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178篇 您的检索式:作者名="Gohar"
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1Recent applications of carbon-based composites in defence industry: A review显示文摘Carbon-based composites, including carbon reinforced composites and carbon-matrix composites, in defence technologies have raised a lot of attention due to its significant physical capabilities, superior thermal and mechanical stability, and its eco-friendly nature. Carbon-based composite which incorporating with various carbonaceous materials such as coke, char, black carbon, activated carbon, carbon fibre and other carbon nanomaterials (carbon nanotubes, carbon nanofibres, graphene and graphite) are the greatest viable option for the development of advanced defence technologies. In this review article the characteristics of carbon-based materials and its composites are discussed for their distinct application in defence sectors;aeronautics, maritime, automotive, electronics, energy storage, electromagnetic interference (EMI) shielding and structures. The origin of carbonaceous materials and its production techniques were discussed. Carbon-based composites have a promising future in defence technology, particularly in chemical sensors, drug delivery agents, radar technologies, and nanocomposites due to their low cost, easy availability, flexibility in design and processing.M.M.Harussani S.M.Sapuan Gohar Nadeem Tahrim Rafin W.Kirubaanand 2022Defence Technology(防务技术)2022,18,8:5
2Detection and characterization of murine colitis and carcinogenesis by molecularly targeted contrast-enhanced ultrasound显示文摘AIM To study mucosal addressin cellular adhesion molecule-1(MAd CAM-1) and vascular endothelial growth factor(VEGF)-targeted contrast enhanced ultrasound(CEUS) for the assessment of murine colitis and carcinogenesis. METHODS C57BL/6 mice were challenged with 3% dextran sodium-sulfate(DSS) for three, six or nine days to study the development of acute colitis. Ultrasound was performed with and without the addition of unspecific contrast agents. MAd CAM-1-targeted contrast agent was used to detect and quantify MAd CAM-1 expression. Inflammatory driven colorectal azoxymethane(AOM)/DSS-induced carcinogenesis was examined on day 42 and 84 using VEGF-targeted contrast agent. Highly specific tissue echogenicity was quantified using specialized software. Sonographic findings were correlated to tissue staining, western blot analysis and immunohistochemistry to quantify the degree of inflammation and stage of carcinogenesis. RESULTS Native ultrasound detected increased general bowel wall thickening that correlated with more progressed and more severe DSS-colitis(healthy mice: 0.3 mm ± 0.03 vs six days DSS: 0.5 mm ± 0.2 vs nine days DSS: 0.6 mm ± 0.2, P < 0.05). Moreover, these sonographic findings correlated well with clinical parameters such as weight loss(r2 = 0.74) and histological damage(r2 = 0.86)(P < 0.01). In acute DSS-induced murine colitis, CEUS targeted against MAd CAM-1 detected and differentiated stages of mild, moderate and severe colitis via calculation of mean pixel contrast intensity in decibel(9.6 d B ± 1.6 vs 12.9 d B ± 1.4 vs 18 d B ± 3.33, P < 0.05). Employing the AOM/DSSinduced carcinogenesis model, tumor development was monitored by CEUS targeted against VEGF and detected a significantly increased echogenicity in tumors as compared to adjacent healthy mucosa(healthy mucosa, 1.6 d B ± 1.4 vs 42 d, 18.2 d B ± 3.3 vs 84 d, 18.6 d B ± 4.9, P < 0.01). Tissue echogenicity strongly correlated with histological analysis and immunohistochemistry findings(VEGF-positive cells in 10 high power fields of healthy mucosa: 1 ± 1.2 vs 42 d after DSS start: 2.4 ± 1.6 vs 84 d after DSS start: 3.5 ± 1.3, P < 0.01). CONCLUSION Molecularly targeted CEUS is a highly specific and noninvasive imaging modality, which characterizes murine intestinal inflammation and carcinogenesis in vivo.Markus Brückner Jan Heidemann Tobias M Nowacki Friederike Cordes Jorg Stypmann Philipp Lenz Faekah Gohar Andreas Lügering Dominik Bettenworth 2017World Journal of Gastroenterology2017,23,16:4
3Multi-wavelength colloidal quantum dot lasers in distributed feedback cavities显示文摘Lasers with multi-wavelength colloidal quantum dots(CQDs)can be achieved using complex grating structures and flexible substrate.The structure contains graduated periods and rectangular cavity fabricated through interference lithography,which acts as the distributed feedback cavity.A layer of densely packed CQD film is deposited on the cavity via spin coating technique.The performance of CQD lasers based on different distributed feedback cavities is investigated.Multi-wavelength lasing is achieved based on a flexible rectangular cavity.Anwer HAYAT Junhua TONG Chao CHEN Lianze NIU Gohar AZIZ Tianrui ZHAI Xinping ZHANG 2020Science China(Information Sciences)2020,63,8:3
