Other

University System of Maryland

Washington University

George Mason University

Government of the United States of America, As Represented by the Secretary of Commerce

The United States of America As Represented by the Secretary of

Albert Davydov

Northrop Grumman Systems Corporation

Purdue Research Foundation

George Mason Intellectual Properties, Inc.

Nist

Albert V Davydov

Abhishek Motayed

Peter Usov

Mona Zaghloul

Vladimir P Oleshko

Geetha Aluri

Mulpuri V Rao

Ritu Bajpai

Sergiy Krylyuk

Feng Zhang

Joerg Appenzeller

Matthew Russell King

Leonid A Bendersky

Yonglai Tian

Guannan Liu

Ratan Debnath

Brian Thomson

Yuqi Zhu

Ting Xie

Baomei Wen

Jong-Yoon Ha

Rao V Mulpuri

Siddharth G Sundaresan

Huairuo Zhang

A nanostructure sensing device comprises a semiconductor nanostructure having an outer surface, and at least one of metal or metal-oxide nanoparticle clusters functionalizing the outer surface of the nanostructure and forming a photoconductive nanostructure/nanocluster hybrid sensor enabling light-assisted sensing of a target analyte.

Device having a array of sensors on a single chip

A method of switching a phase-change device (Device), including changing phase of the Device from a semiconducting 2H phase to a new 2Hphase with a higher conductivity, the Device having an active material with a thickness including a phase transition material to thereby transition the Device from a high resistive state (HRS) to a low resistive state (LRS) by application of a set voltage and further to return the Device from the LRS back to the HRS by application of a reset voltage.

Phase transition based resistive random-access memory

A method for precisely identifying a fixed point of reference on a human jaw including providing a mandibular c-clamp, which has a shaft, an upper prong fixedly connected to the shaft, a lower prong movable along the shaft, and a wedge configured to selectively secure the lower prong to the shaft. The upper prong of the mandibular c-clamp is inserted into a patient's mouth. The lower prong of the mandibular c-clamp is then moved along the shaft to close on a patient's chin compressing patient's soft tissue, and a position of the lower prong is secured on the shaft using the wedge so that the lower prong is no longer movable along the shaft. A sensor is then secured to a designated area of the mandibular c-clamp so as to provide a reference point.

Method for utilizing a mandibular c-clamp to identify a fixed point of reference on a human jaw

Mandibular c-clamp

Method for manufacturing an array of sensors on a single chip

Device having an array of sensors on a single chip

A method for continuously evaluating an X-ray unit. The method includes placing an X-ray sensor converter having a photo diode and a scintillation crystal in a path of an X-ray beam emitted by the X-ray unit, using the X-ray sensor converter to convert an X-ray beam energy into an electric signal, providing an amplifier connected to the X-ray sensor converter, conveying the electric signal from the X-ray sensor converter to the amplifier, amplifying the electric signal with the amplifier, and measuring a spectrum of the X-ray tube energy by continuously sampling and quantifying the amplified electric signal.

Method and apparatus for characterization of X-ray energy outputs of medical X-ray generators

A method for performing a stereotactic brain surgery. The method includes first interposing a left and a right anthropological baselines on a patient's face, each trago-orbital anthropological baseline connecting an orbitale point and an auricular point on a corresponding side of the patient's face. A headgear unit having a pair of temple elements and a front housing, where the front housing includes at least two cameras and a 3D compass, is then positioned on a patient's head. Each of the two cameras is adjusted such that its view field picks up one of the two trago-orbital anthropological baselines on the patient's face. These view fields of the two cameras are then used to construct a Human Skull Base Plane as a plane formed by the left and right anthropological baselines when these anthropological baselines are parallel and aligned. The same view fields of the two cameras are also used to identify a precise center of the patient's face, and a center of the front housing is then positioned in alignment with the center of the patient's face. The 3D compass is then positioned into a measuring plane coinciding with the Human Skull Base Plane, and is used to quantitatively measure a three-dimensional orientation of the patient's head at the time when the 3D compass is positioned within the measuring plane coinciding with the constructed Human Skull Base Plane. An image of a patient's brain is then obtained and stored in correlation with the measured three-dimensional orientation of the patient's head. Prior to the surgery, the patient's head is positioned into the same position in which the image was taken. A stereotactic brain surgery is then performed using the stored image.

