Abstract: A prone head support includes a cushion to support a face of a patient in a prone position. The cushion has a cutout to accommodate the patient's eyes, nose, and mouth. A shell cradles the cushion and has downwardly extending bosses. The shell has an opening beneath the cutout. A tray includes a base panel and upstanding posts molded integrally with the base panel. A knob is threaded onto each upstanding post and each knob is rotatable relative to the upstanding post to move upwardly and downwardly along the respective upstanding post. The bosses of the shell rest on the knobs such that the shell is able to be freely lifted upwardly off of the knobs regardless of the position of the knobs along the respective upstanding posts.

Abstract: A surgical patient support includes a foundation frame and a support top. The foundation frame includes a first column and a second column. The support top is coupled to the first column and the second column and is height adjustable relative to the foundation frame.

Abstract: A person support apparatus includes a base frame, a longitudinal frame coupled to the base frame and extending in a longitudinal direction, and a hip/thigh support assembly. The hip/thigh support assembly is slidably positioned along the longitudinal frame. The hip/thigh support assembly includes a hip support base, a thigh support base, a hip/thigh support exterior plate including a hip support exterior plate portion oriented at an acute angle relative to a lateral axis of the longitudinal frame, and a thigh support exterior plate portion extending from the hip support exterior plate portion at an obtuse angle and oriented at an acute angle relative to the lateral axis of the longitudinal frame and a longitudinal axis of the longitudinal frame, and a hip/thigh support pad removably attached to the hip/thigh support exterior plate.

Abstract: An armboard assembly includes an armboard deck including a cavity formed in a lower surface of the armboard deck, an armboard mount including a plurality of radially extending teeth positioned within a mount portion of the cavity, and an engagement assembly movable relative to the armboard deck between an engaged position to engage the plurality of teeth of the armboard mount and a disengaged position to disengage the plurality of teeth of the armboard mount. The engagement assembly includes a handle including one or more legs extending from an upper surface of the handle, which engage an insertion hole formed in the armboard deck and a channel extending from the insertion hole toward the armboard mount, and an indexing member positioned within the cavity of the armboard deck and coupled to the handle. The indexing member limits movement of the engagement assembly by maintaining the legs within the channel.

Abstract: An armboard assembly includes an armboard deck including a cavity formed in a lower surface of the armboard deck, an armboard mount including a plurality of radially extending teeth positioned within a mount portion of the cavity, and an engagement assembly movable relative to the armboard deck between an engaged position to engage the plurality of teeth of the armboard mount and a disengaged position to disengage the plurality of teeth of the armboard mount. The engagement assembly includes a handle including one or more legs extending from an upper surface of the handle, which engage an insertion hole formed in the armboard deck and a channel extending from the insertion hole toward the armboard mount, and an indexing member positioned within the cavity of the armboard deck and coupled to the handle. The indexing member limits movement of the engagement assembly by maintaining the legs within the channel.

Abstract: A tunable QCL source that utilizes a full bandwidth of a broadband THz QCL, and produces a significantly large number of frequency channels, is provided. The tunable QCL source includes a grating router configured to receive a terahertz frequency from a tunable quantum cascade laser and generate a plurality of terahertz frequencies. The tunable QCL source also includes a waveguide controller configured to receive the plurality of terahertz frequencies from the grating router, and select a desired terahertz frequency from the plurality of terahertz frequencies to be outputted by a waveguide multiplexer.

Abstract: A method for fabricating a radiation-cured structure is provided. The method includes the steps of providing a first radiation-sensitive material and a second radiation-sensitive material adjacent the first radiation-sensitive material. The first radiation-sensitive material has a first sensitivity. The second radiation-sensitive material has the first sensitivity and a second sensitivity different from the first sensitivity. At least one mask is placed between at least one radiation source and the first and second radiation-sensitive materials. The mask has a plurality of substantially radiation-transparent apertures. The first and second radiation-sensitive materials are then exposed to a plurality of radiation beams through the radiation-transparent apertures in the mask to form a first construct in the first radiation-sensitive material and a second construct in the second radiation-sensitive material. The first construct and the second construct cooperate to form the radiation-cured structure.

Abstract: A fuel cell component includes a first fluid distribution layer, a second fluid distribution layer, a cap layer, a third fluid distribution layer, and a pair of fluid diffusion medium layers. The individual layers are polymeric, mechanically integrated, and formed from a radiation-sensitive material. The first fluid distribution layer, the second fluid distribution layer, the cap layer, the third fluid distribution layer, and the pair of fluid diffusion medium layers are coated with an electrically conductive material. A pair of the fuel cell components may be arranged in a stack with a membrane electrode assembly therebetween to form a fuel cell.

Abstract: A technique for sensing a moving object within a physical environment using a MIMO communication link includes generating a channel matrix based upon channel state information of the MIMO communication link. The physical environment operates as a communication medium through which communication signals of the MIMO communication link propagate between a transmitter and a receiver. A spatial information variable is generated for the MIMO communication link based on the channel matrix. The spatial information variable includes spatial information about the moving object within the physical environment. A signature for the moving object is generated based on values of the spatial information variable accumulated over time. The moving object is identified based upon the signature.

