466results about How to "Easy to intercept" patented technology

A method of operating a point-of-sale (POS) system (1), the POS system comprising a POS terminal (3) having a software module (17, 21) thereon for enabling a retailer to process transactions within a transaction environment, and a peripheral device (5, 7) in communication with the POS terminal (3), the POS system (1) further comprising a driver software module (40) installed between the POS terminal (3) software module (17, 21) and the peripheral device (5, 7), the method comprising: receiving, at the driver software module (40), data sent between the software module (17, 21) and the peripheral device (5, 7) in communication with the POS terminal (3); communicating with a further device (44, 60, 64) in dependence on the data received at the driver software module (40); receiving modified data from the further device (44, 60, 64); and outputting the modified data.

A door arrangement for tightly closing a door opening comprises a door frame, a door which, when closed, is arranged in the door frame, and inner and outer sealing lips. The inner and outer sealing lips run next to each other along a periphery of the door opening between a first surface of the door and a second surface of the door frame, wherein the first and second surfaces face each other. The inner and outer sealing lips bound a space formed between them. The door arrangement further comprises a pressure-reducing device configured to reduce pressure in the space.

The invention relates to an integrated sewage treatment device with high efficiency and low consumption and a treatment method, and belongs to the field of sewage treatment. The integrated sewage treatment device comprises a pretreatment unit, a multi-oxidation-deoxidation environment coupling biological reaction pond unit and a deep treatment unit sequentially connected. The multi-oxidation-deoxidation environment coupling biological reaction pond unit adopts a three-stage anoxia-aerobiotic alternating reaction pond filled with a circular composite glass ball porous microbial carrier. The deep treatment unit comprises a filter cloth dynamic film biological reaction pond and first and second dynamic films. Sewage is treated through the devices sequentially. The device provided by the invention cannot only remove carbon containing organic matters, but also has good nitrogen and phosphorus removal capacity.

The present invention relates to a donor radio access node (DeNB1) configured to wirelessly connect to, and to proxy operation of a source relay node (RN1), and further configured to forward upstream user traffic towards a serving gateway (S-GW1) during a handover of a particular mobile device (UE1) from a source cell (A) operated by the source relay node to a target cell (C) operated by a target radio access node (eNB2). In accordance with an embodiment of the invention, the donor radio access node comprises: —first forwarding means (FW1) for forwarding a sequence of upstream data packets (P1, P2, P3) from the source relay node to the serving gateway, which sequence of upstream data packets comprising upstream data packets up to a particular packet sequence number (Y−1), —second forwarding means (FW2) for forwarding a data transfer status message (SN STATUS TRANSFER) for the particular mobile device from the source relay node to the target radio access node, which data transfer status message comprising an information element (Y) indicative of the particular packet sequence number, wherein the donor radio access node comprises a forwarding controller (CTRL) coupled to the first and second forwarding means, and configured to interdependently control forwarding of the data transfer status message and of any pending upstream data packet (P2, P3) out of the sequence of upstream data packets that has not been yet validly forwarded to the serving gateway. The present invention also relates to a method for forwarding upstream user traffic towards a serving gateway during a handover.

The invention relates to a signal modulation method applied to the field of anti-interference and secure communication and discloses a signal modulation method based on weighted-type fractional Fourier transform and energy spreading transform, to solve the problem that a signal interception party adopts WFRFT (weighted-type fractional Fourier transform) and transform order tracking is relatively accurate, the anti-interception effect is poor when variable-parameter mixed carrier signals of multi-parameter fractional Fourier transform are adopted. The signal modulation method comprises the following steps of: 1, establishing an energy spreading transform matrix; 2, performing multistage tandem weighted-type fractional Fourier transform and pseudo-random interleaving process at a sending end; 3, processing a modulated sequence x through a channel cancellation technology (such as channel equalization, channel coding and decoding technologies and the like) to obtain a signal y to be modulated, and performing inverse transform on the signal y to be modulated by a signal receiving end to realize a demodulation process and restore an estimated value of a source information sequence. The signal modulation method disclosed by the invention is applied to the field of secure communication.

The apparatus comprises: mail receiving/delivering unit; general mail control unit; and anti-spam unit and mail database. The mail database pre-stores the template of spam and the template of legal mail; after receiving the request of receiving and delivering mail, the mail receiving/delivering unit sends the mail to be received or delivered to the anti-spam unit that compares said mail with the template of spam and the template of legal template, and according to the comparison result, marks the mail with the type label, and sent the mail to the general mail control unit to make control process, or returns the mail to the mail receiving/delivering unit.

