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公开(公告)号:US12256576B2
公开(公告)日:2025-03-18
申请号:US17499747
申请日:2021-10-12
Inventor: Cody K. Hayashi , Carlos M. Torres, Jr. , Richard C. Ordonez , Nackieb M. Kamin , David Garmire
Abstract: A differential amplifier includes an unmatched pair, including first quantum dots and second quantum dots, and a matched pair, including first and second phototransistors. The unmatched pair has a difference between a first spectrum absorbed by the first quantum dots and a second spectrum absorbed by the second quantum dots. Each of the first and second phototransistors includes a channel. The first quantum dots absorb the first spectrum from incident electromagnetic radiation and gate a first current through the channel of the first phototransistor, and the second quantum dots absorb the second spectrum from the incident electromagnetic radiation and gate a second current through the channel of the second phototransistor. The first and second phototransistors are coupled together for generating a differential output from the first and second currents, the differential output corresponding to the difference between the first and second spectrums within the incident electromagnetic radiation.
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公开(公告)号:US20250084585A1
公开(公告)日:2025-03-13
申请号:US18827314
申请日:2024-09-06
Applicant: The Government of the United States of America, as represented by the Secretary of the Navy
Inventor: Paul C. Trulove , David P. Durkin , Nathaniel E. Larm , Christopher D. Stachurski , Anders J. Gulbrandson
IPC: D06M11/46 , D06M13/503 , D06M16/00 , D06M101/06
Abstract: A method of entrapping a material with at least one nanoscale dimension within a mesoporous fiber welded biopolymer, comprising the steps of preparing a colloidal suspension (wherein the colloidal suspension contains one or more materials with nanoscale dimensions in a compatible solvent), exposing a mesoporous fiber welded biopolymer to the colloidal suspension, entrapping within the mesoporous fiber welded biopolymer one or more materials with nanoscale dimensions, and removing solvent from the resulting composite. A mesoporous natural fiber welded biopolymer material with entrapped materials of nanoscale dimensions which exhibits properties and/or functions that are the combination of those from the mesoporous fiber welded biopolymer and the entrapped material(s) with nanoscale dimensions.
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公开(公告)号:US20250084459A1
公开(公告)日:2025-03-13
申请号:US18776176
申请日:2024-07-17
Applicant: The Government of the United States of America, as represented by the Secretary of the Navy
Inventor: Igor L Medintz , Matthew Chiriboga , Shelby L. Hooe , David A. Hastman , Niko Hildebrandt , Sebastian A. Diaz , Kimihiro Susumu
IPC: C12Q1/6818 , C12Q1/37
Abstract: An energy transfer platform involves a CdSe/ZnS core-shell quantum dot (QD) scaffold having four additional components: terbium metal chelate, ruthenium(II)-phenanthroline, AlexaFluor 647, and Cy5.5. These are positioned in a self-assembled fashion on the QD surface through the utilization of peptide-PNA and DNA bioconjugate linkers. The modular platform can operate to sense multiple different events or targets simultaneously, including sensing of genetic moieties and enzymatic targets.
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公开(公告)号:US12247679B2
公开(公告)日:2025-03-11
申请号:US17736914
申请日:2022-05-04
Inventor: Raymond Mark Gamache , Christopher Marc LeTorre Phifer
Abstract: A self-sealing hose includes an inner rubber layer comprising a first rubber material; and an outer rubber layer comprising a second rubber material. The second rubber material has an ultimate strain of at least 100% and an elastic limit of at least about 7 MPa. The first rubber material has a modulus measured at 250% elongation of less than about 10 kPa.
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公开(公告)号:US20250067645A1
公开(公告)日:2025-02-27
申请号:US18800684
申请日:2024-08-12
Applicant: The Government of the United States of America, as represented by the Secretary of the Navy
Inventor: Andrew J. Birnbaum , John C. Steuben , Anna Lee Kofer Rawlings , Benjamin D. Graber , Athanasios Iliopoulos , John G. Michopoulos , Heonjune Ryou
Abstract: A non-contact material assessment system and method are provided. In embodiments, a system includes: a radiation source generating a pattern of diffracted elements; a detector configured to: capture a first image of a first diffracted element when a sample is in an initial state, and a second image when the sample is in a second state; and capture a first image of a second diffracted element when the sample is in the initial state, and a second image when the sample is in the second state; and a controller to: determine a displacement of the first diffracted element based on the first and second images of the first diffracted element; determine a displacement of the second diffracted element based on the first and second images of the second diffracted element; and determine a characteristic of the sample over based on the displacement of the first and second diffracted elements.
