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The present invention relates to novel mutant thioesterase enzymes and naturally-occurring equivalents thereof, compositions made from such enzymes and uses of thioesterase enzymes. In particular, the present invention provides mutant thioesterase enzymes that have altered properties, for example, altered substrate specificity, altered activity, altered selectivity, and/or altered proportional yields in the product mixtures. The present invention also provides polynucleotides encoding such mutant thioesterase enzymes, and vectors and host cells comprising such polynucleotides. The invention further provides for novel uses of thioesterases in the production of various fatty acid derivatives, which are useful as, or as components of, industrial chemicals and fuels.

A surgical system that applies electrical energy to obtain predetermined surgical effects while improving the control of the application of the energy that is supplied by electrosurgical generators. In one embodiment, a surgical assembly interfaces with and receives power from an electrosurgical generator for executing a first electrosurgical procedure. This surgical assembly may employ a shunt circuit between its power and return lines for providing in effect a voltage limitation and/or to allow a constant power electrosurgical generator to execute an at least substantially constant voltage electrosurgical technique. The electrosurgical assembly may also include a return coupler for directing energy from the patient back to the electrosurgical generator, which in turn may include a dielectric material which interfaces with the patient and which at least initially conveys the return energy via one or more electric fields versus conduction.

A coaxial cable connector includes a connector body having a first end and a second end, a coupling nut freely rotatable and disposed in relation to the first end of the connector body and a post having a first end and a second end, the post further including a open-ended port retaining portion. The coupling nut includes an internal threaded portion and is disposed in overlaying relation relative to the port retaining portion, which is configured for engaging an external port. The port retaining portion defines a locking collet that prevents loosening of the engaged port, while still guaranteeing electrical continuity without requiring excessive tightening of the connector.

A method of producing a surface-mount inductor by encapsulating a coil with an encapsulation material containing a resin and a filler using a mold die assembly is provided. In the method, a tablet and a coil are used. The tablet is prepared by preforming the encapsulation material into a shape having a flat plate-shaped portion and a pillar-shaped convex portion on a peripheral thereof. The coil is a wound conductive wire having a cross-section of rectangular-shape. The coil is placed on the tablet to allow both ends of the coil to extend along an outer side surface of the pillar-shaped convex portion of the tablet. The coil and the encapsulation material are integrated together while clamping the both ends of the coil between an inner wall surface of the mold die assembly and the outer side surface of the pillar-shaped convex portion of the tablet, to form a molded body. External electrodes are formed on a surface of or around an outer periphery of the molded body in such a manner that the external electrodes are electrically connected to the both ends of the coil at least a portion of which is exposed to the surface of the molded body.

The invention discloses a preparation method of a hydrocracking catalyst. The method comprises the steps of preparing an acidic mixed solution A containing hydrogenation reactive metals and silicon, preparing a sodium metaaluminate alkaline solution B, and then adding the acidic mixed solution A, the alkaline solution B and CO2 to a reaction tank filled with clear water in parallel to prepare gel; and then adding turbid liquid of a Y type molecular sieve, mixing the substances uniformly, filtering, drying and forming the mixture, and then washing, drying and roasting the product, thus preparing the hydrocracking catalyst. The method has the beneficial effects that a clean preparation method is adopted, so not only can the catalyst be easily formed and the strength of the catalyst be improved, but also the pore volume and specific surface area of the catalyst can be increased and the dispersity of metals in the catalyst can be improved, thus the catalyst has higher hydrocracking activity, middle oil selectivity and stability; and the catalyst prepared by the method can be used for a single-section hydrocracking process of a non-refining section or a one-section serial hydrocracking process of a refining section.

The invention provides a vehicle supporting bridge pipe and end face flange welding machine and a welding method thereof. The welding machine comprises a welding seat, a supporting flange plate is fixed at the upper end of the welding seat, a second three-claw chuck is fixed on the supporting flat plate, a circumferential rotating device coaxial with the second three-claw chuck is arranged on thesupporting flat plate, two welding guns are fixed on two sides of the center of the circumferential rotating device, a vertical beam is fixed on the supporting flat plate, a lifting mechanism is fixedon the vertical beam and fixed to a first three-claw chuck through elastic connection, a second three-claw chuck and the first three-claw chuck are fixed to a flange and a supporting bridge pipe respectively, and the welding guns weld the flange and the bridge pipe when rotating. The welding guns with two circumferential sides in symmetry are adopted to weld a welding position at the same time, welding deformation of the supporting pipe and the flange caused by welding stress is reduced, and coaxiality between the supporting pipe and the flange is improved.

