The aim of the study was to assess how to locate logging operations in the scenically most appropriate way. A second objective was to find out whether the visual design principles adopted elsewhere are applicable in Finland. Different felling alternatives were created partly on the basis of landscap
โฆ LIBER โฆ
Small- and medium-scale effects of high-flying aircraft exhausts on the atmospheric composition
โ Scribed by I. L. Karol; Y. E. Ozolin
- Publisher
- Copernicus Group
- Year
- 1994
- Tongue
- English
- Weight
- 56 KB
- Volume
- 12
- Category
- Article
- ISSN
- 0992-7689
No coin nor oath required. For personal study only.
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Samples of NaA, CaA, KL, Silicalite-1, H-ZSM-5 and HY zeolites were submitted to high-energy ball milling and their properties were examined as functions of milling time. BET surface area, micropore volumes and external surface area as well as x-ray diffraction crystallinity and catalytic activity i