Autor: Guo, R. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: An univariate DEMR modelling on repair effects
Autorzy:: Guo, R.
Powiązania:: https://bibliotekanauki.pl/articles/2069614.pdf
Data publikacji:: 2007
Wydawca:: Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:: grey theory
DEMR
differential equation motivated regression
repair effect
credibility measure theory
random fuzzy variable
Opis:: Repairable system analysis is in nature an evaluation of repair effects. Recent tendency in reliability engineering literature was estimating system repair effects or linking repair to certain covariate to extract repair impacts by imposing repair regimes during system reliability analysis. In this paper, we develop a differential equation motivated regression (abbreviated as DEMR) model with a random fuzzy error term based on the axiomatic framework of self-dual fuzzy credibility measure theory proposed by Liu [5] and grey differential equation models. The fuzzy variable indexes the random fuzzy error term will be used to facilitate the evaluation of repair effects. We further propose a parameter estimation approach for the fuzzy variable (repair effect) under the maximum entropy principle.
Źródło:: Journal of Polish Safety and Reliability Association; 2007, 1; 157--165
2084-5316
Pojawia się w:: Journal of Polish Safety and Reliability Association
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Fuzzy regression : a scalar variable formation
Autorzy:: Guo, R.
Guo, D.
Powiązania:: https://bibliotekanauki.pl/articles/2069559.pdf
Data publikacji:: 2008
Wydawca:: Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:: credibility measure
fuzzy variable
fuzzy regression
M-estimator
variance-covariance matrix
Opis:: In reliability, quality control and risk analysis, fuzzy methodologies are more and more involved and inevitably introduced difficulties in seeking fuzzy functional relationship between factors. In this paper, we propose a scalar variable formation of fuzzy regression model based on the credibility measure theoretical foundation. It is expecting our scalar variable treatments on fuzzy regression models will greatly simplify the efforts to seeking fuzzy functional relationship between fuzzy factors. An M-estimator for the regression coefficients is obtained and accordingly the properties and the variance-covariance for the coefficient M-estimators are also investigated in terms of weighted least-squares arguments. Finally, we explore the asymptotic membership function for the coefficient M-estimators.
Źródło:: Journal of Polish Safety and Reliability Association; 2008, 1; 159--167
2084-5316
Pojawia się w:: Journal of Polish Safety and Reliability Association
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Nash-lambda algorithm with applications in safety and reliability
Autorzy:: Cui, Y.
Guo, R.
Powiązania:: https://bibliotekanauki.pl/articles/2069567.pdf
Data publikacji:: 2011
Wydawca:: Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:: lambda algorithm
Nash equilibrium
genetic algorithm
safety
reliability
terrorist threa
Opis:: In this paper, a new algorithm, named as Nash-lambda algorithm by merging Nash equilibrium solution and the lambda algorithm, is proposed. The lambda algorithm, a new global optimization algorithm, is created by imitating ancient Chinese human body system model, which has already demonstrated its simplicity in searching scheme, codes and efficiency in computation comparing to the genetic algorithm. The noncorporative game environments determine the optimization problems which are different from those of the traditional safety and reliability optimizations because of the engagement of the Nash equilibrium for seeking the best strategy. The lambda algorithm serves the searching the Nash equilibrium solution efficiently. In other worlds, the Nash-lambda algorithm is just developed to address the optimization problems of the multiple objective functions representing non-corporative players’ interests.
Źródło:: Journal of Polish Safety and Reliability Association; 2011, 2, 1; 51--58
2084-5316
Pojawia się w:: Journal of Polish Safety and Reliability Association
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: DEAR theory and applicability in system dynamics analysis
Autorzy:: Guo, R.
Guo, D.
