Wyniki wyszukiwania - Biblioteka Nauki

1

Uneven Integration and Blocked Spillovers: Why Environmental Governance in Northeast Asia does not Converged to the EU Model?

100%

Dong L.

Problemy Ekorozwoju

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2015

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tom Vol. 10, nr 1

15--20

EN

The EU environmental governance is recognized as an effective path to the management of regional environment. This model is based on rules, directives, top-bottom coordination and also in the characteristics of multi-level governance, which has become an example for various regions to imitate in the world. By contrast, environmental governance in Northeast Asia, equally with a strong demand in dynamic cooperation, failed to deal with the increasing environmental problems and it also doesn't converge to the EU environmental governance over the years. Instead, it established a non-binding cooperation in nature. The Northeast Asia model is a kind of cooperation lack of effectiveness, coordination between regional environmental regimes, without a stable financial arrangement for each cooperative initiative, mainly dominated by the governments, and also lacking of other actors involved in environmental issues. This model is caused by regional security tension which changes the cooperation preference overall, nations especially between China and Japan do not share political trust in high politics. This situation makes regional environmental governance to be a more independent area, with rarely high political interference and without spillover channels to other issues. Theoretically speaking, the Northeast Asia cooperation in environment is based on inter-governmental arrangements, thus, Neo-Functionalism’s spillover effects were significantly inhibited. That means to enhance environmental governance in Northeast Asia will mainly rely on intergovernmental push in the future.

PL

Przyjęty w UE system zarządzania środowiskowego jest uznawany za efektywny sposób regionalnego zarządzania. Model ten oparty się na zasadach, dyrektywach i kompleksowej koordynacji, a także charakterystyce zarządzania wielopoziomowego, stał się wzorem dla różnych regionów świata. Jednak Azja Północno-Wschodnia, z silnym popytem charakterystycznym dla form dynamicznej współpracy, nie radzi sobie z coraz większymi problemami z zakresu ochrony środowiska i jest odległa od standardów UE. Funkcjonujące tu formy współpracy nie są wiążące. Model współpracy z Azji Północno-Wschodniej charakteryzuje się brakiem efektywności i kompatybilności pomiędzy poszczególnymi regionalnymi systemami ochrony środowiska, bez zapewnienia stabilnego finansowania dla podejmowanych inicjatyw, zdominowaniem przez rządy i brakiem innych podmiotów zaangażowanych w kwestie ochrony środowiska. Na ten model ma wpływ kryzys bezpieczeństwa, który objawia się w szczególny sposób we wzroście napięcia pomiędzy Chinami a Japonia. Ludzie nie darzą tu zaufaniem świata wielkiej polityki. Ta sytuacja sprawia, że regionalny zarządzania środowiskiem może być bardziej niezależny, stykać się z wielką polityką i bez skutków ubocznych odnoszących się do innych kwestii. Teoretycznie rzecz biorąc, współpraca Azji Północno-Wschodniej w zakresie ochrony środowiska opiera się na uzgodnieniach międzyrządowych, w ten sposób, neo-funkcjonalne skutki uboczne zostają znacząco ograniczone. Oznacza to, że także w przyszłości w celu poprawienia zarządzania środowiskowego w Azji Północno-Wschodniej Azji uzgodnienia międzyrządowe będą kluczowym czynnikiem.

2

Short-Term Wind Power Forecasting with Combined Prediction Based on Chaotic Analysis

51%

Dong L. , Gao S. , Liao X. , Gao Y.

Przegląd Elektrotechniczny

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2012

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tom R. 88, nr 5b

35-39

EN

With the integration of wind energy into electricity grids, it is becoming increasingly important to obtain accurate wind power forecasts. In this paper, models for short-term wind power prediction in large wind farms are discussed. The analysis of modeling with low dimensions nonlinear dynamics indicates that wind power time series have chaotic characteristics and wind power can be predicted in the short-term. The wind power prediction models are built with phase space reconstruction method and the combination model with different embedding dimensions is tested.

PL

Opisano metodę krótkoterminowego prognozowania mocy elektrowni wiatrowych bazującą na chaotycznym charakterze wiatru w krótkich odstępach czasu.

3

Research on rub-impact loads response of ship shafting

51%

Dong L. , Shi Y. , Wang S.

