Nature

Mix proportion and microscopic characterization of coal-based solid waste backfill material based on response surface methodology and multi-objective decision-making

The backfill materials in this experiment are composed of CG, CFA, DG, GFS and FBS, and ordinary Portland cement (OPC) is used as cementing material. The experimental materials are shown in Fig. 1. It ...
National Academies of Sciences%2c Engineering%2c and Medicine

Examination of the U.S. Air Force's Science, Technology, Engineering, and Mathematics (STEM) Workforce Needs in the Future and Its Strategy to Meet Those Needs

The following is a discussion of how this basic rated management process and model could be applied to STEM. Many of the STEM processes have a direct correlation to rated management processes. See AFI ...
Nature

Many objective optimization and decision support for dairy cattle feed formulation

Livestock feed formulation has significant impacts on livestock production and the environment. Linear and nonlinear constraints, framed as nutritional requirements and specific objectives, present a ...
EurekAlert!

Wide-field, high-resolution, and broad-band mesoscopic objective lens

Figure 1 (a) Structure of the mesoscopic objective, (b) Aberration distribution of the mesoscopic objective, (c) Wide-field imaging system built with the mesoscopic objective, (d) Laser point-scanning ...