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    题名 作者 年代 出处 被引量
1Intelligently Tuned Wavelet Parameters for GPS/INS Error Estimation显示文摘This paper presents a new algorithm for de-noising global positioning system (GPS) and inertial navigation system (INS) data and estimates the INS error using wavelet multi-resolution analysis algorithm (WMRA)-based genetic algorithm (GA) with a well-designed structure appropriate for practical and real time implementations because of its very short training time and elevated accuracy. Different techniques have been implemented to de-noise and estimate the INS and GPS errors. Wavelet de-noising is one of the most exploited techniques that have been recently used to increase the precision and reliability of the integrated GPS/INS navigation system. To ameliorate the WMRA algorithm, GA was exploited to optimize the wavelet parameters so as to determine the best wavelet filter, thresholding selection rule (TSR), and the optimum level of decomposition (LOD). This results in increasing the robustness of the WMRA algorithm to estimate the INS error. The proposed intelligent technique has overcome the drawbacks of the tedious selection for WMRA algorithm parameters. Finally, the proposed method improved the stability and reliability of the estimated INS error using real field test data.Ahmed Mudheher Hasan Khairulmizam Samsudin Abd Rahman Ramli 2011International Journal of Automation and computing2011,8,4:3
2马来西亚大学医学中心角膜溃疡的回顾分析显示文摘目的:分析角膜溃疡的病例分布、危险因素、临床特点、微生物检查及预后结果。方法:对2003-07/2006-04就诊于马来西亚大学医学中心的84例(87眼)患者进行研究,其中1例双眼发病,另1例曾因疱疹性角膜炎复发3次就诊。选入标准包括角膜上皮缺损、角膜基质浸润及炎症。结果:患者84例中有男46例,女38例。主要是马来人(52%)。3个主要的危险因素是角膜接触镜的配戴(47%),眼外伤(25%)及眼表疾病(24%)。在老年患者中,糖尿病(8%)及高血压(9%)是重要的系统性疾病。阳性为25%,而微生物培养阳性为73%。在各危险因素组中,绿脓杆菌是最常见的致病菌,在角膜接触镜配戴者中最高。耐庆大霉素革兰染色阴性菌有2例,耐青霉素表皮葡萄球菌有1例。75%的患者溃疡愈合,遗留角膜混浊。2mo后,54%的患眼最佳矫正视力〉6/18,14%〈3/60。3例患者需要行眼球摘除或剜除术。结论:角膜接触镜配戴和眼外伤是青年人群中主要的可预防性危险因素,相反,眼疾是老年人中不可预防的危险因素。超过60%的培养阳性病例为革兰染色阴性菌。A J Kadir A Samsudin A Fauzi , Z Z Abidin 2008国际眼科杂志2008,8,12:3
3SARS-CoV-2 spike protein binds to bacterial lipopolysaccharide and boosts proinflammatory activity显示文摘There is a link between high lipopolysaccharide(LPS)levels in the blood and the metabolic syndrome,and metabolic syndrome predisposes patients to severe COVID-19.Here,we define an interaction between SARS-CoV-2 spike(S)protein and LPS,leading to aggravated inflammation in vitro and in vivo.Native gel electrophoresis demonstrated that SARS-CoV-2 S protein binds to LPS.Microscale thermophoresis yielded a of〜47 nM for the interaction.Computational modeling and all-atom molecular dynamics simulations further substantiated the experimental results,identifying a main LPS-binding site in SARS-CoV-2 S protein.S protein,when combined with low levels of LPS,boosted nuclear factor-kappa B(NF-k B)activation in monocytic THP-1 cells and cytokine responses in human blood and peripheral blood mononuclear cells,respectively.The in vitro inflammatory response was further validated by employing NF-kB reporter mice and in vivo bioimaging.Dynamic light scattering,transmission electron microscopy,and LPS-FITC analyses demonstrated that S protein modulated the aggregation state of LPS,providing a molecular explanation for the observed boosting effect.Taken together,our results provide an interesting molecular link between excessive inflammation during infection with SARS-CoV-2 and comorbidities involving increased levels of bacterial endotoxins.Ganna Petruk Manoj Puthia Jitka Petrlova Firdaus Samsudin Ann-Charlotte Stromdahl Samuel Cerps Lena Uller Sven Kjellstrom Peter J.Bond Artur Schmidtchen 2020Journal of Molecular Cell Biology2020,12,12:3
