82results about How to "Difficult to extract" patented technology

A method of producing a nickel base alloy includes casting the alloy within a casting mold and subsequently annealing and overaging the ingot at at least 1200° F. (649° C.) for at least 10 hours. The ingot is electroslag remeelted at a melt rate of at least 8 lbs/min (3.63 kg/mm.), and the ESR ingot is then transferred to a heating furnace within 4 hours of complete solidification and is subjected to a novel post-ESR heat treatment. A suitable VAR electrode is provided form the ESR ingot, and the electrode is vacuum arc remelted at a melt rate of 8 to 11 lbs/minute (3.63 to 5.00 kg/minute) to provide a VAR ingot. The method allows premium quality VAR ingots having diameters greater than 30 inches (762 mm) to be prepared from Alloy 718 and other nickel base superalloys subject to significant segregation on casting.

A device for transdermal administration of active substances, comprising a backing layer and an active substance-containing reservoir connected to the backing layer. The skin-facing contact surface of the device has a plurality of microprotrusions which are suitable for penetrating the skin and which are equipped with structures that make extracting the protrusions from the skin more difficult.

The present invention relates to pharmaceutical formulations for oral administration through a soft gelatin capsule, wherein the pharmaceutical dosage form has pseudoephedrine hydrochloride as the active pharmaceutical ingredient. The active pharmaceutical ingredient, pseudoephedrine hydrochloride as an active is embedded in a suitable matrix, wherein said matrix composition is characterized by reducing the extractability of the pseudoephedrine hydrochloride.

The present invention reduces temperature gradient in the direction of the radius of solidified ingots of silicon immediately after solidification, which has serious influences on the quality as a solar cell and improves the quality. Silicon raw materials are melted inside a bottomless crucible combined with an induction coil by electromagnetic induction heating. The silicon melt formed inside the bottomless crucible is allowed to descend and solidified ingots of silicon are manufactured continuously. Plasma heating by a transferred plasma arc torch is also used for melting the silicon raw materials. The plasma arc torch is moved for scanning along the inner surface of the bottomless crucible in the horizontal direction. A plasma electrode on the solidified ingot side to generate transferred plasma arc is allowed to contact the surface of the solidified ingot at positions where the temperature of the solidified ingot becomes 500 to 900° C.

A secure microprocessor is designed using quad-coded logic which is similar to dual-rail encoded asynchronous logic except that the ‘11’ state propagates an alarm. The alarm signal obliterates secure data in its path. Quad-coded logic provides resilience to power glitches and single-transistor or single-wire failures. The already low data dependency of the power consumption makes power analysis attacks difficult, and they are made even more difficult by inserting random delays in data and control paths, and by a set-random-carry instruction which enables software to make a non-deterministic choice between equivalent instruction sequences. These features are particularly easy to implement well in quad-coded logic.

The present invention discloses a multi-sensor merging based super-close distance autonomous navigation apparatus and method. The apparatus includes a sensor subsystem, an information merging subsystem, a sensor scanning structure, and an orientation guiding structure, wherein a visible light imaging sensor and an infrared imaging sensor are combined together, and data are acquired by combining a passive measurement mode composed of an optical imaging sensor and an active measurement mode composed of a laser distance measuring sensor. Autonomous navigation is divided into three stages, that is, a remote distance stage, implemented by adopting a navigation mode where a binocular visible light imaging sensor and a binocular infrared imaging sensor are combined, a close distance stage, implemented by adopting a navigation mode where a binocular visible light imaging sensor, a binocular infrared imaging sensor and a laser distance measuring sensor array are combined, and an ultra-close distance stage, implemented by adopting a navigation mode of a laser distance measuring sensor array. Through the present invention, the field of view and the exploration range are widened, the problem of shielding existing in passive measurement is effectively solved, the precision of data measurement is ensured, and the navigation efficiency and the safety and reliability of navigation are improved.

A process for the complete fractionation of cocoa beans with ‘zero waste’ into various value-added ingredients, a composition comprising cocoa polyphones/procyanidins and soluble dietary fiber, and a water dispersible and sustained release formulation of cocoa polyphones with cocoa soluble dietary fiber capable of forming a colloidal dispersion of bioactive cocoa polyphones in gastric fluid.

The invention relates to a helicopter detecting and identifying method based on conventional coherent radar. The helicopter detecting and identifying method mainly comprises the following steps of: firstly finding the central position of a target echo by using a detection and aggregation method, and leading echoes of a target and a distance unit to pass through a frequency domain processed and transformed by a FFT (Fast Fourier Transform Algorithm) ; then searching a peak position of a target spectrum, a clutter counting characteristic and a noise counting characteristic, building a helicopter detecting filter and a clutter filter, and leading a target frequency domain to pass through the two filters to detect the rotor Doppler information of the target; and finally distinguishing a filtering result so as to distinguish a helicopter target or a sea-surface target. The method provided by the invention has the advantages of simple engineering realization, good identification effect and the correct rate of more than 85% for the helicopters.

