Autor: Wang, Qing - Prolib Integro

Skocz do pozycji: 1.

Tytuł:: Książka = Book ; KS/3/1992/R11
Support systems for decision and negotiation processes * Volume 2 * Uncertainty analysis and its mathematical basic system
Autorzy:: Ni, Tian-Zhi
Wang, Qing-Yin
Wydawca:: Instytut Badań Systemowych. Polska Akademia Nauk
Systems Research Institute. Polish Academy of Sciences
Powiązania:: Książka = Book
Opis:: 415-421 pages ; 21 cm
Bibliography p. 421
Bibliografia s. 421
415-421 stron ; 21 cm
In the process of analyzing the system optimization, this paper after drew the conclusion "Uncertainty lnformation Proceasing Is The Key Problem In System Optimization" ,discusaed the uncertainty mathematical basis ,put forward the basie uncertainty analyais concept and its theory system.
Dostawca treści:: RCIN - Repozytorium Cyfrowe Instytutów Naukowych

Książka

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Skocz do pozycji: 2.

Tytuł:: Phase Transition, Electronic and Magnetic Properties of CsN and RbN Alloys under Pressure
Autorzy:: Wei, Xiao-Ping
Zhang, Ya-Ling
Wang, Qing
Deng, Jian-Bo
Tematy:: 71.15.Mb
71.55.Ak
74.62.Fj; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Powiązania:: https://bibliotekanauki.pl/articles/1401895.pdf Link otwiera się w nowym oknie
Opis:: Using full-potential local-orbital minimum-basis method within density functional theory, we study the phase transition, electronic and magnetic properties of CsN and RbN alloys under external pressure. Concerning the phase transition, we consider three possible crystal structures, including caesium chloride (CsCl), rock salt (RS) and zinc blende (ZB) ones. Calculations of enthalpy exhibit that a pressure-induced phase transition occurs between the three structures, and the phase transitions are difficult to be distinguished under ambient condition (P=0 GPa). As the further increase of pressure, they can be specified clearly. In addition, the electronic calculations indicate that both alloys are half-metallic ferromagnets with a total magnetic moment of 2.000 $μ_{B}$, which is promising for fabricating spin injection devices. Finally, we discuss the electronic and magnetic properties of CsN and RbN under external pressure. A pressure-induced delocalized electronic states and magnetic phase transition are observed in RbN and CsN alloys.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Heuristic energy-saving virtual network embedding algorithm based on Katz centrality
Autorzy:: Zhu, Qiang
Wang, Qing-Jun
Zang, Mu-Jun
Wang, Zhen-Dong
Xiao, Chang
Tematy:: energy-saving virtual network
integer linear programming
Katz centrality
network virtualization embedding
virtualization; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/141679.pdf Link otwiera się w nowym oknie
Opis:: Current networks are designed for peak loads leading to low utilization of power resources. In order to solve this problem, a heuristic energy-saving virtual network embedding algorithm based on the Katz centrality (Katz-VNE) is proposed. For solving an energy-saving virtual network embedding problem, we introduce the Katz centrality to represent the node influence. In order to minimize the energy consumption of the substrate network, the energy-saving virtual network embedding problem is formulated as an integer linear program, and the Katz-VNE is used to solve this problem. The Katz-VNE tries to embed the virtual nodes onto the substrate nodes with high Katz centrality, which is effective, and uses the shortest paths offering the best factor of bandwidths to avoid the hot nodes. The simulation results demonstrate that the long-term average energy consumption of the substrate network is reduced significantly, and the long-term revenue/cost ratio, the acceptance rate of virtual network requests, and the hibernation rate of substrate nodes as well as links are improved significantly.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Experimental analysis of interfacial properties of sphere oblique impact with initial spin
Autorzy:: Wang, Qing-Peng
Wang, Zheng-Feng
Wang, Heng
Li, De-Feng
Gao, Xian-Kun
Xu, Guang-Yin
Tematy:: sphere
spin
oblique impact
contact surface
slip ratio; Pokaż więcej
Wydawca:: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Powiązania:: https://bibliotekanauki.pl/articles/2086967.pdf Link otwiera się w nowym oknie