4高活性多壁碳纳米管/TiO_2纳米复合物光催化剂光催化降解活性黑5染料(英文)显示文摘A nanocomposite UV-visible light-responsive multiwalled carbon nanotube (MWCNT)/titanium dioxide(TiO2) nanophotocatalyst was successfully synthesized by a modified sol-gel method using titanium isopropoxide and functionalized MWCNTs as the starting precursors. The photocatalytic activity of the TiO2 and the nanohybrid material was investigated through the photodegradation of Reactive Black 5 dye under ultraviolet light irradiation. X-ray diffraction analysis indicated that anatase phase was obtained for both the pure TiO2 and the MWCNT/TiO2 composite, while Raman spectroscopy confirmed the presence of MWCNTs in the composite. Field emission scanning elec-tron microscopy revealed that TiO2 nanoparticles with an individual diameter of about 10–20 nm were coated on the surface of the MWCNTs. The specific surface areas of the samples were found to be 80 and 181 m2/g for the pure TiO2 and MWCNT/TiO2, respectively. As a result, MWCNT/TiO2 showed better photocatalytic performance than pure TiO2 because the high surface area of MWCNTs enabled them to function as good electron acceptors for the retardation of electron-hole pair recombination.Sharifah Bee Abd Hamid Tong LingTan Chin WeiLai Emy Marlina Samsudin 2014催化学报2014,35,12:3
5A Re view of Navigation Systems (Integration and Algo rithms) 显示文摘Hasan A M Samsudin K Ramli A R 2009Australian Journal of Basic and Ap plied Sciences2009,3,2:1
6Active anterior rhinomanometry analysis in normal adult Malays显示文摘SUXINA A H HAMZAH M SAMSUDIN A R 2003J Laryngol Otol2003,117,:1
7A hybrid model of se-organi- zing maps (SOM) and least square support vector machine (LSSVM)for time-series forecasting显示文摘Ismail S Shabri A Samsudin R 2011Expert Systems with Appli- cations2011,38,10:1
8A symmetric image encryp-tion scheme based on combination of nonlinear chaotic maps显示文摘Akhavan A Samsudin A Akhshani A 2011Journal of Franklin Institute2011,348,8:1
9Effect of hae- modialysis on intraocular pressure显示文摘Samsudin A Mimiwati Z Soong T 2010Eye2010,1,:1
10A hybrid model of self-organizing maps (SOM) and least square support vector machine (LSSVM) for time-series forecasting显示文摘ISMAIL S SHABRI A SAMSUDIN R 2011Expert Systems with Applications2011,38,10:1
11Dental anomalies and facial profile abnormality of the non-syndromic cleft lip and palate children in kelantan显示文摘Abd Rahman N Abdullah N Samsudin AIR 2004Malays J Med Sci2004,11,2:1
12Cryptanalysis of 'an improvement over an image encryption method based on total shuffling'显示文摘Akhavan A Samsudin A Akhshani A 2015Optics Communications2015,350,:1
13Hyalinizing clear cell carcinoma of minor salivary gland:case report显示文摘 Othman NH Samsudin AR 2002Bra Dent J2002,13,:1
14River flow time series using least squares support vector machines显示文摘Samsudin R Saad P Shabri A 0,,06:1
15A symmetric image encryption scheme based on combination of nonlinear chaotic maps 显示文摘AKttAVAN A SAMSUDIN A AKHSHANI A 2011Journal of the Franklin Institute2011,348,:1
16A hybrid model of self-organizing maps (SOM) and least square support vector machine (LSSVM) for time-series forecasting显示文摘Shuhaida Ismail Ani Shabri Ruhaidah Samsudin 2011Expert Systems with Applications2011,38,10:1
17A hybrid model of self-organizing maps (SOM) and least square support vector machine (LSSVM) for time-series forecasting 显示文摘Ismail Shuhaida Shabri Ani Samsudin Ruhaidah 2011EXPERT SYS- TEMS WITH APPLICATIONS2011,,10:1
18Array of MIP-based sensor for fruit maturity assessment显示文摘Hawari H F Samsudin N M Ahmad M N 2012Procedia Chemistry2012,6,:1
19Postharvest Shelf Life Extension of Blueberries Using a Biodegradable Package显示文摘ALMENAR Eva SAMSUDIN Hayati 2008Food Chemistry2008,110,:1
20Postharvest shelf life extension of blueberries using a biodegradable package显示文摘ALMENAR E SAMSUDIN H AURAS R 2008Food Chem2008,110,:1
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