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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Применить Всего найдено 5. Отображено 5.
07-01-2021 дата публикации

SYSTEMS AND METHODS FOR SYNTHETIC PHOTON RADIATION THERAPY

Номер: US20210001152A1
Принадлежит:

Example methods and systems for photon energy synthesis and introducing energy modulation into radiation treatment planning process and delivery process are provided. Example methods comprise obtaining, via a linear accelerator, a first photon energy beam dosimetric data, a second photon energy beam dosimetric data, and an intermediate photon energy beam dosimetric data, and fitting the first photon energy beam dosimetric data and the second photon energy beam dosimetric data according to a preset fitting coefficient. A synthesized photon beam is then generated from dosimetric data from the fitted first photon energy beam dosimetric data and the fitted second photon energy beam dosimetric data. Further, continuously variable photon energies can be derived, where two or more existing photon energy beams are combined linearly and applied to both forward and inverse radiation planning modules for a radiation treatment plan. 1. A photon energy synthesis method comprising:obtaining, via a linear accelerator, a first photon energy beam dosimetric data, a second photon energy beam dosimetric data, and an intermediate photon energy beam dosimetric data;fitting the first photon energy beam dosimetric data and the second photon energy beam dosimetric data according to a preset fitting coefficient;generating a synthesized photon beam dosimetric data from the fitted first photon energy beam dosimetric data and the fitted second photon energy beam dosimetric data; comparing the fitting deviation with a preset threshold;', 'if the fitting deviation is less than or equal to the preset threshold, executing instructions to apply the synthesized photon energy beam; and', 'if the fitting deviation is greater than the preset threshold, executing instructions to responsively adjust the preset fitting coefficient., 'calculating a dosimetric data fitting deviation based on a difference between the synthesized photon beam dosimetric data and the intermediate photon energy beam dosimetric ...

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08-09-2022 дата публикации

カメラ装置

Номер: JP2022132654A

【課題】カメラ装置を提供する。 【解決手段】カメラ装置は、複数のレンズ、および、環状体を有し、レンズ、および、環状体は、光軸に沿ってオブジェクト側からイメージ側に配置される。環状体は、オブジェクト側とこれらのレンズの間、これらのレンズの間、または、これらのレンズとイメージ側の間に設置される。環状体は、環状本体、外環状部分、および、内環状部分を有し、環状本体と外環状部分、および、内環状部分は連結し、環状本体は、外環状部分と内環状部分の間に設置され、内環状部分は非円形であり、且つ、光軸を囲繞して、ホールを形成する。内環状部分より形成され、光軸が通過するホールの最大尺寸はDx、内環状部分より形成され、光軸が通過するホールの最小尺寸はDyである。カメラ装置はDx>Dyを満たす。外環状部分と内環状部分の間は、それぞれ、水平距離と垂直距離を有し、水平距離と垂直距離の比率は、1.1から27.6の間である。 【選択図】図2

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12-03-2020 дата публикации

カメラ装置

Номер: JP2020038402A

【課題】カメラ装置を提供する。【解決手段】カメラ装置は、複数のレンズ、および、環状体を有する。これらのレンズ、および、環状体は、光軸に沿って、オブジェクト側からイメージ側に配置される。環状体は、オブジェクト側とこれらのレンズの間、これらのレンズの間、または、これらのレンズとイメージ側の間に設置される。環状体は、環状本体、外環状部分、および、内環状部分を有し、環状本体と外環状部分、および、内環状部分は連結し、環状本体は、外環状部分と内環状部分の間に設置され、内環状部分は非円形であり、且つ、光軸を囲繞して、ホールを形成する。内環状部分より形成され、光軸が通過するホールの最大尺寸はDx、内環状部分より形成され、光軸が通過するホールの最小尺寸はDyである。カメラ装置は以下の条件を満たす:Dx > Dy;0 mm < ΔS/ (Dx/2) < 8 mm。式中、ΔSは、Dxを直径とする円の面積とホールの断面積の差である。【選択図】図2

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02-02-2023 дата публикации

Wireless networking method having low power consumption and high interference resistance

Номер: US20230033149A1
Принадлежит: Qingdao Jiaohuwulian Technology Co Ltd

Disclosed is a wireless networking method having low power consumption and high interference resistance. Basic communication units comprise a base station and a node. The base station takes charge of network construction and management, and the node and the base station communicate with each other by using adaptive frequency hopping and time division multiple access technologies; a plurality of time slots are obtained by division for communication, the time slots are divided into transaction time slots and data time slots, and the transaction time slots take charge of broadcast information transmission, synchronous information transmission, and network access of the node; and the data time slots take charge of data interaction between the base station and the node. The method can achieve available low-power-consumption, large-capacity, high-reliability, and low-latency underlying wireless communication in a complex and congested wireless environment, and can operate in a 2.4 GHz frequency band to achieve worldwide availability.

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19-12-2023 дата публикации

Systems and methods for synthetic photon radiation therapy

Номер: US11844963B2
Принадлежит: Duke University

Example methods and systems for photon energy synthesis and introducing energy modulation into radiation treatment planning process and delivery process are provided. Example methods comprise obtaining, via a linear accelerator, a first photon energy beam dosimetric data, a second photon energy beam dosimetric data, and an intermediate photon energy beam dosimetric data, and fitting the first photon energy beam dosimetric data and the second photon energy beam dosimetric data according to a preset fitting coefficient. A synthesized photon beam is then generated from dosimetric data from the fitted first photon energy beam dosimetric data and the fitted second photon energy beam dosimetric data. Further, continuously variable photon energies can be derived, where two or more existing photon energy beams are combined linearly and applied to both forward and inverse radiation planning modules for a radiation treatment plan.

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