403results about How to "Flexible operation" patented technology

A dynamic cache system is configured to flexibly respond to changes in operating parameters of a data storage and retrieval system. A cache controller in the system implements a caching policy describing how and what data should be cached. The policy can provide different caching behavior based on exemplary parameters such as a user ID, a specified application or a given workload. The cache controller is coupled to the data path for a data storage system and can be implemented as a filter in a filter framework. The cache memory for storing cached data can be local or remote from the cache controller. The policies implemented in the cache controller permit an application to control caching of data to permit optimization of data flow for the particular application.

A touch panel including a first substrate, a second substrate, a first conductive layer, a second conductive layer, a third conductive layer, and a number of spacers is provided. The first substrate has an upper surface and a bottom surface opposite to the upper surface. The second substrate is parallel to the first substrate. The first conductive layer is disposed on the upper surface of the first substrate, while the second conductive layer is disposed on the bottom surface of the first substrate. The third conductive layer is disposed on the second substrate and interposed between the second substrate and the second conductive layer. The spacers are interposed between the second conductive layer and the third conductive layer. The touch panel has functions of multi-touch, contact-touch and non-contact touch, and the touch panel can be operated by conductive objects or dielectric objects.

The invention provides a novel self-balancing two-wheeled electric vehicle which is provided with two basically parallel wheels which are arranged in parallel on the left and right and can independently rotate. In order to reduce the volume and weight, the frame is omitted, and a foot pedal also serves as a frame. The foot pedal consists of two parts which can independently tilt forward or backward respectively; two wheels are arranged below the foot pedal; the wheels are lower than the upper surface of the foot pedal; and the two wheels are controlled by an electronic self-balancing control system so that the foot pedal is kept at horizontal balance in the front-back direction. A driver standing on the foot pedal can control the vehicle to go forward or backward or turn simply by changing the center of gravity. Therefore, the two-wheeled electric vehicle is flexible in control and stable in operation; and moreover, the vehicle is very light and convenient and easy to carry, and can be applied to multiple fields.

The invention discloses an air conditioning system which comprises an air conditioner, a mobile terminal and an integrated controller, wherein the air conditioner comprises a temperature detector used for detecting the outdoor environment temperature of the air conditioner; the mobile terminal is used for receiving weather information of the geographic position of the air conditioner to obtain forecast temperature within the preset time period; the integrated controller is used for correcting the forecast temperature within the preset time period according to the outdoor environment temperature of the air conditioner, generating control information according to the corrected forecast temperature and sending the control information to the air conditioner, and the air conditioner determines a running mode within the preset time period according to the control information and a currentrunning state and runs by the running mode within the preset time period. The air conditioning system is simple to operate and relatively intelligent, and can increase the comfort level of users. The invention further discloses a control method of the air conditioner as well as the mobile terminal, the integrated controller and the air conditioner.

A simulated mouse input method based on an interactive input device is provided, and is characterized in that: the mapping relation between an action command sequence and mouse actions is predefined according to the habit of mouse control actions; when an action command sequence indicating a target is in the detection area, the mouse actions corresponding to the received action command sequence are sent to a computer in a computer-recognizable form, so that the computer executes the mouse actions corresponding to the action command sequence. In the present invention, an action command sequence is mapped to mouse actions, so that sequential actions can be combined to improve operation flexibility and accelerate response, and extends the range of definable actions; therefore, the definable actions are more diversified, and the achievable functions are more sophisticated. Moreover, in the present invention, the mapping relation between action command sequence and mouse actions is predefined according to the habits of mouse control actions; therefore a more practical and humanized simulation of mouse operations is realized.

