33,323 research outputs found
ب الفقه (MS 13); منطق العشاق دهنامه (MS 14); کنز اللطائف (MS 15); تحفه فی اللغه (MS 16); ترسل منشآت المنصوريه (MS 17); دهنامه روضة المحبين(MS 18); كفاية الاسلام (MS 19); رسالۀ فرض و سنت بمذهب امام الاعظم (MS 20); رسالۀ صرف عربی (MS 21); خسرو و شیرین (MS 22); ترکیب بند (MS 23); ترکیب بند (MS 24); مرآت الصلاح (MS 25); داستان امیر احمد و مهستی (MS 26); داستان منصور خلاج (MS 27); دهنامه روضة المحبين (MS 28); حکایۀ شیخ صنعان (MS 29); دهنامۀ سعد و همایون (MS 30); قصیدۀ نونیه (MS 31)
No full textBu, birbirinden farklı 13 ayrı yazmanın bir araya getirilip ciltlenmesiyle oluşturulmuştur (Yazma numaraları : MS 13, MS 14, MS 15, MS 16, MS 17, MS 18, MS 19, MS 20, MS 21, MS 22, MS 23, MS 24, MS 25, MS 26, MS 27, MS 28, MS 29, MS 30, MS 31). İki yazma (MS 13 ve MS 14) Arapça ve Farsça olmak üzere iki dilde yazılmışken, diğer yazmalar Farsça yazılmıştır. MS 13 : Ia’da kitabın Mehmed Emin’e ait olduğunu gösteren kayıt ve mühür ile 1209 tarihli Abdulfettah’a ait istishab kaydı; IIa-b’de harekeli nesihle Arapça dua; 1a’da Mehmed Emin ve İsmail adlarına temlik kayıtları. Eserin girişinde kitabın, “müdâyenât”, “mübaya’ât”, “münâkahât” ve “evkâf ve tevliyet” başlıklı dört kısımdan oluştuğu yazılıdır. Fakat son kısım eksiktir. Kitabın başında veya içinde adına ve yazarına ait hiçbir bilgi yoktur. Mevcut kaynaklardan da kitabın adını ve kim tarafından yazıldığını tespit etmek mümkün olmamıştır. Arapça yazılan satırların arasına kırmızı mürekkeple Farsça çeviri eklenmiştir. [Muhtemelen tamir sırasında 31a-43b arasındaki forma ters ciltlenmiş, dolayısıyla 30b’nin devamı 43b’den sonra geliyor ve eser 31a yaprağında son buluyor]. Farklı eserleri ihtiva eden büyük bir mecmua niteliğindeki kitapta yer alan diğer es
Optical frequency-domain reflectometry based on wavelength-swept mode-locked fiber laser
No full textWe demonstrate a novel optical frequency-domain reflectometry system with compactness and short measurement time based on the use of a wavelength-swept mode-locked fiber laser. The optical source uses an intracavity tunable Fabry-Perot filter as a tuning element. The fiber laser sweeps 20 nm in less than 10 ms. Spatial resolution of 100 pm and total measurement range of several centimeters are demonstrated.The authors would like to thank Dr. H. K. Kim and Dr. S. H.
Yun for support and valuable discussions
Two-way frequency-conversion phase measurement for high-speed and high-resolution heterodyne interferometry
No full textHe-Ne heterodyne laser interferometers are widely used as standard tools for displacement metrology to produce high-resolution measurements. However, such systems use specially designed complex and costly high-speed electronics. In this paper, we present a new unsophisticated method of phase measurement that achieves a resolution of 0.15 nm using simple electronics for a target speed of 2.4 ms(-1). The method adopts a frequency-conversion technique to lower the original beat frequency to 100 kHz by mixing it with a stable reference signal generated from a phase-locked loop. At the same time, to avoid the accompanying unwanted decrease in the maximum measurable speed caused by the lowered beat frequency, a two-way frequency conversion and a special fringe-counting method are combined to perform the required phase unwrapping, using widely available programmable digital gates. This allows velocity measurements up to the limit achievable using the original beat frequency
Effect of specimen size on flexural compressive strength of reinforced concrete members
No full textIt is important to consider the effect of member size when estimating the ultimate strength of a concrete flexural member, because the strength always decreases with an increase of member size except for well-reinforced members. Research conducted previously in this area include axial compressive strength size effect on cylindrical specimens and flexural compressive strength size effect on C-shaped specimens, notched cylindrical specimens, and axially loaded double cantilever beam (DCB) specimens. Since the most widely used flexural member type is reinforced concrete (RC) beams, it is logical to extend the study of flexural compressive strength size effect to flexural loaded RC beam members. Previously, several researchers have reported from their studies that flexural compressive strength size effect does not exist. However, the analyses show that the specimens used for the study had limited size variation and the neutral axis depth variations were too similar to show distinct size effect. Therefore, this study enforced distinct neutral axis depth variations for all of the tested specimens. In this study, the size effect of a RC beam was experimentally investigated. For this purpose, a series of beam specimens subjected to four-point loading was tested. RC beams with three different effective depths were tested to investigate the size effect. The shear-span to depth ratio and the thickness of the specimens were kept constant to eliminate the out-of-plane size effect. The test results are curve fitted using Levenberg-Marquardt's Least Square Method (LSM) to obtain parameters for Modified Size Effect Law (MSEL) by Kim et al. The analysis results show that the flexural compression strength and ultimate strain decrease as the specimen size increases. Comparisons with existing research results considering the depth of neutral axis were also performed. They also show that the current strength criteria-based design practice should be reviewed to include member size effect. (C) 2006 Elsevier Ltd, All rights reserved
Kim Chua
No full textEducation:
NUS, SG- Bachelor\u27s in Arts and Social Sciences
SIM University, SG- Bachelor\u27s in English Language and Communication Studies
University Of York, UK- Master\u27s in Educational Studies
RSIS, NTU- Master\u27s in Asian Studies
University of Bath, UK- Doctorate Degree in Educational Studies ( Ongoing)
Awards and Experiences:
Awards-
Recipient of the UON (UNIVERSITY OF NEWCASTLE) SINGAPORE EXCELLENCE TEACHING AWARD FOR SESSIONAL ACADEMIC STAFF(FACULTY OF SCIENCE AND IT)
Ms. Kim-Chua has been involved in higher education since 2007.
