45 results about "Differential effects" patented technology

A means is provided to estimate the amount of frequency deviation experienced in a precision resonator resulting from the effects of previous thermal history, acceleration, or aging by determining the differential effect of the perturbing condition on different resonant modes in the same resonator or on different resonators exposed to the same environment. The measurements may be made simultaneously, or sequentially against an independent frequency source. Residual frequency hysteresis effects may be determined in connection with an independent temperature sensor if the exact temperature in not known.

The invention relates to the fields of quantum secret communication, weak ultrared detection, and the like, and provides an impulse gate-control low-pass filtering ultrared single-photon detector. Theimpulse gate-control low-pass filtering ultrared single-photon detector comprises an impulse gate-control power source, an In-Ga-As-In-P avalanche photodiode circuit, a DC voltage baising circuit, alow-pass filter, a high-speed wideband amplifier, a ultra-high-speed comparator and a counter, wherein gigahertz (GHz) impulse signals output by the impulse gate-control power source are used as gatecontrol signals of the In-Ga-As-In-P avalanche photodiode circuit, and spike noise signals caused by the junction capacitance differential effect of In-Ga-As-In-P avalanche photodiodes by the low-passfilter are used for filtering in a low-pass mode. The gigahertz impulse gate-control low-pass filtering ultrared single-photon detector solves the problem of spike noise interference in the prior art, increases the detection sensitivity of the avalanche signals and can be used for detecting GHz high-speed ultrared photon.

The invention discloses a conduction time generation circuit for a power supply converter, and a power supply converter. According to the invention, a band-pass filtering circuit is additionally arranged, DC components of second reference signals are equal to first reference signals, a differentiating circuit has a differential effect, can rapidly react to change of output voltages, timely performs feedback and adjustment, and the change trench of AC components of the second reference signals is opposite to the change trench of the output voltages. According to the invention, in case of abrupt change of the output voltages, the second reference signals can timely perform feedback and adjustment so as to reduce influences generated due to the abrupt change of the output voltages and enable the output voltages to be rapidly recovered to be constant.

The invention relates to the fields of quantum secret communication, weak ultrared detection, and the like, and provides a ultrared single-photon detector. The ultrared single-photon detector comprises a sine-wave gate-control power source, an In-Ga-As-In-P avalanche photodiode circuit, a DC voltage baising circuit, a semiconductor temperature-control circuit, a low-pass filter, a high-speed wideband amplifier, a ultra-high-speed comparator and a counter, wherein sine waves which have the frequency of gigahertz (GHz) and are output by the sine-wave gate-control power source are used as gate control signals of the In-Ga-As-In-P avalanche photodiode circuit, and spike noise caused by junction capacitance differential effect for the low pass filter is used for filtering in a low-pass mode. The gigahertz sine-wave gate-control low-pass filtering ultrared single-photon detector solves the problem of spike noise interference in the prior art, increases the detection sensitivity of avalanchesignals and is used for detecting GHz high-speed ultrared photon.

The invention relates to a wheel-side differential lock axle for an engineering vehicle and belongs to the technical field of manufacturing of engineering vehicle chassis type rear axle assemblies. The wheel-side differential lock axle comprises a rear axle housing assembly, a main reducer assembly, a hub brake drum assembly, a brake assembly and a half axle, wherein the main reducer assembly comprises a main reducer housing, a working cylinder assembly, a shifting fork shaft, a shifting fork, a fixed meshing sleeve, a slidable meshing sleeve, a half axle gear, a left differential carrier, a right differential carrier, a driven bevel gear, a cross axle, a planet gear, a drive bevel gear, a flange assembly and the like. The wheel-side differential lock axle has the advantages that when the wheels of the engineering vehicle traveling on a road surface with bad working conditions slip, the meshing sleeves of the differential lock structure allow the differential carriers and the half axle to be integrally connected so as to allow a differential mechanism to lose the differential effect temporarily, and the vehicle can travel normally; the wheel-side differential lock axle is high in bearing capacity, high in fatigue resistance, good in brake performance and the like, the passing capacity of the whole engineering vehicle is good, and the wheel-side differential lock axle is suitable for being used by various engineering vehicles in construction sites of various working conditions.

