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Tytuł:
Rozkład wymiarów cząstek wybranych emulsji w zależności od zawartości emulgatora
Particle size distribution of selected emulsions depending on emulsifier content
Autorzy:
Zalewska, A.
Grubecki, I.
Michałko, J.
Powiązania:
https://bibliotekanauki.pl/articles/2073298.pdf
Data publikacji:
2017
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
emulsja
rozkład wielkości cząstek
olejek miętowy
olejek eukaliptusowy
emulsion
particle size distribution
mint oil
eucalyptus oil
Opis:
Przeanalizowano wpływ zawartości emulgatora na rozkład wielkości cząstek mieszaniny olejków miętowego i eukaliptusowego oraz witaminy A. Układ dyspersyjny homogenizowano przy stałej liczbie obrotów mieszadła. W badaniach wykorzystano dyfraktometr laserowy HELOS BR. Stwierdzono, że im wyższe było stężenie emulgatora, tym mniejsza była średnica Sautera i średnica objętościowa, a tym samym mieszanina była lepiej zhomogenizowana.
The effect of emulsifier content on particle size distribution in the mixture of mint and eucalyptus oils and vitamin A was studied. The systems were homogenized at a constant stirrer rotational seed. HELOS BR laser diffractometer was used in research. It was proved that the Sauter and volumetric mean diameters, and consequently, the better homogenization of mixture were smaller for the higher emulsifier concentration.
Źródło:
Inżynieria i Aparatura Chemiczna; 2017, 5; 184--185
0368-0827
Pojawia się w:
Inżynieria i Aparatura Chemiczna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The endomycorrhizal fungal species and their effects on the growth and nutrient characteristics of Eucalyptus maidenii seedlings in China
Autorzy:
Wang, X.
Kong, X.
Zhao, Y.
Cao, Y.
Cao, Z.
Powiązania:
https://bibliotekanauki.pl/articles/2077654.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
Eucalyptus maidenii
endomycorrhizal fungi
major species
Opis:
Eucalyptus maidenii plantations are typically fertilized to increase the yields of eucalyptus oil and timber. However, the application of chemical fertilizers is costly and can cause environmental pollution and soil erosion. Mycorrhiza fungi can facilitate the cultivation of optimal seedlings while promoting the growth of trees. To date, investigations into the inoculation of endomycorrhizal fungi to enhance the productivity of E. maidenii in Yunnan, China have not been undertaken. The species/dominant species of endomycorrhizal fungi on E. maidenii in Yunnan were isolated and iden- tified. The effect of endomycorrhizal fungi on E. maidenii was elucidated. The major species of endomycor- rhizal fungi that affect E. maidenii were ascertained. Bulk soil was collected from an E. maidenii plantation, and the species of endomycorrhizal fungi were inves- tigated. The effect of the endomycorrhizal fungi on E. maidenii were analyzed via a single factor experimental design, where the number of spores of endomycorrhizal fungi in the seedling substrate were controlled. The major endomycorrhizal fungi species that affected E. maidenii were ascertained via stepwise regression analysis. Five endomycorrhizal fungal species were isolated from the bulk soil, with the dominant being Glomus ag- gregatum and Glomus mosseae. With higher counts of endomycorrhizal fungal spores in the seedling substrate, the infection rate and intensity of seedlings were observed to increase, as well as the NPK concentrations of the bulk soil. With the increased nitrogen concentration in the bulk soil, the nitrogen concentration of the aerial components of the seedlings also increased. The NPK concentrations in the bulk soil and seedlings, the second order lateral roots, the root activity, and the seedling height were significantly promoted by the presence of endomycorrhizal fungi (the third experimental treatment). The NPK concentrations of the bulk soil and seedlings, as well as the growth indices of seedlings increased through endomycorrhizal fungi inoculation. The major species of the endomycorrhizal fungi on E. maidenii were G. aggregatum, Glomus multicaule, and Claroideoglomus etunicatum.
Źródło:
Dendrobiology; 2020, 83; 68-74
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of tree species, preferences by farmers in Albertine rift, Uganda
Autorzy:
Tumuhe, C.L.
Nyamaizi, S.
