31results about How to "Improve transport performance" patented technology

A duplex image reading apparatus has a transportation path for transporting a sheet original to a reading region by an original transporting device, and first and second reading devices placed corresponding to respective transportation sides of the sheet original in the reading region of the transportation path, and is constructed in such structure that each of the first and second reading devices is of such a configuration that a color reference portion used as a color reference for reading is opposed to a reading portion while the color reference portion and the reading portion are placed on two sides with the transportation sides of the sheet original in between, wherein the first and second reading devices are arranged so that either one of the reading portion and the color reference portion is supported so as to be movable in a direction substantially perpendicular to an image reading surface of the reading portion.

A control unit of a lawn mower performs switching control for switching operation between a first control mode and a second mode. In the first control mode, during rotation of an engine at a first reference rotation speed, in the case where a change amount of rotation speed of the engine per unit time has exceeded a reference speed change amount, the rotation speed is maintained at a second reference rotation speed, and an flap angle is increased. In the second control mode, during rotation of the engine at a second reference rotation speed, in the case where an opening angle of a throttle valve has fallen below a reference opening angle, the rotation speed is maintained at the first reference rotation speed, and the flap angle is decreased. The second reference rotation speed is higher than the first reference rotation speed.

The present invention discloses a liquid crystal display and a backframe for a liquid crystal display. The backframe is configured by interlinked linkages such that the backframe can be freezed in a fully extended position in use, or be collapsible when not in use in a way that the overall dimension of the collapsible backframe is smaller than the fully extended backframe. The backframe can be switched from a fully extended position under normal use, or a collapsible position under a transportation or storage. The collapsible position occupies less volumetric weight as compared to the fully extended position so as to reduce the volumetric weight when the backframe is in transportation and storage. As a result, the performance of the transportation and storage can be therefore increased, while the cost is reduced.

A very long wave infrared detector structure based on antimonide superlattices comprises the following structures from bottom to top: a substrate, a buffer layer, a very long wave band absorption layer, a medium long wave band barrier layer, a very long wave band ohmic contact layer and a top cover layer. The buffer layer is arranged on the substrate in an epitaxial manner. The antimonide superlattice very long wave infrared detector provided by the invention has good carrier transport performance. According to the invention, homotype junctions and segmented doping are introduced, and the superlattice structure, the doping concentration and the thickness of each region are regulated and controlled to obtain the infrared detector structure with high comprehensive detection rate.

The invention provides a bridge crane positioning and anti-swinging method based on on-line track planning. According to traditional on-line track planning, a constructed lyapunov function is only provided with a swinging angle control amount and has no displacement feedback, and a designed controller is coupled with less anti-swinging information. According to a control algorithm provided by themethod, under the condition that the number of adjusting parameters is unchanged, the displacement feedback is increased, and more swinging angle influence factors are coupled; and off-line iterativeoptimization is not needed, the transport performance of a bridge crane is improved, on-line rapid positioning and anti-swinging are realized, and the convenience of on-line parameter adjusting and the rapidity of response are achieved. Specifically, the method has the characteristics that a smooth positioning track is taken as the basis, the dynamic coupling relation between trolley moving and load swinging is utilized, an anti-swinging link which does not influence positioning is introduced, a positioning and anti-swinging track is constructed, the off-line iteration optimization is not needed, on-line track planning of a bridge crane is realized, the requirements for accurate positioning and load anti-swinging of a trolley are taken into consideration, the setting frequency and difficulty of the parameters are reduced, and the response speed is increased.

The invention relates to a preparation method of a Bi12SiO20-Bi2O2SiO3/rGO photocatalyst, which utilizes the high conductivity and high specific surface area of graphene oxide (rGO) to load Bi12SiO20-Bi2O2SiO3 composite powder on the graphene oxide to promote the separation of photo-induced electron-hole pairs, and the obtained product has high specific surface area, can effectively adsorb organicsolvents, is easy to recover and does not generate secondary pollution. The production process is simple, equipment is simple, and the period is short.

