for

Graphite crucible for silicon electromagnetic induction heating and apparatus for silicon melting and refining using the graphite crucible

Disclosed herein are a graphite crucible for electromagnetic induction-based silicon melting and an apparatus for silicon melting/refining using the same, which performs a melting operation by a combination of indirect melting and direct melting. The crucible is formed of a graphite material and includes a cylindrical body having an open upper part through which a silicon raw material is charged into the crucible, and an outer wall surrounded by an induction coil, wherein a plurality of slits are vertically formed through the outer wall and an inner wall of the crucible such that an electromagnetic force created by an electric current flowing in the induction coil acts toward an inner center of the crucible to prevent a silicon melt from contacting the inner wall of the crucible.




for

High performance heater

Systems and methods are provided for a high performance heater. In an embodiment, the high performance heater comprises a first stackable tray comprising a first alignment pin that insulates a first heating element disposed in the first stackable tray; a second stackable tray comprising a second alignment pin that insulates a second heating element disposed in the second stackable tray, wherein a top of the first alignment pin fits into a cutout of a bottom of the second alignment pin when the first and second stackable trays are stacked, and wherein the first and second stackable trays comprise one or more materials, an outer diameter and an inner diameter, and wherein an area between the outer diameter and the inner diameter of the stackable trays comprises at least one cutout portion that allows expansion of the material(s) when the high performance heater is at high temperatures.




for

Graphite crucible for electromagnetic induction melting silicon and apparatus for silicon melting and refining using the graphite crucible

A graphite crucible for electromagnetic induction-based silicon melting and an apparatus for silicon melting/refining using the same, which performs a melting operation by a combination of indirect melting and direct melting. The crucible is formed of a graphite material and includes a cylindrical body having an open upper part through which a silicon raw material is charged into the crucible, and an outer wall surround by an induction coil, wherein a plurality of first slits are vertically formed through the outer wall and an inner wall of the crucible, and a plurality of second slits are vertically formed from an edge of the disc-shaped bottom of the crucible toward a center of the bottom.




for

Vacuum cleaning structure for electrode furnace

An electrode for a resistance analytical furnace has a crucible-engaging surface and an end spaced from the crucible-engaging surface having a plurality of grooves formed therein. A manifold mounted on the end of the electrode defines a dust recovery plenum and includes an outlet communicating with the plenum for coupling to a vacuum source to remove debris from the electrode. The improved electrode and electrode cleaning manifold positioned on the electrode provides a turbulent airflow for removal of dust and debris from an analytical furnace.




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Torque limiting device, particularly for power transmission elements

A torque limiting device, particularly for power transmission elements, is provided. The torque limiting device includes a first connecting member and a second connecting member, which is connected rotatably to a driven element. The first connecting member includes a motor driving disk and the second connecting member includes a sliding disk, and further includes a pin supporting body which comprises a drum that is assembled on the second connecting member and includes a plurality of radial holes, each one of which accommodates a pin that is pressed, toward the center of the drum, by elastic means, and abuts, with at least one of its faces which is inclined with respect to the central rotation axis of the second connecting member, against at least one corresponding abutment face.




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Foldover tab for retainer spring stop

A vibration damper, including a cover plate with an annular portion, and a spring portion including spring retaining portions forming respective spaces and a spring blocking portions including respective protrusion segments and respective tab segments including respective portions of an edge of the cover plate and having a same first thickness. The damper includes springs at least partially located in the respective spaces, and having respective longitudinal ends, and a second cover plate or output flange connected to the cover plate. The springs are arranged to transmit torque to the cover plate. The respective protrusion segments have a same second thickness and include respective protrusions. Respective first portions of the longitudinal ends of the springs are engaged with the respective protrusions. Respective second portions of the longitudinal ends of the springs are engaged with the respective tab segments.




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Device for damping vibrations in a drive train

A device for damping vibrations in a drive train, in particular for plug screws in the pulp and paper industries. The device is principally characterized in that a cylindrical shaft, preferably designed as a hollow shaft, is provided, wherein the cylindrical shaft is arranged between the halves of a coupling and at least one ring having friction surfaces is arranged around the cylindrical shaft. Stick-slip vibrations that occur can thereby be favorably eliminated, and thus the gearbox and the motor of the drive train can be protected.