Powiązania:
https://bibliotekanauki.pl/articles/2049681.pdf
Data publikacji:
2020
Wydawca:
Fundacja na Rzecz Młodych Naukowców
Tematy:
tree species
tree planting
farmer
preference
Eucalyptus
Pinus
fruit tree
Uganda
tree-species preferences
Albertine rift
Opis:
There have been several efforts to plant trees in Uganda but the rate of tree planting has remained low perhaps due to coercing farmers to plant the tree species against their preference. In this study, the tree species’ preferences of farmers in Albertine rift are presented. Key informant interviews, focus group interviews and semi-structured household survey questionnaires were used. A sample of 218 households was selected randomly to include both tree farmers and non-tree farmers in Kiryanga Sub County. The descriptive summaries and content analysis were used in data analysis. Results indicate that Eucalyptus spp., Pinus spp., and fruit trees were most preferred. Farmers have different tree species’ preferences due to the benefits obtained from them. Provision of these suitable tree species’ seedlings will highly incentivize and enhance tree planting in Uganda.
Źródło:
Environment, Earth and Ecology; 2020, 4, 1; 7-14
2543-9774
2451-4225
Pojawia się w:
Environment, Earth and Ecology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Compositional profiling and molecular docking studies of Eucalyptus polybrachtea essential oil against mucormycosis and aspergillosis
Autorzy:
Sharma, Arun Dev
Kaur, Inderjeet
Chauhan, Amrita
Powiązania:
https://bibliotekanauki.pl/articles/16710066.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
aspergillosis
mucormycosis
eucalyptus oil
herbal drug
Opis:
Essential oil (EO) from Eucalyptus polybrachtea is used as complementary and traditional medicine worldwide. The present study aimed at compositional profiling of EO and molecular docking of EO’s bioactive compound 1,8 cineole against fungal enzymes involved in the riboflavin synthesis pathway, namely riboflavin synthase (RS), riboflavin biosynthesis protein RibD domain-containing protein (RibD), and 3,4-dihydroxy-2-butanone 4-phosphate synthase (DBPS) as apposite sites for drug designing against aspergillosis and mucormycosis, and in vitro confirmation. The compositional profile of EO was completed by GC-FID analysis. For molecular docking, the Patchdock tool was used. The ligand-enzyme 3-D interactions were examined, and ADMET properties (absorption, distribution, metabolism, excretion, and toxicity) were calculated. GC-FID discovered the occurrence of 1,8 cineole as a major component in EO, which was subsequently used for docking analysis. The docking analysis revealed that 1,8 cineole actively bound to RS, RibD, and DBPS fungal enzymes. The results of the docking studies demonstrated that the ligand 1,8 cineole exhibited H-bond and hydrophobic interactions with RS, RibD, and DBPS fungal enzymes. 1,8 cineole obeyed Lpinsky’s rule and exhibited adequate bioactivity. Wet-lab authentication was achieved by using three fungal strains: Aspergillus niger, Aspergillus oryzae, and Mucor sp. Wet lab results indicated that EO was able to inhibit fungal growth.
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2023, 104, 3; 233-245
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Operating systems efficiency in cloud environments
Wydajność systemów operacyjnych w środowiskach chmurowych
Autorzy:
Sawicki, D.
Powiązania:
https://bibliotekanauki.pl/articles/158725.pdf
Data publikacji:
2012
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Elektrotechniki
Tematy:
wirtualizacja
sieci chmurowe
Eucalyptus
Nimbus
virtualization
cloud computing
Opis:
This paper presents performance comparison of operating systems running on different cloud environments. The main focus is to compare the performance of the cloud systems: Eucalyptus, Nimbus and virtual system. The performance, of the encountered at the present time solutions of the cloud and virtual systems, is considerably closer to the operating system installed locally. The results of the carried out tests show that in some areas the system installed locally performs better, but in the high throughput computing the cloud environment points out.
Artykuł prezentuje porównanie wydajności systemów operacyjnych uruchamianych w różnych środowiskach chmurowych. Główny nacisk położony jest na porównanie wydajności systemów chmurowych: Eucalyptus Nimbus wraz z system wirtualnym. Wydajność obecnie dostępnych rozwiązań systemów chmurowych i wirtualizacji jest zbliżona do lokalnie zainstalowanych systemów operacyjnych. Wyniki przeprowadzonych badań wskazują, że w niektórych obszarach lokalnie zainstalowany system działa lepiej, ale w czasie, gdy wymagana jest duża przepustowość, środowisko chmurowe jest wydajniejsze.
