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Wyszukujesz frazę "Lv, B." wg kryterium: Autor


Wyświetlanie 1-7 z 7
Tytuł:
Research on drum water level control of marine auxiliary boiler based on ADRC
Autorzy:
Gan, H.
Lv, B.
Powiązania:
https://bibliotekanauki.pl/articles/258530.pdf
Data publikacji:
2018
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
ADRC
robustness
adaptability
drum water level
marine auxiliary boiler
Opis:
SThe active disturbance rejection control (ADRC) exhibits strong robustness and adaptability in the presence of strong interference of a large class of uncertain systems. In order to better control the water level of the auxiliary boiler drum, this paper applies the ADRC to improve its control precision, robustness and timeliness. Firstly, the change of drum water level in a large oil tanker auxiliary boiler is analyzed and the dynamic equation is established. After the mathematic changes, the dynamic equation is transformed into a two-order system. Aiming at the characteristics of nonlinear, time-varying and strong disturbance of the boiler water level control system in marine auxiliary boiler, studying the ADRC that includes tracking differentiator (TD), extended state observer (ESO), nonlinear feedback (NLSEF) and disturbance compensation of four parts. The establishment of two kinds of two-order ADRC controller to control the drum level. Through the theoretical analysis and simulation experiment test, and comparing with the cascade control strategy, the experimental results show that the active disturbance rejection controller satisfies the steady state response index of the system, and has good timeliness and accuracy to the control of water level of the drum.
Źródło:
Polish Maritime Research; 2018, S 2; 35-41
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Use of fuzzy fault tree analysis and noisy-OR gate bayesian network for navigational risk assessment in Qingzhou Port
Autorzy:
Zhao, C.
Wu, B.
Yip, T. L.
Lv, J.
Powiązania:
https://bibliotekanauki.pl/articles/2063967.pdf
Data publikacji:
2021
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
risk assessment
Bayesian Network Model
navigational risk
navigational risk assessment
Port of Qingzhou
fuzzy fault tree
noisy-OR gate
navigational accidents
Opis:
Collisions and groundings account for more than 80% among all types of maritime accidents, and risk assessment is an essential step in the formal safety assessment. This paper proposes a method based on fuzzy fault tree analysis and Noisy-OR gate Bayesian network for navigational risk assessment. First, a fault tree model was established with historical data, and the probability of basic events is calculated using fuzzy sets. Then, the Noisy-OR gate is utilized to determine the conditional probability of related nodes and obtain the probability distribution of the consequences in the Bayesian network. Finally, this proposed method is applied to Qinzhou Port. From sensitivity analysis, several predominant influencing factors are identified, including navigational area, ship type and time of the day. The results indicate that the consequence is sensitive to the position where the accidents occurred. Consequently, this paper provides a practical and reasonable method for risk assessment for navigational accidents.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2021, 15, 3; 765--771
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The effects of common and nano-zinc foliar application on the alleviation of salinity stress in Rosmarinus officinalis L.
Autorzy:
Mehrabani, L.V.
Hassanpouraghdam, M.B.
Shamsi-Khotab, T.
Powiązania:
https://bibliotekanauki.pl/articles/11877337.pdf
Data publikacji:
2018
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Opis:
Foliar application of micronutrients (both in common and nano-forms) to meet the nutritional demands of plants and even to overcome the stressful environments has gained great attention of agricultural systems. In our experiments, we tried to use the foliar nano-zinc and common zinc sources under salinity conditions and study their effects on some morpho-physiological traits of rosemary (Rosmarinus officinalis) as factorial experiment based on RCBD design. ANOVA results revealed the interaction effects of salinity and zinc foliar application on elemental content (K+, Na+ and Zn2+), as well as essential oil yield of the plants. Carotenoids were influenced by the salinity levels. Soluble sugars content, flavonoids, H2O2 and MDA contents were influenced by individual levels of salinity and zinc foliar applications. Eventually, nano-zinc foliar spray was able to overcome the mild salinity effects on the plant growth and physiological parameters and it could be administered to the production systems and pioneer plant producers.
Źródło:
Acta Scientiarum Polonorum. Hortorum Cultus; 2018, 17, 6; 65-73
1644-0692
Pojawia się w:
Acta Scientiarum Polonorum. Hortorum Cultus
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Detection of IL-1β, IL-6 and TNF-αin Sprague-Dawely rats’ atrophic thymus induced by lipopolysaccharide
Autorzy:
Zhong, Y.B.
Zhang, X.L.
Lv, M.Y.
Hu, X.F.
Li, Y.
Powiązania:
https://bibliotekanauki.pl/articles/2087664.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
lipopolysaccharide
pro-inflammatory cytokines
thymus atrophy
rat
Źródło:
Polish Journal of Veterinary Sciences; 2018, 21, 3; 589-597
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Emergence and complete genome of Senecavirus A in pigs of Henan Province in China, 2017
Autorzy:
Wang, H.B.
Tian, B.
Lv, H.L.
Wang, F.
Zhang, T.
Wang, C.Y.
Zhang, Y.D.
Dong, J.J.
Powiązania:
https://bibliotekanauki.pl/articles/2087575.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Senecavirus A
vesicular disease
phylogenetic analysis
Źródło:
Polish Journal of Veterinary Sciences; 2019, 1; 187-190
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Role of Ionic Processes in Degradation of Wide-Gap II-VI Semiconductor Materials
Autorzy:
Borkovskaya, L.V.
Dzhymaev, B.R.
Korsunskaya, N.E.
Markevich, I.V.
Singaevsky, A.F.
Sheinkman, M.K.
Powiązania:
https://bibliotekanauki.pl/articles/1858211.pdf
Data publikacji:
1998-08
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
71.55.Jv
78.55.Et
Opis:
A role of mobile defects in processes responsible for II-VI compound semiconductor characteristic instability is under consideration. These defects have been shown to be responsible for electron-enhanced reactions in these materials, in particular, shallow donor creation in CdS crystals. Accumulation of mobile defects near dislocations results in some specific effects: anisotropy of conductivity induced by electric field and distortion of edge emission spectrum shape. These effects side by side with electron-enhanced defect reactions have been found to influence considerably semiconductor device characteristics.
Źródło:
Acta Physica Polonica A; 1998, 94, 2; 255-259
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Extrachromosomal expression of nat05 gene encoding an alkaline serine protease from Bacillus subtilis N05
Autorzy:
Thu, N.T.A.
Chau, N.T.T.
Thien, L.V.
Huy, N.D.
Khue, N.T.M.
Hung, N.B.
Luong, N.N.
Thu, L.T.A.
Loc, N.H.
Powiązania:
https://bibliotekanauki.pl/articles/80935.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
gene encoding
serine protease
Bacillus subtilis
nat05 gene
fibrinolytic activity
alkaline serine protease
sodium dodecyl sulphate-polyacrylamide gel electrophoresis
proteolytic enzyme
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2018, 99, 4
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-7 z 7

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