The d.c. transformer is of relatively simple construction, is easy to control and regulate while the losses and tendency to oscillate are reduced to a minimum. A choke (4) with a semiconductor switching element (5) are connected in series with teh rectifier. This group of components is ...
The development of recent decades most obviously likely to be continued is the tendency for alternative methods of traveling to coexist, and so to offer potential travelers a choice. Within large cities, underground transport is usually an alternative to several ways of traveling on the surface. Ro...
The cathode 61 of the rectifier 59 is connected to the anode 3 of the main discharge device I and the anode 63 of the rectifier is connected to the mercury pool 5. If there is a tendency to oscillate, the rectifier network observes the oscillations. In the apparatus shown in Fig. 4...
forcingshopperstowalkpastothertemptinggoodstoreachthem.MrUsmaniandRonaldoMenezes,alsooftheFloridaInstituteofTechnology,setouttoenhancethistendencytobuymorebyplayingontheherdinstinct.Theideaisthat,ifacertainproductisseentobepopular,shoppersarelikelytochooseittoo.Thechallengeistokeepcustomersinformedaboutwhatothersare...
aThe steam to fuel ratio is the parameter that determines to a great extent the hydrogen production and the coke formation tendency under reforming conditions. 蒸汽到燃料比是到大规模范围确定氢生产和焦炭形成倾向在改革情况之下的参量。 [translate] aAmong these are 35 srecies endemic to China, and ...
Current scientific research suggests that a tendency to abuse alcohol runs in families and that an inherited chemical defect also plays a role. In April 1990 researchers discovered a rare gene, possibly one of several, that may increase susceptibility to alcoholism, suggesting that alcoholism ...
The output signals of the generators deform the edges of the stepping pulses into stepped slopes that suppress the tendency of the motor to oscillate. The advantage of the damping circuit lies in its obviating cumbersome mechanical damping systems and thereby opening up new areas of application ...
Material to be sieved is fed into the higher end of the drum. The drum may be considerably larger than in the parent application, and suitable for feeding by a dredger or front loader. It has no tendency to wobble or oscillate.
In an electricity meter a pivoted pawl engages with a fine toothed ratchet wheel and must be able to oscillate freely, without play, in order to arrest instantly any tendency towards backward movement of the armature disc. The pawl is in the form of a small lever carrying a spindle ...
The tendency of the picker head is to move still farther back and to rebound but this tendency is completely dampened out by the fact that while the spring barrel can move rearwardly with the upper ends of the barrel lever 51 and the picker arm 73, the leather lining of the upper ...