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Application of laser in heating technique of both organic gas-phase and solid particles for thermochemical decomposition at elevated temperatures in the absence of oxygen is presently a challenging area. Laser pyrolysis is a powerful and a versatile tool for the gas-phase synthesis of nanoparticles. Generally, the purpose of pyrolysis is not only f...
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As the world second largest producer and exporter of palm oil after Indonesia, Malaysia's palm oil industries generate huge amount of biomass especially after pruning or harvesting the fresh bunch. The generated oil palm biomass includes empty fruit brunch (EFB), palm kernel shell, oil palm trunk (OPT), oil palm frond (OPF), palm oil mill effluent...
In Malaysia, approximately 110,000 ha of acid sulphate soils are estimated to occur mostly along the west coast, while about 102.80 million ha are under acidic nature in Indonesia. Acid sulphate soils generally have significant amounts of free and absorbed sulphate, pale yellow mottles of jarosite along old root channels and on ped surfaces with pH...
Oil palm provides an important source of edible oils and fats, accounting for >30% of total global production and >55% of the international trade in these foodstuffs. The palms produce fresh fruit bunches, comprising several hundreds of small fruitlets, which are compressed and steamed to extract the oil. Soil nutrients in oil palm estates become d...
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Citations
... This way, no catalysts or gasifying agents are needed and tar production is lowered. Recently, Junoh and Ani [247] reported a relatively new method using laser for the thermal treatment of solid and gas-phase of biomass processing. This constitutes a very promising technique regarding the field of nanotechnology, once carbon nanoparticles can be synthesized from the producer gas, ensuring sustainability of the natural resources. ...
Lasera (light amplification by simulated emission of radiation) pertama kali aditemukan padaa abad ke-20 dan digunakan untuk elektronik dan kepentingan militer dengan berbagaia perkembangan dan inovasia lainnya, laser sendiri pada abada ke-20 disebut (quenta) yaitu bentuk dari suatua energi frekuensi radiasi yang saling berhubungan, laser sendiri merupakan efek pengunaana mekanika kuantumw yang terdirii dari panjanga gelombang yang sama dengan memanfaatkanq radiasi .Tujuan dalam penelitianq ini, digunakan untuk pengujian senjata laser dioda berkekuatan dan berkecepatan tinggi yang terdiri dalam dua kondisiw yaitu kuat teganganr dan kecepatan arus laserr untuk meningkatkane keakuratant dalam menembakt ke sasaran dan sebagai pengganti senjata yang lebih efisien yang menggunakan senjata dalam bentuk cahaya laser. Metode penelitiann ini menggunakann metode triangulasi yaitu dimana menggunakani metode eksperimeni untuk mendapatkans dataa kuantitatifi untuk membuktikani hipotesisi dengan cara mengujii 3 faktor yang dinilaii berpengaruh pada penelitian iini yaituu faktor keakuratan bidikan sasaran, faktor kecepatan cahaya yang dihasilkan dan faktor kekuatan arus laser. Sinar laser ini menghasilkan tegangan dan arus sebesar 50000mW dimana sinar laser tersebut dapat membakar benda yang terkena pancaran laser tersebut hingga membekas atau terbakar hangus dan radiasi dari laser ini hanya memerlukan 3 detik untuk menghanguskan atau membakar benda sasarannya. Laser ini mampu menjangkau jarak 2-5 Km dengan jarak efisien pembakaran kurang dari 10 detik yaitu 6-8 meter.
