The Web Form Controls
... to true by the user if they check the box. The Checked property indicates the Boolean value currently set in the check box. CheckBoxList A multiple-selection check box. You set the list of ... with another control or a constant value. You set the control The Web Form Controls In this section, you'll see a summary of the various Web form controls that you can pick from the Toolbox's ... from the DropDownList when the form is run. ListBox A list of options. You set the list of options using the Items property. The user can select multiple options from the ListBox if the SelectionMode...
Ngày tải lên: 24/10/2013, 08:15
... even mid- sentence, with the latest page of the manuscript still in the typewriter. The other spouse would routinely continue the story where the first had left off. They alternated in this manner ... III When the robot walked into Martin's office that evening, he, or it, went directly to the desk, unscrewed the bulb from the lamp, pressed the switch, and stuck his finger into the socket. There ... based on the Lewis Padgett short story "Mimsy Were the Borogoves" under the title The Last Mimzy. In addi- tion, The Best of Henry Kuttner was republished under the title The Last Mimzy...
Ngày tải lên: 15/02/2014, 00:20
... arise therein, the erce jealousy, the tenderness for o- spring, parental self-devotion, all found their justication and support in the imminent dangers of the young. NOW, where are these ... ‘Suppose the machine altogether T T M some other age had produced its exact duplicate, the ma- chine could not have moved in time. e attachment of the levers—I will show you the method ... which these people were living, I felt that this close resemblance of the sexes was af- ter all what one would expect; for the strength of a man and the soness of a woman, the institution of the...
Ngày tải lên: 21/02/2014, 14:20
The Dueling Machine pot
... between the cliff and the churning sea. He saw no one. He exten- ded the detector's range to maximum, and worked the scanners up the sheer face of the cliff toward the top. There he was! The ... an eye at the chief meditech, hovering at the edge of the little group. The meditech, one of the staff that ran the dueling machine, pointed out, " ;The Prime Minister has passed the examinations. ... the electroencephalographic records of clinical cases of catatonia and run them through the machine& apos;s input unit. The machine immediately rejected them, refused to process them through the amplification...
Ngày tải lên: 15/03/2014, 17:20
The Anime Machine: A Media Theory of Animation
... the relative fixity of the camera. As the subsequent history of animation attests, the analog to the mobile camera of cinema would not be the invisible hand but rather compositing. Much as the ... proposes, the analog to the mobile camera of cinema is the mov- ing hand, because the hand that sketches the characters in series of poses is the source of their movement. Schaffer thus stresses the ... “underdetermination.” 20 Rather than as an apparatus, I propose looking at the animation stand in terms of what Félix Guattari calls the machine or the abstract machine. 21 When Guattari inverts the relation between machine...
Ngày tải lên: 16/03/2014, 11:12
The Influencing Machine: An Introduction potx
... war. See how the Air Loom uses the new “science of gases?” Influencing Machines always incorporate the latest scientific breakthroughs of their eras. It uses “fluid-locking” to freeze the tongues ... back onto the media. But we don’t really get agitated until we encounter the other guys’ media. Those guys are consuming lies. They are getting juiced up. Their media diet is making them stupid. What ... Since the industrial age began, there has been the recurring delusion that an evil machine is controlling our minds. The first known case occurred in England...
Ngày tải lên: 17/03/2014, 16:20
The time machine
... Ask them to imagine that they are going to travel 1,000 years into the future. Ask them to discuss these questions. (a) Are they going to enjoy the experience? Why/why not? (b) What will they ... Morlocks, on the other hand, represent the dehumanisation of the working classes. Unlike the Eloi, they still know how to make things, but they have become brutal predators of the night. In ... 2 Are these sentences about the Morlocks true (T) or false (F)? (a) They move slowly. (b) They have white skin. (c) They live underground. (d) They are lazy. (e) They are blind. (f) They eat...
Ngày tải lên: 20/03/2014, 15:49
the induction machine handbook chuong (1)
... currents in the short-circuited (or closed) windings of the rotor. The interaction between the stator produced field and the rotor induced currents produces torque and thus operates the induction ... discovered the electromagnetic induction law around 1831 and Maxwell formulated the laws of electricity (or Maxwell’s equations) around 1860. The knowledge was ripe for the invention of the induction ... only 2.268 Kg (5 Pds). This is to show that it is the rather torque than the power that determines the electric motor size. In parallel with the development of rotary induction motor, power...
