نتایج جستجو برای: fill ratio
تعداد نتایج: 529124 فیلتر نتایج به سال:
BACKGROUND A child's sleep pattern is important in defining his or her mental and physical well-being. Although we have reported previously on the utility of collecting 2 weeks of daily sleep logs, this type of record keeping is often onerous for the parents. Therefore, we established a new questionnaire, called the Japan Children's Study Sleep Questionnaire (JCSSQ), which is used to collect sl...
: A process chain for a magnetoelectric device based on porous InP will be presented using only chemical, electrochemical, photoelectrochemical, photochemical treatments and the galvanic deposition of metals in high-aspect-ratio structures. All relevant process steps starting with the formation of a self-ordered array of current-line oriented pores followed by the membrane fabrication and a pos...
Diamond tilms were deposited with an r.f. plasma operating at atmospheric pressure. The gas composition above the growth surface was measured with a gas ch~-omatograph. Experiments were conducted over a range of methane flow rates and sut'strate t,,'r~peratt~res. Films were characterized by SEM and X-ray diffraction texture analysis. Increases in either input methane-hydrogen ratio or substrate...
A laboratory evaluation of bulk-fill versus traditional multi-increment-fill resin-based composites.
Some concerns exist, however, regarding bulk-fill composites. One proposed rationale for limiting composite increments to 2 mm is to allow the curing light to penetrate to the resin farthest away from the light source.1,2 A second reason for using 2-mm increments is to minimize the shrinkage and shrinkageinduced stress associated with composite polymerization. Contraction stresses that exceed t...
Sonication technology has recently been touted to decrease composite viscosity during delivery and may allow better cavity preparation adaptation and minimize voids. The purpose of this investigation was to evaluate the difference between conventional, hand-placed, incremental application of a standard hybrid resin-based composite (RBC) and sonicated application of a bulk-fill RBC in box-type a...
Two experiments were conducted to determine the influence of dietary roughage concentration and feed intake on finishing steer performance and ruminal metabolism. In Exp. 1, 126 steers (334 kg) were used in a completely randomized design and fed (120 d) diets of steam-rolled wheat without roughage or containing 5, 10 or 15% roughage (50% alfalfa hay:50% corn silage). Steers fed 5 or 10% roughag...
Introduction and aim: Bulk Fill composites have increased polymerization depth and their contraction stress, and cuspal deflection are reduced in comparison with conventional composites. Therefore, it is claimed that their microleakage is reduced. The aim of this study was to compare microleakage of (flowable and packable) Bulk Fill and conventional resin composites. Materials and Methods: Thi...
In his seminal dissertation, Henson (1996) identified a number of constraints on theories of serial order memory. Two constraints, the fill-in constraint, in which an item that is erroneously recalled early is likely to be followed by its predecessor rather than its successor (recall of ACB is more likely than ACD), and the protrusion constraint, in which prior list intrusions are likely to be ...
We report a device to fill an array of small chemical reaction chambers (microreactors) with reagent and then seal them using pressurized viscous liquid acting through a flexible membrane. The device enables multiple, independent chemical reactions involving free floating intermediate molecules without interference from neighboring reactions or external environments. The device is validated by ...
A multiple deposition and etching process has been developed to enable high fill factor boron deposition in high aspect ratio holes fabricated in a (100) silicon substrate. The boron deposition was carried out using low-pressure chemical vapor deposition and the etching was done by inductively coupled plasma reactive ion etching technique. The boron deposition processes were carried out under d...
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