نتایج جستجو برای: attached mass
تعداد نتایج: 521360 فیلتر نتایج به سال:
In this paper, design and performance analysis of a resonance nanosensor for earthquake low frequency geoacoustic waves detection is proposed. The model comprises of a proof mass suspended to the substrate, and a nanobeam attached to the intersection of the proof mass to the substrate. The nanobeam could be cosidered as a clamped-clamped nanoresonator actuated electrostartically. The induced ac...
Abstract Background: CA125 levels in Meig’s syndrome can increase or be normal which an unusual laboratory condition is. In this paper, we present a case of Meigs’ syndrome associated with increased CA125 level due to ovarian fibroma / thecoma. Case presentation: A 50-year old Iranian woman presented with fever, abdominal pain and distention and in imaging assessment, a 90×109 mm heterogeneou...
condensation of aromatic aldehydes with benzoyl acetone under specified conditions yieldedtwo series of polycarbonyl compounds in which the keto group is attached to olefinic linkage.spectral and analytical data revealed the formation of an unsaturated triketone from pyridine-3-carbaldehyde and unsaturated diketone from furfural, salicylaldehyde and 2-hydroxynaphthaldehyde. analytical, ir, 1h n...
A 51-year-old man was admitted to the emergency department with palpitation and atypical chest pain. He had a history of percutaneous mitral valve commissurotomy 20 years previously. He did not use any drugs. Physical examination was unremarkable except for a loud S1 on auscultation. The surface electrocardiogram (ECG) showed atrial fibrillation rhythm with rapid ventricular response and right ...
background: primary intra cardiac tumors are rare. in this article, we present papillary fibroelastoma of mitral valve chordae. case presentation: a 35-year old man presented with atypical chest pain and palpitation. physical examination and electrocardiogram were normal. transesophageal echocardiography (tee) revealed a mass of 1015 mm attached to chordae of anteromedial papillary muscle of m...
Micro- and nanocantilevers are increasingly employed as mass sensors. Most studies consider the first flexural mode and adsorbed masses that are either discretely attached or homogeneously distributed along the entire length of the cantilever. We derive general expressions that allow for the determination of the total attached mass with any mass distribution along the cantilever length and all ...
Calcified amorphous tumor (CAT) is characterized as a non-neoplastic calcified, cardiac mass. A CAT is sometimes detected adjacent to a mitral annular calcification (MAC), suggesting its association with MAC. A 75-year-old woman with known history of hypertrophic cardiomyopathy was admitted to our hospital because of dyspnea. Echocardiography showed MAC, left atrial enlargement and left ventric...
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