The invention discloses an ecological floating bed suitable for a high-sediment large-flow rate water body. The ecological floating bed is formed by interconnecting two floating bed units, wherein each floating bed unit comprises floating bed fixing rods, hollow PVC tubes, wave eliminating rafts and a gauze; a plurality of hollow PVC tubes are horizontally arranged and fixed by the floating bed fixing rods so as to form a floating raft; the wave eliminating rafts are arranged below the two ends of the floating raft respectively; the gauze in which hollow columnar polyvinyl chloride short corrugated tube packing is packed is hung below the floating raft; and the gauze is positioned below the wave eliminating rafts. The ecological floating bed can treat the water body which contains high sediment and high phosphorus and nitrogen concentration, is suitable for a river with large flow rate, can build a landscape effect without influencing shipping, and can produce part of economic benefits.

The invention provides an underground coal mine dust collecting device and belongs to the dust collecting device. One end of a pressure wind inlet of the dust collecting device is provided with a wind inlet, and the other end of the pressure wind inlet is provided with a first inner nozzle. The wind pressure inlet is inserted into a one-level ejector which is provided with a first dust suction inlet. The first dust suction inlet is located on a position of a first receiving room. The one-level ejector is provided with the first receiving room. A first mixing room is arranged at the front end of the first receiving room. A second inner nozzle is arranged on the end portion of the first mixing room. The end of the first mixing room is inserted into a two-level ejector provided with a second dust suction inlet, a water inlet, a dedusting agent inlet and a nozzle. The two-level ejector is provided with a second receiving room. A second mixing room is arranged at the front end of the second receiving room. The second dust suction inlet is arranged on the position of the second receiving room. The water inlet and the dedusting agent inlet are arranged on the position of the second mixing room. The nozzle is arranged at the front end of the second mixing room. The underground coal mine dust collecting device is simple in structure and high in dedusting efficiency, reduces water consumption of coal mine dust collection, eliminates a high-pressure water pump, and reduces cost.

The invention relates to a bamboo breaking machine capable of automatically screening bamboo tube specifications, comprising a frame, a screening device, a bamboo tube blanking device and a bamboo breaking mechanism. The screening device includes a screening conveying plate and a conveying guard plate. The horizontal part of the screening conveying plate is provided with a screening slot and a feeding slot for defective products. The feeding slot for defective products is equipped with a lifting block for feeding defective products. The lower part of the unloading lifting block is provided with a triangular distribution of defective product blanking hinge seats, and the defective product blanking hinge seat is hingedly matched with the cylinder push rod of the defective product blanking lifting cylinder; the present invention adopts a screening groove to match a screening intercepting block Realize a bamboo tube screening with a diameter specification, which can intercept oval and bent bamboo tubes, and set a lowering block for defective products under the screening block to remove the intercepted defective products, ensure the accuracy of screening, and improve the screening and conveying. s efficiency.

The invention relates to a method for deacidification of an alkylation reaction product. In the method, after being subject to gravity settling, mixed emulsified liquid of the alkylation reaction product (hydrocarbon oil) and sulfuric acid passes through a component with hydrophobic modified ceramic membrane at a membrane surface speed of 0.01-5m/s for separation, and the deacidification of oil is achieved in a cross current filtration mode under the operation pressure of 0.01-0.3MPa and at the operation temperature of 0-40 DEG C. Under the push of pressure, the oil passes through the ceramic membrane, acid in the oil is trapped, and the acid content in the obtained oil is lower than 100ppm, thereby greatly reducing alkaline usage and waste water generation amount in an acid-base refine system of an alkylation technology and reducing the use of electrostatic precipitation; and the ceramic membrane surface is subject to hydrophobic modification, thus the contact angle of water droplet on the membrane surface is 70 degrees-16 degrees. The method is suitable for removal of polar liquid in various oils, has the advantages of simple process, low energy consumption, high separation precision, no environment pollution and high economic and practical value, and is easy to achieve industrial application.

The invention discloses a suspended filler for quick biofilm culturing of microorganisms. The suspended filler is prepared from, by weight, 65-75 parts of high-density polyethylene, 5-15 parts of slaked lime, 5-20 parts of Dow powdered activated carbon, 6-10 parts of light calcium carbonate, 3-5 parts of maleic anhydride, 0.2-0.6 part of dicumyl peroxide, 1.5-3 parts of gelatin, 1-2 parts of chitin, 0.8-2 parts of ferroferric oxide magnetic powder and 0.1-0.3 part of manganese zinc ferrite. The density of the suspended filler for quick biofilm culturing of microorganisms is 0.96-0.98 g/cm3. The biofilm culturing speed is high, disengagement does not occur easily, treatment efficiency is high, and the suspended filler is suitable for treating low-concentration organic matter and ammonia nitrogen in sewage and low-concentration organic waste water. The suspended filler has extremely high hydrophilia and biocompatibility, the filler has high adsorption strength on biological films, biofilm culturing time is remarkably shortened, and the COD and ammonia nitrogen removal rate is increased remarkably.

