screw pine
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2021 ◽  
Author(s):  
Martin Thangaraj Gerald Arul Selvan ◽  
Joseph Selvi Binoj ◽  
Jacob Thambi Evans Jebeen Moses ◽  
Nara Prem Sai ◽  
Suchart Siengchin ◽  
...  

2021 ◽  
Author(s):  
Nick Pasiecznik

Abstract A datasheet on Pandanus tectorius covering, as an economically important tree, its taxonomy, importance, silviculture, distribution, biology and ecology, uses, products and pests.


2021 ◽  
Vol 16 (1) ◽  
pp. 012-017
Author(s):  
Sudalai Raja A ◽  
Jebakani D

Bio-composites are used in many engineering applications due to various desirable properties that they offer such as light weight, low cost, bio-degradable and bio-compatible. Bio-composites are used in many industries such as automotive, sporting goods, marine, electrical and household appliances. Kenaf, jute, banana, flux is used as fibers. The mechanical properties are evaluated by appropriate testing methods. The strength of material is important to each material so that bio-material to be evaluated by mechanical testing methods. In this study an attempt is made to prepare natural resin with neem oil and Thennamarakudi oil and to fabricate Bio-composite with fish shell and screw pine fiber as reinforcement and test for its mechanical properties such as tensile, Impact and Flexural. The pure resin samples have tensile and flexible properties. After taken testing. the neem oil-based biomaterial flexibility is higher than the oil-based biomaterial. The stiffness is higher in Tk oil-based biomaterial. The result is expected from the biomaterial as eco-friendly material and applicable for medical field as biocompatible


2021 ◽  
Vol 16 (1) ◽  
pp. 024-028
Author(s):  
Nibesh A G ◽  
Jebakani D

Composites Materials- Aircraft, Ship, Automobile. Their most attractive properties are the high strength-to-weight ratio. Polymer composites are used because overall properties of the composites are superior to those of the individual polymers. The natural bio-resin are prepared from neem and Thennamarakudi oil with the concept of polyester resin. The reinforcement is screw pine fibre and fish scale fibre. The aim of this experimental study has targeted to investigate the vibration damping, sound absorption and moisture absorption of reinforced polyester resin polymer composites. The specimen fabricated are naturally bio-degradable and eco-friendly to environment because the resin and fibre are natural ingredients. Mainly to avoid all types of pollution. The laminated specimens were fabricate using hand lay-up technique and the specimens are subjected to the investigated as per the ASTM standards. The Moisture absorption test, Vibration test, Acoustics test were carried out on the laminated specimen to determine their properties.


Author(s):  
Martin W. Callmander ◽  
Robert Vogt ◽  
Anna Donatelli ◽  
Sven Buerki ◽  
Chiara Nepi
Keyword(s):  

2020 ◽  
pp. 307-322
Author(s):  
Keith Berry

In past investigations the pattern of differential survival of plants across the K/Pg boundary has been viewed as incompatible with severe asteroid impact winter scenarios (i.e., an impact winter lasting more than a few months), particularly the enigmatic survival of coryphoid palms and Pandanus (screw pine). Stateof- the-art climate models based on soot, sulfate and nano-sized dust aerosols predict a global impact winter that drastically reduced precipitation and resulted in a transient period of total darkness and permafrost conditions. This suggests that the plants most likely to have been affected by the global mass-extinction event were tropical phanerophytes that produce recalcitrant seeds, which by definition are desiccation-intolerant, survive less than a year, and cannot survive freezing. However, this hypothesis has never been tested. In this study I sampled over 100 plant species from the global fossil record that have a high probability of having produced either recalcitrant seeds/disseminules (n1 = 58) or orthodox seeds (n2 = 59), based on their phylogenetic relationships with extant taxa that either are monomorphic for these traits or specifically exhibit a genetic marker for abscisic acid inhibition associated with seed dormancy and recalcitrance. A one-tailed z-test for the difference between two proportions revealed that plant taxa with a high probability of having produced recalcitrant seeds had significantly lower survivorship than plant taxa with a high probability of having produced orthodox seeds (p < 0.0001). Based on these data, it can be concluded that plants which formed a frost-tolerant seed bank during the latest Maastrichtian were significantly more likely to survive the K/Pg impact winter than plants which did not (including palms). These data clearly indicate that the K/Pg impact winter probably lasted longer than a year and that it selected for seed-based traits that effectively sorted correlated functional traits of mature plants (i.e., leaf physiognomic features). This novel hypothesis stands as an alternative to J.A. Wolfe’s classic hypothesis that a mild K/Pg impact winter selected for fast-growing angiosperms with deciduous leaves and did not affect the plant communities of the Southern Hemisphere. Potential mechanisms for the rare survival of tropical, recalcitrant-seeded plants are discussed.