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Variable valve actuating apparatus for internal combustion engine

A variable valve actuating apparatus includes: a first rotary member which includes a rotor fixed to one of the inner cam shaft and the outer cam shaft, and a receiving chamber formed within the first rotary member, and which is arranged to be rotated in an advance angle direction or in a retard angle direction relative to the drive rotary member by a hydraulic pressure selectively supplied to or drained from the advance angle operation chamber and the retard angle operation chamber; and a second rotary member fixed to the other of the inner cam shaft and the outer cam shaft, rotatably received within the receiving chamber of the first rotary member, and arranged to be rotated relative to the first rotary member and the drive rotary member within a predetermined angle range.




for

Variable valve actuating apparatus for internal combustion engine

A variable valve actuating apparatus includes: a first lock recessed portion; a first lock member; a second lock recessed portion formed in the second rotary member's side; a second lock member; a first lock passage arranged to supply the hydraulic fluid, and thereby to move the first lock member out of the first lock recessed portion; and a second lock passage arranged to supply the hydraulic fluid, and thereby to move the second lock member out of the second lock recessed portion, at least a part of the first lock recessed portion and at least a part of the second lock recessed portion being disposed at a position to be projected in an axial direction when the first lock member and the second lock member are in the lock state.




for

Rotational vibration damper, particularly for the power train of a vehicle

A rotational vibration damper includes a primary side (32) and a secondary side (46) which is rotatable with respect to the primary side (32) around an axis of rotation (A) against the action of a damper element arrangement (28). At least one damper element unit (42) of the first group (70) and at least one damper element unit (42') of the second group (70') are pre-loaded, and the primary side (32) and the secondary side (46) are pre-loaded in a basic relative rotation position with respect to one another. Proceeding from the basic relative rotation position of the primary side (32) with respect to the secondary side (46), a pre-loading path (V, V') of at least one pre-loaded damper element unit (42) is shorter than a maximum relative rotation path of the primary side (32) with respect to the secondary side (46).




for

Inner seal for CV joint boot

A combined CV joint boot and inner seal includes a boot portion having a first end and a second end and having a shaft sealing portion at the first end for sealing with a first shaft of the CV joint. A front can sealing portion is positioned at the second end of the boot portion. An inner seal portion extends generally inwardly towards the CV joint longitudinal axis to block lubricant from migrating into the interior of the boot portion.




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Drive shaft coupling having sealed interior passage for pressurized fluid

A coupling for connecting a rotating tube cleaning shaft to a tube cleaning machine where high pressure fluid is pumped through the coupling, where the coupling is sealed to contain the high pressure fluid, and where a machine driven rotary flexible shaft passes through the coupling.




for

Lock-up device for fluid coupling

A lock-up device for a fluid coupling suppresses vibration caused by coil springs. The lock-up device includes an input rotation member, an output rotation member, a plurality of first elastic members, and a float member. The plurality of first elastic members are compressed in a rotational direction by the relative rotation of the input rotation member and the output rotation member. The float member is rotatable relative to the input rotation member to cause two of the first elastic members to act in series in a circumferential direction.




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Device for generating limit torque with function of yielding torque change in real time

A device for generating limit torque with a function of yielding a torque change in real time includes a spring, a rotating portion having a cam surface formed therein, a transmitting portion transmitting an elastic force of the spring to the cam surface, a fixed portion with respect to which the relative rotation of the rotating portion is generated, and a limit-torque control portion provided to the fixed portion so as to control limit torque of the rotating portion by adjusting the elastic force of the spring. In the device, the limit-torque control portion controls the limit torque of the spring by changing the elastic force of the spring in real time.




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Valve timing control device for internal combustion engine

A valve timing control device includes: a vane rotor having a plurality of vanes; a housing having the vane rotor inside so that an advance chamber is formed on one side of each vane and a retard chamber is formed on the other side; a lock pin inserted in a cylinder provided in the vane and moves to a lock position and to an unlock position; and a feeding passage for feeding oil into the cylinder from the retard chamber adjacent to the vane provided with the cylinder to make the lock pin move to the unlock position, and controls an oil supplying unit to supply oil to each retard chamber, wherein a flow passage cross sectional area of the branch passage connected with the retard chamber linking with the cylinder is larger than a flow passage cross sectional area of the branch passage connected with the other retard chamber.




