نتایج جستجو برای: buttresses wall
تعداد نتایج: 169351 فیلتر نتایج به سال:
در این پایان نامه خواص و جنبه های مختلف کربن معرفی و مروری کلی بر روشهای ساخت ، ساختار و خواص انواع مختلف کربن از کربنهای bulk(شامل گرافیت ، گرافیت turbostratic، الیاف کربن، دوده هاو ... ) تا کربنهای نانومقیاس (شامل fullerenes ، کپسولهای نانومقیاس ، کربنهای nanotube و ... ) ارائه می شود. عمده کار متوجه کربنهای nanotube(اعم از multi-wall و single-wall ) است و ساختار ، عیوب شبکه ای و روشهای ساخت ...
IMPORTANCE Conventional plating systems use titanium plates for fixation of fractures, with benefits of strength and biocompatibility. However, titanium plates require that screws be placed at a 90° angle to the pilot holes. In the midface, this becomes extremely difficult. Today, a variety of craniomaxillofacial osteosynthesis systems are available, including resorbable plating systems. Specif...
•We present the first description of a nest of the Ocellated Antbird (Phaenostictus mcleannani), an understory species that ranges from southeastern Honduras to northwestern Ecuador The opencup nest was found in June 2002, in the Republic of Panama, and was located on the leaf litter between the buttresses of a Virola surinamensis tree. The nest contained two ovoid, whitish eggs with reddish-br...
A long-standing conjecture is that winner-take-all games such as patent races lead to the survival of risk-takers and the extinction of risk-averters. In many species a winner-take-all game determines the males' right to reproduce, and the same argument suggests that males will evolve to be risk-takers. Psychological and sociological evidence buttresses the argument that males are more risk-tak...
We describe a new species of gekkonid lizard on the basis of 21 recently acquired specimens from Babuyan Claro Island, Babuyan Islands group, northern Philippines. The new species differs from other Philippine Gekko by characteristics of external morphology, color pattern, and body size. The new species has been found low on trunks and buttresses of mature closed-canopy climax forest trees at l...
Artificial intelligence through machine learning is increasingly used in the digital society. Solutions based on bring both great opportunities, thus coined “Software 2.0,” but also challenges for engineering community to tackle. Due experimental approach by data scientists when developing models, agility an essential characteristic. In this keynote address, we discuss two contemporary developm...
Historically, we have made assumptions. If a screening test for cancer decreases death from the target disease, and there is no obvious signal that any other type of death is increased, we have assumed that overall mortality (OM) is improved. In other words, the heuristic goes, if the trial’s power were larger, we would see this benefit. This reasoning buttresses nearly all widely used screenin...
PURPOSE An adequate transverse maxillary dimension is one of the critical aspects of a functional and stable occlusion. Surgically assisted rapid palatal expansion consists of a surgical liberation of the sites of resistance combined using orthopedic forces. Most technical descriptions advocate the use of general anesthesia with hospital admission. MATERIALS AND METHODS Between March 2000 and...
BACKGROUND Orthodontic palatal expansion appliances have been widely used with satisfactory and, most often, predictable clinical results. Recently, clinicians have successfully utilized micro-implants with palatal expander designs to work as anchors to the palate to achieve more efficient skeletal expansion and to decrease undesired dental effects. The purpose of the study was to use finite el...
PURPOSE In this study, we introduced a novel technique, the pancreaticojejunostomy (PJ), which uses only two transpancreatic sutures with buttresses (PJt), and compared the surgical outcomes with previously used methods, especially for hard pancreases. METHODS A total of 101 patients who underwent pancreaticoduodenectomy with hard pancreases were enrolled and divided into 3 groups according t...
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