Abstract: A security defending method, a coprocessor, and a processing apparatus are disclosed. The security defending method is applicable in a coprocessor, including: receiving a jump destination encryption request for the operation task; using mask configuration to perform first mask processing on the first jump destination address value to obtain a first intermediate jump destination address value; performing an authentication operation based on the first jump destination storage address, a key reference value corresponding to the operation task and the first intermediate jump destination address value, to obtain a first encryption result value; using the mask configuration to perform second mask processing on the first encryption result value to obtain a first intermediate encryption result value; performing an authentication operation on the first intermediate encryption result value and the first jump destination address value to obtain a first encryption jump destination address value.

Abstract: A security defending method and an electronic apparatus are disclosed. The security defending method is applicable in a coprocessor, including: receiving a jump destination encryption request for the operation task; using mask configuration to perform first mask processing on the first jump destination address value to obtain a first intermediate jump destination address value; performing an authentication operation based on the first jump destination storage address, a key reference value corresponding to the operation task and the first intermediate jump destination address value, to obtain a first encryption result value; using the mask configuration to perform second mask processing on the first encryption result value to obtain a first intermediate encryption result value; performing an authentication operation on the first intermediate encryption result value and the first jump destination address value to obtain a first encryption jump destination address value.

Abstract: A turn-up device, comprising a building machine main shaft, an outer sleeve device, a ply down finger assembly, a bladder device, a bead setting device, and a bead locking device. The outer sleeve device, the ply down finger assembly and the bladder device are all sleeved on the building machine main shaft. The outer sleeve device is located on the outer sides of the ply down finger assembly and the bladder device along the radial direction of the building machine main shaft. The bead setting device is located on the outer sleeve device. A tire building method using the turn-up device can improve the building quality of tire beads, improve the service life of capsule, and provide promising precision of carcass.

Abstract: A tire building method comprises the following steps: step 1, manufacturing a first carcass assembly on a carcass drum, and transferring the first carcass assembly to a building drum through a first carcass transfer device; step 2, manufacturing a second carcass assembly on a belt drum, and transferring the second carcass assembly to the building drum through a second carcass transfer device; step 3, respectively driving a first chuck seat and a second chuck seat to move oppositely by a first nut and a second nut; step 4, sleeving the second carcass assembly on the supported first carcass assembly, and fitting the two carcass assemblies together and rolling the same to form a third carcass assembly; step 5, winding a tread to the outer surface of the third carcass assembly to form a fourth carcass assembly; and step 6, dismounting the fourth carcass assembly from the building drum.

Abstract: An integrated opposite hook cable clamp includes a clamping plate, a connecting plate, and at least two J-shaped clamps. Side bars of the J-shaped clamps are locking bars. Locking holes corresponding to the locking bars are provided on the clamping plate, and at least two of the locking holes are diagonally arranged on the clamping plate. The locking bars of the J-shaped clamps vertically pass through the locking holes on the clamping plate and are movably connected with the clamping plate by a locking mechanism. A back surface of the connecting plate is lap-jointed to the inner sides of hooks of each of the J-shaped clamps. A front surface of the connecting plate is opposite to a front surface of the clamping plate (22).

Abstract: A turn-up device, comprising a building machine main shaft, an outer sleeve device, a ply down finger assy, a bladder device, a bead setting device, and a bead locking device. The outer sleeve device, the ply down finger assy and the bladder device are all sleeved on the building machine main shaft. The outer sleeve device is located on the outer sides of the ply down finger assy and the bladder device along the radial direction of the building machine main shaft. The bead setting device is located on the outer sleeve device. A tire building method using the turn-up device can improve the building quality of tire beads, improve the service life of capsule and provide promising precision of carcass.

Abstract: A well cementation working solution prepared from red mud, slag and waste drilling fluids. The working solution is prepared from the following components in parts by weight: 100 parts of waste drilling fluids, 50-100 parts of slag, 5-50 parts of red mud, 4-7 parts of a suspension stabilizer, 1-7 parts of an activating aid, 0.5-5 parts of an anti-pollution agent and 0.4-3.5 parts of a diluent. The waste drilling fluids are waste waterborne drilling fluids. The slag is blast furnace slag or vanadium-titanium slag. The suspension stabilizer is sodium bentonite, carboxymethyl cellulose or a mixture of sodium bentonite and carboxymethyl cellulose. The activating aid is sodium metasilicate nonahydrate, sodium carbonate or a mixture of sodium metasilicate nonahydrate and sodium carbonate. The anti-pollution agent is sodium salicylate, potassium citrate or a mixture of sodium salicylate and potassium citrate. The diluent is sodium lignin sulfonate.