Powiązania:: https://bibliotekanauki.pl/articles/2069553.pdf
Data publikacji:: 2008
Wydawca:: Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:: DEAR theory
random fuzzy variable
system dynamics
repair effect
quality dynamics
ecosystem
Opis:: In this paper, we introduce our newly created DEAR (an abbreviation of Differential Equation Associated Regression) theory, which merges differential equation theory, regression theory and random fuzzy variable theory into a new rigorous small sample based inferential theoretical foundation. We first explain the underlying idea of DEAR modelling, its classification, and then the M-estimation of DEAR model. Furthermore, we explore the applicability of DEAR theory in the analysis in system dynamics, for example, repairable system analysis, quality dynamics analysis, stock market analysis, and ecosystem analysis, etc.
Źródło:: Journal of Polish Safety and Reliability Association; 2008, 1; 149--158
2084-5316
Pojawia się w:: Journal of Polish Safety and Reliability Association
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Design of Dielectric Substrates for High T$\text{}_{c}$ Superconductor Films
Autorzy:: Bhalla, A.
Guo, R.
Powiązania:: https://bibliotekanauki.pl/articles/1964228.pdf
Data publikacji:: 1997-07
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 73.61.Νg
74.76.Βz
Opis:: Investigations on the design and engineering of candidate substrate materials suitable for high T$\text{}_{c}$ superconductor thin film deposition and applications have yielded several exciting new hosts such as Ba(Mg$\text{}_{1}\text{}_{/}\text{}_{3}$ Ta$\text{}_{2}\text{}_{/}\text{}_{3}$ )O$\text{}_{3}$, Sr(Al$\text{}_{1}\text{}_{/}\text{}_{2}$ Ta$\text{}_{1}\text{}_{/}\text{}_{2}$ )O$\text{}_{3}$, and Sr(Αl$\text{}_{1}\text{}_{/}\text{}_{2}$ Νb$\text{}_{1}\text{}_{/}\text{}_{2}$ )O$\text{}_{3}$. Dielectric properties, thermal expansion coefficients, melting temperatures and growth feasibility were tested for a wide range of substrate materials and solid solutions. These complex perovskite crystals and their associated solid solutions provide new options for ultra low loss, low permittivity substrates with close structural and thermal matching to the YΒa$\text{}_{2}$Cu$\text{}_{3}$O$\text{}_{7-δ}$. Several new materials have been tested for high Τ$\text{}_{c}$ superconductor film depositions. Α laser heated pedestal growth system has been used as an essential tool in producing single crystals for testing. Development on the predictive capability of the dielectric constant of ionic solids, by improving Shannon's approach, will also be discussed in this paper.
Źródło:: Acta Physica Polonica A; 1997, 92, 1; 7-21
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Lambda algorithm and maximum likelihood estimation
Autorzy:: Cui, Y.
Guo, R.
Guo, D.
Powiązania:: https://bibliotekanauki.pl/articles/2069616.pdf
Data publikacji:: 2011
Wydawca:: Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:: lambda algorithm
genetic algorithm
reliability
repairable system
likelihood-lambda procedure
Opis:: In this paper, a new global optimization algorithm by imitating ancient Chinese human body system model, named as lambda algorithm, is introduced. The lambda algorithm utilizes five-element multi-segment string to represent the n-dimensional Euclidean point and hence the string based operation rules for expansion, comparison and sorting candidate strings. The algorithm enjoys the simplest mathematical operations but generates highest searching speed and accuracy. We furthermore explore to merge the lambda algorithm with maximum likelihood procedure for creating a non-derivative scheme – likelihood- lambda procedure. A illustrative example is given.
Źródło:: Journal of Polish Safety and Reliability Association; 2011, 2, 1; 59--72
2084-5316
Pojawia się w:: Journal of Polish Safety and Reliability Association
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Random fuzzy Poisson processes
Autorzy:: Guo, R.
Nyirenda, J.
Guo, D.
