Abstract: An antenna structure is disposed on a metal unit and includes a first slot, a second slot, a grounding portion and a short-circuiting portion. The first slot is formed on the metal unit along an axis direction and configured to receive a signal feed. The second slot is formed on the metal unit along the axis direction and separated from the first slot by a distance along the axis direction. The grounding portion is coupled to the metal unit. The short-circuiting portion crosses the second slot and is coupled to the grounding portion.

Abstract: An antenna structure is disposed on a metal unit and includes a first slot, a second slot, and a short-circuiting portion. The first slot is formed on the metal unit. The second slot is formed on the metal unit and located at one side of the first slot. The second slot is configured to receive a signal feed. The short-circuiting portion is in a floating state and extends across the first slot without being in direct contact with the first slot.

Abstract: Described are various embodiments of a flight management method and system using same. In one embodiment, a digital flight management system comprises: a digital processing environment comprising instructions to access: flight request data related to a flight plan; aircraft parameter data; a flight risk data source; and geographical data. The instructions are executable to: calculate a predicted flight path; digitally compare the predicted flight path with flight risk data from the flight risk data source to assess a flight risk associated with the predicted flight path; and display via a user interface the predicted fight path in accordance with the flight risk.

Abstract: A power supply system includes: first and second external path selection circuits respectively controlling first and second powers at first and second nodes to be electrically connected to first or second system ports; and an internal path selection circuit controlling a third power at a third node or a fourth power at a fourth node to be electrically connected to one or more power conversion modules. The first and the second external path selection circuits, the internal path selection circuit and the power conversion modules perform one of the following operations: (1) receiving at least one external power from one or more of the first and second system port, to generate third power at the third node and/or generate fourth power at the fourth node; or (2) converting power from a battery, to generate at least one output power at the first and/or second system port.

Abstract: The present disclosure is related to systems and methods for processing X-ray images. A method for processing an X-ray image may include obtaining an X-ray image; and determining a metal image based on the X-ray image by using a trained metal detection model. The metal image includes information of a metal object in the X-ray image.

Abstract: Air sampling sensor and system for detecting volatile organic compounds and applications thereof. A nanoparticle-structured chemiresistive sensor array in the analyzer generates an output signal based on the presence of selected volatile organic compounds in an air sample. The sensors of the array include sensing films from the group of molecularly-linked gold nanoparticles with different linking and capping molecules and gold nanoparticles of different sizes. A micro-processing unit analyzes the output signal of the sensor array and indicates the presence or absence of selected volatile organic compounds. The air sampling system can be used to analyze human breath and report the presence of volatile organic compounds relevant to lung cancer biomarkers. The air sampling system can also be used as an environmental air monitoring system to detect the presence of hazardous chemicals in the air.

Abstract: Described are various embodiments of a flight management method and system using same. In one embodiment, a digital flight management system comprises: a digital processing environment comprising instructions to access: flight request data related to a flight plan; aircraft parameter data; a flight risk data source; and geographical data. The instructions are executable to: calculate a predicted flight path; digitally compare the predicted flight path with flight risk data from the flight risk data source to assess a flight risk associated with the predicted flight path; and display via a user interface the predicted fight path in accordance with the flight risk.

Abstract: Nanoparticles with a bimetallic silver-copper (AgCu) alloy composition with ambient (room temperature) sintering properties. The bimetallic alloy is formulated with nanoparticles which are contained in a stable nanoink or nanopaste. The nanoink or nanopaste can be printed on paper and other substrates and be sintered under room temperatures. A method of creating the AgCu composition is also provided.

Abstract: A method and a system for medical imaging may be provided. A first optical image of a target subject that includes a target region to be scanned or treated by a medical device may be obtained. At least one body part boundary and at least one feature point of the target subject may be identified using at least one target recognition model from the first optical image. An image region corresponding to the target region of the target subject may be identified from the first optical image based on the at least one body part boundary and the at least one feature point. At least one first edge of the image region may be determined based on the at least one body part boundary, and at least one second edge of the image region may be determined based on the at least one feature point.

Abstract: An air outlet assembly and an air conditioning equipment are provided in the present application. The air outlet assembly includes an inner shell, and the inner shell is configured with a first air duct and an air outlet connected to the first air duct; an outer shell, the outer shell is arranged around an outside of the inner shell to define a second air duct with the inner shell, and the second air duct is connected to the first air duct; and a supporting member connected to the inner shell and the outer shell. The present application aims to solve a technical problem of insufficient stability of the air outlet assembly and can quickly reduce an indoor temperature difference and improve a sensory effect.

Abstract: A low temperature sinterable copper nanoparticle or nanowire, comprising gold, zinc, nickel, tin, or aluminum as an alloying metal, and a capping agent. The nanoparticles or nanowires may be deposited on porous or fibrous substrates, the capping agent desorbed, and sintered at low temperature to form conductive traces or sensing elements. The nanoparticles or nanowires may be deposited by aerosol jet, inkjet or dispenser printers, for example.

