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a method and apparatus for multiple - input multiple - output signal decoding using complex lattice reduction in a multiple antenna system is provided . the method provides mimo signal decoding with increased operating speed using a transformation of reducing the lattice basis directly to a complex channel matrix that ... | 7 |
a method of securing an elastic band between two material layers which are at least partially defined by meltable material includes forming perforations in the elastic band , placing the elastic band between two material layers , and bonding the material layers to one another through the perforations by heat fusion , w... | 8 |
this invention relates to compounds of the formula : or a pharmaceutically acceptable salt thereof , wherein : a , r 1 , r 2 , r 3 , r 4 and r 5 are each as described herein or a pharmaceutically acceptable salt , and compositions containing such compounds and the use of such compounds in the treatment of a condition m... | 2 |
a pet bed assembly for supporting a pet above a user &# 39 ; s bed thereby preventing the pet from disturbing the user when sleeping includes a clamp that may releasably engage a footboard and extend above the footboard . a platform is coupled to the clamp . the platform extends over the bed when the clamp is coupled t... | 0 |
a system and method is disclosed for removing dissolved organic impurities , such as gasoline or other hydrocarbons , from groundwater . the contaminated water is fed into a stripper column , operated under a deep vacuum , to enable the water to enter the column at its boiling point . steam , as a vaporizing gas , stri... | 8 |
an apparatus and method for photodynamic therapy or photodynamic diagnosis using an illuminator comprising a plurality of light sources generally conforming to a contoured surface and irradiating the contoured surface with substantially uniform intensity visible light . the light sources may comprise generally u - shap... | 0 |
a screw jack , for raising the power piston of a diesel engine &# 39 ; s control governor until the power piston firmly clamps the gap gage , is provided to maintain the piston in its full load position during the adjustment of the engine fuel pump racks to match the governor piston gage , this adjustment being done wh... | 5 |
a dispenser sequentially dispenses a plurality of containers . the dispenser includes a housing having a front , a rear , a top , a bottom , a first side and a second side , with an inlet and an outlet for the containers being disposed on its front . a passage is disposed within the housing and guides the containers fr... | 0 |
the invention disclosed herein provides tunable process for the preparation of water dispersive , biocompatible , fluorescent l - cystine labeled gold quantum clusters without using any toxic reactants . further the invention discloses application of synthesized fluorescent gold quantum clusters in the field of nano - ... | 1 |
a device for shaping at least one thread - like material , which is formed in a forming unit and is deposited on a transporting device for the subsequent thermosetting process , wherein a retaining means and a drivable , curved depositing tube are arranged one after the other in the thread transporting direction . | 3 |
a method and system for maintaining computer security including providing a signature file ; receiving an incoming message from at least one client computer ; comparing the received incoming message with the signature file to determine whether the incoming message is malicious ; and blocking the incoming messages deter... | 6 |
vectorized likelihood calculations and basis conversions for ~20% performance enhancement added tutorial for creating custom likelihoods and performing a joint RV+light curve fit | 9 |
a system includes first circuitry in a first computing device configured to issue a credential , second circuitry in a second computing device configured to perform an operation corresponding to content at a third computing device based on the credential , third circuitry in the third computing device configured to rec... | 7 |
a method for aggregating or combining signaling messages for the adaptation of resource reservations required for route modifications is provided . according to the method , a modification of an inter - domain route requiring an adaptation of resource reservations is disclosed to a first routing domain . the first rout... | 7 |
this application is directed to methods of assessing polymer deposition on dental surfaces using near infrared spectroscopy , providing a rapid and efficient method to screen for and identify optimal polymers for use in oral care formulations , near infra red absorption of a dental substrate is measured in the absence ... | 6 |
an oral - care device with a power cleaning head is disclosed . the power cleaning head comprises squeegee wiping elements or squeegee wiping elements and bristles . the power cleaning head is configured to rotate , oscillate , vibrate or otherwise move while cleaning teeth and gums . | 0 |
a light emitting device is disclosed including a primary light source having a defined emission photon energy output , and , a light emitting material situated near to said primary light source , said light emitting material having an absorption onset equal to or less in photon energy than the emission photon energy ou... | 1 |
