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| 1 | Mechanical properties of squeeze-cast Al-7Si-0.3Mg alloys with Sc-modified Fe-rich intermetallic compounds显示文摘Iron (Fe) has a low solid solubility in aluminum(Al), and it usually forms Fe-rich intermetallic compounds.Scandium (Sc) is an element that can act as a grain refiner,modify the eutectic silicon and change the morphology of Fe-rich intermetallic compounds at the same time. The present work was conducted to study the effect of Sc on the mechanical properties of Al-7Si-0.3Mg. The alloy was prepared by squeeze casting at two levels of Fe (0.2 and 0.4 wt%) and three levels of Sc (0 wt%, 0.2 wt% and 0.4 wt%). Sc is found to increase the mechanical properties of the alloy, including its hardness, yield strength and ultimate tensile strength. At 0.2 wt%Fe, adding Sc increases the strength while maintaining good elongation.At 0.4 wt%Fe, adding Sc increases the strength but decreases the elongation slightly. The distributions and morphologies of intermetallic compounds and eutectic silicon affect the elongation. Both Fe-rich intermetallic compounds and Sc-rich intermetallic compounds act as crack initiation sites. The 0.2 wt% Fe+0.2 wt% Sc alloy has the lowest amount of these intermetallic compounds,and eutectic silicon is small and fibrous. So, it has the highest elongation. | Kittisak Chanyathunyaroj Ussadawut Patakham Sindo Kou Chaowalit Limmaneevichitr | 2018 | Rare Metals2018,37,9: | 8 |
| 2 | Quantitative analysis of γ-oryzanol content in cold pressed rice bran oil by TLC-image analysis method显示文摘Objective:To develop and validate an image analysis method for quantitative analysis ofγ-oryzanol in cold pressed rice bran oil.Methods:TLC-densitometric and TLC-image analysis methods were developed,validated,and used for quantitative analysis of γ-oryzanol in cold pressed rice bran oil.The results obtained by these two different quantification methods were compared by paired t-test.Results:Both assays provided good linearity,accuracy,reproducibility and selectivity for determination of γ-oryzanol.Conclusions:The TLC-densitomelric and TLC-image analysis methods providett a similar reproducibility,accuracy and selectivity for the quantitative determination of γ-oryzanol in cold pressed rice bran oil.A statistical comparison of the quantitative determinations of γ-oryzanol in samples did not show any statistically significant difference between TLC-densitometric and TLC-image analysis methods.As both methods were found to be equal,they therefore can be used for the determination of γ-oryzanol in cold pressed rice bran oil. | Apirak Sakunpak Jirapornchai Suksaeree Chaowalit Monton Pathamaporn Pathompak Krisana Kraisintu | 2014 | Asian Pacific Journal of Tropical Biomedicine2014,4,2: | 7 |
| 3 | Effect of Sc on Precipitation Hardening of AlSi6Mg Alloy显示文摘AISi6Mg 变硬的降水上的 Sc 的效果是 studied.Zr 以前被报导它增加了 Sc 的有效性在做在 Zr 因此也是的许多区域的铝在这研究和 Sc 使用了。Sc 和 Zr 增加的不同层次在在永久模子扔前被加到 AISi6Mg。样品是降水在为张力的力量和坚硬测试前在不同老化温度并且在各种各样的老化时间变硬。进 AI6SiMg 的 Sc 增加能改变它的反应变老变硬,这被发现。有 Zr 的 Sc 和 Sc 的增加为两变老的温度增加了收益力量和坚硬。另外, Sc 被发现修改最容易溶解的 Si 获得含纤维的形态学。最容易溶解的硅修正上的 Sc 的这效果以前从来没被报导过。 | Wattanachai Prukkanon Satit Chanpum Chaowalit Limmaneevichitr | 2008 | Journal of Materials Science & Technology2008,24,1: | 4 |
