Abstract: Disclosed in the present application is a method for fitting spontaneous emission noise of a lidar system or an optical fiber sensing system. The method includes: providing a trigger collection signal by a signal source; triggering, based on the trigger collection signal, a co-located transceiver module and a distributed transceiver module to perform synchronous detection on a detection target; receiving co-located data and distributed data returned by the detection target; subtracting local noise from the co-located data and the distributed data, respectively; selecting a linear interval to normalize the co-located data; performing subtraction operation on the normalized co-located data and the distributed data to obtain spontaneous emission noise; and fitting the spontaneous emission noise by a function.

Abstract: This disclosure relates to a curable composition that includes at least one poly(arylene ether) copolymer, at least one phosphorus-containing flame retardant, and at least one radical initiator. This disclosure also relates to using the composition to form a film, a laminate, a prepreg, and/or a circuit board.

Abstract: A method for monitoring a running state of a distributed system, an electronic device, and a storage medium are provided. The method comprises: acquiring a first calling key-value pair sent by a first component in a distributed system (101); and determining the current running state of the first component according to a first keyword value, and historical calling data corresponding to a first key code value in a preset database (102).

Abstract: Mechanisms for verifying software are provided, the mechanisms including: identifying a plurality of layers of code of the software including a lowest layer, a middle layer, and a highest layer; generating a low-level specification and an identical refinement proof for each of the plurality of layers using a hardware processor; generating a high-level specification and a lifting refinement proof for each of the plurality of layers; and verifying the software based on the low-level specifications, the identical refinement proofs, the high-level specifications, and the lifting refinement proofs. In some embodiments, one of the low-level specifications is generated using Fixedpoint construction. In some embodiments, one of the high-level specifications is generated by applying a set of transformation rules to one of the low-level specifications.

Abstract: This disclosure relates to a curable composition that includes at least one poly(arylene ether) copolymer, at least one phosphorus-containing flame retardant, and at least one radical initiator. This disclosure also relates to using the composition to form a film, a laminate, a prepreg, and/or a circuit board.

Abstract: An apparatus (100) for analysing a breath sample includes a breath sampler (11), an expandable breath reservoir (20) fluidly connected to the breath sampler (11), a pump (30) fluidly connected to the expandable breath reservoir (20), and a breath analyser (40) fluidly connected to the breath sampler (11). The expandable breath reservoir (20) is configured to expand when a subject breathes into the breath sampler (11) and the pump (30) is configured to remove the contents of the expandable breath reservoir (20) after expansion.

Abstract: This disclosure relates to a curable composition that includes at least first, second, and third polymers. The first polymer includes a first monomer unit and a second monomer unit different from the first monomer unit, in which the first monomer unit has the structure of formula (I) defined in the Specification and the second monomer unit has the structure of formula (II) defined in the Specification. The second polymer includes at least about 60 wt % of a styrene monomer unit; and the third polymer includes at most about 60 wt % of a styrene monomer unit. This disclosure also relates to using the composition to form a free-standing film, a laminate, a prepreg, and/or a printed circuit board.

Abstract: An immunotherapy method of targeted chemokine and cytokine delivery by a mesenchymal stem cell that expresses an immunostimulatory factor. The immunostimulatory factor is selected from the following group: CCL3, CCL19, CCL21, XCL1, CXCL9, OX40L, 4-1BBL, GITRL, CD40L, or a combination thereof. At a tumor site, the mesenchymal stem cell specifically attracts and activates an immune cell that kills tumor tissue, and the mesenchymal stem cell has a synergistic effect with chemokines and/or cytokines, having an immunotherapeutic effect with higher efficiency and few side effects, and a significantly enhanced ability to kill tumor tissue, especially colorectal cancer cells.

Abstract: A method for monitoring a running state of a distributed system, an electronic device, and a storage medium are provided. The method comprises: acquiring a first calling key-value pair sent by a first component in a distributed system (101); and determining the current running state of the first component according to a first keyword value, and historical calling data corresponding to a first key code value in a preset database (102).

Abstract: A device for accurately recording and presenting an electrocardiograph (ECG) signal collected by the non-optimal dry metal electrodes of wearable devices includes a first collecting module, a filtering module, a second collecting module, and a controlling module. The first collecting module collects a first ECG signal which is filtered to obtain a high frequency ECG signal and a low frequency ECG signal. The second collecting module collects the high frequency ECG signal and the low frequency ECG signal. The controlling module performs combination processing on the high frequency ECG signal and the low frequency ECG signal, then outputting an effective and accurate ECG signal. The present disclosure also provides a method for detecting and presenting an accurate electrocardiograph signal obtained by a wearable device.

Abstract: The present disclosure relates to the field of virology. In particular, the disclosure teaches methods of detecting the presence of a respiratory viral infection (e.g. by a coronavirus or influenza virus) in a subject, and methods of treating said respiratory viral infection.

Abstract: The present disclosure provides an effective stress cell for direct measurement of effective stress in saturated soil. The effective stress cell comprises a sensing diaphragm, a porous diaphragm, a connector and a strain sensor. The porous diaphragm allows pore-water to enter the interior space between the sensing diaphragm and the porous diaphragm to provide complete balance of pore-water pressures in the front and back of the sensing diaphragm. Thus, the effective stress cell can directly and accurately measure the effective stress in saturated soil using only one diaphragm at one location without measuring pore-water pressure.

Abstract: The invention discloses a heat storage water dispenser system, it comprises a heat storage tank, an overflow tank and a two-way valve device, the overflow tank is installed on the top of the heat storage tank, the overflow tank is provided with an exhaust port connected with the atmosphere, and the two-way valve device is installed between the heat storage tank and the overflow tank, an exhaust channel is formed between the two-way valve device and the overflow tank; the heat storage tank is provided with an expansion water channel and a hot water outlet channel, one end of the expansion water channel is connected with the heat storage tank, and the other end is connected with the overflow tank.

Abstract: A filter cartridge having a double water-stop function, that comprises: a filter cartridge main body, a rotation body, and a water channel main body. The filter cartridge main body includes: an outer shell body, a filter cartridge, a filter cartridge cover, a first water outlet, a second water outlet, a first compression spring, a second compression spring, a first tight seal ring, a second tight seal ring, a first water input port, a second water input port, a first water outlet channel, and a second water outlet channel. The rotation body includes: a first water channel, a second water channel, a third water channel. The water channel main body includes: a first water input hole, a first water output hole, and a second water output hole.

Abstract: Computer systems, devices, and associated methods of content pattern based automatic document classification are disclosed herein. In one embodiment, a method includes receiving a document and a sequence of words corresponding to a document class having a class label from a network storage. The method also includes determining a longest common subsequence of words between the words in the document and the sequence of words and calculating a similarity percentage between the document and the sequence of words based on the determined longest common subsequence. When the calculated similarity percentage is above a threshold, the class label corresponding to the document class is automatically applied to the received document in the network storage.

Abstract: The present disclosure provides an effective stress cell for direct measurement of effective stress in saturated soil. The effective stress cell comprises a sensing diaphragm, a porous diaphragm, a connector and a strain sensor. The porous diaphragm allows pore-water to enter the interior space between the sensing diaphragm and the porous diaphragm to provide complete balance of pore-water pressures in the front and back of the sensing diaphragm. Thus, the effective stress cell can directly and accurately measure the effective stress in saturated soil using only one diaphragm at one location without measuring pore-water pressure.