43results about How to "Yield" patented technology

The invention describes a process for preparing acetone starting from acetyl-coenzyme A comprising process steps A. enzymatic conversion of acetyl-CoA into acetoacetyl-CoA B. enzymatic conversion of acetoacetyl-CoA into acetoacetate and CoA and C. decarboxylation of acetoacetate to acetone and CO₂, which is characterized in that the coenzyme A is not transferred in process step B to an acceptor molecule. In addition, process step B is surprisingly catalysed by enzymes of the classes of acyl-CoA thioesterase, acyl-CoA synthetase or acyl-CoA thiokinase.

A completely novel metabolic pathway is concerned, because the enzymatic hydrolysis of acetoacetyl-CoA without simultaneous transfer of CoA to a receptor molecule has never previously been described for any microbial enzyme.

The quality of printed matter, which is one of several copies of the same printed matter produced by a printing machine, is evaluated. An amount of copies of the printed matter is selected from the total production of this printed matter. The selected amount of these copies are evaluated with regard to at least one error type which belongs to an amount of different error types or with regard to at least one feature of the error. Within the selected amount of copies, an error of a defined error type or of a defined feature, which is detected on at least one of the copies, is evaluated in relation to at least one error of another type or feature detected on the same copy, or another copy of the selected amount. The printed matter is classified as having good or bad quality based on that evaluation. A common reading, producing image data, is obtained by an image sensor from the selected copies. All of the errors to be evaluated in relation to each other are detected from image data gathered during the same common recording.

The invention provides swing wheels, a clock movement provided with the swing wheels and a clock provided with the clock movement. The swing wheels are capable of easily adjusting the error rate to reduce errors of a release catch so that the characteristic of stable error rate is obtained. The swing wheels are characterized in that the swing wheels are provided with a swing shaft (30) and a balance spring. A balance wheel (20) is outwardly embedded at the swing shaft (30). The inner end portion of the balance spring is connected with the swing shaft (30).The wing wheels are formed in such a manner that when the inner peripheral surface (40a) of the balance spring (40) is lengthened along an axis of the swing shaft (30), the inner peripheral surface (40a) and a central axis (O) of the swing shaft (30) are intersected.

A module board includes insulating layers, ground electrodes, signal electrodes, and interlayer vias. Electronic components are mounted on a front surface of the module board, and a sealing resin layer covers the electronic components. A half-cut portion is provided in the module board at an outer peripheral edge thereof and recessed to an intermediate position in a thickness direction of the module board. A shield layer cover the sealing resin layer. The shield layer includes a frame portion that extends into the half-cut portion. The frame portion is electrically connected to ground interlayer vias that are exposed at an end surface and a bottom surface of the half-cut portion.

A method for producing a composite filter tube and filter element made of a multilayer metal mesh and metal powders, including: knitting to obtain metal meshes of different mesh numbers, obtaining a layered structure by means of a lamination method, then putting the layered structure in a vacuum furnace for sintering processing, sintering a metal composite layer to obtain a composite filter sheet and tube made of a multilayer metal mesh and metal powders with a multilayer metal mesh as a structure support layer and a metal powder sinter structure as a filter layer, then rolling the composite filter sheet and tube into a tubular filter element by using a shaping machine, and welding to obtain a composite filter tube and filter element product made of a multilayer metal mesh and metal powders.

A yarn length measuring and feeding device (F) according to the present invention comprises a fixed yarn storage body (K), a winding element (2) and a brake device (S). The yarn storage body (K) defines a substantially cylindrical storage surface (6) for weft yarn winding, said winding element (2) being rotatable relative to the storage body (K) along the axis (X) of the storage body (K) Ground drive, said braking device (S) is used to measure the length of yarn. The brake device (S) is provided with at least one brake pin (3). At least one extension (V) is provided on the yarn storage body (K), which protrudes from the front end (5) of the yarn storage body (K) in the unwinding direction (W) and is relatively Axis (X) is asymmetrical. The extension (V) forms an at least linear winding support (A) which continues the yarn storage surface (6) of the yarn storage body in the unwinding direction (W). Furthermore, at least approximately diametrically opposite to the winding support (A) there is provided a counter surface (16) which tapers in the unwinding direction (W) and protrudes beyond the front end (5 ).