Powiązania:: https://bibliotekanauki.pl/articles/2069685.pdf
Data publikacji:: 2009
Wydawca:: Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:: credibility measure
credibilistic fuzzy variable
random fuzzy variable
average chance distribution
Opis:: Poisson processes, particularly the time-dependent extension, play important roles in reliability and risk analysis. It should be fully aware that the Poisson modeling in the current reliability engineering and risk analysis literature is merely an ideology under which the random uncertainty governs the phenomena. In other words, current Poisson Models generate meaningful results if randomness assumptions hold. However, the real world phenomena are often facing the co-existence reality and thus the probabilistic Poisson modeling practices may be very doubtful. In this paper, we define the random fuzzy Poisson process, explore the related average chance distributions, and propose a scheme for the parameter estimation and a simulation scheme as well. It is expecting that a foundational work can be established for Poisson random fuzzy reliability and risk analysis.
Źródło:: Journal of Polish Safety and Reliability Association; 2009, 1; 113--122
2084-5316
Pojawia się w:: Journal of Polish Safety and Reliability Association
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Coexistence of synchronization and anti-synchronization in chaotic systems
Autorzy:: Ren, L.
Guo, R.
Vincent, U. E.
Powiązania:: https://bibliotekanauki.pl/articles/229655.pdf
Data publikacji:: 2016
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: coexistence synchronization
complete synchronization
anti-synchronization
unified chaotic system
Opis:: The coexistence of anti-synchronization and synchronization in chaotic systems is investigated. A novel algorithm is proposed to determine the variables of the master system that should anti-synchronize with corresponding variables of the slave system. Control strategies that guarantee the coexistence of synchronization and anti-synchronization in the unified chaotic system are presented; while numerical simulations are employed to validate and illustrate the effectiveness of the proposed method.
Źródło:: Archives of Control Sciences; 2016, 26, 1; 69-79
1230-2384
Pojawia się w:: Archives of Control Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Lifetime distributions with wave-like bathtub hazard
Autorzy:: Guo, R.
Thiart, C.
Cui, Y.
Guo, D.
Powiązania:: https://bibliotekanauki.pl/articles/2069543.pdf
Data publikacji:: 2011
Wydawca:: Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:: lifetime distribution
hazard
bathtub hazard
likelihood function
maximum likelihood estimation
Opis:: In this paper, we argue the necessity of dealing with lifetime distributions with wave-like bathtub hazard function. Four classes of wave-like bathtub hazards are investigated. For preparing maximum likelihood estimation of the hazard parameters, the first-order and second-order partial derivatives are derived.
Źródło:: Journal of Polish Safety and Reliability Association; 2011, 2, 1; 115--122
2084-5316
Pojawia się w:: Journal of Polish Safety and Reliability Association
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Decision theory under general uncertainty
Autorzy:: Cui, Y.
Guo, R.
Dunne, T.
Guo, D.
Powiązania:: https://bibliotekanauki.pl/articles/2069606.pdf
Data publikacji:: 2010
Wydawca:: Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:: statistical decision
state space
action space
uncertain measure
loss function
risk
uncertainty decision
Opis:: The exposure of Toyota management’s cover-up of its faulty car component problems raises a fundamental question: did Toyota management make an appropriate decision taking all uncertainties into account? Statistical decision theory is a framework with a probabilistic foundation, which admits random uncertainty about the real world and human thinking. In general, the uncertainty of the real world is diversified and therefore the effort of trying to deal with different forms of uncertainty with one special form of uncertainty, namely random uncertainty, may be oversimplified. In this paper, we introduce an axiomatic uncertain measure theoretical framework and explore the essential mechanism in formulating a general uncertainty decision theory. We expect that a new understanding of uncertainty and development of a corresponding new uncertainty decision-making approach may assist intelligence communities to survive and deal with the extremely tough and diverse aspects of an uncertain reality.
Źródło:: Journal of Polish Safety and Reliability Association; 2010, 1, 1; 51--66
2084-5316
Pojawia się w:: Journal of Polish Safety and Reliability Association
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: Fabrication and Characterization of Photochromic Spirooxazine/Polyvinylidene Fluoride Fiber Membranes via Electrospinning
Wytwarzanie za pomocą elektroprzędzenia i charakterystyka fotochromowych membran światłowodowych z spiroksazyny i fluorku poliwalildanu
Autorzy:: Peng, L.
Guo, R.
Lan, J.