Źródło:
Prace Instytutu Elektrotechniki; 2012, 260; 185-197
0032-6216
Pojawia się w:
Prace Instytutu Elektrotechniki
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Estimating forest biomass by remote sensing RADAR data in Brazil
Autorzy:
Santos, J.R.
Gama, F.F.
da Conceicao Bispo, P.
Powiązania:
https://bibliotekanauki.pl/articles/52438.pdf
Data publikacji:
2014
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Technologii Drewna
Tematy:
forest biomass
biomass modelling
forest inventory
tropical forest
remote sensing
eucalyptus tree
stand
RADAR data
Brazil
Źródło:
Drewno. Prace Naukowe. Doniesienia. Komunikaty; 2014, 57, 192
1644-3985
Pojawia się w:
Drewno. Prace Naukowe. Doniesienia. Komunikaty
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of seed priming on improvement of germination of Vicia villosa under allelopathic components of Eucalyptus camaldulensis
Autorzy:
Saberi, Morteza
Tarnian, Farajollah
Powiązania:
https://bibliotekanauki.pl/articles/2199684.pdf
Data publikacji:
2012-08-20
Wydawca:
Instytut Hodowli i Aklimatyzacji Roślin
Tematy:
allelopathy
germination
chemical stimulators
Eucalyptus camaldulensis
Vicia villosa
Opis:
The objective of this study was to evaluate the effectiveness of seed priming in improving seed germination and seedling vigor of Vicia villosa under laboratory conditions. Chemical stimulators included: gibberellic acid (125,250 and 500 ppm), salicylic acid (100,200 and 300 mg/lit) and extract of Eucalyptus camaldulensis (0, 25, 50, 75 and 100 %). This experiment was carried out as factorial experiment based on a randomized completely design, with four replications. The results showed that Eucalyptus camaldulensis extract had inhibitive effect on germination and early seedling growth of Vicia villosa. Early seedling growth of Vicia villosa increased by pretreatment of seeds in chemical stimulators so that the highest effect was observed in gibberellic acid (250 ppm). The chemical stimulators don’t have any effect on germination speed. Interaction effects of allelopathic and pretreatment with chemical stimulators were significance on germination percentage, root, shoot and plant length and seed vigor index.
Źródło:
Plant Breeding and Seed Science; 2012, 66; 99-108
1429-3862
2083-599X
Pojawia się w:
Plant Breeding and Seed Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Allometric models for estimating aboveground biomass in tree sprouts of three dendroenergetic crops
Autorzy:
Ríos-Saucedo, J.C.
Acuña-Carmona, E.
Cancino-Cancino, J.
Corral-Rivas, J.
Rosales-Serna, R.
Valenzuela-Núñez, L.M.
Powiązania:
https://bibliotekanauki.pl/articles/2078210.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
bio-energy
short rotation
Eucalyptus globulus
Eucalyptus denticulata
Acacia dealbata
dummy variables
Opis:
Recurrent problems have been observed for biomass measurement in tree sprouts, mainly due to differences in patterns of biomass distribution and the bias generated by using models for mature trees. The objective of this research was to evaluate models to estimate aboveground biomass in sprouts from two-year-old stumps of Short Rotation Woody Crops (SRWC) used for energetic purposes. The study was conducted in Central Chile (Bío-Bío region) under a complete block design and four replications. Three plant species were included: Eucalyptus globulus, E. denticulata, and Acacia dealbata, established in three population densities (5,000, 10,000 and 15,000 trees per ha). Two groups of nonlinear models were used on three independent variables: root collar diameter (squared mean of two dominant stems), height (mean of two dominant stems) and number of epicormic stems. In the allometric model, the total aboveground biomass and the aboveground biomass by component were explained as the product of the mean square of the root collar diameter, mean height of the two dominant new sprouts and total number of epicormic sprouts as the predictive variable. Values of coefficient of determination (R2 ) ranged from 0.78 to 0.95 and RMSE ranged from 168 to 913 g. The species of E. globulus showed higher RMSE for biomass estimation in the all components except the branch component. The inclusion of dummy variables to identify the differences in each parameter of the models explained the seasonality of the biomass accumulation in tree sprouts at 10, 21, and 31 months of age, improving the model goodness of fit RMSE by 27%. Accurate prediction of sprouts aboveground biomass was obtained by the models only evaluating the two dominant epicormic sprouts in the stump, avoiding the need of individual sprouts evaluation or using destructive methods for biomass measurement.
