Abstract: A method and system for optically inspecting manufactured rounds of ammunition or cylindrical components of the rounds to obtain rounds which exhibit superior accuracy when fired are provided. The method includes providing a nominal numerical value and an acceptable range of numerical values for a size or a geometric characteristic of an acceptable manufactured round of ammunition or a cylindrical component of the round for a predetermined caliber of ammunition. Also provided is a high-performance range of numerical values for the corresponding size or geometric characteristic of a high-performance manufactured round of ammunition or a cylindrical component of the high-performance round for the predetermined caliber of ammunition.

Abstract: In a defective-workpiece discharging device, a defective workpiece is discharged to a discharge path from a conveyance path that conveys a plurality of workpieces related to absorbent articles at a predetermined conveyance pitch. The conveyance path has a first path and a second path downstream of the first path. A sorting mechanism between the first and second paths sorts workpieces into either the second path or the discharge path. A defect detection sensor detects a defect and outputs a defect detection signal. A passage detection sensor detects passage of the workpieces at a predetermined position on the first path and outputs a passage detection signal. A controller controls the sorting mechanism based on the defect and passage detection signals. An end of the first path on the sorting mechanism side and the predetermined position are separated by a distance greater than or equal to the conveyance pitch.

Abstract: A method of sorting mined material, such as mined ore, is disclosed. The method comprises exposing particles of mined material to radio frequency electromagnetic radiation and heating particles depending on the minerals present in the particles and then thermally analysing particles exposed to radio frequency electromagnetic radiation to detect temperature differences between particles which indicate differences in the minerals in the particles. The method also comprises sorting the particles on the basis of the results of the thermal analysis.

Abstract: The present invention relates to a medical treatment arrangement having at least three device parts, with the first device part being a device part which is not made for the treatment of a patient, with the second device part being made in conjunction with the third device part such that a treatment of a patient can be made with them, with the second device part being made movable relative to the first device part and relative to the third device part, and with provision furthermore being made that the first device part and the second device part and/or the second device part and the third device part being made such that energy and/or data can be unidirectionally or bidirectionally exchanged between them.

Abstract: A water filtration system utilizes a housing configured to utilize various types of filter media and having a press-sealed closing system. The closing system includes a head portion defining a head opening, a lock member, and a lid member. The lock member releasably engages the head portion such that an abutment section of the lock member projects into the head opening. The lid member is received by the head portion to cover the head opening, and has an outward-facing press section configured to abut an inward facing portion of the abutment section of the lock member when the lid member is covering the head opening. Pressure generated within the housing during water filtration presses the lid member in an outward direction and causes the lid member press section to press against the abutment section of the lock member to substantially prevent disengagement of the lock member from the head portion.

Abstract: The invention relates to a method for providing an aseptic chromatography column, said method comprising the steps of: pre-sterilize an empty chromatography column; pre-sterilize a chromatography medium; introducing the pre-sterilized chromatography medium into the pre-sterilized chromatography column using aseptic equipment, thereby providing an aseptic chromatography column comprising chromatography medium.

Abstract: A solid-liquid separation device includes a plurality of fixed members and movable members that are movably disposed between the adjacent fixed members, and a screw extending through the fixed members and the movable members in a state where the screw is not in contact with the fixed members and the movable members. The screw is rotationally driven about a center axis line thereof. A filtrate separated from an object is discharged to the outside of the solid-liquid separation portion through filtrate discharge gaps, and the object that has a reduced liquid content ratio is discharged from the outlet to the outside. In order to increase significantly a dewatering ratio, the movable members are formed to move while penetrating closer to the center axis line of the screw than an outer circumferential edge of the blade of the screw, without coming into contact with the screw.

Abstract: A method of forming a bendable slotted liner with multiple circumferentially overlapping non-axial keystone slots comprising: transversely profiling a rod to form a profiled rod, having bending members outwardly profiled wider than intermediate and inward widths, interspersed with bases profiled to bondably mate with axially adjacent bases on a neighboring winding; forming the profiled rod into alternating port and starboard bending members and base pairs, by one of, bonding transverse spacers to the rod, transversely corrugating the rod, and forming the rod with one of transverse outdents and indents; winding the profiled rod to the outer diameter; and bonding axially paired bases together; wherein configuring the non-axial slot circumferential length greater than the circumferential base length on adjacent rod windings, forming non-axial keystone slots between bending members providing axial strain relief, with outer slot widths within a prescribed slot range and axial strain relief capacity greater than 0.