Opis:: Experiments of a sphere oblique impact with and without an initial spin have been carried out to obtain properties of the impact interface. The contact surface is recorded with a piece of thin carbon paper. The interfacial parameters measured are expressed as axis length, contact area and slip ratio. It is found that for the impact between steels the forward spin can make geometrical sizes of the contact surface increase compared with the case of no initial spin, however, just the reverse for the backward spin. The effect of the initial spin becomes more apparent for the impact with a rubber cushion. Whether the initial spin promotes or hinders the sphere sliding depends on the parameters of tangential velocity and force at the interface.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Small mammal fauna from Wulanhuxiu (Nei Mongol, China) implies the Irdinmanhan–Sharamurunian (Eocene) faunal turnover
Autorzy:: LI, QIAN
WANG, YUAN-QING
FOSTOWICZ-FRELIK, ŁUCJA
Tematy:: mammalia
rodentia
duplicidentata
anagalidae
eocene
ulan shireh formation
china
erlian basin; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Instytut Paleobiologii PAN
Powiązania:: https://bibliotekanauki.pl/articles/945478.pdf Link otwiera się w nowym oknie
Opis:: Wulanhuxiu, a middle Eocene locality in the Erlian Basin, Nei Mongol (China) has been commonly regarded as belonging to the Ulan Shireh Formation, equated with the Irdin Manha Formation. We recognized two separate mammalian faunas of different age from the beds exposed at Wulanhuxiu. The lower fossiliferous horizon contains an anagalid, uncommon duplicidentate representatives (Gomphos progressus sp. nov., Mimolagus, Erenlagus, and Strenulagus), and diverse perissodactyls. This combination of taxa points to an Irdinmanhan age, but one element of the fauna (Schlosseria) may represent an Arshantan relic. Overall, the assemblage comprises “paleoplacental” mammals mixed with “neoplacentals”. The upper horizon is less species-rich and the only paleoplacentals present are scarce creodonts. However, this horizon is marked by abundant remains (including postcranial material) of the lagomorph Gobiolagus and by the presence of an advanced form of Gobiomys (Rodentia), and is most probably Sharamurunian in age. Thus, Wulanhuxiu documents replacement, albeit incomplete, of paleoplacentals by neoplacentals in the Chinese Eocene record.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Reconstruction of the cranial musculature of the paraceratheriid rhinocerotoid Pappaceras meiomenus and inferences of its feeding and chewing habits
Autorzy:: Wang, Hai-Bing
Bai, Bin
Gong, Yan-Xin
Meng, Jin
Wang, Yuan-Qing
Tematy:: mammalia
perissodactyla
paraceratheriidae
pappaceras meiomenus
chewing
eocene
china; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Instytut Paleobiologii PAN
Powiązania:: https://bibliotekanauki.pl/articles/945214.pdf Link otwiera się w nowym oknie
Opis:: The paraceratheriid Pappaceras is the earliest unequivocal rhinocerotoid genus to date, for which the osteological morphology is relatively unique compared to other perissodactyls. Due to the poor preservation condition, paleobiological aspects of Pappaceras (or forstercooperiines), such as chewing and feeding behavior, still remain unknown. Under the Extant Phylogenetic Bracket, the cranial musculature of the newly erected Pappaceras meiomenus has been reconstructed using two-dimensional illustrations, drawings and interpretations of the position and general morphology of cranial muscles for which origins and insertions on the skull are visible. In this study, eight muscles are reconstructed, described and compared to the corresponding muscles known or inferred in other perissodactyls, including the m. levator nasolabialis, the m. levator labii superior, the m. caninus, the m. zygomaticus, the m. masseter, the m. temporalis, the m. buccinator and the m. pterygoid. The reconstruction of the masticatory muscles suggests that Pappaceras meiomenus is strictly herbivorous, probably folivorous, with a primary component of vertical biting. The relatively well-developed m. pterygoid (particularly the m. pterygoideus medialis) indicates that Pappaceras meiomenus is similar to hyracodontids, having more advantages in rotary chewing than other non hyracodontid rhinocerotoids. The configuration of basicranial features shows differentiation between non-hyracodontids and hyracodontids, demonstrating that the well-developed, specialized postglenoid process and the wide glenoid fossa, along with the postcotyloid process of the mandible, serve as a strong fulcrum during the power stroke in non-hyracodontids. Based on its rostral morphology, we suggest that Pappaceras meiomenus was a general browser. The morphology of its incisors and canines further indicate the ability to feed on hard plants, using the postulated puncture-crushing and grinding function.