http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Some Estimates for Compact Hypersurfaces in Hyperbolic Space
Azam Etemad 대한수학회 2005 대한수학회보 Vol.42 No.1
Let M be a compact hypersurface in hyperbolic space and let Abe the area of M and V be the volume of the compact domainbounded by M. In this paper, we find a lower bound forfrac{A}{V} in two cases, M has constant scalar curvature andM has constant mean curvature.
Bayesian Analysis of Power Function Distribution Using Different Loss Functions
Azam Zaka,Ahmad Saeed Akhter 보안공학연구지원센터 2014 International Journal of Hybrid Information Techno Vol.7 No.6
Power function distribution is a flexible lifetime distribution that may offer a good fit to some failure data sets. In this paper, we obtain Bayesian estimators of the shape parameter of Power function distribution. For the Posterior distribution of this parameter, we consider Exponential Prior, Pareto Prior, Chi-Square Prior, Quasi Prior and Extension of Jeffrey`s Prior. The three loss functions taken up are Squared Error Loss Function (SELF), Quadratic Loss Function (QLF) and Precautionary Loss Function (PLF). The performance of an estimator is assessed on the basis of its relative Posterior risk. Monte Carlo Simulations are used to compare the performance of the estimators. It is discovered that the PLF produces the least Posterior risk when Exponential and Pareto Priors are used. SELF is the best when Chi-Square, Quasi and Extension of Jeffrey`s Priors are used.
Breaking free from patriarchal appropriation of sacred texts : An Islamic feminist critique of Bol
Azam Sarwar,Hong Zeng 이화여자대학교 한국여성연구원 2021 Asian Journal of Women's Studies(AJWS) Vol.27 No.4
This paper is focused on Shoaib Mansoor’s feminist film, Bol (2011), seen as a commentary on religious “absolute explanatory schemes.”1 Arguing that the film demonstrates how Pakistani patriarchy maneuvers sacred texts to construct comforting illusions for women, this paper uses the theory of Islamic Feminism to unravel the politics of religious interpretation and the discursive influence of Islamic fundamentalism. It notes that the protagonist’s inner conflict is a transgressional act and dragoons her into disrupting socioreligious boundaries. The paper also examines the film’s confessional nature, exposing gender inequalities and injustices exercised through self-authorized religious dogma. Viewers of Bol enter a journey not only through the nodi that confront women and plague contemporary enunciations of Islam, but also through heterogeneous forms of iniquitous oppression, systematic bigotry, forced marriage, and endemic violence. The article concludes that by bridging the gulf between Islam and feminism, women’s rights movements can be effective in the Islamic world.
Metal Coating on Ultrafine Polyester Non-woven Fabrics and Their Ageing Properties
Azam Ali,Vijay Baheti,Jiri Militky,Zaman Khan,Guocheng Zhu 한국섬유공학회 2019 Fibers and polymers Vol.20 No.7
The presented research work proposed a simple technique to metalize the milife fabric (very fine thickness) withsilver coating. The polyester fabrics were firstly sensitized with copper, and then silver plating was performed on the surface. The presence of silver over the fabric was observed by scanning electron microscope and respective EDX spectra. Thechange in the electrical conductivity, electromagnetic shielding and joule heating properties were examined for differentelectroplating time. The electrically conductive fabrics showed low electrical resistance with high EMI shielding overfrequency range of 30 MHz to 1.5 GHz. To have an idea about the durability of electrical conductivity under stretch load, the75 cycles of stretch and release were carried out. Furthermore, the heating performance of silver plated fabric was studiedthrough measuring the change in temperature at the surface of the fabric while applying a voltage difference across the fabric. Lastly, the effect of ageing parameters like washing, oxidation and sulfidation were examined on the functional and comfortproperties (i.e. thermal conductivity and stiffness) of conductive fabric.
Individual Fit Testing of Hearing Protection Devices Based on Microphone in Real Ear
Azam Biaban,Mohsen Aliabadi,Rostam Golmohammadi,Maryam Farhadian 한국산업안전보건공단 산업안전보건연구원 2017 Safety and health at work Vol.8 No.4
Labeled noise reduction (NR) data presented by manufacturers are considered one of the main challenging issues for occupational experts in employing hearing protection devices (HPDs). This study aimed to determine the actual NR data of typical HPDs using the objective fit testing method with a microphone in real ear (MIRE) method. Five available commercially earmuff protectors were investigated in 30 workers exposed to reference noise source according to the standard method, ISO 11904-1. Personal attenuation rating (PAR) of the earmuffs was measured based on the MIRE method using a noise dosimeter (SVANTEK, model SV 102). The results showed that means of PAR of the earmuffs are from 49% to 86% of the nominal NR rating. The PAR values of earmuffs when a typical eyewear was worn differed statistically (p < 0.05). It is revealed that a typical safety eyewear can reduce the mean of the PAR value by approximately 2.5?dB. The results also showed that measurements based on the MIRE method resulted in low variability. The variability in NR values between individuals, within individuals, and within earmuffs was not the statistically significant (p > 0.05). This study could provide local individual fit data. Ergonomic aspects of the earmuffs and different levels of users experience and awareness can be considered the main factors affecting individual fitting compared with the laboratory condition for acquiring the labeled NR data. Based on the obtained fit testing results, the field application of MIRE can be employed for complementary studies in real workstations while workers perform their regular work duties.
