Abstract: A control method for preparing crop nutrient solution, applied in a regulating device, obtains growth data of crops, and determines a growth state of the crops according to the growth data of the crops. The proportion of the nutrient solution required by the crops is determined according to the growth states of the crops, and the culture solution is adjusted according to the proportion of the nutrient solution. After a preset time period, updated growth state of the crops is determined. When the culture solution does not meet the proportion of the nutrient solution corresponding to the updated growth state, the culture solution is adjusted again until the culture solution meet the proportion of the nutrient solution corresponding to the growth state of the crops.

Abstract: A rear derailleur is provided, including: a base, configured to be mounted to a bicycle; a linkage assembly, connected to the base; a movable member, rotatably connected to the linkage assembly; a chain guide, rotatably connected to the movable member by an axle assembly; a biasing member, located between the movable member and the chain guide, positioned to the movable member and the chain guide; a resistance mechanism, connected to the movable member; and a cap member, covering the resistance mechanism and driving the resistance mechanism, rotatably positionable in either of a first position and a second position, wherein when the cap member is positioned in the first position, the resistance mechanism provides a first resistance, and when the cap member is positioned in the second position, the resistance mechanism provides a second resistance which is different from the first resistance.

Abstract: A rear derailleur is provided, including: a base, configured to be mounted to a bicycle; a linkage assembly, connected to the base; a movable member, rotatably connected to the linkage assembly; a chain guide, rotatably connected to the movable member by an axle assembly; a biasing member, located between the movable member and the chain guide, positioned to the movable member and the chain guide; a resistance mechanism, connected to the movable member; and a cap member, covering the resistance mechanism and driving the resistance mechanism, rotatably positionable in either of a first position and a second position, wherein when the cap member is positioned in the first position, the resistance mechanism provides a first resistance, and when the cap member is positioned in the second position, the resistance mechanism provides a second resistance which is different from the first resistance.

Abstract: A rear derailleur is provided, including: a base, configured to be mounted to a bicycle; a movable member, movably disposed on the base; a shaft, rotatably connected to the movable member; a chain guide, connected to the shaft; a biasing member, disposed between the chain guide and the movable member; a resistance mechanism, connected to the movable member to apply frictional resistance to the shaft.

Abstract: graphite composite laminated heat-dissipating structure and a manufacturing method thereof are disclosed. The structure includes a metal substrate and a graphite heat-dissipating layer. The metal substrate has a first surface having a roughness ranging between 0.01 and 10 ?m. The graphite heat-dissipating layer is composed of pure graphite and is directly formed on the first surface by means of physical vapor deposition using a carbon sputtering target. The graphite heat-dissipating layer has a thickness ranging between 0.05 and 2 ?m. The manufacturing method includes S1: directly forming a graphite heat-dissipating layer on a first surface of a metal substrate by means of physical vapor deposition using a carbon sputtering target after the metal substrate has received plasma treatment or infrared heating; and S2: stopping the physical vapor deposition when the graphite heat-dissipating layer has a thickness ranging between 0.05 and 2 ?m.

Abstract: A plant growth monitoring method includes sensing growth data of a plant, determining reference data of the growth data, determining a first effective range of an N number of parameters of the reference data, determining a second effecting range of each parameter, and obtaining standard values of the N number of parameters in each of T growth periods.

Abstract: A bicycle rear derailleur is provided, including a mounting portion; a linkage mechanism, pivoted to the mounting portion and having an extension portion having a cable fixing point and being located at an inner position relative to an outer side of the linkage mechanism; a guiding mechanism, pivoted to the linkage mechanism and being rotatable about an axis, the guiding mechanism including a first pulley defining a pulley plane and a second pulley, an extension line which is perpendicular to the axis and an axial extension line of the second pulley being defined as a first reference line; wherein when the bicycle rear derailleur is located on an initial position, the cable fixing point is between the first reference line and the mounting portion, and the cable fixing point dose not cross the pulley plane during gearshift of the bicycle rear derailleur relative to rear sprockets.

Abstract: A bicycle rear derailleur is provided, including a mounting portion; a linkage mechanism, pivoted to the mounting portion and having an extension portion having a cable fixing point and being located at an inner position relative to an outer side of the linkage mechanism; a guiding mechanism, pivoted to the linkage mechanism and being rotatable about an axis, the guiding mechanism including a first pulley defining a pulley plane and a second pulley, an extension line which is perpendicular to the axis and an axial extension line of the second pulley being defined as a first reference line; wherein when the bicycle rear derailleur is located on an initial position, the cable fixing point is between the first reference line and the mounting portion, and the cable fixing point dose not cross the pulley plane during gearshift of the bicycle rear derailleur relative to rear sprockets.

Abstract: A biosensor test strip made in the process without the use of an etchant and its etchant-free fabrication method. A patterned stripping layer is formed onto a substrate and is comprised of a masking region and a hollow region, wherein the hollow region defines a wiring pattern. A metallic film is sputtered onto the masking region of the patterned stripping layer as well as the substrate below the hollow region. The patterned stripping layer is washed off by a non-etchant liquid to remove the masking region and the metallic film thereon. The metallic film on the substrate is remained to form a detection line corresponding to the wiring pattern. A pad layer and a reacting enzyme are formed respectively on the detection line and the substrate. The present invention employs the non-etchant liquid to conduct a removing process so as to form the detection line.

Abstract: A modular rolling axis apparatus for installing in a computer peripheral device such as a keyboard, a mouse device, a joystick, a remote controller, a mobile phone, a notebook computer, or a handheld computer or the like consists of a circuit board, two support elements mounting to the circuit board and a rotary rolling axis located between the two support elements. When the rolling axis is driven and depressed, a signal for processing execution or opening of a selected function is output, and processes for execution or opening of the selected function are performed for switching or scrolling viewing pages on the window.

Abstract: An improved directional switch mainly utilizes a piece of elastic member to form a single elastic structure to couple with a conductive member to construct a small size directional switch that is easy to assemble. The structure includes a base block coupling with a lid, and a control unit and the conductive member located in the bas block. The base block has contact terminals and a common contact terminal located at the bottom thereof. Applying a force on the control unit to depress the conductive member, the conductive member will be moved downwards to connect one contact terminal and the common contact terminal to output a directional signal.