for

Shaft for transmitting torques

A shaft for transmitting torques includes a hollow shaft made of fiber-reinforced plastic. A flange which can be used to connect the hollow shaft to a driving or driven machine part is fastened at least to one end of the hollow shaft. The flange is fastened to the hollow shaft via a number of screw connections. Each screw connection includes a screw and a nut. The shank of the screw projects in the direction of the hollow shaft through an opening in the flange that is arranged in the connection region between the end edge of the hollow shaft and the flange. The shank extends at least partially inside the shell of the hollow shaft and engages with the nut arranged on the hollow shaft. The head of the screw is supported on that side of the flange opposed to the hollow shaft.




for

Phase varying apparatus for automobile engine

A phase varying apparatus capable of smoothly varying the phase angle of a camshaft relative to a drive rotor by comprising: a drive rotor supported by a camshaft and driven by a crankshaft; a first control rotor integral with the camshaft; a first torquing mechanism for providing the first drive rotor with a torque in one direction, and a reverse rotation mechanism for proving the first control rotor with a torque in the opposite direction, wherein the reverse rotation mechanism comprises a first radius-decreasing guide groove formed in the control rotor, a crank member adapted to rotate about a position offset from the rotational axis of the drive rotor, and a first pin mechanism mounted on the crank member and movable in the radius-decreasing guide groove, and a second operative mechanism for rotating the first control rotor in the opposite rotational direction relative to the drive rotor.




for

Arrangement for transmitting a torque between a shaft and a hub

An arrangement transmits a torque between a shaft and a hub. The hub has at least approximately the interior geometry of an equilateral n-sided polygon, the side surfaces of which at least approximately bear against a clutch portion, which is of circular overall cross section, of the shaft, and wherein the shaft has at least one driver portion which is rotationally conjoint with respect to the clutch portion and which extends in the direction of a corner of the n-sided polygon.




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System, method and apparatus for computing, monitoring, measuring, optimizing and allocating power and energy for a rod pumping system

A system and methods are provided for controlling a motor of a rod pumping system using previous RPMs of the motor and predicting an RPM of the motor; correcting a power factor of a motor of a rod pumping system; allocating energy consumption and allocating energy generation for a set of wells connected to an electricity meter using an amount of energy generated by each well; and generating an alert if a set of data is beyond a threshold for the set of data.




for

Graphical view sidebar for a process control system

A secondary or “sidebar” display within a process control environment may provide several small applications to allow business managers, engineers, maintenance personnel, or other non-operator personnel to organize and manage process control system information and to display selected diagnostics and summary information or “key operating parameters” for the process control system. Further, sidebar applications may communicate with other applications that are executing on a non-operator user's workstation to, thereby, retrieve information related to tasks that the user is currently completing. The sidebar application may then determine whether certain process control information may be useful for the main task the user is completing and display that process control information within the sidebar.




for

Method and weaving machine for shedding

Shed formation on a weaving machine (2), which is driven by a main motor (3), with a shedding device (4), which is driven by a shedding motor (5), wherein in each motion cycle (N) of the weaving machine (2), a loom shed (7) formed by warp threads (8) of the weaving machine (2) is opened and closed dependent on a weave pattern, and wherein the synchronicity of the two motors (3, 5) is controlled by signals (10) of a control device (9). During a partial number (Tn1, Tn2) of motion cycles (N), the synchronicity of the two motors (3, 5) is changed in such a manner so that plural shed closure angles (FSW) at which the loom shed (7) in the respective motion cycles (N) is closed, form an increasing or decreasing sequence.




for

Robotic machining apparatus method and system for turbine buckets

A robotic apparatus for machining tenons on turbine buckets of a steam turbine machine is disclosed. The robotic apparatus includes a machining device having a spindle head. A robotic arm is coupled to the machining device and a base member is coupled to the robotic arm. The base member is mounted independently of the machine element. A vision system is provided for locating the tenon on the turbine bucket. A control system is coupled to the vision system, the machining device and the robotic apparatus. The control system is configured to control movement of the robotic apparatus and the machining device based upon vision system data and spatial information about the tenon and the turbine bucket.




for

Apparatus, and associated method, for generating an information technology incident report

Apparatus, and an associated method, for generating a trouble ticket related to an IT incident. When an IT incident occurs, a worklog is formed by a reporter that enters information associated with the incident. Successive inputs, made by appropriate personnel, are made to update the status of the incident. A table-of-contents is formed, associated with the collection of entries of information. And, each entry of information is categorized, to identify the entry by an associated category.




for

Home network system and method for an autonomous mobile robot to travel shortest path

