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Topic: Reluctance

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Magnetic pole

Magnetic susceptibility

Magnetic permeability

Inductance

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	Control for variable reluctance motors - Patent 4143308
		A control for a variable reluctance motor according to claim 1, in which the diodes in the free-wheel branches are each polarized to oppose flow of current through the associated main control switch in the direction of normal energization for the associated winding.
		A control for a variable reluctance motor, according to claim 6, in which the charge registering device comprises detection transformers for producing at least one charge registering signal, means for creating a window for eliminating parasitic signals, and a bi-stable trigger circuit for registering the direction of a voltage surge.
		A control for a variable reluctance motor, according to claim 6, in which the variable device for advance preparation for commutation comprises a memory store for registering the duration of the charging of a capacitor in the turn-off circuit, a ramp generator with a variable threshold, and three registers and three subtractors per channel.
	www.freepatentsonline.com /4143308.html (5094 words)

	Reluctance generator/motor cooling - Patent 5703421 (Site not responding. Last check: 2007-10-13)
		The apparatus includes an electrical winding-free reluctance rotor having a plurality of windage controlling and heat dissipating divider or barrier elements (which are also referred-to as thermal elements in the descriptions) disposed at opposite ends and periodically along its axial length to definite a plurality of rotor cooling chamber areas.
		As noted, the switched reluctance generator/motor is also found desirable for use as a two-way energy transducer in an aircraft propulsion jet engine; i.e., for use during starting of the engine and then for use in converting a portion of the engine's mechanical energy output into the aircraft's electrical energy source.
		The electrical windings of the reluctance motor/generator may often be arranged to have the spacers shown at 306 and the cooling fluid escape apertures 308 and 310 located in the stator interpole spaces of the machine.
	www.freepatentsonline.com /5703421.html (7179 words)

	Call Reluctance: The Dark Side of Professional Selling? Southern Business Review - Find Articles (Site not responding. Last check: 2007-10-13)
		The phenomenon of call reluctance, for the purpose of this article, is the experience of an elevated level of apprehension sometimes seemingly overwhelming, that may inhibit the number of calls a person will make, and perhaps, rendering the individual incapable of working at all.
		Professors of courses such as sales and sales management need to be aware of the importance of call reluctance so that they devote appropriate attention to the subject in their classes to prevent students' being caught unaware and perhaps being blind-sided by their own experiences of this phenomenon should they become sales professionals.
		Sales managers need to be tuned in to symptoms of call reluctance so that they recognize and head off its early signs and learn to deal with it in their subordinates as constructively as possible while encouraging and facilitating the subordinates' successes at every level in the shortintermediate-, and long-term.
	www.findarticles.com /p/articles/mi_qa3972/is_200404/ai_n9345879 (810 words)

	How to Overcome Sales Call Reluctance
		This is done at the expense of his prospecting activity, a tendency of sale call reluctance® known as hyper-pro.
		His tendency to shy away from group presentations is the form of call reluctance® known as stage fright.
		When you find low levels here, the telephobia tendency of sales call reluctance® is likely at work and will sabotage even the top professional with the most proven approach.
	www.uperform.com /articles/art-reluctance.htm (1343 words)

	Reluctance, by Robert Frost (1874-1963)
		Reluctance was the last poem to be published in part three which was known as the seasonal cycle, so that the poems carried on through the summer, ending in autumn, which ended with Reluctance (Thompson 398).
		Robert Frost initially wrote Reluctance because he felt that he suffered an irreparable shock, loss, and metamorphosis as a result of what he viewed as Elinor White’s rejection of him when he visited her at St. Lawrence University.
		Reluctance also shows Frost’s love of the cycle of the different seasons which is why he dearly loved
	www.etsu.edu /writing/amlit_s04/anthology/reluctance.htm (669 words)