a half bridge power converter which employs a gapped transformer which permits stable asymmetrical operation without the use of a separate choke arranged in parallel with the primary of the transformer . the half bridge power convert may include a small capacitor on its secondary side to cause a high ripple of the outp... | 8 |
a spring - type embroidery hoop or knitting ring includes a plastic annular member with an interiorly - grooved surface , a spring - loaded member that fits securely with the free ends of said spring - loaded member projecting radially outwardly , and a locking member that restrains the free ends of the spring - loaded... | 3 |
We present a detailed study of the X-ray emission from PSR B1055–52 using XMM-Newton observations from 2019 and 2000. The phase-integrated X-ray emission from this pulsar is poorly described by existing models of neutron star atmospheres. Instead, we confirm that, similar to other middle-aged pulsars, the best-fitting ... | 9 |
a harvester for plants and weeds , particularly aquatic plants , pulls the plants by winding them onto a rotating , endless cable . tension in the cable is controlled , and an operative portion of the cable is positionable for varying its height and angle to the horizontal . the harvester is mountable on a boat having ... | 1 |
a utensil used for removing pits from cherries and similar fruits . a clawed and tunneled utensil used to cleanly remove pits from the bottom of cherries or other similar fruits with a single one - sided hole keeping the stem and fruit intact . | 0 |
a method for producing a metal - containing transparent polymer by the reaction of a metal carboxylate , with a clear setting resin system comprising a thermosetting resin and a curing agent . the reaction occurs in a temperature in the range of from about 0 ° to about 100 ° c . under conditions which prevent air from ... | 2 |
a circuit for maintaining the order of transmission of information in a computer interconnect including control circuitry for sending a signal from a source of data to a destination for data indicating that data is ready for transfer , the control circuitry comprising a plurality of buffers for storing information rela... | 7 |
in an icd , a highly efficient biphasic defibrillation pulse is generated by switching at least two charged capacitors from a parallel connection to various combinations of a parallel / series connection or a series connection during the first phase of the defibrillation pulse . such mid - stream parallel / series conn... | 0 |
Context. About 25% -- 50% of white dwarfs are found to be contaminated by heavy elements, which are believed to originate from external sources such as planetary materials. Elemental abundances suggest that most of the pollutants are rocky objects and only a small fraction of white dwarfs bear traces of volatile accret... | 9 |
Radar observations indicate that about 16% of near-Earth asteroids may be binary systems with likely fast-spinning spheroidal primaries [1]. The formation mechanism of such systems remains uncertain, although it may be linked to rotation-driven structural reconfiguration if these asteroids are rubble piles [2]. On 26 S... | 9 |
a fluid treatment system for treating feed water includes a first tubular member having first and second ends , at least one second tubular member having first and second ends , a pump positioned within the first tubular member , a filtering membrane positioned within the second tubular member , a first end cap for rec... | 2 |
a portable ski and / or snowboard edge sharpener and method . the edge sharpener includes an abrasive grinding wheel , a belt driven drive train that connects the electric motor and the grinding wheel drive mechanism and decreases the grinding wheel &# 39 ; s speed of rotation relative to the rotational speed of the mo... | 1 |
The Pan-STARRS data-processing system is responsible for the steps needed to downloaded, archive, and process all images obtained by the Pan-STARRS telescopes, including real-time detection of transient sources such as supernovae and moving objects including potentially hazardous asteroids. With a nightly data volume o... | 9 |
Early in the reionization process, the intergalactic medium (IGM) would have been quite inhomogeneous on small scales, due to the low Jeans mass in the neutral IGM and the hierarchical growth of structure in a cold dark matter universe. This small-scale structure acted as an important sink during the epoch of reionizat... | 9 |
a method of purifying 1α - hydroxy - 20 - methyl - 2 - methylene - 19 , 24 , 25 , 26 , 27 - pentanorvitamin d 3 to obtain 1α - hydroxy - 20 - methyl - 2 - methylene - 19 , 24 , 25 , 26 , 27 - pentanorvitamin d 3 in crystalline form . the method includes the steps of preparing a solvent of either ethyl formate or a mixt... | 2 |
disclosed is a garbage collection algorithm that achieves hierarchical copy order with parallel garbage collection threads . more specifically , the present invention provides a garbage collection method and system for copying objects from a from - space to a to - space . the method comprises the steps of having multip... | 6 |