Provided are a home network system and a method for an autonomous mobile robot to travel along a shortest travel route. The home network system capable of home automation includes a plurality of beacons for sensing a user located in a cell coverage area and for transmitting resulting sensing information of the user; an autonomous mobile robot for executing travel to reach the user based on provided travel route information; and a home server for calculating a travel route along which the autonomous mobile robot can easily reach the user based on the sensing information of the user transmitted from the beacons, and for providing the travel route to the autonomous mobile robot. Therefore, the autonomous mobile robot may reach the user by the shortest travel route and thus reducing energy loss.




for

Vision correction method for tool center point of a robot manipulator

A vision correction method for establishing the position of a tool center point (TCP) for a robot manipulator includes the steps of: defining a preset position of the TCP; defining a preset coordinate system TG with the preset position of the TCP as its origin; capturing a two-dimensional picture of the preset coordinate system TG to establish a visual coordinate system TV; calculating a scaling ratio λ of the vision coordinate system TV relative to the preset coordinate system TG; rotating the TCP relative to axes of the preset coordinate system TG; capturing pictures of the TCP prior to and after rotation; calculating the deviation ΔP between the preset position and actual position of the TCP; correcting the preset position and corresponding coordinate system TG using ΔP, and repeating the rotation through correction steps until ΔP is less than or equal to a maximum allowable deviation of the robot manipulator.




for

Systems and methods for safe robot operation

In various embodiments, safe collaboration between a robot and humans is achieved by operating the robot continuously at or below a first threshold speed at which any collisions with a person's arms do not cause harm, and, upon detection of the person's torso or head within a danger zone around the robot, reducing the speed to or below a second threshold at which any collisions with the person's torso or head do not cause harm.




for

Method and device for actuating a key of a keyboard with a tracer finger of a robot

There is provided a method for actuating a first key of a keyboard with a tracer finger of a robot. An exemplary method comprises acquiring parameters of the keyboard and determining a position of the first key as a function of the acquired parameters using a model of the keyboard. The exemplary method also comprises guiding the tracer finger of the robot to the determined position of the first key. The exemplary method additionally comprises actuating the first key with the tracer finger of the robot.




for

Walking robot and method for controlling posture thereof

A walking robot having joints which move using a torque servo, a posture of the robot being stably controlled, and a method of controlling a posture of the robot. It is possible to maintain a stable angle of the upper body while keeping an erect posture and balance using the COG of the robot and the inclination and the direction of the upper body and the pelvis of the robot, even in an external variation including external force or an inclination angle of the ground. Even in a state in which terrain information is not known in advance, the robot may keep an erect posture in a direction of gravity. Even when a plane where the robot stands is gradually inclined, the postures of the upper body and the legs of the robot may be kept while actively changing the angle of the ankle joint.




for

Low-cost, high-reliability controller for remotely operated robots

Provided is a device for wirelessly controlling robots suitable for competition or educational purposes, the device including: an input module configured to receive commands from a human user interface, the human user interface sending signals indicative of inputs by a user to control a robot; a protocol translator configured to translate the received commands into a protocol to which the robot is responsive; a wireless output module configured to wirelessly transmit the translated commands to the robot such that the robot executes the commands.




for

Verification and control device and method for at least one water purification system

A verification and control method for at least one water purification system is described, which includes a step of supplying, by a server embedded with the water purification system, an editing interface comprising a zone for selecting items of exploitation information representing physical quantities associated with the water purification system, a step of selecting, via the first remote browser, at least one item of exploitation information to constitute at least one exploitation interface page, a step of sending a request to access the exploitation page, by a second remote browser, to the server, a step of collecting the value of each physical quantity represented by a selected item of information to constitute the page, and a step of supplying, by the server, the page comprising each collected value.




for

Energy reducing retrofit method and apparatus for a constant volume HVAC system

An energy-reducing method and apparatus for retrofitting a single zone, constant volume HVAC system, with or without an economizer, that provides heating, cooling, and ventilation to occupants within a building space. The present invention includes the introduction of a programmable logic controller and variable frequency drive (VFD) that takes control of the existing fan, heating, cooling, and optional economizer operation. The reduction of the fan speed in the ventilation mode when the 100% operation is not needed saves significant energy of the existing constant volume HVAC system where the fan motor is designed to run 100% of the time.




