Báo cáo vật lý: "Resveratrol Derivatives from Stem Bark of Hopea and Their Biological Activity Test" docx

... lượng sinh vật khô và năng lượng sinh vật ướt tùy theo độ ẩm của nguyên liệu gốc. Ngoài ra chúng ta còn có một phương pháp nữa là sản xuất nhiên liệu sinh vật. * Năng lượng sinh vật khô Đốt ... này xét dạng năng lượng mà một vật có được đo nó đang chuyển động. Dạng năng lượng ấy gọi là động năng. Khi một vật có động năng thì vật đó có thể tác dụng lực lên vật khác và lực nà...

Ngày tải lên: 23/06/2013, 01:27

... Trace Elements in Teeth: Implication for Caries 2 teeth has been suggested as being indicative of Pb toxicity. 5,9 Here, we have investigated the importance of the location of trace elements ... carious teeth than in those with healthy teeth. Keywords: ICP-MS, teeth, trace elements, caries, teeth pulps 1. INTRODUCTION Biomonitoring of trace...

Ngày tải lên: 07/08/2014, 14:20

... available in the literature. 10,11 It is reported that the ratio of the silica source to the surfactant ratio and the pH of the synthesis gel can greatly influence the characteristics of the resulting ... amounts of C1 – ions. Therefore, for the partial dehydration of PEO units, the volume of the hydrophilic part of the micelle decreases....

Ngày tải lên: 07/08/2014, 14:20

... structure of RO16 dye. Journal of Physical Science, Vol. 21(2), 29–40, 2010 29 Decolourisation of Reactive Orange 16 by Activated Carbon and Copper Oxide Catalysts Supported by Activated ... Decolourisation of Reactive Orange 16 (RO16) dye by HNO 3 -modified activated carbons (ACs) and a copper oxide catalyst supported by mo...

Ngày tải lên: 07/08/2014, 14:20

... mechanical properties and fracture behaviour of nanocomposites and carbon fibre composites (CFRPs) that contained organoclay in the E matrix. Bozkurt et al. 4 reported that the flexural properties of ... morphological properties of epoxy/glass fiber composites. Polym. Int., 56(4), 512–517. 8. Chow, W. S. (2007). Water absorption of epoxy/glass fiber/organo- montm...

Ngày tải lên: 07/08/2014, 14:20

... Pemotong (Performance of Carbide Cutting Tool when Machining Cast Iron FC 250 in Dry Condition and Using Cutting Fluid) Jaharah A. Ghani * , Mohd Noor Azmi Mohd Rodzi, Noordin Ibrahim dan Che ... above. In dry machining, wear mechanisms were caused by adhesion and micro-attrition at low combination of machining parameters. While at high comb...

Ngày tải lên: 07/08/2014, 14:20

... Pyrolysis Liquid Derived from Oil Palm EFB 120 2. MATERIALS AND METHODS 2.1 Feedstock Preparation EFB used in the experiments were supplied by Malaysian Palm Oil Board. Samples ... bio -oil. Journal of Physical Science, Vol. 17(2),117–129, 2006 117 PYROLYSIS LIQUID DERIVED FROM OIL PALM EMPTY FRUIT BUNCHES N. Abdullah 1*, and A.V. Bridg...

Ngày tải lên: 07/08/2014, 14:20

... function of temperature for washed feedstock of ash content 1.03 mf wt% Bio -Oil from Fast Pyrolysis of Oil Palm Empty Fruit Bunches 72 Table 6: Characteristics of pyrolysis oil compared ... feedstocks gave higher yields of organics at the expense of char and gas. Bio -Oil from Fast Pyrolysis of Oil Palm Empty Fruit Bunches 62 4. EXP...

Ngày tải lên: 07/08/2014, 14:20

... onto the surface of chitin, the intensity of dithizone bands is considerably low as compared to those of chitin. The XRD also suggests that immobilization of dithizone onto the surface of chitin ... The Effect of adsorbent mass on the adsorption of Cd(II) ion by ithizone-immobilized chitin. g 10 àg/ml of Cd(II) ion o a used, resulting in...

Ngày tải lên: 07/08/2014, 14:20

... 79 Preliminary Studies for Production of Fatty Acids from Hydrolysis of Cooking Palm Oil Using C. rugosa Lipase N.A. Serri, A.H. Kamarudin*, S.N. Abdul Rahaman School Of Chemical Engineering, ... conversion of fatty acid. 8 The optimum oil loading is 0.1 g/ml iso-octane. 3.4 Effect of Temperature The conversion of fatty acids prod...

Ngày tải lên: 07/08/2014, 14:20

... Journal of Physical Science, Vol. 19(2), 7–21, 2008 7 Resveratrol Derivatives from Stem Bark of Hopea and Their Biological Activity Test Sri Atun 1* , Nurfina ... that resveratrol derivatives isolated from the stem bark of Hopea consist of dimer, trimer and tetramer resveratrol. Some compounds have biological activity as antioxidant and cytot...

Ngày tải lên: 07/08/2014, 14:20

... Antioxidant activity of benzalacetone and its derivatives. Synthesis of Hydroxyl Radical Scavengers 66 Figure 3: Antioxidant activity of dibenzalacetone and its derivatives. From the graphs ... 0 Journal of Physical Science, Vol. 19(2), 61–68, 2008 61 Synthesis of Hydroxyl Radical Scavengers from Benzalacetone and its Deriv...

Ngày tải lên: 07/08/2014, 14:20

... Journal of Physical Science, Vol. 19(2), 93–104, 2008 93 Textural Characteristics of Activated Carbons Prepared from Oil Palm Shells Activated with ZnCl 2 and Pyrolysis Under Nitrogen and Carbon ... textural characteristics of activated carbon prepared from oil palm shells activated with zinc chloride (ZnCl 2 ) and pyrolysis und...

Ngày tải lên: 07/08/2014, 14:20

... 141 SCREEN-PRINTED POTASSIUM ION SENSOR FABRICATED FROM PHOTOCURABLE AND SELF- PLASTICIZED ACRYLIC FILM Sagir Alva, Lee Yook Heng* and Musa Ahmad School of Chemical Sciences and Food Technology, ... photopolymerization 1. INTRODUCTION Potassium ion sensors have many biomedical applications. They are used in the analysis of blood, and urine potassium a...

Ngày tải lên: 07/08/2014, 14:20

... purposes) Child and Adolescent Psychiatry and Mental Health Open Access Research Baseline values from the electrocardiograms of children and adolescents with ADHD Suyash Prasad* 1,2 , Amanda J Furr 3,4 , ... het- erogeneity that may exist in physiology across ethnic groups [16]. There are a number of strengths and limitations of the meta-analysis. The consider...

Ngày tải lên: 13/08/2014, 18:21