Abstract: A method for assessing an effect, such as a treatment, disease, or passage of time on a cellular unit of an organism includes providing a sample including a cellular unit subject to the effect in a supporting medium in a hermetically sealed container. The container is deoxygenated to induce at least one of a predetermined amount of hypoxia and a predetermined rate of oxygen consumption in the medium. Values for variables associated with the medium and/or the cellular unit are determined at each of a plurality of different times. Various combinations of the predetermined amount of hypoxia, the predetermined rate of oxygen consumption, the values for the variables associated with the medium and/or cellular unit, and the times and then correlated to generate a multi-dimensional surface. This surface is compared with another surface correlating corresponding values relating to another cellular unit such as one not subject to the effect.

Abstract: A method for assessing an effect, such as a treatment, disease, or passage of time on a cellular unit of an organism includes providing a sample including a cellular unit subject to the effect in a supporting medium in a hermetically sealed container. The container is deoxygenated to induce at least one of a predetermined amount of hypoxia and a predetermined rate of oxygen consumption in the medium. Values for variables associated with the medium and/or the cellular unit are determined at each of a plurality of different times. Various combinations of the predetermined amount of hypoxia, the predetermined rate of oxygen consumption, the values for the variables associated with the medium and/or cellular unit, and the times and then correlated to generate a multi-dimensional surface. This surface is compared with another surface correlating corresponding values relating to another cellular unit such as one not subject to the effect.

Abstract: An image encoding control method and device, a storage medium, and an unmanned aerial vehicle (UAV) are disclosed. The method includes: obtaining a frame of image data from an image sequence; encoding the image data for a first time, and obtaining first encoding quality of the image data after the first time encoding; and iteratively encoding the image data based on the first encoding quality and preset target encoding quality. Thus, a frame of image data in an image sequence is obtained and then encoded for the first time, first encoding quality is obtained, and encoding the image data is further controlled based on the first encoding quality and target encoding quality. This effectively solving the problem of a waste of bit rate resources or a shortage of bit rate resources, ensuring encoding quality of images, and meeting requirements of users. Further, the practicability of the method is improved.

Abstract: An image transmission method includes receiving region of interest (ROI) information sent by a display device, performing image processing on a captured image according to the ROI information to intercept a partial image indicated by the ROI information from the captured image, and sending the partial image to the display device.

Abstract: A method and head-mounted display glasses for controlling an unmanned aerial vehicle (UAV) are provided. A movable mark is displayed, and input information of a user is acquired. According to the input information, the movable mark is moved to control the UAV.

Abstract: A multi-stage compressor is disclosed, which comprises: two motion converters driven by one driving shaft and converting a rotary motion to a straight-line reciprocating motion; first and second pistons (62) connected to one of the motion converters in opposite directions and moving reciprocatively in a straight line; and third and fourth pistons (72) connected to the other one of the motion converters in opposite directions, arranged at a predetermined angle with respect to the first and second pistons (62), and moving reciprocatively in a straight line, and which is characterized in that at least two of the four pistons operate for first-stage compression and at least one of the others operate for second-stage compression.

Abstract: A yoke structure for a compressor is disclosed, which is applied to a scotch yoke type reciprocating compressor. The yoke structure comprises a crankshaft (10); a crankpin (20) connected to the crankshaft (10), to rotate along a predetermined round trajectory which has the crankshaft at its pivot, as the crankshaft rotates; a frame having a pair of slide ways (41) formed on two parallel inner faces of the frame (40) opposing each other, one or more pistons (30) to be fixed to outer faces of the frame outside the slide (41) ways; a sliding block (30) positioned between the pair of slide ways (41) and rotatably connected to the crankpin (20); and a pair of self-lubricating materials (32) attached to the sliding block (30) so as to be in contact with opposing faces of the slide ways (41).

Abstract: A refrigeration system comprising: a heat absorption unit (300) for absorbing heat from a peripheral portion to fluid under a predetermined constant pressure; a first compression unit (410) for sucking the fluid discharged from the heat absorption unit (300) and compressing; an intermediate cooling unit (500) for cooling the fluid compressed in the first compression unit (410); a second compression unit (420) for re-compressing the fluid discharged from the intermediate cooling unit (500); a heat radiating unit (100) for radiating heat from the fluid compressed in the second compression unit (420) and discharged to a peripheral portion under a predetermined constant pressure; an expansion unit (200) for lowering pressure of the fluid which passed through the heat radiating unit (100) by an adiabatic expansion and driving the first and second compression units by work generated from the expansion; and a cooling flow path (510) for passing the fluid discharged from the expansion unit (200) through the intermedi

Abstract: A multi-stage compressor is disclosed, which comprises: two motion converters driven by one driving shaft and converting a rotary motion to a straight-line reciprocating motion; first and second pistons (62) connected to one of the motion converters in opposite directions and moving reciprocatively in a straight line; and third and fourth pistons (72) connected to the other one of the motion converters in opposite directions, arranged at a predetermined angle with respect to the first and second pistons (62), and moving reciprocatively in a straight line, and which is characterized in that at least two of the four pistons operate for first-stage compression and at least one of the others operate for second-stage compression.

Abstract: A yoke structure for a compressor is disclosed, which is applied to a scotch yoke type reciprocating compressor. The yoke structure comprises a crankshaft (10); a crankpin (20) connected to the crankshaft (10), to rotate along a predetermined round trajectory which has the crankshaft at its pivot, as the crankshaft rotates; a frame having a pair of slide ways (41) formed on two parallel inner faces of the frame (40) opposing each other, one or more pistons (30) to be fixed to outer faces of the frame outside the slide (41) ways; a sliding block (30) positioned between the pair of slide ways (41) and rotatably connected to the crankpin (20); and a pair of self-lubricating materials (32) attached to the sliding block (30) so as to be in contact with opposing faces of the slide ways (41).