Abstract: A method of preparation of 5,6-dimethylxanthone-4-acetic acid (DMXAA) and derivatives thereof. The derivatives are represented by formula (I), wherein R represents totally 1 to 2 substitutes at 1, 2, 3, 7, and 8 position selected from a lower alkyl, halogen, CF3, CN, NO2, NH2, CH2COOH, OR2, OH, NHSO2R2, SR2, CH2CONHR2 or NHR2, and R2 represents a lower alkyl, or a lower alkyl having OH, NH2, or OCH3. The invention further provides a pharmaceutical composition having such derivatives used as excellent antitumor and antibacterial agents.

Abstract: A device for Computer Simulated Marking Targeting Biopsy (CSMTB) has at least a space locator, and a main control module, including a surface model sub-module, a positioning sub-module, a tracking sub-module, a virtual endoscope sub-module, and a marking targeting biopsy sub-module. The device accurately detects minimal gastric lesions, and reduces pain to patients and thus decreases the workload of a doctor.

Abstract: A shock absorption device for a motor bearing system, including a washer, an end cover, a bearing, a rotating shaft, a retaining ring, a cap, and a shock absorption pad. The bearing is disposed in a bearing seat of the end cover. The rotating shaft abuts against the bearing. The washer is disposed on the rotating shaft and on one side of the bearing. The retaining ring is buckled on the rotating shaft and axially positions the washer. The cap is disposed on the periphery of the washer, and on the end cover. The shock absorption pad is disposed on the end cover. The washer is disposed between the shock absorption pad and the retaining ring. The shock absorption pad axially separates the washer from the bearing, and end surface of the bearing seat.

Abstract: A motor, including a body, including a housing, a stator, and a rotor, and a controller, including a control box, and a control circuit board. The body is disposed at the top of the motor. The controller is disposed at the bottom of the motor. The control circuit board is disposed in the control box. A rotary dip switch is disposed at the bottom of the control box. The control circuit board includes a power board, and a control board. The rotary dip switch is electrically connected to the control board. The rotary dip switch controls different functions of the motor.

Abstract: A circuit breaker with a short circuit self-locking function, a short circuit self-locking mechanism is disposed in the circuit breaker, and comprises a self-locking mechanism and a reset mechanism. As the circuit breaker is opened, it cannot be directly closed, whereby reminding an operator of a short circuit fault.

Abstract: A method for producing synthetic gas from biomass by high temperature gasification, by: feeding biomass, carbonizing to yield pyrolysis gas and charcoal, pulverizing the charcoal, and gasifying in a gasifier. The heat source for the carbonizing step comes from a direct combustion reaction between external combustible gas and external oxygen in a carbonization furnace. Also provided is a device for producing synthetic gas from biomass by high temperature gasification, containing at least: a supercharging feeding system for biomass, a carbonization furnace containing at least a burner nozzle, a pulverizing system, a transportation system for charcoal powder, a gasifier, a pneumatic conveying system, and a plurality of connecting pipes therefor; the burner nozzle of the carbonization furnace is connected to an external combustible gas pipe and an external oxygen pipe respectively.

Abstract: A method for producing transparent conductive glass by a) depositing two barrier layers on the surface of hot glass by chemical vapor deposition; and b) depositing two conductive film layers on the surface of the glass ribbon having the two barrier layers. The method is easy to control and suitable for mass production. The resultant transparent conductive glass has low surface resistance and moderate haze.

Abstract: A compound represented by Formula I, wherein M represents Na+, K+, NH4+, or Cs+; and 1) when Y represents SO42?: when m=1, then n=1; and when m=0.5, then n=1.5; and 2) when Y represents PO43?, when m=1, then n=2. The compound has good solubility and high bioavailability and can be formulated into oral pharmaceutical preparations and pharmaceutical preparations for injections.

Abstract: A method for producing ethylene glycol, including (a) adding a polyhydroxy compound and water to a sealed high-pressure reactor, (b) removing air and introducing hydrogen, and (c) allowing the polyhydroxy compound to react in the presence of a catalyst while stiffing. The catalyst includes a first active ingredient and a second active ingredient. The first active ingredient includes a transition metal of Group 8, 9, or 10 selected from iron, cobalt, nickel, ruthenium, rhodium, palladium, iridium, and platinum, and/or a mixture thereof. The second active ingredient includes a metallic state of molybdenum and/or tungsten, or a carbide, nitride, or phosphide thereof. The method is carried out at a hydrogen pressure of 1-12 MPa, at a temperature of 120-300° C. for not less than 5 min in a one-step catalytic reaction. The efficiency, selectivity, and the yield of ethylene glycol are high. The preparation process is simple and the materials used are renewable.

Abstract: A washer, including a central axial hole, a first oil retainer, and at least one oil-storage groove. The central axial hole allows a motor shaft to pass therethrough. The first oil retainer is formed on one side of the washer. The oil-storage groove is disposed on the surface of the first oil retainer.

Abstract: A combination hole punching and book binding machine having a worktable and an electric motor disposed fixedly thereon, a left changeover panel and a right changeover panel being symmetrically disposed on the worktable, a press knife assembly being disposed between the left changeover panel and the right changeover panel. By driving the left changeover panel and the right changeover panel, the press knife assembly can be combined as needed. Meanwhile, the quantity of the press knives is regulated, and thereby the number, pass, and pitch of holes is adjusted.