for

Modular hangers for product storage and retrieval system

A system for locating goods stored in a storage area includes a computer, radio frequency transceivers and modular hangers. Ordered goods are placed in storage units that each have addresses at a central filling center. The filled storage units are shipped to local storage areas where they are coupled to hook units to form modular hangers and stored on rails. The identifications of the goods and the electronic addresses for corresponding hangers are stored on a local computer database. When a user wants to pick up goods stored in the containers, the user inputs the identification or order information for the goods and the computer will cause the radio frequency transmitter to emit a data packet that includes a search address and illumination data. The hangers compare the search address to the electronic address. If there is a match, the hanger is illuminated so the ordered goods can be found.




for

Method and system for automatic-adjustable stacker

An automatic-adjustable stacker for controlling the movement of a media, such as cardboard, through a media handling system. The stacker includes a media receiver positioned proximate a feed of the media that receives a leading edge of the media and a controller that causes the media receiver to move from a first position for receiving the media, to a second position for depositing of the media at a desired location. The media receiver is configured to prevent the media from coming into contact with other media already located at the desired location until the media has arrived at the desired location, while creating a concave-like shape to the media while conveying it.




for

Information processing apparatus, control method thereof and storage medium

An information processing apparatus for performing recognition processing by a recognizer for a position and orientation of a work subject to undergo work by a working unit of a robot arm. The information processing apparatus including an obtaining unit adapted to obtain, for each of a plurality of positions and orientations of the work subject, a position and an orientation of the working unit in which the working unit can perform the work, and a restriction unit adapted to restrict a position and an orientation of the work subject used in the recognition processing by the recognizer to a position and an orientation of the work subject corresponding to the position and the orientation of the working unit that have been obtained by the obtaining unit.




for

Work hanging apparatus and work hanging method for hanging work on hanger through movement of work under correction

A work hanging apparatus includes a hanger line continuously conveying hangers each having a hook, a robot that has a hand with which a work having a hole is held and transfers the held work to a hanging location set in the hanger line, a controller controlling a movement of the hand to catch the hook of one of the hangers with the hole of the held work at the hanging location, a hole deviation detector that detects a positional deviation of the hole of the work, an attitude deviation detector that detects an attitudinal deviation of the hanger, and a corrector that corrects the movement of the hand according to the positional and attitudinal deviations.




for

Neutral layer polymer composition for directed self assembly and processes thereof

The present invention relates to a novel polymeric composition comprising a novel polymer having two or more repeat units and a terminus having the structure (1): wherein R1 represents a C1-C20 substituted or unsubstituted alkyl group, w is a number from 1-8, X is oxygen (O) or nitrogen (N), and Rd is a reactive group. The invention also relates to a process for forming a pattern using the novel polymeric composition. The invention further relates to a process of making the novel polymer.




for

Process for producing mixed metal rare earth metal halide solutions in organic solvents

The present invention relates to lithium salt-containing rare earth halide solutions in aprotic solvents, processes for production thereof and also use thereof.




for

Alkali earth metal precursors for depositing calcium and strontium containing films

Methods and compositions for the deposition of a film on a substrate. In general, the disclosed compositions and methods utilize a precursor containing calcium or strontium.




for

Methods and compositions for diagnostic and therapeutic targeting of COX-2

The presently disclosed subject matter provides compositions that selectively bind cyclooxygenase-2 and comprise a therapeutic and/or diagnostic moiety. Also provided are methods for using the disclosed compositions for diagnosing (i.e., by imaging) a target cell and/or treating a disorder associated with a cyclooxygenase-2 biological activity.




for

Light absorption anisotropic film, polarizing film, process for producing the polarizing film and display device using the polarizing film

A light absorption anisotropic film, wherein content of a liquid crystalline non-colorable low molecular weight compound is 30% by mass or less; and which is obtained by fixing the alignment of a dichroic dye composition comprising at least one type of azo-based dichroic dye having nematic liquid crystallinity; and shows a diffraction peak derived from a periodic structure in a direction parallel to the alignment axis on measurement of X-ray diffraction. The light absorption anisotropic film is high in dichroism.




for

Cycloalkyl triamine pentacarboxylate as ligands for paramagnetic metal complexes

A cycloalkyl triamine pentacarboxylate compound coordinating to a metal ion to form a high stability metal complex in serum is provided. The metal complex of the present invention can be used as a contrast agent for magnetic resonance imaging (MRI).




