Abstract: A method includes determining, by an access point device, whether a channel is clear. The channel includes an unlicensed carrier. The method also includes sending an omnidirectional request-to-send transmission containing a beam identifier that the access point device will use for transmitting data; and receiving a clear-to-send message in response to the request-to-send message. In response to receiving the clear-to-send message, the method includes performing directional transmission of data using the beam identified in the request-to-send transmission.

Abstract: A structure of SiGe source/drain and a preparation method thereof are disclosed in the present invention. Firstly, providing a semiconductor single crystal silicon substrate. Secondly, etching the semiconductor single crystal silicon substrate to form recesses on both sides of the gate. Thirdly, epitaxially growing a SiGe seed layer and a SiGe bulk layer in the recesses in turn. Fourthly, subjecting the SiGe bulk layer to a crystal plane treatment with a mixed-gases. Fifthly, epitaxially growing a lattice change layer on the SiGe bulk layer. Finally, epitaxially growing a cap layer on the lattice change layer. The preparation method of the present invention can greatly improve the morphology of the SiGe epitaxy in the incomplete Un-tuck structure, and promote the formation of the subsequent metal silicide (NiSi), so that problems such as abnormal resistance and leakage of active area (AA leakage) can be effectively prevented.

Abstract: Methods, apparatuses, systems, and implementations for creating a patient-specific soft bolus for radiotherapy treatment are disclosed. 2D and/or 3D images of a desired radiotherapy treatment site may be acquired, such as the head, neck, skin, breast, anus, and/or vulva. A user may interact with one or more representations of the images via an interactive user interface such as a graphical user interface (GUI). The images may include target/avoidance structures and radiation beam arrangement. The user may interact with the images to create a visualization of a patient-specific bolus. The visualization and properties of the bolus may be modified as the user manipulates aspects of the image. Data corresponding to the bolus models may be used to create 3D printed negative molds of the bolus model using 3D printing technology. A soft patient-specific bolus may be cast using the 3D printed model.

Abstract: An uplink non-orthogonal multiple access for narrowband machine type communication used for the deployment of Internet of Things (IoT) interconnected devices where one or more user equipment are configured for uplink transmission with one or more uplink time-frequency regions for enhanced Machine Type Communication Non-Orthogonal Multiple Access. The configuring is based on defining and signaling one or more signal thresholds and one or more of a resource assignment, a starting subframe periodicity, a starting subframe offset, a time duration in each period, a demodulation reference signal cyclic shift assignment, orthogonal cover code assignment, and interleaver assignment.

Abstract: An inverter power cabinet includes a cabinet body and power devices arranged in the cabinet body. The cabinet body includes a low-protection grade installation cavity and an airtight high-protection grade installation cavity hermetically isolated from each other; the power devices include high protection grade power devices arranged in the low-protection grade installation cavity and low-protection grade power devices arranged in the high-protection grade installation cavity; the low-protection grade installation cavity has an outer cold air inlet and an inner hot air outlet in communication with outside world, and a first fan is provided in the low-protection grade installation cavity; and the inverter power cabinet includes a heat exchanger configured to dissipate heat of the high-protection grade installation cavity.

Abstract: Systems, methods, apparatuses, and computer program products relating to support MIMO on the UL with flexibility and enhanced performance, for example, in 5G or new radio access technology (NR).

Abstract: A system and method for validating the accuracy of delineated contours in computerized imaging using statistical data for generating assessment criterion that define acceptable tolerances for delineated contours, with the statistical data being conditionally updated and/or refined between individual processes for validating delineated contours to thereby adjust the tolerances defined by the assessment criterion in the stored statistical data, such that the stored statistical data is more closely representative of a target population. In an alternative embodiment, a system and method for validating the accuracy of delineated contours in computerized imaging using machine learning for assessing delineated contours, with the machine learning training data being used to generate geometric attributes, and the geometric attributes used to construct intra- and interstructural geometric attribute distribution models to automatically detect contouring errors.

Abstract: Features and advantages of the present disclosure include a multimode voltage controlled oscillator (VCO). In one embodiment, a circuit comprises a VCO, first and second transistors, and first and second capacitive attenuators. The first and second transistors are cross coupled through the attenuators. In a first mode, the first and second transistors are turned off, and the capacitive attenuators attenuate a signal on output terminals of the VCO at control inputs of the first and second transistors. In another mode, the first and second transistors are turned on, and the capacitive attenuation is reduced or turned off so that control inputs of the first and second transistors receive signals on the outputs of the VCO.

Abstract: Various communication systems may benefit from identification of and communication of coverage shortfall. For example, certain communication systems that employ machine type communication devices may benefit from having such shortfall communicated from the devices to a base nation. For example, a method can include determining an amount of coverage shortfall of a device. The method can also include transmitting an indication of the amount of coverage shortfall.

Abstract: A method, apparatus, and computer program product are described that receive an indication of power levels at the base station in a wireless communications system from each user equipment of user equipments served by the base station and determine whether at least one user equipment of those user equipments is capable to overlap at least one same time-frequency resource as at least one user equipment of a remainder of those user equipments. In response to the determination that at least one user equipment is capable to overlap with at least one user equipment of the remainder, then such overlap is scheduled. Based on the overlap being scheduled, packets from the one or more user equipments received are then decoded using an advanced receiver process.