Źródło:
Dendrobiology; 2021, 85; 19-29
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of drought and re-watering on the metabolomic profile and antioxidant response of eucalyptus plants
Autorzy:
Pinto, G.
Correia, B.
Dias, C.
Silva, S.
Santos, C.
Valledor, L.
Powiązania:
https://bibliotekanauki.pl/articles/80117.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
conference
water stress
plant
metabolomics
drought effect
re-watering
antioxidative response
eucalyptus
Eucalyptus globulus
water deficit
stomatal conductance
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2013, 94, 2
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The structure and properties of eucalyptus fiber/phenolic foam composites under N-β(aminoethyl)-γ-aminopropyl trimethoxy silane pretreatments
Autorzy:
Ma, Y.
Wang, C.
Chu, F.
Powiązania:
https://bibliotekanauki.pl/articles/778793.pdf
Data publikacji:
2017
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
eucalyptus fiber
pheonlic foam
N-β(aminoethyl)-γ-aminopropyl trimethoxy silane
surface modification
composites
Opis:
Eucalyptus fibers were modified with N-β(aminoethyl)-γ-aminopropyl trimethoxy silane to research the fiber surface’s changes and the influence of the treatment on the mechanical properties, flame resistance, thermal conductivity and microstructure of eucalyptus fiber composite phenolic foams (EFCPFs). The results showed that the partial of hemicelluloses, waxes, lignin and impurities from the fiber surface were dissolved and removed. Compared with untreated EFCPFs, the mechanical properties of treated EFCPFs were increased dramatically; The size of cells was smaller and the distribution was more uniform; The thermal conductivities were basically reduced; Especially the ratio of mass loss decreased obviously. However limited oxygen indexs (LOIs) reduced. And the mechanical properties and LOIs of EFCPFs were basically decreased with the increase of eucalyptus fibers. By comprehensive analysis, the results showed that the interfacial compatibility has been significantly improved between eucalyptus fibers and phenolic resin. And the suitable dosage of eucalyptus fibers was about 5%.
Źródło:
Polish Journal of Chemical Technology; 2017, 19, 4; 116-121
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Porownanie metod odkazania nasion eukaliptusa klujacego [Eucalyptus gunnii Hook.] wysiewanych w kulturach in vitro
Autorzy:
Koziara, Z
Powiązania:
https://bibliotekanauki.pl/articles/803325.pdf
Data publikacji:
2002
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:
eukaliptus klujacy
kultury in vitro
nasiona
odkazanie
Eucalyptus gunnii
rosliny ozdobne
Opis:
Przetestowano 4 techniki sterylizacji nasion eukaliptusa kłującego. Dwie z nich powszechnie stosowane, oparte na chloraminie i podchlorynie wapnia, a dwie na podchlorynie sodu zawartym w Domestosie Metody oparte na Domestosie o 35% skracały średni czas kiełkowania nasiona do 0,8 dnia. Przy podchlorynie wapnia oraz chloraminie średni czas kiełkowania nasiona był dłuższy i wynosił odpowiednio 1,2 oraz 1,3 dnia. Obydwa sposoby odkażania z użyciem Domestosu skutecznie ograniczały zakażenia, a przy tym nie hamowały procesu kiełkowania nasion. Pozostałe z użytych środków obniżały siłę kiełkowania do 74% w przypadku chloraminy i aż do 55% w przypadku podchlorynu wapnia.
Application of Domestos (house bleach) solved at 1 : 5 ratio for 30 minutes was found to be most efficient in disinfecting seeds of Eucalyptus gunnii HOOK, planted in in vitro culture. Moreover, it improved the germination, supplying the initial seedlings of very good quality. The methods based on Domestos shortened the average germination time by 35% i.e. to 0.8 day while with calcium hypochlorite and chloraminę the average period of seed germination was 1.2 and 1.3 days, respectively. Two methods of disinfection with the use of Domestos efficiently limited infections without inhibiting the process of seed germination. The remaining treatments decreased the germination capacity by chloraminę to 74% and by calcium hypochlorite to 55%.
