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Wyświetlanie 1-6 z 6
Tytuł:
Indigenous Costume Color of Bangladesh: A Traditional Context for Cultural Revival
Autorzy:
Minhus, S. M.
Hui, Tao
Huie, Liang
Powiązania:
https://bibliotekanauki.pl/articles/2171987.pdf
Data publikacji:
2022
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Biopolimerów i Włókien Chemicznych
Tematy:
Bangladesh
tradition
costume
colour preferences
cultural studies
aesthetics
decoration
Opis:
Traditional elements are generally influenced as the symbols of cultural context that contains the sign of the past. Costume color study of Bangladesh mainly found through psychological thinking that depends on several factors, such as the use of traditional festival elements from history, costume color aesthetics, costume decoration colors of selected geographical regions To analyze costume color firstly, Zaltman Metaphor Elicitation Technique (ZMET) visual analysis method was performed that gives in-depth thoughts on research viewpoints; secondly, statistical analysis was done from research questionaries’ report, and the result has shown that the traditional colors analyzed from the visual analysis are significant. The findings of this analysis would be beneficial in establishing the concept of clothing color in Bangladeshi culture, also presenting an appreciation of the traditional context for the art design learner.
Źródło:
Fibres & Textiles in Eastern Europe; 2022, 2 (151); 123--132
1230-3666
2300-7354
Pojawia się w:
Fibres & Textiles in Eastern Europe
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Combined effects of NQO1 Pro187Ser or SULT1A1 Arg213His polymorphism and smoking on bladder cancer risk: Two meta-analyses
Autorzy:
Wang, Xiao-Chun
Wang, Jian
Tao, Hui-Hui
Zhang, Chao
Xu, Li-Fa
Powiązania:
https://bibliotekanauki.pl/articles/2161894.pdf
Data publikacji:
2017-07-14
Wydawca:
Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:
polymorphisms
meta-analysis
NQO1
urinary bladder neoplasms
smoking
SULT1A1
Opis:
Objectives Objectives: Cigarette smoking is the major risk factor of bladder cancer via exposure to chemical carcinogens. Nicotinamide adenine dinucleotide phosphate (NADP+): quinine oxidoreductase 1 (NQO1) and sulfotransferase 1A1 (SULT1A1) have been reported to involve in the metabolism of polycyclic aromatic hydrocarbons (PAHs) and aromatic amines. Therefore, the risk of bladder cancer (BC) may be influenced by polymorphisms in the genes that modulate metabolic detoxification in particular by interacting with cigarette smoking. Considering the limited power by the individual studies with a relatively small sample size, especially when analyzing the combined effect of polymorphisms in NQO1 and SULT1A1 genes and smoking, these 2 meta-analyses have aimed to clarify the combined effects of them on BC risk by integrating related studies. Material and Methods Two meta-analyses included 1341 cases and 1346 controls concerning NQO1 Pro187Ser and smoking, and 1921 cases and 1882 controls on SULT1A1 Arg213His and smoking were performed. Odds ratios (OR) and 95% confidence intervals (CI) were used for assessing the strength of the association. Results The result has demonstrated that smokers with NQO1 Pro/Ser or Ser/Ser genotypes have a prominent association with the risk of BC as compared with non-smokers with NQO1 Pro/Pro genotype, with OR equal to 3.71 (95% CI: 2.87–4.78, $ \text{p}_\text{heterogeneity} $ = 0.376). Besides, smokers carrying SULT1A1 Arg/Arg genotypes were observed to confer 2.38 fold increased risk of BC (95% CI: 1.44–3.93, $ \text{p}_\text{heterogeneity} $ = 0.001) when compared with non-smokers with SULT1A1 Arg/Arg or His/His genotypes. Conclusions These findings have suggested that the NQO1 Pro187Ser or SULT1A1 Arg213His polymorphism combination with smoking significantly confer susceptibility to BC. Int J Occup Med Environ Health 2017;30(5):791–802
Źródło:
International Journal of Occupational Medicine and Environmental Health; 2017, 30, 5; 791-802
1232-1087
1896-494X
Pojawia się w:
International Journal of Occupational Medicine and Environmental Health
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Relationship between fracture toughness and temperature in epoxy coatings
Odporność powłok epoksydowych na kruche pękanie w funkcji temperatury
Autorzy:
Bo, Z.