	Switched Reluctance Motor Drives Information
		The term became popular from the 1980s onwards, through the efforts of the first commercial exploiters of the technology, Switched Reluctance Drives Ltd. The machines are alternatively known as variable reluctance motors, reflecting the origins of the technology being derived from VR stepper motors.
		Even so the first recognisable reluctance machines were built over 150 years ago, most famously by Davidson as a traction drive for an electric locomotive in 1838.
		The operation of the motor where the salient poles tend to align to minimise reluctance in normal operation leads to high normal forces acting on the stator structure.
	www.fleadh.co.uk /srm.htm (1530 words)

	Reluctance Training (Site not responding. Last check: 2007-10-13)
		Reluctance : Accelerated Sales Results, Inc. In developing our training over the years, we realized that one of the biggest needs was to learn how to get in front of decision-makers.
		Also sales reps needed to learn how to reduce the call reluctance, eliminate the fear of rejection, how to get through or work with those gatekeepers and how to get responses from voice and email messages.
		Reluctance : Institute of Counseling and Seminar I am Raghava Reddy Katam, NLP Master Practitioner.
	www.training-classes.com /course_hierarchy/keyword_index/reluctance.html (490 words)

	Delphi Variable Reluctance (VR) Sensors
		The Delphi Variable Reluctance Sensor is an electro-magnetic device that measures engine speed and position, transmission speed, vehicle speed, and wheel speed for anti-lock braking and traction control systems.
		The Delphi Variable Reluctance Sensor consists of a permanent magnet surrounded by a winding of wire and, for application flexibility it can be used in conjunction with a ferrous target that has either notches or teeth.
		The Delphi Variable Reluctance Sensor is available in both over molded and non-over molded discrete designs, in both sealed and unsealed configurations, and with or without a harness.
	www.delphi.com /manufacturers/auto/sensors/chassis/vr (428 words)

	EETimes.com - Partial Reluctance Extraction
		They pointed out that partial reluctance has locality similar to capacitance, and it can be sparsified like the capacitance matrix without losing the passivity of the circuit.
		By inverting the partial inductance matrix to the partial reluctance matrix, it can be found that the partial reluctance matrix has similar sparsity to capacitance matrix, and it is much sparser than the partial inductance matrix.
		Reluctance coupling is local because reluctance is shielded by neighboring conductors, while inductance has no such effect and is mainly a function of distance between wires.
	www.eetimes.com /news/design/showArticle.jhtml?articleID=194000011 (1259 words)

	Overcoming Reluctance Creates Response -- Growth Online
		A woman looking for a new position as an administrative assistant was reluctant to learn a new computer program to increase her skills so that she could get a better job, with better pay.
		The effort by the woman to learn something she was reluctant to learn helped trigger an event that led to immediate (and very closely related) positive life response.
		She has overcome a reluctance, a limiting attitude, and a limiting habit all in one stroke to enable this wonderful response from life.
	www.gurusoftware.com /gurunet/Personal/Topics/Reluctance.htm (1338 words)

	Sales Champions - Sales Call Reluctance®
		Sales Call Reluctance® is more responsible for the failure of talented, motivated, capable salespeople than any other factor.
		Some people don’t like to use the telephone to initiate contact while others are unwilling to call on a CEO of a company in fear of not feeling worthy to sell to them.
		Learned Sales Call Reluctance® is typically the most contagious and can be attributed to several factors; sales training process, sales trainers, or even their titles creating a façade of being a salesperson.
	www.saleschamps.com /sales.html (550 words)

	How to Effectively Reduce Sales Call Reluctance
		Call Reluctance is detrimental to both the salesperson's career and the company.
		Both the salesperson and the company must work on reducing Call Reluctance, because if the problem is left unresolved, it causes frustration and loss of sales and money.
		The salesperson must work on overcoming the fear of failure and rejection, while management must be supportive of the salesperson for the benefit of the company.
	edis.ifas.ufl.edu /SN011 (1018 words)