Polish Maritime Research

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2018

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tom 25

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nr Special Issue S2

EN

The anti-impact ability of shafting affects stability and security of the ship power transmission directly. Moreover, it also cannot be ignored that the rub-impact loads have influence on the torsion vibration of ship shafting. In order to solve the problem of engineering application of reliability assessment under rub-impact loads, a test rig with rubbing generator is established. By carrying out the integrative analysis, the torsional vibration characteristics, such as vibration amplitude and orbit of axle center under the rub impact load are studied. According to the rub-impact conditions obtained through numerical simulation, the experimental verification is carried out on the test rig with rubbing generator. The results show that it is not obvious the influence of rub-impact loads upon the shafting torsion vibration except in special working conditions, that can be simulated by the rubbing generator. The maximum amplitude of torsional vibration is influenced by the radial rigidity as well as the friction coefficient of rubbing body, and the degree of influence is difference under conditions of continuous rubbing and serious rubbing. By adjusting the rigidity of stern bearing, the influence of rub-impact upon shafting can be weaken, which provides a theoretical reference for the safety evaluation of ship shafting

4

Study on the design of container highway and railway automatic transfer vehicle in ocean port

51%

Dong L. , Liu G. , Ye X. , Wang W.

Polish Maritime Research

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2018

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tom 25

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nr Special Issue S3

EN

To realize “seamless” connection of ocean port container multimodal transport, efficiently carry out “door-to-door” transport of ocean port containers and overcome the shortcomings of existing highway and railway vehicles, this study takes the standard for heavy-duty container vehicles in TB1335-1996 Railway Vehicle Strength Design and Test Identification Code as the design basis and designs a new ocean port container transport vehicle in combination with automatic guidance technology. This study innovatively designs the automatic lifting system of the bogie and the docking part of the vehicle, introduces the automatic guidance technology and the remote-control technology to optimize the car body structure, and uses the SAP software to carry out the finite element analysis of the car body load capacity and Flexsim software to carry out the simulation analysis on the operation of vehicles. The designed transfer vehicle can improve the transfer efficiency of ocean port containers, reduce the transit time of field and station equipment and container transport links, and improve the level of multimodal transport and comprehensive economic benefits

5

Study on the design of container highway and railway automatic transfer vehicle in ocean port

51%

Dong L. , Liu G. , Ye X. , Wang W.

Polish Maritime Research

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2018

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tom S 3

5--12

EN

To realize “seamless” connection of ocean port container multimodal transport, efficiently carry out “door-to-door” transport of ocean port containers and overcome the shortcomings of existing highway and railway vehicles, this study takes the standard for heavy-duty container vehicles in TB1335-1996 Railway Vehicle Strength Design and Test Identification Code as the design basis and designs a new ocean port container transport vehicle in combination with automatic guidance technology. This study innovatively designs the automatic lifting system of the bogie and the docking part of the vehicle, introduces the automatic guidance technology and the remote-control technology to optimize the car body structure, and uses the SAP software to carry out the finite element analysis of the car body load capacity and Flexsim software to carry out the simulation analysis on the operation of vehicles. The designed transfer vehicle can improve the transfer efficiency of ocean port containers, reduce the transit time of field and station equipment and container transport links, and improve the level of multimodal transport and comprehensive economic benefits.

6

Research on rub-impact loads response of ship shafting

51%

Dong L. , Shi Y. , Wang S.

Polish Maritime Research

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2018

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tom S 2

85--91

EN

The anti-impact ability of shafting affects stability and security of the ship power transmission directly. Moreover, it also cannot be ignored that the rub-impact loads have influence on the torsion vibration of ship shafting. In order to solve the problem of engineering application of reliability assessment under rub-impact loads, a test rig with rubbing generator is established. By carrying out the integrative analysis, the torsional vibration characteristics, such as vibration amplitude and orbit of axle center under the rub impact load are studied. According to the rub-impact conditions obtained through numerical simulation, the experimental verification is carried out on the test rig with rubbing generator. The results show that it is not obvious the influence of rub-impact loads upon the shafting torsion vibration except in special working conditions, that can be simulated by the rubbing generator. The maximum amplitude of torsional vibration is influenced by the radial rigidity as well as the friction coefficient of rubbing body, and the degree of influence is difference under conditions of continuous rubbing and serious rubbing. By adjusting the rigidity of stern bearing, the influence of rub-impact upon shafting can be weaken, which provides a theoretical reference for the safety evaluation of ship shafting.

7

A comparison of objective functions of optimization-based smoothing algorithm for tetrahedral mesh improvement

51%

Dai C. , Liu H.-L. , Dong L.

Journal of Theoretical and Applied Mechanics

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2014

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tom Vol. 52 nr 1

151--163

EN

The objective function based on mesh quality metric has a major impact on smoothing unstructured tetrahedral meshes. The ability of seven mesh quality metrics to distinguish four kinds of poor-quality elements and their effects on the change of element shape are analyzed in detail. Then, four better mesh quality metrics are chosen to construct objective functions. In addition, the rational determination of searching direction and the optimal step size in the optimization algorithm of solving the objective function are proposed. Finally, comparisons with the other three objective functions are made according to different number of elements, iteration limit, and the desired accuracy in the improved mesh. It is found that with the increase of the number of elements, the time consumed during optimization increases, but the changes of the worst quality element are different. The number of iterations has little effect on the mesh quality and the time cost. The increasing of the desired degree of accuracy will improve the mesh quality and cost more time. Furthermore, the approach using objective function is compared with Freitag’s common approach. It is clearly shown that it performs better than the existing approach.

