Results 131 to 140 of about 1,847,045 (311)
The term structure and the expectations hypothesis: a threshold model [PDF]
The expectations hypothesis implies that rational investors can predict future changes in interest rates by simply observing the yield spread. According to Mishkin (1990) the expectations theory can also be reformulated in terms of the ability of the ...
Modena, Matteo
core +4 more sources
Estimation of Water Demand of Agriculture Sector by Water-Yield Function (Case Study: Sistan Province) [PDF]
International Journal of Agricultural Management and Development, 2015 I n this study, yield-water and profit function was used to obtain water demand function in agriculture sector. The results showed that the ratio of actual to potential Evapotranspiration had positive, significant effect on the ratio of actual to ...
Zahra Ghaffari Moghadam
doaj
Improving Milk Yield Performance of Crossbred Cattle in North-Eastern States of India [PDF]
Crossbreds hold the solution to the milk-deficit problem of North-Eastern states of India. The proportion of crossbred cattle in the region is 7.54 per cent (3.46 per cent of the country) as against 13.33 per cent for the country as a whole. However, the
Chandel, B.S., Paul, Debabrata
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Advanced Engineering Materials, EarlyView.Laser surface texturing significantly improves the corrosion resistance and mechanical strength of 3D‐printed iron polylactic acid (Ir‐PLA) for marine applications. Optimal laser parameters reduce corrosion by 80% and enhance tensile strength by 25% and ductility by 15%.
Mohammad Rezayat +6 more
wiley +1 more source
Effect of pre-sowing seed treatment by electrophysical and chemical exposures on maize grain yields
Аграрная наука Евро-Северо-ВостокаThe comparative effectiveness of pre-sowing treatment of maize (Zea mays L.) seeds by different methods is not sufficiently studied in the published results of scientific research.
Viktor I. Pakhomov +3 more
doaj +1 more source
Crop model and its application in para rubber [PDF]
Songklanakarin Journal of Science and Technology (SJST), 2007 Crop models are derived from quantitative models that comprise empirical models and mechanistic models. Four situations of crop production were used in crop modeling. 1) potential crop production, 2)water-limited crop production, 3) nitrogen-limited crop
Chiarawipa, R.
doaj
Dynamic Precipitation during High‐Pressure Torsion of a Magnesium–Manganese Alloy
Advanced Engineering Materials, EarlyView.An ultrafine‐grained alloy is produced by high‐pressure torsion of solutionized Mg–1.35 wt% Mn. Precipitation of nanometer‐scale Mn particles during deformation provides pinning sites. This prevents the formation of a bimodal grain structure and results in a finer grain size than for pure Mg.
Julian M. Rosalie, Anton Hohenwarter
wiley +1 more source
Yield trends and yield gap analysis of major crops in the world [PDF]
This study aims to quantify the gap between current and potential yields of major crops in the world, and the production constraints that contribute to this yield gap. Using an expert-based evaluation of yield gaps and the literature, global and regional
Hengsdijk, H., Langeveld, J.W.A.
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Advanced Engineering Materials, EarlyView.The documentation of component manufacture has become an essential part of today's production processes, especially for the analysis and optimization of production or component design with regard to structural performance, economic efficiency, and sustainability.
Björn Denker +4 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.This study examines how several molten high‐silicon electrical steels interact with both conventional and recycled MgO–C refractories. For this, various immersion experiments are conducted. In addition to infiltration, a number of mechanisms are identified and explained that control the corrosion of the refractory material.
Lukas Neubert +7 more
wiley +1 more source