scholarly journals In Situ Genetic Evaluation of European Larch Across Climatic Regions Using Marker-Based Pedigree Reconstruction

2020 ◽  
Vol 11 ◽  
Author(s):  
Milan Lstibůrek ◽  
Silvio Schueler ◽  
Yousry A. El-Kassaby ◽  
Gary R. Hodge ◽  
Jan Stejskal ◽  
...  
Keyword(s):  
Genetic Evaluation ◽  
Pedigree Reconstruction ◽  
European Larch ◽  
Climatic Regions

Hygrothermal Performance and Degradation of Gypsum Houses in Different Brazilian Climates

2015 ◽  
Vol 3 ◽  
pp. 137-149 ◽  
Author(s):  
R.M.S.F. Almeida ◽  
P. Paula ◽  
A. Santos ◽  
N.M.M. Ramos ◽  
J.M.P.Q. Delgado ◽  
...  
Keyword(s):  
Simulation Software ◽  
International Standards ◽  
Computer Simulation Model ◽  
Water Absorption Coefficient ◽  
Vapour Permeability ◽  
Climatic Regions ◽  
Hygrothermal Simulation ◽  
Durability Assessment ◽  
And Performance

This work consisted of two main lines of research: one of a literature review and other of simulation. In the first part, a modular constructive system based on gypsum blocks is presented. This constructive system reduces the manpower considerably, the time of execution and the final costs of construction. However, the durability assessment should be analysed but first its implementation and performance along the country must analysed.In this work a preliminary experimental characterization of the thermal conductivity, vapour permeability and water absorption coefficient of two different samples of gypsum plasters from the northeast Brazil (plaster pole of Araripe, Pernambuco) was performed. The experimental and analytical procedures followed either international standards or well-established methodologies, supporting the analysis of gypsum walls hygrothermal behaviour. The measured properties were adopted as inputs to hygrothermal simulation software and the analysis of gypsum based exterior walls was conducted for different climate zones and exposure conditions. The study demonstrates the durability issues that may arise in each location, due to differences in hygrothermal action.The other simulation part included hygrothermal advanced modelling, using the EnergyPlus software. The numerical results carried out allow a discussion over the interior comfort and durability of this modular constructive system. In this paper, the computer simulation model and the results of a parametric analysis of the dwelling performance on the eight climatic regions defined in Brazilian regulations are presented. The model was validated using the in situ measurements of air temperature.

Genetic Evaluation of in situ Conserved and Reintroduced Populations of Wild Rice (Oryza rufipogon: Poaceae) in China

2005 ◽  
Vol 43 (11-12) ◽  
pp. 561-575 ◽  
Author(s):  
Ji Qian ◽  
Tianhua He ◽  
Zhiping Song ◽  
Baorong Lu
Keyword(s):  
Wild Rice ◽  
Genetic Evaluation ◽  
Oryza Rufipogon

scholarly journals Colorful and facile in situ nanosilver coating on sisal/cotton interwoven fabrics mediated from European larch heartwood

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
K. M. Faridul Hasan ◽  
Péter György Horváth ◽  
Zsófia Kóczán ◽  
Miklós Bak ◽  
Tibor Alpár
Keyword(s):  
In Situ Synthesis ◽  
Homogeneous Distribution ◽  
Icp Oes ◽  
European Larch ◽  
Reaction Systems ◽  
Morphological Studies ◽  
Spectroscopy Studies ◽  
Increasing Trends ◽  
Heartwood Extracts

