摘要:
A frequency modulated spectroscopy system, including a photo-detector, a band-pass filter to filter the output of the photo-detector, and a rectifier to demodulate. The band-pass filter has a relatively high Q factor. With the high Q factor band-pass filter and rectifier, a reference sinusoid is not required for demodulation, resulting in phase-insensitive spectroscopy. Other embodiments are described and claimed.
摘要:
The present invention relates to a dark-field laser-scattering microscope for analyzing single macromolecules. More specifically, the present invention relates to a microscope with a variable wavelength, movable, collimated laser for dark-field light scattering of macromolecules in-vivo to reveal characteristics such as size, shape, molecular weight, and refractive index. The microscope is capable of constructing a three-dimensional image of a sample, with the use of a computer, without separating the sample from the in-vivo environment or contaminating the sample with fluorescent dyes.
摘要:
A frequency modulated spectroscopy system, including a photo-detector, a band-pass filter to filter the output of the photo-detector, and a rectifier to demodulate. The band-pass filter has a relatively high Q factor. With the high Q factor band-pass filter and rectifier, a reference sinusoid is not required for demodulation, resulting in phase-insensitive spectroscopy. Other embodiments are described and claimed.
摘要:
To further isolate the scattered light 112 of a specific particle from the scattered light of a different particle, a pin hole device 116 can be used. The pin hole device 116 prevents unfocused light from other particles from entering the second plane 118, thus isolating a desired, focused image of one particle 110 of the sample 106. In one embodiment, the pin hole 116 has a size of several microns. At the second plane 118, a traditional imaging detection device 120 detects the defocused light. The position of the second image plane 118 is chosen for good angular resolution of the scattered light 112, and at the same time gives enough light for the imaging detection device 120 to obtain a sufficient reading.
摘要:
A method of rendering a graphical object (e.g., 801) on a page (800), is disclosed. A region of the page containing the graphical object (801) is marked as output incompatible based on the graphical object (801) being output incompatible. A bounding box comprising the marked region is determined. A proportion of a number of the regions marked as output incompatible are determined to a total number of regions in the bounding box. A further region within the bounding box is marked as output incompatible to increase the determined proportion above a threshold. The graphical object in the marked region and the further marked region is converted into an output compatible graphical object if the determined proportion is above the threshold. The output compatible graphical object is rendered.
摘要:
EMI emissions generated by clock signals in a multi-slot electronic system are reduced by providing out-of-phase clock signals to alternate slots, which cause EMI emissions at typical testing distances and farther to be reduced. An electronic equipment comprises a plurality of slots, each slot operable to receive a clock signal and a plurality of phases of the clock signal, wherein a first phase of the clock signal is routed to a portion of the slots and a second phase of the clock signal is routed to a different portion of the slots. The second phase of the clock signal may be substantially 180° out-of-phase with the first phase of the clock signal.
摘要:
Provided is a sandal comprising a base comprising a forward through hole and two aligned through holes at either side, and a strap comprising a projecting enlargement at a forward end and a fork including two rear bifurcations each having two projecting enlargements at its both ends. The enlargements are fastened in the through holes. The sandal has increased structural strength.
摘要:
A method of manufacturing a non-volatile memory cell includes forming a first dielectric layer on a substrate. A second dielectric layer having a trench is formed on the first dielectric layer. Thereafter, a pair of charge storage spacers is formed on sidewalls of the trench. A third dielectric layer is then formed over the substrate to cover the first dielectric layer, the charge storage spacers and second dielectric layer. A conductive structure is formed on the third dielectric layer over the charge storage spacers. Subsequently, portions of the third dielectric layer, the second dielectric layer and first dielectric layer not covered by the conductive structure are removed. Ultimately, source/drain regions are formed in the substrate at each side of the conductive structure.
摘要:
The present disclosure provides a catalyst for oxidative dehydrogenation of butene to butadiene, comprising at least one compound of formula ZnaAlbMcFeeOf.Z(α-Fe2O3), wherein M is at least one element chosen from Be, Mg, Ca, Sr, Mn, Ba, Cu, Co, and Ni, Z represents the percentage by weight of α-Fe2O3 in the catalyst and ranges from 10% to 70%. Also provided herein is a process of preparing said catalyst and the use of said catalyst in an oxidative dehydrogenation of butene to butadiene processes.
摘要翻译:本公开内容提供了丁烯至丁二烯氧化脱氢的催化剂,其包含至少一种式ZnaAlbMcFeeOf.Z(α-Fe2O3)化合物,其中M为选自Be,Mg,Ca,Sr,Mn,Ba ,Cu,Co和Ni中,Z表示催化剂中α-Fe 2 O 3的重量百分比,为10〜70%。 本文还提供了制备所述催化剂的方法和所述催化剂在丁烯到丁二烯过程的氧化脱氢中的用途。
摘要:
A suction head structure (10) and a vacuum cleaner (20) using the same for adsorbing grains is provided. The suction head structure includes an accommodating room (14), a plurality of suction tubes (11), an eject tube (12), and an air inlet (13). The accommodating room is configured for accommodating grains therein. The suction tubes connect with the accommodating room. Each of the plurality of suction tubes is configured for adsorbing grain into the accommodating room. The eject tube connects with the accommodating room. The eject tube is configured for ejecting grains accommodated in the accommodating room. The air inlet connects with the eject tube. The air inlet is configured for injecting cool air into the eject tube.