Abstract: A filter appliance may include a ring filter element arranged upright in a filter having an upper end disc and a lower end disc. A component may be arranged on the lower end disc and may include at least one of a water collection pot, a projecting nipple-shaped pin and at least one key profile. A function element may be configured to be inserted in a filter housing pot of the filter appliance, the function element including a channel configured to receive the component. A lock profile may be provided on the function element, wherein the lock profile corresponds to the at least one key profile of the lower disk. The filter appliance is may be operational provided the pin engages the channel and the key profile engages in the lock profile.

Abstract: The invention relates to a filter element (20), comprising individual components (2, 4, 8), such as a filter medium (8) as one component and further filter element components (2, 4), of which at least one component (4) is made of a material that is at least partially transparent to laser light and at least one further component (2), in the manner of a barrier layer, is made of a material that is at least partially opaque to laser light in order to perform a transmission welding method by means of laser light for the purpose of connecting associable filter elements to each other, wherein said method is characterized in that at least some of the components of the filter element that are exposed to the laser light during the transmission welding method are at least partially electrically conductive.

Abstract: There is disclosed a device for purifying oily wastewater, including a vertical tank of an atmospheric pressure, inside which a central coagulation reaction tube, a reverse cone-shaped cyclone flocculation stage, a suspended sludge filtering zone and a purified water commutation stage of inclined plates are included from bottom to top sequentially, oily wastewater is sequentially subjected to a coagulation reaction, suspended sludge filtering and a purified water commutation process and then discharged, a sludge collecting groove collects and guides the suspended sludge to a sludge concentrating zone for further sedimentation and concentration processes and then discharges it to external to the tank, in this way, the purification reaction, flocculation and fine filtration of wastewater and the sludge concentration process are integrated within the same wastewater purifying device. Thus, the device is equivalent to the existing wastewater pretreatment system plus a fine filtration system.

Abstract: A filtration vessel is provided with improved sealing surfaces and alignment methods. The sealing surface is provided by a perforated sleeve within the filtration vessel. An alignment mechanism is provided which allows for improved servicing of the filtration vessel.

Abstract: The present invention provides formulations and methods for isolating food-borne pathogens from a great variety of food matrices. Methods for isolating microorganisms from clinical and environmental specimens are also disclosed. The invention also concerns methods for rapid and efficient isolation of sufficiently pure DNA from small amounts of various pathogenic microorganisms, which then can be used, according to the methods of the instant invention, for selective identification of a live pathogenic microorganism present in a sample from which the microorganism was isolated. The methods of the instant invention are also useful for identification of new pathogenic microorganisms, diagnostics of food-borne illnesses, treatment of food-borne diseases and quality control of food items offered for sale to consumers.

Abstract: A method of manufacturing a honeycomb structure comprises a step of forming a molded article by molding a raw material containing a ceramic powder and a pore-forming agent; and a step of manufacturing a honeycomb structure by sintering the molded article, wherein the pore-forming agent is powder formed of a material that disappears at a sintering temperature or less where the molded article is sintered, the powder is obtained by mixing a small particle size powder and a large particle size powder, a median particle size of which a ratio of a cumulative mass with respect to a total mass of the small particle size powder is 50% is 5 to 20 ?m, a median particle size of which a ratio of a cumulative mass with respect to a total mass of the large particle size powder is 50% is 30 ?m or more, and a ninety-percentage particle size of which a ratio of a cumulative mass with respect to a total mass of the large particle size powder is 90% is 80 ?m or less.

Abstract: A pleated filter media comprises a plurality of pleats comprised of pleat segments extending in an axial direction between first and second axial ends and extending in a transverse direction that is perpendicular to the axial direction between first and second sets of pleat tips at least partially defined by first and second sets of bend lines. Axial flow channels are defined between the pleat segments in the lateral direction and the plurality of pleats has a width in the transverse direction that varies along the axial direction.

Abstract: A filter includes a filter element (1) having a filter medium (106) pleated in a zigzag manner, with a raw side (105) and a clean side (104). Filter medium sections (120) extend on either side of the raw-side pleat tips (102a) to adjoining raw-side pleat bases (103a) include a first bend (552) toward the raw side (105), and behind that a second bend (554) toward the clean side (104). A plurality of elongated depressions (656) are formed on the raw side (105), which extend between pleat tips (102a) and pleat bases (103a) approximately perpendicular to pleat edges (F) and implement corresponding elevations (658) on the clean side (104) such that, in a raw-side pleat intermediate space (148a), in each case, two depressions (656) on the two medium sections (120) delimiting the pleat intermediate space (148a) are located directly opposite of each other and each form a flow channel (660).