for

Pyridine-bis (oxazoline)(“pybox”) moiety as a chelator and sensitizer for lanthanide ion (Ln (III)) Luminescence

This invention relates to novel Ln(III) complexes of pybox, and methods of making the same. The present invention also relates to a method of use of pybox as a chelating moiety and sensitizer for Ln(III) ion luminescence. Derivatives of pybox and methods of making the same are also provided.




for

Reagent system and method for modifying the luminescence of lanthanide(III) macrocyclic complexes

Disclosed is a spectrofluorimetrically detectable luminescent composition consisting essentially of at least one energy transfer acceptor lanthanide(III) complex having an emission spectrum maximum in the range from 300 to 2000 nanometers and a luminescence-enhancing amount of at least one energy transfer donor selected from the group consisting of a fluorophore, a lumiphore, an organic compound, a salt of an organic ion, a metal ion, a metal ion complex, or a combination thereof. Such energy transfer donor enhances the luminescence of at least one energy transfer acceptor lanthanide(III) complex, with the conditions that the emission spectrum of any energy transfer donor differs from that of its energy transfer acceptor lanthanide(III) complex; and such energy transfer donor can be dissolved to form a unitary solution in a solvent having an evaporation rate at least as great as that of water.




for

Process for preparing a polyester

Disclosed is a process for preparing a polyester or copolymer containing ester functionalities. The process can comprise: providing an optionally substituted lactone having a ring size of from 6 to 40 carbon atoms; andsubjecting said lactone to metal mediated ring-opening polymerization using as catalyst a compound according to general formula (I): wherein M can be Al, Cr, Mn and Co;X and X' are independently a heteroatom;Y and Y' can be, independently, selected from O, N, S, P, C, Si, and B;Z can be selected from hydrogen, borohydrides, aluminum hydrides, carbyls, silyls, hydroxide, alkoxides, aryloxides, carboxylates, carbonates, carbamates, amidos, thiolates, phosphides, and halides;L1 and L2 can be independently an organic ligand linking X and Y together and linking X' and Y' together, respectively; andL3 is an optional organic ligand linking Y and Y' together.




for

Tricarbonyl complexes with tridentate chelators for myocardium imaging

Chelators of the formulae (I), (II) and (III) and tricarbonyl complexes of radioisotopes of Tc and Re bound to them, for use in myocardial imaging.




for

Trifunctional reagent for conjugation to a biomolecule

A reagent for conjugation to a biomolecule, wherein the reagent is a single molecule with at least three functional parts and has schematic structure (I): a) wherein a trifunctional cross-linking moiety is coupled to b) an affinity ligand via a linker 1, said affinity ligand being capable of binding with another molecule having affinity for said ligand, to c) an effector agent, optionally via a linker 2, said effector agent exerting its effect on cells, tissues and/or humorous molecules in vivo or ex vivo, and to d) a biomolecule reactive moiety, optionally via a linker 3, said moiety being capable of forming a bond between the reagent and the biomolecule.




for

Bis-azo colorants for use as bluing agents

This invention relates to bis-azo colorants for use as bluing agents, laundry care compositions comprising bis-azo colorants that may serve as bluing agents, processes for making such bluing agents and laundry care compositions and methods of using the same. The bluing agents are generally comprised of at least two components: at least one chromophore component and at least one polymeric component. These bluing agents are advantageous in providing a whitening effect to fabrics, while not building up over time and causing undesirable blue discoloration to the treated fabrics.




for

Azo compounds reducing formation and toxicity of amyloid beta aggregation intermediates

The present invention relates to compounds suitable as modulators of protein misfolding and/or protein aggregation. The compounds are particularly suitable as inhibitors of amyloid aggregate formation and/or modulators of amyloid surface properties, and/or as activators of degradation or reduction of amyloid aggregates.




for

Dark quenchers for donor-acceptor energy transfer

The present invention provides a family of dark quenchers, termed Black Hole Quenchers (“BHQs”), that are efficient quenchers of excited state energy but which are themselves substantially non-fluorescent. Also provided are methods of using the BHQs, probes incorporating the BHQs and methods of using the probes.




for

Azoquinone compound, electrophotographic photoconductor, and image forming apparatus

The present disclosure relates to an azoquinone compound represented by formula (1) below. In formula (1), R1 to R4 are identical or different and each represents a hydrogen atom, a C1 to C6 alkyl group or a C6 to C12 aryl group, and Ar represents a C6 to C12 aryl group.