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Non-destructive detection of high-strength wind turbine bolt looseness using digital image correlation
Autorzy:: Xie, Wei-Guo
Zhou, Peng
Chen, Li-Yun
Gu, Guo-Qing
Wang, Yong-Qing
Chen, Yu-Tao
Tematy:: bolt looseness detection
digital image correlation
loosening angle
preload force loss; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czasopisma i Monografie PAN
Powiązania:: https://bibliotekanauki.pl/articles/58973588.pdf Link otwiera się w nowym oknie
Opis:: Looseness of high-strength wind turbine bolts is one of the main types of mechanical failure that threaten the quality and safety of wind turbines, and how to non-destructively detect bolt loosening is essential to accurate assessment of operational reliability of wind turbine structures. Therefore, to address the issue of looseness detection of high-strength wind turbine bolts, this paper proposes a non-destructive detection method based on digital image correlation (DIC). Firstly, the mathematical relationships between the in-plane displacement component of the bolt’s nut surface, the bolt’s preload force loss and the bolt loosening angle are both deduced theoretically. Then, experimental measurements are respectively conducted with DIC with different small bolt loosening angles. The results show that the bolt loosening angle detection method based on DIC has a detection accuracy of over 95%, and the bolt’s preload force loss evaluated by the deduced relationship has a good agreement with the empirical value. Therefore, the proposed DIC-based bolt loosening angle detection method can meet the requirements of engineering inspection, and can achieve quantitative assessment of preload forces loss of wind turbine bolt.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Crack detection of high-strength wind turbine bolts based on fiber bragg grating sensors
Autorzy:: Chen, Yu-Tao
Zhou, Peng
Chen, Li-Yun
Gu, Guo-Qing
Dai, Li-Ya
Wang, Yong-Qing
Tematy:: wind turbine bolts
crack detection
fiber Bragg grating
finite element analysis; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czasopisma i Monografie PAN
Powiązania:: https://bibliotekanauki.pl/articles/58973829.pdf Link otwiera się w nowym oknie
Opis:: With the rapid development of the wind energy industry, there is an increasing concern about operation safety and reliability of high-strength wind turbine bolts. The aim of this paper is to monitor the strain change around the cracks in wind turbine bolts by means of fiber Bragg grating (FBG) sensors for crack detection. Firstly, the strain distributions of wind turbine bolts’ cracks with different locations and angles in the service condition are simulated using finite element analysis (FEA). Then, three-point grating string FBG sensors were pasted on the surface of wind turbine bolts with fatigue cracks to monitor the strain changes around the cracks in real time. By analysing the monitored strain data elaborately, the location of the crack on the bolt surface was successfully detected by identifying the location of the maximum strain detected by FBG sensors. In addition, the strain distributions in the vicinity area of the crack at different angles (0◦, 45◦and 90◦) were also monitored and analysed in depth. The different types of crack angles could be distinguished based on of different strain distribution of the vicinity of the crack tip at different angles. The experimental results show that the FBG sensing technology has a high degree of sensitivity and accuracy in crack detection of high-strength wind turbine bolts.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Denseformer for single image deraining
Autorzy:: Wang, Tianming
Wang, Kaige
Li, Qing
Tematy:: artificial intelligence
