نتایج جستجو برای: semi continuous cultivation

تعداد نتایج: 428944  

2018
Alexander Weide Simone Riehl Mohsen Zeidi Nicholas J Conard

The present study investigates the occurrence of wild grasses at Epipalaeolithic and aceramic Neolithic sites in the Near East in order to assess their role in subsistence economies alongside the emergence of cereal cultivation. We use Chogha Golan in the foothills of the central Zagros Mountains (ca. 11.7-9.6 ka cal. BP) as a case study, where the archaeobotanical data suggest the frequent exp...

M.R. Rezaei and B. Rasouli, S.A. Shojaosadati,

In this research the microorganism was initially isolated and selected after evaluation based on COD reduction of cheese whey and biomass production. The selected microorganism was identified as Trichosporon sp. The cultivation conditions of the microorganism were optimized under batch: temperature 30˚C initial pH = 6 aeration speed = 2 ν.ν.m and agitation rate: 800 rpm. Under these conditions,...

2004
Emily N. Taylor Dale F. DeNardo Michael A. Malawy

We used intracoelomically implanted temperature dataloggers to obtain semi continuous body temperature data and establish monthly thermal profiles for free ranging rattlesnakes. We mimicked random and non random point sampling methods by selecting a single daily data point from all values or from restricted times of day to reflect common point sampling constraints. Thermal profiles generated fr...

2015
X. D. Huang Hsiao-Wuen Hon Kai-Fu Lee K. F. Lee

A semi-continuous hidden Markov model based on the multiple vector quantization codebooks is used here for large-vocabulary speaker-independent continuous speech recognition. In the techniques employed here, the semi-continuous output probability density function for each codebook is represented by a combination of the corresponding discrete output probabilities of the hidden Markov model and t...

2009
Claas Fallet Peter Rohe Ezequiel Franco-Lara

Process conditions for the synthesis and subsequent secretion of ectoine and hydroxyectoine were optimized in a cascade of two continuously operated bioreactors. In the first bioreactor the halophile bacterium Chromohalobacter salexigens was grown under continuous hyperosmotic and thermophilic conditions and therefore under constant stress driving the cells to accumulate large amounts of ectoin...

2015
Huilan Zeng Fengxiao Tan Yinghua Shu Yanyan Zhang Yuanjiao Feng Jianwu Wang Ricardo Aroca

The cultivation of genetically modified plants (GMP) has raised concerns regarding the plants' ecological safety. A greenhouse experiment was conducted to assess the impact of five seasons of continuous Bt (Bacillus thuringiensis) maize cultivation on the colonisation and community structure of the non-target organisms arbuscular mycorrhizal fungi (AMF) in the maize roots, bulk soils and rhizos...

2012
Eugene A. Feinberg Pavlo O. Kasyanov Nina V. Zadoianchuk

For an upper semi-continuous set-valued mapping from one topological space to another and for a lower semi-continuous function defined on the product of these spaces, Berge’s theorem states lower semi-continuity of the minimum of this function taken over the image sets. It assumes that the image sets are compact. For Hausdorff topological spaces, this paper extends Berge’s theorem to set-valued...

2003
F. Drewnick J. J. Schwab O. Hogrefe S. Peters L. Husain D. Diamond R. Weber K. L. Demerjian

The development and evaluation of time-resolved (minutes) measurement technologies to characterize the physical and chemical make up of ambient aerosols/particulate matter in the atmosphere are essential to our improved understanding of aerosol process science, source attribution, and population exposure. During the PMTACS-NY summer 2001 campaign in Queens/New York, a wide variety of on-line ae...

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