Abstract: A surface roughness measurement method includes generating a terahertz emission electromagnetic wave incident on a test object; detecting a plurality of terahertz reception electromagnetic waves reflected, transmitted, or scattered after the terahertz emission electromagnetic wave is incident on the test object; measuring a plurality of characteristic signals based on the terahertz emission electromagnetic wave and the plurality of terahertz reception electromagnetic waves; and analyzing the plurality of characteristic signals to determine a roughness characteristics of a surface of the test object.

Abstract: One or more implementations described include near field communication (NFC)-based payment page opening applied to a payment terminal device. Based on a near field communication way, a first uniform resource locator (URL) is acquired from an NFC tag device, where a length of the first URL is less than or equal to a maximum number of bytes that can be transmitted by the NFC tag device based on the near field communication way at a time, and where the first URL includes a URL query identifier. Based on data already stored by the payment terminal device, a second URL corresponding to the URL query identifier is determined, where the second URL comprises target information used to display a payment page. The payment page is displayed based on the second URL.

Abstract: A layered detection method comprises generating a terahertz emission electromagnetic wave, and emitting the terahertz emission electromagnetic wave at any angle to a solid material; detecting a plurality of terahertz emission electromagnetic waves reflected or transmitted after the terahertz emission electromagnetic wave is incident on the solid material and passes through an entire thickness of the solid material in a first direction; measuring and analyzing a plurality of characteristic signals according to the terahertz emission electromagnetic wave and the plurality of terahertz reception electromagnetic waves, to distinguish the solid material along the first direction into a plurality of parallel layers, and determine a plurality of characteristics of the plurality of layers; and determining at least one defect information of each layer of the plurality of layers according to the plurality of characteristics of the plurality of layers.

Abstract: A residual stress detection method includes generating a terahertz emission electromagnetic wave, and emitting the terahertz emission electromagnetic wave to a test specimen through a first polarizer; detecting, through a second polarizer, a plurality of terahertz reception electromagnetic waves reflected, transmitted or scattered after the terahertz emission electromagnetic wave is incident on the test specimen; measuring a plurality of characteristic signals according to the terahertz emission electromagnetic wave and the plurality of terahertz reception electromagnetic waves; analyzing the plurality of characteristic signals to determine a plurality of characteristics of the test specimen; and determining residual stress of the test specimen according to the plurality of characteristics.

Abstract: A composite structure detecting method includes generating a terahertz emission electromagnetic wave incident on a composite structure, wherein the composite structure comprises a plurality of interface layers; detecting a plurality of terahertz reception electromagnetic waves reflected, transmitted, or scattered after the terahertz emission electromagnetic wave is incident on the plurality of interface layers of the composite structure; measuring a plurality of characteristic signals based on the terahertz emission electromagnetic wave and the plurality of terahertz reception electromagnetic waves; and analyzing the plurality of characteristic signals to determine a plurality of characteristics of the plurality of interface layers.

Abstract: A three-dimensional (3D) memory device and method for reading the same are provided. The device includes memory cell strings each including multiple memory cells. In each memory cell string, a topmost memory cell is connected to a top selection gate connected to a bit line, and a bottommost memory cell is connected to a bottom selection gate. The method includes sequentially programming multiple memory cells in a memory cell string according to a programming sequence; in reading a memory cell, applying a corresponding bit line voltage to the memory cell string according to the programming sequence of the memory cell.

Abstract: A three-dimensional (3D) memory device and method for reading the same are provided. The device includes memory cell strings each including multiple memory cells. In each memory cell string, a topmost memory cell is connected to a top selection gate connected to a bit line, and a bottommost memory cell is connected to a bottom selection gate. The method includes sequentially programming multiple memory cells in a memory cell string according to a programming sequence; in reading a memory cell, applying a corresponding bit line voltage to the memory cell string according to the programming sequence of the memory cell.

Abstract: A mutant of EndoS2 includes one or more mutations in the sequence of a wild-type EndoS2 (SEQ ID NO:1), wherein the one or more mutations are in a peptide region located within residues 133-143, residues 177-182, residues 184-189, residues 221-231, and/or residues 227-237, wherein the mutant of EndoS2 has a low hydrolyzing activity and a high tranglycosylation activity, as compared to those of the wild-type EndoS2. A method for preparing an engineered glycoprotein using the mutant of EndoS2 includes coupling an activated oligosaccharide to a glycoprotein acceptor. The activated oligosaccharide is a glycan oxazoline.

