Abstract: An electronic device comprising lower and upper decks adjacent to a source. The lower and upper decks comprise tiers of alternating conductive materials and dielectric materials. Memory pillars in the lower and upper decks are configured to be operably coupled to the source. The memory pillars comprise contact plugs in the upper deck, cell films in the lower and upper decks, and fill materials in the lower and upper decks. The cell films in the upper deck are adjacent to the contact plugs and the fill materials in the upper deck are adjacent to the contact plugs. Dummy pillars are in a central region of the lower deck and the upper deck. The dummy pillars comprise an oxide material in the upper deck, the oxide material contacting the contact plugs and the fill materials. Additional electronic devices and related systems and methods are also disclosed.

Abstract: An electronic device comprising lower and upper decks adjacent to a source. The lower and upper decks comprise tiers of alternating conductive materials and dielectric materials. Memory pillars in the lower and upper decks are configured to be operably coupled to the source. The memory pillars comprise contact plugs in the upper deck, cell films in the lower and upper decks, and fill materials in the lower and upper decks. The cell films in the upper deck are adjacent to the contact plugs and the fill materials in the upper deck are adjacent to the contact plugs. Dummy pillars are in a central region of the lower deck and the upper deck. The dummy pillars comprise an oxide material in the upper deck, the oxide material contacting the contact plugs and the fill materials. Additional electronic devices and related systems and methods are also disclosed.

Abstract: A portable message device includes a base having at least one wheel providing portability for the portable message device, and a base access panel which in an open position provides access to an internal base cavity. A communication feature includes a message portion providing a predetermined message saved in a memory. A sensor provides indication of the proximity of a person to the portable message device. A processor is connected to the sensor and the memory. The processor actuates the communication feature upon sensing the proximity of the person. A power source positioned substantially within the internal base cavity provides electrical power to operate the communication feature and the sensor, the power source being accessible by opening the base access panel.

Abstract: A sign mounting adapter system includes a hitch extension tube. A sign orientation post connected and oriented perpendicular to the hitch extension tube has a longitudinal axis. A sign support post is axially and rotatably received on the sign orientation post. The sign support post has a longitudinal axis co-axially aligned with the sign orientation post longitudinal axis, and a receiving bore perpendicular to the sign support post longitudinal axis. Multiple orientation bores extend through the sign orientation post, each oriented at a first angle to proximate orientation bores and perpendicular to the orientation post longitudinal axis. A retention assembly is releasably and co-axially received in the receiving bore and one of the orientation bores. The retention assembly releasably connects the sign support post to the sign orientation post to permit selection of a sign support post axial angle of rotation to the sign orientation post.

Abstract: A railway service vehicle for transporting material into or wheelchair-bound or injured persons away from train accident sites or tunnels includes a body having a platform. Wheels rotatably connected to the body support the body on first and second rails of a railroad track system for non-self propelled movement of the body. At least one mounting device is connected to the platform. A hold-down member releasably connected to the mounting device restrains a wheelchair supported by the platform. A storage/tool container is supported by the platform. At least one passenger seat is connected to the storage/tool container. Opposed first and second containment members are connected to the platform outboard of the mounting device.

Abstract: A sign mounting adapter system includes a hitch extension tube. A sign orientation post connected and oriented perpendicular to the hitch extension tube has a longitudinal axis. A sign support post is axially and rotatably received on the sign orientation post. The sign support post has a longitudinal axis co-axially aligned with the sign orientation post longitudinal axis, and a receiving bore perpendicular to the sign support post longitudinal axis. Multiple orientation bores extend through the sign orientation post, each oriented at a first angle to proximate orientation bores and perpendicular to the orientation post longitudinal axis. A retention assembly is releasably and co-axially received in the receiving bore and one of the orientation bores. The retention assembly releasably connects the sign support post to the sign orientation post to permit selection of a sign support post axial angle of rotation to the sign orientation post.

Abstract: A collapsible and deployable sign system includes a support tube and a sliding member longitudinally slidable on the support tube. A handle is rotatably connected to the support tube and rotatably linked to the sliding member such that rotation of the handle slidably displaces the sliding member with respect to the support tube. A bracket assembly is fixed to the support tube. At least one scissoring assembly including first and second scissoring links is rotatably connected together by a rotational fastener. The first scissoring link is rotatably connected to the bracket assembly and separately to a corner brace member. The second scissoring link is rotatably connected to the sliding member and separately to the corner brace member. Handle rotation moves the sliding member toward the bracket assembly moving the corner brace member from a stowed condition proximate the support tube away from the support tube to a deployed condition.

Abstract: A warning flag deployment system includes a mount having a closed bracket having a contact wall. A rod positioning member has a stowed retention wall and a deployed retention wall angularly oriented to the stowed retention wall. An open bracket has an open bracket leg and a standoff leg spacing the open bracket leg from a surface of the mount defining plane. A flag support rod is connected to the mount and is rotatable between a stowed condition and a deployed condition. The stowed condition has the flag support rod positioned between the contact wall and the stowed retention wall of the rod positioning member. The deployed condition has the flag support rod positioned between the rod positioning member deployed retention wall and the standoff leg and at least partially in a cavity defined between the plane and the open bracket leg.

Abstract: A railway service vehicle for transporting material into or wheelchair-bound or injured persons away from train accident sites or tunnels includes a body having a platform. Wheels rotatably connected to the body support the body on first and second rails of a railroad track system for non-self propelled movement of the body. At least one mounting device is connected to the platform. A hold-down member releasably connected to the mounting device restrains a wheelchair supported by the platform. A storage/tool container is supported by the platform. At least one passenger seat is connected to the storage/tool container. Opposed first and second containment members are connected to the platform outboard of the mounting device.

Abstract: A system for mounting a sign to a vehicle includes a bar connected to the vehicle. A clamp assembly includes first and second jaw members adapted to frictionally engage the bar between the first and second jaw members. At least one structural member supports the first and second jaw members. A sign assembly includes a support frame having the at least one structural member connected to the support frame. A frame member is slidably received by and releasably engaged to the support frame. A sign connected to the frame member is adapted to be positioned in each of a stowed and a deployed position.