Field studies of the thermal plume from the D. C. Cook submerged discharge with comparisons to hydraulic-model results

This study aims to review the effectiveness of using android-based multimedia learning to improve achievement cognitive learning outcome of students. The research method is the analysis of field studies. The focus in this research is Multimedia which can influence cognitive learning outcomes of students. data obtained in this study from the literature and direct field observations. The research subjects were high school students in Yogyakarta. The result of analysis and discussion of research indicate that there is the influence of multimedia learning to increase student achievement, which is indicated by increasing post-test result than before not using multimedia learning. Posttest value is greater than pretest.

Download Full-text

Ligand Field Studies on the Reinecke-Type Complexes with Aniline and Benzylamine

Zeitschrift für Physikalische Chemie ◽

10.1524/zpch.1971.74.1_2.011 ◽

1971 ◽

Vol 74 (1_2) ◽

pp. 11-16 ◽

Cited By ~ 1

Author(s):

I. Gănescu ◽

Margareta Teodorescu ◽

C. I. Lepădatu

Keyword(s):

Field Studies ◽

Ligand Field

Download Full-text

Orientation of processes of biological nitrogen transformation in winter rye agroecosystems under different levels of fertilization background

Agricultural science and practice ◽

10.15407/agrisp3.03.028 ◽

2016 ◽

Vol 3 (3) ◽

pp. 28-34

Author(s):

V. Volkogon ◽

I. Korotka

Keyword(s):

Root Zone ◽

Field Studies ◽

Nitrogen Transformation ◽

Mineral Nitrogen ◽

Nitrogen Fertilizers ◽

Winter Rye ◽

Podzolic Soils ◽

Microbial Preparation ◽

Biological Nitrogen

Aim. To determine physiologically expedient rates of mineral nitrogen in winter rye production on sod-podzol- ic soils based on the orientation of the processes of biological nitrogen transformation in the plants rhizosphere. Methods. Field studies, gas chromatography determination of potential nitrogen fi xation activity and potential emissions of N 2 O. Results. The results obtained have demonstrated that the rates of mineral nitrogen, not ex- ceeding 60 kg/ha, can be considered physiologically expedient for winter rye production on sod-podzolic soils. Under the application of microbial preparation Diazobakteryn, there is a higher physiological need of plants for nitrogen, which allows increasing the rates of nitrogen fertilizers up to 90 kg/ha. Conclusions. The orienta- tion of the processes of biological nitrogen transformation in the root zone of plants is a reliable indicator of determining the appropriateness of nitrogen fertilization of crops.

Download Full-text