Author(s):  
Ammu R. ◽  
Jagatheesh M. ◽  
Jayasri K. ◽  
Sharmila A. ◽  
Jesima M.

Textiles are enforced fragment of human life. A new textile called medical textile which is the combination of medical science and textile technology. It causes harmful in several ways such as numerous skin disease and it affects all ages from neonates. Maintaining healthy skin is a needed thing for a healthy body. So the maintenance with natural treatment is cheap and claimed to be safe. For the production of new synthetic agents with the help of suitable raw material. In this system we are using Natural herbs like neem charcoal, screw pine flower, Curcuma longo particles and these were prepared with 100% cotton fabric. It is mainly used in kids garment for the application of antimicrobial finishing to protect chickenpox. This study makes way for usage of eco-friendly and dermatologically safe product produced using with natural herbs.


2020 ◽  
Vol 4 (3) ◽  
pp. 314
Author(s):  
Husna Amalya Melati ◽  
Metasari Kartika ◽  
Yudithya Ratih

PPPUD of Product Diversification of Corak Insang Weaving at Kampung Wisata Tenun KhatulistiwaAbstact. Since established on 16th of November 2018 as a woven tourist village area, the number of visitors in Gang Sambas Jaya, Batu Layang sub district, Pontianak City has increased, but the products provided were only woven clothes and scarves with a relatively high price, thus not all visitors are interested and can afford the products. The lack of variety of the woven derivative products with various price ranges made the income of woven craftsmen was not optimal. The community service program by PPPUD (Development Program of Regional Featured Product) team in collaboration with non-governmental group (KSM) aimed to diversify the gill-pattern woven products (as known as corak insang) in order to expand the market target and to meet visitors’ demand. Community service activities included training to create a corak insang ornament pattern on screw pine-based clutches, making half-moon bags model of handbags, sewing clothes – starting from making its basic pattern, breaking patterns, cutting materials and sewing clothes, and making a pouch/pencil case using the remaining woven fabrics. The activity result showed that the partners acquired skills in producing derivative products of woven corak insang. A total of 5 people acquired skills in making half-moon bag model of handbags, 8 people acquired skills in making woven corak insang ornament pattern on screw-pine based clutches, 10 people acquired skills in making basic pattern, breaking pattern, and sewing clothes, and 15 people acquired skills in creating pouch and pencil case. It shows that more than 80% of participants have been succeeded in diversifying corak Insang woven products.Keywords: Diversification, product, woven, corak Insang, community service. Abstrak. Sejak ditetapkan pada tanggal 16 November 2018 sebagai kawasan kampung wisata tenun, jumlah pengunjung di Gang Sambas Jaya Kelurahan Batu Layang Kota Pontianak meningkat, namun produk yang disediakan hanya berupa kain tenun dan syal yang harganya relatif tinggi sehingga tidak semua pengunjung berminat dan mampu membelinya. Minimnya variasi produk turunan dengan berbagai rentang harga menjadikan pendapatan perajin tenun belum optimal. Pengabdian yang dilakukan oleh tim PPPUD (Program Pengembangan Produk Unggulan Daerah) bekerjasama dengan mitra Kelompok Swadaya Masyarakat (KSM) adalah mendiversifikasikan produk tenun corak insang agar mampu memperluas pangsa pasar dan memenuhi permintaan pengunjung. Kegiatan pengabdian yang dilakukan antara lain sosialisasi, pelatihan, pendampingan dan evaluasi. Pelatihan meliputi pelatihan membuat ornamen corak Insang pada clutch berbahan dasar pandan, pelatihan membuat tas tangan jenis halfmoon bag, pelatihan menjahit baju yang dimulai dari pembuatan pola dasar, pecah pola, menggunting bahan dan menjahit baju, dan pelatihan pembuatan pouch/pencil case dengan memanfaatkan sisa kain tenun dan kain tenun yang ada. Hasil kegiatan menunjukkan bahwa mitra kemudian  memiliki keterampilan dalam memproduksi produk turunan dari tenuncorak Insang. Sebanyak 5 orang memiliki kemampuan dalam membuat tas tangan model (halfmoon bag), 8 orang memiliki kemampuan dalam membuat ornamen tenun corak Insang pada produk clutch berbahan pandan, 10 orang telah memiliki kemampuan dalam membuat pola dasar, pecah pola dan menjahit baju dan 15 orang telah memiliki kemampuan membuat produk berupa pouch dan pencil case.Hal ini menunjukkan bahwa lebih dari 80% mitra telah berhasil melakukan diversifikasi produk tenun corak Insang.Kata Kunci: diversifikasi, produk, tenun, corak Insang, pengabdian.


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