The invention discloses a bionic moisture-permeable and sweat-discharge yarn and a preparation device and method thereof. The moisture-permeable and sweat-discharge yarn is internally provided with a tree-shaped cross network channel for simulating an internal water conveying channel of a plant. The preparation device comprises an insulating conical cover, and air nozzles are symmetrically arranged on the two sides of the inner wall of the insulating conical cover; a metal rod with a metal circular ring at one end is arranged on the lower portion of each air nozzle, and an electrostatic spinning sprayer is arranged below each metal circular ring. The preparation method comprises the steps that yarns of core layer fibers penetrate through the center from the bottom of the insulating conical cover to the top of the insulating conical cover, and air in the insulating conical cover spirally moves along the inner wall at a high speed to drive electrostatic spinning nanofibers to move spirally, so that the yarns are wrapped with the nanofibers, and the prepared moisture-permeable and sweat-discharge yarns are exposed from the top of the insulating conical cover. The water guiding channel in the plant is simulated, the pressure difference formed due to different sizes of the gaps of the surface and inner layers is used for generating the differential effect, the moisture guiding capability is obviously enhanced, and the one-way moisture guiding capacity is achieved.

The invention discloses a differential electric motor. A motor stator used for being connected with an external power source to generate an electromagnetic field is fixedly arranged on a middle section of a body, and motor rotors driven to rotate by the electromagnetic field of the motor stator are arranged on two sides of the body respectively through a shaft. The whole differential electric motor can be installed on a vehicle body of an electric vehicle through the body, the motor stator is connected with a power supply system of the electric vehicle, and the two motor rotors are connected with transmission wheels on the left and the right of the electric vehicle respectively; when the vehicle body travels on a curved road or turns, due to the fact that the two motor rotors connected with the transmission wheels rotate relative to the motor stator respectively, the friction resistance of a road surface can be automatically reflected, an asynchronous differential effect is generated naturally, the vehicle body has the good steering performance, and improper abrasion of the transmission wheels can be avoided.

The present invention demonstrates that defined, specific GAG molecules have discerned differential effects, and that different types of cancers are prevented from proliferating and/or killed by oligosaccharides of different sizes; one size sugar does not treat all cancers effectively. Likewise, certain size GAGs have more potent angiogenic properties; thus, mixtures of different sizes of GAG molecules are not optimal. Therefore, the present invention is directed to methods of “personalized medicine”, in which customized defined, specific GAG molecules are administered to a patient, wherein the defined, specific GAG molecules are chosen based on the specific ailment from which the patient is suffering and/or the response of in vitro testing of the ability of the defined, specific GAG molecules to treat, inhibit and/or prevent the ailment in a sample from the patient.

The invention provides a drug for treating hepatocellular carcinoma. The drug comprises a glucagon-like peptide-1 receptor stimulant and/or a dipeptidyl peptidase 4 inhibitor. The invention further provides application of the glucagon-like peptide-1 receptor stimulant and/or dipeptidyl peptidase 4 inhibitor to preparation of a drug for preventing or treating hepatocellular carcinoma, to preparation of a drug for liver function recovery after liver transplantation, and to preparation of a drug for preventing liver cancer relapse after liver transplantation. The glucagon-like peptide-1 receptor stimulant and/or dipeptidyl peptidase 4 inhibitor generates a differential effect in a tissue specificity way, so as to inhibit cancer cell proliferation and promote cancer cell apoptosis, meanwhile, liver cells are protected against apoptosis, so that obesity-dependent liver cancer or non-dependent liver cancer can be treated or weakened.

The invention provides a mini-tiller with differential and power switching functions. The mini-tiller comprises a gearbox and a transmission shaft, wherein a gear shifting gear is arranged on the transmission shaft, a gear shifting pulling mechanism is arranged on the gearbox, a power switching mechanism is also arranged on the gearbox, and comprises a second spline sleeve and a power switching pulling mechanism, the second spline sleeve is arranged on the front end of the transmission shaft in a sleeving manner, the power switching pulling mechanism is arranged on the gearbox, a position limiting element is arranged on the power switching pulling mechanism, and a stop element is arranged on the gear shifting pulling mechanism. The mini-tiller has the advantages that the switching-in and switching-off operations of the power of the work mechanism can be realized through pulling the second spline sleeve to realize the combination and the separation with a power input shaft of a work mechanism, through the matching of the position limiting element and the stop element, the pulling to a retreating gear in the work process is avoided, people injury due to backwards retreating mini-tiller in the work process is prevented, the differential effect can be realized, further, the steering in the walking process is convenient to realize, the operation is convenient, and meanwhile, the differential lock function is realized.