Abstract: A fluid and power provision apparatus is provided. The apparatus includes a power provision device and a pump assembly. The pump assembly includes a motor, a transmission system, a piston assembly, and a collar assembly. The piston assembly includes a piston sleeve, a piston, and a piston arm operably coupled to the piston and the transmission system to transmit energy from the motor to articulate the piston within the piston sleeve. The collar assembly forms a collar plenum, a first flowpath, and a second flowpath. The piston sleeve extends at least in part into the collar plenum. The first flowpath extends in fluid communication from the collar plenum to a fluid supply outlet. The second flowpath extends in fluid communication from an interior of the apparatus to the first flowpath.

Abstract: The present disclosure relates to a system and a method for image reconstruction. The method may include obtaining a projection image of a subject acquired by an imaging device, the projection image including a first region with a normal exposure corresponding to a first portion of the subject and a second region with an overexposure corresponding to a second portion of the subject; using first pixel values of first pixels in the first region to correct second pixel values of second pixels in the second region; and reconstructing, based on the first pixel values of the first pixels in the first region and the corrected second pixel values of the second pixels in the second region, a target image of the subject.

Abstract: Method and system for geometric correction based on image tracking, the method including: obtaining a plurality of projection images of a geometric model, each of the projection images including a projection marker corresponding to an original marker in the geometric model; obtaining an initial correspondence between the original markers in the geometric model and the projection markers in one of the projection images; determining a target correspondence between the original markers in the geometric model and the projection markers in the tracked projection image by tracking, based on a correlation of the projection images and the initial correspondence, the projection markers in the projection images; performing, based on the target correspondence, a geometric correction.

Abstract: The present disclosure relates to a method of making one or more PAA-coated silver nanoparticles, including: heating an aqueous solution including a silver source material such as silver nitrate, a reducing agent such as monoethanolamine, and a capping molecule such as PAA under conditions suitable for forming a reaction mixture; and contacting the reaction mixture with an antisolvent to form one or more PAA-coated silver nanoparticles. In embodiments, the present disclosure includes a cathode catalyst, including: one or more substantially monodisperse PAA-coated silver nanoparticles, as well as cathodes and electrochemical cells including the PAA-coated silver nanoparticles.

Abstract: A process for continuous production of C2-C4-monoalkanolamines by reaction of a corresponding C2-C4-alkylene oxide with a molar excess of ammonia (NH3), wherein aqueous ammonia is employed, in the liquid phase and in the presence of an acidic cation exchanger as catalyst which contains a crosslinked copolymer comprising acidic functional groups as the carrier matrix, wherein the cation exchanger has a total exchange capacity of not less than 1.8 eq/L.

Abstract: This application discloses an optical signal control method and apparatus, and belongs to the optical communication field. The apparatus includes: a light source, configured to output a first optical signal; an optical switch module, configured to receive the first optical signal and an external second optical signal, and output a third optical signal; and a detection module, configured to detect whether a power change of the second optical signal on at least one wavelength channel is greater than a preset power change threshold, if so, the optical switch module adjusts on/off states of at least one wavelength channel of the received first optical signal and the at least one wavelength channel of the received second optical signal, so that an adjusted first optical signal and an adjusted second optical signal are combined to obtain the third optical signal.

Abstract: Systems and methods for image processing are provided. The method may include obtain an image sequence. The method may also include determine one or more sets of images from the image sequence, wherein each of the one or more sets of images includes one image or a plurality of consecutive images from the image sequence. The method may further include perform an image processing operation on at least one set of the one or more sets of images. The one or more image processing operation may include one or more of image segmentation, visualization, and image enhancement.

Abstract: A method for preparing a modified sodium fluoride adsorbent includes the following steps: S1. producing spherical particles of NiCl12.6H2O and porous NaF with a mass ratio of 1:3.0-3.5; S2. sintering the spherical particles in a vacuum environment at a temperature of 120-130° C. for 10-40 hours and at a temperature of 280-300° C. for 10-40 hours, respectively, to form an adsorbent intermediate with a NiCl2—NaF framework, wherein, a vacuum degree is less than or equal to 500 pa; and S3. treating the adsorbent intermediate by fluorine-nitrogen mixtures with high purity to obtain the novel sodium fluoride adsorbent having NiCl2—NaF framework. The modified sodium fluoride adsorbent can effectively separate chlorine trifluoride and hydrogen fluoride molecules, and the optimal adsorption rate of hydrogen fluoride is upgraded to more than 98%. While, the optimal adsorption rate of chlorine trifluoride is lowered down to around 3%.

Abstract: Described are various embodiments of a flight management method and system using same. In one embodiment, a digital flight management system comprises: a digital processing environment comprising instructions to access: flight request data related to a flight plan; aircraft parameter data; a flight risk data source; and geographical data. The instructions are executable to: calculate a predicted flight path; digitally compare the predicted flight path with flight risk data from the flight risk data source to assess a flight risk associated with the predicted flight path; and display via a user interface the predicted fight path in accordance with the flight risk.