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1.

Geotechnical Properties and Geochemical Composition of Mudrock from the Douala Sub Basin, Cameroon: Implication for Industrial Potentials Ndengwe Alexander Tangwa, Njoh Oliver Anoh, Nowel Yinkfu Njamnsi Journal of Geosciences and Geomatics. 2022 10 (3). doi: 10.12691/jgg-10-3-5 Keywords: Mudrock, clay mineral, characterization, valorisation, Douala Sub basin Cameroon Context: ...to determine its applicability in industries. Grain size analysis reveals that clay-sized particles dominate the samples, with a plasticity index ranging from 6.8% to 20.67%. The mudrock materials are primarily composed of kaolinite (16.8-49.4%), quartz (15.8-68.9%), an... Abstract Full Text (PDF) [Epub] Full Text (HTML)

2.

Study of Correlations between Particle Size Analysis and Intrinsic Properties of Termite Mound Soils Cubitermes sp Louis Ahouet, Sylvain Ndinga Okina, Mondésire Odilon Ngoulou, Bockou Ekockaut Joseph Arsène American Journal of Materials Science and Engineering. 2022 10 (1). doi: 10.12691/ajmse-10-1-2 Keywords: intrinsic properties, particle size analysis, prediction, termite mound soils Cubitermes Spp Context: ...ed when identifying materials in the preliminary study phase. The soils studied are clays (inactive and normal) of low to medium plasticity , containing minerals (kaolinite, illite, montmorillonite). The swelling potential of the soils varies from low, medium and high. T... Abstract Full Text (PDF) [Epub] Full Text (HTML)

3.

Static Response of Steel-Concrete-Steel Sandwich Beam with Bi-Directionally Inclined Connectors N. Anandavalli, J. Rajasankar, Amar Prakash, B. Sivaprasad American Journal of Civil Engineering and Architecture. 2013 1 (1). doi: 10.12691/ajcea-1-1-3 Keywords: steel-concrete-steel sandwich beam, bi-directionally inclined, shear connector, load-displacement Context: ...o represent concrete, cover plates and shear connector respectively. Behaviour of concrete is represented using concrete damaged plasticity model, while steel behaviour is modelled by using bilinear stress-strain curve. Beam is simply supported and is subjected to a cen... Abstract Full Text (PDF) [Epub] Full Text (HTML)

4.

Geotechnical Assessment of Clay Deposits in Minna, North-Central Nigeria for Use as liners in Sanitary Landfill Design and Construction Amadi A. N., Okunlola I. A., Eze C. J., Jimoh M. O., Unuevho C. I., Abubakar Fahad American Journal of Environmental Protection. 2015 3 (3). doi: 10.12691/env-3-3-2 Keywords: clay, geotechnical assessment, landfill design, barrier soils, containment, contamination, minna, north-central Nigeria Context: ...lassified as a clayey material. The liquid limit ranged from 45.5%-61% with a mean value of 51.8% which is an indication of high plasticity and low hydraulic conductivity, the plastic limit ranged from 29.2%-35.8% with a mean value of 32.44% and its plasticity index ran... Abstract Full Text (PDF) [Epub] Full Text (HTML)

5.

Comparative Study of the physico-chemical Characterization of Three Arid Soils in the Hadjer Lamis Region (Chad) Timbe N’Djédanoum, François Ouedraogo, Sayouba Kabre, Ibrahim Pafadnam, Moussa Dit Corneille Tarpilga, Bétaboalé Naon, Francois Zougmore American Journal of Materials Science and Engineering. 2023 11 (2). doi: 10.12691/ajmse-11-2-2 Keywords: arid, climate, physico-chemical, soil, organic matter, fertility Context: ... in the bottom of the sieves for the different samples, which are as follows: Dandi: 63.4%, Karal: 70.5%, Mani: 2.1%. Mani has a plasticity index (PI) that cannot be measured, while Dandi and Karal have plasticity indices of 4.75 and 21.15 respectively. Using the soil c... Abstract Full Text (PDF) [Epub] Full Text (HTML)

6.

Geological and Geotechnical Investigation of Gully Erosion along River Bosso, Minna, North Central Nigeria I. A. Okunlola, I. A. Abdulfatai, Kolawole L. L., Amadi A. N. Journal of Geosciences and Geomatics. 2014 2 (2). doi: 10.12691/jgg-2-2-2 Keywords: geology, geotechnical properties, subsoil, gully erosion, anthropogenic factors Context: ...rominent than granite-gneiss and schist. The index test results for the natural moisture content ranges from 11.19 – 24.08%; the plasticity index ranges from 0 – 5.21%; the sieve analysis result shows that coefficient of uniformity, Cu ranges from 3.37 and 29... Abstract Full Text (PDF) [Epub] Full Text (HTML)

7.

Numerical Modelling of RC Columns Subjected to Biaxial Horizontal Loading and Variable Axial Load André Furtado, Hugo Rodrigues, António Arêde American Journal of Civil Engineering and Architecture. 2015 3 (1). doi: 10.12691/ajcea-3-1-5 Keywords: numerical modelling, rc columns, biaxial behaviour, variable axial load Context: ...ponse of all specimens using the computer program SeismoStruct and adopting three different modelling strategies, such as lumped plasticity and distributed plasticity (based in displacements and forces formulations) that were adopted in order to obtain the real behaviou... Abstract Full Text (PDF) [Epub] Full Text (HTML)

8.

Blast Loading Resistance of Metro Tunnel in Shale Rock: A Coupled-Eulerian-Lagrangian (CEL) Approach Mohd Shoeb, Mohd. Evan, Mohammad Anas, Mohammad Arif Kamal American Journal of Civil Engineering and Architecture. 2022 10 (3). doi: 10.12691/ajcea-10-3-1 Keywords: blast loading, weathering, tunnel, shale, Abaqus, Coupled-Eulerian-Lagrangian (CEL) Context: ...itu conditions, the TNT sphere and air inside the rock tunnel were modeled using the CEL approach. Mohr-Coulomb, Concrete Damage plasticity , and Johnson-Cook constitutive material models were used to mimic the elastoplastic behavior of various materials, including rock,... Abstract Full Text (PDF) [Epub] Full Text (HTML)

9.

Lipoic Acid Facilitates Learning and Memory in Aged Mice Xinrong Pei, Yuqi Dong, Feiya Luo, Shuxia Xing, Xueshuo Wang, Bingfeng Lv Journal of Food and Nutrition Research. 2019 7 (11). doi: 10.12691/jfnr-7-11-4 Keywords: Lipoic acid, learning and memory, aging, synaptic plasticity Context: ...d C57BL / 6J mice without any dosage). Cognitive abilities were tested through behavioral tests, and factors related to synaptic plasticity (BDNF, PSD95, p-NMDAR1, p-CAMK II) were detected by Western Blot. In behavioral test, young control group shown a greater capacity... Abstract Full Text (PDF) [Epub] Full Text (HTML)

10.

Genomic-Epigenomic Signaling Pathways Changes in Cellular Differentiation Process Victor Valdespino, Patricia M. Valdespino, Victor Valdespino Junior American Journal of Biomedical Research. 2013 1 (2). doi: 10.12691/ajbr-1-2-3 Keywords: cellular differentiation process, reprogramming, genetic and epigenetic mechanisms Context: .... Dedifferentiation from somatic cells to iPSCs involves multiple genetic-epigenetic signaling pathways to obtain high levels of plasticity , self-renewal, motility and loss of specialized cellular functions. Eleven main signaling pathways have been involved in cell fate... Abstract Full Text (PDF) [Epub] Full Text (HTML)