of which being switchable in at least one beam characteristic. An output polarizer selects one of the two orthogonally polarized light beams for providing to a user. A depolarizer may be disposed between an electronic display emitting polarized light and the stack. The depolarizer may be in the form of an LC bilayer with randomized in-plane optic axis.

Abstract: A head-mounted display device includes one or more lenses and a display configured to provide visual data through the one or more lenses. The head-mounted display device also includes a direct-current (DC) motor mechanically coupled to the display, and the DC motor is configured to move the display along an axis by rotating a rotatable component of the DC motor. The head-mounted display device further includes: position sensor(s) configured to determine a position of the display, and electronic controller(s) in communication with the position sensor(s). The electronic controller(s) are configured to: (i) receive, from the position sensor(s), the determined position of the display as a first position of the display, (ii) receive information identifying a second position of the display, and (iii) generate electrical signal(s) that cause the DC motor to move the display from the first position to the second position along the axis.

Abstract: According to examples, a display system may include a head-mounted display (HMD) headset. The HMD may comprise at least one exterior-facing RBG camera mounted on a front face of the HMD and on a same visual plane of a user's eye. The at least one exterior-facing RBG camera may collects images for view synthesis. The HMD may include a processor, and a memory storing instructions, which when executed by the processor, cause the processor to provide view synthesis in accordance with a machine-learning (ML) based technique comprising at least one of the following: depth estimation, imaging to sharpening, forward splatting, disocclusion filtering, or fusion.

Abstract: A display system includes a source of unpolarized image light, and a stack of polarization-selective optical elements operable to switchably convert the unpolarized image light into two orthogonally polarized light beams, each of which being switchable in at least one beam characteristic. An output polarizer selects one of the two orthogonally polarized light beams for providing to a user. A depolarizer may be disposed between an electronic display emitting polarized light and the stack. The depolarizer may be in the form of an LC bilayer with randomized in-plane optic axis.

Abstract: A display device includes a display module for providing first image light. The display device also includes a first optical element for receiving and transmitting the first image light from the display module. The display module includes a region from which the first image light is provided in directions other than a direction perpendicular to the first optical element. The display device further includes a second optical element so that the second optical element receives the first image light transmitted through the first optical element and sends the received first image light back toward the first optical element as second image light. The first optical element receives the second image light from the second optical element and sends the second image light back toward the second optical element, and the second optical element receives and transmits the second image light from the first optical element.