Results 71 to 80 of about 1,446,859 (286)

Effect of Bioinoculum and Crop Waste at the Concentration of N, P, K and the Sustainability of Natural Resources in Soil Planted with Wheat

IOP Conference Series: Earth and Environmental Science
Abstract For an evaluation the effect of bioinoculation and the process of mixing crops waste in the soil on the concentration of nutrients (nitrogen, phosphorus, potassium), a field study was carried out by cultivating a wheat crop(Triticum aestivum L.) in Sumer City (District 5 South Abu Manihil), Al-Diwaniyah Governorate central of ...
A M Al-Zayadi, R S Jarallah
openaire   +1 more source

Biodiesel fuel from waste cooking oil & RBD palm oil via transesterification reaction with the aid of sodium methoxide, methanol, and ultrasonic reactor [PDF]

, 2008
Currently, the world is murmured to environmental issues and energy resources that every day becomes crucial and chronic. Using petroleum diesel as well fuels from natural resources will contribute to air pollution due to high amount of air pollutants ...
Mughirah, Abdullah
core  

Interaction between Molten Al‐Killed Mn–B Steel and Carbon‐Bonded MgO Refractories Based on Recyclates

Advanced Engineering Materials, EarlyView.
High‐temperature interactions between low‐sulfur Al‐killed Mn–B steel and MgO–C refractories (0 and 50 wt% recyclates) are studied via finger immersion tests (1600 °C). Surface‐active elements influence infiltration. MgO/CaS layer forms, along with spinel and calcium silicate.
Matheus Roberto Bellé, Lukas Neubert, Anton Yehorov, Till M. J. Stadtmüller, Christos G. Aneziris, Olena Volkova   +5 more
wiley   +1 more source

Analysis of proximate and porosity variations in collagen powder derived from natural resources: Thunnus albacares skin with different NaCl concentrations

IOP Conference Series: Earth and Environmental Science
Abstract Collagen from natural resources like yellowfin tuna skin (Thunnus albacares) skin is an alternative source of halal collagen that is rich in protein. The characterization of collagen starts with proximate tests like water, ash, protein, and fat content.
F Rahmitasari, D Sanjaya, TA Cevanti, W Prananingrum, null Sularsih   +4 more
openaire   +1 more source

Zein‐Based Adhesives: Sustainable Extraction and Application in Bioadhesive Technologies

Advanced Engineering Materials, EarlyView.
Zein is extracted from corn gluten meal using a simple and scalable process with high yield (~90%). The resulting protein is applied in bioadhesives modified with Ca2+ and Fe3+ ions, exhibiting substrate‐dependent adhesion. The findings demonstrate competitive bonding performance and highlight the role of ionic interactions in tuning adhesion ...
Paula Bertolino Sanvezzo, Daniela Winsley Valereto Friozi, Vinícius de Oliveira, Marcia Cristina Branciforti   +3 more
wiley   +1 more source

Antibacterial activity of chitosan from natural resource: Penaeus monodon shell with various concentrations and deacetylation degrees against Lactobacillus acidophilus

IOP Conference Series: Earth and Environmental Science
Abstract Lactobacillus acidophilus (L. acidophilus) is commonly found in the deep caries. Calcium hydroxide, a standard for direct pulp capping, has drawbacks such as tunnel defects. This study investigates the antibacterial activity of chitosan synthesized from Penaeus monodon (P.
W Prananingrum, null Sularsih, F Rahmitasari, D G Ramadan, P B Prabowo, E Radhianto, K Parisihni   +6 more
openaire   +1 more source

A model based on the Rybczynski equation for Portugal [PDF]

We built a model analyzing the importance which the natural advantages and local resources are in the manufacturing industry location, in relation with the "spillovers" effects and industrial policies.
Martinho, Vítor João Pereira Domingues
core   +1 more source

Brief Note: Ohio Lamprey, Ichthyomyzon bdellium (Petromyzonidae), in Ohio: A Review and Recent Records [PDF]

, 1993
Author Institution: Ohio Department of Natural Resources, Division of Natural Areas and Preserves, and Department of Life Science, Otterbein CollegePrior to 1983 only isolated specimens of Ohio lamprey {Ichthyomyzon bdellium) were collected at a few ...
Barnes, Mark D., Phinney, George J., Rice, Daniel L.   +2 more
core  

Application of Raman and Photoluminescence Spectroscopy to MgO‐C Refractories

Advanced Engineering Materials, EarlyView.
Visible to near infrared luminescence of MgO is studied on MgO‐C bricks and nominally pure MgO powder, with focus on two similar sharp high‐intensity signals, at 699 and 871 nm, each surrounded by symmetrical sidebands. The nature of these sidebands is investigated by temperature‐dependent spectroscopic measurements, confirming phonon involvement by ...
Julia Richter, Felix Drechsler, Till M. J. Stadtmüller, Cameliu Himcinschi, Christos G. Aneziris, Jens Kortus   +5 more
wiley   +1 more source

High-Spatial-Resolution Helium Detection and Its Implications for Helium Accumulation Mechanisms

Applied Sciences
Helium is a scarce strategic resource. Currently, all economically valuable helium resources are found in natural gas reservoirs. Owing to helium’s different formation and migration processes compared to natural gas’s, the traditional method of ...
Chao Lu, Bang Wang, Di Zhu, Quanyou Liu, Xuhang Zhang, Huaiyu He   +5 more
doaj   +1 more source