Abstract: A method of making a water vapor transport membrane is described. The method can include providing two sheets, each sheet comprising a support layer with an ionomer layer thereon; applying a solvent to at least one sheet; and contacting the ionomer layers of the two sheets to form a composite membrane comprising a composite ionomer layer between the two support layers. A composite membrane is also described.

Abstract: A nanocomposite membrane includes a macroporous polymer membrane having a plurality of pores. A plurality of metal nanoparticles are synthesized and immobilized within those plurality of pores. The nanoparticles are reduced and capped with a green reducing and capping agent such as green tea extract.

Abstract: Adsorbent filter media particularly suited for removal of biological contaminants in process liquids. A porous fixed bed of adsorbent material is formed, using only a granular adsorbent and a water-insoluble thermoplastic binder. The resulting composite filter allows for a higher amount of adsorbent with smaller adsorbent particles than conventional depth filters. Elimination of cellulose fiber, as well as the elimination of the thermoset binder, results in reduced contamination of the process liquid.

Abstract: Introducing a combination of high surface area growth media and biological reactants into a sewage treatment process with or without additional reaction to improve and increase capacity of a given process. The high surface area media and biological reactants can be dispersed at strategic locations in a new or existing attached growth wastewater treatment plant so as to provide additional sites for biological growth and improved wastewater renovation.

Abstract: A process for treatment of water. Hardness and non-hydroxide alkalinity are removed from feedwaters to an extent sufficient to avoid scaling when concentrated. Sparingly ionizable components in the feedwater are urged toward increased ionization by increasing the pH of the feedwater. In this manner, species such as silica become highly ionized, and (a) their rejection by membranes used in the process is significantly increased, and (b) their solubility in the reject stream from the membrane process is significantly increased. Sparingly ionized species such as boron, silica, and TOC are highly rejected. Recovery ratios of ninety percent (90%) or higher are achievable with many feedwaters, while simultaneously achieving a substantial reduction in cleaning frequency of membranes used in the process.

Abstract: The present invention relates to an apparatus for the regulation of at least one filtration value in a machine for the treatment of a medical fluid, in particular in a blood treatment machine, having at least one centrifugal pumping means, to a hemodialysis machine and to a method and to a use therefor.

Abstract: A system for draining sludge is provided using water-permeable hoses which are closed at both ends and filled with sludge. A first, lower row of sludge-filled hoses located parallel to one another, and one beside the other, has arranged on it at least a second row of sludge-filled hoses located parallel to one another, and one beside the other. The second row can have arranged on it a third, fourth or further row of sludge-filled hoses. On the upper side of each row which bears at least one further row of sludge-filled hoses, drainage pipes, which extend over the length of the hoses, are arranged in the upwardly open channels, which are formed by in each case two sludge-filled hoses located one beside the other. The hoses have a diameter of 0.4 to 1.6 m and a length of at least 10 m.

Abstract: The invention relates to oil-tolerant water-filtration membranes comprising a microporous hydrogel coated on a porous polymeric support membrane, useful in separating hydrocarbons and hydrocarbon emulsions from a water sample. The oil-tolerant water-filtration membranes comprising a hydrophilic microporous crosslinked polymeric hydrogel coated on at least one side of a porous polymeric support membrane. The water-filtration membrane having a first face corresponding to the discrimination layer and a second face corresponding to the porous support, applying pressure to a water solution, having at least one solute, at the first face of the water-filtration membrane, and collecting purified water at the second face of water-filtration membrane. Polymeric membranes have many advantages over ceramics, including inexpensive manufacture and the ability to be manufactured into very compact (high surface area) elements.

Abstract: The present invention relates to a method for obtaining materials based on treating solids by interaction with ferrofluids to give the final product a superparamagnetic behaviour at a moderate temperature. Said superparamagnetic materials are the result of the assembly of metal oxide nanoparticles associated to a compound with a surfactant effect, such as oleic acid, which are provided by a non-aqueous ferrofluid to different types of solids, preferably having adsorbent, absorbent or reactant and product support properties. The invention also relates to the material obtained by this procedure and its use in various applications such as adsorbents, sensors, ion exchangers the removal of toxic or radioactive contaminants, in chromatographic separation processes, in medical and biological applications, as carriers of biologically derived materials such as enzymes, as polymer fillers, absorption of electromagnetic radiation, as well as metal oxide and catalyst precursors.