Abstract: A technique for sensing a moving object within a physical environment using a MIMO communication link includes generating a channel matrix based upon channel state information of the MIMO communication link. The physical environment operates as a communication medium through which communication signals of the MIMO communication link propagate between a transmitter and a receiver. A spatial information variable is generated for the MIMO communication link based on the channel matrix. The spatial information variable includes spatial information about the moving object within the physical environment. A signature for the moving object is generated based on values of the spatial information variable accumulated over time. The moving object is identified based upon the signature.

Abstract: A method of manufacturing a load cell assembly and methods of folding a circuit device are disclosed. A flexible circuit body including a strip having at least one hinge is provided, with the strip being in a first position or an unfolded position. A plurality of strain gauges are attached to the strip, with the hinge disposed between the strain gauges. A jig is provided and the strip of the flexible circuit body is folded along the hinge utilizing the jig to define a second position or folded position of the strip.

Abstract: A fuel cell component includes a first fluid distribution layer, a second fluid distribution layer, a cap layer, a third fluid distribution layer, and a pair of fluid diffusion medium layers. The individual layers are polymeric, mechanically integrated, and formed from a radiation-sensitive material. The first fluid distribution layer, the second fluid distribution layer, the cap layer, the third fluid distribution layer, and the pair of fluid diffusion medium layers are coated with an electrically conductive material. A pair of the fuel cell components may be arranged in a stack with a membrane electrode assembly therebetween to form a fuel cell.

Abstract: A fuel cell component includes a first fluid distribution layer, a second fluid distribution layer, a cap layer, a third fluid distribution layer, and a pair of fluid diffusion medium layers. The individual layers are polymeric, mechanically integrated, and formed from a radiation-sensitive material. The first fluid distribution layer, the second fluid distribution layer, the cap layer, the third fluid distribution layer, and the pair of fluid diffusion medium layers are coated with an electrically conductive material. A pair of the fuel cell components may be arranged in a stack with a membrane electrode assembly therebetween to form a fuel cell.

Abstract: A method of manufacturing a load cell assembly and methods of folding a circuit device are disclosed. A flexible circuit body including a strip having at least one hinge is provided, with the strip being in a first position or an unfolded position. A plurality of strain gauges are attached to the strip, with the hinge disposed between the strain gauges. A jig is provided and the strip of the flexible circuit body is folded along the hinge utilizing the jig to define a second position or folded position of the strip.

Abstract: A fuel cell component includes a first fluid distribution layer, a second fluid distribution layer, a cap layer, a third fluid distribution layer, and a pair of fluid diffusion medium layers. The individual layers are polymeric, mechanically integrated, and formed from a radiation-sensitive material. The first fluid distribution layer, the second fluid distribution layer, the cap layer, the third fluid distribution layer, and the pair of fluid diffusion medium layers are coated with an electrically conductive material. A pair of the fuel cell components may be arranged in a stack with a membrane electrode assembly therebetween to form a fuel cell.

Abstract: A method for establishing a detection map of a dynamically configurable sensor network. This method determines an appropriate set of locations for a plurality of sensor units of a sensor network and establishes a detection map for the network of sensors while the network is being set up; the detection map includes the effects of the local terrain and individual sensor performance. Sensor performance is characterized during the placement of the sensor units, which enables dynamic adjustment or reconfiguration of the placement of individual elements of the sensor network during network set-up to accommodate variations in local terrain and individual sensor performance. The reconfiguration of the network during initial set-up to accommodate deviations from idealized individual sensor detection zones improves the effectiveness of the sensor network in detecting activities at a detection perimeter and can provide the desired sensor coverage of an area while minimizing unintentional gaps in coverage.

Abstract: A method for fabricating a radiation-cured structure is provided. The method includes the steps of providing a first radiation-sensitive material and a second radiation-sensitive material adjacent the first radiation-sensitive material. The first radiation-sensitive material has a first sensitivity. The second radiation-sensitive material has the first sensitivity and a second sensitivity different from the first sensitivity. At least one mask is placed between at least one radiation source and the first and second radiation-sensitive materials. The mask has a plurality of substantially radiation-transparent apertures. The first and second radiation-sensitive materials are then exposed to a plurality of radiation beams through the radiation-transparent apertures in the mask to form a first construct in the first radiation-sensitive material and a second construct in the second radiation-sensitive material. The first construct and the second construct cooperate to form the radiation-cured structure.

Abstract: A system and a method are described for forming features at the bottom of a cavity in a substrate. Embodiments of the systems and methods provide an infrared transmitting, hermetic lid for a microdevice. The lid may be manufactured by first forming small, subwavelength features on a surface of an infrared transmitting substrate, and coating the subwavelength features with an etch stop material. A spacer wafer is then bonded to the infrared transmitting substrate, and a device cavity is etched into the spacer wafer down to the etch stop material, exposing the subwavelength features. The etch stop material may then be removed, and the microdevice enclosed in the device cavity, by bonding the device wafer to the lid.

Abstract: A system and a method are described for forming features at the bottom of a cavity in a substrate. Embodiments of the systems and methods provide an infrared transmitting, hermetic lid for a microdevice. The lid may be manufactured by first forming small, subwavelength features on a surface of an infrared transmitting substrate, and coating the subwavelength features with an etch stop material. A spacer wafer is then bonded to the infrared transmitting substrate, and a device cavity is etched into the spacer wafer down to the etch stop material, exposing the subwavelength features. The etch stop material may then be removed, and the microdevice enclosed in the device cavity, by bonding the device wafer to the lid.