نتایج جستجو برای: plates
تعداد نتایج: 36099 فیلتر نتایج به سال:
We discuss the use of wave plates with arbitrary retardances, in conjunction with a linear polarizer, to split linearly polarized light into two linearly polarized beams with an arbitrary splitting fraction. We show that for non-ideal wave plates, a much broader range of splitting ratios is typically possible when a pair of wave plates, rather than a single wave plate, is used. We discuss the m...
BACKGROUND Metallic reconstruction plates used for fracture stabilization typically require intraoperative contouring for patient-specific anatomical fit. Despite this, characterization of plate mechanical properties after contouring has previously been limited. The objective of this study was to assess whether contouring affects fatigue resistance for three types of Stryker seven-hole stainles...
Clinical implementation of site-specific locking plates for acetabular fracture remains untested. Custom-made locking plates were manufactured using computer-aided design and computer-aided manufacture techniques for acetabular fractures to test this procedure. The 3-dimensional images constructed from computed tomography data of pelvises in patients with acetabular fractures were used for preo...
The Casimir stress on two parallel plates in a de Sitter background corresponding to different metric signatures and cosmological constants is calculated for massless scalar fields satisfying Robin boundary conditions on the plates. Our calculation shows that for the parallel plates with false vacuum between and true vacuum outside, the total Casimir pressure leads to an attraction of the plate...
BACKGROUND Current surgical approaches to the distal radius include dorsal and palmar plate fixation. While palmar plates have gained widespread popularity, few reports have provided data on long term clinical outcomes in comparison. This paper reports the result of a randomised clinical study comparing dorsal Pi plates and palmar, angle-stable plates for treatment of comminuted, intraarticular...
Linear birefringence, as implemented in wave plates, is a natural way to control the state of polarization of light. We report on a general method for designing miniature planar wave plates using surface plasmons. The resonant optical device considered here is a single circular aperture surrounded by an elliptical antenna grating. The difference between the short and long axis of each ellipsis ...
A 55-year-old man operated on for tractional retinal detachment secondary to proliferative diabetic retinopathy, receives topical treatment including ciprofloxacin eye-drops and ointment. Lost sight of for a month without stopping treatment, patient returns with a real crystallization of the cornea as central whitish and hard plates corresponding to deposits of fluoroquinolone. The treatment wa...
Red pine leafs were applied for the green method preparation of MgO nano-plates. The MgO nano-plates were used for the one-pot synthesis of dihydropyrano [3,2-c] chromene derivatives. This procedure is very simple and affords excellent yields. MgO nanoplates were synthesized via a simple precipitation method with the using of an extract solution of red pine leaves. The XRD pattern shows a cubic...
?By E. B. Jamieson, M.D. Sections I to V. Section I:? Central Nervous System. (Contains 48 plates.) Section II:?Head and Neck. (Contains 61 plates.) Section III:?Abdomen. (Contains 37 plates.) Section IV:?Pelvis. (Contains 30 plates) and Section V:?Thorax. (Contains 27 plates.) 1934. E. and S. Livingstone, Edinburgh. Obtainable from Messrs. Butterworth and Company (India), Limited, Calcutta. Pr...
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