Abstract: A system and method for characterizing matter, for example, soil organic content is disclosed. A radiation and electric field sensor measure sample properties before, during and after irradiation. Calibrations are developed relating those measurements to useful properties of matter, for example, soil density and organic content. As an example of an embodiment of the disclosed invention an instrument attachment for portable X-ray fluorescence instrumentation was prototyped enabling concurrent volumetric soil organic matter quantification. This primary prototype outperformed more expensive emerging visible-near infrared multivariate instrumentation using parsimonious soil specific simple linear regression (R2 ranged 0.85-0.97) enabling rapid, parallel, nondestructive, cost-effective acquisition of soil elemental concentrations together with organic content data.

Abstract: Techniques and systems are provided for the deployment of small Unmanned Aircraft Systems (sUAS) and Loitering Munitions (LM) from an airborne Small Tactical Unmanned Aircraft System (STUAS).

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for designing a multimodal photonic component. In one aspect, a method includes defining a loss function within a simulation space including multiple voxels and encompassing features of the multimodal photonic component. The loss function corresponds to a target output mode profile for an input mode profile, where the target output mode profile includes a relationship between a set of operating conditions and one or more supported modes of the multimodal photonic component at a particular operative wavelength. The initial structure is defined for one or more features, where at least some of the voxels corresponding to features have a dimension smaller than a smallest operative wavelength of the multimodal photonic component, and values for structural parameters for the features are determined so that a loss according to the loss function is within a threshold loss.

Abstract: A semiconductor structure for RF applications comprises: a first ?TP GaN transistor on an SOI wafer or die; and a first resistor connected to the gate of said first transistor.

Abstract: A system for transferring heat between fluid and a bulk solid. The system includes a plurality of heat exchanger units, each heat exchanger unit comprising: an annular structure including an inner shell and an outer shell; and a first plate and a second plate defining therebetween a conduit for transporting the fluid, wherein the conduit forms a spiral around the inner shell, the spiral extending from the inner shell towards the outer shell, a space between turns of the spiral defining a channel for passage of the bulk solid. The inner shell defines a cylindrical annulus of the annular structure, an axis of the cylindrical annulus being aligned with the direction of gravity during operation. The bulk solid comprises a sorbent material configured to adsorb carbon dioxide from air. The fluid comprises a cooling fluid or a heating fluid.

Abstract: In a general aspect, integrated spatial phase wafer-level imaging is described. In some aspects, an integrated imaging system an integrated image sensor and an edge processor. The integrated image sensor may include: a polarizer pixel configured to filter electromagnetic (EM) radiation and to allow filtered EM radiation having a selected polarization state to pass therethrough; a radiation-sensing pixel configured to detect the filtered EM radiation and to generate a signal in response to detecting the filtered EM radiation; and readout circuitry configured to perform analog preprocessing on the signal generated by the radiation-sensing pixel. The edge processor may be configured to: generate first-order primitives and second-order primitives based on the analog preprocessed signal from the readout circuitry; and determine a plurality of features of an object located in a field-of-view of the radiation-sensing pixel based on the first-order primitives and the second-order primitives.

Abstract: A phytoregulator composition including L-proline, kaolin, and optionally brown algae in wettable powder form for use in plants in flowering and fruiting stages of life is provided.

Abstract: A wafer suitable for epitaxial growth of gallium nitride (GaN) in a Metal Oxide Chemical Vapor Deposition (MOCVD) process. The wafer includes a silicon substrate having a front side and a back side and an edge extending between the front side and the back side, the edge including a front bevel surface connected to the front side and a back bevel surface connected to the back side, wherein the silicon substrate comprises an oxygen denuded silicon layer surrounding a core. The wafer further includes a protection layer being a thermally grown silicon oxide (SiO2) layer substantially covering the front bevel surface and the back bevel surface of the edge, while leaving at least a central region of the front side of the silicon substrate exposed, for preventing meltback during the MOCVD process.

Abstract: The present invention provides methods for cryopreserving a population of cells with improved cell viability. In some aspects, the method comprises contacting a population of cells with a peptoid polymer comprising one or more polar peptoid monomers, e.g., formulated in a cryoprotectant solution, and cooling the population of cells at a temperature of from 0° C. to about ?20° C. for a time period of at least about 3 hours to produce a population of supercooled cells. The supercooling methods of the present invention provide excellent post-thaw cell survival and recovery. In certain embodiments, the population of cells is present in a tissue or an organ that is cryopreserved by performing the supercooling methods of the present invention.

Abstract: Disclosed herein are compositions and methods of fixing and staining rare cells. Further, disclosed herein are methods of identifying circulating tumor cells (CTC). In some embodiments, the method includes: imaging a cell sample to identify a cell of interest; determining a first pixel intensity of a stained nuclear area; determining a second pixel intensity of a background area; calculating a ploidy status of the cell of interest by subtracting the second pixel intensity from the first pixel intensity; and determining whether the cell of interest is a CTC based on the ploidy status. The method may be computer implemented, such that the method uses a machine learning algorithm to identify a feature; process the feature to extract a parameter of interest; analyze the parameter of interest; and when the parameter of interest is greater than or less than a pre-determined threshold, classify the cell of interest as a CTC.

