Light porous composite wall partition

The wall partition is made of binding agent, auxiliary material, filler and reinforcing substance and structurally features rectangular thin board, a row of central through holes, a concave and a convex step sides and side thickness less than middle one. Its advantages include high compression and bending strengthes, low heat conducting coefficient, resisting water and collision, and sound isolation.

Road surface detection method based on region division, computer equipment and storage medium

The region division-based road surface detection method comprises the steps of driving a detection vehicle to walk on a to-be-detected road surface, and shooting the road surface through a foresight camera in a driving process of the detection vehicle so as to obtain complete image information of the to-be-detected road surface; according to the obtained image information, rasterizing is carried out on a map of a to-be-detected road surface, and the size of one grid can be completely shot by a downward-looking camera at the bottom of a detected vehicle; marking all the road surface grids as an unmarked state after grid division; navigation: identifying the pavement image to obtain gray information in the image, judging whether damage occurs or not according to the gray information, and when the damage occurs, setting the state mark of the pavement grid as a damaged state; when the road surface grid is not damaged, the state of the road surface grid is set to be a flat state; according to ...

Combination of fixed part and electric product

The invention provides an electronic product combination, comprising a portable computer, a peripheral module and a fixing piece. The peripheral module is applicable to the electric connection with the portable computer; the fixing piece is sleeved on the portable computer and is provided with a plurality of hatches; the peripheral module can pass through the hatches to be held in the fixing piece. With the method that the fixing piece holds the peripheral module, users can carry the electronic product combination conveniently and the invention becomes orderly and beautiful.

Portable computer heat radiation rack

A portable computer radiating rack is applicable to support a portable computer, which comprises a base plate, a top plate, a first lateral plate and a second lateral plate. Wherein, the top plate is positioned above the base plate and provided with a bearing hole. The portable computer is arranged into the bearing hole. A specific distance is reserved between a bottom of the portable computer and the base plate. In addition, the first lateral plate and the second lateral plate are respectively connected between the top plate and the base plate. The base plate, the top plate, the first lateral plate and the second lateral plate jointly form a cross ventilation space to eliminate heat generated by the portable computer during operation through the cross ventilation space.

Process for secondary esterification of PTA and BDO esterification products and AA and BDO esterification products for PBAT production

The invention discloses a PTA and BDO esterification product and AA and BDO esterification product secondary esterification process for PBAT production, which comprises the following steps: adding the PTA and BDO esterification product, the AA and BDO esterification product and a composite catalyst into a reaction kettle, and reacting at 240-280 DEG C for 0.5-3 hours; the addition amount of the composite catalyst is 0.5-1wt% of the mass of the PTA and BDO esterification product; before reaction, nitrogen is introduced into the reaction kettle, and vacuumizing replacement is performed. According to the process disclosed by the invention, PTA and BDO esterification products and AA and BDO esterification products can be subjected to one-step polycondensation to generate PBAT molecules with good aromatic polyester and aliphatic polyester chain segment uniformity.

Portable computer device

There is a sort of portable computer device. It is uses for setting a estate attention device to the host computer or the display of the portable computer device, so it shows a attention information, for instance: the time, the addressing estate of e-mail, the estate of the real-time communication program, the conference notice, and so on. When the user plays the computer game in the manner of the full screen using the portable computer device, they are so dedicated to the computer game that they ignore the control of the time of forget the time of conference, they hold the up to date information at any moment.

Chain saw saw blade fixing device

The utility model relates to a chain saw technical field, more specifically relates to a chain saw saw blade fixing device, is applied to chain saw saw blade fixing on the chain saw panel, including spacer, stationary blade and mounting, the spacer surface is provided with first draw -in groove and arch, the stationary blade surface is provided with second draw -in groove and arch, and first draw-in groove and protruding and second draw -in groove and protruding embedding each other, has all seted up the fixed orifices on spacer and the stationary blade, and the mounting passes through the fixed orifices will spacer, stationary blade and chain saw saw blade are fixed on the chain saw panel. The utility model discloses an increase spacer and stationary blade between chain saw saw blade andscrew, made the vibrations of mounting weaken, weakened the not hard up condition of mounting to reduce the emergence of falling the chain condition.

AA and BDO esterification process for PBAT production

The invention discloses an AA and BDO esterification process for PBAT production, which comprises the following steps: adding adipic acid, 1, 4-butanediol and a composite catalyst into a reaction kettle, and reacting at 120-160 DEG C for 1-5 hours; the addition amount of the composite catalyst is 0.2-2wt% of the mass of the adipic acid; before reaction, nitrogen is introduced into the reaction kettle, and vacuumizing replacement is performed. By selecting the composite catalyst and controlling the esterification reaction temperature, reaction time and other reaction conditions, AA and BDO have high esterification rate, the PBA prepolymer with high molecular weight (the average molecular weight can reach 4351 at most) can be obtained, and the whole reaction process is low in reaction temperature, mild in reaction condition and simple to operate.

