Effects of environmental parameters on net photosynthesis of a free-living brown seaweed,Cystoseira barbata formarepens: determination of optimal photosynthetic culture conditions

The purpose of our work has been to determine the indicator of complex adaptability — the United Quality Latent Index of Adaptability (UQLIA) for the experimental populations of Deschampsia antarctica É. Desv. and study the contribution to it of some environmental factors such as the near soil surface temperature and organogens content. Materials and methods. The determination of UQLIA was based on a pairwise comparison of the differences between investigated parameters of populations by mathematical regression techniques. The soil surface temperature was measured by loggers installed near plants in each locus during April 2017 – April 2018. Results and conclusions. Temperature fluctuations were described during December 2017 – February 2018 for twelve experimental populations of D. antarctica and one control fragment of moss turf subformation from Galindez Island. Significant variations in average daily near surface temperature were observed during the study period between populations, especially in December and January. The UQLIA of D. antarctica for this season was calculated on the basis of the projective cover, biometric indices of generative plants and the content of protective and reserve proteins in seeds for the eleven populations. The values of the United Soil Surface Temperature Influence Index (UTII) for the season summer months and the United Organogens Content in Soil Influence Index (UOCSII) have been calculated for the individual parameters of D. antarctica plants adaptability. The reliable contribution of UTII to ULIA has been shown for December and January, at the moment of the greatest variation of soil surface temperature. UOCSII provided a reliable contribution to the ULIA only in the amount of UTII. Keywords: Deschampsia antarctica, United Quality Latent Index of Adaptability (UQLIA), contribution of soil surface temperature and organogens content to complex adaptability.

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Determination of peptidase production potential of Bacillus strains isolated from ropey bread and optimisation of some culture conditions for peptidase production

ANADOLU UNIVERSITY JOURNAL OF SCIENCE AND TECHNOLOGY –C Life Sciences and Biotechnology ◽

10.18036/aubtdc.348383 ◽

2018 ◽

Author(s):

Muharrem CERTEL ◽

Fundagül EREM

Keyword(s):

Culture Conditions ◽

Production Potential ◽

Bacillus Strains

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A STUDY OF DIFFERENTIAL THERMAL ANALYSIS (DTA) – EFFLUENT GAS ANALYSIS (EGA) FOR THE DETERMINATION OF PLANETARY ENVIRONMENTAL PARAMETERS

Thermal Analysis ◽

10.1016/b978-0-12-395734-4.50053-9 ◽

1969 ◽

pp. 1387-1410

Author(s):

Edgar M. Bollin

Keyword(s):

Thermal Analysis ◽

Differential Thermal Analysis ◽

Environmental Parameters ◽

Gas Analysis

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The impact of exploitation and environmental factors on the degradation of steel road safety equipment

MATEC Web of Conferences ◽

10.1051/matecconf/201823101012 ◽

2018 ◽

Vol 231 ◽

pp. 01012

Author(s):

Joanna Kobus ◽

Lech Kwiatkowski ◽

Rafał Lutze

Keyword(s):

Road Safety ◽

Zinc Coating ◽

Low Carbon Steel ◽

Environmental Parameters ◽

Galvanized Steel ◽

Traffic Intensity ◽

Low Carbon ◽

Zinc Corrosion ◽

The Impact

The work is aimed at determining the corrosivity of atmosphere in the vicinity of roads, taking into account the characteristics of local emission sources, including traffic intensity of vehicles along with climatic and exploitation factors. Determination of the corrosivity of atmosphere was carried out according to the procedures described in PN EN ISO standards. Samples for testing were made of low carbon steel DC05, zinc and hot dip galvanized steel. Samples were assembled at 19 sites in the close vicinity of roads and highways near the measurement points of vehicle traffic intensity. The mass loss of exposed samples was the basis for determination the atmosphere corrosivity at each of 19 test sites. Regarding steel, the corrosivity category of C4 was observed at 8/19 sites. Corrosion losses outside roads are 2-4 times lower and ranged within the categories of C2 and C3. Zinc corrosion losses classified to category C4 occurred at 2/19 stations. In the remaining ones they corresponded to category C3. In areas outside of roads, zinc corrosion losses are about 20-100% lower (C2). The first attempts to model the dependence of operating and environmental parameters on zinc and zinc coating corrosion losses indicate significant correlation between zinc and zinc coating corrosion losses as a function.

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A method for the design of 3D scaffolds for high-density cell attachment and determination of optimum perfusion culture conditions

Journal of Biomechanics ◽

10.1016/j.jbiomech.2008.02.025 ◽

2008 ◽

Vol 41 (7) ◽

pp. 1436-1449 ◽

Cited By ~ 34

Author(s):

Christophe Provin ◽

Kiyoshi Takano ◽

Yasuyuki Sakai ◽

Teruo Fujii ◽

Ryo Shirakashi

Keyword(s):

Cell Attachment ◽

Perfusion Culture ◽

Culture Conditions ◽

High Density ◽

3D Scaffolds ◽

High Density Cell

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Diagnosis of the Operation of Power Plants

ASME 2007 Power Conference ◽

10.1115/power2007-22032 ◽

2007 ◽

Author(s):

Jose´ Miguel Gonza´lez-Santalo´ ◽

Abigail Gonza´lez-Di´az ◽

Carlos Alberto Marin˜o-Lo´pez

Keyword(s):

Power Plants ◽

Environmental Changes ◽

Environmental Parameters ◽

Combined Cycle ◽

Characteristic Parameters ◽

Operating Variables ◽

Design Values ◽

The Individual ◽

The Impact

A system was developed to diagnose the operation of combined cycle power plants and to determine, when deviations are found, which components are causing the deviations and the impact of each component deviation. The system works by comparing the values of the actual operating variables with some reference values that are calculated by a model that was adjusted to the design heat balances. The model can use the actual values of the environmental parameters as well as the design values, so the effect of environmental changes can be quantified and separated. The determination of the individual equipment impacts is done by adjusting the equipment parameters in order to reproduce the values of the measured variables. The adjustment is done by varying the values of the characteristic parameters of the equipment in order to minimize the sum of the squares of the differences between the values of the measured variables and the calculated values from the model.

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Genetic Determination of Partial Migration in the European Robin (Erithacus rubecula)

The Auk ◽

10.1093/auk/100.3.601 ◽

1983 ◽

Vol 100 (3) ◽

pp. 601-606 ◽

Cited By ~ 66

Author(s):

Herbert Biebach

Keyword(s):

Field Population ◽

Migratory Behavior ◽

Migratory Restlessness ◽

Erithacus Rubecula ◽

Breeding Area ◽

Free Living ◽

Experimental Conditions ◽

Genetic Determination ◽

European Robin

Abstract Partially migratory behavior, the occurrence of resident and migratory individuals in a population, has been reported in free-living birds. I examined this behavior in the European Robin (Erithacus rubecula) under controlled experimental conditions. In an offspring group from a partially migratory field population, 36 (78%) individuals exhibited migratory restlessness (migrants), whereas 10 did not (residents). There were more migrants (89%) in an offspring group from exclusively migratory parents and fewer migrants (53%) from an offspring group from mostly resident parents than there were in the field population. A heritability value of 0.52 was found under the experimental conditions. A connection between the genetic determination of migratory behavior and unpredictable winter weather in the breeding area is discussed.

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