The invention relates to a wheel of a ladder-climbing vehicle. The structure is as follows: a transmission shaft is fixedly connected with a large bevel gear at one side, the large bevel gear at one side is engaged with a small bevel gear, the small bevel gear can rotate on a cross axle, the cross axle and a differential shell are fixedly connected with a multi-wheel carrier, a large bevel gear at the other side and a small wheel maintain a transmission relation via a transmission mechanism, and a rotating shaft of the transmission mechanism is fixed on the multi-wheel carrier. The functions are as follows: during movement on the flat ground, the multi-wheel carrier does not overturn, the differential shell and the cross axle fixedly connected with the multi-wheel carrier do not rotate. The transmission shaft drives the large bevel gear fixedly connected with the transmission shaft to rotate, the large bevel gear drives the small bevel gear to rotate, the rotation of the small bevel gear drives the large bevel gear at the other side and a sun gear to rotate, and the transmission device enables the small wheel to rotate. During ladder climbing up and down, the transmission shaft drives the large bevel gear fixedly connected with the transmission shaft to rotate, the small bevel gear performs revolution and rotation, the cross axle performs revolution, the multi-wheel carrier performs revolution, and the large bevel gear at the other side and the sun gear rotate so that the small wheel rotates. The rotation speed of the small wheel and the revolution speed of the wheel carrier are automatically adjusted via the differential effect.

The invention belongs to the field of electromagnetism flaw detection applications in electromagnetism detecting techniques, relates to a rail damage testing device based on a three-way electromagnetism differential sensor, which comprises the three-way electromagnetism differential sensor, a signal processing circuit, an FPGA (Field Programmable Gate Array) control chip, and an upper computer, wherein the three-way electromagnetism differential sensor comprises a sensor bracket; three bifurcations in three directions are arranged at the front part of the bracket; each bifurcation is provided with a probe composed of a testing coil and an exciting coil, and the exciting coil is wound at the middle section of the bifurcation; the testing coil is coiled by a conducting wire and is divided into two parts with same winding turns and opposite coiling directions according to different coiling directions and positions so as to produce differential effects; and three probes are used for detecting whether a rail web, a rail jaw, and a rail chair are damaged respectively. Meanwhile, through the adoption of the device, the invention provides a rail damage testing method. The device has the advantages of simplicity, quickness, and lower cost.

The invention provides an off-location technology based REBCO superconducting film growing continuous device. A reel-to-reel multi-pass reciprocating film coating unit deposits a target material ontoa base band to form a metal film through magnetron sputtering. The base band passes through two slits of a vacuum trap successively and gets into three quartz tubes to be subjected to heat treatment,so that the metal film on the base band absorbs oxygen to be converted into a superconducting phase superconducting film. Through the off-location technology based REBCO superconducting film growing continuous device, the technical defects are overcome; the off-location technology based REBCO superconducting film growing continuous device conducts deposition coating through the magnetron sputtering off-location technology; and the vacuum trap is introduced to serve as a transition device to enable the film coating and heat treatment processes to change into a continuous system and meanwhile can ensure that the film coating and heat treatment processes are non-interfering, that is, film coating and superconducting phase implementation can be carried out in the two different and continuous processes. The off-location technology based REBCO superconducting film growing continuous device can achieve the vacuum differential effect through a set of quartz tubes of different thicknesses and conducts heat treatment on the film under different oxygen partial pressures to realize conversion of the film from the metal film to the superconducting film

The invention discloses a micro-drive system and a clamping system comprising the micro-drive system. The micro-drive system is based on a shape memory effect and is driven by two shape memory alloy rods which are mutually perpendicular, a first shape memory alloy rod is electrified and contracts to push a drive piston to move forwards through a transmission rod assembly, a second shape memory alloy rod is electrified and contracts to drive the drive piston to reset, and at the same time, the two shape memory alloy rods can respectively serve as a drawing power source of each other to produce plastic deformation. The clamping system comprises the micro-drive system and an internal reflux area differential stroke amplifying device, due to the fact that a reflux hole is formed in an output piston, the differential effect is achieved, the effective acting area of the output piston is made to be only the cross sectional area of a piston rod, and therefore the amplification coefficient is improved on the basis of reduction of the size of the stroke amplifying device. Compared with a traditional drive clamping device, the clamping system is small in size, simple in structure, good in controllability, fewer in energy conversion steps, high in utilization rate of energy, free of pollution, and capable of protecting environment.