Jiang, S.
Powiązania:: https://bibliotekanauki.pl/articles/946161.pdf
Data publikacji:: 2018
Wydawca:: Sieć Badawcza Łukasiewicz - Instytut Biopolimerów i Włókien Chemicznych
Tematy:: PVDF
spirooxazine
electrospinning
photochromic
hydrophobic
spiroksaksyna
elektroprzędzenie
membrany światłowodowe
Opis:: In this study, photochromic spirooxazine material of N-methyl-3,3-dimethyl-9'-hydroxy-spiro[2H-indole-2-[3H] naphtho [2,1-b] [1,4] oxazine] was synthesised. Spirooxazine/PVDF fiber (SPF) membranes with different contents ofspirooxazine were successfully prepared by electrospinning. The SPF membranes were characterised by FTIR and SEM.The photochromic properties and contact angle of the SPF membranes were evaluated. The results show that the SPF membranes change from colorless to blue whenexposed to UV light, but they revert to their original colour after the UV light disappears. The colour difference and contact angle of the SPF membranes firstly increase and then decrease with a rise in the content of spirooxazine.
W pracy otrzymano fotochromowy materiał spirooksazynowy N-metylo-3,3-dimetylo-9'-hydroksy-spiro [2H-indolo-2 - [3H] nafto [2,1-b] [1,4] oksazyny]. Za pomocą elektroprzędzenia wytworzono membrany z spiroksaksyny i fluorku poliwalildanu PVDF (SPF) o różnej zawartości spiroksaksyny. Błony SPF scharakteryzowano za pomocą FTIR i SEM. Oceniono właściwości fotochromowe i kąt zwilżania błon SPF. Wyniki pokazały, że membrany SPF zmieniają kolor z bezbarwnego na niebieski po ekspozycji na światło UV, ale powracają do swojego pierwotnego koloru po zaniku światła UV. Różnica barwy i kąt zwilżania membran SPF najpierw wzrastają, a następnie zmniejszają się wraz ze wzrostem zawartości spirooksazyny.
Źródło:: Fibres & Textiles in Eastern Europe; 2018, 4 (130); 34-38
1230-3666
2300-7354
Pojawia się w:: Fibres & Textiles in Eastern Europe
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 12.

Tytuł:: Reliability concept under general uncertainty
Autorzy:: Guo, R.
Cui, Y.
Thiart, C.
Guo, D.
Powiązania:: https://bibliotekanauki.pl/articles/2069525.pdf
Data publikacji:: 2010
Wydawca:: Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:: probabilistic reliability
uncertain reliability
uncertain measure
uncertainty lifetime
uncertain hazard function
Opis:: The Toyota crisis is tearing off the brand image of quality and reliability and therefore it is logical to question whether the dominating position of probability theory, on which Japanese quality and reliability engineering practices are established, should be examined. In general, reliability analysis is an exercise under uncertain environment. Foundationally speaking, uncertain modeling is a matter of choosing what kind of uncertain measure as its standing point. In this paper, we introduce the uncertainty reliability concept on the platform of the axiomatic uncertain measure theory and compare it to probabilistic reliability concept based on Kolmogorov’s probability measure theory, on which the traditional quality and reliability engineering is established. It is expecting that a foundational work can be established for a more rigorous reliability engineering and risk analysis under general uncertainty environments.
Źródło:: Journal of Polish Safety and Reliability Association; 2010, 1, 1; 105--114
2084-5316
Pojawia się w:: Journal of Polish Safety and Reliability Association
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 13.

Tytuł:: Hybrid reliability modelling under general uncertainty
Autorzy:: Guo, R.
Cui, Y.
Thiart, C.
Guo, D.