Źródło:
Zeszyty Problemowe Postępów Nauk Rolniczych; 2002, 483; 119-124
0084-5477
Pojawia się w:
Zeszyty Problemowe Postępów Nauk Rolniczych
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Antifungal efficiency of three traditional medicinal plants against Trichophyton rubrum
Autorzy:
Kindu, Geta
Mekonen, Mekonen
Ageze, Emebat
Abebaw, Maritu
Workie, Animut
Getnet, Bruktawit
Powiązania:
https://bibliotekanauki.pl/articles/1076672.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Croton macrostachyus
Dermatophytes
Eucalyptus globules
Phytolacca dodecandra
Trichophyton rubrum
Opis:
Cutaneous fungal infection are a wide-spread public health concern affecting millions of people all across the world. Nearly half of the affected will experience multiple episodes of infection requiring numerous rounds of treatment. Trichophyton rubrum was the most common etiological agent of dermatophytes, and it is emerging as an important and significantly prevalent infection in an increasingly aging population and immune-compromised patients. Development of more effective and less toxic anti-fungal agents is required for the treatment of dermatophytosis. The aim of the study was to evaluate the anti-fungal activity of extracts of three plant species used in traditional medicine against Trichophyton rubrum. The ethanol and water extracts of Eucalyptus globules, Croton macrostachyus, and Phytolacca dodecandra leaves were evaluated in vitro for anti-fungal activity against Trichophyton rubrum, using the agar well diffusion technique. The mean inhibition zone of both extracts for E. globulus, C. macrostachyus and P. dodecandra were 19.8, 20 and 16.3 mm, respectively, and mean inhibition zone of the ethanol and water extracts were 23 and 14.4 mm, respectively. Generally, mean inhibition zone of plant extracts did not show statistically significant difference among plants and the mean inhibition zone of plant extracts did show statistically significant difference between extracts (P ≤ 0.05). On the basis of the current findings, Eucalyptus globules and Croton macrostachyus could be good candidates in the search for new antifungal agents from natural products against Trichophyton rubrum. Therefore, further studies are needed to study their toxicology and isolate the bio- active components from these plants.
Źródło:
World News of Natural Sciences; 2019, 25; 15-21
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Seasoning Characteristics and Potential uses of Eucalyptus pilularis, Eucalyptus viminalis and Trichilia dregeana lumber tree species
Autorzy:
Kaba, Gemechu
Desalegn, Getachew
Powiązania:
https://bibliotekanauki.pl/articles/1031739.pdf
Data publikacji:
2020
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Eucalyptus pilularis
Eucalyptus viminalis
Lumber quality
Trichilia dregeana
moisture content
seasoning
seasoning defects
shrinkage characteristics
timber species
Opis:
Technical information on lumber seasoning, moisture content (MC), density, mechanical, workability and chemical characteristics would strongly determine rational utilization of each lumber species. A study was conducted on home-grown two Eucalyptus species (Eucalyptus pilularis and Eucalyptus viminalis) and one indigenous (Trichilia dregeana) timbers with the main objective of determining some characteristics of lumber that will indicate quality and proper utilization. Study species were harvested from Shashemene, Asella and Arjo sites, respectively. The experimental design for seasoning and density was complete randomized design, a factorial experiment. The experiments were conducted using air and kiln seasoning methods. To determine initial moisture content oven drying method was used. The mean initial MC for the three timber species were 48.25%, 56.1% and 65.45%, respectively. The species were classified as very rapid seasoning rate during kiln seasoning. The mean shrinkage values were Tangential (6.31, 4.94 and 4.43%), radial (3.4, 4.02 and 2.10%) volumetric (9.46, 8.6 and 6.37%), when they seasoned from green to 12% MC, respectively. Seasoning defects such as cup, bow, crook, end split, surface and end-checks were observed, though the extent varies with species. The density of E. pilulalris, E. viminalis and T. dregeana at 12% MC was 780, 810 and 530 Kg/m3, respectively. The one-way analysis of variance indicated that there was significant difference (P>0.001) in initial MC, final MC, density values at different MC and shrinkage characteristics. They revealed good lumber characteristics and qualities, comparable with many indigenous and home-grown exotic timber species in density, seasoning rate and shrinkage. The tree species have to be well managed, properly harvested and sawn. Boards have to be properly stacked and seasoned to about 12% MC, with kiln and air seasoning methods that can help to minimize seasoning time, seasoning defects, shrinkage characteristics and increase quality.
Źródło:
World News of Natural Sciences; 2020, 29, 3; 162-178
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Towards autonomic semantic-based management of distributed applications
W kierunku autonomicznego, opierającego się na opisie semantycznym, systemu zarządzania aplikacjami rozproszonymi
Autorzy:
Funika, W.
