Abstract: A cleaning attachment and rotary tool for cleaning are provided. A cleaning attachment includes a housing, a plurality of bristles, and a drive shaft extending from the housing in an axial direction, the drive shaft being coupled to the housing such that rotation of the drive shaft causes rotation of the housing. The housing includes a reservoir, a valve for dispensing the fluid from the reservoir, and at least one resilient element surrounding an axis defined by the drive shaft. Translation of the drive shaft along the axial direction causes compression of the resilient element, and compression of the resilient element causes the valve to open to dispense fluid from the reservoir. A rotary tool for cleaning includes the cleaning attachment and a rotary tool having a motor, power source, and a chuck configured to receive the drive shaft of the cleaning attachment.

Abstract: A method of measuring optical properties of a specimen includes generating illumination light at a plurality of illumination wavelengths and, for each of the plurality of illumination wavelengths, directing the illumination light to impinge on the specimen, collecting sample light passing through the specimen, and detecting the collected sample light using a polarization state analyzer to form a set of polarization channels. The method also includes receiving a calibration tensor, converting the set of polarization channels for each of the illumination wavelengths into Stokes parameter maps using the calibration tensor, denoising the Stokes parameter maps, and deconvolving the Stokes parameter maps to provide density, anisotropy, and orientation measurements of the specimen. The method can multiplex intrinsic density, anisotropy, and orientation measurements of the specimen and density, anisotropy, and orientation measurements of labeled fluorescent molecules.

Abstract: A master/slave system conforming to an I2C communication protocol includes a master, an I2C bus, a power supply module, an independent slave and a plurality of dependent slaves. The master is configured to generate a data signal and a clock signal, the data signal including address information and a plurality of control instructions. The power supply module is configured to provide constant voltage power in a high potential state to the I2C bus. The independent slave is provided with a device address and is configured to receive the data signal and the clock signal according to the device address, the address information and the control instructions. The plurality of dependent slaves are connected in series with one another through a plurality of buses and are electrically connected to the independent slave, the potential state of each bus in idle is different from that of the I2C bus in idle.

Abstract: The present disclosure is directed to a lens system having a LED, a first lens and a second lens that are aligned along a central optical axis, a housing, and an aperture positioned within the housing, which enables the lens system to provide an illuminated plane having a selected illumination profile in a region of interest, namely an illumination profile that is a uniform or flat field. The present first and second lenses are selectively paired and positioned in the housing to project a light output that is parallel or non-divergent. In another aspect, the present disclosure is directed to a method that generates light from a light source that passes through a first lens and then a second lens, and determines a location of an illuminated plane that is positioned a specified distance from a proximal surface of the second lens to produce a selected illumination profile.

Abstract: Two types of blue light blocking contact lenses are provided and are formed by curing different compositions. The first composition includes a blue light blocking component formed by mixing or reacting a first hydrophilic monomer and a yellow dye, a first colored dye component formed by mixing or reacting a second hydrophilic monomer and a first colored dye, at least one third hydrophilic monomer, a crosslinker, and an initiator. The first colored dye includes a green dye, a cyan dye, a blue dye, an orange dye, a red dye, a black dye, or combinations thereof. The second composition includes a blue light blocking component, at least one hydrophilic monomer, a crosslinker, and an initiator. The blue light blocking component is formed by mixing or reacting glycerol monomethacrylate and a yellow dye. Further, methods for preparing the above contact lenses are provided.

Abstract: A virtual machine backup method, performed by a first host, includes: capturing a request to write data from a virtual machine to a hard disk image file, wherein the request includes written data and input and output location information, copying the written data to a temporary storage area, calculating a first key of the written data, storing the first key, the input and output location information into a first resource location structure, pausing an operation of the virtual machine and generating a second resource location structure according to the first resource location structure, the first key and a second key, and outputting a backup data set to a second host according to the second resource location structure, wherein the backup data set includes the second resource location structure and only one of existing data and the written data when the first key and the second key are the same.

Abstract: A computing device is provided, which includes a volatile memory, a non-volatile memory, and a processor. A processor is configured to execute a main virtual machine for: during a detection period, detecting a cold area used by the main virtual machine from the volatile memory and the non-volatile memory; transmitting first data belonging to the cold area in the volatile memory and the non-volatile memory to a backup device; when determining that a first transmission condition is satisfied, transmitting a second data used by the main virtual machine in the volatile memory and the non-volatile memory to the backup device; and when determining that an abnormal event has occurred, notifying the abnormal event to the backup device, so as to execute a backup virtual machine in the backup device according to the first data and the second data.

Abstract: The present invention includes a main device and a backup device. A first backup system element of the main device is used to determine whether a first estimated time is less than a second estimated time. The first estimated time is a time period for directly transmitting pending data. The second estimated time is a time period for transmitting the pending data after the pending data is compressed by a current compression algorithm. If yes, the first backup system element directly transmits the pending data to a second backup system element of the backup device. If not, the first backup system element compresses the pending data by the current compression algorithm, updates the pending data and the current compression algorithm, and re-determines whether the first estimated time is less than the second estimated time. The present invention improves availability of data backup when a network bandwidth is poor.

