نتایج جستجو برای: 20000 and 40000 ppm
تعداد نتایج: 16830775 فیلتر نتایج به سال:
With the emergence of software delivery platforms such as Microsoft’s .NET, code compression has become one of the core enabling technologies strongly affecting system performance. In this paper, we present compression mechanisms for executables that explore their syntax and semantics to achieve superior compression rates. The fundament of our compression codec is the generic paradigm of predic...
The PPM data compression scheme has set the performance standard in lossless compression of text throughout the past decade. PPM is a "nite-context statistical modelling technique that can be viewed as blending together several "xed-order context models to predict the next character in the input sequence. This paper gives a brief introduction to PPM, and describes a variant of the algorithm, ca...
Abstract Introduction: Classic pheochromocytoma symptoms include headache, diaphoresis, palpitations and symptomatic pheochromocytomas are on average around 5cm. They respond to preoperative alpha blockade followed by surgery. We present a case of giant 15.9cm with delayed presentation diagnosis complicated atypical nausea, weight loss; preparation included modified high-dose phenoxybenzamine b...
The modifying effects of topical application of the phenolic antioxidant protocatechuic acid (PA) on 12-O-tetradecanoylphorbol-13-acetate (TPA)-induced mouse skin tumor promotion were investigated. Dimethylbenz[a]anthracene-initiated female ICR mice were treated with TPA (1.6 nmol) twice weekly for 20 weeks to promote papilloma formation. Pre-treatment with 16nmol PA 30 min prior to each TPA tr...
The Ouagadougou HDSS, located in five neighborhoods at the northern periphery of the capital of Burkina Faso, was established in 2008. Data on vital events (births, deaths, unions, migration events) are collected during household visits which have taken place every 10 months. The areas were selected to contrast informal neighbourhoods (about 40000 residents) with formal areas (about 40000 resid...
Turbulent heat transfer and hybrid Al2O3-Cu-nanofluid over vertical double forward facing-step is numerically conducted. The k-? standard model based on finite volume method in 2-D are applied to investigate the influences of Reynolds number, step height, fractions thermal performance. In this paper, different heights for three cases forward-facing adopted by five (Al2O3-Cu-water) nanofluid var...
— To attain a wider range of data rates in pulse position modulation (PPM) schemes with constrained pulse durations, the sender can repeat a PPM symbol multiple times, forming a super-symbol. In addition to the slot and symbol synchronization typically required for PPM, the receiver must also properly align the noisy super-symbols. We present a low-complexity approximation of the maximum-likeli...
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