The invention relates to a dynamically adjustable template and a using method thereof, belonging to the field of webpage design. The dynamically adjustable template comprises at least one unit and has a control file used for controlling the display content of the unit of the template and the typesetting of the template. The typesetting of the template mainly comprises the following steps of: increasing cells; deleting the cells; changing the positions of the cells; and regulating the sizes of the cells. The using method mainly comprises the following steps of: editing the template; and saving operation. The template editing mainly comprises the following steps of: increasing the cells; deleting the cells; changing the positions of the cells; and modifying the contents of the cells. The operation saving is achieved in a way that the information of configuration parameters edited by the template is recorded by using the control file. The invention has the advantages of simple structure, flexible operation and convenient use and meets the requirements of users for establishing individualized websites because the users can customize page contents according to own actual demands.

The invention discloses a foot device with ankle joint parameter measurement suitable for an exoskeleton auxiliary supporting robot. The foot device is characterized in that plane hooke two-DOF (Degree Of Freedom) structures of ankle joints are realized due to the matching of upper supports, lower supports, two rotating shafts and four bearings, wherein the lower supports are arranged on soles, the lower supports are provided with angular displacement sensors, thus rotating angles of the ankle joints can be measured, and the measuring requirement of a robot on angular displacements of the ankle joints can be met; shank telescopic rods are inserted into the upper supports, front and rear rotating shafts, bearing end covers and bearings are fixedly arranged in lugs of the upper supports, the front and rear rotating DOF of ankles can be realized, and the angle measuring can be realized through the angular displacement sensors which are arranged on the front and rear rotating shafts; left and right rotating shafts are inserted into the lower supports for being fixed, the axes of the front and rear rotating shafts are maintained to be vertical to the axes of the left and right rotating shafts, and the left and right swinging DOF of the ankles can be realized; pressure sensors are arranged among front feet, rear feet and the soles, the front feet and the rear feet are fixedly connected with the soles, the soles are in contact with the ground, plantar pressure is changed when a person walks, a walking intention of the person can be judged through the detecting of the pressure sensors, and the good control of the exoskeleton auxiliary supporting robot can be realized.

The invention especially relates to a preparation method for a urea ammonium nitrate solution, which belongs to the field of fertilizers. The method is characterized by comprising the following steps: (1) synthesis of ammonium nitrate, wherein liquid ammonia is gasified by a liquid ammonia evaporator and then reacts with a nitric acid solution in a first neutralizer for a neutralization reaction so as to produce ammonium nitrate; (2) gas-liquid separation, wherein resultant ammonium nitrate and residual ammonia gas in the reaction enter into a separation section of the first neutralizer for separation; (3) preparation of a urea solution; (4) production of the urea ammonium nitrate solution, wherein ammonium nitrate and urea are put in a second neutralizer for a reaction so as to produce the urea ammonium nitrate solution; (5) cooling and storage, wherein the resultant urea ammonium nitrate solution is cooled, discharged and stored; (6) washing and purification of tail gas; and (7) condensation and filtration of the tail gas. The method provided in the invention has the advantages of agile operation, simple flow, economical investment, low consumption, low production cost, convenient adjustment of load, capacity of fully adapting to market demands, reduced discharge, conservation of energy and environmental friendliness.

The invention discloses a method for real-time error correction of a neurosurgery navigation puncture path based on a near infrared spectrum, which belongs to a precision correction method of a surgical navigation system. The method comprises the following steps: firstly, extracting guidance information of a target path based on body data of a three-dimensional reconstruction body; secondly, coning the target path and extracting N pieces of guidance information for verifying puncture tracks on the conical surface; and thirdly, obtaining the target path and N optical curves for verifying the tracks according to optical parameters and a mathematical correlation model of image data, in virtue of a curvilinear trend matching algorithm of Hausdorff distance and curvature, obtaining a puncture track curve having the same variation tendency as a real-time near infrared optical signal in a tolerance range, determining a direction offsetting from the target path, calculating coordinate offset, performing real-time path correction, and guiding an operation. The method can be implemented simply at a quick speed, can be performed in real time, is convenient for clinical application and can be integrated in the surgical navigation system, thus the precision of the navigation system is greatly improved.