AbstractThis study reports on a novel coloration approach for sisal/cotton interwoven fabric via in situ synthesis of European larch (Larix decidua) heartwood-anchored sustainable nanosilver. The heartwood extracts functioned as the reducing and stabilizing agent in reaction systems. The deposited silver nanoparticles (AgNPs) over the fabric surfaces displayed brilliant coloration effects with improved fastness ratings and color strengths (K/S). The successful depositions of nanosilvers were quantified and increasing trends in K/S values with the increase in silver precursor loading were discovered. The concentrations of AgNPs deposited on fabric surfaces were found to be 16 mg/L, 323 mg/L, and 697 mg/L, which were measured through an iCP OES (atomic absorption spectroscopy) test. The K/S values obtained for different loadings of silver precursors (0.5, 1.5, and 2.5 mM (w/v)) are 2.74, 6.76, and 8.96. Morphological studies of the control and AgNP-treated fabrics also displayed a uniform and homogeneous distribution of AgNPs over the fabric surfaces. FTIR (Fourier transform infrared spectroscopy) studies of the sustainably developed materials further confirms the successful bonding between the fabrics and AgNPs. Furthermore, stability against temperature was also noticed as per TGA (thermogravimetric analysis) and DTG (derivative TG) analysis although there was a slight decline from the control sisal/cotton interwoven fabrics observed. Statistically, regression analysis and ANOVA tests were conducted to understand the significance of increased nanosilver loading on sisal/cotton interwoven fabrics. In summary, the perceived results demonstrated successful coloration and functionalization of sisal/cotton interwoven fabrics through green AgNPs, which could indicate a new milestone for industrial production units.

Ophiostoma olgensis, a new species associated with Larix spp. and Ips subelongatus in northern China

Phytotaxa ◽  
2016 ◽  
Vol 282 (4) ◽  
pp. 282 ◽  
Author(s):  
HUI-MIN WANG ◽  
QUAN LU ◽  
XIAN-JING MENG ◽  
XUE-WEI LIU ◽  
CONY DECOCK ◽  
...  
Keyword(s):  
New Species ◽  
Northern China ◽  
Artificial Substrates ◽  
European Larch ◽  
Single Spore ◽  
Morphological Differences ◽  
Ips Subelongatus ◽  
A New Species ◽  
Larix Gmelini

A new ophiostomatoid species, Ophiostoma olgensis sp. nov., isolated from Larix olgensis and Larix gmelini infested by Ips subelongatus in northern China, is described and illustrated. The fungus produces abundant short-necked perithecia in phloem as well as on artificial substrates. The short-necked perithecia are characteristic of the Ophiostoma minus complex and more specifically, of Ophiostoma kryptum, isolated from European larch. However, O. olgensis can be distinguished from O. kryptum on the basis of combined morphological traits and phylogenetic data from ITS, partial β-tubulin, EF-1α, and actin gene region analyses of single-spore isolates. The most obvious morphological differences between both species are the asexual forms and the conidial morphology. The pathogenicity of O. olgensis and O. kryptum was evaluated in situ on local mature Larix spp. by stem inoculation. All inoculations of O. olgensis and O. kryptum resulted in serious lesions on the inner bark, and thus the new species is considered to be a pathogen on Larix spp. (L. olgensis, L. gmelini, L. principis-rupprechtii and L. kaempferi ).

Rendez vous with Saturn's rings

1984 ◽  
Vol 75 ◽  
pp. 743-759 ◽  
Author(s):  
Kerry T. Nock
Keyword(s):  
Solar Energy ◽  
Electric Propulsion ◽  
Power Source ◽  
Propulsion System ◽  
Low Thrust ◽  
Ring Plane ◽  
The Earth ◽  
Total Impulse ◽  
Saturn's Rings

ABSTRACTA mission to rendezvous with the rings of Saturn is studied with regard to science rationale and instrumentation and engineering feasibility and design. Future detailedin situexploration of the rings of Saturn will require spacecraft systems with enormous propulsive capability. NASA is currently studying the critical technologies for just such a system, called Nuclear Electric Propulsion (NEP). Electric propulsion is the only technology which can effectively provide the required total impulse for this demanding mission. Furthermore, the power source must be nuclear because the solar energy reaching Saturn is only 1% of that at the Earth. An important aspect of this mission is the ability of the low thrust propulsion system to continuously boost the spacecraft above the ring plane as it spirals in toward Saturn, thus enabling scientific measurements of ring particles from only a few kilometers.

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