Abstract: A system for dewatering a stream of slurry has a first and a second separator. The first separator removes objects above a first size, to produce a stream of primary treated slurry. The second separator removes objects above a second size from the primary treated stream, the second size being smaller than the first size. Optionally, a third separator removes objects above a yet smaller third size from the stream of secondary treated slurry. The first separator has a plurality of sieve mat supports alternately connected to a main support frame section and a movable support frame section so that the flexible sieve mat can be agitated by the movable support frame section, a collector being provided for collecting the primary treated slurry passing through the flexible sieve mat. In an optional step, water contained in the separated solids is removed.

Abstract: A programmable fluid treatment system including a mechanical subsystem and a computer control subsystem where the mechanical subsystem includes a fluid collection sump for capturing a fluid medium, a chemical mixing tank for injecting engineered chemicals into the fluid medium for separating a plurality of targeted compounds, an air flotation tank for creating a floating agglomeration of targeted compounds and engineered chemicals for mechanical removal, the computer control subsystem including a control unit for continuously monitoring a plurality of sensed parameters, a computer for continuously to comparing the sensed parameters with pre-programmed input data for continuously generating correction signals fed back to the mechanical subsystem via the control unit for maintaining the sensed parameters within limitations set by regulation, and for continuously adjusting and realtime reporting to regulators, the operation of the mechanical subsystem including the engineered chemicals in accordance with a dynam

Abstract: A method for treating, and recovering phosphate compounds from, phosphate-containing wastewater. The method includes the steps of: (a) removing fluoride from the wastewater; (b) recovering a phosphate compound from the wastewater by maintaining super saturation conditions for the phosphate compound; and (c) polishing the wastewater. A silica removal step may be optionally performed after step (a) and before step (b).

Abstract: The present invention relates to the technical field of environmental protection, especially relating to an efficiently-inactivating and energy-saving method for processing ship ballast water, which comprising the following processes: A) a filtering process, in which ship ballast water is filtered to remove the large grained organisms and solids; and B) a sterilizing process, in which the filtered water flows through a sterilization processing unit to have the organisms and bacteria in the water killed. Correspondingly, the present invention also discloses a system for processing ship ballast water, which has advantages as follows: low energy consumption, high efficiency, convenient installation simple and no pollution after processing.

Abstract: A fluid filter assembly includes a housing oriented along a vertical axis. A filter medium is disposed within the housing, oriented along the vertical axis, and has a filtration rating. The filter medium traps particulates having a particulate size greater than the filtration rating. A particulate containment space is located below the filter medium relative to the vertical axis and is defined by an inner surface of the housing and a lower end of the filter medium. A re-entrainment reduction structure, having an array of hollow cells, is positioned within the particulate containment space for receiving dislodged particulates.

Abstract: Embodiments presented herein provide a removable disk library system. The removable disk library system, in embodiments, comprises an array of removable disk drive bays and a movable connector system. Each removable disk drive bay can hold a removable disk drive cartridge. The movable connector system can be positioned behind the array of removable disk drive bays where the movable connector system can access the connector of the removable disk drive cartridges. In embodiments, the movable connector system includes a movable connector assembly that can automatically connect to the connector at the rear of the removable disk drive.

Abstract: A freestanding display rack is made of existing fiber recycling chains and can be shipped in a knocked-down flattened condition. The display rack comprises a pair of spaced apart side panels each having an outer surface, and an inner surface facing an opposite side panel. A back panel is attached to the side panels by interfitting tabs and notches along adjacent edges of the back panel and the side panels. A plurality of shelves extending between and supported at their opposite ends on the side panels by mechanical interlocking means engaged between the shelves and the side panels. The mechanical interlocking comprises channels formed in the inner surface of each the side panel, and depending flanges on opposite side edges of each the shelf engaged in a respective the channel. A graphics header extends above the shelves and side panels.

