| Review Article Published In: November, 2019 | |
| Advancing Electronic Waste Management Techniques among Electrical/Electronic Technicians’ Workshops for Sustainable Healthy Society | |
| Ogbuanya Theresa Chinyere and Yekinni Sunkanmi Afeez* | |
| Research Article Published In: November, 2019 | |
| Determination of Class I and Class II rocks from Conventional method based on the Mechanism of rock Deformation Process | |
| Akinbinu Victor Abioye* | |
| Research Article Published In: November, 2019 | |
| Plasma Extraction of Metals in Space | |
| Peter J Schubert* | |
| Opinion Published In: December, 2019 | |
| Challenges of Biohydrometallurgy in the Circular Economy | |
| Ellen Cristine Giese* | |
| Research Article Published In: December, 2019 | |
| Capture Characteristics of Combinative Rod Matrix in High Gradient Magnetic Separation | |
| Jing Li, Jianwu Zeng, Haiyun Xie, Peichun Sun and Luzheng Chen* | |