Abstract: A composite component comprising a plurality of plies and a plurality of pins extending transversely to the plies, wherein the pins comprise a magnetic material. A magnetic field generator is configured to generate a magnetic field through a thickness direction of the component; and a sensor is provided for detecting a change in magnetic flux indicative of delamination of the plies.

Abstract: An apparatus for generating a giant electrorheological (ER) effect includes an upper high voltage electrode and a lower high voltage electrode, the upper high voltage electrode and the lower high voltage electrode each covered with a water-absorbing material and have water absorbed thereon. The apparatus also includes a fluid channel formed by layers and positioned in a gap between the upper high voltage electrode and the lower high voltage electrode; a pressure sensor positioned at one of the high voltage electrodes; a pump to flow silicon oil through the fluid channel; and a high voltage source configured to apply a voltage to the upper high voltage electrode. A method for generating a ER utilizes the apparatus.

Abstract: A method comprises: sorbing a sample solution comprising nucleic acids to a sample receiving portion of a quartz fiber filter by contacting the sample solution with the sample receiving portion; and washing the sample receiving portion while keeping most of nucleic acids around the sample receiving portion by flowing a wash solution through the sample receiving portion under a wicking force directed away from the sample receiving portion. An associated apparatus is also provided.

Abstract: A five-level rectifier includes at least one phase bridge arm that includes an upper-half and a lower-half bridge arm circuit modules. The upper-half bridge arm circuit module includes a first power semiconductor switch unit, a second power semiconductor switch unit, a first diode unit, a second diode unit, a first connecting busbar, a first insulated wire and a first transfer busbar; the lower-half bridge arm circuit module includes a third power semiconductor switch unit, a fourth power semiconductor switch unit, a third diode unit, a fourth diode unit, a second connecting busbar, a second insulated wire and a second transfer busbar. The two modules are disposed side by side and facing each other.

Abstract: A composition for preparing high-performance glass fiber by tank furnace production comprising in preferred percentage by weight: 57.5˜62.5% of SiO2,14.5˜17.5% of Al2O3,13.5˜17.5% of CaO,6.5˜8.5% of MgO,0.05˜0.6% of Li2O,0.1˜2% of B2O3,0.1˜2% of TiO2,0.1˜2% of Na2O,0.1˜1% of K2O and 0.1˜1% of Fe2O3 and (CaO+MgO)/MgO>3, with the content of at least one of the three components, Li2O, B2O3 and TiO2higher than 0.5%, with the composition yielding glass fiber having improved mechanical property, causing the melting and clarification of glass and forming performance of fiber close to those of boron-free E glass, and facilitating industrial mass production by tank furnace processes with manufacturing costs close to those of conventional E glass.

Abstract: A wearable electronic device includes a housing, an electronic module received in the housing, and a cover assembly. The cover assembly includes a cover and a rotating member. A first end of the rotating member is rotatably connected to the cover. A second end of the rotating member is detachably latched to the cover. When the rotating member is latched to the cover, the rotating member resists against the housing.

Abstract: A housing includes a composite panel, a printing layer, and an injection layer. The composite panel includes a base layer, a cementing layer, and a film. The film is integrally glued on the base layer by the cementing layer, the printing layer is disposed on the base layer opposite to the film, and the injection layer is disposed to the printing layer. The present disclosure further relates to a method for making the housing.

Abstract: A mechanism for facilitating dynamic phase detection with high jitter tolerance for images of media streams is described. In one embodiment, a method includes calculating stability optimization of an image of a media stream based on a plurality of pixels of two or more consecutive frames relating to a plurality of phases of the image, calculating sharpness optimization of the image, and selecting a best phase of the plurality of phases based on the stability and sharpness optimization of the image. The best phase may represent the image such that the image is displayed in a manner in accordance with human vision perceptions.

Abstract: A wearable electronic device includes a first casing, a second casing, and a main body. The second casing is detachably attached to the first casing. The main body is sandwiched between the first casing and the second casing and includes an electronic component assembly and a housing. The housing defines two holder spaces on opposite sides to receive the electronic component assembly, the housing is configured to latch to the first casing.

Abstract: Provided is a magnetic attraction-fixing assembly and a rotating support structure for a portable device. The magnetic attraction-fixing assembly comprises two magnetic units, the two magnetic units stacked with and attracting each other; wherein each of the magnetic units respectively comprises a circular magnetic component and at least one annular magnetic component around the circular magnetic component, a magnetic pole of the circular plane of the circular magnetic component is an unlike pole to a magnetic pole of an annular plane of the annular magnetic component that is adjacent to the circular magnetic component. The rotating support structure comprises two magnetic units and a body. Magnetic attractions in both radial and axial directions are enhanced.

Abstract: Methods are disclosed herein for increasing bone mass and strength or bone fracture healing in a subject. The methods include administering to the subject a therapeutically effective amount of multipotent stem cells, wherein each multipotent stem cell is transformed with a recombinant nucleic acid molecule comprising a heterologous promoter operably linked to a nucleic acid encoding platelet derived growth factor (PDGF) B, and wherein the multipotent stem cells express a sufficient amount of PDGFB to increase bone mass and strength or bone fracture healing. A lentiviral vector also is disclosed that includes a phosphoglycerate kinase-1 (PGK) promoter operably linked to a nucleic acid encoding PDGFB.