The invention provides an intelligent wheelchair based on a brain-computer interface and a control system and a control method of the intelligent wheelchair. The control system comprises a power supply management unit, a signal input unit, a system master control unit and a motion executing unit, the power supply management unit is respectively in circuit connection with the signal input unit, the motion executing unit and the system master control unit, the signal input unit is in communicating connection with the system master control unit, and the system master control unit is in communicating connection with the motion executing unit. The control system is a modularized intelligent control system, the intelligent wheelchair using the intelligent control system has the functions of automatically walking, being a barrier, being controlled by brain electrical signals to walk, carrying out local path plans and the like, the advantage of the more flexible and more reliable operation mode is achieved, the requirements of the old with dyskinesia or amyotrophy, the disabled and other crowds can be met, and the life quality of the old with the dyskinesia or the amyotrophy, the disabled and other crowds is improved.

The invention discloses a welding material and a welding method for welding a transition layer of a Ti-pipeline steel composite board. The welding material comprises a near-Ti-layer welding material and a near-steel-layer welding material, wherein the near-Ti-layer welding material comprises the components as follows: 52-58% of Ni, smaller than or equal to 0.04% of C, smaller than or equal to 0.007% of N, smaller than or equal to 0.035% of O, smaller than or equal to 0.001% of H and the balance of Ti; and the near-steel-layer welding material comprises the components as follows: 3.15-3.35% of Mn, 18-27% of Cr, 0.01-0.015% of Cu, 0.35-0.55% of Ti, 0.03-0.04% of Co, 1.8-2.0% of Nb, 0.2-0.6% of Ta, smaller than or equal to 0.02% of C, smaller than or equal to 0.025% of Si, smaller than or equal to 0.002% of P, smaller than or equal to 0.002% of S, smaller than or equal to 0.75% of Fe and the balance of Ni. According to the welding material and the welding method, the fusion welding butt joint of the Ti-pipeline steel composite board is realized, a welded joint has excellent obdurability, and the welding efficiency is high.

The invention provides a slide-typed video playing method which is characterized in that the user sends ordering request to a server end by input equipment with a touch display screen and comprises the detailed steps as follows: a: the user carries out the touch operation on the touch display screen of the input equipment; the input equipment records the operation track of the user; b: if the input equipment judges the touch operation as a click operation, corresponding operation command is sent to the server end; c: if the judging result in step b is not the click operation, the operation is judged as a sliding operation; the direction of the sliding operation is calculated and the automatic page-turning operation is carried out on the touch display screen of the input equipment; d: when the sliding operation of the user is judged to stop, the automatic page-turning operation is stopped and the step a is turned to. The slide-typed video ordering method of the invention leads the touch screen to have an intelligent induction function and can smartly realize the dynamic page-turning to the left side and right side.

A method for operating a front-end device by using an integrated SIP video monitoring system platform comprises an integrated SIP video monitoring system platform integrated with SIP Proxy server and WEB server. The integrated SIP video monitoring system platform provides the WEB page for access and login of the user terminal; after the user terminal logins the integrated SIP video monitoring system platform, the method builds a conversation connection between the integrated SIP video monitoring system platform and the SIP gateway of the front-end device by using the SIP request; the SIP gateway obtains the information operating the front-end device via analyzing the SDP message of the SIP message, and builds the instruction which can be received by the front-end device to operate the front-end device, and then returns the operated results from the front-end device to the integrated SIP video monitoring system platform. The method can achieve the functions of distribution, detection and video browsing and so on under the B/S (browsing end/service end) mode.

