Abstract: The present disclosure discloses a minimally invasive fracture reduction and fixation system, including a retractable fixing bracket, a reduction device and a fixing device, wherein the retractable fixing bracket includes a connecting member, and a first fixing member and a second fixing member, the reduction device includes at least two reduction regulators, internal fixing needles and limit sleeves, each reduction regulator includes an outer sleeve and an inner sleeve, the inner sleeve has a center hole matching the internal fixing needle at its center, and the fixing device includes at least two external fixing needles. The present disclosure can realize longitudinal displacement and transverse displacement of the first bone segment and the second bone segment of the fracture with reference to the anteroposterior direction, and can realize minimally invasive reduction of the first bone segment and the second bone segment of the fracture.

Abstract: A method and system for etching high aspect ratio structures in a semiconducting processing chamber are disclosed herein. In one example, a method of patterning a substrate comprises etching the substrate to form a recess, depositing a passivation layer on sidewalls of the recess, treating the passivation layer, and etching the recess to a second depth. The substrate etch forms a recess to a first depth, the substrate having a mask layer disposed thereon. The treating of the passivation layer is for removal of a clogging material formed from an etch byproduct on the mask layer. The etching the recess to a second depth while maintaining a minimum variation of a recess sidewall width.

Abstract: A method includes performing a dry etch process to remove a portion of a first layer disposed on a second layer of a stack of alternating layers. The first layer includes a first material and the second layer includes a second material different from the first material, and the dry etch process forms a passivation layer including a byproduct on surfaces of the second material. A amount of first material of the portion of the first layer remains after performing the dry etch process, The method further includes introducing a halide gas to enhance the passivation layer on the surfaces of the second material.

Abstract: In one embodiment, a rigid plate of a display for an information handling system includes: a main rigid portion having a first plate thickness; and a recessed rigid portion having a second plate thickness less than the first plate thickness, the recessed rigid portion including one or more interlock holes disposed proximate to an edge of the recessed rigid portion, the one or more interlock holes configured to couple the rigid plate to a display chassis of the display via an interlock portion.

Abstract: A composite carbon fiber laminate, including a first carbon fiber woven fabric layer, including one or more first voids defined between fabric strands of the first carbon fiber woven fabric layer; a second carbon fiber woven fabric layer, including one or more second voids defined between fabric strands of the second carbon fiber woven fabric layer; a core fabric layer; a first reflective layer positioned between the first carbon fiber woven fabric layer and the core fabric layer; and a second reflective fabric layer positioned between the second carbon fiber woven fabric layer and the core fabric layer, wherein the first reflective layer reflects light that is incident upon the first carbon fiber woven fabric layer at the one or more first voids.

Abstract: A switching circuit includes a live wire power obtaining circuit, a control circuit, and a tunable capacitor array. The live wire power obtaining circuit is coupled to a live wire to receive an alternating current (AC) voltage. The control circuit is configured to perform a zero-crossing detection to the alternating current voltage. The tunable capacitor array is coupled to the live wire power obtaining circuit and the control circuit. The control circuit is configured to control the live wire power obtaining circuit to supply power to the control circuit or the tunable capacitor array to discharge to supply power to the control circuit based on a state of a first switch and a zero-crossing detection result.

Abstract: A switching circuit includes a live wire power obtaining circuit, a control circuit, and a tunable capacitor array. The live wire power obtaining circuit is coupled to a live wire to receive an alternating current (AC) voltage. The control circuit is configured to perform a zero-crossing detection to the alternating current voltage. The tunable capacitor array is coupled to the live wire power obtaining circuit and the control circuit. The control circuit is configured to control the live wire power obtaining circuit to supply power to the control circuit or the tunable capacitor array to discharge to supply power to the control circuit based on a state of a first switch and a zero-crossing detection result.

Abstract: A driving device is configured to drive a power semiconductor switch module based on a main control signal. The driving device includes a voltage-modulating unit and a driving module. When the voltage-modulating unit receives a protection signal, the voltage-modulating unit generates a turn-off pulse signal based on the protection signal. Moreover, the driving module is configured to turn off the power semiconductor switch module based on the turn-off pulse signal. Also disclosed herein is a driving method.

Abstract: A short-circuit detecting device includes a coil and a processing circuit. The coil is configured to detect a variation of magnetic flux intensity generated by a current variation of a current flowing through a power semiconductor switch and to generate an induced electromotive force based on the variation of magnetic flux intensity. When the current variation rate of said current is greater than a predetermined value, the processing circuit is configured to generate a short-circuit signal based on the induced electromotive force so as to turn off the power semiconductor switch based on the short-circuit signal.