8

Game-based Decentralized Charging Control for Large Populations of Electric Vehicles

45%

Xie K. , Dong L. , Liao X. , Gao Z. , Gao Y.

Przegląd Elektrotechniczny

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2012

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tom R. 88, nr 7b

252--255

EN

This paper proposes a game-based decentralized charging control strategy for large populations of electric vehicles (EVs). Assuming all EV owners make their own charging strategy according to the electricity price and the total electricity demand of the day before, the owners can be guided to actively participate in the game by a set of electricity pricing mechanism. The existence of Nash equilibrium and the global optimum (or ‘Valley-filling’) of the charging strategy are verified. Simulation results demonstrate the convergence to the Nash equilibrium within a few iterations.

PL

W artykule zaproponowano strategię ładowania dla dużej populacji pojazdów elektrycznych bazująca na teorii gier. Strategia wykorzystuje informacje o cenie energii i prognozowanym zapotrzebowaniu. Zweryfikowano metody optymalizacji.

9

Peptide micro-arrays for kinase profiling

45%

Schutkowski M. , Reimer U. , Panse S. , Dong L. , Schneider-Mergener J.

Cellular and Molecular Biology Letters

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2003

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tom 08

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nr 2A

10

Effect of salinity on ion homeostasis in three halophyte species, Limonium bicolor, Vitex trifolia Linn. var. simplicifolia Cham and Apocynaceae venetum

38%

Yin D. , Zhang J. , Jing R. , Qu Q. , Guan H. , Zhang L. , Dong L.

Acta Physiologiae Plantarum

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2018

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tom 40

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nr 02

EN

Limonium bicolor, Vitex trifolia Linn. var. simplicifolia Cham and Apocynaceae venetum are halophyte species with ecological restoration function of saline soil that are widely distributed in coastal areas around Bohai Sea in China. The mechanism of response to salt stress is different between them. The salt-tolerance mechanism, especially for ion homeostasis, of these halophytes varies and is not properly understood. The purpose of the work was to reveal the effect of salinity on ion homeostasis in these three halophyte species. Plant growth, leaf succulence, Na⁺, K⁺ and Cl⁻ concentrations, as well as ion flux were examined at various concentrations (0–100%) of artificial sea water after 10 days. The results showed as follows: the growth of L. bicolor was obviously stimulated under salt stress, while V. trifolia Linn. var. simplicifolia Cham and A. venetum was strongly inhibited. The contents of Na⁺ and Cl⁻ increased with salinity in the three halophyte species, in both the leaves and roots. The accumulation of K⁺ in roots was promoted by salinity except in L. bicolor subjected to 100% artificial sea water concentration. L. bicolor roots showed a lower net Na⁺ efflux compared with the control. By contrast, V. trifolia Linn. var. simplicifolia Cham and A. venetum roots retained a greater capacity for net Na⁺ efflux compared with the control. L. bicolor and V. trifolia Linn. var. simplicifolia Cham roots exhibited a lower and higher net Cl⁻ influx, respectively, than the control, but the differences were not significant. By contrast, A. venetum roots exhibited a Cl⁻ efflux compared with the control. L. bicolor and V. trifolia Linn. var. simplicifolia Cham roots reduced net K⁺ efflux, and L. bicolor even appeared to exhibit a K⁺ influx at certain points in time, whereas A. venetum strongly increased net K⁺ efflux compared with the control. The accumulation and partitioning of ions differed between the three halophyte species, and the salt-tolerance ranking from high to low was L. bicolor, V. trifolia Linn. var. simplicifolia Cham, and A. venetum.

11

Research on Improved LEACH Protocol of Wireless Sensor Networks

38%

Shan J. , Dong L. , Liao X. , Shao L. , Gao Z. , Gao Y.

Przegląd Elektrotechniczny

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2013

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tom R. 89, nr 1b

75--77

EN

This investigation was performed to see if the improved LEACH protocol operates more effectively than the traditional LEACH protocol. The improved protocol adds energy factor and distance factor to the threshold T(n). The multi-hop routing algorithm of cluster head is introduced too, it based on the hop count and the remaining energy. MATLAB was used to simulate. The simulation data suggests that the death rate of nodes of the improved protocol was lower than the traditional one. It is concluded that the improved LEACH protocol can balance network load and extend the life-cycle of network.

