Results 1 to 10 of about 62,000 (226)
PEMANFAATAN BIOMASSA KAYU SEBAGAI SUMBER ENERGI TERBARUKAN [PDF]
Sejak lima tahun terakhir Indonesia mengalami penurunan produksi minyak nasional akibat menurunnya secara alamiah cadangan minyak pada sumur-sumur produksi.
Arhamsyah Arhamsyah
doaj +2 more sources
Penelitian ini bertujuan untuk mengetahui karakteristik serta aktivitas antibakteri asap cair yang berasal dari biomassa kayu putih (Melaleuca leucadendra) dan kayu jati (Tectona grandis).
Ria Suryani +3 more
doaj +1 more source
Reaksi transesterifikasi dalam proses pembuatan biodiesel merupakan reaksi yang lambat karena berlangsung dalam sistem dua fase. Permasalahan tersebut dapat diatasi dengan penambahan co-solvent yang tidak reaktif.
O. Rachmaniah, A. Baidawi, I. Latif
doaj +1 more source
Penelitian ini dilaksanakan di Jawa Barat dan dengan menggunakan 32 pohon contoh destruktif diformulasikan persamaan allometrik yang dapat digunakan untuk estimasi biomassa karbon bagian atas, bagian bawah dan biomassa karbon total pada tegakan ...
Chairil Nawar Siregar
doaj +1 more source
Occurrence of Ochratoxin A in Coffee: Threads and Solutions—A Mini-Review
Ochratoxin A (OTA) is a widespread bioactive extrolite from secondary metabolism of fungi which presence in foods like coffee is of public health concern, particularly for heavy drinkers.
Ana Lúcia Leitão
doaj +1 more source
AJUSTE SIMULTÂNEO NA PREDIÇÃO DE BIOMASSA AÉREA EM Araucaria angustifolia (Bertol.) Kuntze
Atualmente a estimativa da biomassa é feita de forma independente para cada compartimento da árvore, entretanto estudos mostram a importância do ajuste simultâneo para garantir a melhor predição da biomassa por compartimento e total.
Thiago Wendling Gonçalves de Oliveira +3 more
doaj +1 more source
Este estudo avaliou a distribuição longitudinal da biomassa de microcrustáceos planctônicos, em três reservatórios subtropicais, no Brasil, e a relação dessa distribuição com algumas variáveis limnológicas em reservatórios.
Martín César María Bletter +1 more
doaj +1 more source
Microbial CO2 bioconversion: integrating carbon fixation pathways and sustainable biomanufacturing
The continued rise in atmospheric carbon dioxide (CO2) concentrations has intensified the need for sustainable technologies capable of mitigating greenhouse gas emissions while generating value-added products. In this context, microbial CO2 bioconversion
Elison de Souza Sevalho +5 more
doaj +1 more source
Biomass was the dominating source of energy for human activities until the middle 19th century, when coal, oil, gas and other energy sources became increasingly important but it still represents ca. 10% of the worldwide energy supply. The major part of biomass for energy is still "traditional biomass" used as wood and coal extracted from native forests
openaire +3 more sources
Quantificação da biomassa de um povoamento de Acacia mearnsii De Wild. na região sul do Brasil.
O presente estudo, em povoamento de Acácia-negra, aos 8 anos de idade, na Serra do Sudeste, no município de Minas do Leão, RS, teve o objetivo de quantificar a biomassa total do povoamento e a sua distribuição em cada componente da biomassa das árvores ...
Leonir Rodrigues Barichello +2 more
doaj +1 more source