Kupisz, M.
Koperek, P.
Powiązania:
https://bibliotekanauki.pl/articles/305581.pdf
Data publikacji:
2010
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
autonomiczność
monitorowanie
zarządzanie
ontologia
Eucalyptus
autonomicity
monitoring
management
ontology
Opis:
In this paper we present our approach to the management of distributed systems based on semantic description of available resources. We use ontologies for a semantic description of the monitored system and other aspects of monitoring and management (such as metrics) and introduce a feedback loop on underlying infrastructure. Such an approach allows to automate monitoring and the ease the work of administrator. We introduce concepts behind a novel automatic management system, SAMM, developed within our research. We discuss the core mechanisms used in the system - the estimation of future measurements, approach to knowledge gathering, and the process of decision making. Then we provide some details on the architecture and implementation of SAMM.
Publikacja ta przedstawia nowe podejście do zagadnień monitorowania i zarządzania systemami rozproszonymi, wykorzystujące ontologiczny opis zasobów przez nie udostępnianych. Podejście to wykorzystuje ontologie do opisu semantycznego monitorowanego systemu, a także innych aspektów monitorowania i zarządzania nim (np. dostępne metryki) oraz wprowadza sprzężenie zwrotne na monitorowanej infrastrukturze. Pozwala to na automatyzację procesu monitorowania i zarządzania w celu ułatwienia pracy administratora. Publikacja opisuje także działanie nowatorskiego systemu SAMM, który powstał w wyniku badań. Przedstawione zostały również koncepcje dotyczące estymacji pomiarów, tworzenia baz wiedzy oraz procesu podejmowania decyzji. Artykuł opisuje zarówno architekturę SAMM-a, jak i szczegóły implementacyjne.
Źródło:
Computer Science; 2010, 11; 51-63
1508-2806
2300-7036
Pojawia się w:
Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Eucalyptus citriodora leaf extract as a source of allelochemicals for weed control in pea fields compared with some chemical herbicides
Autorzy:
El-Metwally, M.
El-Rokiek, K.G.
Powiązania:
https://bibliotekanauki.pl/articles/2084629.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
allelopathy
Eucalyptus citriodora
herbicides
leaf extract
Pisum sativum
weeds
Opis:
Two field experiments were established at the Agricultural Experimental Station of the National Research Centre at Nubaria, Beheira Governorate, Egypt to study the herbicidal potential of the leaf extract of Eucalyptus citriodora at 5, 10, 15, 20 and 25% compared to two hand hoeing, unweeded treatments and the chemical herbicides Bentazon + Clethodium, Bentazon + Fluazifop-P-butyl and Butralin on pea plants and associated weeds. The results indicated that two hand hoeing achieved the maximum weed depression as expressed by the dry matter of total weeds. The dry matter of total weeds decreased by 95.08 to 94.77% as compared with unweeded treatment 50 and 70 days after sowing (DAS) followed by Butraline (93.93–94.65%), Bentazon + Clethodium (93.26–94.07%), Bentazon + Fluazifop- -P-butyl (91.82–92.77%) and leaf extract of Eucalyptus at 25% (91.61–91.95%). Furthermore, the reduction in weed development was accompanied by enhanced pea growth and yield. The results revealed that two hand hoeing was the best treatment to increase plant height, shoot dry weight and SPAD value at 50 and 70 DAS. Also, two hand hoeing produced the maximum values of pod length and number of seeds/pod. The results also indicated that Bentazon + Clethodium treatment gave observable values [recorded 72.96% in pod yield (ton ⋅ fed.–1) over that of unweeded control] of number of pod/plant, weight of pod/plant, seed yield/fed and protein percentage. Also, the results revealed great increases in the growth of pea as well as yield due to treatment with E. citriodora dry leaf extract at 25%. [recorded 64.8% in in pod yield (ton ⋅ fed.–1) over that of unweeded control]. So, the results indicated using Bentazon + Clethodium as well as E. citriodora dry leaf extract at 25% to control weeds associated with pea plants. The authors suggested application of E. citriodora dry leaf extract at 25% in controlling weeds associated with pea plants as a safe method that avoids environmental contamination.
Źródło:
Journal of Plant Protection Research; 2019, 59, 3; 392-399
1427-4345
Pojawia się w:
Journal of Plant Protection Research
Dostawca treści:
Biblioteka Nauki
Artykuł
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