PL

Zbadano efektywność pracy udoskonalonego, w stosunku do tradycyjnego, protokołu hierarchicznego klastrowania LEACH. Udoskonalenie protokołu polega na wprowadzeniu współczynników energii i odległości węzłów oraz wykorzystaniu ich przy obliczaniu wartości progowej T(n). Zastosowano również wielo-przeskokowy algorytm klastrowania węzła głównego. Algorytm działa na zasadzie liczenia przeskoków i zachowania energii. Do symulacji wykorzystano program MATLAB. Wyniki symulacji wykazują, że tempo uszkodzeń węzłów przy zastosowaniu udoskonalonego protokołu jest mniejsze niż w przypadku tradycyjnego. Podsumowując, udoskonalony protokół LEACH może zrównoważyć obciążenie i wydłużyć okres życia sieci.

12

Regional features analysis of plugged holes of dense phase gas-solid separation fluidized bed

38%

Zhang B. , Zhao Y. , Luo Z. , Song S. , Duan C. , Dong L.

Physicochemical Problems of Mineral Processing

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2014

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tom Vol. 50, iss. 2

667--679

EN

In contrast to traditional coal separation, dry separation does not require water and does not cause water pollution. Dense phase gas–solid fluidized beds are used for dry separation. The plugged holes in the air distributor should be tested to ensure the stability of these beds for particle separation. The pressure fluctuation is sensitive to these plugged holes. This sensitivity can be tested and diagnosed by determining the standard deviation of the pressure fluctuation. In areas with partial blockage, that is the areas with weak fluidization, a decrease in the volume fraction of the particles and in the pressure differences in the transverse of the bed results in an increase of the standard deviation of the pressure fluctuation, thereby stimulating the lateral mixing of medium-sized particles. The standard deviation and the mixing intensity decrease axially. The value of sensitivity of the plugged holes in the air distributor decreases as the height of the bed increases. The features of air distributors affect the surrounding areas. The distribution law determining the influence of plugged holes on the beds is symmetrical. As the blockage of the fluidized bed distributor region increases, the mean square error of the pressure fluctuation in the related regions increases. The intensity of the effect is proportional to the distance to the plugged holes.

13

Effect of bamboo vinegar powder on the expression of the immune-related genes MyD88 and CD14 in weaning piglets

38%

Qin W. Y. , Gan L. N. , Dong L. , Yu L. H. , Wu S. L. , Bao W. B.

Polish Journal of Veterinary Sciences

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2018

|

tom 21

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nr 3

14

A planning model for the chemical integrated system under uncertainty by grey programming approach

38%

Ren J. , Tan S. , Dong L. , Zhou Z. , Gao S. , Pan C.

Polish Journal of Chemical Technology

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2013

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tom Vol. 15, nr 2

16--22

EN

A model to optimize the planning of the chemical integrated system comprised by multi-devices and multi-products has been proposed in this paper. With the objective to make more profits, the traditional model for optimizing production planning has been proposed. The price of chemicals, the market demand, and the production capacity have been considered as mutative variables, then an improved model in which some parameters are not constant has been developed and a new method to solve the grey linear programming has been proposed. In the grey programming model, the value of credibility can be suggested by the decision-makers, and the results of the production planning calculated by the model can help them to achieve their desired target. An actual case has been studied by the proposed methodology, and the proposed methodology can be popularized to other cases.

15

An improved resonant thermal converter based on micro-bridge resonator

38%

Dong L. , Han J. , Zhang P. , Zhao Z. , Cheng B. , Han D.

Metrology and Measurement Systems

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2018

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tom Vol. 25, nr 4

715--725

EN

This paper presents the design, fabrication and testing of an improved thin-film thermal converter based on an electro-thermally excited and piezo-resistively detected micro-bridge resonator. The resonant thermal converter comprises a bifilar heater and an opposing micro-bridge resonator. When the micro-bridge resonator absorbs the radiant heat from the heater, its axial strain changes, then its resonant frequency follows. Therefore the alternating voltage or current can be transferred to the equivalent DC quantity. A non-contact temperature sensing mechanism eliminates heat loss from thermopiles and reduces coupling capacitance between the temperature sensor and the heater compared with traditional thin-film thermal converters based on thermopiles. In addition, the quasi-digital output of the resonant thin-film thermal converter eliminates such problems as intensity fluctuations associated with analogue signals output by traditional thin-film thermal converters. Using the fast-reversed DC (FRDC) method, the thermoelectric transfer difference, which determines the frequency-independent part of the ac-dc transfer difference, is evaluated to be as low as 1.1 · 10-6. It indicates that the non-contact temperature sensing mechanism is a feasible method to develop a high-performance thermal converter.

16

Visfatin regulates inflammatory mediators in mouse intestinal mucosa through toll-like receptors signaling under lipopolysaccharide stress

32%

Pang X. X. , Ansari A. R. , Yang W. J. , Niu X. Y. , Dong L. , Li H. Z. , Xu F. L. , Zhang Z. W. , Xiao K. , Hui S.

Archivum Immunologiae et Therapiae Experimentalis

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2021

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tom 69

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nr 1