The invention provides an aging method and equipment of a catalytic cracking catalyst. The method comprises the following steps that: (1) in a catalyst aging vessel, vapor is in contact with a high-temperature catalyst to reduce the catalyst activity, gas in the catalyst aging vessel and the catalyst carried by the gas are separated at the top of the catalyst aging vessel, the gas enters a post-processing system, and the catalyst returns to the bottom of the aging vessel; (2) fuel is introduced into a dilute phase burner, the catalyst at the bottom of the aging vessel enters the dilute phase burner to be mixed with oxygen-containing gas and the fuel to carry out burning reaction, and the gas and catalyst after complete burning reaction enter the middle part of the aging vessel; and (3) after the catalyst activity is reduced to the target activity, the device stops working, and the catalyst is discharged. By adopting the catalyst aging method provided by the invention, the hydrothermal reaction of the catalyst reduces the catalyst activity, the catalyst is separated by heating, the operating conditions and reaction speed of the catalyst can be conveniently controlled respectively, the aged catalyst has even activity distribution, and the product distribution is obviously improved after the aged catalyst is used for a catalytic cracking unit.

The invention belongs to the field of spatial sampling robot engineering and particularly relates to a planet surface mechanical arm sampling device. The planet surface mechanical arm sampling device comprises a sample saving box, a sampling mechanical arm system and a sample saving system, one end of the sampling mechanical arm system is connected onto the sample saving box through a joint, and the other end of the sampling mechanical arm system is connected with an opening-and-closing type bucket through an opening-and-closing type shoveling mechanism, the sample saving system is installed in the sample saving box, an opening is formed on the sample saving box, and samples collected by the bucket are placed in a sample receiving area of the sample saving system through the opening for saving. The planet surface mechanical arm sampling device is light in structure weight and flexible in operation, can resist to the spatial electromagnetic environment and extreme high-and-low temperature conditions on a planet surface in an application process and can adapt to wide engineering application environment and a big scope. The planet surface mechanical arm sampling device can be used for conveniently colleting objects at any position of a sphere with a mechanical arm installation base to serve as an original point and the overall length of the sampling mechanical arm system to serve as the centre of a circle, and the planet surface mechanical arm sampling device has a plurality of superiorities on sample collection work under serious conditions.

The invention discloses a multi-degree-of-freedom missile bay section butt joint device. The multi-degree-of-freedom missile bay section butt joint device comprises a vehicle body and a butt joint system. The vehicle body comprises a vehicle frame and wheels. The wheels are installed under the vehicle frame. The butt joint system is installed on the vehicle frame and comprises lifting mechanisms, posture adjustment mechanisms, feeding mechanisms and supporting mechanisms. The lifting mechanisms used for lifting missile bay sections are fixed to the vehicle frame. The lifting mechanisms are sleeved with one ends of the posture adjustment mechanisms, and the other ends of the posture adjustment mechanisms are connected with the feeding mechanisms. The supporting mechanisms are installed on the feeding mechanisms. According to the multi-degree-of-freedom missile bay section butt joint device, the advantages of a hoisting butt joint mechanism and the advantages of a lead screw and nut butt joint mechanism are combined; a flexible butt joint form is adopted, and adjustment of the butt joint postures of the missile bay sections is achieved through ball hinge assemblies and limiting assemblies; operation is flexible and easy, and butt joint can be achieved rapidly, safely and reliably; in addition, the structure is simple, and the manufacturing cost is low; the butt joint system is installed on the vehicle frame, thereby being suitable for being transferred from one site to another site.

The invention discloses an automatic-positioning building handing basket device which comprises a supporting mechanism, a chain transmission mechanism, a hanging basket body and a controlling mechanism. The supporting mechanism is mounted at the top of a building, the chain transmission mechanism is arranged on the supporting mechanism, the hanging basket body is connected with the chain transmission mechanism, and the controlling mechanism is fixed on the supporting mechanism and electrically connected with the chain transmission mechanism. The defects of the prior art can be overcome, and meshing transmission of a chain wheel and a chain is adopted to replace conventional steel wire rope friction transmission, so that transmission accuracy, transmission capacity and working stability of a hanging basket lifting device are all improved greatly; the transmission mechanism is simple in design and easy to realize, and load bearing capacity of the whole device is improved; a sucker structure on the hanging basket body closely adsorbs an external wall to realize automatic positioning, so that shaking of a hanging basket in the air is avoided; the hanging basket is flexible to operate, easy to move, convenient, practical, safe and reliable.