A package system which combines an article and a container in an integrated package with the article secured in nested relationship within a recess of the container. The recess has sufficient depth such that portions of the side walls of the container extend outwardly effectively beyond an exposed surface of the article so as to protect the article against damage. Alternatively, the package system includes a pair of spaced columns which are integrally formed with the side wall of the container and which extend outwardly from the side wall. A recess is formed between the column members which is configured to receive an article in nested relationship within the recess. Methods for securing the article in nested relationship within the recess of the container are also disclosed.

An apparatus and method for the photocatalytic conversion of contaminants in a fluid stream. Fluid is directed through a semitransparent packed bed or an open cell, three dimensionally reticulated, fluid permeable, semiconductor unit. Within the unit, a semiconductor, when exposed to a photoactivating light source, converts the contaminants through a photocatalytic reaction. Both the substrate and the semiconductor photocatalyst are semitransparent to the activating light to allow penetration of light into the unit, thereby distributing the light, increasing the active specific surface area, and improving the net conversion performance of the unit.

Implantable connector arrangements are provided for allowing a plurality of electrode leads to be connected to an implantable device through a single port in the device. Also provided are leads that include the same, implantable pulse generators that include the leads, as well as systems and kits having components thereof, and methods of making and using the subject devices.

The present application provides an electrode assembly including an atomizer outer electrode, an atomizer inner electrode, a battery rod outer electrode and a battery rod inner electrode assembly, all of which being configured to form an electrically conductive loop, wherein, the atomizer outer electrode provided on the atomizer is of a cylindrical shape; the battery rod outer electrode of a cylindrical shape arranged on the battery rod is configured to be inserted into or sleeved outside the atomizer outer electrode, and then is coupled to the atomizer outer electrode by rotating either the battery rod outer electrode or the atomizer outer electrode, so as to form an electrical connection in a surface contact manner; and the atomizer inner electrode provided on the atomizer is in contact with and electrically connected to the battery rod inner electrode assembly provided on the battery rod.

The invention relates to a novel ceramic coating polyolefin composite film which comprises a polyolefin substrate with micro pores, wherein one side or both sides of the polyolefin substrate is/are compounded with ceramic coating(s); the ceramic coating comprises porous ceramic particles, an inorganic filler and an adhesive. The invention also relates to a method for preparing the novel ceramic coating polyolefin composite film. The method comprises the following steps: a, dissolving the adhesive in a solvent, thereby preparing an adhesive solution; b, adding the porous ceramic particles and the functional inorganic filler into the adhesion solution prepared in the step a, and performing dispersing treatment, thereby preparing coating slurry; and c, coating one or two surfaces of the polyolefin substrate with the coating slurry prepared in the step b, and drying and curing to prepare the product. The novel functional composite film has high liquid absorption and retention performance, has the functions of reducing harmful gases inside a battery, improving the performance of the battery and prolonging the service life of the battery, and has the safety characteristics of low closed pore temperature, high melting temperature and low hot-shrinkage rate.

An earbud charging storage case for storing and charging a pair of earbuds, includes an earbud holder, and a magnetic component bracket looped around the earbud holder. Each earbud has a magnetic element. The earbud holder has a base portion. Two sides of a bottom surface of the base portion protrude downward to form two accommodating portions. Two sides of a top surface of the base portion are recessed downward to form two lower receiving grooves. The two accommodating portions have two accommodating grooves. The two lower receiving grooves and the two accommodating grooves together define two storing grooves. The pair of the earbuds are accommodated in the two storing grooves. Several portions of a bottom surface of the magnetic component bracket are recessed upward to form a plurality of buckling grooves. Each of the plurality of the buckling grooves is equipped with a first magnetic component.

