Autor: Zhao, Xing - Prolib Integro

Skocz do pozycji: 1.

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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Skocz do pozycji: 2.

Tytuł:: Evaluation of medical service quality based on a novel multi-criteria decision-making method with unknown weighted information
Autorzy:: Zhao, Butian
Zhang, Runtong
Xing, Yuping
Tematy:: interval-valued q-rung dual hesitant fuzzy set
Maclaurin symmetric mean operator
multi-criteria decision-making
aggregation operators; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/1845505.pdf Link otwiera się w nowym oknie
Opis:: In modern society, people concern more about the evaluation of medical service quality. Evaluation of medical service quality is helpful for medical service providers to supervise and improve their service quality. Also, it will help the public to understand the situation of different medical providers. As a multi-criteria decision-making (MCDM) problem, evaluation of medical service quality can be effectively solved by aggregation operators in interval-valued q-rung dual hesitant fuzzy (IVq-RDHF) environment. Thus, this paper proposes interval-valued q-rung dual hesitant Maclaurin symmetric mean (IVq-RDHFMSM) operator and interval-valued q-rung dual hesitant weighted Maclaurin symmetric mean (IVq-RDHFWMSM) operator. Based on the proposed IVq-RDHFWMSM operator, this paper builds a novel approach to solve the evaluation problem of medical service quality including a criteria framework for the evaluation of medical service quality and a novel MCDM method. What’s more, aiming at eliminating the discordance between decision information and weight vector of criteria determined by decisionmakers (DMs), this paper proposes the concept of cross-entropy and knowledge measure in IVq-RDHF environment to extract weight vector from DMs’ decision information. Finally, this paper presents a numerical example of the evaluation of medical service for hospitals to illustrate the availability of the novel method and compares our method with other MCDM methods to demonstrate the superiority of our method. According to the comparison result, our method has more advantages than other methods.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Evaluation of medical service quality based on a novel multi-criteria decision-making method with unknown weighted information
Autorzy:: Zhao, Butian
Zhang, Runtong
Xing, Yuping
Tematy:: interval-valued q-rung dual hesitant fuzzy set
Maclaurin symmetric mean
operator
multi-criteria decision-making
aggregation operators; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/1845522.pdf Link otwiera się w nowym oknie
Opis:: In modern society, people concern more about the evaluation of medical service quality. Evaluation of medical service quality is helpful for medical service providers to supervise and improve their service quality. Also, it will help the public to understand the situation of different medical providers. As a multi-criteria decision-making (MCDM) problem, evaluation of medical service quality can be effectively solved by aggregation operators in interval-valued q-rung dual hesitant fuzzy (IVq-RDHF) environment. Thus, this paper proposes interval-valued q-rung dual hesitant Maclaurin symmetric mean (IVq-RDHFMSM) operator and interval-valued q-rung dual hesitant weighted Maclaurin symmetric mean (IVq-RDHFWMSM) operator. Based on the proposed IVq-RDHFWMSM operator, this paper builds a novel approach to solve the evaluation problem of medical service quality including a criteria framework for the evaluation of medical service quality and a novel MCDM method. What’s more, aiming at eliminating the discordance between decision information and weight vector of criteria determined by decisionmakers (DMs), this paper proposes the concept of cross-entropy and knowledge measure in IVq-RDHF environment to extract weight vector from DMs’ decision information. Finally, this paper presents a numerical example of the evaluation of medical service for hospitals to illustrate the availability of the novel method and compares our method with other MCDM methods to demonstrate the superiority of our method. According to the comparison result, our method has more advantages than other methods.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Study on mechanical characteristics of rock type I fracture and anchorage strengthening mechanism
Autorzy:: Zhang, Wei
Zhao, Tongbin
Guo, Weiyao
Xing, Minglu
Tematy:: anchor rock
fracture type of I
fracture toughness
three-point bending test
toughening; Pokaż więcej
Wydawca:: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Powiązania:: https://bibliotekanauki.pl/articles/2104761.pdf Link otwiera się w nowym oknie