The invention provides a gangway ladder door retracting and releasing device. The gangway ladder door retracting and releasing device comprises a connecting mechanism (10) and a driving mechanism (40), wherein the connecting mechanism (10) is connected between a gangway ladder door (20) and a door frame (30) in a stretchable manner and can control opening or closing of the gangway ladder door (20); and the driving mechanism (40) is arranged on the door frame (30) or the gangway ladder door (20) and can drive the connecting mechanism (10) to execute retracting and releasing motions. According to the gangway ladder door retracting and releasing device provided by the invention, the structure is simple, the operation is flexible, the gangway ladder door retracting and releasing device is safe and reliable, the occupation space is small in after the gangway ladder door is retracted, and meanwhile, the gangway ladder door retracting and releasing device can also be used as a handrail.

The invention discloses a thigh and shank device with a knee joint parameter measurement suitable for an exoskeleton auxiliary supporting robot. The thigh and shank device is characterized in that knee joints are driven by adopting hydraulic cylinders, and the response speed and the bearing capacity of the exoskeleton auxiliary supporting robot are increased; the waist is connected with thighs through telescopic rods, and shanks are connected with feet through telescopic rods; one ends of the hydraulic cylinders are connected with the thighs through supports, pin shafts and joint bearings, piston rod ends are connected with the shanks through hydraulic cylinder connecting pieces, the knee joints are connecting components of the thighs and the shanks, sensors are used for measuring angular displacements of the knee joints, and the moving control that the knee joints of a human body are followed by exoskeletons is realized. According to the high and shank device with the knee joint parameter measurement suitable for the exoskeleton auxiliary supporting robot, disclosed by the invention, only the knee joints are controlled by the hydraulic cylinders, other joints are all used for adapting to moving requirements of leg joints of the human body, and the other joints comprise hip joints which are provided with the sensors, ankle joints, plantar structures, side swinging arms of the waist, globe joints of the thighs and the like; the structural characteristics of the human body are artificially simulated by the exoskeleton auxiliary supporting robot, the thigh and shank device is suitable for the human body to wear, the moving flexibility is maintained, the structure is simple, and a user can be helped to support the load weight.

A main shaft of a motor head of a no dig guiding driller comprises a driving sleeve which is butt jointed with a driving system, a floating core shaft which is arranged in the driving sleeve, which is slideably matched with an inner hole of the driving sleeve, a transmission torsion splined hub which is fixedly and hard connected with the bottom of the driving sleeve, the transmission torsion splined hub is engaged with an outer spline on the lower portion of the floating core shaft to transmit torque, meanwhile the corn shaft achieves upper and lower floating along the spline, and a floating distance limiting mechanism is arranged between the floating core shaft and the driving sleeve. The torque is transferred to the floating core shaft through an output flange and the transmission torsion splined hub by adopting a core shaft floating way, the return rotating of a drilling tool is achieved by a drill rod of a damageable short segment of the floating core shaft, the core shaft which has no middle transmission step can directly float, and the floating range is bigger than a traditional motor head floating way, the motor head which is fed or back dragged can stay on any position to guarantee the reliability of floating. Centring accuracy is high, a main shaft is not suppressed when the drill rod is detached, and the main shaft is easy to be centered when the drill rod is mounted.

The invention discloses a conveying belt change method for a conveyor. The conveying belt change method for the conveyor includes that mounting a draft gear near the conveyor, disconnecting an old conveying belt on the conveyor, connecting one broke end with the draft gear and connecting the other broke end to one end of a new conveyor, drafting the old conveying belt through the draft gear to drag out the old conveying belt from the conveyor gradually, making the new conveying belt enter the conveyor gradually and lay in the conveyor when dragging the old conveyor. The conveying belt change method for the conveyor is agile to operate and has high feasibility, scientificity and adaptivity. Because the new conveying belt used for changing the old conveying belt can be connected integrally or segmentally in advance, the construction link is little, the construction is finished easily, quickly and conveniently, and the safety is improved greatly.

