USA As Represented by Secretary of the Navy

Emory University

Other

Jonathan L Shaw

Henry F Gray

Jeremy Hanna

David S Y Hsu

Luka Grujic

Kenneth R Mautner

Shawna M Hagen

Brett Rogers

Francis J Kub

Karl D Hobart

Mark E Twigg

Phillip E Thompson

Kevin Jensen

Michael L Wach

John Bradley Boos

Louis F Malice, Jr

W Robert Taylor

Bradford B Pate

Doewon Park

James G Champlain

Colleen Kraft

Byoung-don Kong

Joan E Yater

Systems and methods are configured to treat a tissue by automatically linearly oscillating an instrument into a target site. A system may include a body having a length and configured to receive a portion of the instrument guide member having an exposed end and/or an instrument. The system may further include an actuator member disposed within the body and configured to linearly oscillate the instrument within the instrument guide member a fixed distance past the exposed end. The systems and methods can increase patient comfort while empowering clinicians by simplifying interventions for musculoskeletal disorders.

Systems and methods for tissue treatment

A thin diamond film bonded to a diamond substrate made by the process of heating a diamond substrate inside a vacuum chamber to about 500&#xb0; C., cooling the diamond substrate, coating a first surface of the diamond substrate with chromium, depositing an initial layer of palladium, heating the diamond substrate, allowing the chromium and the diamond substrate to form a chemical bond, inter-diffusing the adhesion layer of chromium and the initial layer of palladium, cooling, depositing palladium, placing a shadow mask, degassing the vacuum, depositing a tin layer, assembling the tin layer, heating the tin layer, melting the tin layer, and bonding the thin diamond film to the diamond substrate. A thin diamond film bonded to a diamond substrate comprising a thin diamond film, a layer of chromium, palladium, tin, and a diamond substrate.

Thin diamond film bonding providing low vapor pressure at high temperature

A device having: a substrate having a dielectric surface; a gate electrode; a drain electrode; a source electrode having a conductive contact and a two-dimensional material edge; and a dielectric material between the source and the gate. The source is adjacent to the gate. The drain electrode is not laterally between the edge and the gate electrode, and the distance from the drain electrode to the edge is greater than the distance from the gate electrode to the edge. The edge does not contact any other component of the device. The gate, drain, and source are not in electrical contact with each other. There is a line of sight or electron path from the edge to the drain electrode.

Vacuum transistor structure using graphene edge field emitter and screen electrode

Systems, devices and methods are configured to prepare a specimen. A system may include a preparation device configured to mate with a specimen collection device. The preparation device may include an agitator member and a filter member. The filter member and the agitator member may be configured to move independently with respect to each other and the preparation platform member. The filter member may be configured to move linearly with respect to the preparation platform member and/or the agitator member, and the agitator member may be configured to move linearly and radially with respect to the preparation platform member and/or the agitator member. The system may also include a specimen collection device. The specimen may include but is not limited to fecal matter.

Systems, devices, and methods for specimen preparation

Bonding method for thin film diamond providing low vapor pressure at high temperature

A method of producing electrons via photoemission comprising providing diamond doped p-type with boron, treating a surface of the diamond by exposing it to atomic hydrogen inside an ultrahigh vacuum chamber, illuminating the surface with photons, and extracting the photoemitted electrons. A chemically stable visible light photoemission electron source comprising a diamond film having a surface terminated with hydrogen and a light source.

Chemically stable visible light photoemission electron source

This disclosure concerns bonding a thin film of diamond to a second thick diamond substrate in a way that does not cause the exposed (un-bonded) diamond surface to become contaminated by the bonding process or when the bonded diamond is held at high temperature for many hours in vacuum.

A method of making an integrally gated carbon nanotube field ionization device comprising forming a first insulator layer on a first side of a substrate, depositing a conductive gate layer on the first insulator layer, forming a cavity in the substrate by etching a second side of the substrate to near the first insulator layer, wherein the second side is opposite the first side and wherein a portion of the first insulator is over the cavity, etching an aperture in the portion of the first insulator layer and the conductive gate layer to form an aperture sidewall, depositing a second insulator layer removing the second insulator layer from the top surface, depositing a metallization layer over the second insulator layer, depositing a catalyst layer on the metallization layer and growing a carbon nanotube from the catalyst layer.

Method of making an integrally gated carbon nanotube field ionizer device

Described herein is a field ionization and electron impact ionization device consisting of carbon nanotubes with microfabricated integral gates that is capable of producing short pulses of ions.

Integrally gated carbon nanotube ionizer device

An apparatus and method for regulating the emission current from a single (macroscopic) field emitter, from groups of emitters within a large (microscopic) array, or from each cell within an array is described. The apparatus includes an additional aperture, fabricated at each field emitter array cell, to create and electron energy filter. The filter aperture of the electron energy filter is similar to the gate aperture but located above or in front of the gate aperture, and is held at a positive potential lower than the gate. The filter allows only those electrons with energy greater than some minimum (the cutoff energy) to pass through. A current-limiting circuit is placed in series with the gate aperture, limiting the total current of electrons that do not pass through the filter. Thus, emission from low energy states is limited without limiting emission from states near the Fermi level.

Method and apparatus for regulating electron emission in field emitter devices

An electron emitting device characterized by a monocrystalline substrate, a plurality of monocrystalline nanomesas or pillars disposed on the substrate in a spaced relationship and extending generally normally therefrom, monocrystalline self-assembled tips disposed on top of the nanomesas, and essentially atomically sharp apexes on the tips for field emitting electrons. A method for making the emitters is characterized by forming a gate electrode and gate electrode apertures before forming the tips on the nanomesas.

Automatically sharp field emission cathodes

An electron emitting device characterized by a monocrystalline substrate, a plurality of monocrystalline nanomesas or pillars disposed on the subste in a spaced relationship and extending generally normally therefrom, monocrystalline self-assembled tips disposed on top of the nanomesas, and essentially atomically sharp apexes on the tips for field emitting electrons. A method for making the emitters is characterized by forming a gate electrode and gate electrode apertures before forming the tips on the nanomesas.

Atomically sharp field emission cathodes

A field emitter is disclosed comprising a graded electron affinity surface ayer. The graded electron affinity layer provides for increased transconductance, reduced energy distribution of emitted electrons, reduced noise and increased uniformity in its operation.

Growing community of inventors

Springfield, VA, United States of America

Jonathan L Shaw