Ngày tải lên: 21/03/2014, 12:13
the induction machine handbook chuong (2)
... conductors on the part of the machine not connected to the grid (the rotor, or the mover in general), - the secondary. If the windings on the secondary (rotor) are closed, a.c. currents occur in the ... phase. In both cases the winding arrangement on the part of the machine the primary–connected to the grid (the stator in general) should produce a traveling field in the machine airgap. This ... it is 25 to 60% of the rated current depending on the machine airgap g to pole pitch τ ratio. The higher the ratio τ/g, the smaller the magnetization current in p.u. The stator and rotor...
Ngày tải lên: 21/03/2014, 12:13
the induction machine handbook chuong (3)
... this combination. The insulation of the coil conductors (turns) is applied before inserting the coils in slots. The coils are vacuum also impregnated outside the machine. The slot insulation ... All these insulation accelerated life tests involve the ageing of insulation test specimens until they fail at temperatures higher than the operating temperature of the respective motor. The ... motor. The logarithms of the accelerated ageing times are then graphed against their reciprocal Kelvin test temperatures (Arhenius graph). The graph is then extrapolated to the planed (reduced)...
Ngày tải lên: 21/03/2014, 12:13
the induction machine handbook chuong (4)
... and the other side in the second layer. They are connected observing the inward (A, B, C) and outward (A’, B’, C’) directions of currents in their sides. Connecting the coils per phase The ... 1, respectively, the mmf waves for the two pole counts travel in the same direction. On the other hand, if 2p 1 = 6K 1 + 2(4) and 2p 2 = 6K 2 + 4(2), the mmf waves for the two pole counts ... ; y sintsinF y costcosFtcosFt,F 2,1e1m2 2,1e1m2e1m1e1r +∈ τ π ⋅γ+θ−ω+ + τ π γ+θ−ω−θ−ω=θ (4.62) The term outside the square brackets in (4.62) is zero if there is no skewing. Consequently the term inside the square brackets is the compensated or the magnetizing mmf...
Ngày tải lên: 21/03/2014, 12:13
the induction machine handbook chuong (5)
... the actual (designed) maximum flattened flux density B gm , at an angle θ = 30°/p 1 , which makes the length of the flux lines in the back core 2/3 of their maximum length. Then finally the ... calculated for the fundamental airgap flux density. This information prepares the ground to define the parameters of the equivalent circuit of the induction machine, that is, for the computation ... instead of a (the shaft radius), the first domain starts at a′=a/2 to account for the shaft field for the case when the rotor laminations are placed directly on the shaft. Further, each domain...
Ngày tải lên: 21/03/2014, 12:13
the induction machine handbook chuong (6)
... rotor phases. In reality the flux in the rotor varies at Sf 1 frequency, while in the stator at f 1 frequency. The amplitude is the same and, with respect to each other, they are at stall. ... The airgap flux does not reach the other slotted structure (Figure 6.10a) while the zig-zag flux “snakes” out through the teeth around slot openings. In general, they may be treated together ... H102637.01711.0105415.1LKL 32 m1dsds −− ⋅=⋅⋅== (6.15) As seen from (6.13), due to the rather large q, the value of K ds is rather small, but, as the number of rotor slots/pole pair is small, the attenuation factor ∆ d is large. ...
Ngày tải lên: 21/03/2014, 12:13
the induction machine handbook chuong (7)
... essence, if the voltage increases above the rated value, the core losses p iron in the machine increase notably as ( ) 2 2 1e1hiron VfCfCp +≈ (7.148) In the same time, with the core notably ... occurs, and the motor may remain “hanged” around half ideal no- load speed. The larger the stator resistance R s , the larger the backward torque component is. Consequently, the saddle in the torque-speed ... torque), the value of P elm is zero, so the machine driven at that speed absorbs power in the stator to cover the winding and core loss. • Motor no-load mode is when there is no-load torque at the...
Ngày tải lên: 21/03/2014, 12:13
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