Abstract: The present invention relates to the field of profile control and flooding in oil fields, particularly to a colloidal nano-graphite-strengthened bulk gel system for dispersed particle gel, and composition thereof. The composition for bulk gel system, containing a polymeric matrix, a resin cross-linking agent, a coagulant, and colloidal nano-graphite, wherein, with respect to 100 parts by weight of the polymeric matrix, a content of the resin cross-linking agent is 30-150 parts by weight, a content of the coagulant is 5-100 parts by weight, and a content of the colloidal nano-graphite is 3-30 parts by weight; wherein, the polymeric matrix is partially hydrolyzed polyacrylamide with weight-average molecular weight within a range of 5,000,000-8,000,000 g/mol; the coagulant is one or more of chloride salt coagulant and alcohol amine coagulant.

Abstract: A diesel engine includes a cylinder head, a cylinder sleeve, a piston, an injector, and a combustion chamber. The top side of the piston includes an annular top surface, an annular collision belt and an annular cavity. The collision belt includes a collision surface, an upper guide surface, and a lower guide surface. An annular throat is formed between the upper guide surface and the cylinder head. The collision belt divides the combustion chamber into a headspace and a central portion. The volume of the headspace is more than three times of the volume of the central portion. A major portion of the fuel jet injected by the injector is directed into the headspace. The results are faster mixing of fuel and air and complete combustion in the combustion chamber, and a reduction of fuel consumption rate by 2%. A method for fuel distribution and combustion is also disclosed.

Abstract: A switching apparatus for a driving system includes a motor, a first function unit, a second function unit and a power switching unit. The power switching unit includes a planetary gear set connected to the motor and driven by the motor and a swinging mechanism connected to the planetary gear set and driven by the planetary gear set. The power switching unit is switchable between a first position, where the power switching unit is drivingly connected to the first function unit, and a second position, where the power switching unit is drivingly connected to the second function unit.

Abstract: The invention provides a modified graphite particle system for strengthening a polymer/binary/ternary composite oil displacement system. The modified graphite particle system comprises the following components: 1-5 parts by mass fraction dispersed graphite particles, 0.2-0.6 parts by mass fraction dispersant, 0.1-0.5 parts by mass fraction wettability modifier, and deionized water that accounts for the remaining content, based on 100 parts by total mass fraction of the components. In addition, the present invention also provides a preparation and a use of the modified graphite particle system for strengthening the polymer/binary/ternary composite oil displacement system.

Abstract: The invention provides a modified graphite particle system for strengthening a polymer/binary/ternary composite oil displacement system. The modified graphite particle system comprises the following components: 1-5 parts by mass fraction dispersed graphite particles, 0.2-0.6 parts by mass fraction dispersant, 0.1-0.5 parts by mass fraction wettability modifier, and deionized water that accounts for the remaining content, based on 100 parts by total mass fraction of the components. In addition, the present invention also provides a preparation and a use of the modified graphite particle system for strengthening the polymer/binary/ternary composite oil displacement system.

Abstract: A switching apparatus for a driving system includes a motor, a first function unit, a second function unit and a power switching unit. The power switching unit includes a planetary gear set connected to the motor and driven by the motor and a swinging mechanism connected to the planetary gear set and driven by the planetary gear set. The power switching unit is switchable between a first position, where the power switching unit is drivingly connected to the first function unit, and a second position, where the power switching unit is drivingly connected to the second function unit.

Abstract: A diesel combustion system including a piston, an annular impinging block, and a combustion chamber. The combustion chamber is divided by the annular impinging block into an upper chamber and a lower chamber. The annular impinging block includes a lower guide surface that is adjacent to the lower chamber and that extends from a trough line connected to the piston to a crest line. The ratios among the inner diameter of the top of the piston, the outer diameter of the top of the piston, the diameter of the trough line, and the diameter of the crest line define the shape of the combustion chamber which leads to increased rate of combustion, reduced soot emission, and increased fuel efficiency.

Abstract: The present invention provides a deep sea water extract and a method for inhibiting the proliferation of Helicobacter pylori strains using the deep sea water extract, wherein the deep sea water extract has an organic component with a molecular weight of 685 to 690, 733 to 738 and 1,070 to 1,075. The deep sea water extract of the present invention can be applied in the prevention and treatment of H pylori infection.

Abstract: A combustion chamber of diesel engine. The diesel engine includes a cylinder head, a cylinder sleeve, and a piston. The cylinder head, the cylinder sleeve, and the piston form the combustion chamber. The combustion chamber includes a headspace; a central part; and a collision belt. The collision belt includes a collision surface, an upper guide surface, and a lower guide surface. The collision belt is configured to connect the headspace and the central part. The collision surface is an inclined surface, a convex surface, or a concave surface. The first tapered surface includes a second inclined surface, a second curved surface, and a third inclined surface; the second tapered surface includes a fourth inclined surface, a third curved surface, and a second concave surface; the first curved surface includes a second convex surface and a third concave surface.

Abstract: A method for producing mineral water from deep sea water includes: (a) filtering deep sea water using a first nano-filtration membrane, which is able to retain sulfate ions from permeating therethrough, so as to obtain sulfate ion-rich concentrated water and first permeate water; and (b) filtering the first NF-permeate water using a second NF membrane, which is able to retain calcium ions and magnesium ions from permeating therethrough, so as to obtain mineral water rich in calcium ions and magnesium ions.