The invention discloses an advanced treatment method for Lurgi coal gasification wastewater, relates to a sewage treatment method and aims to solve the problems that the discharged Lurgi coal gasification wastewater after being subjected to advanced treatment by using the traditional biochemical method still cannot meet the standard and a physic-chemical method is high in cost when being used for carrying out advanced treatment on the Lurgi coal gasification wastewater. The method comprises the following steps of: firstly, coagulation and absorption treatment; secondly, high-density sedimentation treatment; thirdly, advanced oxidation treatment; fourthly, continuous aeration and batch stirring treatment; fifthly, batch aeration biotreatment; and sixthly, V-shaped sand filter treatment to finish advanced wastewater treatment. The advanced treatment method has the advantage that the final effluent obtained through treating the Lurgi coal gasification wastewater by using the method provided by the invention can meet the recycling standard. The advanced treatment method is mainly used for advanced treatment of the Lurgi coal gasification wastewater.

The invention discloses a preparation method of an ammonolysis oxidized graphene-based 3D (Three-dimensional) nanoparticle modified organic separation membrane. The preparation method of the ammonolysis oxidized graphene-based 3D nanoparticle modified organic separation membrane comprises the steps of preparing oxidized graphene-based 3D nanoparticles; preparing ammonolysis oxidized graphene-based 3D nanoparticles; adopting a polymer ultrafiltration membrane as a basement membrane, and dispersing the oxidized graphene-based 3D nanoparticles into a polyamine aqueous phase solution and a multiple acyl chloride oil phase solution; soaking, solidifying, rinsing and air drying to obtain the oxidized graphene-based 3D nanoparticle modified organic separation membrane. By adding the oxidized graphene-based 3D nanoparticles into a nanofiltration membrane separation layer, so that the hydrophilia, the permeability and the retention characteristic of the separation membrane are well improved. The novel ammonolysis oxidized graphene-based 3D nanoparticle modified organic separation membrane can be widely applied in various fields of environment, biology, medicine, food and the like.

The invention discloses a method and a system for realizing authentication which can act an operation system into a prior safety system for realizing safety integration among systems in the field by using an acting integrated package, and completes safety authentication, operation authentication and data interchange. The technical scheme provided by the invention can reduce integration cost, prevent the existing product line from being destroyed, reduce integrated time of both sides, ensure safety among systems efficiently, complete charging authentication conveniently, and make the integration on the operation logic and the business model.

The invention discloses suspended microbial packing for wastewater treatment and a preparation method thereof. The suspended microbial packing is prepared from, by weight, 65-75 parts of high density polyethylene, 5-15 parts of slaked lime, 5-20 parts of Dow powdered activated carbon, 6-10 parts of light calcium carbonate, 3-5 parts of maleic anhydride, 1.5-3 parts of gelatin, 1-2 parts of chitin, 0.8-2 parts of ferromagnetic oxide powder and 0.1-0.3 part of manganese zinc ferrite. The suspended microbial packing is high in film formation speed, not prone to fall off, high in treatment efficiency and suitable for treatment of low-concentration organic matter and ammonia nitrogen in sewage and low-concentration organic wastewater. The biological packing has the extremely high hydrophilicity and biocompatibility, has the very high adsorption strength to a biological film and is beneficial for interception and accumulation of biomass on a packing carrier, and therefore the packing can better adapt to wastewater treatment under the low concentration condition.

The invention provides a synchronous denitrification dephosphorization method for domestic sewage with a low carbon nitrogen ratio. The method comprises the steps that the to-be-treated domestic sewage is subjected to intermittent aeration by being inoculated with aerobic granular sludge, and after the aeration, the to-be-treated domestic sewage continuously passes through the aerated sludge, wherein the intermittent aeration comprises a first stage aeration, a second stage aeration and a third stage aeration, the dissolved oxygen concentrations after the first stage aeration, the second stage aeration and the third stage aeration are reduced sequentially, and the running time of each stage aeration is not less than 7d. According to the method, dissolved oxygen concentration gradient differences exist from the surface to the interior of the aerobic granular sludge, and an 'aerobic-anoxic-facultative anaerobic' regional microenvironment is formed, so that microreaction conditions are provided for synchronous denitrification dephosphorization of the domestic sewage with the low carbon nitrogen ratio; in addition, the aeration quantity is reduced gradually, so that the entrapment of a nitrite bacteria microbial population and shortened synchronous nitrification and denitrification are ensured; and the method realizes rapid synchronous nitrification and denitrification coupled dephosphorization and efficient synchronous denitrification dephosphorization.