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40results about How to "Gain stability" patented technology

Biocompatible nano composite drug carrier with synergistic anti-tumor effect, drug with synergistic anti-tumor effect and preparation methods of biocompatible nano composite drug carrier and drug

The invention discloses a biocompatible nano composite drug carrier with a synergistic anti-tumor effect, a drug with a synergistic anti-tumor effect, and preparation methods of the biocompatible nano composite drug carrier and the drug. The biocompatible nano composite drug carrier provided by the invention comprises a core, a connecting layer coating the core and a shell layer coating the connecting layer, wherein the core is provided with degradable porous inorganic nano particles already absorbing anti-cancer drugs; the connecting layer is formed by polyelectrolyte; the shell layer is alternately assembled by protein and polyelectrolyte layer by layer; and the protein is selected from one tumor necrosis factor superfamily member. The invention has the advantages that by utilizing a layer-by-layer assembly technology, a great quantity of protein/polysaccharide nano composite drug carriers with core-shell structures can be prepared simply and conveniently; and the nano composite drug carrier can be used for wrapping and releasing water-soluble drugs, so that the cost is effectively reduced and scale production is easy to realize.
Owner:INST OF CHEM CHINESE ACAD OF SCI

Emulsion matrix stability detection device

The invention discloses an emulsion matrix stability detection device which comprises an emulsion matrix container, an ultrasonic generator, an ultrasonic transmitting transducer, a timer, an ultrasonic receiving transducer, an interface converter, a temperature sensor, a signal transmission converter and an information processing unit, wherein the ultrasonic transmitting transducer, the ultrasonic receiving transducer and the temperature sensor are mounted on the emulsion matrix container; a signal output interface of the ultrasonic generator is connected with a signal input interface of the ultrasonic transmitting transducer; a signal output interface of the ultrasonic transmitting transducer is connected with the timer; a signal output interface of the ultrasonic receiving transducer is connected with the timer; the timer is connected with the interface converter; a signal output interface of the temperature sensor is connected with an analog signal input interface of the signal transmission converter; an interface of the interface converter and an interface of the signal transmission converter are connected with corresponding interfaces of the information processing unit respectively. The device is simple in structure, high in measurement precision and convenient to maintain and operate; the time for measuring the emulsion matrix stability is less than 1 second.
Owner:CHINA COAL TECH & ENG GRP HUAIBEIBLASTING TECHN RES INST

System and method of testing stability of integrated optical strong electric field sensor

The invention discloses a system and a method of testing stability of an integrated optical strong electric field sensor, which relate to the technical field of electric field monitoring and solve thetechnical problem that the existing integrated optical strong electric field sensor stability test system can not test the stability of the integrated optical strong electric field sensor under different environment temperature. The system for testing the stability of the integrated optical strong electric field sensor comprises a temperature and humidity control box, a high voltage power supply,an integrated optical strong electric field sensor processing unit and an oscilloscope connected with the high voltage power supply and the integrated optical strong electric field sensor processingunit, wherein the temperature and humidity control box is internally provided with two opposite planar electrodes, one planar electrode is connected with the high voltage power supply, the other planar electrode is grounded, the integrated optical strong electric field sensor is arranged between the two planar electrodes, and the integrated optical strong electric field sensor is connected with the integrated optical strong electric field sensor processing unit. The system and the method of the invention are used for testing the stability of the integrated optical strong electric field sensor.
Owner:ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD +2

Frequency domain finite element total absorption PML method applicable to TTI medium

