This invention is an electrodeposition process that permits nickel filling of features such as pinholes in metal tubing. The process uses a deposition rate suppressing additive (“suppressor” that yields “critical behavior” such that deposition occurs at more negative potentials (“active”) but does...

This invention is a microfluidic platform that can generate real-time, quantitative measurements of cell migration and invasion through porous membranes. This system uses microfabricated electronic components built on both sides of porous membranes to produce the electronic signals that can “...

We propose a new form of artificial synapse based on dynamically reconfigurable superconducting Josephson junctions with magnetic clusters in the barrier. The spiking energy per pulse varies with the magnetic configuration. The critical current of each magnetic Josephson junction, which is...

Certain materials, when exposed to ionizing radiation, can be stimulated to emit a measurable signal that may be used to estimate the received radiation dose. Certain of these materials may be incorporated into a dosimeter that is worn or carried by an individual to measure the individual's...

This is a method and software for testing computer software. The method applies to a broad range of software but is particularly applicable software with complex conditions and decision, e.g., process control, avionics, and other areas. This method also verifies equivalence classes for module unit...

Today’s batteries contain flammable, toxic, liquid electrolytes. Therefore, safer all-solid-state batteries are a current research goal. This requires solid-electrolyte materials with high ionic mobilities, high chemical and electrochemical stabilities, and good formability. The status-quo solid-...

Currently many space projects require, at their core, sensors capable of measuring spurious forces acting on the spacecraft with extremely high sensitivity at ng/√Hz levels and below, particularly for high accuracy navigation and drag-free flight. NIST has developed a novel and simple concept for...

This invention is a new 3D printing process of continuously or discretely controlling composition of photo-polymerization reactants to produce 3D objects with spatially varying chemical, physical and mechanical properties. This invention is based on photo­ polymerization of liquid reactant (monomer...

A novel architecture for optical frequency conversion in a waveguide is proposed, which increases the conversion efficiency compared to existing architectures. It consists of several straight sections of phase-matched nonlinear optical waveguides linked by dispersion-engineered bends to allow...

This invention is a complete system comprising a novel chip and chip holder that enables routine, high-resolution imaging and spectroscopy of samples in liquids and high-pressure gases in the transmission electron microscope (TEM). The system overcomes limitations in liquid-layer thickness control...

A longstanding and thorny problem in force metrology is that of accurately measuring rapidly changing forces. A key part of the problem is that the dynamic response of force sensors changes depending on the system in which the sensor is used, meaning that an external calibration of the sensor is...

In future quantum communication systems, single photons, as the information carriers, are required to possess very narrow linewidths and accurate wavelengths for an efficient interaction with quantum memories. Spectral characterization of such single photon sources is necessary and must be...

This is a method that centrally manages Attribute-Based Access Control (ABAC) policies and locally computes and enforces decisions over those policies on objects that are locally protected using Access Control Lists (ACLs). The method is as follows: 1) Centrally express an ABAC policy that conforms...

Radiation-induced materials modification is ubiquitous. These applications rely on dosimetry to reliably deliver the desired amount of radiation to the right place. Currently the dosimetry standard is based on calorimetry of a large water phantom irradiated exclusively by Co-60 gamma rays. The...

Ultrafast laser pulse shaping is a well-developed field with available commercial products. Typically, the amplitude, phase or polarization of the light is controlled by placing a spatial light modulator (SLM) at the focus of the first mirror, in a technique known as Fourier-transform pulse shaping...

The invention is a photonic device whose resonance characteristics (such as, quality factor, peak position, and free spectral range) change in a predictable way in response to the interaction of radiation with the sensor and/or its surroundings. The invention can be used in an offline mode, in...

The US Mint charged NIST with more cost effect 5 and 25 cents coins. Currently, commercial cupronickel C71300 alloy is not cost effective to produce 5 cent coins. C77000 is a commercial ternary alloy of Cu, Ni, and Zn possessing similar properties of C71300 but cost approximately 20% less to...

The device is a shearing system that is essentially a portion of a large scissors, used to precisely shear a specimen while recording the loads and deformations. It consists of two metallic half¬ devices that are installed in a standard servohydraulic mechanical testing system. The sample is placed...

The development of a new generation of industrial robots having multiple arms, smarter, easier to program, and can work side-by-side with human workers and other robots promises to revolutionize the manufacturing industry. However, the collaborative performance of the multiple arm operation is...

NIST has developed a device that uses multiple wavelengths (colors) of light and/or multiple species of gas to independently measure the distortions imposed on an optical cavity, cell, or other optical element that holds gas due to the forces applied by the gas. The device measures differences...

This invention is a data structure, which can be referred to as a block matrix, that supports the ongoing addition of hash-linked records while also allowing the deletion of arbitrary records, preserving hash-based integrity assurance that other blocks are unchanged. The block matrix data structure...

Rydberg atoms have been shown to be very useful in performing absolute measurements of the magnitude of radio frequency (RF) fields using electromagnetically induced transparency (EIT). However, until this invention, there has been less success in using Rydberg atoms for the measurement of the...

Long Term Evolution (LTE) systems do not share their idle Physical Resource Blocks (PRBs) with other users. This is a waste of scarce spectrum resources. When the idle PRBs of LTE system are used by a Secondary User (SU), then the LTE spectrum utilization goes up. Thus, this invention solves the...

This invention is scanning microwave ellipsometry. It contains a test head that rotates the electric microwave field relative to the sample without rotating the sample; a test head mounted onto a 6-axis robotic arm; and an algorithm that fits the microwave ellipsometry data. This a new tool and...