| 4 | Effect of Process Parameters on Morphology and Grain Refinement Efficiency of TiAl_3 and TiB_2 in Alumimum Casting显示文摘这篇论文在生产 Al-5Ti-1B 谷物论述不同进程参数的效果更精制, i.e.various 序列和反应时间,在铝铸造物的谷物精炼效率上。不同进程参数在谷物导致了不同形态学和 TiAl3 和 TiB2 的尺寸分发,这被发现更精制。实验被把 KBF4 和 K2TiFe 加到熔融的铝执行。融化的温度在一个电的抵抗炉子在 800 ° C 被控制。KBF4 和 K2TiF6 增加的三个不同序列被使用,即,在 K2TiF6 前的增加的 KBF4,在 KBF4 前增加 K2TiF4 并且在增加熔融的铝前混合 KBF4 和 K2TiF6。在 1 min, 30 min 和 60 min 的三不同成立时间被使用。结果证明形态学和尺寸分发的重要差别都没被改变三个不同序列发现。而,不同成立时间在形态学和尺寸分发提供了主要差别,它从在比 30 min 长导致更大的粒子尺寸和反应时间是的 TiAl3 和 TiB2.If 的尺寸分发的更宽的范围的粒子之间的散开和凝块是技术上能预期的, TiAl3 和 TiB2 的形态学变得太大。如果反应时间是太短的,在到形式的 TiAl3 和 TiB2 之间的更少的反应将被获得。为谷物精炼效率,它在与 min 导致了最好的谷物精炼效率的 30 的一成立时间增加熔融的铝前被发现那混合 KBF4 和 K2TiF6, | Prapas Kunnam Chaowalit Limmaneevichitr | 2008 | Journal of Materials Science & Technology2008,24,1: | 3 |
| 5 | Alkyl phenols from the wood of Averrhoa carambola显示文摘二烷基酚,也就是 2,5-dimethoxy-3-undecylphenol (1 ) 和 5-methoxy-3-undecylphenol (2 ) ,从 Averrhoa 杨桃的木头和二已知的 benzoquinones, 5-O-methylembelin (3 ) 和 2-dehydroxy-5-O-methylembelin (4 ) 被孤立。他们的结构根据分光镜的方法(1D 和 2D NMR ) 被阐明。 | Suda Chakthong Chumpunut Chiraphan Chalermkwun Jundee Prapagorn Chaowalit Supayang Piyawan Voravuthikunchai | 2010 | Chinese Chemical Letters2010,21,9: | 2 |
| 6 | Epicardial adipose tissue:friendly companion or hazardous neighbour for adjacent coronary arteries显示文摘 | Chaowalit N Lopez-Jimenez F | 2008 | Eur Heart J2008,29,6: | 1 |
| 7 | Subepicardial adipose tissue and the presence and severity of coronary artery disease显示文摘 | Nithima Chaowalit Virend K. Somers Patricia A. Pellikka Charanjit S. Rihal Francisco Lopez-Jimenez | 2005 | Atherosclerosis2005,,2: | 1 |
| 8 | Optimization of Caesalpinia sappan L. heartwood extraction procedure to obtain the highest content of brazilin and greatest antibacterial activity显示文摘Objective: The objective of the work was to optimize the extraction conditions of Caesalpinia sappan L.heartwood in order to maximize the brazilin content and antibacterial activity of the extract.Methods: Two independent factors were studied: extraction temperature(45–95 °C) and extraction time(30–60 min). In addition, five dependent factors were monitored, including extraction yield, brazilin content, and clear zones against Staphylococcus aureus TISTR 1466, Staphylococcus epidermidis TISTR 518 and Propionibacterium acnes DMST 14961. The brazilin content was quantified by high-performance liquid chromatography and antibacterial activity was determined by disk diffusion assay.Results: The high temperature provided high total extract yield as well as brazilin content, while extraction time had little effect on yield or brazilin content. Extraction time had a positive effect, while extraction temperature had little effect on clear zone against S. aureus. The largest clear zone against S. epidermidis was achieved at low extraction temperature and long extraction time. Conversely, short extraction time and high extraction temperature provided the largest clear zone against P. acnes. The optimal conditions providing the highest brazilin content was an extraction temperature and extraction time of 95 °C and 30 min, respectively.The same optimal conditions also provided the simultaneous greatest antibacterial activity against the three bacteria. Modeled optimal conditions were validated be conducting extraction using these values. Yield and antibacterial activity of the resulting extract demonstrated that the model had a low percentage error.Conclusion: The optimal condition will be used as a standard condition for extraction of C. sappan heartwood to maximize brazilin content and antibacterial activity. | Sukanya Settharaksa Chaowalit Monton Laksana Charoenchai | 2019 | Journal of Integrative Medicine2019,17,5: | 1 |