4A selective detection of fluoride ions in DMSO by fluorescent and colorimetry competition assays based on 4-bromo-2,6-bis-(hydroxymethyl)phenol显示文摘新奇、很简单的 A 比色并且为有选择地察觉到 F 的 fluorometric 方法?基于 4-bromo-2,6-bis (hydroxymethyl ) 被建议酚(BBHMP ) 哪个是简单、可得到的酉分的受体任何特殊发色团的功能并且与的缺席在阴离子的宽范围上(Cl ? , Br ? ,我 ? , AcO ? , HSO4 ? , NO3 吗?并且 BzO ?) 在 DMSO 媒介。比色的方法为 F 的裸体眼睛的察觉被描述吗?面对 BBHMP。BBHMP 被发现显示出向氟化物熄灭反应在上的选择、敏感的荧光比 Cl ? , Br ? ,我 ? , AcO ? , HSO4 ? , NO3 吗?并且 BzO ? 。Hossein Tavallali Gohar Deilamy-Rad Mahboobe Tabandeh 2011Chinese Chemical Letters2011,22,2:3
5Dynamics of oil price shocks and stock market behavior in Pakistan:evidence from the 2007 financial crisis period显示文摘Background:The aim of this study is to investigate the effect of the oil price and its volatility on the stock market of Pakistan before and after the 2007 financial crisis period.Methods:The analyses are carried out on daily data for the period from July 31,2000 to July 31,2014.This study uses several econometric techniques for the analyses,namely,the Johansen-Juselius cointegration test,generalized autoregressive conditional heteroskedasticity(GARCH)model,exponential generalized autoregressive conditional heteroskedasticity(EGARCH)model,variance decomposition method,and impulse response function.Results:The results of the cointegration method indicate a significant long-run association between stock market and oil prices in the pre-crisis period.The EGARCH model shows that oil price returns have a significant effect on stock market returns in both sub-periods,while the result for the GARCH model is significant only in the postcrisis period.We find a significant effect of oil price volatility on the stock market in both sub-periods from the GARCH model.Furthermore,the EGARCH model shows an asymmetric effect of oil price volatility on the stock market in the pre-crisis period.Variance decomposition shows that stock market variations are mostly explained by selfinnovation.Moreover,the impulse response function results show that oil price shocks affected the stock market adversely in the pre-crisis period but positively in the postcrisis period.Conclusions:This study suggests that economic policymakers and investors should consider the oil price as an important factor affecting stock market returns.Khalil Jebran Shihua Chen Gohar Saeed Alam Zeb 2017Financial Innovation2017,3,1:2
6A new class of monomial bent functions显示文摘Anne Canteaut Pascale Charpin Gohar M. Kyureghyan 2007Finite Fields and Their Applications2007,,1:2
7MHD pressure drop and thermal hydraulic analysis for the 1TER breeding blanket design显示文摘Hua Thanh Q Yousry Gohar 1995Fusion Engineering and Design1995,27,:1
8Improved production of Pseudomonas aeruginosa uricase by optimization of process parameters through statistical experimental designs 显示文摘Abdel-Fattah Y R Saeed H M Gohar Y M 2005Process Biochemistry2005,40,:1
9The Effects of Number of Balls and Preload on Vibrations Associated with Ball Bearings显示文摘Akturk N Uneeb M Gohar R 1997Tribology1997,119,:1
10Tropisetron upregulates cannabinoid CB 1 receptors in cerebellar granule cells: Possible involvement of calcineurin显示文摘Reza Rahimian Ahmad Reza Dehpour Gohar Fakhfouri Mohammad Reza Khorramizadeh Jean-Eric Ghia Mohammad Seyedabadi Antonio Caldarelli Kazem Mousavizadeh Mehdi Forouzandeh Shahram Ejtemaei Mehr 2011Brain Research2011,,:1
11The mapping of elastohydrodynamic con- tacts 显示文摘Gohar R Cameron A 1967ASLE Trans1967,10,:1
12Roller bearings under radial and eccen-tric loads显示文摘Johns P M Gohar R 1981Tribology International1981,14,3:1
13Roller bearing under radial and eccentric loads 显示文摘Johns P M Gohar R 1981Tribology International1981,14,6:1
14An analysis of the information technology outsourcing domain: A social network and Triple helix approach 显示文摘Bobby S Gohar Feroz K 2013Journal of the American Society for Information Science and Technology2013,64,11:1
15Phytochemical investigation of Rumex luminiastrum显示文摘Abd e-FH Gohar A EI-Dahmy S 1994Acta Pharm1994,64,3:1
16Pressure distribution under a ball impacting a thin lubricant layer 显示文摘Safa M M A Gohar R 1986Trans ASME Journal of Tribology1986,108,:1
17A 5 degrees of freedom analysis of vibrations in precision spindles显示文摘AINI R RAHNEJAT H GOHAR R 1990International Journal of Machine Tools & Manufacture1990,30,1:1
18Theoretical and experimental of studies of the oil film in the lubricated point contact 显示文摘A Cameron R Gohar 1966Proc R Soc Lond A1966,291,:1
19On the performance of multi-support spindle-bearing assemblies显示文摘RAHMAN A K AINI R GOHAR R 2002Proceedings of the Institution of Mechanical Engineers:Part K Journal of Multi-Body Dynamics2002,216,2:1
20Interobserver and Intraobserver Reliability and Validity of the Vancouver Classification System of Periprosthetic Femoral Fractures After Hip Arthroplasty显示文摘Gohar A. Naqvi Shakoor A. Baig Nasir Awan 2012The Journal of Arthroplasty2012,,6:1
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