Abstract: A process for producing a Donepezil derivative represented by the formula (I), wherein R1, R2, R3, and R4 each independently represents H, F, an alkyl having from 1 to 4 carbon atoms, or an alkoxy having from 1 to 4 carbon atoms; R5 represents a phenyl or a substituted phenyl; and n is an integer from 0 to 2, characterized in that the process comprises: (a) a reaction of 4-pyridinecarboxaldehyde with a compound of formula (II) in the presence of a strong acid HX to form a compound of formula (III); (b) a catalytic hydrogenation of a compound of formula (III) or a compound of formula (V) to yield a compound of formula (IV); and (c) an alkylation reaction of a compound of formula (IV) to yield a compound of formula (I).

Abstract: A glass lampshade comprising a fusion body of crystal grain glass, an upper crystal glass plate, a lower crystal glass plate, and a curing gel layer. The upper crystal glass plate is attached to the lower crystal plate via the curing gel layer. The fusion body of crystal grain glass is attached to the upper crystal glass plate. A method of producing the glass lampshade.

Abstract: A suspension device for an electric swing including a supporting bracket, a supporting beam, a suspended swing stem, a swing push rod, a gear motor, an electromagnetic clutch, a torque output plate, a direction switching pendulum weight, a swing direction monitor, a safety switch, and a microcomputer controller. The shaft of the gear motor is fixedly connected with the electromagnetic clutch. Two end surfaces of the electromagnetic clutch are fixedly provided with two rigid pins clamped at two sides of the torque output plate. The torque output plate pushes the direction switching pendulum weight. The direction switching pendulum weight pushes the swing push rod and the swing push rod pushes the suspended swing stem and the suspended body to swing. The gear motor and the electromagnetic clutch are electrically connected with the microcomputer controller. The device has a simple structure, reliable and silent operation, and is easy to carry.

Abstract: A negative pressure care bed, including at least a worktable, an armrest, a rocking bed having an upper bed surface and a lower bed surface, a mattress, a body including an upper part and a lower part, multiple excretion holes, a pair of trousers, a bed pan, a waste container having an inlet and an outlet, and a noise reduction oven. The upper part is connected to the lower part via a hinge. A first lifter is disposed on the upper part. A groove is disposed at the bottom of the negative pressure care bed and formed via the worktable and the armrest. The rocking bed is disposed on the groove via multiple bearing supports. The excretion holes are disposed on the mattress and on the lower bed surface of the rocking bed. The trousers are disposed on the excretion hole. The bed pan is disposed in the excretion hole and on the trousers.

Abstract: A method for producing a single-mode fiber for submarine cables including washing and flame polishing of a preform, fiber drawing, coating with a first coating layer and curing therein using an UV-curing device, coating with a second coating layer and curing therein using the UV-curing device, fiber selection with a 2% screening strain, and testing the properties of the fiber. The fiber has a high strength and long coiling length exceeding 100 km and the method is easy to practice with low production cost and parameters involved therein are highly controllable.

Abstract: An energy-saving lamp with a high-power double spiral energy-saving light tube. The double spiral energy-saving light tube includes two single spiral light tubes having complementary structure. One spiral light tube rotates into the other in the same direction, they geometrically fit into one another, and they complement one another. The two light tubes work independently. Reliability is improved. Short glass tubes can be used for producing the two single spiral light tubes, and the production process is simple and suitable for mass production. The luminous efficiency of the energy-saving lamp of the invention exceeds 80 lm/W. A single spiral light tube of between 14 and 22 mm in diameter corresponds to the power of the lamp of between 100 and 250 W.

Abstract: Provided is a ceramic ball, comprising a core portion and a sphere portion; wherein said core portion is made of clinkers and raw materials; said clinkers are made of kaolinite and feldspar, industrial waste ceramics or a combination thereof; said raw materials are made of kaolinite and feldspar; a weight ratio between the clinkers and the raw materials in said core portion is 1-2:2-3; and a weight ratio between said kaolinite and said feldspar is 5-7.5:1-2.5. A method for producing a ceramic ball is also provided. The invention features low energy consumption, good pressure resistant performance, shock resistance property and long lifetime.

Abstract: An epoxy-based antiskid adhesive having component A and component B, the component A having 1) between 20 and 35 parts of an epoxy resin; 2) between 0.5 and 3 parts of a diluting agent; 3) between 1 and 5 parts of silica; 4) between 20 and 60 parts of quartz sand; 5) between 1 and 6 parts of quartz powder; 6) between 1 and 10 parts of an active calcium; and 7) between 1 and 5 parts of triple superphosphate; and the component B having 1) between 20 and 40 parts of an organic compound-modified amine; 2) between 1 and 5 parts of an accelerator; 3) between 0 and 3 parts of a coupling agent; 4) between 5 and 10 parts of silica; 5) between 20 and 50 parts of quartz sand; 6) between 1 and 10 parts of quartz powder; and 7) between 1 and 10 parts of silica fume.

Abstract: A gas valve control device, including at least: a timing controller, and a valve, including at least a rotating button, a contact plate, an electromagnetic valve, a pressing spring, a valve cover, a valve pole, a fixing pin, a plug bar, and a valve body having a cavity. Advantages of the gas valve control device include: integration of a timing controller and a control valve; timing control can be implemented mechanically or electrically; compact structure and good appearance; easy operation; safe and reliable; and accurate timing.