Abstract: A magnetic attraction-fixing assembly and a rotating support structure for a portable device are provided. The magnetic attraction-fixing assembly includes two magnetic units, the two magnetic units stacked with and attracting each other; wherein each of the magnetic units respectively comprises a circular magnetic component and at least one annular magnetic component around the circular magnetic component, a magnetic pole of the circular plane of the circular magnetic component is an unlike pole to a magnetic pole of an annular plane of the annular magnetic component that is adjacent to the circular magnetic component. The rotating support structure comprises two magnetic units and a body. Magnetic attractions in both radial and axial directions are enhanced.

Abstract: A method of detecting delamination of a composite component, the composite component having a plurality of plies and a plurality of z-pins extending through the composite component in a direction transverse to the plies. The method includes measuring one or more material properties of one or more of the z-pins. The measured material properties are compared to reference material properties. An estimation of whether delamination has occurred is performed based upon the comparison of the measured material properties and the reference material properties.

Abstract: Exemplary embodiments or implementations are disclosed of methods, apparatus, and systems for operating motors in variable speed situations. In an exemplary implementation, a method of controlling a variable-speed motor includes defining a control duration as a predetermined number of cycles of a multiple-phase power supply. Each speed in a range of speeds is defined by a corresponding number of the cycles of the control duration. Power is provided to the motor from the power supply at a selected one of the speeds, by enabling input from the power supply for the number of the cycles of the control duration corresponding to the selected speed.

Abstract: A switch driving circuit for driving a full-controlled power switch is disclosed, including a pulse-width modulation unit, a pulse transformer, an anti-interference module, a pulse-width demodulation unit and a driving-power amplifier. The pulse-width modulation unit converts a driving input signal into a positive-negative narrow pulse-width signal. The anti-interference module is coupled to the secondary side and the positive-negative narrow pulse-width signal includes multiple positive pulses and negative pulses. The anti-interference module filters out the ones from the positive pulses and negative pulses of which the pulse amplitude does not reach an effective threshold, and meanwhile the anti-interference module suppress a common-mode noise caused by a high voltage transient variation at a moment when the full-controlled power switch is turned on or off. The pulse-width demodulation unit converts the filtered positive-negative narrow pulse-width signal into a driving output signal.

Abstract: An active antenna (100, 200, 300) comprising a driving loop with first (103) and second (105) sections, each of which extends between end points. Each end point of each section (103, 105) is connected to the closest end point of the other section by a reflection amplifier (101, 106). One reflection amplifier (106) comprises differential ports for signals to/from the active antenna. The active antenna also comprises a passive loop with first (107) and second (108) sections, each of which extends between end points. Each end point of each section (107, 108) is connected to the closest end point of the other section by a reflection amplifier (102, 104). The driving loop and the passive loop extend in parallel to each other and the first and the second section (103, 105; 107, 108) of each of the loops form separated complementary parts of a closed geometrical shape and are built in open waveguide technology.

Abstract: An illumination system operable for use as a string of Christmas lights may include a plurality of lamps connected in series. Each lamp may include a lamp luminary, a lamp stem, a lamp holder, and a pair of cables connected to the lamp holder. The lamp stem may have an insertion portion. The lamp holder may have an accommodation space formed therein. When the lamp stem is disposed in the accommodation space, the insertion portion may be clamped between a pair of first protrusions to separate the protrusions. When the lamp stem is removed from the accommodation space, the pair of first protrusions may resume contact through the elastic nature of the cable and the protrusions. The illumination system may be simple in structure and may be convenient for use.

Abstract: A wearable electronic device includes a housing, an electronic module received in the housing, and a cover assembly. The cover assembly includes a cover and a rotating member. A first end of the rotating member is rotatably connected to the cover. A second end of the rotating member is detachably latched to the cover. When the rotating member is latched to the cover, the rotating member resists against the housing.

Abstract: An electronic device includes a housing, a buffer layer, a display, and a printed circuit board. The housing includes a main body with a front side having an outer peripheral edge and a first surface and a peripheral side extending from the outer peripheral edge of the front side. The front side and the peripheral side cooperate to form a receiving recess with the first surface of the front side facing the receiving recess. The buffering layer is positioned on a portion of the first surface. The display is received into the receiving recess. The printed circuit board is received into the receiving recess and coupled to the display. The buffering layer includes elastic material and conductive material. The buffering layer is positioned between the first surface and the display.

Abstract: A method, computer program product, and system for voice content transcription during collaboration sessions is described. A method may comprise receiving an indication to provide one or more real-time voice content-to-text content transcriptions to a first collaboration session participant. The one or more real-time voice content-to-text content transcriptions may correspond to voice content of a second collaboration session participant in one or more collaboration sessions including the first collaboration session participant and the second collaboration session participant.