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公开(公告)号:US20250066524A1
公开(公告)日:2025-02-27
申请号:US18812134
申请日:2024-08-22
Applicant: The Government of the United States of America, as represented by the Secretary of the Navy
Inventor: Grant C. Daniels , Meghanne E. Tighe , Matthew D. Thum , Nickolaus K. Weise
IPC: C08F220/28 , B01J20/26 , C08F2/22
Abstract: Disclosed herein is a compound made by copolymerizing a poly(ethylene glycol) acrylate with a first acrylate monomer having a first functional group that interacts with a third functional group having a third functional group type selected from anionic groups, cationic groups, or perfluoroalkyl groups. Optionally, the copolymerization includes a second acrylate monomer having a second functional group that interacts with a fourth functional group having a fourth functional group type selected from anionic groups, cationic groups, and perfluoroalkyl groups. The third functional group type and the fourth functional group type are different. When the compound is porous, as when made by high internal phase emulsion polymerization, it may be used for per- and poly-fluoro alkyl substance decontamination.
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公开(公告)号:US12228314B1
公开(公告)日:2025-02-18
申请号:US17661551
申请日:2022-04-30
Inventor: Kevin Woods
Abstract: A cascading thermoelectric heat pump employs a stack of cold plates with a series of thermoelectric coolers sandwiched between each adjacent pair of cold plates, allowing for noise-free cooling and heating of a 67° F. water supply, capable of delivering water chilled to about 44° F. and water heated to about 90° F.
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公开(公告)号:US12227276B1
公开(公告)日:2025-02-18
申请号:US17840660
申请日:2022-06-15
Inventor: Paul V Cavallaro , Nicholas A Valm , Jacob D O'Donnell , Michael P Smith
Abstract: An inflatable deployable mast fairing assembly is provided with a rigid foundation, a hydrodynamic fairing and at least one soft actuator. The hydrodynamic fairing is shaped to close an aperture formed between a deployable hardware system and a sail bay opening. A first soft actuator connects to the rigid foundation at one end and to the hydrodynamic fairing at another. Fluid pressurization elongates a first soft actuator coaxial to the deployable hardware system to fittedly position the fairing in the aperture with a void in the fairing to receive the hardware system. If the rigid foundation is sail-mounted, a second soft actuator connects to the sail-mounted foundation opposite the first soft actuator and to a counter flange mechanically connected to the hydrodynamic fairing. A second pressurization elongates the second soft actuator coaxial to the deployable hardware system to retract the hydrodynamic fairing from the aperture.
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公开(公告)号:US20250043462A1
公开(公告)日:2025-02-06
申请号:US18791989
申请日:2024-08-01
Applicant: The Government of the United States of America, as represented by the Secretary of the Navy
Inventor: Jeffrey G. Lundin , Ashley C. Fulton , Matthew D. Thum , James E. Cilek
IPC: D01F1/10 , A01N25/10 , A01N25/34 , A01N37/18 , A01N43/40 , A01P17/00 , D01D1/02 , D01D5/00 , D01F6/62 , D04H1/435 , D04H1/728
Abstract: An insect repellent material made from recycled polyethylene terephthalate and an insect repellent or from polyethylene terephthalate, N,N-diethyl-meta-toluamide, and picaridin. The material may be in the form of a fiber spun from a solution of the recycled polyethylene terephthalate and the insect repellent.
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公开(公告)号:US20250036982A1
公开(公告)日:2025-01-30
申请号:US18783788
申请日:2024-07-25
Applicant: The Government of the United States of America, as represented by the Secretary of the Navy
Inventor: Zachary A. Bishof , Jaelle P. Scheuerman , Christopher J. Michael
Abstract: A method that includes receiving user input associated with identifying a threshold point associated with a classification task, identifying, a machine learning model, in the first set of visual data, a machine placement candidate point associated with identifying the threshold point, and identifying, based on the machine placement candidate point, a set of baseline confidence values via a baseline uncertainty model. The method includes training the machine learning model based on a determined state space by identifying, subsequent sets of visual data additional threshold points, receiving user feedback indicating an accuracy, comparing the baseline confidence values with locations associated with the additional threshold points, generating reward values based on an identified amount of error, and configuring the machine learning model based on the reward values. The method includes identifying in a second set of visual data, via the trained machine learning model, a visual feature associated with the classification task.
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