Abstract: A freestanding display rack used for supporting and displaying product at a point of sale. The display rack is made entirely of fiber recycling chains and can be shipped in a knocked-down flattened condition. The display rack comprises a pair of spaced apart side panels and a plurality of shelves extend between and supported at their opposite ends on the side panels by a plurality of mechanical interlocking engaged between the shelves and the side panels. The plurality of mechanical interlocking means comprise slots in the side panels and tabs integral with the shelves on opposite ends thereof extended through the slots. An opening formed in an end of each of the tabs projecting through the slots in the respective side panel. A locking pin inserted in each the opening to prevent withdrawal of the tabs from the slots. A graphics header extends above the shelves and side panels.

Abstract: A merchandise display system includes a base and divider assembly, wherein the base and divider assembly includes a base portion adapted for operative coupling to a front rail and a divider portion for dividing displayed merchandise into rows, wherein the divider portion protrudes from the base portion. A pusher track is defined on one of the base portion and the divider portion and accommodates a spring urged pusher. A flange protrudes away from the divider such that the flange extends in a direction away from the track.

Abstract: A portable clothes line having foldable legs able to be held in an extended position by struts which have at an upper end a traveller which slides in and along a lowermost open cavity provided by body being an elongated aluminium extrusion.

Abstract: A display structure has a base with non-rotatable sides and rotatable sides containing a first part with and a second part, the parts fastened by a rotatable fastener; a post containing a first and second face, the two non-rotatable sides fastened to the lower end of the posts, and the rotatable sides fastened to the lower end of the posts, a rotatable fastening means specially located so as to allow rotation of the parts in regards to the post; and a top with non-rotatable and rotatable sides, the non-rotatable sides of the top fastened to the top of the post, the rotatable side of the top fastened to the non-rotatable sides of the top with rotatable fastening means, said rotatable fastening means of the top are specially located to allow rotation of the parts in regards to the non-rotatable side.

Abstract: A display rack capable of being transformed between a first configuration, in which a plurality of rack boxes are arranged in tiers and a second configuration, in which the plurality of rack boxes are vertically arranged in line, the display rack comprising an upper rack having an upper rack box and an upper back plate for holding the upper rack box, a lower rack having a lower rack box and a lower back plate for holding the lower rack box, and a connection member for connecting the upper rack and the lower rack the connection member being rotatably supported at a horizontal line lower than the upper rack box on a front side of the upper back plate and a horizontal line higher than the lower box on a back side of the lower back plate.

Abstract: A freestanding display rack for supporting and displaying product at a point of sale comprises a pair of spaced apart side panels. A back panel is attached to the side panels by interfitting tabs and notches along adjacent edges of the back panel and the side panels. A plurality of shelves extends between and supported at their opposite ends on the side panels by mechanical interlocking means engaged between the shelves and the side panels. The mechanical interlocking means comprises a slot formed through the side panels adjacent each of the shelves and a tongue projecting outwardly from each end of the shelves. The tongues extend through the respective slot in the side panels and being folded against an outer surface of the respective side panel. A graphics header extends above the shelves and side panels.

Abstract: The present invention relates to a bracket or support member (119.771) including a body (119.770), at least one arm or hook extending away from the body that can be inserted through an aperture (104.704) in a support means (104.700), the at least one arm or hook (119.722) including an end portion (119.720) which is adapted to be received into a recess (104.702) on a rear surface of the support means (104.700). A support system (FIG. 124) is also disclosed which utilises the bracket or support member (119.771) in combination with an apertured panel (124.700). The invention also relates to bracket systems and brackets.

Abstract: A luffing-jib tower crane, comprising a tower and a jib which is connected to the tower via a joint and is held by a luffing cable, wherein the length of the luffing cable can be changed by a drawing-in unit, by the luffing cable being wound onto or unwound from a cable drum of the drawing-in unit, wherein the angle of the jib with respect to the horizontal plane is measured by a first sensor winch is attached to the jib (first angular value), wherein a measuring device measures the length of the unwound part of the luffing cable, from which length the minimum angle of the jib with respect to the horizontal plane (second angular value) can be calculated, and the first angular value can be compared with the second angular value.

Abstract: The purpose of the invention is to remove the excess air in an opened, partially used bottle containing effervescent beverages. Further use of the invention can be employed when viscous substances are contained. This is achieved by rotating a base of a bottle that is connected to a tab at the bottom of an inner bladder liner that is contained inside a bottle. The invention shows a bottle system for dispensing and maintaining effervescent beverages fresher for a longer period of time after a bottle has been opened. The bottle also improves the dispensing of thick substances found in many products that have viscous properties. The system offers a more efficient, easy solution for the dispensing of such substances from their containers by employing a collapsible inner bladder liner contained inside a bottle.