Jing-wei, L.
Shu-guang, L.
Yi-hui, L.
Ju-tao, H.
Powiązania:
https://bibliotekanauki.pl/articles/946951.pdf
Data publikacji:
2015
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Chemii Przemysłowej
Tematy:
epoxy resin
fracture toughness
żywica epoksydowa
kruche pękanie
Opis:
The fracture toughness KIC of nine kinds of epoxy coating specimens was tested in the temperature range from 20 to -40 °C, and the influence of temperature on KIC was discussed. The results showed that KIC decreases sharply in unmodified systems but increases for some specimens with 20—50 portions of rubber impact modifier. The elastic modulus test indicated that KIC is closely related with the modulus. Scanning Electron Microscopy images showed that the introduction of impact modifier to epoxy can enlarge the ductile deformation of the fracture surface. As a result, the addition of rubber modifier is a suitable path to improve the anti-cracking performance of epoxy coatings at low temperature due to an increase of fracture toughness and reduction of elastic modulus, which thus can reduce the thermal stress in the process of cooling.
Zbadano odporność na kruche pękanie (KIC) dziewięciu rodzajów powłok epoksydowych w zakresie temperatury -40—20 °C. Wyniki badań wskazują, że wartość KIC powłok epoksydowych bez udziału modyfikatora (polimeru uretanowego DESMOCAP 11) zmniejsza się gwałtownie wraz z obniżeniem temperatury. Dodatek modyfikatora, w ilości 20—50 g/100 g żywicy, zwiększa odporność powłok na kruche pękanie. Na podstawie analizy SEM stwierdzono, że wprowadzenie do żywicy epoksydowej modyfikatora DESMOCAP 11 powoduje zmniejszenie deformacji plastycznej powierzchni powłoki poddanej uderzeniu. Wykazano też, że obecność modyfikatora powoduje zmniejszenie wartości modułu Younga i wpływa korzystnie na odporność powłok epoksydowych na naprężenie termiczne związane z procesem chłodzenia.
Źródło:
Polimery; 2015, 60, 4; 258-263
0032-2725
Pojawia się w:
Polimery
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Research on new process for separation of silicon wafers and glass from decommissioned photovoltaic module
Autorzy:
Zhang, Jian wen
Wang, Hai dong
Zhang, Sheng guang
Liang, Han
Guo, Hui
Tao, Si-yao
Powiązania:
https://bibliotekanauki.pl/articles/2175425.pdf
Data publikacji:
2022
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
crystalline silicon photovoltaic modules
decommissioned photovoltaic modules
silicon
solar cell
tempered glass
vibration separation
Opis:
In view of the disadvantages of the existing electrostatic separation process of decommissioned photovoltaic modules, which can only achieve the separation of fine silicon wafers and glass and has high energy consumption, a new process to solve the efficient dry separation of coarse silicon wafers and glass in decommissioned photovoltaic modules is proposed- the vibration separation method. Based on the theoretical analysis of the vibration separation of flaky silicon wafer and polyhedral glass particles, the effects of feed size, feed amount, vibration voltage, vibration frequency, horizontal inclination angle and longitudinal inclination angle on the product indexes of wafer and glass separation were investigated by single factor experiment. The optimal experimental conditions were obtained as follows: feed particle size +0.83mm, feed amount 0.15 t/h, vibration voltage 190 V, vibration frequency 48 Hz, horizontal inclination Angle 8°, longitudinal inclination Angle 3°. Under this optimized condition, the content of metal Si in the obtained silicon wafer product is 84.47%, the recovery rate of is 83.73%, the content of impurity SiO2 is 1.09%, and the content of SiO2 in the obtained glass product is 65.69%, and the recovery rate is 98.95%, the impurity metal Si content is 0.56%. This study provides a research idea for the industrial separation of silicon wafers and glass from decommissioned photovoltaic modules.