Abstract: A method for evaluating the breakage strength of first and second cemented surfaces of well cementation under a dynamic load, includes: producing a rock-set cement-casing composite structure sample; clamping the sample between an incident rod and an output rod of a Hopkinson rod, hitting the incident rod with a conical punch to generate incident waves, enabling the incident waves to pass through the sample to generate reflected waves and projected waves, recording dynamic strain signals of incident waves, reflected waves and projected waves, and converting the dynamic strain signals into electrical signals and transmitting the electrical signals to a computer; recording the process and the corresponding time point from breakage starting to a complete breakage of the first and second cemented surfaces by a photographic instrument; obtaining a strain rate time travel curve and a stress-strain curve, and obtaining the corresponding breakage strength by analyzing the curve peak points.

Abstract: A tire building method comprises the following steps: step 1, manufacturing a first carcass assembly on a carcass drum, and transferring the first carcass assembly to a building drum through a first carcass transfer device; step 2, manufacturing a second carcass assembly on a belt drum, and transferring the second carcass assembly to the building drum through a second carcass transfer device; step 3, respectively driving a first chuck seat and a second chuck seat to move oppositely by a first nut and a second nut; step 4, sleeving the second carcass assembly on the supported first carcass assembly, and fitting the two carcass assemblies together and rolling the same to form a third carcass assembly; step 5, winding a tread to the outer surface of the third carcass assembly to form a fourth carcass assembly; and step 6, dismounting the fourth carcass assembly from the building drum.

Abstract: A well cementation working solution prepared from red mud, slag and waste drilling fluids. The working solution is prepared from the following components in parts by weight: 100 parts of waste drilling fluids, 50-100 parts of slag, 5-50 parts of red mud, 4-7 parts of a suspension stabilizer, 1-7 parts of an activating aid, 0.5-5 parts of an anti-pollution agent and 0.4-3.5 parts of a diluent. The waste drilling fluids are waste waterborne drilling fluids. The slag is blast furnace slag or vanadium-titanium slag. The suspension stabilizer is sodium bentonite, carboxymethyl cellulose or a mixture of sodium bentonite and carboxymethyl cellulose. The activating aid is sodium metasilicate nonahydrate, sodium carbonate or a mixture of sodium metasilicate nonahydrate and sodium carbonate. The anti-pollution agent is sodium salicylate, potassium citrate or a mixture of sodium salicylate and potassium citrate. The diluent is sodium lignin sulfonate.

Abstract: An integrated opposite hook cable clamp includes a clamping plate, a connecting plate, and at least two J-shaped clamps. Side bars of the J-shaped clamps are locking bars. Locking holes corresponding to the locking bars are provided on the clamping plate, and at least two of the locking holes are diagonally arranged on the clamping plate. The locking bars of the J-shaped clamps vertically pass through the locking holes on the clamping plate and are movably connected with the clamping plate by a locking mechanism. A back surface of the connecting plate is lap-jointed to the inner sides of hooks of each of the J-shaped clamps. A front surface of the connecting plate is opposite to a front surface of the clamping plate (22).

Abstract: A method for evaluating the breakage strength of first and second cemented surfaces of well cementation under a dynamic load, includes: producing a rock-set cement-casing composite structure sample; clamping the sample between an incident rod and an output rod of a Hopkinson rod, hitting the incident rod with a conical punch to generate incident waves, enabling the incident waves to pass through the sample to generate reflected waves and projected waves, recording dynamic strain signals of incident waves, reflected waves and projected waves, and converting the dynamic strain signals into electrical signals and transmitting the electrical signals to a computer; recording the process and the corresponding time point from breakage starting to a complete breakage of the first and second cemented surfaces by a photographic instrument; obtaining a strain rate time travel curve and a stress-strain curve, and obtaining the corresponding breakage strength by analyzing the curve peak points.

Abstract: An electric machine may include a housing having a front end and a back end where the front end is the primary mechanical coupling end. The electric machine may include a stator and a rotor arranged within the housing and a shaft connected to the rotor. The shaft may extend out of the front end of the housing and the shaft may be configured to be rotationally driven by the rotor or to rotationally drive the rotor. The electric machine may also include an electronic controller configured to control operations of the rotor and stator and the electronic controller may be mounted on the front end of the housing.