Opis:: Engineering rocks are easily affected by excavation unloading and are in uniaxial compres- sion or tension, forming a typical I-type tension crack. Anchor rods are often used for on-site support to ensure safety and reliability of the project. The study of propagation and pen- etration of type I tension cracks and quantitative evaluation of rock anchoring effects are of great significance for exploring mechanical properties of rock fracture and revealing the mechanism of rock failure. In this paper, combined with speckle light measurement, a rock fracture toughness test of different anchoring positions and pre-tightening forces is carried out, the deformation evolution law of the crack tip and the fracture mechanics characteris- tics of the anchored rock are obtained, and the anchoring strengthening mechanism of the rock is discussed based on the theory of the net stress intensity factor. The research shows that the rock fracture process is divided into four stages: elastic deformation, steady crack propagation, crack instability propagation and residual deformation. After anchoring, the time of crack instability growth can be prolonged by 172% and the final residual deformation can be increased by 148%. Compared with the unanchored rock, the fracture toughness of rock initiation and instability increased by 83% and 124% respectively, and increased with growth of the pre-tightening force, which shows that the bolt increases the critical value of rock initiation and instability to achieve the toughening effect. After the rock is anchored, the time required for the crack to propagate to the same length increases by 55%, and the lateral deformation area is reduced by 46%, indicating that the lateral closing force of the bolt inhibits crack propagation and delays the instability of the rock matrix.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Non-contact surface thermal deformation measurement based on chromatic confocal sensor
Autorzy:: Mao, Xiaoxiao
Xing, Zhiming
Zhao, Bin
Sun, Fei
Gao, Xiumin
Tematy:: chromatic confocal sensor
laser triangular displacement sensor
thermal deformation measurement
finite element method; Pokaż więcej
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Powiązania:: https://bibliotekanauki.pl/articles/58970429.pdf Link otwiera się w nowym oknie
Opis:: Chromatic confocal sensors are widely used in chip processing, high-precision instrument manufacturing, industrial testing and other fields because of high-precision displacement recognitioncapabilities. This research combines a chromatic confocal device with resistance temperature detector for dynamic deformation measurement of heating pipeline. The system is suitable for the measuring range of 300 µm and resolution can reach 0.3 µm. Using finite element method to simulate thermal deformation of aluminium with a thickness of 2 mm, and obtaining simulation trends and results. The end face of aluminium is heated continuously and uniformly in experiment, recording the data of spectral, laser triangular displacement sensor, and temperature sensor at 10°C intervals, respectively. And using Gaussian fitting algorithm to obtain spectral peaks, the corresponding thermal deformation is obtained through the relationship between wavelength and axial displacement. The results show that the experimental data of the chromatic confocal sensor is consistent with the laser triangular displacement sensor basically, with a maximum standard deviation of 1.06. In addition, simulation and experimental trends are consistent.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Light field camera all-in-focus image acquisition based on angular information
Autorzy:: Wu, Yingchun
Cheng, Xing
Liang, Jie
Wang, Anhong
Zhao, Xianling
Tematy:: all-in-focus image fusion
light field camera
spatial information
angular information
macro-pixel energy difference; Pokaż więcej
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Powiązania:: https://bibliotekanauki.pl/articles/1835771.pdf Link otwiera się w nowym oknie
Opis:: Traditional light field all-in-focus image fusion algorithms are based on the digital refocusing technique. Multi-focused images converted from one single light field image are used to calculate the all-in-focus image and the light field spatial information is used to accomplish the sharpness evaluation. Analyzing the 4D light field from another perspective, an all-in-focus image fusion algorithm based on angular information is presented in this paper. In the proposed method, the 4D light field data are fused directly and a macro-pixel energy difference function based on angular information is established to accomplish the sharpness evaluation. Then the fused 4D data is guided by the dimension increased central sub-aperture image to obtain the refined 4D data. Finally, the all-in-focus image is calculated by integrating the refined 4D light field data. Experimental results show that the fused images calculated by the proposed method have higher visual quality. Quantitative evaluation results also demonstrate the performance of the proposed algorithm. With the light field angular information, the image feature-based index and human perception inspired index of the fused image are improved.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Analysis and design of a novel target coding method for a portable coordinate measurement system
Autorzy:: Zhu, Lingjian
Zhao, Min
Yang, Shangwei
Huang, Yaokun
Jiang, Huan
Qin, Xing