The invention relates to a technique method of sea removing the sulphur dioxide of gas in the film absorption method, which belongs to the air pollution control technology domain. Its characteristic lies in that the gas cools down through the dust removal and sea water cycle cooling system into the cavity of the hydrophobicity hollow-fibre membrane absorber. After the sea water filters thickly, enters the membrane absorber shell as desulphurization absorption liquid by the flow control part. This method controls the fluid two pressure differences, uses the pore on the sparse water film to cause the fluid and gas separately flow inside and outside the membrane without having the interaction mix, which avoides the shortcoming of traditional aqueous desulphurization method. This invention's effect and the profit are having high efficiency, flexible to install, small floor space, easy to adjust the size, and invariably current control. The membrane absorption method has the very good application prospect in the coast, the islands, and the ships and other place which has rich seawater resource.

The invention discloses a grasping mechanism which comprises a clamping jaw, a support, an adjusting plate and a driving device; the clamping jaw comprises a plurality of clamping fingers which are in parallel with one another; the clamping fingers are arranged in parallel with equal spacing; through holes are arranged on the side surfaces of the finger rods of the clamping fingers; the through holes among the finger rods are in alignment horizontally; the front sides of the finger rods of the clamping fingers are provided with positioning bulges on the same horizontal height; the middle part of the support is provided with an 'H'-shaped bracket; the clamping jaw is arranged between the two vertical rods of the 'H'-shaped bracket; the clamping fingers of the clamping jaw are serially hung on the horizontal rod of the 'H'-shaped bracket through the through holes; the adjusting plate is arranged vertically; a guide groove which corresponds to each clamping finger is arranged in the surface of the adjusting plate; the surface of the adjusting plate clings to the front sides of the clamping fingers; the positioning bulges of the finger rods are clamped into the corresponding guide grooves one by one; and the driving device is connected with the adjusting plate and controls the same to move up and down. When a machine operates, the driving device is started to control the adjusting plate to move up and down, the clamping fingers of the clamping jaw are folded or unfolded through the guide grooves in the adjusting plate, so that the operation is flexible.

The invention discloses an air conditioner starting and operating at low voltage and a control method thereof. The air conditioner comprises a compressor, a voltage detection unit, a controller and an electric control component, wherein input voltage is electrically connected with the controller through the voltage detection unit; the controller is electrically connected with the compressor through the electric control component; four binding posts are arranged on the compressor, namely a main winding, a secondary winding, a first common terminal and a second common terminal; and the second common terminal is a tap extending from the main winding of the compressor. When the air conditioner starts, the voltage detection unit detects the input voltage, and an initial operating state of the air conditioner is determined according to the detected input voltage; during operation, the voltage detection unit detects the input voltage, and operation switching of the air conditioner is determined according to the detected input voltage when the voltage greatly fluctuates, namely the first common terminal is connected/disconnected with the second common terminal; and the invention has the characteristic that: the air conditioner can normally and stably start and operate at low voltage and has a wide application range.

The invention discloses an intelligent input method and a device on the basis of interaction-typed input equipment; by detecting and judging the action of an object in a detection area, according to a pre-arranged encoding method, the action of the object is encoded; furthermore, the codes can be memorized into a pre-arranged memory area; the codes and the action codes memorized in the pre-arranged memory area are combined into a code combination sequence; when a pre-arranged action sequence in coincidence with the code combination sequence exists in the database, operation corresponding to the code combination sequence is sent to a computer in a recognizable type and corresponding operations are carried out. The intelligent input method and the device of the invention are provided with the prearranged memory area, and can combine the actions of front and rear actions in the pre-arranged period, thus expanding the function of the mouse by combining various corresponding functions of the operations, and expanding the range of the definable actions; the defined action can be more diversified; furthermore, the definable function options are added; correspondingly, the functions realized by the simulated mouse are more perfect, the operation is more flexible and convenient and the humanization is stronger.

