摘要:
A system for analyzing gas concentrations in a gas mixture includes an array of semiconductor light sources which are configured to generate an electromagnetic radiation having a narrow bandwidth. A controller modulates the electromagnetic radiation at a modulating frequency to provide light pulses at an absorption wavelength of at least one target gas. The system also includes an acoustic resonant gas chamber to hold the gas mixture and configured to receive the light pulses and amplify acoustic signals emanating from the gas mixture. A processor determines a concentration of the target gas based on acoustic signals.
摘要:
Systems and methods for displaying tab elements representing viewable page elements. A set of one or more main tabs are displayed on a first portion of a display, each main tab defining a link to a database object stored in a database. A user selection of a first one of the main tabs is received (e.g., to determine which tab provides default display), and two or more side tabs are displayed in a first, default order on a second portion of the display, each said side tab defining a link to an element or portion of a first object. In certain aspects, a user selection of a new order for the two or more side tabs is received, and thereafter the two or more side tabs are displayed in the new order, and the new order is stored to the database, wherein upon later access of the first object by the user, the two or more side tabs are automatically displayed in the new order.
摘要:
Methods and systems for processing samples fixed to a porous substrate generally comprising, a compressor defining one or more fluid isolation areas, a support, for the porous substrate, having an opening corresponding to one or more of the fluid isolation areas of the compressor, an actuator that causes at least a portion of the compressor to press against the porous substrate, a fluid inlet having access to the fluid isolation area at least when the compressor is pressed against the porous substrate, and a fluid outlet to receive fluid, through the opening in the support corresponding to the fluid isolation area of the compressor, at least when the compressor is pressed against the porous substrate.
摘要:
Disclosed embodiments include systems for analyzing the breath of a patient for the presence of one or more analytes of interest. The systems may include an ion detection system capable of receiving a gas mixture having an analyte of interest expired by a patient, flowing the gas mixture, and ionizing molecules within the gas mixture. The molecules include at least the analyte of interest. The ion detection system is also capable of detecting the ionized analyte of interest.
摘要:
Crystalline pyridone compound, which is the white needle crystal containing no water and other crystallization solvents. Its unit cell belongs to monoclinic system and has space group of P21/n, wherein a=3.8512(2), b=20.2535(12), c=12.1628(6) Å, β=92.850(5)° and crystal cell volume V=947.53(9) Å3. Pyridone compound crystal of this form has the needed properties for preparing or making treatment compositions in large scale. It can be used for treating organs fibrosis of liver, kidney, lung and etc. and reducing skin scars.
摘要:
Techniques are provided for using a multi-stage actuator to actuate one or more optical components of an optical head. The multi-stage actuator includes a cross-layer displacement component which actuates an optical component to change the beam focus in a displacement range corresponding to the thickness of the data layers in a holographic disk, such that a beam is impinged on the target data layer. The multi-stage actuator also includes a intra-layer focusing component which actuates the optical component in a smaller range to focus the beam on the target data position. The cross-layer displacement component and the intra-layer focusing component may each include more than one actuator. In some embodiments, the focusing component also actuates the optical component in a tilting motion to compensate for movement or imperfections of the disk during a reading or recording process.
摘要:
A device, such as a switch structure, is provided, the device including a contact and a conductive element. The conductive element can be configured to be selectively moveable between a non-contacting position, in which the conductive element is separated from the contact (in some cases by a distance less than or equal to about 4 μm, and in others by less than or equal to about 1 μm), and a contacting position, in which the conductive element contacts and establishes electrical communication with the contact. When the conductive element is disposed in the non-contacting position, the contact and the conductive element can be configured to support an electric field therebetween with a magnitude of greater than 320 V μm−1 and/or a potential difference of about 330 V or more.
摘要:
Crystalline pyridone compound, which is the white needle crystal containing no water and other crystallization solvents. Its unit cell belongs to monoclinic system and has space group of P21/n, wherein a=3.8512(2), b=20.2535(12), c=12.1628(6) Å, β=92.850(5)° and crystal cell volume V=947.53(9) Å3. Pyridone compound crystal of this form has the needed properties for preparing or making treatment compositions in large scale. It can be used for treating organs fibrosis of liver, kidney, lung and etc. and reducing skin scars.
摘要:
A MEMS switch includes a substrate, a movable actuator coupled to the substrate, a substrate contact, a substrate electrode, and a conductive stopper electrically coupled to the movable actuator and structured to prevent the movable actuator from contacting the substrate electrode while allowing the movable actuator to make contact with the substrate contact.
摘要:
A detection system for detecting target material is provided. The system comprises a photonic structure having a reflectance-band and associated side bands; an illumination source for illuminating at a wavelength in at least one of an edge of the reflectance-band and the side bands of the photonic structure and for generating a return beam; a detector system having an intensity-sensitive channel configured to detect an in-line signal from the return beam and a phase-sensitive channel configured to detect a differential phase contrast signal from the return beam; and a processing system for receiving and adding in quadrature the in-line signal and the differential phase contrast signal to generate a joint signal, and for determining one of the presence or the absence of the target material on the photonic structure using the joint signal.