Results 61 to 70 of about 9,629,822 (348)

A comparative study of the phosphorus characteristics of oil palm volcanic soils in Papua New Guinea and New Zealand volcanic soils : a thesis presented in partial fulfillment of the requirements for the Degree of Master of Applied Science in Soil Science at Massey University [PDF]

, 1998
Oil Palm (Elaeis guineensis Jacq.) grown on volcanic ash soils in Papua New Guinea (PNG) generally respond well to N fertilisers but shows a lack of consistent response to inorganic phosphorus (P) fertilisers.
Banabas, Murom
core  

The role of forensic geoscience in wildlife crime detection [PDF]

, 2006
The increase in both automation and precision in the analysis of geological materials has had significant impact upon forensic investigations in the last 10 years.
Bull, PA, Morgan, RM, Parker, A, Wiltshire, P   +3 more
core   +1 more source

The Effect of Demineralization on Coal Functional Group Pyrolysis: Rank‐Dependent Dual Mechanisms of Structural Reorganization and Mineral Catalysis

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Coal pyrolysis, as a key thermochemical conversion process, is significantly influenced by inherent minerals, yet their role across different coal ranks remains inadequately understood. This study investigates the effect of acid‐washing (demineralization) on the thermal decomposition of six functional groups (aliphatic C–H, aromatic C–H/C=C, C=
Zhiyuan Niu, Guijian Liu, Hao Yin, Yang Song, Aifang Ding   +4 more
wiley   +1 more source

Influence of Toposequence on Physical and Mineralogical Properties of Soils Developed on Basaltic Parent Material under Sub-humid Terrestrial Ecosystem

Journal of Agricultural Sciences, 2020
Understanding of soil forming factors is crucial to define physical, mineralogical and morphological properties of soils. In addition to that soil formations were highly associated with slope positions which have influence on pedogenetic and weathering ...
Tülay Tunçay, Orhan Dengiz, Ali İmamoğlu   +2 more
doaj   +1 more source

Mineralogical and spectral characteristics of Changbai jade, Jilin province, Northeast China

Frontiers in Earth Science, 2023
Changbai jade is a type of jade ore with good economic value that is found in the tuff of the Upper Triassic Changbai Formation of the Mesozoic period in Jilin Province, China.
Miaocong Cao, Zhongyuan Gu
doaj   +1 more source

Marco Polo: near Earth object sample return mission [PDF]

, 2008
Marco Polo is a joint European-Japanese mission of sample return from a Near Earth Object. The Marco Polo proposal was submitted to ESA on July 2007 in the framework of the Cosmic Vision 2015-2025 context, and on October 2007 passed the first evaluation ...
Barucci, M. A., Binzel, R. P., Boehnhardt, H., Brucato, J. R., Coradini, M., Dotto, E., Franchi, I. A., Green, S. F., Josset, J. L., Kawaguchi, J., Koschny, D., Michel, P., Muinonen, K., Oberst, J., Yano, H., Yoshikawa, M.   +15 more
core  

Characterization and Modeling of Industrial Phosphoric Acids' Rheological Behavior: Impact of Magnesium Monoxide on Viscosity

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT This study investigates the rheological behavior of industrial phosphoric acids (H3PO4) produced at the JORF–LASFAR phosphoric plant in Morocco, with P2O5 concentrations of 18%, 29%, 42%, and 54%. Rheological measurements were performed using a rotary cylinder rheometer over a shear rate range of 1–1000 s−1.
Hamza Belbsir, Abderrahim Benzaouia, Said Kounbach, Abdelghani Laamaoui, Said Laassiri, Khalil El‐Hami, Rachid Benhida   +6 more
wiley   +1 more source

Two-phased knowledge formalisation for hydrometallurgical gold ore process recommendation and validation [PDF]

, 2014
This paper describes an approach to externalising and formalising expert knowledge involved in the design and evaluation of hydrometallurgical process chains for gold ore treatment.
Rintala, Lotta, Roth-Berghofer, Thomas, Sauer, Christian   +2 more
core   +2 more sources

Effect of Temperature and Atmosphere on Agglomeration of Bed Particles in a Bubbling Fluidised Bed Burning Na‐Enriched Coal

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Agglomeration of bed materials during circulating fluidised bed (CFB) combustion or gasification of high‐alkali fuel is a practical challenge in industrial practice. This work investigates experimentally the effect of temperatures (700°C–900°C) and atmosphere (air equivalence ratios 1.61–0.53) on agglomeration in a lab‐scale bubbling fluidised
Zipeng Guo, Jianbo Li, Xiaofei Long, Quanhai Wang, Xiaofeng Lu   +4 more
wiley   +1 more source

Mineralogical characteristics of metamorphic massif units outcropping in

, 2020
This study aims to investigate and correlate the mineralogical-petrographic characteristics of Metamorphites in Goksun, Afsin and Ekinozu in the Southeast Anatolian Metamorphic Massifs. In this context, the optical microscopy and XRD investigations were performed on several samples. Goksun Metamorphites are constituted by phyllite, calcphyllite, marble
Hozatlioglu, D, Bozkaya, O, Yalcin, H, Yilmaz, H   +3 more
openaire   +1 more source