She has been working at Embry-Riddle Aeronautical University (Asia) since 2013. She teaches subjects ranging from Introduction to Composition, English Composition, Speech and Business Communication.
Prior to joining ERAU, Ms. Kim-Chua worked for 7 years at a Polytechnic in Singapore where she taught the language and communication modules to students across different disciplines ranging from Engineering, Design, Maritime Business as well as Life Sciences.
Ms. Kim-Chua has worked and lived in various countries -- from Vietnam, HongKong to China (PRC).
Interests: Her research interests include career readiness, lifelong learning, adult education and education leadership and policy particularly with an Asian perspective.
In particular, she is especially keen to explore and conduct research that looks at analyzing, explaining and understanding the state of higher education in terms of its economic, social and cultural prerequisites as well as its greater significance for people, organizations and society. Education M.A. - Master of Arts in Teaching English to Young Learners, University of Yorkhttps://commons.erau.edu/aviasian-bios/1024/thumbnail.jp
Test for low-dimensional determinism in electroencephalograms
No full textWe tested low-dimensional determinism in an electroencephalogram (EEG), based on the fact that smoothness (continuity) on an embedded phase space is enough to imply determinism within time series. A modified version of the method developed by Salvino and Cawley [Phys. Rev. Lett. 73, 1091 (1994)] was used. In our method, we chose a box randomly and then estimated the mean directional element in the box containing the d+1 data points, where d is the embedding dimension. The global average for the mean local directional elements over the boxes, W, is a measure for smoothness. The nonlinear noise reduction method developed by Sauer [Physica D 58, 193 (1992)] is then applied to the EEG. We also compared the results for the EEG with those for its surrogate data. We found that the W values for the noise-reduced EEG had stable values around 0.35, which means that the EEG is not a low-dimensional deterministic signal. However, this method may not be applicable to the time series generated from high-dimensional deterministic systems, We cannot exclude the possibility that the determinism in the EEG may be too high-dimensional to be detected with current methods. [S1063-651X(99)05207-1].We thank Dr. Dae-jin Kim and J. Lee at St. Mary’s Hospital
in Taejon for experimental help during this study
Parasin I, an antimicrobial peptide derived from histone H2A in the catfish, Parasilurus asotus
No full textIn response to epidermal injury, Pavasilurus asotus, a catfish, secreted a strong antimicrobial peptide into the epithelial mucosal layer. The molecular mass of the antimicrobial peptide, named parasin I, was 2000.4 Die, as determined by matrix-associated laser desorption ionization mass spectrometry. The complete amino acid sequence of parasin I, which was determined by automated Edman degradation, was Lys-Gly-Arg-Gly-Lys-Gln-Gly-Gly-Lys-Val-Arg-Ala-Lys-Ala-Lys-Thr-Arg-Ser-Ser. Eighteen of the 19 residues ia parasin I sere identical to the N-terminal of buforin I, ct 39-residue antimicrobial peptide derived from the N-terminal of toad histone H2A [Kim et al, (1996) Biochem. Biophys. Res. Commun. 229, 381-387], which implies that parasin I was cleaved off from the N-terminal of catfish histone H2A, Parasin I showed strong antimicrobial activity, about 12-100 times more potent than magainin 2, against a wide spectrum of microorganisms, without any hemolytic activity, Circular dichroism spectra of parasin I indicated a structural content of 11% alpha-helix, 33% beta-sheet, and 56% random coils. The beta-sheet axial projection diagram of parasin I showed an amphipathic structure. Our results indicate that the catfish may produce parasin I from its histone H2A by a specific protease upon injury to protect against invasion by microorganisms. (C) 1998 Federation of European Biochemical Societies
Two-longitudinal-mode He-Ne laser for heterodyne interferometers to measure displacement
No full textWe propose a new configuration for a high-resolution heterodyne interferometer that employs a two-longitudinal-mode He-Ne laser with an intermode beat frequency of 600-1000 MHz. The high beat frequency is downconverted to 5 MHz such that the phase change of the interferometer output is precisely measured with a displacement resolution of 0.1 nm. A thermal control scheme is adopted to stabilize the cavity length of the He-Ne plasma tube such that a frequency stability of 2 parts in 109 is obtained by suppression of frequency drifts caused by the phenomena of frequency pulling and polarization anisotropy. This two-longitudinal-mode He-Ne laser yields a high output power of 2.0 mW, which permits multiple measurements of as many as 10 machine axes simultaneously. (C) 2002 Optical Society of America
Enzymatic deglycosylation of glycoproteins
No full textRecombinant protein expression using eukaryotic expression systems has certain advantages, such as addition of posttranslational modifications that help protein stability and activity. Asparagine-linked sugar attachment is one of the most common posttranslation modifications. However, sugar modification can impede the growth of high-quality protein crystals for structural studies using X-ray crystallography. To overcome this problem, consensus sites of N-linked attachments can be mutated into other similar residues, such as aspartic acid. Alternatively, enzymatic deglycosylation can be used to remove sugars. Peptide-N-Glycosidase F (PNGase F; EC 3.5.1.52) and Endoglycosidase H (Endo H; EC 3.2.1.96) are the most popular enzymes for this purpose.116sciescopu
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