The invention discloses a flower-like multilevel structure zinc oxide support framework, and a preparation method and application thereof. The support framework is a multilevel structure zinc oxide material which grows on a conducting substrate material in situ. The shape of the multilevel structure zinc oxide material is a flower-like multilevel structure composed of a dendriform zinc oxide nano linear array. The dendriform zinc oxide nano linear array is a monocrystalline zinc oxide nano linear array material with a wurtzite crystalline phase structure, which grows in different growth directions accroding to the [001] crystal orientation. The support framework can be used for preparing a composite silicon-base lithium battery negative pole material; and the composite silicon-base lithium battery negative pole material is composed of the support framework, and a metal nickel layer and an amorphous silicon layer which are sequentially coated on the support framework. The flower-like multilevel structure zinc oxide support framework disclosed by the invention has large specific area and has favorable structural stability under multiplied charging/discharging working conditions. The composite silicon-base lithium battery negative pole material prepared from the flower-like multilevel structure zinc oxide support framework has favorable multiplied charging/discharging properties.

A compound including a benzimidazole ring structure, represented by general formula (1).

(In formula (1), X₁ and X₂ may be the same or different and each represent a specific carbon atom or a nitrogen atom, Ar represents a specific group, R₁ and R₂ may be the same or different and each represent a specific group, and m is an integer of 0-4.)

The invention provides a tapered guide cylinder. A supporting frame and a motor connection plate are fixed to a base. A fixed sleeve is fixedly connected with the base through the supporting frame. A fixed sleeve is sleeved with a rotary sleeve, a toothed arc is arranged on the rotary sleeve, and a motor is arranged on the motor connection plate. The output end of the motor is connected with a gear which is meshed with the toothed arc, six tapered skewed grooves are evenly formed in the rotary sleeve, and six round holes corresponding to the six tapered skewed grooves are formed in the fixed sleeve. Each tapered unit comprises a tapered skewed block and a tapered arc plate which are connected mutually. The number of the tapered units is six. Each tapered skewed block penetrates through the corresponding tapered skewed groove and the corresponding round hole. The tapered arc plates are located in the fixed sleeve and form a cylinder structure. Each tapered skewed block is provided with an arc plate reset spring. The rotary sleeve is provided with a fixed spring connection plate. A rotary sleeve reset spring is arranged between each spring connection plate and the supporting frame. The tapered guide cylinder is particularly suitable for guide transportation of cylindrical objects of different radiuses.

The invention provides a one-way carrier photodetector and a preparation method thereof. The uni-traveling carrier optical detector structure comprises an AlN substrate; the first metal bonding pad, the second metal bonding pad and the third metal bonding pad are located on the upper surface of the substrate; the first N-type electrode is positioned on the upper surface of the first metal bonding pad; the second N-type electrode is positioned on the upper surface of the third metal bonding pad; the P-type electrode is positioned on the upper surface of the second metal bonding pad; the P-type contact layer is positioned on the upper surface of the P-type electrode; the electron blocking layer is positioned on the upper surface of the P-type contact layer; the collecting layer is positioned on the upper surface of the electron blocking layer; the absorbing layer is positioned on the upper surface of the collecting layer; the N-type contact layer is positioned on the upper surfaces of the absorption layer, the first N-type electrode and the second N-type electrode; the anti-reflection layer is positioned on the upper surface of the N-type contact layer; and the absorption layer is a p-type gradient doped InGaN layer. The uni-traveling carrier photodetector has high saturation linear output and high response rate.

The invention relates to a solid electrolyte and a preparation method and application thereof, the solid electrolyte is Li7-xPS6-xMx, wherein parameters are as shown in the description. The lithium ion conductivity of the solid electrolyte is relatively high because halogen provides a multi-dimensional channel for lithium ion transmission, the activity space of lithium ions is increased, and the lithium ion conductivity is improved.