نتایج جستجو برای: انحراف از حد بهینه dop

تعداد نتایج: 704028  

Journal: :Physical review letters 2003
M Legré M Wegmüller N Gisin

We demonstrate a coherent quantum measurement for the determination of the degree of polarization (DOP). This method allows us to measure the DOP in the presence of fast polarization state fluctuations, difficult to achieve with the typically used polarimetric technique. A good precision of the DOP measurements is obtained using eight type II nonlinear crystals assembled for spatial walk-off co...

2012
Zahra Sarabi Morteza Analoui

In this paper we employ a most recent approach to Data Oriented Parsing (DOP), which has named Double-Dop, for Persian sentences. Like other DOP models, Double-Dop parser utilizes syntactic fragments of arbitrary size from a treebank to analyse new sentences, but it extracts a restricted yet representative subset of fragments. It uses only those which are encountered at least twice. The accurac...

2001
Rens Bod Ronald Kaplan

Data-Oriented Parsing (DOP) models of natural language propose that human language processing works with representations of concrete past language experiences rather than with abstract linguistic rules. These models operate by decomposing the given representations into fragments and recomposing those pieces to analyze new utterances. A probability model is used to select from all possible analy...

2016
Bo Ren Longfei Shi Guoyu Wang

The degree of polarization (DoP) can be utilized as a detection statistic in the polarimetric radar to achieve target detection performance improvement. In this paper, a polarimetric radar model is established, which includes reflections from both target and clutter at first. Then, probability density functions (PDFs) of the estimated DoP are expressed in closed form, which is derived from join...

Journal: :The Journal of neuroscience : the official journal of the Society for Neuroscience 2014
Omar S Mabrouk Riccardo Viaro Mattia Volta Ada Ledonne Nicola Mercuri Michele Morari

δ opioid peptide (DOP) receptors are considered a therapeutic target in Parkinson's disease, although the use of DOP agonists may be limited by side effects, including convulsions. To circumvent this issue, we evaluated whether blockade of nociceptin/orphanin FQ (N/OFQ) tone potentiated the antiparkinsonian effects of DOP agonists, thus allowing for reduction of their dosage. Systemic administr...

2010
Meredith J. Ezak Denise M. Ferkey

We previously found that dopamine signaling modulates the sensitivity of wild-type C. elegans to the aversive odorant 1-octanol. C. elegans lacking the CAT-2 tyrosine hydroxylase enzyme, which is required for dopamine biosynthesis, are hypersensitive in their behavioral avoidance of dilute concentrations of octanol. Dopamine can also modulate the context-dependent response of C. elegans lacking...

2016
Carina Rofner Ruben Sommaruga María Teresa Pérez

Although phosphorus limitation is common in freshwaters and bacteria are known to use dissolved organic phosphorus (DOP), little is known about how efficiently DOP compounds are taken up by individual bacterial taxa. Here, we assessed bacterial uptake of three model DOP substrates in two mountain lakes and examined whether DOP uptake followed concentration-dependent patterns. We determined bulk...

2009
Daniel T. Cassidy Chadwick K. Hall Othman Rehioui Laurent Bechou

The degree of polarization (DOP) of luminescence of III-V materials is a sensitive function of the strain in the material. The DOP can be measured with a spatial resolution of roughly 1 μm and an rms noise equivalent to a strain difference of 2H10. The DOP can be measured on cleaved facets, surfaces free of metals, or luminescent layers buried by transparent materials or thin films. Thus maps o...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه ارومیه - دانشکده کشاورزی و منابع طبیعی 1392

به منظور ارزیابی وضعیت تغذیه ای پیاز(allium cepa l.) با استفاده از روش تلفیقی تشخیص و توصیه (dris) و انحراف از درصد بهینه (dop) و مقایسه این دو روش، نمونه های خاک و برگ از 50 مزرعه پیاز در شهرستان های شاهین دژ و میاندوآب جمع آوری و غلظت های عناصر غذایی n، p،k ، ca،mg ،fe ،mn ،zn ، cu و b در آنها اندازه گیری شدند. با توجه به مقدار عملکرد، مزارع به دو گروه، مزارع با عملکرد بالا و پایین تقسیم شدند...

Journal: : 2022

اهداف: پژوهش حاضر، تلاش می‌کند با بررسی عوامل کلیدی روند بهره‌وری سازمانی در پیشایندها و پسایندهای اجرای خط‌مشی مدیریت سرمایه انسانی، پیش‌ران‌های بدیل ارتقاء را از میان آنها مشخص نماید.طراحی/ روش‌شناسی/ رویکرد: این پژوهش، آمیخته نوع پژوهش‌های کاربردی است. جامعه آماری بخش کیفی ۱۴ نفر خبرگان علمی اجرایی به‌منظور انجام مصاحبه؛ کمی ۲۷۰ کل ۹0۹ نفری بر اساس فرمول کوکران برای اعتبارسنجی یافته‌های به‌ص...

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