41results about How to "Expensive to use" patented technology

The invention relates to an instrument for surgery, in particular minimally invasive surgery. The instrument includes means for feeding back a force which is exerted on the working element of the instrument to the operating element. These means include at least a first force sensor for measuring the force which is exerted on the working element, a control unit and a first actuator. On the basis of a signal which originates from the first force sensor, the control unit controls at least the first actuator in order to control the operating element. Furthermore, the means preferably include a first position sensor for measuring a position of the working element with respect to the frame. The control unit advantageously determines an impedance which the working element is subject to as a result of the presence of a tissue or the like, on the basis of which impedance the control unit controls at least the first actuator.

A local area augmentation navigation system for determining the location of an object using differential GPS. The system does not require any significant power or communication infrastructure. The system includes at least three reference stations, a master station and a LAAS receiver. The at least three reference stations are located in close proximity to each other and at known locations. Each of the reference stations receive a GPS signal from a GPS constellation and collect and output via a wireless transceiver the pseudo-range data from the GPS signal. The master station is positioned in close proximity to the reference stations and receives the pseudo-range data from the reference stations. The master station forms a correction message from the pseudo-range data and the known locations of the reference stations. The master station broadcasts the correction message within a specified area. The LAAS receiver is positioned within the specified area and receives the correction message broadcast by the master station as well as a GPS signal from the GPS constellation. The LAAS receiver calculates the location of the LAAS receiver with the correction message and the GPS signal.

The invention relates to a method of preparing creatine phosphate sodium by utilizing a gene engineering technology. The method comprises the steps: respectively constructing creatine kinase and acetate kinase expression strains, removing the limit of creatine kinase-containing animal source, specially purifying the creatine kinase and acetate kinase by utilizing an affinity purification technology, co-immobilizing the creatine kinase and acetate kinase onto vector particles to form co-immobilized enzyme, continuously regenerating ATP from the acetate kinase for sustained reaction while the creatine kinase catalyzes and generates creatine phosphate sodium, thereby finally providing low-cost, green and pollution-free creatine phosphate sodium.

A composition for the prevention or inhibition of free radical-induced effect on the skin and / or hair comprises at least three antioxidant agents selected from the group consisting of ginkgo extract, emblica extract, dimethylmethoxy chromanol, pine bark extract, and rosemary extract.

FIG. 4 is an overall view of the representation of the peeping tom (916) problem and its deterrence showing the peeping tom, factory made deterrent design for horizontal window blinds of the present invention (100) installed, and when the control cord hole free window blind slats (156) are fully tilt closed and fully lowered close, will prevent the peeping tom (916) from gazing through the control cord hole free window blind slats (156), furthermore, the left edge cover strip (140), and the right edge cover strip (144) prevent the peeping tom (916) from gazing around the window casing right side (900) and window casing left side (904) which are shown in relation to the window casing top (908) and the window casing bottom (912), furthermore, the clip (104) with a front loop (108) and a rear loop (116) and a window blind tilt control cord pair knot (196), plus snap tap holes (106) are shown on the clip (104), furthermore, the window blind raising open and lowering close control cord pair (160) and the window blind tilt control cord pair (164) are shown threaded through and attached to the clip loops in relation to the window blind head rail (168) and the window blind bottom board (172) and the raise open and lower close control cord pair user cord loops (180).

The invention belongs to the technical field of medicines, and relates to a method for preparing 3,7-bis(trimethylsilyl oxyl)-6-alkene-5 beta-cholane-24-methyl gallate. Preferentially, 3,7-bis(trimethylsilyl oxyl)-6-alkene-5 beta-cholane-24-methyl gallate is 3 alpha,7-bis(trimethylsilyl oxyl)-6-alkene-5 beta-cholane-24-methyl gallate. According to the method, 3,7-bis(trimethylsilyl oxyl)-6-alkene-5 beta-cholane-24-methyl gallate, especially 3 alpha,7-bis(trimethylsilyl oxyl)-6-alkene-5 beta-cholane-24-methyl gallate, prepared through the method can be used for preparing obeticholic acid.

The invention discloses a field mobile positioning device based on backward diode (BD) communication. The device comprises a BD receiving antenna, a signal amplifier, a BD processing board, a power amplifier, a BD transmitting antenna and a data transmission unit, wherein the BD receiving antenna is used for receiving a downlink signal broadcast by a BD satellite; the signal amplifier is connected with the BD receiving antenna and used for denoising and amplifying the signal of the BD satellite, which is received by the BD receiving antenna, and transmitting the denoised and amplified signal to the BD processing board; the BD processing board is used for performing analog-to-digital conversion and processing operation on the signal transmitted by the signal amplifier; the power amplifier is connected with the BD processing board and used for amplifying the signal which is processed by the BD processing board and is to be transmitted; the BD transmitting antenna is connected with the power amplifier and used for transmitting the signal amplified by the power amplifier to the BD satellite; and the data transmission unit is connected with the BD processing board and used for performing interactive data transmission with peripheral equipment. The positioning device is small in volume, light in weight, low in cost and wide in application range.

The present invention relates to a process for preparing, 4-bis(ethoxymethyl)cyclohexane, which comprises reacting 1,4-bis(hydroxymethyl)cyclohexane with ethyl chloride in the presence of an inorganic base, a solvent and a phase transfer catalyst to yield a reaction mixture containing 1,4-bis(ethoxymethyl)cyclohexane, where the inorganic base is selected from alkali metal hydroxides and earth alkaline metal hydroxides and where the solvent is selected from water or a mixture of water with at least one organic solvent.

The invention relates to a method for calculating the understeering ratio of automobiles provided with electric power steering (EPS) including an electric assistance motor (9) driven by an onboard electronic computer (11), a sensor (12, 14) providing a first piece of information on a real angular position of the steering wheel (3), a wheel anti-lock braking system (ABS) providing a second piece of information on the speed of the wheels (15) of the vehicle, characterised in that the onboard computer (11) of the EPS processes the second piece of information for estimating a theoretical angular position of the steering wheel (3), which is further compared to the real angular position of the steering wheel (3) in order to derive the understeering ratio (τ) of the vehicle.

The present invention provides soluble protein solutions, free of suspended particles in high yield. More particularly, the current invention provides a method for removing suspended particles from soluble protein solutions by filtering the soluble protein solution through highly purified diatomaceous earth.