نتایج جستجو برای: تیوری mie
تعداد نتایج: 3816 فیلتر نتایج به سال:
پلاسمون سطحی نوسانات تجمعی بار در فصل مشترک فلز و دی الکتریک است. حالت های مختلف پلاسمون سطحی، از انتشار آن در سطح فلز تا پلاسمون سطحی جایگزیده در نانوذرات فلزی مورد بررسی قرار گرفت. برانگیختگی پلاسمون سطحی مسئول خواص نوری منحصر به فرد نانوساختارهای فلزی است. در حد تقریب شبه ایستا هنگامی که اندازه نانو ذرات فلزی در مقایسه با طول موج نور فرودی بسیار کوچکتر باشد، از اثرات تاخیری فاز در سطح ذره می...
Introduction: Surgery is the first therapeutic option for esophageal cancer. There is controversy over the selection of the best surgical approach. Regarding this, the present study aimed to compare the minimally invasive and open esophagectomy in terms of their short-term outcomes and preoperative complications. Materials & Methods: This randomized clinical trial was conducted on 61 patients i...
The efficiency of trapping an on-axis spherical particle by use of laser tweezers for a particle size from the Rayleigh limit to the ray optics limit is calculated from generalized Lorenz-Mie light-scattering theory and the localized version of a Gaussian beam that has been truncated and focused by a high-numerical-aperture lens and that possesses spherical aberration as a result of its transmi...
Naturally occurring tertiary rainbows are extraordinarily rare and only a handful of reliable sightings and photographs have been published. Indeed, tertiaries are sometimes assumed to be inherently invisible because of sun glare and strong forward scattering by raindrops. To analyze the natural tertiary's visibility, we use Lorenz-Mie theory, the Debye series, and a modified geometrical optics...
Department of Clinical Pharmacy and Biopharmaceutics, Mie University Graduate School of Medicine (K.I., Y.H., T.I., M.O.), Tsu, Mie 514-8507, Japan Department of Pharmacy, Mie University Hospital (K.I., T.E., Y.M., T.I., M.O.), Tsu, Mie 514-8507, Japan Faculty of Pharmaceutical Sciences, Suzuka University of Medical Science, Suzuka (C.K.), Mie 513-8670, Japan Department of Pulmonary and Critica...
BACKGROUND Minimally invasive esophagectomy (MIE) is increasingly used for the treatment of esophageal cancer. However, the ideal approach of MIE is not yet standardized. We explore the ideal approach of MIE according to the location of the tumor and compare the clinical outcomes between patients with cancer arising in the upper third of the esophagus and those with tumors involving the middle ...
BACKGROUND The advantage of neoadjuvant chemotherapy (NAC) followed by open esophagectomy for treatment of esophageal squamous cell carcinoma has been widely recognized. However, the safety and feasibility of NAC for patients receiving minimally invasive esophagectomy (MIE) remain controversial. The purpose of this study was to evaluate the potential impact of prior neoadjuvant chemotherapy on ...
Minimally invasive esophagectomy (MIE) by thoracoscopy after neoadjuvant therapy results in significant short-term advantages such as a lower incidence of pulmonary infections and a better quality of life (QoL) with the same completeness of resection. After 1 year, a better QoL is still observed for MIE in comparison with the open approach, while having the same survival. Seven issues about imp...
Lorenz-Mie resonances produced by small spheres are analyzed as a function of their size and optical properties (epsi > or < 0, mu > or < 0). New generalized (mu not equal to 1) approximate and compact expressions of the first four Lorenz-Mie coefficients (a1, b1, a2, and b2) are calculated. With these expressions and for small particles with various values of epsi and mu, the extinction cross ...
The video stream captured by an in-line holographic microscope can be analyzed on a frame-by-frame basis to track individual colloidal particles' three-dimensional motions with nanometer resolution. In this work, we compare the performance of two complementary analysis techniques, one based on fitting to the exact Lorenz-Mie theory and the other based on phenomenological interpretation of the s...
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