Abstract: A method of measuring optical properties of a specimen includes generating illumination light at a plurality of illumination wavelengths and, for each of the plurality of illumination wavelengths, directing the illumination light to impinge on the specimen, collecting sample light passing through the specimen, and detecting the collected sample light using a polarization state analyzer to form a set of polarization channels. The method also includes receiving a calibration tensor, converting the set of polarization channels for each of the illumination wavelengths into Stokes parameter maps using the calibration tensor, denoising the Stokes parameter maps, and deconvolving the Stokes parameter maps to provide density, anisotropy, and orientation measurements of the specimen. The method can multiplex intrinsic density, anisotropy, and orientation measurements of the specimen and density, anisotropy, and orientation measurements of labeled fluorescent molecules.

Abstract: A method of measuring optical properties of a specimen, for example, a uniaxial specimen, includes generating a plurality of illumination patterns incident on the specimen and, for each of the plurality of illumination patterns, collecting sample light passing through the specimen and detecting the collected sample light using a polarization state analyzer to form a set of polarization channels. The method also includes receiving a calibration tensor, converting the set of polarization channels for each of the illumination patterns into Stokes parameter maps using the calibration tensor, and deconvolving the Stokes parameter maps to provide volumetric measurement of permittivity tensor of the specimen, specifically, absorption, optical path length, optical anisotropy, and 3D orientation of the specimen.

Abstract: To automatically evaluate the reasonable price of real estate according to the housing data, the present invention discloses a novel intelligent property evaluation system. The system includes the following components: a housing data input system, a pre-processing filter, a feature extractor, a housing price trainer, and a housing price predictor, wherein the housing price predictor further includes a regression model generator and a decision integrator. The pre-processing filter is used to filter unreasonable samples from housing data and integrate synonymous features. The feature extractor is used to choose required variables of housing price model. The housing price trainer generates housing price model which is trained by a great amount of housing data. The housing price predictor then generates a prediction by the trained model. Furthermore, to maintain the accuracy of prediction under the social evolution, the housing price predictor could be regularly or irregularly updated by a rolling-based method.

Abstract: An audio signal processing method is provided. The method separates a left and a right channel audio signal to a center-left and center-right channel audio signals, and a side-left and side-right channel audio signals, and processes the center and side channel audio signals by a Head Related Transfer Function (HRTF) so as to simulate the audio signals into several audio source positions related to a user, then synthesizes the processed audio signals into dual channel audio signals according to the user's hearing characteristics by a frequency compensation process. The invention further provides an audio signal processing apparatus to perform the audio signal processing method.

Abstract: The present application relates to the field of energy storage materials, and particularly, to an electrolytic solution and a battery using the electrolytic solution. The electrolytic solution of the present application contains an additive, the additive including a multi-cyano compound represented by formula (I). The multi-cyano compound of the present application has a stronger complexation with a transition metal on the surface of a positive electrode material, and therefore a protective film can be formed on the surface of the positive electrode material, and the dissolution of the transition metal is effectively suppressed; the surface activity of the positive electrode material is reduced, thereby suppressing side reactions, such as the decomposition of the electrolytic solution on the surface of the positive electrode material; and the cycle performance and storage performance of a battery under wide range of working voltage and wide range of operating temperature conditions are thus improved.

Abstract: A method for manufacturing a semiconductor device package includes: (1) providing a first encapsulation layer; (2) disposing an adhesive layer on the first encapsulation layer; (3) disposing a first die on the adhesive layer; and (4) forming a second encapsulation layer covering the first die, the adhesive layer, and the first encapsulation layer.

Abstract: The present disclosure relates to the field of energy storage materials, and particularly, to an electrolyte and a battery using the electrolyte. The electrolyte contains an additive selected from a group consisting of multi-cyano six-membered N-heterocyclic compounds represented by Formula I-1, Formula I-2 and Formula I-3, and combinations thereof. The addition of the multi-cyano six-membered N-heterocyclic compound as an additive in the electrolyte of the present disclosure can effectively passivate surface activity of the positive electrode material and inhibit oxidation of the electrolyte. The battery using the electrolyte according the present disclosure has good cycle performance at high temperature and high voltage and good storage performance, while gas production of the battery is reduced.

Abstract: The present application relates to the field of energy storage materials, and particularly, to an electrolytic solution and a battery using the electrolytic solution. The electrolytic solution of the present application contains an additive, the additive including a multi-cyano compound represented by formula (I). The multi-cyano compound of the present application has a stronger complexation with a transition metal on the surface of a positive electrode material, and therefore a protective film can be formed on the surface of the positive electrode material, and the dissolution of the transition metal is effectively suppressed; the surface activity of the positive electrode material is reduced, thereby suppressing side reactions, such as the decomposition of the electrolytic solution on the surface of the positive electrode material; and the cycle performance and storage performance of a battery under wide range of working voltage and wide range of operating temperature conditions are thus improved.