	Rocky Mountain Technologies is your source for Motor and Drive Technology (SR, PM Brushless, AC Induction Motors and ...
		Rocky Mountain Technologies is the leader in sr, vsr, switched reluctance motor technology and standard and custom built sr, vsr, variable switched reluctance motors, sr drive, sr controls, vsr drive, vsr motor, motor design, custom controls, motor controls, controller design, consulting, motor consulting, srm, drive design, drive simulation.
		We hold patents on the sensorless control of sr variable switched reluctance motors also known as SR motors and controller design for switched reluctance motors.
		The switched reluctance motor is also known as SR motor, SR motors, SRM, VSR motor, vsr motors, is rapidly penetrating the real-life world.
	www.rockymountaintechnologies.com (784 words)

	Magnetic reluctance - Wikipedia, the free encyclopedia
		Magnetic reluctance can be thought of a having an analogous function to resistance in an electrical circuit except that it cannot consume energy.
		The term was coined in May 1888 by Oliver Heaviside.
		Air gaps can be created in the cores of certain transformers to reduce the effects of saturation.
	en.wikipedia.org /wiki/Reluctance (383 words)

	The Wrong Kind of Reluctance: What We Can't Learn from the Air Campaign in Kosovo (Site not responding. Last check: 2007-10-13)
		I shall also consider briefly a kind of “strategic reluctance” evident in the dialogue surrounding Kosovo, that is, a perceived unwillingness to take certain risks or to make strong commitments whether from the political pulpit or on the battle grounds.
		Specifically, I wish to consider how the morality of another form of reluctance, a kind of “principled restraint,” helps frame the discussion of when and how military commitments ought to be carried out.
		Outside parties should be reluctant to intervene (even on behalf of a beleaguered people), for that is to meddle artificially with war's “natural corrective” powers.
	www.usafa.af.mil /jscope/JSCOPE00/Carlson00.html (7248 words)

	Synchronous Reluctance Machines (Site not responding. Last check: 2007-10-13)
		The ideal synchronous reluctance machine is typified by having a rotor whose structure is such that the inductance of the stator windings in the dq0 reference frame [4] varies sinusoidally from a maximum value
		A figure of merit for the synchronous reluctance machine is the ratio of direct inductance to quadrature inductance,
		One is to give the rotor a salient shape such that the quadrature air gap is much larger than the direct air gap, as shown in Fig.
	www-power.eecs.berkeley.edu /heath/papers/fwmotor2/node4.html (441 words)

	Behavioral Sciences Research Press - OFFERINGS - Call Reluctance®
		This is Sales Call Reluctance® and BSRP has the world's largest research database.
		Each year, sales call reluctance single-handedly accounts for over half of all failures in one of the largest professions in the world.
		Sales Call Reluctance®, SPQ*GOLD® and the Fear-Free Prospecting and Self-Promotion Workshop® are registered trademarks of Behavioral Sciences Research Press, Inc., Dallas, Texas USA.
	www.bsrpinc.com /callreluctance/callreluctance.html (295 words)

	Variable Reluctance Laboratory Pressure Transducer
		The DP15 Variable Reluctance Laboratory Pressure Transducer is a general purpose differential pressure transducer that features field replaceable sensing diaphragms so that the full scale may be changed anywhere between +/-0.08 psid and +/-3200 psid.
		The DP15 Variable Reluctance Laboratory Pressure Transducer is the most cost-effective way to make pressure measurements in the laboratory where pressure measurement requirements are constantly changing: the DP15 Variable Reluctance Laboratory Pressure Transducer has 23 different diaphragm ranges available.
		The DP15 Variable Reluctance Laboratory Pressure Transducer will accept liquids and gases on both sides, and is constructed of 410 stainless steel.
	www.cancoppas.com /pressure_validyne_vr_DP15.html (232 words)