Abstract: Systems, methods, apparatuses, and computer program products for a UE-specific codebook design are provided. One method may include determining, by a network node, variable spacing between antenna elements of a user equipment. The method may also include configuring user equipment specific precoders based on the variable spacing between the user equipment antenna elements.

Abstract: Encoding System for Incremental Redundancy for Hybrid ARQ for Wireless Networks A technique is provided for encoding, by an outer encoder, a set of information bits; performing, by each polar sub-encoder of a set of polar sub-encoders, polar encoding of bits received from the outer encoder for a corresponding incremental redundancy (IR) hybrid ARQ (HARQ) transmission; and performing, by an inner encoder, for each bit input to the inner encoder from one of the polar sub-encoders for the HARQ transmission, an Exclusive Or (XOR) operation with another bit, to generate a set of code bits for an IR-HARQ transmission over a channel.

Abstract: A system and method for validating the accuracy of delineated contours in computerized imaging using statistical data for generating assessment criterion that define acceptable tolerances for delineated contours, with the statistical data being conditionally updated and/or refined between individual processes for validating delineated contours to thereby adjust the tolerances defined by the assessment criterion in the stored statistical data, such that the stored statistical data is more closely representative of a target population. In an alternative embodiment, a system and method for validating the accuracy of delineated contours in computerized imaging using machine learning for assessing delineated contours, with the machine learning training data being used to generate geometric attributes, and the geometric attributes used to construct intra- and interstructural geometric attribute distribution models to automatically detect contouring errors.

Abstract: Provided herein are recombinant polypeptides and formulations thereof that can modulate binding of an ApoE protein to an ApoE receptor and/or APP. Also provided herein are methods of administering the recombinant polypeptides and formulations thereof to a subject in need thereof. The subject in need thereof can have or be suspected of having a neurological disease or disorder.

Abstract: A spintronic device controls both the electrical charge and the spin of electrons to transmit, process, and store information. The control of electron spin provides additional degrees of freedom to modify the electric and magnetic properties of materials such as magnetic anisotropy. However, the development and integration of spintronic devices has been limited, in part, by the lack of a robust approach to electrically gate magnetism. Conventional approaches to gating magnetism either exhibit impractically small changes to the properties of a magnet or limited operating lifetime due to material degradation. Here, a magneto-ionic device operates using a hydrogen-gated magneto-ionic mechanism to overcome these shortcomings. A gate voltage applied to the magneto-ionic device causes protons to move towards a magnetic layer where the protons reduce to hydrogen. The presence of hydrogen and protons leads to large changes in the magnetic layer without degradation. This voltage-induced process is reversible.

Abstract: Various communication systems may benefit from identification of and communication of coverage shortfall. For example, certain communication systems that employ machine type communication devices may benefit from having such shortfall communicated from the devices to a base nation. For example, a method can include determining an amount of coverage shortfall of a device. The method can also include transmitting an indication of the amount of coverage shortfall.

Abstract: Systems, methods, apparatuses, and computer program products relating to support MIMO on the UL with flexibility and enhanced performance, for example, in 5G or new radio access technology (NR).

Abstract: Disclosed is cycloidal pin wheel harmonic transmission device, includes camshaft, flexible bearing, flexible wheel, roller pins and rigid wheel. The flexible bearing is mounted on the camshaft with elliptical shape. The flexible wheel has inner ring cooperated with outer ring of the flexible bearing, and outer teeth surface contacted with each roller pin. The roller pins are evenly disposed inside semicircular groove of the rigid wheel. The flexible wheel is fixedly connected with inner ring and the rigid wheel is fixedly connected with outer ring of the main bearing. Both teeth height and root have cycloidal teeth profiles reduces the risk of breakage failure, possible to obtain larger engagement without deep engaging distance. Teeth width is large, used for the engagement, the surface specific pressure is small. It is possible to withstand large torque to reduce the amount of deformation of the flexible wheel, and to greatly improve the longevity.

Abstract: Disclosed is a low-back-clearance robot speed reducer, comprising a wheel holder (16), a pin gear shell (1), a first cycloidal wheel (6), a roller pin (8), a second cycloidal wheel (11), a gland (2), an elastic member (9), a first cross-shaped slider (5), a second cross-shaped slider (13) and a crankshaft (10). The first cycloidal wheel (6) and the second cycloidal wheel (11) are in a phase relation of 180 degrees and have a multi-point engagement transmission relationship with the pin gear shell (1) and the roller pin (8). The first cross-shaped slider (5) and the second cross-shaped slider (13) form a double cross-shaped slider structure, in which the groove profile of the sliders is of a trapezoidal groove structure. A clearance is automatically axially compensated by the elastic member (9). The center of rotation of the crankshaft (10) is coaxial with the wheel holder (16) and the gland (2).

Abstract: Embodiments described herein encode data for multiple-segment transmission in a communication channel by encoding payload bits with an outer code and distributing the outer encoded payload bits to a plurality of N element coders, where N is an integer greater than one. At each of the N element coders the respectively input outer encoded payload bits are encoded with a respective element code. Outputs of the N element coders are encoded with an inner code such that the inner code applied to at least one of the outputs of the N element coders is a function of the output of at least one other of the N element coders. Finally, N discrete inner coded outputs are provided for transmission in respective N discrete segments of a wireless channel. The examples present polar element coders and the inner code combines outputs of certain element coders with an exclusive-OR function.