Abstract: A random copolymer, a preparation method of the random copolymer, a drilling fluid containing the random copolymer. The random copolymer contains structural unit (A) represented by formula (1), structural unit (B) represented by formula (2), structural unit (C) represented by formula (3), and structural unit (D) represented by formula (4) or (5): wherein X is halogen. When the random copolymer is used as a filter loss reducer in a high-calcium drilling fluid, the filter loss of the high-calcium drilling fluid can be reduced.

Abstract: Systems and methods for compressive image sensor techniques based on sparse measurement matrices are disclosed. A method to perform compressive sensing (CS) measurement operations for image sensors limits pixel summation to be within neighboring pixels and hence dramatically simplifies CS image sensor circuits and reduces their power consumption while providing better image quality compared to conventional random measurement matrix based methods. A sparse measurement matrix is applied to pixel data to generate a desired number of summation groups, each summation group consisting of outputs from an equal number of pixel cells. Each pair of summation groups contains the same number of shared outputs from pixel cells. From the summation groups, an image captured by the pixel cells is recovered.

Abstract: A control method of a double-drum washing machine, having a first washing drum and a second washing drum. Whether the heating time required by the first drum is overlong is judged before the first drum performs heating. If yes, the second drum executes the heating, or dewatering, or drying processes. If not, the following steps are performed: judging whether the second drum performs heating; if yes, judging whether the remaining heating time of the second washing drum is greater than T0; if the judgment result is yes, executing the alternate heating program that the first drum and the second washing drum perform heating alternately, and if the judgment result is no, executing the ordered heating program that the second drum performs heating firstly, and then the first drum performs heating, wherein T0 is a time value for judging whether the heating of the second drum is about to finish or not.

Abstract: Disclosed is a water draining method of a washing machine. The water draining method comprises the following steps in order: a draining step, controlling a water drainage pump (4) to work intermittently until the water level inside an outer drum (2) reaches a set drainage water level; and a spin-drying step, controlling the electric motor to drive the inner drum to rotate to remove water, while also controlling the water drainage pump (4) to work intermittently.

Abstract: The present invention relates to technical fields of organic chemistry and pharmaceutical chemistry, specifically to water-soluble rapamycin derivatives modified with glutathione. More specifically, the present invention discloses a compound of formula I and the preparation method thereof, wherein R1 and R2 are as defined in the description. The compound of formula I can be used in inducing immunosuppression and in the treatment of diseases such as transplant rejection and solid tumor, etc.

Abstract: The present invention relates to a novel touch type electronic candle lamp which comprises a light-transmitting waxen casing and a base embedded in the lower end face of the casing. The casing adheres to the base, a luminous body is installed in the casing, the upper end face of the casing is provided with a touch control piece for touching and switching on or switching off the luminous body; the touch control piece is connected with a touch chip; the base is provided with a battery compartment and a control key; the luminous body is connected with the touch chip, the battery compartment and the control key through a line, and the touch control piece is in a wick shape.

Abstract: An air conditioning apparatus includes a refrigerant tank, a cryogenic liquid pump, a condensing evaporator, a compressor, a user system, a throttle valve, a first reversing valve, and a second reversing valve. It operates in two modes. In the first mode, the refrigerant in the refrigerant tank flows sequentially from the refrigerant tank, the cryogenic liquid pump, the condensing evaporator, the first reversing valve, the compressor, the second reversing valve, the user system, the first reversing valve, the second reversing valve, the condensing evaporator, the throttle valve, and back to the refrigerant tank. In the second mode, refrigerant in the refrigerant tank flows sequentially from the refrigerant tank, the cryogenic liquid pump, the condensing evaporator, the first reversing valve, the second reversing valve, the user system, the first reversing valve, the compressor, the second reversing valve, the condensing evaporator, the throttle valve, and back to the refrigerant tank.

Abstract: A cascade cold dynamic cycle refrigeration apparatus makes up cold energy with a cryogenic liquid refrigerant by boosting with a dual-stage liquid circulating pump. The temperature of the refrigerant is increased via the cold regenerator before it enters the cold consuming apparatus to provide cold and becomes a gaseous refrigerant. The gaseous refrigerant then flows through the expander to expand and generates work by reducing pressure and temperature. The gaseous refrigerant is condensed and returns to the refrigerant tank via the cold regenerator or/and a throttle valve.

Abstract: Provided are a multi-drum washing machine and a control method therefor, and the multi-drum washing machine includes: at least two independent washing drums, a control panel an integrated circuit (IC) controller and a driving circuit board; the control panel has a plurality of input control elements and a plurality of output display elements the input control elements are configured for inputting laundry parameters; the output display elements are configured for displaying states in a washing process; and the IC controller and the driving circuit board are connected to the control panel and control an operation of the washing drums.

Abstract: A first network device includes a processor configured to analyze a data stream entering a network on which the first network device is located to obtain a traffic characteristic of a target data stream, and advertise a Flow Specification (FlowSpec) route, where the FlowSpec route carries redirect indication information, the redirect indication information includes identification information, the identification information is used to uniquely identify a first virtual private network (VPN) instance in a second network device, the redirect indication information instructing to redirect the data stream including the traffic characteristic of the target data stream to the first VPN instance, the second network device is an edge device of a service provider network accessed by the network, and the first VPN instance is a target VPN instance to which the target data stream is redirected in the second network device.