Tematy:: portable coordinate measurement system
target structure
coded stereo target
high precision target measurement; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czasopisma i Monografie PAN
Powiązania:: https://bibliotekanauki.pl/articles/58973740.pdf Link otwiera się w nowym oknie
Opis:: The target coordinate measurement system features an extensive range of key applications. In many high- precision measurement systems wide scope, high precision and multiple cameras are used. However, the objective of this paper is to enhance the measurement accuracy and range of a monocular target owing to its portability and convenience. A systematic simulation of linear, planar and stereo target structures was carried out to investigate target structures. Based on our simulation results, the 3D target is more accurate and robust to tilt due to rich information available from 3D locations of the markers. To overcome the limitation in the measurement range for the monocular target, ideas of coded stereo target are presented in this paper. The measured coordinates can be calculated from only part of the markers, effectively enlarging the measurement range at short object distances. A stereo coded target system is designed based on this method and is compared to an ordinary monocular target. Stability experiments were conducted under different object distances and poses, which have shown that the Z direction accuracy of the stereo target is at least 23.8% or 10% higher than that of the 1D or 2D target, respectively. Additionally, the ranging experiment revealed that the measurement accuracy of the coded stereo target is 23.5% or 59.2% higher than that of the non-coded 1D or 2D target when measuring the Z direction and the distance of the far field.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Dexamethasone inhibits U937 cell adhesion via the down-regulation of ROCK1 activity
Autorzy:: Liu, Dong
Chen, Xing
Xiong, Ren
Ning, Ya
Li, Ping
Peng, Yan
Liu, Ping
Zhao, Yan
Yang, Nan
Zhou, Yuan
Tematy:: dexamethasone
ROCK1
fasudil
non-genomic effects; Pokaż więcej
Wydawca:: Polskie Towarzystwo Biochemiczne
Powiązania:: https://bibliotekanauki.pl/articles/1039650.pdf Link otwiera się w nowym oknie
Opis:: Objective. To explore the effect of dexamethasone (DEX) on monocyte adhesion function and its underlying mechanism. Methods. The effects of DEX and fasudil on adhesion of cultured U937 monocytes to human umbilical vein endothelial cells (HUVEC) following stimulation with phorbol myristate acetate (PMA) were studied; Changes in the Rho-associated coiled-coil protein kinase 1 (ROCK1) protein content and activity were evaluated. Results. DEX and fasudil significantly inhibited U937 cell adhesion rates under PMA stimulation and inhibited ROCK1 activity. Mifepristone (RU-486) and cycloheximide (CHX) did not alter these effects of DEX. Conclusions. DEX interferes with the adhesion function of U937 cells through the inhibition of ROCK1 activity.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Ezetimibe prevents myocardial remodeling in an obese rat model by inhibiting inflammation
Autorzy:: Li, Xiao-Xing
Zhao, Lang
Chang, Ying
Liu, Bao-Shan
Xu, Feng
Zhang, Cheng
Ji, Xiao-Ping
Chen, Yu-Guo
Li, Chuan-Bao
Tematy:: obese
inflammation
remodeling
ezetimibe
IL-6; Pokaż więcej
Wydawca:: Polskie Towarzystwo Biochemiczne
Powiązania:: https://bibliotekanauki.pl/articles/1038380.pdf Link otwiera się w nowym oknie
Opis:: Inflammation plays an important role in the development of many obesity-related diseases. This study aimed to investigate the effect of ezetimibe on inflammation and myocardial remodeling in obese rats. A rat model of obesity was established, and myocardial damage was examined by transmission electron microscopy and Masson staining. Twenty obese rats were divided into two groups (n=10): obese group and ezetimibe group. Ten SD rats were used as controls. Western blot was performed to monitor the expression of P-p38MAPK and interleukin (IL)-6. Immunohistochemical staining was used to monitor the expression of intercellular adhesion molecule-1 and vascular cell adhesion molecule-1. In the obese rats group, we observed increased inflammatory factors and myocardial hypertrophy. In contrast, the ezetimibe group exhibited decreased expression of inflammatory factors and an improvement in myocardial remodeling compared to the obese group. Mechanistically, we found that ezetimibe decreased P-p38MAPK, IL-6, intercellular adhesion molecule-1, and vascular cell adhesion molecule-1 levels in the hearts of the obese rats. Taken together, these results indicate that ezetimibe may improve myocardial remodeling in obese rats by inhibiting inflammation.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Application of calcium chloride-sodium alginate to improve the texture of quick-frozen Heracleum moellendorffii
Autorzy:: Xing, Zhu-jing
Shi, Yan-guo
Yang, Yang
Li, Xiao-mei
Zhao, Lian-cheng
Zhang, Na
Ren, Li-kun
Fu, Yu
Piekoszewski, Wojciech
Bian, Xin
Dostawca treści:: Repozytorium Uniwersytetu Jagiellońskiego

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