5results about How to "Low maneuverability" patented technology

A first variable relief valve (51A) allows the flow of a hydraulic oil from a first main line (37A) to a second main line (37B) to be in a blocking state in a case the pressure of the first main line (37A) is a first pressure or less and to be in a communicating state in a case the pressure of the first main line (37A) exceeds the first pressure. A second variable relief valve (51B) allows the flow of a hydraulic oil from the second main line (37B) to the first main line (37A) to be in a blocking state in a case the pressure of the second main line (37B) is a second pressure or less and to be in a communicating state in a case the pressure of the second main line (37B) exceeds the second pressure. A "power transmission capability from a first hydraulic pump motor (36) to a second hydraulic pump motor (38) " and a "power transmission capability from the second hydraulic pump motor (38) to the first hydraulic pump motor (36) " are allowed to be different from each other by setting the first pressure of the first variable relief valve (51A) to be higher than the second pressure of the second variable relief valve (51B).

This invention discloses a high-conductivity emulsion-type intelligent fracturing fluid for oil and gas field enhancement and its preparation method. This fracturing fluid aims to solve the technical problem of the contradiction between the proppant-carrying capacity and the post-colloidal conductivity of traditional fracturing fluids in deep wells under high temperature and high salinity environments. Its core lies in the introduction of a temperature- and salt-responsive zirconium-silicon hybrid nano-crosslinking agent and biomimetic surface-modified layered silicate nanosheets. In preparation, a water-in-oil base emulsion is first formed, followed by the sequential addition of the two modified compounds. The nano-crosslinking agent is prepared through silanization and polymer grafting processes, enabling intelligent activation and viscosity enhancement under formation conditions. The nanosheets are prepared through montmorillonite exfoliation and biomimetic dopamine coating modification, combining drag reduction and proppant surface modification functions. This fracturing fluid system achieves intelligent response with low friction during pumping, high proppant-carrying capacity in the formation, and the formation of high-conductivity channels after colloidal breakdown, making it particularly suitable for fracturing and stimulation of deep and unconventional reservoirs.

Provided is a weighing sales system that can provide any amount of articles. A weighing sales system 1 is provided with a plurality of weighing devices 3 that weigh articles and an information terminal 3. The weighing device 3 is provided with a detection processing unit 301 that detects a weight of articles and a communication processing unit 303 that transmits the detected weight of the articles and predetermined identification information, and an information terminal 4 is provided with a communication processing unit 406 that receives the weight of the articles and the predetermined identification information and an extraction processing unit 402 that acquires article information from an article information storage unit 4A based on the prescribed identification information.

A camera device, comprising a first sensor configured to capture an optical image of a subject incident via a first lens unit, the camera device comprising: a display panel, an eyepiece portion, a second sensor capable of capturing an eye of a user viewing the display panel by gazing at the eyepiece portion and different from the first sensor, an optical path splitting unit configured to guide light from the display panel to the outside of the camera device and to guide the external light to the second sensor, and a second lens unit arranged between the optical path splitting unit and the eyepiece portion, wherein the second sensor is arranged on a side different from a side on which a gripping area of ​​the camera device is arranged relative to an optical axis of the second lens unit.

A method of producing a dental composition in which a first component has a second component dispersed therein is provided. The first component is a paste including a first polymerizable monomer that is a liquid, the second component includes a solvent in which the first polymerizable monomer is insoluble, and the method includes a step of mixing the first component and the second component.