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Articles by Rudi Dungani
Total Records ( 6 ) for Rudi Dungani
  Eko Kuswanto , Intan Ahmad and Rudi Dungani
  This review focuses on the study of subterranean termites as structural and building pests especially in Asia Tropical countries. Since wood is one of the oldest, most important and most versatile building materials and still widely utilized by home owners in the region. Subterranean termites have long been a serious pest of wooden construction and they are still causing an important problem in most of tropical and subtropical regions. This termite group is build shelter tubes and nest in the soil or on the sides of trees or building constructions and relies principally on soil for moisture. Subterranean termite damage on building and other wooden structure cause costs associated with the prevention and treatment of termite infestation. Termite control, thus, is a realistic problem not only for human life but also for conservation of natural environment. All countries especially Asian countries are now seeking for the safer chemicals or the more effective methods for termite control. A huge amount of research in recent years has been devoted to termite control technologies to reduce environmental contamination and the risk to human health.
  Andianto , Imam Wahyudi , Totok Kartono Waluyo , Rudi Dungani , A. Hadiyane and M. Fikri Hernandi
  The purpose of this study was to identify the anatomical structure of four Cinnamomum species (Lauraceae) and as comparison using Cryptocarya species in same family. Cinnamomum is the potential medical plants species. Wood anatomical and their tentative identification key need to be done. Anatomical properties can be beneficial tool for developing the Cinnamomum species. Anatomical description was performed by microscopic evaluation. In this study, Cinnamomum burmannii Blume, Cinnamomum xanthoneureum Blume, Cinnamomum zeylanicum Blume, Cinnamomum coriaceum Camm and Cryptocarya aromatica Kosterms species were identified. The Standard of diagnostic and quantitative anatomy used the IAWA list of microscopic features for hardwood identification. The mostly diagnostic features of Cinnamomum species and family of Lauraceae founded are alternate intervessel pits, parenchyma vasicentric and oil cells present. Type of parenchyma and vessel-ray pitting can be used to determine among Cinnamomum species.
  A. Hadiyane , E. Sulistyawati , W.P. Asharina and Rudi Dungani
  We investigated the variability in resin production of a pine stand in Bosscha Observatory Bandung (Indonesia) with the aim to exploit this natural resource in a sustainable way. The potential resin productivity of the pine stand in observatory bosscha area has been known. Therefore, it is necessary to investigate the use of methods (quarre and drill method) in pine resin productivity. The tapping method resulted in differences in resin production in 20-25 year-old trees. The production of extracted with the quarre method was 19.34 g tree–1, meanwhile, the drill method resulted in 32.64 g tree–1. The potential annual resin production in bosscha observatory area were 9.29 and 15.640 t year–1 for quarre and drill method, respectively. The resin production capacity of pine species (P. merkusii Jungh. Et de Vriese) were affected by tree diameter.
  Rudi Dungani , Myrtha Karina , Subyakto , A. Sulaeman , Dede Hermawan and A. Hadiyane
  The agricultural waste fibers are of notable economic and cultural significance all over the world are used for building materials, as a decorative product and as a versatile raw product. Agricultural waste fibers also have significant potential in composite due to its high strength, environmentally friendly nature, low cost, availability and sustainability. The agricultural waste is one of the most important problems that must be resolved for the conservation of global environment. The potential properties of agricultural waste fibers have sparked a lot of research to use these fibers as a material to replace man-made fibers for safe and environmentally friendly product. Agricultural waste is seen as one potential source of renewable energy. Their availability is obtained from oil palm plantations and some other agricultural industry such as rice husk, rice straw, sugarcane, pineapple, banana and coconut. Agricultural waste produces large amounts of biomass that are classified as natural fibers which until now only 10% are used as alternative raw materials for several industry, such as biocomposites, automotive component, biomedical and others.
  Aminudin Sulaeman , Rudi Dungani , Nuruddin Nurudin , Sri Hartati , Tati Karliati , Pingkan Aditiawati , Anne Hadiyane , Yoyo Suhaya and Sulistyono
  The properties of bamboo are unique compared to solid wood and other ligno- and non-lignocellulosic materials especially for manufacturing, designing and construction usages. Recent technological advancements for bamboo processing has proven the positive advantages of bamboo for various interior and exterior applications including furniture, bio-composites, packaging, transport, building and so on. The variability in size, length and diameter of bamboo, its growth and production is a big challenge for their applications as bio-based material along with durability. Since bamboo has a low durability, protection against biotic and abiotic degradation. Since it has vital importance for its longer service life. Preservation and modification treatment of bamboo are therefore regarded as a necessity. Those preservation and modification techniques would ensure the quality and durability of bamboo resulting sustainability and advanced engineering utilization of bamboo. This article reviews the preservation and modification techniques of bamboo which are crucial for advanced products manufacturing and utilization. The article also summarizes the importance of preservation and modification process, its principles and the challenges in quality and durability enhancement of bamboo products. At the end of the article, applications specially the modern one has also been discussed along with its further advancement.
  Anne Hadiyane , Rudi Dungani , Susana Paulina Dewi and Alfi Rumidatul
  Background and Objective: The chemical modification of wood was a chemical reaction between some reactive parts of wood components and a simple chemical reagent to form a covalent bond between both wood and chemical reagent. The utilization of jabon wood has long been done by the people of Indonesia. Jabon wood (Anthocephalus cadamba Miq.) is used for building materials, having quality of wood is not good such as dimensional stability. This study was to find out the effect of treatment of wood with styrene monomer using methyl methacrylamide in change in morphology structure and dimensional change. Materials and Methods: Jabon wood was impregnated with a styrene and methyl methacrylate to a strain of 50%. The changes in cell structure were analyzed to determine the effects of the treatment. Scanning Electron Microscopy (SEM) was used to determine the change in microfibril angle (MFA), preferred orientation of fiber (PO) and wood crystallinity (WC). Samples between the tangential sections were used for density measurement, as determined by the American Standard Testing and Material (ASTM) D2395 method. Furthermore, dimensional stability of the samples were calculated according to standard. Results: The wood density and volumetric swelling coefficient (SC) after modification of jabon wood showed a range of variation. The value of MFA in modified wood decreased significantly compared with the control. Wood modification results in an increase in the crystallinity. Cellulose crystallinity is reduced after impregnation, because the monomer groups interact with the groups in the volume of wood and occupy a larger space in the wood. Conclusion: The impregnation increased the dimensional stability of jabon wood (density and specific gravity).
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