a method for automatically scheduling phone calls , including dynamically assigning priorities to each of a plurality of a user &# 39 ; s contacts , selecting one of the plurality of the user &# 39 ; s contacts based on highest priority , wherein random selection is used in case more than one contact has the highest pr... | 7 |
a planar surfaced electrical musical instrument is provided which is configured to support both feet of a user standing upon it during use . supported by the device , the standing user may generate sound , such as drums , through a contact of one or both feet with the planar upper surface which is in operative contact ... | 6 |
it relates to a grill intended for grilling meat and other products , and for making paellas and any other dishes , essentially used for large gastronomic events . it is characterized in that it comprises in principle a lower base with legs and an upper grating which bears the different foods to cook , in such a way th... | 0 |
a method of optically inspecting a fastener to determine whether it meets two or more dimensional parameters is provided . the method includes using centrifugal force to place the fastener in a predetermined location . two or more sets of image data of the fastener are generated from two or more corresponding different... | 8 |
the following steps are carried out : forming a gate electrode on a semiconductor substrate with a gate insulating film interposed therebetween , forming a dummy gate electrode on the semiconductor substrate with a dummy gate insulating film interposed therebeweeen and forming another dummy gate electrode on the semico... | 7 |
the invention relates to a method and system to arrange multicasting in a communication system that comprises a first source and receiver connected to the source by the ssm protocol . in the method according to the invention , the first source sends a message on the activity of the source to the receiver . the inventio... | 7 |
a method of treating or preventing age - related retinal dysfunction involves administering to a patient a pharmaceutically effective amount of a synthetic retinal derivative repeatedly over a duration of at least about 3 months . effective synthetic retinal derivatives include 9 - cis - retinyl esters , 11 - cis - ret... | 0 |
the subject matter of the present invention is a vibrato device which can be used in most stringed musical instruments as an integral unit to effectively vary and return the instrument to pitch / in tune . the vibrato device can include a plurality of flush tension springs , a mounting plate and a pivoting element to c... | 6 |
We present radiation-magneto-hydrodynamic simulations of star formation in self-gravitating, turbulent molecular clouds, modelling the formation of individual massive stars, including their UV radiation feedback. The set of simulations have cloud masses between m<SUB>gas</SUB> = 10<SUP>3</SUP> M<SUB>⊙</SUB> and 3 × 10<... | 9 |
an access request prioritization and summary device for determining the current highest priority among n entities . the device includes a bitmap having n bit storage locations . each one of the n bit storage locations corresponds to one of the entities and is used to store a value which represents when the correspondin... | 6 |
the present invention is directed to a bale retrieving and transporting apparatus used in conjunction with a tractor . this apparatus includes both a lower and rear supporting structure to retrieve and support the bales . mounted to the rear supporting structure is a means for discharging the bale from the apparatus . | 0 |
a flexible connection arrangement is provided which is useful in a pressure control device for a braking system , for example , and a pressure control device utilizing the flexible arrangement is described . the flexible connection arrangement eliminates the need of an interrupting conductor , thereby reducing the numb... | 7 |
an apparatus , system , and method for subjecting biomass to pyrolysis to extract energy products using a pyrolysis unit comprising generally concentric chambers including a combustion chamber and at least one pyrolysis chamber . each chamber is in communication with an adjacent chamber such that a directed , generally... | 2 |
method for preparing cinacalcet hydrochloride having the steps of heating - 1 - naphthyl ethylamine and 3 - benzene wherein l is a halogen atom , methanesulfonate group , p - toluenesulfonate , or triflate , in an organic solvent in presence of an inorganic base , refluxing until 3 - benzene is completely consumed , ob... | 2 |
an organosilicon compound represented by the general formula : ## str1 ## wherein rf represents a perfluoroalkyl group or a perfluoroalkyl ether group ; r 1 may be the same or different and each represent a monovalent hydrocarbon group ; r 2 represents an alkylene group ; r 3 represents a hydrogen atom or a monovalent ... | 2 |
a metallic frame for use in a fluorescent display panel having a cig structure and containing a driver ic chip in a vacuum chamber . the metallic frame includes a box - type metallic shield covering the ic chip , metallic external leads , and a deformable part coupled between the box - type metallic shield and the meta... | 8 |
an improved antenna having at least one dipole or an antenna element arrangement which is similar to a dipole is distinguished in that the antenna element arrangement is connected capacitively and / or electrically conductively without touching to the reflector or to a reflector or a substrate which is non - conductive... | 7 |