Abstract: Disclosed techniques relate to identifying subjects in digital images. In various embodiments, digital image(s) that depict a subject in an area may be acquired. Portion(s) of the digital image(s) that depict a face of the subject may be detected as detected face image(s). Features of each of the detected face image(s) may be compared with features of each of a set of subject reference templates associated with a given subject in a subject reference database. Based on the comparing, a subject reference template may be selected from the set of subject reference templates associated with the given subject. Similarity measure(s) may then be determined between a given detected face image of the detected face image(s) and the selected subject reference template. An identity of the subject may be determined based on the similarity measure(s).

Abstract: The present invention relates to a method and apparatus for evaluating hardware based on a cloud server, the method comprising: detecting information on hardware components of a computer terminal; determining the type of the computer terminal based on information on the hardware components of the computer terminal; and scoring the hardware components of the computer terminal based on information on the hardware components and the type of the computer terminal. In accordance with embodiments of the present invention, the hardware components are scored based on the type of the computer terminal, and the relevant database are timely updated to ensure the accuracy of the hardware scoring.

Abstract: A sofa waist propping device includes a frame and a waist adjusting mechanism, the frame being fixed on a sofa or a seat, the waist adjusting mechanism comprising a backrest and a first driving member rotatably connected to the frame respectively, the first driving member being rotatably connected to the backrest and driving the backrest to rotate around the frame. Since the first driving member is rotatably connected to the backrest and drives the backrest to rotate around a fixing member, the position of the backrest is adjusted, with a structure simple and stable and comfortableness increased.

Abstract: The present invention discloses a sofa pillow driving device, which comprises a side plate mounting member, a headrest mounting member, and a driving device, the sofa pillow driving device further comprises a rotation limit member and an elastic member, the rotation limit member being rotatably connected to the side plate mounting member, the headrest mounting member being rotatably connected to the rotation limit member, one end of the elastic member being connected to the headrest mounting member and the other end being connected to the rotation limit member, one end of the driving device being rotatably connected to the rotation limit member and the other end being rotatably connected to a backrest wood frame, the driving device drives the headrest mounting member to rotate by the rotation limit member.

Abstract: A multi-drum washing machine comprises at least two washing devices and a drainage pump communicating with the outside. Between each washing device and the drainage pump is respectively provided with a drainage valve. Each washing device of the multi-drum washing machine drains water sequentially. When a washing device completes the drainage, first, the drainage valve of the washing machine is closed, and then the drainage pump is turned off. It is detected whether or not other washing device requires drainage, and if yes, first the drainage valve of the washing device requiring drainage is opened, and then the drainage pump is turned on for the washing device draining water, and if no, the drainage of the multi-drum washing machine ends. The disclosure controls sequential drainage of each washing device, reducing vibration of a washing machine in the drainage process.

Abstract: This invention is about an air separation apparatus to produce oxygen and nitrogen through isobaric separation, which is based on the Rankine cycle system of similar thermal energy power circulation apparatus at cryogenic side, a liquid pump is used to input work and the cold is made up to the air separation apparatus with refrigerating media, so as to realize the isobaric separation of air to produce nitrogen and oxygen. The air separation apparatus of this invention can save energy by over 30% as compared with the traditional advanced apparatus with the identical refrigerating capacity, and it can also realize centralize gas supply via the air separation apparatus, therefore it constitutes a breakthrough to the traditional air separation technology and refrigeration theory, with substantial economic, social and environmental protection benefits.

Abstract: This invention is about a natural gas isobaric liquefaction apparatus, which is based on the Rankine cycle system of similar thermal energy power circulation apparatus at cryogenic side, a cryogenic liquid pump is used to input power and the refrigerant makes up cold to the natural gas liquefying apparatus, so as to realize the isobaric liquefaction of natural gas. The natural gas liquefying apparatus of this invention can save energy by over 30% as compared with the traditional advanced apparatus with the identical refrigerating capacity, therefore it constitutes a breakthrough to the traditional natural gas liquefaction technology, with substantial economic, social and environmental protection benefits.

Abstract: Methods, apparatus, application specific integrated circuits (ASIC)s and other embodiments associated with analyzing a cancerous prostate using group-sparse non-negative canonical correlation analysis (GNCCA) with a variable importance in the projections (VIP) score are described. One example apparatus includes a set of logics that acquires a set of features from a plurality of feature views of a region of tissue demonstrating cancerous pathology, produces a ranked set of discriminative features using GNCCA with the VIP score, optimizes computation of the GNCCA using a vector-block coordinate descent (BCD) approach, and provides a prostate cancer (CaP) grade or a biochemical recurrence (BcR) score based on the set of discriminative features. Embodiments of example apparatus may generate and display the CaP grade, BcR score, or set of discriminative features.

Abstract: The present invention discloses a sofa pillow driving device, which comprises a side plate mounting member, a headrest mounting member, and a driving device, the sofa pillow driving device further comprises a rotation limit member and an elastic member, the rotation limit member being rotatably connected to the side plate mounting member, the headrest mounting member being rotatably connected to the rotation limit member, one end of the elastic member being connected to the headrest mounting member and the other end being connected to the rotation limit member, one end of the driving device being rotatably connected to the rotation limit member and the other end being rotatably connected to a backrest wood frame, the driving device drives the headrest mounting member to rotate by the rotation limit member.

Abstract: The present invention discloses a sofa waist proping device comprising a frame and a waist adjusting mechanism, the frame being fixed on a sofa or a seat, the waist adjusting mechanism comprising a backrest and a first driving member rotatably connected to the frame respectively, the first driving member being rotatably connected to the backrest and driving the backrest to rotate around the frame oppositely. Since the first driving member is rotatably connected to the backrest and drives the backrest to rotate around a fixing member, the position of the backrest is adjusted, with a structure simple and stable and comfortableness increased.