Abstract: A head-mounted viewable device includes a display configured to display and project a virtual scene image to a user's eye, a VR optical lens configured to construct an optical path between the display and the user's eye for allowing a virtual scene image being observed by the user's eye, and an eye-tracking system configured to detect a sight direction of the user's eye and adjust a display position of the virtual scene image based on the detected sight direction. The eye-tracking system includes at least one light source configured to project the detection light and a receiving module configured to receive the reflected detection light reflected to determine the sight direction of the user's eye. The receiving module is positioned at a side of the VR optical lens and arranged to face towards the user's eye such that the detection light reflected by the user's eye is directly received by the receiving module.

Abstract: A bed includes a mattress; a heating member coupled to the mattress and configured to operably generate heat for the mattress; a temperature detector disposed on the mattress for detecting temperature of the mattress; and a controller coupled with the heating member and the temperature detector and configured to receive and process signals of the temperature detected from the temperature detector and control operations of the heating member based on the temperature signals.

Abstract: A device for extending the life of a battery, including an electrode having a metal portion, wherein the metal portion is selected from the group including lithium, calcium, magnesium, sodium, potassium and combinations thereof, an electrolyte permeable membrane, and a metal dendrite seeding material disposed between the electrode and the membrane. The electrode, the membrane and the metal dendrite seeding material are positioned in an electrolyte matrix. At least one dendrite extends from the electrode toward the electrolyte permeable membrane combines with at least one dendrite extending from the dendrite seeding material.

Abstract: Provided in this disclosure are methods for the synthesis of substituted 2-arylcyclopropylamines and 2-heteroarylcyclopropylamines and related compounds. Also provided are methods for reduction of thioesters to aldehydes, and methods for reductive animation of cyclopropylamines.

Abstract: A catalyst comprising a functionalized substrate having a first charged functional group, a metal dispersed on the substrate, wherein the metal comprises at least one of Pt, Rh, Pd, Ag, Au, Ni, Os, Ir, Mn, Co, alloys thereof, oxides thereof, or mixtures thereof, and an ionomer are disclosed. Methods manufacturing a functionalized catalyst comprising catalyzing a substrate with a metal, functionalizing the catalyzed substrate with a first charged functional group, and add an ionomer to the loaded functionalized catalyst are also disclosed. Also, methods comprising catalyzing a substrate with a metal, functionalizing the substrate with a first charged functional group, and adding an ionomer to the loaded functionalized catalyst are disclosed.

Abstract: A bed leg for connecting to a bed frame includes one or more leg sections. Each of the one or more leg sections includes a central column having a first end, an opposite, second end, and a connecting bolt attached to the first end; and a decorative shell configured to detachably sleeve on the central column.

Abstract: An adjustable bed system includes a pair of side rails transversely spaced, longitudinally aligned and arranged parallel to each other; and a pair of lifting assemblies attached respectively to the pair of side rails for operably adjusting positions of at least one part of a bed. Each lifting assembly comprises a back lifting arm and a leg lifting mechanism; a bracket; and a back lifting actuator and a leg lifting actuator received in the bracket. Each actuator includes an activation member and a motor member engaged with the activation member for driving the activation member. The activation member of the back lifting actuator is engaged with the back lifting arm for operably adjusting the back lifting arm at desired back positions. The activation member of the leg lifting actuator is engaged to the leg lifting mechanism for operably adjusting the leg lifting mechanism at desired leg positions.

Abstract: An improved nanocomposite cathode material for lithium-ion batteries and method of making the same. The nanocomposite cathode material includes lithium iron silicate based nanoparticles with a conductive matrix of graphene sheets. The nanoparticles may be doped with at least one anion or cation.

Abstract: An adjustable bed includes: a head frame and a foot frame; a head lifting assembly including a head lifting bracket pivotally connected to the head frame, and a head lifting actuator pivotally connected between the head lifting bracket and the head frame for operably driving the head lifting bracket to pivotally move in an upward rotating direction or a downward rotating direction; a foot lifting assembly including a foot lifting bracket pivotally connected to the foot frame, and a foot lifting actuator pivotally connected between the foot lifting bracket and the foot frame for operably driving the foot lifting bracket to pivotally move in an upward rotating direction or a downward rotating direction; and a folding mechanism connecting the head frame and the foot frame such that the head frame and the foot frame are pivotably foldable to one another at the folding mechanism.

Abstract: A bed with a vibroacoustic therapy system that combines the relaxation power of body sonic energy massage, soothing low-frequency sound waves, and the healing power of users' favorite music to deliver the ultimate in stress reduction, pain relief, increases of circulation and mobility for the users. The bed includes a frame structure; a plurality of platforms disposed on the frame structure; and one or more massage devices spatial-separately installed on the plurality of platforms. The one or more massage devices comprises sonic vibrators or music based vibrators. The one or more massage devices are operable individually or cooperatively with a remote control, and/or a smart mobile device.

