Smart energy conservation research is gaining traction in a variety of industries throughout the world. The current projected to cut consumption construction sector, which has already reached 49% globally and expected rise by 2% annually, costing millions dollars per month. Balancing savings with thermal satisfaction difficulty, as most researchers have concentrated on attaining without reachin...

In the absense of frictionless trade, domestic productivity will be a major determinant of prices. Using repeated cross-sections of absolute prices of individual goods across European countries, I find that products of an industry tend to be cheaper in countries with higher productivity in that industry. Similarly, countries with higher productivity in manufacturing have lower prices for produc...

optimum working life of tractor and farm machinery employed in potato production in hamadan province was assessed through data envelopment analysis. an input oriented model was applied to determine the optimized machinery system. in this model inputs were the lifetime of tractor as well as seven involved machines including moldboard plow, potato planter, chemical fertilizer spreader, tractor mo...

*Correspondence: Richard T. Sayre, Los Alamos National Laboratory, New Mexico Consortium, 100 Entrada Dr, Los Alamos, NM 87544, USA e-mail: rsayre@newmexico consortium.org One of the most environmentally sustainable ways to produce high-energy density (oils) feed stocks for the production of liquid transportation fuels is from biomass. Photosynthetic carbon capture combined with biomass combust...

The loss of biodiversity is threatening ecosystem productivity and services worldwide, spurring efforts to quantify its effects on the functioning of natural ecosystems. Previous research has focused on the positive role of biodiversity on resource acquisition (i.e., niche complementarity), but a lack of study on resource utilization efficiency, a link between resource and productivity, has ren...