Abstract: Disclosed here is a novel use of a pharmaceutical composition comprising glutathione or its pharmaceutically acceptable salts or derivatives as active ingredient, in the forms of tablets, capsules, powder, spray and/or liquid, through oral administration, intervene injection, inhale and/or skin transmission, to treat and prevent gout and lead nephropathy. Embodiments of gout and lead nephropathy treatable by the pharmaceutical composition described herein include, without limitation, gout, kidney stones, tophi, hyperuricemia, blood lead, renal disease (lead nephropathy), complications thereof, as well as other conditions caused by lifestyle, genetics, medical conditions, and blood lead level. Symptoms treatable may include inflammatory arthritis, which typically involves a red, tender, hot, and swollen joint.

Abstract: A three-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 diode unit and a second diode unit that are in series connection, and a first power semiconductor switch unit. The lower-half bridge arm circuit module includes a third diode unit and a fourth diode unit that are in series connection, and a second power semiconductor switch unit. These first and second power semiconductor switch units are connected to the neutral point of the capacitor unit; the second diode unit and the third diode unit are connected to the alternating-current terminal; the first diode unit and the fourth diode unit are respectively connected to the positive terminal and negative terminal of the direct-current bus. The two circuit modules are disposed side by side and facing each other.

Abstract: The disclosure provides a power converter including a cabinet, a first converter circuit module, a second converter circuit module, and a DC capacitor module. The first converter circuit module includes at least one first bridge arm. The second converter circuit module includes at least one second bridge arm. The first converter circuit module, the second converter circuit module, and the DC capacitor module are disposed in the cabinet. The second bridge arm and the first bridge arm are arranged side by side in parallel. The DC capacitor module is electrically connected between the first bridge arm and the second bridge arm, so that the first bridge arm and the second bridge arm share the DC capacitor module.

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 driving device is configured to drive a power semiconductor switch module based on a main control signal. The driving device includes a voltage-modulating unit and a driving module. When the voltage-modulating unit receives a protection signal, the voltage-modulating unit generates a turn-off pulse signal based on the protection signal. Moreover, the driving module is configured to turn off the power semiconductor switch module based on the turn-off pulse signal. Also disclosed herein is a driving method.

Abstract: A short-circuit detecting device includes a coil and a processing circuit. The coil is configured to detect a variation of magnetic flux intensity generated by a current variation of a current flowing through a power semiconductor switch and to generate an induced electromotive force based on the variation of magnetic flux intensity. When the current variation rate of said current is greater than a predetermined value, the processing circuit is configured to generate a short-circuit signal based on the induced electromotive force so as to turn off the power semiconductor switch based on the short-circuit signal.

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 three-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 diode unit and a second diode unit that are in series connection, and a first power semiconductor switch unit. The lower-half bridge arm circuit module includes a third diode unit and a fourth diode unit that are in series connection, and a second power semiconductor switch unit. These first and second power semiconductor switch units are connected to the neutral point of the capacitor unit; the second diode unit and the third diode unit are connected to the alternating-current terminal; the first diode unit and the fourth diode unit are respectively connected to the positive terminal and negative terminal of the direct-current bus. The two circuit modules are disposed side by side and facing each other.

Abstract: The disclosure provides a power converter including a cabinet, a first converter circuit module, a second converter circuit module, and a DC capacitor module. The first converter circuit module includes at least one first bridge arm. The second converter circuit module includes at least one second bridge arm. The first converter circuit module, the second converter circuit module, and the DC capacitor module are disposed in the cabinet. The second bridge arm and the first bridge arm are arranged side by side in parallel. The DC capacitor module is electrically connected between the first bridge arm and the second bridge arm, so that the first bridge arm and the second bridge arm share the DC capacitor module.

Abstract: The present invention provides a method of modulating calcineurin activity in a cell by contacting the cell with at least one ApoE analog. Methods of treating various disorders associated with calcineurin activity using one or more ApoE analogs are also disclosed. In particular, the present invention provides a method of reducing demyelination and promoting remyelination in a subject. Methods of treating spinal cord or nerve injury in a subject are also described.

Abstract: An electrical connector has a receiving space (10) and includes an insulative housing (1) and a set of contacts. The insulative housing includes a tongue portion (12) protruding into the receiving space. The tongue portion has a mating face (14), a set of depressions (141) formed in a front region of the mating face, and a set of passageways (142) defined in a rear region of the mating face and being spaced away from the depressions. The contacts are held in the tongue portion and include a set of first and second contacts (21,22). The first contacts have elastic first contact portions (15) being movably received in the passageways and protruding beyond the mating face and into the receiving space, and first tail portions (16) opposite to the first contact portions. The second contacts have stiff second contact portions (25) retained in the depressions and exposed to the receiving space, and second tail portions (28) opposite to the second contact portions.