Źródło:
Physicochemical Problems of Mineral Processing; 2022, 58, 6; art. no. 151679
1643-1049
2084-4735
Pojawia się w:
Physicochemical Problems of Mineral Processing
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Theoretical Simulations on Physicochemical Performance of Novel High-energy BHDBT-based Propellants
Autorzy:
Wang, Ke
Huang, Hai-tao
Xu, Hui-xiang
Li, Huan
Li, Jun-qiang
Fan, Xue-zhong
Pang, Wei-qiang
Powiązania:
https://bibliotekanauki.pl/articles/27787879.pdf
Data publikacji:
2021
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
Tematy:
molecular dynamic
BHDBT
migration
mechanical properties
safety
Opis:
Based on Energy Calculation Star program and molecular dynamic method, three designed 2,3-bis(hydroxymethyl)-2,3-dinitro-1,4-butanediol tetranitrate-based (BHDBT) propellants are firstly reported and their physicochemical performance are investigated. Results suggest that compared with HMX-based and CL-20-based propellants, the specific impulses of all BHDBT-based propellants surpass or approximate 280 s, which indicates the latter have the potential to be high-energy propellants. The diffusion coefficient of plasticizers in BHDBT-based propellant decrease as the temperature reduces, and reduce in the order: Bu-NENA > TMETN > BTTN. The densities of all BHDBT-based propellants surpass or approximate 1.7 g/cm3. The comparison of elastic constants, Poisson’s ratios and K/G values indicates that the mechanical properties of three BHDBT-based propellants increase in the order (by plasticizer): Bu-NENA < TMETN < BTTN. The bond length analysis of C–NO2 and O–NO2 bond in BHDBT suggests that the former is the trigger bond in the BHDBT-based propellants, and the safety of BHDBT-based propellants and BHDBT crystal decreases in the order: GAP/BTTN/Al/BHDBT > GAP/Bu-NENA/Al/BHDBT ≈ GAP/TMETN/Al/BHDBT > BHDBT. In conclusion, GAP/BTTN/Al/BHDBT propellant has the potential to be a novel high-energy propellant.
Źródło:
Central European Journal of Energetic Materials; 2021, 18, 1; 5--24
1733-7178
Pojawia się w:
Central European Journal of Energetic Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Phyllodulcin Protects PC12 Cells Against the Injury Induced by Oxygen and Glucose Deprivation-Restoration
Autorzy:
Hu, Chang-Long
Ge, Lu
Tang, Yong
Li, Jie
Wu, Chun-Hui
Hu, Jiang-Hong
Yuan, Jin-Tao
Fan, Yong-Zhong
Powiązania:
https://bibliotekanauki.pl/articles/895391.pdf
Data publikacji:
2019-12-29
Wydawca:
Polskie Towarzystwo Farmaceutyczne
Tematy:
apoptosis
oxidative stress
PC12 cells
phyllodulcin
oxygen and glucose deprivation/restoration
Opis:
Phyllodulcin is a natural coumarin derivative found in Hydrangea macrophylla. To discover effective therapeutics for cerebral ischemia-reperfusion injury, we investigated the protective effects of phyllodulcin on PC12 cells injury induced by oxygenation and glucose deprivation/restoration (OGD/R). As a result, phyllodulcin can improve the cell viability and attenuate the extracellular lactate dehydrogenase release. Meanwhile, phyllodulcin can ameliorate the dysfunction of mitochondria through reducing reactive oxygen species production, decreasing the intracellular calcium level and increasing the mitochondrial membrane potential. ROS-associated OGD/R can induce cell apoptosis through the mitochondrial pathway. Phyllodulcin can inhibit apoptosis of PC12 cells through down-regulation of Caspase-3 and Bax as well as up-regulation of Bcl-2. These results indicate phyllodulcin can protect PC12 cells against the damage induced by OGD/R. This investigation gives promising evidences for the therapy of cerebral ischemia-reperfusion injury.
Źródło:
Acta Poloniae Pharmaceutica - Drug Research; 2019, 76, 6; 1043-1050
0001-6837
2353-5288
Pojawia się w:
Acta Poloniae Pharmaceutica - Drug Research
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-6 z 6

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