Abstract: A sanding disc stabilizing structure of an orbital sander comprises a casing, a sanding power source, a sanding disc, and at least four springs. The sanding power source is assembled on the casing and comprises a drive shaft and a tool holder disposed on the drive shaft and offset from an axis of the drive shaft. The center of the sanding disc driven by the sanding power source to perform an orbital motion is disposed on the tool holder with a locking screw. Two ends of each of the at least four springs are respectively disposed on the casing and the sanding disc. The free length of each of at least four springs is greater than the spacing between an installation part of the casing and an installation part of the sanding disc provided for one of the at least four springs.

Abstract: A Secure Environment Public Register (SEPR) provides a method and system that allows precious metals in the shape of bar(s) or units to be certified, specially numbered to provide exact linkage to an owner, allow secure movement of precious metals between secure facilities, and though Blockchain allow secure transfer of ownership between individuals and organizations. The SEPR allows gold and other precious metals to be easily held and traded in commerce with all the advantages of holding precious metals. The SEPR system allows exact audits of the metal bars on hand and avoids over-selling units since each bar is serialized and ownership is documented in a public register.

Abstract: A Secure Environment Public Register (SEPR) provides a method and system that allows precious metals in the shape of bar(s) or units to be certified, specially numbered to provide exact linkage to an owner, allow secure movement of precious metals between secure facilities, and though Blockchain allow secure transfer of ownership between individuals and organizations. The SEPR allows gold and other precious metals to be easily held and traded in commerce with all the advantages of holding precious metals. The SEPR system allows exact audits of the metal bars on hand and avoids over-selling units since each bar is serialized and ownership is documented in a public register.

Abstract: A toe-in system allows for electromechanical control to adjust the parallax, or “toe-in”, of two cameras to create an accurately fused 3D stereoscopic image. The system includes of two cameras, an electromechanical adjustment mechanism, an electronic method of distance measurement, image processing software, and a correlation algorithm. The two cameras are to be mounted equidistant from the center axis of the device, with the electromechanical control method attached to each camera independently, or dependently. The cameras may be mounted in a manner that allows for restricted movement by the electromechanical drive mechanism. The electronic distance measurement sensor measures the distance from the objective to the cameras image capturing sensor or center of rotation. With the distance and the kinematic parameters of the electromechanical drive method being known, a correlation algorithm calculates the required quantity of “toe-in” needed to create a fused, stereoscopic, 3D, image.

Abstract: A Secure Environment Public Register (SEPR) provides a method and system that allows precious metals in the shape of bar(s) or units to be certified, specially numbered to provide exact linkage to an owner, allow secure movement of precious metals between secure facilities, and though Blockchain allow secure transfer of ownership between individuals and organizations. The SEPR allows gold and other precious metals to be easily held and traded in commerce with all the advantages of holding precious metals. The SEPR system allows exact audits of the metal bars on hand and avoids over-selling units since each bar is serialized and ownership is documented in a public register.

Abstract: A Secure Environment Public Register (SEPR) provides a method and system that allows precious metals in the shape of bar(s) or units to be certified, specially numbered to provide exact linkage to an owner, allow secure movement of precious metals between secure facilities, and though Blockchain allow secure transfer of ownership between individuals and organizations. The SEPR allows gold and other precious metals to be easily held and traded in commerce with all the advantages of holding precious metals. The SEPR system allows exact audits of the metal bars on hand and avoids over-selling units since each bar is serialized and ownership is documented in a public register.

Abstract: A Secure Environment Public Register (SEPR) provides a method and system that allows precious metals in the shape of bar(s) or units to be certified, specially numbered to provide exact linkage to an owner, allow secure movement of precious metals between secure facilities, and though Blockchain allow secure transfer of ownership between individuals and organizations. The SEPR allows gold and other precious metals to be easily held and traded in commerce with all the advantages of holding precious metals. The SEPR system allows exact audits of the metal bars on hand and avoids over-selling units since each bar is serialized and ownership is documented in a public register.

Abstract: A Secure Environment Public Register (SEPR) provides a method and system that allows precious metals in the shape of bar(s) or units to be certified, specially numbered to provide exact linkage to an owner, allow secure movement of precious metals between secure facilities, and though Blockchain allow secure transfer of ownership between individuals and organizations. The SEPR allows gold and other precious metals to be easily held and traded in commerce with all the advantages of holding precious metals. The SEPR system allows exact audits of the metal bars on hand and avoids over-selling units since each bar is serialized and ownership is documented in a public register.

Abstract: A computer-implemented method for visualizing the appearances of at least two materials includes obtaining a first set of appearance attributes, the appearance attributes of the first set being associated with a first material, the first set of appearance attributes comprising measured appearance attributes, obtaining a second set of appearance attributes, the appearance attributes of the second set being associated with a second material; and obtaining a geometric model of at least one virtual object, the geometric model defining a three-dimensional macroscopic surface geometry of the virtual object.