The invention relates to a differential linkage device of a washing machine. The differential linkage device of the washing machine is provided with a drive shaft and a drive shaft sleeve. The drive shaft is rotationally arranged in the drive shaft sleeve and a clutch linkage mechanism is arranged between the drive shaft and the drive shaft sleeve; the clutch linkage mechanism is provided with an electromagnetic clutch assembly and a cross sliding block differential assembly. According to the differential linkage device of the washing machine, an electromagnetic clutch and a cross sliding block differential linkage mechanism are adopted, so that the differential linkage mechanism of the washing machine is greatly simplified and the differential effect is guaranteed when the washing machine is under the washing and dewatering conditions. The differential linkage device of the washing machine is simple in structure and small in size, under the washing condition, the rotation speed of an inner barrel is relatively lower than that of an impeller, and therefore winding of clothes and abrasion caused by the inner barrel to the clothes are reduced.

Drugs are screened for affects on inhibiting efflux pumps and blocking gap junction communication in tumors by culturing cells to thereby form self-assembled spheroids and incubating the spheroids. Uptake of a substrate of the efflux pump and distribution of a substrate for the efflux pump within the spheroids is imaged to thereby select drugs that inhibit the efflux pump or do not block gap junction communication. Selected drugs can then be employed to treat a tumor.

The invention discloses a vortex spinning sports fabric, which comprises a fabric body; the fabric body adopts a double-sided fisheye structure; the inner layer of the fabric body has a large thread fineness, forming a thick capillary structure; The fineness of the silk thread in the layer is small, forming a fine capillary structure; the silk thread in the outer layer is a blended vortex yarn of hemp fiber and wool fiber; the silk thread in the inner layer is a hollow core-spun yarn. The invention has good moisture absorption and perspiration performance, and is comfortable to wear. The reverse side of the fabric forms a slender mesh. The inner silk thread is a hollow core-spun yarn, which has good bulkiness, good heat preservation effect, and the front of the fabric is flat. The outer silk thread is made of hemp fiber and wool fiber The blended vortex yarn has good heat conduction effect and can dissipate heat quickly, and can form a differential effect inside and outside to help sweat discharge.

The invention provides a differential sampling temperature control method of a heating system. The differential sampling temperature control method comprises the following steps: firstly, acquiring the control target temperature, and sending the control target temperature to a controller; then, opening a temperature caching queue in the storage space of the controller, placing the temperature in each sampling at the tail end of the temperature caching queue, and updating the temperature caching queue in a first-in and first-out manner; then, subtracting the temperature in the temperature caching queue from the target temperature to obtain a temperature feedback error, which is used as an error input variable of a PID controller; using the temperature change speed before and after samplingas an error change rate input variable of the PID controller; controlling the temperature of the heating system through the PID controller. In allusion to a temperature control system having a slow changing process, different sampling frequencies are adopted for the error and the error change rate in a feedback link and the sampling period of the error change rate is set to be several times of theerror sampling period, so that the differential effect of a PID algorithm is enhanced and actuator oscillation of the temperature control system is suppressed.

The invention provides a running brake system and a vehicle. A rear brake loop in the running brake system comprises a second cavity of a mater pump assembly, a central brake assembly, a left differential lock assembly and a right differential lock assembly. When a pedal plate of a brake pedal plate assembly is treaded, the left differential lock assembly and the right differential lock assembly enable a rear axle differential mechanism to lose the differential effect under the hydraulic effect. The running brake system solves the problems that an existing running brake system is poor in heat-fading resistance and reliability, the phenomenon that when the vehicle is braked, due to affected by poor part consistency, large differences exist in brake torque of a left wheel and a right wheel of a rear axle is avoided, and the brake stability is improved.