A system and method are provided to enable the indication positions of respective indicators (e.g., fingers) to be detected (multiple-point detection) and also to enable detection of the users of the indicators (user detection). Signal generators for generating different signals for respective users are provided, and the signals from the signal generators are supplied to a sensor section through indicators. In a multi-touch and multi-user detecting device 1, a transmitting section 200 supplies determined signals to respective transmitting conductors 11Y. Respective receiving conductors 12X receive the signals from the transmitting conductors 11Y and also the signals from the signal generators of the users. Based on these signals, a user-and-position identifying circuit 33A and a position detecting circuit 34A in a receiving section 300A function to detect indication positions indicated by the respective indicators as well as the users using the indicators.

The invention discloses an overturn-resistant self-elevating platform pile shoe which comprises an iron-plate-shaped hollow flat circular shell body connected by an upper top board and a lower bottom board. At least three tubular sliding ways fixedly connected with the shell body are horizontally arranged along the circumference wall of the shell body in an equally spaced mode; the front end of each tubular sliding way is provided with a limiting ring and a sealing ring, the rear end of each tubular sliding way is provided with a flange, a hydraulic oil cylinder and at least one section of telescopic pipe are sequentially arranged from the rear end to the front end, one end of a piston rod of the hydraulic oil cylinder is connected with a reinforced bar inside the shell body, a rod head arranged at the other end of the piston rod is connected with the inner end face of the front end of the telescopic pipe, the front end of the telescopic pipe is closed, and the rear end of the telescopic pipe is provided with a flange; the upper top board of the shell body is further provided with a watertight stuffing box, a watertight door is arranged at the bottom of the lower bottom board, and the hydraulic oil cylinder is communicated with a hydraulic servo system installed on a self-elevating platform through a high-pressure oil pipe. The overturn-resistant self-elevating platform pile shoe has the advantages of being flexible in operation, safe, reliable, resistant to overturning and sliding and strong in puncturing capacity.

The invention relates to a preparation method of Stefan parchment paper, comprising the following steps of adopting 30-50% of goods hard wood pulp and 50-70% of goods needle wood pulp in the concentration of 4.0-5.0% for slurry compounding in base paper developing process, wherein the pulping degree is 34-42 degrees SR; the pulp material is made into paper after being beaten; then the base paper is dyed via the dyestuff composed of 5-25% of thickening agent and 5-25% of permeating agent, coated, calendered and cut. The preparation method of Stefan parchment paper has flexible and simple operations, stable and reliable production technique, cheap raw material, low energy consumption, quite little waste water and small pollution; and the Stefan brown paper obtained through the method has good softness of the paper surface, strong three-dimensional sense, bright colour and strong visual effect of sheepskin.

The invention belongs to the field of image detection and observation and discloses a multi-bent-portion device and an industrial endoscope. The multi-bent-portion device comprises a bent neck, a mounting head, an operating part and a telescopic support rod. One end of the bent neck at least comprises two snake bone shaped components, multi-direction bending can be realized under control of the operating part, and the telescopic support rod is capable of strongly supporting a flexible tube of the bent neck. The industrial endoscope based on the multi-bent-portion device comprises an image acquisition system, a connector, a handle and a liquid crystal display control device 5, and video monitoring and analysis of narrow areas, complex environments and dangerous environments can be realized. The multi-bent-portion device and the industrial endoscope are flexible in operation, high in portability, suitable for complex environments with bent pipelines, steps and the like and widely applicable to industrial field or the medical field.

A socket includes a first base member that includes a module mount unit allowing a module including an imaging device and an object to be placed thereon and an electric connector that electrically connects the imaging device to an external apparatus, a second base member having an opening, and an engagement unit that causes the first base member to be engaged with the second base member under a condition that the module placed on the module mount unit is sandwiched by the first and second base members. When the first base member is engaged with the second base member by the engagement unit under a condition that the module placed on the module mount unit is sandwiched by the first base member and the second base member, the electric connector is electrically connected to the imaging device, and the object receives illumination light from a light source through the opening.