Abstract: A gear drive system includes a securing panel, a first slave gear, a drive gear, and an adjusting structure. The securing panel includes a panel body, a rack, and a rotating shaft. An upper part of the first slave gear is adjacent to the rack and aligned with the rack. The drive gear engages the first slave gear. The adjusting structure includes an elastic element, a slave element pivotally mounted to the panel body, and a third slave gear. The third slave gear defines a rotating hole. The rotating shaft is received in the rotating hole. The second slave gear is movable related to the panel body to enable the rotating shaft to be located in different positions of the rotating hole. The third slave gear is driven to move and rotate. The slave element is driven to rotate to press the elastic element.

Abstract: Systems and methods for fluid harvesting and surface cleaning. A fluid harvesting device comprises a harvester having a hydrophobic surface and a collection device, adjacent the harvester, which receives fluid from the surface of the harvester.

Abstract: A method and apparatus for managing at least one NV memory are provided. Each NV memory comprises a plurality of physical blocks. The method includes: managing the physical blocks of each of non-volatile (NV) memory according to a block address mapping algorithm in a control module of a memory management apparatus; managing the plurality of pseudo blocks according to a block address translation rule in a management module of the memory management apparatus; and when a command being detected, determining a specific pseudo block address corresponding to a specific block logical address in the command according to the block address translation rule, then determining at least one group of specific physical block addresses corresponding to the specific pseudo block address according to the block address mapping algorithm, and then processing a specific physical block group corresponding to the group of specific physical block addresses according to the command.

Abstract: A method for manufacturing a biomedical signal conductive membrane includes providing a natural polymer material, adding an acid solution for making the natural polymer material dissolved in the acid solution to form a viscous liquid mixture, performing a dry step for drying the viscous liquid mixture to form an initial stage of membrane, wherein the structure of natural polymer material within the initial stage of membrane is a straight chain, providing a cross-linking agent to perform a cross-linking step for transforming the initial stage of membrane into a gel membrane, wherein the structure of natural polymer material within the gel membrane is a cross-linked network, and performing a rinse step for removing the cross-linking agent and keeping a plurality of water molecules remaining within the cross-linked network of natural polymer material.

Abstract: A diesel combustion system including an injector and a combustion chamber. The combustion chamber is formed by a cylinder head, a cylinder liner, and a piston. The combustion chamber includes an upper layer and a lower layer. The diameter D1 of the upper layer is larger than the diameter D2 of the lower layer. A junction of the upper layer and the lower layer is provided with an impinging block for rebounding the diesel fuel spray. The impinging block includes an impinging surface, an upper guide surface, and a lower guide surface. When in use, part of the diesel fuel spray is rebounded by the impinging surface, and part of the diesel fuel spray is diffused along the upper guide surface and the lower guide surface of the impinging block to achieve double-layered split flow of the diesel fuel.

Abstract: A scanning apparatus for scanning a large scale document, includes a main body, a scanning sensor, and a document transferring apparatus. The main body includes a transparent document placing portion. The scanning sensor is slidably mounted below the document placing portion. A scale of the scanning sensor is smaller than a scale of the transparent document placing portion. The transparent document placing portion supports the document thereon. The scanning sensor moves in at least two dimensionalities below different portions of the transparent document placing portion to scan different portions of the document.

Abstract: A gear drive system includes a securing panel, a first slave gear, a drive gear, and an adjusting structure. The securing panel includes a panel body, a rack, and a rotating shaft. An upper part of the first slave gear is adjacent to the rack and aligned with the rack. The drive gear engages the first slave gear. The adjusting structure includes an elastic element, a slave element pivotally mounted to the panel body, and a third slave gear. The third slave gear defines a rotating hole. The rotating shaft is received in the rotating hole. The second slave gear is movable related to the panel body to enable the rotating shaft to be located in different positions of the rotating hole. The third slave gear is driven to move and rotate. The slave element is driven to rotate to press the elastic element.

Abstract: A method for performing display control is provided, where the method is applied to an electronic device. The method includes: managing a plurality of physical blocks of at least one non-volatile (NV) memory according to a block address translation rule, the block address translation rule of both of one-to-multiple block address translation and multiple-to-one block address translation; and when it is detected that erasing a specific logical block represented by a specific block logical address is required, determining a set of block physical addresses corresponding to the specific block logical address according to the block address translation rule and erasing a set of physical blocks represented by the set of block physical addresses within the plurality of physical blocks. An associated apparatus is also provided.

Abstract: A control system of a three phase induction motor driver and a field weakening control method. The control system includes a driver control module, a field weakening control module, an AC power source, a power loop module, a current sensing module, and an AC motor module. A switching period of an inverter PWM control is used for the AC motor and an inverter control thereof to analyze and obtain the difference value of the sum of effective switching times. The field weakening control module generates an adaptive magnetizing current command in real time to achieve a maximum utilization of a DC link voltage so as to let the AC motor module achieve maximum output torque under different field weakening regions of different speeds when a rated speed is exceeded.

Abstract: A case structure of a ground rod includes a first block having a positioning hole, a second block having a positioning hole, a through-hole and a gap communicating with the through-hole. The positioning holes of the first and second blocks are capable of being extended through by a fixing member to adjust a width of the gap.