Abstract: An optical engine its use in a bench top flow cytometer, the optical engine having a set of lasers, each focused horizontally along an x-axis to a same horizontal position and vertically along a y-axis to a different vertical position along a same excitation plane of a flow cell, a set of optics that separate fluorescence of a same wavelength range into different locations in a focal plane of collection optics according to the different lasers by which the fluorescent light is excited; and a detector that selectively detects light from the different locations thereby distinguishing between fluorescence emitted within the same wavelength range as excited by the different lasers.

Abstract: A mutant of Endos2 includes one or more mutations in the sequence of a wild-type EndoS2 (SEQ ID NO:1), wherein the one or more mutations are in a peptide region located within residues 133-143, residues 177-182, residues 184-189, residues 221-231, and/or residues 227-237, wherein the mutant of EndoS2 has a low hydrolyzing activity and a high tranglycosylation activity, as compared to those of the wild-type EndoS2. A method for preparing an engineered glycoprotein using the mutant of EndoS2 includes coupling an activated oligosaccharide to a glycoprotein acceptor. The activated oligosaccharide is a glycan oxazoline.

Abstract: A mutant of EndoS2 includes one or more mutations in the sequence of a wild-type EndoS2 (SEQ ID NO: 1), wherein the one or more mutations are in a peptide region located within residues 133-143, residues 177-182, residues 184-189, residues 221-231, and/or residues 227-237, wherein the mutant of EndoS2 has a low hydrolyzing activity and a high tranglycosylation activity, as compared to those of the wild-type EndoS2. A method for preparing an engineered glycoprotein using the mutant of EndoS2 includes coupling an activated oligosaccharide to a glycoprotein acceptor. The activated oligosaccharide is a glycan oxazoline.

Abstract: A mutant of EndoS2 includes one or more mutations in the sequence of a wild-type EndoS2 (SEQ ID NO: 1), wherein the one or more mutations are in a peptide region located within residues 133-143, residues 177-182, residues 184-189, residues 221-231, and/or residues 227-237, wherein the mutant of EndoS2 has a low hydrolyzing activity and a high tranglycosylation activity, as compared to those of the wild-type EndoS2. A method for preparing an engineered glycoprotein using the mutant of EndoS2 includes coupling an activated oligosaccharide to a glycoprotein acceptor. The activated oligosaccharide is a glycan oxazoline.

Abstract: A method for storing electronic documents can include associating a digital seal with at least one electronic document. An image within a user interface can be displayed, wherein the image is a user selectable representation for the digital seal. At least one metadata attribute can be stored as a characteristic related to the digital seal. A storage characteristic of at least one electronic document can be modified based on one or more of the metadata attributes.

Abstract: A method for storing electronic documents can include associating a digital seal with at least one electronic document. An image within a user interface can be displayed, wherein the image is a user selectable representation for the digital seal. At least one metadata attribute can be stored as a characteristic related to the digital seal. A storage characteristic of at least one electronic document can be modified based on one or more of the metadata attributes.

Abstract: A method for storing electronic documents can include associating a digital seal with at least one electronic document. An image within a user interface can be displayed, wherein the image is a user selectable representation for the digital seal. At least one metadata attribute can be stored as a characteristic related to the digital seal. A storage characteristic of at least one electronic document can be modified based on one or more of the metadata attributes.

Abstract: A method for storing electronic documents can include associating a digital seal with at least one electronic document. An image within a user interface can be displayed, wherein the image is a user selectable representation for the digital seal. At least one metadata attribute can be stored as a characteristic related to the digital seal. A storage characteristic of at least one electronic document can be modified based on one or more of the metadata attributes.

Abstract: A method for storing electronic documents can include associating a digital seal with at least one electronic document. An image within a user interface can be displayed, wherein the image is a user selectable representation for the digital seal. At least one metadata attribute can be stored as a characteristic related to the digital seal. A storage characteristic of at least one electronic document can be modified based on one or more of the metadata attributes.

Abstract: A method for storing electronic documents can include associating a digital seal with at least one electronic document. An image within a user interface can be displayed, wherein the image is a user selectable representation for the digital seal. At least one metadata attribute can be stored as a characteristic related to the digital seal. A storage characteristic of at least one electronic document can be modified based on one or more of the metadata attributes.

Abstract: A space heat appliance 2 employs an electrical heating plate 4 incorporating a resistance type heating element, sandwiched between a pair of heat-distributing corrugated metal plates 6, 8 having vertically arranged corrugations, provided adjacent a stone slab 10 whereby heat from the heating plate 4 provides heating of the stone slab which in turn radiates the heat as a far infra-red heat.

Abstract: A method for storing electronic documents can include associating a digital seal with at least one electronic document. An image within a user interface can be displayed, wherein the image is a user selectable representation for the digital seal. At least one metadata attribute can be stored as a characteristic related to the digital seal. A storage characteristic of at least one electronic document can be modified based on one or more of the metadata attributes.