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28 articles for “R. Yunus”
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Research ArticleOpen accessIn the author namesBotanical Composition and Yields of Forages in Natural Pastures Using Principal Component Analysis and Cluster Dendrogram in South Sulawesi, IndonesiaPurnama Isti Khaerani, Yunus Musa, Renny Fatmyah Utamy, Yasuyuki IshiiThis study aims to identify the composition and yields of forages in natural pastures using principal component analysis and cluster dendrogram in Gilireng and Majauleng subdistricts, Wajo regency, South Sulawesi, Indonesia. Pasture plants were collected using 20 randomly sampled quadrats to observe the botanical composition and yields of forages. The collected data regarding legume classification is analyzed by Multivariate Analysis … …OnLine Journal of Biological Sciences, Vol. 24, Issue 4 · 13 Jun 2024 · 5,087 accessesView PDFCite
Research ArticleOpen accessIn the author namesEffect of GA3 and Shading on the Growth and Content of Artemisinin Compound in Leaf of Artemisia (Artemisia annua L.) Grown on the Medium Land of Karanganyar, IndonesiaYuni Kusumodewi, Usman Siswanto, Samanhudi, Ahmad YunusMalaria is still becomes a concern for the government of Indonesia, since this disease has affected many people. Artemisia annua L. is an aromatic plant that destroys malarial parasites, lowers fever and of which the secondary metabolite is artemisinin. Enhanced production of the artemisinin content in the whole plant is desirable. This experiment was conducted in Karanganyar, Indonesia 900m asl. … …American Journal of Applied Sciences, Vol. 14, Issue 10 · 1 Nov 2017 · 8,011 accessesView PDFCite
Research ArticleOpen accessIn the author namesPackaging of Herbal Medicine and its Connection to the Acceptance Rate of the Urban Population Viewed from a Biological, Agricultural, Economic, Business and Communication PerspectiveSusanne Dida, Muchtar YunusThis article discusses the packaging of traditional herbal medicine and its acceptance rate from a biological, agricultural, economic, business and communication perspective. With the many herbal medicines on market in Indonesia and across the global, many questions are emerging about the content, plant type, biological aspects, the economic value and the appropriate information necessary for public knowledge. All this requires … …OnLine Journal of Biological Sciences, Vol. 17, Issue 4 · 13 Oct 2017 · 8,813 accessesView PDFCite
Review ArticleOpen accessIn the author namesMEMS Based RF Energy Harvester for Battery-Less Remote Control: A ReviewNoor Hidayah Mohd Yunus, Jahariah Sampe, Jumril Yunas, Alipah PawiThe paper deals with the growing interest of energy harvesting systems due to great development in many new emerging technologies in electronics and telecommunication. The research focuses particularly about rectenna element comprises of antenna, impedance matching and rectifier. The rectenna is applied under Micro-Electromechanical-System (MEMS) technology design use in Radio Frequency (RF) energy harvester. MEMS is a technology of miniaturization … …American Journal of Applied Sciences, Vol. 14, Issue 2 · 19 Feb 2017 · 9,360 accessesView PDFCite
Research ArticleOpen accessIn the author namesX-Ray Diffraction and X-Ray Fluorescent Analyses of Prehistoric Pottery Shards from Ulu KelantanZuliskandar Ramli, Nik Hassan Shuhaimi Nik Abdul Rahman, Adnan Jusoh, Yunus SaumanProblem statement: X-Ray Diffraction (XRD) and X-Ray Fluorescent (XRF) were used in order to obtain mineralogical and elemental composition of seven pottery shards that have been unearthed during the excavation at Peraling Cave and Cha Cave in Ulu Kelantan, Malaysia. Approach: Peraling Cave and Cha Cave were prehistoric sites dating from 10, 000 BC which were inhabited by Hoabinhian people … …American Journal of Applied Sciences, Vol. 8, Issue 12 · 20 Oct 2011 · 7,753 accessesView PDFCite
Research ArticleOpen accessIn the author namesA Review of Acetol: Application and ProductionMohd Hanif Mohamad, Roila Awang, Wan Md Zin Wan YunusProblem statement: Acetol is used as organic intermediates because it contains both hydroxyl and carbonyl functional groups and mainly use to produce polyols and acrolein. It also widely uses as reduced dyes and skin tanning agent. The commercially used acetol is made from petroleum-based that leads to high cost of production. Approach: This review highlighted applications of acetol and established … …American Journal of Applied Sciences, Vol. 8, Issue 11 · 5 Oct 2011 · 11,836 accessesView PDFCite
Research ArticleOpen accessIn the author namesOptical Properties of Crosslinked Chitosan Thin Film with Glutaraldehyde Using Surface Plasmon Resonance TechniqueYap Wing Fen, W. Mahmood Mat Yunus, Mohd Maarof Moksin et al.Problem statement: The aim of this research is to study the optical properties of crosslinked chitosan thin film with glutaraldehyde using Surface Plasmon Resonance (SPR) technique. Approach: The crosslinked chitosan is synthesized by homogeneous reaction of medium molecular weight chitosan in aqueous acetic acid solution with glutaraldehyde as crosslinking agent. Four different amount of chitosan, i.e., 0.40, 0.50, 0.60 and … …American Journal of Engineering and Applied Sciences, Vol. 4, Issue 1 · 28 Jan 2011 · 9,633 accessesView PDFCite
Research ArticleOpen accessIn the author namesInvestigating the Effect of Powder Type on Improving the Flow in PipelinesHayder A. Abdul Bari, Rosli Bin Mohd Yunus, Tania Suhail HadiProblem statement: In the present investigation, three types of powders are chosen to be investigated as drag reducing agent in aqueous media. The effect of powder type effect will be highlighted in the present study. Approach: Three types of powders were select to be investigating in the present study, which are the sand, aluminum and the coal powders. The reason … …American Journal of Applied Sciences, Vol. 7, Issue 11 · 8 Nov 2010 · 7,398 accessesView PDFCite
Research ArticleOpen accessIn the author namesAluminum Powder and Zwitrionic Surfactants as Drag Reducing Agents in Pipe LinesHayder A. Abdul Bari, Rosli Bin Mohd Yunus, Tania Suhail HadiProblem statement: One of the most power consuming sector in the industry is the liquid transportation through pipelines due to the turbulent mode the liquids are transported with. Drag reducing agents were used as a solution for the pumping power losses in pipelines. One of the inportant drag reducing agents suggested to improve the flow in pipelines are the suspended … …American Journal of Applied Sciences, Vol. 7, Issue 10 · 31 Oct 2010 · 7,299 accessesView PDFCite
Research ArticleOpen accessIn the author namesEffect of Thickness of Tris (8-Hydroxyquinolinato) Aluminum on the Photoluminescence and I-V Characteristic of Organic Light Emitting StructureLim Mei Yee, Wan Mahmood Mat Yunus, Zainal Abidin Talib, Anuar KassimProblem statement: How the thickness of the tris (8-hydroxyquinolinato) Aluminum (Alq3) effect the optical and electrical properties of organic light emitting diode. Approach: The optimum thickness, photoluminescence and current-voltage characteristic of Alq3 layer on N, N-bis (inaphthyl)- N,N-diphenyl-1,1-biphenyl-4,4-diamine (55 nm) layer in Organic Light-Emitting Devices (OLED) structure are reported. Alq3 and NPB organic layers are used as Electron Transport Layer … …American Journal of Applied Sciences, Vol. 7, Issue 9 · 30 Sep 2010 · 8,253 accessesView PDFCite