Powiązania:: https://bibliotekanauki.pl/articles/2069636.pdf
Data publikacji:: 2010
Wydawca:: Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:: uncertain measure
hybrid lifetime
uncertain parameter
average chance reliability
Opis:: The real world phenomena are often facing the co-existence reality of different formality of uncertainty and thus the probabilistic reliability modeling practices are very doubtful. Under complicated uncertainty environments, hybrid variable modeling is important in reliability and risk analysis, which includes Bayesian distributional theory, random fuzzy distributional theory, as well as fuzzy random distributional theory as special distribution families. In this paper, we define a new hybrid lifetime which is specified by a random lifetime distribution with an uncertain distributed parameter, which is called as random uncertain hybrid lifetime. We furthermore define the average chance distribution as a quality index for quantifying the hybrid lifetime and accordingly the average chance reliability is derived.
Źródło:: Journal of Polish Safety and Reliability Association; 2010, 1, 1; 115--122
2084-5316
Pojawia się w:: Journal of Polish Safety and Reliability Association
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 14.

Tytuł:: Random fuzzy continuous-time Markov chains
Autorzy:: Guo, R.
Nyirenda, J.
Dunne, T.
Guo, D.
Powiązania:: https://bibliotekanauki.pl/articles/2069696.pdf
Data publikacji:: 2009
Wydawca:: Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:: stochastic semigroup
rate matrix
credibility measure
repairable system
random fuzzy Markov process
Opis:: Continuous-time Markov chains is an important subclass in stochastic processes, which have facilitated many applications in business decisions, investment risk analysis, insurance policy making and reliability modeling. It should be fully aware that the existing continuous-time Markov chains theory is merely an ideology under which the random uncertainty governs the phenomena. However, the real world phenomena are often revealing the randomness and vagueness co-existence reality and thus the probabilistic continuous-time Markov chains modeling practices may be not adequate. In this paper, we define the random fuzzy continuous-time Markov chains, explore the related average chance distributions, and propose a scheme for the parameter estimation and a simulation scheme as well. It is expecting that a foundational work can be established for reliability modeling and risk analysis, particularly, repairable system modeling.
Źródło:: Journal of Polish Safety and Reliability Association; 2009, 1; 123--132
2084-5316
Pojawia się w:: Journal of Polish Safety and Reliability Association
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 15.

Tytuł:: Female mouse model of diabetes mellitus induced by streptozotocin and high-carbohydrate high-fat diet
Autorzy:: Guo, R.
Dong, J.
Wang, D.Q.
Gu, Y.F.
Powiązania:: https://bibliotekanauki.pl/articles/16627528.pdf
Data publikacji:: 2022
Wydawca:: Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:: diabetes mellitus
female mouse
pathological analysis
streptozotocin
high-carbohydrate high-fat diet
Opis:: With the improvement of people’s living standards and rapid economic development, the incidence of diabetes mellitus (DM) is increasing in most parts of the world. DM presents an important potential threat to human health. In the present study, a model of diabetes in female mice was established, and fasting blood glucose was detected at week 4, after which the biochemical profiles were evaluated by histopathological analysis. The success rate of modeling in the normal control (NC) group and the low/ middle/high-dose streptozotocin (STZ) group were 0, 0, 25% and 60%, respectively. In the middle-dose and high-dose STZ groups, the liver index was increased significantly compared with the NC group (p<0.05). The blood biochemical indicators of total cholesterol and low density lipoprotein cholesterol in three STZ injection groups were as follows: alanine aminotransferase and aspartate transaminase in middle- and high-dose STZ groups, high-density lipoprotein cholesterol and serum creatinine in the high-dose STZ group, and blood urea nitrogen in the middle-dose STZ group were significantly increased (p<0.05). The level of total triglycerides was lower, obviously, in the high-dose STZ group than in the NC group (p<0.05). The mice showed marked steatosis, green-dyed fiber tissue coloring in varying degrees, and the contour of the hepatic lobules basically disappeared in STZ injection groups. The results suggest that to establish a diabetes model for female ICR mice, the optimum dose of STZ is 100 mg/kg.
Źródło:: Polish Journal of Veterinary Sciences; 2022, 25, 4; 547-555
1505-1773
Pojawia się w:: Polish Journal of Veterinary Sciences
Dostawca treści:: Biblioteka Nauki

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