The invention relates to a frequency domain finite element total absorption PML method applicable to a TTI medium. A frequency domain finite element total absorption PML boundary condition is constructed, high-precision acoustic logging simulation in a TTI medium complex borehole condition is realized, a numerical simulation result in agreement with the theoretical solution is obtained, and a solid data support is provided for manufacturing of an acoustic logging instrument and evaluation on a complex oil and gas reservoir layer by using the acoustic logging data. Scaling factors of X-direction and Z-direction absorption boundaries in C-PML and scaling factors of X-direction and Z-direction absorption boundaries in M-PML are integrated to be fused to evanescent wave suppression factors and tangential attenuation factors for totally-absorbed X-direction and Z-direction absorption boundaries. The method of the invention has the beneficial effects that through constructing the total absorption PML boundary condition, advantages of the C-PML and the M-PML are considered, and the high efficiency when the frequency domain finite element PML absorption boundary solves the TTI medium is realized. Acoustic logging numerical simulation on a TTI shale formation can be carried out accurately and high efficiently, and essential theoretical basis is provided for the manufacturing of the acoustic logging instrument and development of the shale gas reservoir.
Owner:CHINA UNIV OF PETROLEUM (BEIJING)

Frequency domain finite element total absorption pml method for tti media

The invention relates to a frequency domain finite element total absorption PML method applicable to a TTI medium. A frequency domain finite element total absorption PML boundary condition is constructed, high-precision acoustic logging simulation in a TTI medium complex borehole condition is realized, a numerical simulation result in agreement with the theoretical solution is obtained, and a solid data support is provided for manufacturing of an acoustic logging instrument and evaluation on a complex oil and gas reservoir layer by using the acoustic logging data. Scaling factors of X-direction and Z-direction absorption boundaries in C-PML and scaling factors of X-direction and Z-direction absorption boundaries in M-PML are integrated to be fused to evanescent wave suppression factors and tangential attenuation factors for totally-absorbed X-direction and Z-direction absorption boundaries. The method of the invention has the beneficial effects that through constructing the total absorption PML boundary condition, advantages of the C-PML and the M-PML are considered, and the high efficiency when the frequency domain finite element PML absorption boundary solves the TTI medium is realized. Acoustic logging numerical simulation on a TTI shale formation can be carried out accurately and high efficiently, and essential theoretical basis is provided for the manufacturing of the acoustic logging instrument and development of the shale gas reservoir.
Owner:CHINA UNIV OF PETROLEUM (BEIJING)

Ventilation apparatus and method for operating such apparatus

A ventilation apparatus (1) for the supply and removal of air to and from rooms of a building, having a housing (2) which is arranged in a building wall (3) with one side face (4) toward the room interior (5) and with one side face (6) toward the exterior (7), with an air supply medium flow (9) entering the room interior (5) via an air delivery device (8), and an air removal medium flow (10) leaving the room interior (5) to the exterior (7), with a heat storage unit (11) for the transfer of heat from the air removal medium flow (10) to the air supply medium flow (9), and with a closure and opening device (12) for controlling the air flow, wherein the housing (2), being split in the height direction (H) by a partition floor (13), forms an upper level (14) and a lower level (15), and in thelength direction (L) the upper level (14) is divided by the closure and opening device (12) and the lower level (15) is divided by means of partition walls (16), thus forming two upper air flow ducts(17, 18) and two lower air flow ducts (19, 20), wherein the air delivery device (8) consists of a feed air fan (21) for the air supply medium flow (9) and of an exhaust air fan (22) for the air removal medium flow (10), which are continuously operated in an air delivery direction and connect the upper level (14) to the lower level (15), that the upper air flow ducts (17, 18) each have a heat storage unit (11) on the side face (6) of the housing (2) on the upper level (14), and a feed air filter element (23) is to be assigned between the heat storage unit (11) and the exterior (7), through which the air supply and removal medium flows (9, 10) can be made to flow continuously over the full area, reciprocally and in opposite directions in the air flow ducts (17, 18) with the closure and opening device (12) connected upstream, wherein the air supply and removal medium flow (9, 10) in the lower level (15) is made to flow uniformly through the air flow ducts (19, 20), wherein to the side face (6) of the housing (2) in the region of the inlet opening (27) of the lower air flow duct (20) there is arranged an exhaust air filter element (28) through which the air removal medium flow (10) always flows.
Owner:SIEGENIA AUBI KG
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