Tunnel portal illuminating lamp on-off control method and system

The invention discloses a tunnel portal illuminating lamp on-off control method and system. The system comprises an acquisition module, a sorting module, a calculation module and a configuration module. Firstly, an acquisition module predicts time prediction data required for a vehicle to arrive at a tunnel portal from a current position; then, a sorting module sorts all the time prediction data according to the sequence of the time prediction data to obtain a corresponding time sequence; then, the calculation module calculates a time interval between two adjacent pieces of time prediction data in the time sequence; and finally, the configuration module compares each time interval with a preset time threshold value, and configures the switching time of tunnel portal illumination according to a comparison result. Therefore, the tunnel portal illuminating lamp can be controlled to be turned off only when the interval time of the front vehicle and the rear vehicle arriving at the tunnel portal ...

Fertilizing formula and fertilizing method for pitaya

The invention relates to the technical field of fruit tree fertilization, in particular to a pitaya fertilization formula and a fertilization method. The fertilizer application formula comprises 11 to 19 kg/mu of N, 11 to 18 kg/mu of P2O5, 6 to 46 kg/mu of K2O, 4.7 to 7.3 kg/mu of CaO, 3 to 5.5 kg/mu of MgO and 1.5 to 2 kg/mu of polyglutamic acid. Macroelements and medium elements in the fertilizer are reasonably regulated and controlled, CaO and MgO are supplemented, a proper amount of polyglutamic acid is matched, the fertilization formula suitable for the pitaya is obtained, the fertilizer is especially suitable for fertilization of the pitaya in the flowering and fruiting period, the nutrient utilization rate of nitrogenous fertilizer, phosphate fertilizer and potash fertilizer can be increased, and the yield of the pitaya is increased. Therefore, the nutrient input is reduced while the yield is increased, and the fertilization effect and the economic benefit are further improved.

Portable computer heat radiation rack

Method of industrial production of lactic acid by employing molecular distillation technology

The invention discloses a method of industrial production of lactic acid by employing a molecular distillation technology. The method comprises the following steps of: (A) decoloring material liquid obtained after acidolysis filtration of lactic acid fermentation liquid with active carbon, (B) performing ion exchange on the decolored material liquid, (C) performing falling film evaporation on the material liquid after the ion exchange, (D) performing thin film evaporation on a lactic acid material obtained after the falling film evaporation to allow the mass fraction of water in the material to be less than or equal 2%, and (E) performing molecular distillation on the lactic acid material obtained after the thin film evaporation to form fine lactic acid, namely the target product. Lactic acid produced by the method meets the high-purity requirements and can be directly used for preparing polylactic acid.

Electronic product accommodation combination and its accommodation method

A kind of electronic product shrinkage method and its method and the method concludes the follow steps. First, offers mouse which concludes shell and the transmission line connecting outside of the shell. Second, offers mouse cushion which is suited to carrier the mouse. The mouse cushion has an open-end and the transmission line crosses the open-end while the shell of mouse and one end of the transmission line are located the two sides of the mouse cushion individually. Third, curve the mouse cushion in order to cover the mouse and make the transmission line enwind the outside of mouse cushion so the optic mouse and the mouse cushion are contracted together perfectly.

Portable computer integrating game direction and functional key

A kind of portable type computer adjusting the game direction and the function keys concludes that: main frame, indicator, game direction key, and game key combination. The game direction key and game key combination are layout the left-right sides of the main frame or the indicator individually. So, when the user makes use of the portable type computer adjusting the game direction and the function keys to play the game that can pressure the game direction key or the game key combination on the portable type computer adjusting the game direction and the function keys to execute the needed function. So it is benefit to enhance the flexibility and the facility.

LCD device and its contrast adjusting apparatus and method

The invention discloses a liquid crystal display, a contrast adjusting device and a method thereof. The contrast adjusting device and the method disclosed by the invention correct the contrast value of the liquid crystal display at any time according to the brightness variation of surrounding environment of the liquid crystal display so as to ensure that the liquid crystal display presents the brightness of the displayed pictures with the largest comfort to users.

LCD device and its gamma curve adjusting apparatus and process

The present invention discloses a liquid crystal display and the gamma curve adjusting device and method thereof. The gamma curve adjusting device and the method thereof provided by the present invention adjusts a gamma curve to be the most suitable for the viewing through human eyes according to the brightness changes of surrounding environment of a liquid crystal display. Therefore, users can be led to feel that the color brightness of the liquid crystal display is high in resolution, and the pictures displayed by the liquid crystal display can become clearer.

Distribution transformer oil supplementing device

The utility model relates to a distribution transformer technical field, more specifically relates to a distribution transformer oil supplementing device. Current when mending oil for distribution transformer in order to solve, need move on to the safety problems such as high strength work that distribution transformer rack eminence was brought with distribution transformer oil supplementing device, the shipside delivery supply one kind with the battery as the power, driving motor drives the oil pump, utilizes the oil pipe that adds who retrieves in the storehouse, arrives the distribution transformer oil pump of lower in the device of eminence, injection distribution transformer oil tank.