The invention provides apparatus and methods for mapping conduction pathways and creating lesions in the heart wall for the treatment of atrial fibrillation. The apparatus may include at least one epicardial ablation probe having a plurality of electrodes for creating a lesion. The apparatus and method facilitate the formation of a lesion which electrically isolates the pulmonary veins from the surrounding myocardium.

A control system alters one or more characteristics of an ablating element to ablate tissue. In one aspect, the control system delivers energy nearer to the surface of the tissue by changing the frequency or power. In another aspect, the ablating element delivers focused ultrasound which is focused in at least one dimension. The ablating device may also have a number of ablating elements with different characteristics such as focal length.

The invention relates to a process for preparing 4,4'-dichlorodiphenylsulfone, in particular to a process for preparing 4,4'-dichlorodiphenylsulfone employing a sulfoxide oxidation method. The process comprises the following steps: carrying out friedel-crafts reaction with chlorobenzene and thionyl chloride under the action of a catalyst to obtain the 4,4'-dichlorodiphenylsulfone; dissolving the obtained 4,4'-dichlorodiphenylsulfone with a solvent; adding hydrogen peroxide and carrying out oxidation reaction to obtain a 4,4'-dichlorodiphenylsulfone crude product; carrying out secondary oxidation refining on the obtained 4,4'-dichlorodiphenylsulfone crude product; and finally preparing high-purity 4,4'-dichlorodiphenylsulfone. The purity of the 4,4'-dichlorodiphenylsulfone purified by the refining process is greater than 99.5%; the refining yield is greater than 98.5%; and the process completely meets the synthesis requirements of high-performance polymers.

A respiratory mask (10) that comprises a mask body (12) and a harness (21) that includes a carriage (22) and a strap (24). The mask body (12) lacks a rigid insert, is non-elastomeric, and is adapted for fitting over a person's nose and mouth. The mask body (12) has a nose portion (14), a chin portion (16), first and second cheek portions (18 and 20), and an axis (32) that extends from the nose portion (14) to the chin portion (16). The mask body (12) is constructed to deform such that the first and second cheek portions (18 and 20) move towards each other about the axis (32). The carriage (22) is joined to the mask body (12), and the strap (24) is joined to the carriage (22) for supporting the mask body (12) over a person's nose and mouth. When tension is applied to the strap (24) and an opposing force acts at the nose and chin portions of the mask body, the first and second cheek portions (18, 20) exhibit movement about the axis (32) towards each other. The respirator mask is beneficial in that it is lightweight, easy to manufacture, and maintains a good fit to a person's face.

The invention discloses a lithium-sulfur battery adopting a multi-layer composite separator. The multi-layer composite separator is characterized in that one side surface of a substrate separator is coated with a polymer layer A, the other side surface of the substrate separator is coated with an inorganic solid material layer and a polymer layer B, and the inorganic solid material layer is located between the substrate separator and the polymer layer B. The mechanical strength of the separator can be improved by the inorganic solid material layer, when a ceramic material with a lithium ion conduction function is used, the ionic conductivity of the separator can be improved effectively, and a polarization effect in charge-discharge processes is reduced. An electrolyte of the lithium-sulfurbattery contains an additive, therefore, interface state of a cathode, an anode and the separator is improved, charge-discharge current on the lithium anode surface is more uniform, activity of the lithium anode in the lithium anode can be reduced effectively, possibility of formation of lithium dendrites is reduced greatly, and use stability of the lithium anode is improved.

The invention discloses a biostimulation method for remediation of oil-polluted soil. In the method, on the premise of not adding an oil pollutant biodegrading bacterial agent, a soil conditioner is added to improve the soil environment, reduce soil stickiness, increase the soil permeability, adjust the water-retaining capacity of the soil, adjust inorganic and organic nutrients necessary for local microbe growth, maintain the pH value of the soil close to neutrality, promote oil pollutant degrading microbes in the soil to grow and propagate, and improve the oil pollutant degrading efficiency of the local microbes; by planting plants, the microenvironment of the soil near root systems of the plants is improved, the plants secrete organics with low molecular weight such as amino acid to the root systems so as to stimulate the massive propagation of the local microbes and indirectly promote oil pollutant degradation by the microbes of the root systems; and the biostimulation method has the advantages of accelerating the remediation of the oil-polluted soil and restoring the original state of the soil.