نتایج جستجو برای: including control or without any humic application h1

تعداد نتایج: 5888547  

Journal: :Journal of microbiological methods 2011
A Schriewer A Wehlmann S Wuertz

Quantitative PCR is becoming the method of choice for the detection of pathogenic microorganisms and other targets in the environment. A major obstacle when amplifying DNA is the presence of inhibiting substances like humic acids that decrease the efficiency of PCR. We combined the polymeric adsorbent Supelite™ DAX-8 with a large-volume (10 mL) nucleic acid extraction method to decrease the hum...

Journal: :IEEE Trans. Automat. Contr. 1999
Álvaro Giusto Fernando Paganini

The design of a feedforward compensator for robust H1 or H2 performance under structured uncertainty is considered. For linear time-invariant uncertainty, a convex method based on linear matrix inequalities (LMI’s) across the frequency variable is given. For nonlinear or time-varying perturbations and H1 performance, the design problem is reduced exactly to a state-space LMI, and extensions to ...

2001
Allison Fox Janet Greeley Jim Lemon Gregory Chesher Claire Nabke

This report presents a review of the literature and reports the results of an investigation of the acute and hangover effects of ethanol on driving related skills, a s well as focussing on 'event-related potential' data recorded in a sub-group of subjects participating in the project. An earlier study had noted an impairment of a relatively simple reaction time task 3 hours after a dose of alco...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد 1388

two groups of students were assigned as experimental and control ones, and were given instruction on directed reading-thinking activities and after some treatment, they were post-tested. although the initial pre-test did not show any significant differences, the final post-test result revealed that the cooperative reading comprehension helped the experimental group. the cooperative students’...

2006
Yasuhito Mukai Tatsuhiko Hirano

Currently with the progression of the pollution in water sources, considerable attention has been given to the application of membrane filtration technology using microfiltration or ultrafiltration membranes to the surface water treatment as an alternative to conventional coagulation sedimentation and sand filtration. The microfiltration and ultrafiltration membranes are appropriate for complet...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید چمران اهواز - دانشکده ادبیات و علوم انسانی 1386

the purpose of the present study is to find out whether bilinguals of khuzestan-arab origin or monolinguals of iranian origin code-switch during learning or speaking english and which group is more susceptible to code-switch. to this end, the students of 24 classes from high schools and pre- university centers were screened out, and interviewed and their voices and code-switchings were recorded...

A. Ronaghi J. Yasrebi N. Karimian R. Kazemi

ABSTRACT- In the past few decades, accumulation of heavy metals, such as lead (Pb), in soils has increased as a result of human activities.The environmental hazard associated with soil enrichment in heavy metals is related to their mobility and plant availability. Application of various materials such as humic may influence the amount of Pb taken up by plant. Four levels of each of liquid and s...

2011
Philip J. Guo

There is a huge ecosystem of free software for Linux, but since each Linux distribution (distro) contains a different set of pre-installed shared libraries, filesystem layout conventions, and other environmental state, it is difficult to create and distribute software that works without hassle across all distros. Online forums and mailing lists are filled with discussions of users’ troubles wit...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور مرکز - دانشکده شیمی 1391

dendrimer synthesis strategies now provide virtual control of macromolecular nanostructures as a function of size and surface/interior functionality. these strategies involve the covalent assembly of hierarchical components reactive monomers , branch cells or dendron’s around atomic or molecular cores according to divergent/convergent dendrite branching principles.combinon of two or more dendri...

ژورنال: علوم آب و خاک 2015
سپهر, ابراهیم , پیری, مرضیه ,

Humic substances are the most important organic fractions in soils and have affinity towards trace metals. In order to evaluate the effect of humic acid on zinc (Zn) sorption and desorption by soil,‌ a batch experiment was conducted with two soil samples which were different in clay and calcium carbonate contents. Three levels of humic acid (0,‌ 200, 500 mg/L) and various Zn concentrations (0 t...

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