	WhoWritesIt - Ways You Can Conquer Call Reluctance (Site not responding. Last check: 2007-10-13)
		Unfortunately, lots of salespeople tend to be reluctant to make important calls to or on their most promising prospects.
		Call reluctance is indicative of an avoidance-type mentality so if you can learn and apply these methods of conquering call reluctance, you could be well on your way to conquering avoidance in the other, divergent areas of your life.
		Remember, call reluctance indicates an avoidance personality, so the implementation of these steps to appropriate situations in other areas of one’s life may prove invaluable in the enrichment of personal relationships, as well as an improvement in your self-image.
	www.whowritesit.com /articles/article.asp?id=266 (793 words)

	Centre for Advanced Electronically Controlled Drives, University of Leicester, UK.
		The switched reluctance drive is a brushless motor with no windings or permanent magnets on the rotor.
		When current flows in one of the stator phase windings a salient pole rotor is pulled into a position of minimum reluctance.
		Professor Charles Pollock has worked on the switched reluctance drive for fifteen years and in that time has earned a reputation for innovative design configurations of motor and power electronic converter.
	www.le.ac.uk /engineering/research/groups/power/caecd/MotorDr_pedrg.htm (432 words)

	Question Reluctance Sabotages Sales
		Question Reluctance is equally prevalent among salespeople, yet its rarely discussed or addressed.
		Classic symptoms of Question Reluctance include avoiding asking a question altogether, waiting until the end of a sales call to finally ask what you truly need to know, framing questions so indirectly that prospects get confused, and failing to ask clarifying follow-up questions to ensure that you and the prospects are 'on the same page'.
		Question reluctance is like having one foot on the brake pedal while the other is on the gas.
	www.highprobsell.com /html/question_reluctance.html (628 words)

	Behavioral Sciences Research Press - Incidence of Sales Call Reluctance (Site not responding. Last check: 2007-10-13)
		SPQ is the world’s only diagnostic instrument specifically designed to detect all twelve forms of call reluctance, a condition that emotionally limits the number of first contacts people in contact-dependent professions can comfortably make.
		BSRP’s 2004 call reluctance research update reconfirms that sales people today need more than traditional sales training- regardless of the method or philosophy used.
		Clientele-building organizations cannot afford to presume that their sales people will be able to prospect on a consistent basis without specialized diagnostic and remedial help.
	www.bsrpinc.com /research/Incidence_of_Sales_Call_Reluctance.htm (504 words)

	Power tools with switched reluctance motor patent invention
		The electrical device is preferably a hand-held power tool, however, any type of electrical device that includes a switched reluctance motor may benefit from any number of aspects of the invention.
		In another independent aspect, the invention provides a self-contained electronics package that plugs into a switched reluctance motor to provide control operation of the switched reluctance motor.
		Additionally, some aspects of the invention may further be applicable for use in electrical devices that utilize other types of motors.
	www.freshpatents.com /Power-tools-with-switched-reluctance-motor-dt20060810ptan20060175913.php (1470 words)

	Sales Call Reluctance (Site not responding. Last check: 2007-10-13)
		This phenomenon was researched in the 1980's by George Dudley and Shannon Goodson and they have described 12 sub-types of sales call reluctance, which they consider the 'social disease of the sales profession'.
		Intricate type of call reluctance characterised by energy being lost due to unexpressed and unresolved guilt and shame associated with being in sales.
		There is obviously not space here to go into the full details of their approach for each sub-type of Sales Call Reluctance.
	www.salesnewz.com /salesnewz-23-20040206SalesCallReluctance.html (564 words)

	CPCU Society: Sales Call Reluctance
		The only clear predictor of success in generating new sales is the number of contacts made with existing clients and new prospects on a consistent basis.
		Call-reluctance is a career-threatening condition that hinders the initiation of prospect contacts.
		We are all subject to some type of call reluctance behavior.
	www.cpcusociety.org /page/42496/index.v3page (288 words)

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