this invention relates to optical metrology tools that are used to evaluate small measurement areas on a semiconductor wafer , where the measurement area is surrounded by a material different from the measurement area . in one embodiment , a probe beam is scanned over the measurement area and the surrounding material a... | 7 |
this invention relates to a device to monitor the administration of a fluid through a conduit , such as intravenous fluid , and detect the completion of fluid delivery by monitoring the fluid level inside a chamber . the device will monitor , through an optical fluid sensor comprising a radiation source , two sensors ,... | 0 |
the present invention relates to a crystalline polymorphic form of remifentanil hydrochloride . the invention also describes methods of preparing a polymorphic form of remifentanil hydrochloride . | 2 |
a positioning method in a supl based position information system , and more particularly , a method for performing periodic positioning capable of processing a periodic positioning request by a location server or a periodic positioning request by a mobile communications terminal when the location server and the termina... | 6 |
in a power supply system for use in a radio communication system comprising a base station for transmitting and receiving radio signals , one or more repeater stations for repeating the radio signals , and a terminal station communicating with the base station through the repeating stations , the base station comprises... | 8 |
a method and apparatus for automatically establishing an audio conference call where one of a number of audio conference call service providers must be selected . with this invention a resource broker receives requests from a number of users desiring to establish an audio conference call . profile data on a number of c... | 7 |
a resonant element including : a vibrating body vibratable in orthogonal x - and z - directions ; exciting means for causing the vibrating body to be subjected to an excitation vibration in the x - direction ; excitation deflection detecting means for detecting the deflection of the vibrating body in the z - direction ... | 6 |
a precise navigation system utilizing a fleet of deployed rf beacons and an associated application . the rf beacons are installed in known locations about a predefined facility area . the rf beacons emit either a bluetooth or wi - fi beacon signal . an rf beacon identifier is encoded into the beacon signal . the locati... | 6 |
a method of using a plastic extruder equipped with an extrusion die and a gloss controlling auxiliary die to produce an extrudate of polymeric material having controlled gloss appearance comprising the steps of first extruding an extrudate of polymeric material through the extrusion die and then passing the extrudate i... | 1 |
Jupiter's moon Europa, which is thought to possess a large liquid water ocean beneath its icy crust, is one of the most compelling targets in the search for life beyond Earth. Its geologically young surface, along with a number of surface features, indicate that material from Europa's interior may be emplaced on the su... | 9 |
this invention relates to novel ortho - benzenesulfonamides , such as n - aminocarbonyl ]- 2 - benzenesulfonamide , and their use as pre - emergent or post - emergent herbicides or plant growth regulants . | 2 |
a method for the preparation of d - chiro - inositol from kasugamycin , comprising the steps of : reacting kasugamycin with an acetylating agent to form a crude hexa - acetate intermediate ; purifying the crude intermediate to form purified hexa - acetate intermediate ; deacetylating the purified intermediate to form d... | 2 |
a method of and apparatus for detecting diseased tissue based upon infrared imaging in two different bands of infrared wavelengths is described . the use of two series of infrared images taken in two different bands of infrared wavelengths increases sensitivity to the subtle temperature changes caused by diseased skin ... | 0 |
an apparatus for removing oil from air in an air compressor that has a piston reciprocable in a cylinder to compress the air , includes an oil removal chamber associated with the compressor . an unloader valve has an unactuated condition and an actuated condition disabling flow of compressed air out of the compressor a... | 5 |
parasitic feed - through capacitance effects in a resonator circuit are reduced by separating the resonator signal from the feed - through capacitance signal and then detecting the resonator signal with comparator circuitry . in specific embodiments , the separation of the resonator signal from the feed - through capac... | 7 |
a method for removing coating defects from a vehicle body or the like includes the steps of putting a defect information mark on a defect portion of an inspected object &# 39 ; s coating , recognizing a position and a removal setting of the defect portion from the defect information mark , and non - contact removal of ... | 1 |
a system for creating a clad material that includes at least one substrate ; at least one cladding layer ; at least one surface activation layer disposed between the at least one substrate and the at least one cladding layer ; and a resistance seam welder , wherein the resistance seam welder is operative to generate he... | 1 |