Azam Kadirhodjaev,Prima Riza Kadavi,이창욱,이사로 한국지질과학협의회 2018 Geosciences Journal Vol.22 No.6
This paper uses a probability-based approach to study the spatial relationships between landslides and their causative factors in the Mingchukur area, Bostanlik districts of Tashkent, Uzbekistan. The approach is based on digital databases and incorporates methods including probability analysis, spatial pattern analysis, and interactive mapping. First, an object-oriented conceptual model for describing landslide events is proposed, and a combined database of landslides and environmental factors is constructed by integrating various databases within a unifying conceptual framework. The frequency ratio probability model and landslide occurrence data are linked for interactive, spatial evaluation of the relationships between landslides and their causative factors. In total, 15 factors were analyzed, divided into topography, hydrology, and geology categories. All analyzed factors were also divided into numerical and categorical types. Numerical factors are continuous and were evaluated according to their R2 values. A landslide susceptibility map was constructed based on conditioning factors and landslide occurrence data using the frequency ratio model. Finally, the map was validated and the accuracy showed the satisfactory value of 83.3%.
Azam Chahardoli,Farshad Qalekhani,Yalda Shokoohinia,Ali Fattahi 한국공업화학회 2022 Journal of Industrial and Engineering Chemistry Vol.111 No.-
Titanium dioxide nanoparticles (TiO2NPs) were produced using a crud flavonoid luteolin (LT) by the greenprocess. Physicochemical characterizations of LT mediated synthesis of TiO2NPs (LT-TiO2NPs) were analyzedby different techniques. The biocompatibility of LT-TiO2NPs was evaluated by assessing their cytotoxicity,inhibition of protein denaturation, hemolysis effects, and membrane stabilization activity. Thesynthesized LT-TiO2NPs exhibited mostly rod-shaped morphology, rutile crystalline structure with lengthabout 33.3–135 nm and width in 16.6–58 nm. Under LT-TiO2NPs treatments, the cell viability of cancercells was decreased in a dose-dependent manner. According to the results, the IC50 values of LT-TiO2NPswere between 12.5–25 lg/mL for A375 and MCF-7 cancer cells, and its value was below 50 lg/mL for skinfibroblast. These NPs also induced intracellular reactive oxygen species (ROS) generation and causedmitochondrial disruption in cancer cells, leading to the induction of intrinsic apoptosis. These biosynthesizedNPs did not show denaturation of bovine serum albumin (BSA) protein and hemolytic or heatinducedhemolytic effects, which confirmed their membrane stabilization activity without damagingred blood cells (RBCs) membrane integrity. Therefore, this research provides valuable results in the caseof green synthesis of LT-TiO2NPs and their specific properties, biocompatibility, and their potential to beused in biomedical fields.
Azam Sharif Mohammed Shafioul,정찬성 대한화학회 2012 Bulletin of the Korean Chemical Society Vol.33 No.2
Xanthorrhizol is a bisabolane type of natural sesquiterpene, the major component of essential oils of Curcuma xanthorrhiza. 2-(3-Methoxy-4-methylphenyl)propan-1-ol and 2-(3-hydroxy-4-methyl phenyl)propan-1-ol could be essential building block for enantioselective synthesis of xanthorrhizol. Enantioselective (c = 53%, E = 80 ± 3) for R-(+)-2-(3-hydroxy-4-methylphenyl) propan-1-ol and (c = 58%, E = 27 ± 1) for R-(+)-2-(3-methoxy-4-methylphenyl) propan-1-ol resolution processes were developed via lipase-catalyzed reaction. We found lipase Aspergillus oryzae (AOL) and Porcine pancreas (PPL) are selective to transesterification and hydrolysis in organic and aqueous phase. Modified demethylated substrate is appropriate for enantioselective hydrolysis reaction without any additives. Enantiopure chiral alcohol was crystallized from ethyl acetate/n-hexane co-solvent system. Gram scale resolved chiral intermediate will facilitate the synthesis of the unnatural S-(+)-xanthorrhizol, the corresponding isomer of the natural one.