A process for manufacturing single-wall and multiwall carbon nanotubes, comprising the stage of ablation by pulsed electronic beams of a graphite target that contains metallic catalysts.

The present invention relates to a method of producing a mixture of 5_α-pregnane derivatives represented by the formula (II) and the formula (III), which is characterized by reacting a pregnane derivative represented by the formula (I) with a metal selected from alkali metals and alkaline earth metals in the presence of a proton donor and an amine and/or ammonia. According to the present invention, a method capable of producing 5_α-pregnane derivatives useful as synthetic intermediates for squalamine, in a high yield from easily available raw materials, can be provided:

wherein R¹ is a hydroxyl-protecting group, and R², R¹¹ and R¹² are each independently a hydrogen atom or a hydroxyl-protecting group.

The invention belongs to the technical field of bridge cover plate production, and particularly discloses a bridge cover plate flanging device and a bridge cover plate machining method. The bridge cover plate flanging device comprises a workbench, stand bars and a motor; a first bearing and a second bearing are symmetrically embedded in the left side and the right side of a workbench body, third bearings are uniformly and longitudinally embedded in the right side of the workbench body, and fourth bearings are uniformly and longitudinally embedded in the left side of the workbench body; the outer wall of the first rotary shaft and the outer wall of the second rotary shaft are sleeved with rotary rollers; a right-angle supporting plate is welded to the right side of the top of the workbench;and a spiral baffle is welded to the left end of the right-angle supporting plate. A machining method of the bridge cover plate flanging device comprises the specific following steps that S1, a coverplate is put between the two rotary rollers to be clamped, and S2, the device is started so that the cover plate can move backwards at the constant speed, the cover plate is limited by the spiral baffle, and accordingly, flanging is conducted on the cover plate. Through the scheme, the machining steps are simplified, and the machining efficiency and the product percent of pass are improved.

The invention discloses a structure for mounting a central liner of a steering wheel. The structure is provided with two steps; and one is an end part lug boss (5) positioned at one end of a cylindrical hole of a bearing sleeve (2) of the steering wheel, and the other one is a middle lug boss (7) axially positioned on an outer circle at the smallest aperture part of a taper hole (3). With the technical proposal, the structure solves the problem of deformation when an inner taper of the bearing liner of the steering wheel is subjected to die casting, is simple and convenient to implement and improves production efficiency.

The invention concerns the field of protein production and cell culture technology. It describes a method of producing a heterologous protein of interest in a cell comprising a. Increasing the expression or activity of a secretion enhancing gene, and b. Increasing the expression or activity of an anti-apoptotic gene, and c. Effecting the expression of said protein of interest, whereby the secretion enhancing gene is a gene encoding a protein whose expression or activity is induced during one of the following cellular processes: plasma-cell differentiation, unfolded protein response (UPR), endoplasmic reticulum overload response (EOR).

The present invention provides a new method for synthesizing maxacalcitol and an intermediate thereof. According to the method, the maxacalcitol is creatively synthesized through the steps of: taking vitamin D2 as an initial raw material, obtaining a compound represented by formula II, oxidizing, chirally reducing, grafting with a side chain, introducing a hydroxyl group on the C-1 position, and photochemically overturning.

High concentration of free cells of heterofermentative lactic acid bacteria (LAB) in a resting or slowly growing state are used to convert fructose into mannitol. Efficient volumetric mannitol productivities and mannitol yields from fructose are achieved in a process applying cell-recycle, continuous stirred tank reactor and/or circulation techniques with native LAB cells or with LAB cells with inactivated fructokinase gene(s). Mannitol is recovered in high yield and purity with the aid of evaporation and cooling crystallization.

The invention consists of a base plate, a case, an Electro Luminescent and a shell. The case consists of a case surface and a connecting part extending from surface of case. Through the connecting part a holding space is formed between the case and the base plate. The Electro Luminescent is set in the surface of the base plate and is held in the holding space. The shell is united with the case through a binding component. The binding component is set in the area under the surface of case and corresponding to the connecting part.