Context. LIGO-Virgo-KAGRA observations may identify the remnant of compact binary coalescence and core-collapse supernovae associated with gamma-ray bursts. The multimessenger event GW170817-GRB170817A appears ripe for this purpose thanks to its fortuitous close proximity at 40 Mpc. Its post-merger emission, ℰ<SUB>GW</... | 9 |
the present invention is a pumping system which mixes liquids with a well - controlled proportioning and flow rate . the pumping system according to the invention comprises a liquid mixing device placed upstream from a pump . the liquids are taken from vessels , cyclically introduced , in a determined proportion , in a... | 5 |
the present invention comprises an improved method and apparatus for treating water in heat exchange systems . the present invention automatically and inexpensively provides an effective chemical to process water systems at times and in proportion to the need for water treatment in such systems . when used in evaporati... | 1 |
The old nova and intermediate polar (IP) GK Persei underwent one of its recurrent dwarf nova (DN) outbursts in 2018. We proposed monitoring it in UV and X-rays with the Neil Gehrels Swift Observatory, starting less than six days after the eruption, until 16 days after the eruption ended. For the first time, we could fo... | 9 |
a calculation device includes : a programmable logic device including a plurality of circuit arrangement areas each to which power supply voltage allowed to be independently controlled is supplied ; and a calculation circuit coupled to the programmable logic device , wherein the calculation circuit : arranges a main ci... | 7 |
a corrugated tube with a longitudinal slit is loaded with electrical wires and the slit is locked . this process is effected using one device and in a single step . the corrugated tube is provided on its outer surface with circular peaks and troughs alternating along the axial direction . the portions facing one anothe... | 8 |
in the course of unit timing , there exists the possibility for a non - compute on a particular net in an ic chip design , which could be caused by numerous things , including but not limited to a pin being tied to power , a floating output , or invalid timing test for a given phase at a test point . a process automati... | 6 |
a spike tire for a vehicle and which includes a pin receptacle hole formed on the tread surface of the tire ; a spike pin retractably protrudable from the pin receptacle hole ; a biasing mechanism for continuously urging the spike pin to protrude from the pin receptacle hole ; and an actuating member of a shape memory ... | 1 |
We report 15 new VRI light curves of five low-mass eclipsing binaries (NSVS 02502726, NSVS 07453183, NSVS 11868841, NSVS 06550671 and NSVS 10653195) that were observed between 2010 and 2012. We analysed our new data together with three published spectroscopic observations and seven published light curves using a modifi... | 9 |
a point driver is provided that comprises a body , a selectively operable actuator , a pushplate connected to the actuator , and a head . the head includes a channel disposed between a first section and a second section . at least a segment of the channel follows an arcuate path . the head is aligned with the actuator ... | 1 |
With recent advances in neutron star observations, major progress has been made in determining the pressure of neutron star matter at high density. This pressure is constrained by the neutron star deformability, as determined from gravitational waves emitted in a neutron star merger, and measurements of the radii of tw... | 9 |
a family of composite fabrics is disclosed , such fabrics comprising a relatively thick , contoured textile substrate or base onto which is applied a coating to provide an upholstery fabric having a unique appearance and texture . surface contours , and in some cases portions of the underlying base fabric over which th... | 1 |
the present invention is directed to an inhaler assist device shaped and dimensioned for supporting a metered dose inhaler and an associated anti - static chamber in a manner allowing for assisted compression of the metered dose inhaler to dispense a dosage therefrom . the inhaler assist device includes an l - shaped h... | 0 |
an improved retractable covering for an architectural opening includes an improved mounting bracket , an improved limit stop to prevent over - retraction and over - extension of the retractable covering , an improved battery pack mounting bracket for attaching a power supply to a head rail of the retractable covering ,... | 8 |
an interior equipment element 2 for vehicle cabins , in particular of aircraft . the interior equipment element 2 consists of at least one first portion 7 , on the surface of which there is applied . | 1 |
an active implantable medical device , such as a double chamber pacemaker or defibrillator or cardiovertor , having an improved adjustment of atrial sensitivity and of atrial stimulation energy . this device includes control algorithms for suspecting a loss of atrial detection and / or atrial capture that operates by a... | 0 |
diffused light is projected onto a supported thin film in the form of a truncated sphere . the device has a light source disposed at the bottom end of a housing constructed of a light shielding material , and a diffuser plate at the top end of the housing to emit light into the truncated sphere . in one embodiment the ... | 8 |