convolutional neural network
image deraining
sztuczna inteligencja
sieć neuronowa konwolucyjna
obraz pojedynczy; Pokaż więcej
Wydawca:: Uniwersytet Zielonogórski. Oficyna Wydawnicza
Powiązania:: https://bibliotekanauki.pl/articles/24987759.pdf Link otwiera się w nowym oknie
Opis:: Image is one of the most important forms of information expression in multimedia. It is the key factor to determine the visual effect of multimedia software. As an image restoration task, image deraining can effectively restore the original information of the image, which is conducive to the downstream task. In recent years, with the development of deep learning technology, CNN and Transformer structures have shone brightly in computer vision. In this paper, we summarize the key to success of these structures in the past, and on this basis, we introduce the concept of a layer aggregation mechanism to describe how to reuse the information of the previous layer to better extract the features of the current layer. Based on this layer aggregation mechanism, we build the rain removal network called DenseformerNet. Our network strengthens feature promotion and encourages feature reuse, allowing better information and gradient flow. Through a large number of experiments, we prove that our model is efficient and effective, and expect to bring some illumination to the future rain removal network.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: The effect of a hindered amine light stabilizer on the aging behavior of moisture-curable polyurethane as a cultural relics consolidant
Wpływ aminowego stabilizatora światła z zawadą przestrzenną na starzenie utwardzanego wilgocią poliuretanu stosowanego jako konsolidator zabytków
Autorzy:: Zhao, Xing
Wang, Liqin
Guo, Lang
Ma, Yanni
Wang, Ziming
Niu, Qing
Tematy:: moisture-curable polyurethane
hindered amine light stabilizer HALS 770
consolidant
cultural relics
aging
light stabilizer
poliuretan utwardzany w kontakcie z wilgocią
aminowy stabilizator światła HALS 770
konsolidator
relikty kulturowe
starzenie
stabilizator światła; Pokaż więcej
Wydawca:: Sieć Badawcza Łukasiewicz - Instytut Chemii Przemysłowej
Powiązania:: https://bibliotekanauki.pl/articles/947112.pdf Link otwiera się w nowym oknie
Opis:: This paper aims to study the effect of a hindered amine light stabilizer (HALS 770), on the aging behavior of moisture-curable polyurethane (MCPU). MCPU is specifically developed by ourselves for the reinforcement of fragile organic cultural relics in high-humidity environments, but its aging resistance is insufficient. To improve the aging resistance of MCPU, HALS 770 was used to prepare a modified MCPU (MMCPU). A colorimeter, an infrared spectrometer and a thermal analyzer were used to characterize the color and structure changes of MCPU and MMCPU during aging and to determine their aging kinetics. The results show that the activation energy for the thermal decomposition increased from 91–109 kJ/mol to 135–151 kJ/mol. When the color change is used as the indicator for aging, the lifetime of MMCPU under UV aging is 133% longer than that of MCPU, the lifetime of MMCPU under thermal aging at 293 K is 41.3 times that of MCPU. The addition of HALS 770 to MCPU significantly inhibits the aging behavior.
Zbadano wpływ dodatku aminowego stabilizatora światła z zawadą przestrzenną (HALS 770) na starzenie się poliuretanu utwardzanego w kontakcie z wilgocią (MCPU). MCPU opracowano specjalnie do wzmacniania delikatnych organicznych zabytków kultury w środowiskach o dużej wilgotności, jednak jego odporność na starzenie jest niewystarczająca. W celu zwiększenia odporności na starzenie MCPU modyfikowano (otrzymano MMCPU) dodatkiem aminowego stabilizatora światła z zawadą przestrzenną (HALS 770). Zmiany koloru, przyjęte jako wskaźnik starzenia, i struktury MCPU oraz kinetykę procesu oceniano z wykorzystaniem kolorymetru, spektrometru podczerwieni i analizatora termicznego. Wyniki wskazują, że dodatek HALS 770 w istotnym stopniu hamuje procesy starzenia MCPU – stwierdzono zwiększenie energii aktywacji rozkładu termicznego, z 91–109 kJ/mol MCPU do 135–151 kJ/mol – MMCPU. MMCPU w procesie starzenia UV był o 133% stabilniejszy niż MCPU i 41,3 razy bardziej odporny na starzenie termiczne w 293 K.
Dostawca treści:: Biblioteka Nauki

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