Abstract: Disclosed is a bottle having a programmable combination locking cap. The locking cap has an upper cap, which locks onto a canister. The locking cap has various layers of rings so that the rings can be aligned in a combination code in order to remove the locked cap from the canister.

Abstract: Closures having an integrated over center latching assembly including an end wall, a skirt wall depending from the end wall, an outlet opening associated with the end wall and an over center latching assembly are disclosed. The over center latching assembly includes a link pivotally coupled to the closure at a first pivot point, a lever pivotally coupled to the link at a second pivot point, a closing member pivotally coupled to the closure at a third pivot point and pivotally coupled to the lever at a forth pivot point and a biasing spring coupled between the first pivot point and the fourth pivot point. The link and the lever are configured to move the over center latching assembly between a first position and a second position and the closing member is configured to close the outlet opening when the over center latching assembly is moved to the second position.

Abstract: A cap arranged to interact with a spout. The cap comprises a top section, a side wall section attached to the top section and a tamper element attached to the side wall section in a tearing interface. The tearing interface may be provided with a weakening line that is arranged to break when the cap is unscrewed such that the tamper element is separated from the side wall section. The cap further comprises at least one resilient cutting element arranged to the side wall. The at least one resilient cutting element is arranged to cut off a membrane of the spout when the cap is unscrewed. The cap is arranged such that the weakening line is arranged to break before the membrane of the spout is cut off when the cap is being unscrewed from the spout.

Abstract: A petaloid base for a self-standing container has an approximately hemispherical underlying base contour and a plurality of ovoid foot formations that interrupt and project from the underlying base contour to define a corresponding plurality of feet. Its shape resists stress cracking, maximises capacity relative to the height of the container and reduces the surface area of the base and hence material usage in comparison with equivalent known designs.

Abstract: The present invention relates to a method of making a mask for patterning a thin film The method includes a step of forming an inorganic material, which is resolvable into alkali solution, on a substrate; a step of forming the inorganic material in a predetermined pattern; and a step of narrowing the inorganic material with the alkali solution to form the mask.

Abstract: According to one embodiment, a method of manufacturing a magnetic recording head includes forming a main pole, forming an oscillator forming layer includes an underlayer, a spin injection layer, an interlayer, an oscillator layer, and a cap layer on a trailing end surface and sidewalls of the main pole, and removing those parts of the oscillator forming layer which are formed on the sidewalls of the main pole, thereby forming a high-frequency oscillator which is aligned with a width of at least the trailing end surface of the main pole.

Abstract: A method of reducing roughness in an opening in a surface of a resist material disposed on a substrate, comprises generating a plasma having a plasma sheath and ions therein. The method also includes modifying a shape of a boundary defined between the plasma and the plasma sheath with a plasma sheath modifier so that a portion of the boundary facing the resist material is not parallel to a plane defined by the surface of the substrate. The method also includes providing a first exposure of ions while the substrate is in a first position, the first exposure comprising ions accelerated across the boundary having the modified shape toward the resist material over an angular range with respect to the surface of the substrate.

Abstract: A shadow mask, a method of manufacturing the shadow mask, and a method of forming a thin film using the shadow mask are provided. The shadow mask includes an upper layer and a lower layer. The upper layer includes a first opening. The lower layer is formed on a lower surface of the upper layer around the first opening and includes an opening having the same size as the first opening. When the thin film is formed using the shadow mask, the lower layer of the shadow mask is close to the edge of a cavity of a substrate, and a position on which the thin film may be formed as defined by the lower layer of the shadow mask. Therefore, the thickness of the thin film can be uniform.

Abstract: The invention relates to an inductively-coupled plasma processing apparatus and a method for processing a substrate. By arranging a magnetic field line adjusting component made of magnetic conductive material, a quasi-closed low reluctance path is formed to serve as the path of the magnetic field line loop outside of the reaction chamber, and the path of most magnetic field lines of the induced magnetic field is constrained by the low reluctance path. In this way, most of magnetic field energy diverged previously may be gathered, and then the magnetic field is multiplied; alternatively, less energy is required to obtain the same magnetic field strength to generate plasma for performing etching, which improves utilization efficiency of energy source.