| 9 | Diagnostic value of pleural fluid adenosine deaminase in tuberculous pleuritis with reference to HIV coinfection and a Bayesian analysis显示文摘 | Riantawan P Chaowalit P Wongsangiem M | 1999 | Chest1999,116,1: | 1 |
| 10 | Modification of hypoeutectic Al–Si alloys with scandium显示文摘 | Wattanachai Prukkanon Nakorn Srisukhumbowornchai Chaowalit Limmaneevichitr | 2008 | Journal of Alloys and Compounds2008,,1: | 1 |
| 11 | Generation of human single-chain variable fragment antibodies specific to dengue virus non-structural protein 1 that interfere with the virus infectious cycle显示文摘 | Poungpair O Bangphoomi K Chaowalit P | 2014 | MAbs2014,6,2: | 1 |
| 12 | Metallurgical structure of A356 aluminum alloy solidified under mechanical vibration:An investigation of alternative semi-solid casting routes显示文摘 | Chaowalit L Songwid P Julathep K | 2009 | Materials and Design2009,30,: | 1 |
| 13 | Evaluation of blank film forming polymeric dispersions based on Eudragit RL 30D and RS30D for transdermal drug delivery显示文摘The first approved transdermal drug delivery system in the United States in 1979 is a scopolamine patch for treatment of motion sickness. Transdermal drug delivery system has many advantages over oral route such as it is useful for vomiting and unconscious patients. It can avoid first pass metabolism by the liver. It is non-invasive way and self-administered system compared to injections. The film forming polymeric solutions are a novel transdermal drug delivery system. This system consists of an active drug, film forming polymer, plasticizer. | Chaowalit Monton Jirapornchai Suksaeree | 2016 | Asian Journal of Pharmaceutical Sciences2016,11,1: | 1 |
| 14 | Modification ofhypoeutectic AI-Si alloys with scandium 显示文摘 | Wattanachai Prukkanon Nakom Srisukhumbowomchai Chaowalit Limmaneevichitr | 2009 | Journal of Alloys and Compounds2009,477,12: | 1 |
| 15 | Do knowledge and clinical experi- ence have specific roles in perceived clinical skills for tsunami care a- mong nurses in Banda Aceh, Indonesia 显示文摘 | Husna C Hatthakit U Chaowalit A | 2011 | Aust Emerg Nurs J2011,14,2: | 1 |
| 16 | Echocardiographic and clinical characteristics of pulmonary hypertension complicating pulmonary Langerhans cell histiocytosis显示文摘 | Chaowalit N Pellikka PA Decker PA | | 0,,10: | 1 |
| 17 | Subepicardial adi- pose tissue and the presence and severity of coronary artery disease 显示文摘 | Chaowalit N Somers V K Pellikka P A | 2006 | Atheroselerosis2006,186,2: | 1 |
| 18 | Diagnostic value of pleural fluid adenosine deaminase in tuberculous pleuritis with reference to HIV coinfection and a Bayesian analysis 显示文摘 | Chaowalit P Wongsangiem m | 1999 | Chest1999,116,: | 1 |
| 19 | Subepicardial adipose tissue and the presence and severity of coronary artery disease 显示文摘 | Chaowalit N Somers VK Pellikka PA | 2006 | Atherosclerosis2006,186,2: | 1 |
| 20 | Subepicardial adipose tissue and the presence and severity of coronary artery disease显示文摘 | Chaowalit N Somers VK Pellikka PA | 2006 | Atherosclerosis2006,186,2: | 1 |