Method for performing stereotactic brain surgery using 3D geometric modeling

Highly selective nanostructure sensors and methods of detecting target analytes

Methods of fabricating micro- and nanostructures comprise top-down etching of lithographically patterned GaN layer to form an array of micro- or nanopillar structures, followed by selective growth of GaN shells over the pillar structures via selective epitaxy. Also provided are methods of forming micro- and nanodisk structures and microstructures formed from thereby.

Methods of fabricating micro- and nanostructure arrays and structures formed therefrom

A method and apparatus for determining a three-dimensional orientation of a human head. The method includes first interposing a left and a right anthropological baselines on a patient's face, each anthropological baseline connecting an orbitale point and an auricular point on a corresponding side of the patient's face. A headgear unit having a pair of temple elements and a from housing rotatably attached to the temple elements, where the front housing includes at least two cameras and a 3D compass all movable within the front housing, is then positioned on a patient's head. Each of the two cameras is adjusted such that its view field picks up one of the two anthropological baselines on the patient's face. These view fields of the two cameras are then used to construct a Human Skull Base Plane as a plane formed by the left and right anthropological baselines when these anthropological baselines are parallel and aligned. The 3D compass is then positioned into a measuring plane coinciding with the Human Skull Base Plane, and is used to quantitatively measure a three-dimensional orientation of the patient's head at the time when the 3D compass is positioned within the measuring plane coinciding with the constructed Human Skull Base Plane.

Method and apparatus for unambiguously determining orientation of a human head in 3D geometric modeling

An X-ray system including an X-ray source generating X-rays, an X-ray receptor receiving the X-rays and generating X-ray images, a patient satellite and a server connected to the X-ray source, the X-ray receptor and the patient satellite. The patient satellite is secured to a patient positioned between the X-ray source and the X-ray receptor and includes an angular orientation sensor and a distance sensor. The angular orientation sensor detects an angular orientation of the patient and outputs a signal to an operator allowing the operator to position the patient with respect to the X-ray source and the X-ray receptor so as to eliminate an angular distortion in the X-ray images. The distance sensor measures a distance between the patient and the X-ray receptor.

X-ray system and method of using thereof

In a system for analyzing the spine of a patient, an X-ray is taken at one location, and the resulting X-ray image is transmitted to a remote location. At the remote location, the raw image is presented to a user who then selects some of the vertices of a polygon approximating the shape of the vertebrae in the X-ray. A processor is then used to calculate the position of the remaining vertices. The idealized shapes are then used to generate a report indicative of the spine. If necessary, a positioner is placed on the patient while the X-ray is taken and the image of the positioner is used to determine an angle of distortion of the vertebrae image and a scaling factor that can be used to determine the actual size of the vertebrae and the spatial spinal segmental relationship.

Method and apparatus for measuring spinal characteristics of a patient

The present invention grows nanostructures using a microwave heating-based sublimation-sandwich SiC polytype growth method comprising: creating a sandwich cell by placing a source wafer parallel to a substrate wafer, leaving a small gap between the source wafer and the substrate wafer; placing a microwave heating head around the sandwich cell to selectively heat the source wafer to a source wafer temperature and the substrate wafer to a substrate wafer temperature; creating a temperature gradient between the source wafer temperature and the substrate wafer temperature; sublimating Si- and C-containing species from the source wafer, producing Si- and C-containing vapor species; converting the Si- and C-containing vapor species into liquid metallic alloy nanodroplets by allowing the metalized substrate wafer to absorb the Si- and C-containing vapor species; and growing nanostructures on the substrate wafer once the alloy droplets reach a saturation point for SiC. The substrate wafer may be coated with a thin metallic film, metal nanoparticles, and/or a catalyst.

Microwave heating for semiconductor nanostructure fabrication

Growing community of inventors

North Potomac, MD, United States of America

Albert V Davydov