Abstract: A coal-fired power generation system and a supercritical CO2 cycle system thereof are provided. The supercritical CO2 cycle system includes a compressor unit and a turbine unit. The turbine unit includes a preceding stage heater, a preceding stage turbine, a last stage heater and a last stage turbine successively connected in series. An exhaust port of at least one of compressors in the compressor unit is in communication with the turbine unit through a split flow pipe, and a communication position between the split flow pipe and the turbine unit is located downstream of a suction port of the preceding stage turbine. An auxiliary regenerator and an auxiliary heater are provided at the split flow pipe, and the auxiliary regenerator is located upstream of the auxiliary heater.

Abstract: An electrode material for an electrochemical cell comprising a plurality of stacked vanadium pentoxide ribbons defining a substrate, a plurality of graphene oxide sheets infiltrating the substrate to define an electrode material, and a plurality of water molecules present between adjacent vanadium oxide ribbons. Each respective graphene oxide sheet is positioned between two adjacent vanadium pentoxide ribbons. The electrode material is about 2 weight percent graphene oxide. Water molecules are present in a ratio of at least about 0.3 water molecules per V2O5.

Abstract: A foldable bed includes a bed frame structure having a back frame and a leg frame connecting to the back frame such that the back frame and the leg frame are pivotally foldable relative to one another along a length direction of the foldable bed; and a plurality of boards detachably attached onto the bed frame structure along the length direction of the foldable bed, wherein each board comprises a pair of panels arranged along a width direction of the foldable bed.

Abstract: A driving mechanism and an adjustable bed have the same. The driving mechanism includes a housing; a driving assembly being placed in the housing and comprising at least one driving member and at least one driving block connected to the at least one driving member; and at least one transmission structure configured to connect to a lifting mechanism of the adjustable bed. The at least one transmission structure is pivotally connected to the housing and the at least one driving block, such that when the at least one driving member drives the at least one driving block to move linearly, the movement of the at least one driving block causes the at least one transmission structure to rotate.

Abstract: An improved nanocomposite cathode material for lithium-ion batteries comprising vanadium pentoxide substrates with a conductive matrix of graphene sheets and a network former such as silicon dioxide and a method of making the same.

Abstract: An adjustable bed system includes first and second frames; a back lifting assembly having a back lifting bracket pivotally connected to the first frame and a back lifting actuator pivotally connected between the back lifting bracket and the first frame for operably driving the back lifting bracket to pivotally move in an upward or downward rotating direction relative to the first frame; a leg lifting assembly having a leg lifting bracket pivotally connected to the second frame structure and a leg lifting actuator pivotally connected between the leg lifting bracket and the second frame for operably driving the leg lifting bracket to pivotally move in an upward or downward rotating direction relative to the second frame; and a foldable connection mechanism connecting the first and second frames such that the first and second frames are pivotally foldable relative to one another at the connection mechanism.

Abstract: The present disclosure relates to compositions and methods for producing stereoisomerically pure aminocyclopropanes.

Abstract: The lumbar support mechanism and an adjustable bed having the same. The lumbar support mechanism includes first and second lumbar lifting assemblies. Each lumbar lifting assembly has a fixing bracket, a first support leg, a second support leg, a bearing member, and a lifting support bracket. The first support leg is pivotally connected between the bearing member and the lifting support bracket. The second support leg is pivotally connected between the fixing bracket and the first support leg. A lumbar support member is connected to the lifting support brackets of the first and second lumbar lifting assemblies. A linkage member is pivotally connected to the bearing members of the first and second lumbar lifting assemblies such that the lumbar support member is operably movable between a retracted position and an ejected position when the linkage member moves between first and second positions.

Abstract: The knockdownable bed includes a frame having a pair of side frame rails transversely spaced, longitudinally aligned and arranged parallel to each other; and at least one connection bar detachably mounted onto the pair of side frame rails; and a plurality of slats longitudinally spaced, transversely aligned on the frame. Each of the pair of side frame rails is foldable.

Abstract: The resent disclosure provides a treadmill, including a chassis, stand columns mounted at both sides of the chassis, a deck rotatably mounted on the chassis and configured to rotate relative to the chassis to a longitudinal direction or a horizontal direction, a handrail assembly rotatably mounted on the stand columns and configured to rotate relative to the stand columns to a folded state or an unfolded state, and a controller configured to control rotation of the deck and the handrail assembly. The controller is configured to control the deck to rotate to the longitudinal direction when the controller controls the handrail assembly to rotate relative to the stand columns to be in the folded state, and control the handrail assembly to rotate relative to the stand columns to be in the unfolded state when the controller controls the deck to rotate from the longitudinal direction to the horizontal direction.