a gas turbine combustion air cooling system includes an intake a duct having an inlet region and an outlet , the duct adapted to supply ambient air to an inlet of a compressor ; a first set of nozzles for spraying atomized water into the ambient air at a location adjacent the duct inlet ; a second set of nozzles for sp... | 5 |
a method for freezing a food product in a cryogenic freezer includes sensing at least one physical characteristic of the food product in real time , providing a cryogenic substance to the food product for heat transfer at said food product , automatically self - adjusting the heat transfer at the food product responsiv... | 5 |
an improved metal encased radial - type oil shaft seal of either single or dual lip construction wherein the primary seal lip is polytetrafluoroethylene -- or the like and is bonded and mechanically interlocked to the metal case by an elastomeric material . | 1 |
a package for storing and shipping flat panel products includes a shock - absorbing inner protective material , a telescoping outer packaging material , adjustable to the size of the product being shipped , and an outer binder , such as a plastic banding material . the inner wrapping material is provided around a circu... | 1 |
We present a data reduction pipeline written in Python for data obtained with the near-infrared cross-dispersed echelle spectrograph, WINERED, which yields a 0.91–1.35 μm spectrum with the resolving power of ${R}_{\max }\equiv \lambda /{\rm{\Delta }}\lambda ={\rm{28,000}}$ or 70,000 depending on the observing mode. The... | 9 |
a pressure sensor includes a capacitive pressure sensor chip mounted with the intervention of a sealing member on a base adaptor so as to be detachable . the sensor chip being constructed in a manner that a second substrate with a diaphragm electrode is placed between a first substrate with a fixed electrode and a thir... | 6 |
Cool stars on the main sequence generate X-rays from coronal activity, powered by a convective dynamo. With increasing temperature, the convective envelope becomes smaller and X-ray emission fainter. We present Chandra/HRC-I observations of four single stars with early A spectral types. Only the coolest star of this sa... | 9 |
polarization independent optical isolator / circulator devices based on mach - zehnder interferometers . the devices utilize either polarization splitting and nonreciprocal polarization conversion or nonreciprocal phase shift within the interferometric arm . for devices with nonreciprocal phase shift , the relative pha... | 6 |
a catalyst system for the selective carbonylation of conjugated dienes in the presence of a hydroxyl - group - containing compound in the liquid phase comprising a combination of : palladium or a compound of ; an organic phosphorus , antimony or arsenic derivative according to the formula : ## str1 ## wherein r 1 repre... | 2 |
the present invention provides a clutch having two pistons , a first piston defining a first , smaller area and a second piston , defining a second , larger area . the separate pistons are independently provided with flows of pressurized hydraulic fluid from first and second independent modulatable control valves . eng... | 5 |
bearing assemblies for downhole tools include a compensator member operatively associated with a slidable member and a bearing member . the slidable member is movable longitudinally relative to the bearing member . such movement of slidable member occurs when a force acts upwardly on the downhole tool . thus , the slid... | 4 |
a system and method for remote diagnosis and predictive maintenance of devices , machines , and systems has been presented . the system detects signals of one or more operating and condition parameters and compares the detected signals to a signal model maintained locally with respect to the location of the device , ma... | 6 |
carbon molecular sieves membranes having improved thermal and / or mechanical properties are disclosed herein . in one embodiment , a carbon molecular sieve membrane for separating a first and one or more second gases from a feed mixture of the first gas and one or more second gases comprises a hollow filamentary carbo... | 8 |
the invention provides a method for detection of receptor - or ion channel - modulators . the method comprises fractionating a sample by using a liquid - based separation means , and feeding the fractions containing the modulators directly to a biosensor . the biosensor is activatable by a receptor agonist and produces... | 8 |
disclosed is a variable drive current driver circuit , comprising : a pair of push - pull circuits for driving a load circuit complementarily ; a first current source circuit for having a bias current flow into the pair of push - pull circuits ; a second current source circuit for having the bias current flow out of th... | 7 |
method for preparing cinacalcet hydrochloride having the steps of heating - 1 - naphthyl ethylamine and 3 - benzene wherein l is a halogen atom , methanesulfonate group , p - toluenesulfonate , or triflate , in an organic solvent in presence of an inorganic base , refluxing until 3 - benzene is completely consumed , ob... | 2 |
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