نتایج جستجو برای: static strain aging

تعداد نتایج: 425742  

Journal: :iran agricultural research 2015
ramin jafar s. m. nassiri

abstract- mechanical damage degrades fruit quality in the chain from production to the consumption. damage is due to static, impact and vibration loads during processes such as harvesting, transportation, sorting and bulk storage. in the present study finite element (fe) models were used to simulate the process of static bruising for apple fruits by contact of the fruit with a hard surface. thr...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه گیلان 1390

به منظور مطالعه اثر محلولپاشی باکتریهای محرک رشد گیاه و متابولیتهای آنها بر عملکرد کمی و کیفی برنج رقم هاشمی، آزمایشی در گلخانه دانشکده علوم کشاورزی، دانشگاه گیلان در قالب طرح بلوک کامل تصادفی در 4 تکرار در سال 1389 به اجرا درآمد. تیمارهای مورد بررسی در این تحقیق شامل سویه های مختلف باکتری محرک رشد و متابولیت های حاصل از آنها بود که عبارت بودند از: بدون محلولپاشی و بدون کود (تیمار شاهد)، بدون م...

B. Ahmadi-Nedushan, H. Rahimi Bondarabadi, S.A. Alavi,

In this article, an efficient methodology is presented to optimize the topology of structural systems under transient loads. Equivalent static loads concept is used to deal with transient loads and to solve an alternate quasi-static optimization problem. The maximum strain energy of the structure under the transient load during the loading interval is used as objective function. The objective f...

Journal: :Journal of the Japan Institute of Metals and Materials 1975

2010
Mikhail V. Blagosklonny

Anisimov et al. reported that lifelong treatment with metformin (an anti-diabetic drug with potentially anti-aging effects) was beneficial for female mice but shortened lifespan in males. Here I discuss why suppression of aging may be unfavorable in young males. Metformin is used for treatment of type II (adult-onset) diabetes. Also, metformin and its analog phenformin prevent cancer and increa...

In order to enhance the catalytic performance of SAPO-34 catalyst for the reaction of methanol to olefins (MTO), ultrasonic and microwave-assisted aging method were employed in static hydrothermal method to synthesize nano-sized SAPO-34. The effects of the application of this method on the chemical composition, morphology, surface area and total acidity of SAPO-34 were characterized by XRD, FE-...

2007
Mario Castrogiovanni Giuseppe Nicosia Rosario Rascunà

This work presents an analysis of the static Aging operator for different evolutionary algorithms: two immunological algorithms (OptIA and Clonalg), a standard genetic algorithm SGA, and Differential Evolution (DE) algorithm. The algorithms were tested against standard benchmarks in both unconstrained and dynamic optimisation problems. This work analyses whether the aging operator improves the ...

2016
Haider Abbas Mark Zwolinski Basel Halak

The growing concern about time-dependent performance variations of CMOS devices due to aging-induced delay degradation has increased with shrinking technology dimensions of the devices . One of the main causes of aging is Negative Bias Temperature Instability (NBTI). Modeling NBTI-induced delay at gate level depends on the real stress activity of gate inputs which are related to the workload ap...

Journal: :Journal of agricultural and food chemistry 2005
Anna Picinelli Lobo Norman Fernández Tascón Roberto Rodríguez Madrera Belén Suárez Valles

The effect of yeast strain and aging time on the chemical composition, analytical, and sensory foam properties of sparkling ciders has been studied. The analytical foam parameters (foamability, HM; Bikerman coefficient, sigma; and foam stability time, T(s)) were significantly influenced by aging and yeast strain. The sensory attributes (initial foam, foam area persistence, bubble size, foam col...

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