The invention relates to a laundry dryer. Air flow of the drying air in the laundry dryer can be varied. In particular, the air flow can be reduced as the drying process proceeds, such that the air has enough time to take up a large amount of water from the laundry and it remains possible to extract water therefrom efficiently. Further, the user can be provided with different programs having different air flows and process durations such that the duration, energy consump tion and noise generation can be chosen according to re quirements. Advantageously, the power of a heat pump (7) in the device can be adjusted depending on air flow.

The present invention relates to a composition comprising pharmaceutical active ingredients which are susceptible to, or have potential for, abuse. The invention provides an oral pharmaceutical composition comprising a first population of beads and a second population of beads. The first bead population comprises a pharmaceutically active ingredient susceptible to, or having the potential for, abuse. The second bead population comprises a gelling agent and a coating substantially surrounding the gelling agent, but containing no pharmaceutically active ingredient. The first bead population and the second bead population are physically separable, but visually indistinguishable to the naked eye. Upon ingress of water into the second population of beads, the gelling agent is caused to swell forming a viscous mass inhibiting or preventing the extraction of the active ingredient.

A novel magnetic imaging microscope test system with high spatial (1–10 nm) and temporal (˜1 ns) resolution of the magnetic field is disclosed, as well as the system application for characterization of read and write heads for magnetic recording. The test system includes a scanner assembly and a work piece holder for holding a work piece to be tested. The scanner assembly and the work piece holder are positionable relative to each other at very fine resolution during scanning. A probe arm is cantilevered from the scanner assembly to bring a probe head into close proximity to the work piece holder. The probe head is configured scan a work piece in contacting engagement therewith so that a magnetic device on the probe head magnetically interacts with a magnetic field generating or magnetic field sensing device on the work piece. A probe head for use in the test system and a related test method are also disclosed.

The invention discloses a method for identifying a microcrack direction in a plate based on a nonlinear frequency mixing technology of Lamb waves. The method includes, firstly, extracting a sum frequency signal and a difference frequency signal in a damage response signal by adopting a pulse inversion method; obtaining a directional mode pattern of a nonlinear scattering coefficient beta through the extracted sum frequency signal and difference frequency signal; and determining the maximum forward scattering point and the minimum backward scattering point of the Lamb wave, and taking the direction vertical to the connecting line of the maximum forward scattering point and the minimum backward scattering point of the Lamb wave as the direction of the micro-crack, thereby realizing the identification of the direction of the micro-crack. According to the invention, the Lamb wave excited by frequency mixing interacts with the nonlinear medium to generate a new frequency component; the sumfrequency and difference frequency effective frequency components in the damage response signal are effectively extracted through a pulse inversion method, the microcrack direction is recognized by researching the nonlinear scattering degree of Lamb waves in different directions of the microcrack, and the technical problems that the amplitude is too small, and the sum frequency and difference frequency signals with weak signals are not easy to extract and recognize are effectively solved.

A connector containing member on an electrical junction box is provided on an inner surface with a connector latching projection. A flexible piece being latched protrudes from a housing outer surface of a connector fitted in the connector containing member. A projection being latched that is provided on the piece being latched is locked on the connector latching projection. A cover attaching portion protrudes from a peripheral edge along one side of the connector containing member at the projecting side of the connector latching projection. A cover is secured to a cover attaching portion by screws after the connector is fitted in the connector containing member. The cover includes an interfering rib that protrudes outward from a connector receiving port, and a latching holder that is bent from a distal end of the interfering rib and is inserted into a clearance between the housing outer surface of the connector and the piece being latched.

The invention relates to the technical field of medicine and discloses a preparing method for ginsenoside Rh2. The preparing method comprises the steps of strain culture, raw material selecting, biological fermentation and conversion, filter pressing, sterilization and drying, and thus a product is obtained. Ginsenoside Rh2 extract prepared through the preparing method is high in treatment effect and purity, good in absorption and stable in quality; meanwhile, the preparing method is good in separation effect, high in content, simple in process, convenient to implement, low in cost and suitable for industrial production.

Composition to aid in the sequestration and/or disposal of unused human or animal pharmaceutical drug or medication. The composition comprises a disposal composition material that contains a gelling or massing agent and optionally other components, and can be in the form of pellets, beads, beadlets, granules, or the like. The disposal composition material can be incorporated into a sachet or other disposal container or its cap to prevent the use of the medicament or the removal/extraction of active agent(s) from a pharmaceutical dosage form intended for disposal, to an appreciable extent and/or rate. With in the disposal agent, or fill material there may also be additional ingredients to promote mixing, sequestration or destruction of the active agent. The disposal composition is contained in a sachet and dispensed with a medicament for use when the patient has finished with the medication and there is material left over for disposal. In addition, the sachet could be made available for use with non-prescription drugs and other materials.

The invention relates to the technical field of extraction of natural products in plants, in particular to a method for extracting flavonoid plant preservative from bamboos, products prepared through the same and application of flavonoid plant preservative. The method mainly includes the steps that extraction is conducted in a quaternary-system mixed solvent of ethanol, acetic acid, ethyl acetate and water; separation and purification are conducted by adsorbing resin through big holes. By means of the method, the extraction rate of natural flavonoid products in the bamboos is increased remarkably, and the obtained natural flavonoid products are high in antioxidant activity and good in bacteriostasis and corrosion resistance.