摘要:
In this method, the pictures are processed in blocks whose dimensions (H,V) expressed in a number of pixels are integral powers of two, and the contents (pixels) of the different blocks are stored in the memories one after the other. The device for calculating the position of a pixel in the memory from the position x, y of the said pixel in the picture is formed by two material operators 11, 12 which extract from x and y, respectively, the most significant bits m and p, m and p being the integers such as 2.sup.m =H and 2.sup.p 32 V, a multiplier 19 multiplying the number of blocks in a picture line NBLOCH by the vertical component ADBLOCV supplied by the operator 12, and an adder 20 which adds together the result supplied by the said multiplier and the coordinate ADBLOCH supplied by the operator 11.
摘要:
Method and device for programming an image acquisition system including a camera having a field of vision and a processor of images taken by the camera, in order to define at least one detection area in the field of vision of the camera, in which a sending device (21) is placed in at least one position in the field of vision of the camera and the sending device sends at least one initialization light signal having predetermined light characteristics towards the camera when it is in the position. The content of the images (9a) obtained from the camera is analyzed so as to recognize the initialization signal and the signal is located by its coordinates in the images obtained from the camera. A program predetermines at least one detection area (15) in the field of vision of the camera based on the coordinates of the initialization signal.
摘要:
An integrated digital-to-analogue (D/A) converter circuit provided with a device for reducing glitches. The D/A converter converts control signals having n binary states Bn into analogue signals and comprises n differential pairs Pn of transistors T1n and T2n connected to n current generators which supply currents of a value In weighted according to the binary weights 2.sup.n of the binary states Bn. The transistors T1n receives their respective binary control signals and the transistors T2n receive the respective binary control signals inverse to the preceding signals. The triggering instant of the differential pairs at a leading edge of the control signal is shifted over the triggering instant at a leading edge of the control signal in that a shift of the triggering thresholds of the transistors T1n with respect to the transistors T2n is effected over a constant value Vd obtained by the device for reducing glitches and constituted by resistors Rn connected in series with the emitters of the transistors of one of the series of transistors T1n or T2n in such a manner that Rn..sup.In/.sub.2 =Vd.
摘要翻译:一种集成的数模(D / A)转换器电路,其具有用于减少毛刺的装置。 D / A转换器将具有n个二进制状态Bn的控制信号转换为模拟信号,并且包括连接到n个电流发生器的晶体管T1n和T2n的n个差分对Pn,其提供根据二进制状态的二进制权重2n加权的值In的电流 Bn。 晶体管T1n接收它们各自的二进制控制信号,并且晶体管T2n接收与先前信号相反的相应的二进制控制信号。 在控制信号的前沿的触发时刻,在控制信号的前沿的差分对的触发时刻在晶体管T1n的触发阈值相对于晶体管T2n的移动是在 通过用于减少毛刺并由与串联晶体管T1n或T2n中的一个晶体管的晶体管的发射极串联连接的电阻器Rn构成的器件获得的恒定值Vd以使得Rn.In/2=Vd。
摘要:
A method for delignifying ligno-cellulosic materials and efficiently separate from each other the constituents thereof. Said materials are heated in an aqueous acid medium in the presence of phenol compounds. Then the reaction medium is drained and washed for isolating the purified solid cellulose pulp, the liquid phase separating into two layers: an aqueous layer rich with pentoses and an organic layer rich with phenols and lignin, the latter providing, by distillation and pyrolysis of the residue, a quantity of phenols at least equal to that of the phenols used in the delignification stage.
摘要:
A self-assessment tool, application program and method for assisting a person or medical doctor in diagnosing the person's nutritional, functional, physical and cognitive abilities in order to suggest remedial actions. The method includes displaying results that show each of the standard cognitive and physical abilities in a sized depiction with the patient's cognitive and physical abilities shown in another sized depiction such that when the patient's cognitive or physical abilities are lower than the standard abilities, the patient's sized depiction is smaller in size than the depiction of the standard abilities, and when the patient's cognitive or physical abilities are higher than the standard abilities, the patient's sized depiction is larger in size. This allows the patient's doctor to quickly and visually determine which abilities, if any, require remedial action to try to enhance or increase the patient's abilities to thus improve the patient's further aging and quality of life.
摘要:
This device comprises a cable working line bearing a lower assembly and a winch for maneuvering the line.The hydraulic central unit (46) of the winch includes a tank (50) for storing a hydraulic control fluid, a pump (52) for driving the hydraulic fluid, connected to the tank (50) through an upstream conduit (54) and at least one hydraulic motor (56) for driving the drum (42) connected to the pump (52) through an intermediate conduit and connected to the tank (50) through a downstream conduit.The hydraulic central unit comprises a regulator (62) for the hydraulic fluid flow rate at the outlet of the pump (52). The regulator (62) is driven according to at least one hydraulic fluid pressure depending on the load exerted on the motor (56) by the rotary drum (42), said or each pressure being directly taken on one of said conduits.
摘要:
This device comprises a cable working line bearing a lower assembly and a winch for maneuvering the line.The hydraulic central unit (46) of the winch includes a tank (50) for storing a hydraulic control fluid, a pump (52) for driving the hydraulic fluid, connected to the tank (50) through an upstream conduit (54) and at least one hydraulic motor (56) for driving the drum (42) connected to the pump (52) through an intermediate conduit and connected to the tank (50) through a downstream conduit.The hydraulic central unit comprises a regulator (62) for the hydraulic fluid flow rate at the outlet of the pump (52). The regulator (62) is driven according to at least one hydraulic fluid pressure depending on the load exerted on the motor (56) by the rotary drum (42), said or each pressure being directly taken on one of said conduits.
摘要:
Depolymerized cellulose powder having substantially an amorphous structure which is obtained by letting cellulose fibers dissolve in concentrated hydrochloric acid of about 40% and at a temperature of at least 38.degree. C. A homogeneous acid hydrolysis is carried out under well controlled conditions in order to depolymerize the dissolved cellulose and is stopped when the cellulose has achieved a mean degree of polymerization between 10 and 200. The depolymerized dissolved cellulose is then separated and processed in order to obtain the aforesaid powder of amorphous depolymerized cellulose.
摘要:
A conveyor apparatus is designed for the propulsion of metal sheets and more specifically sheets of ferromagnetic material. It operates by means of a linear induction motor associated with fluid cushion developing shoes. The apparatus is arranged to be movable perpendicularly to the sheets, its weight being counter-balanced so as not to react thereon. It is useful for sheet distributing machines.