Results 21 to 30 of about 568,484 (304)

The Economics of Spruce Budworm Outbreaks in the Lake States: An Overview [PDF]

open access: yes, 2017
Economic effects of spruce budworm outbreaks in the Lake States were examined. The recent outbreak caused spruce and fir mortality on 420 thousand ha (I.OS million acres) of commercial forest land in the Lake States.
Gregory, G. Robinson   +3 more
core   +2 more sources

The Effect of Short Time Thermal Treatment on Swelling of Field Maple (Acer campestre L.) and Fir (Abies alba Mill.)

open access: yesActa Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2020
From the immemorial time wood is highly abundant and well-performing material. Further one due to practical use the wood heat treatment, as a process for improving its properties has been enhanced in the recent tim.
Holta Çota   +5 more
doaj   +1 more source

Non-linear Dependence of L(B) on L(FIR) and M(H2) among Spiral Galaxies and Effects of Tidal Interaction [PDF]

open access: yes, 1997
Through the study of a carefully selected sample of isolated spiral galaxies, we have established that two important global physical quantities for tracing star forming activities, L(FIR) and M(H2), have non-linear dependence on another commonly cited ...
A. del Olmo   +13 more
core   +3 more sources

Saproxylic beetles (Coleoptera) of the strictly protected area Bukowa Góra in the Roztoczański National Park

open access: yesLeśne Prace Badawcze, 2015
The aims of this study were to demonstrate the role of forests in the Roztoczański National Park as a refuge for rare and endangered saproxylic Coleoptera as well as recognition of entomological fauna related to dead wood.
Papis Magdalena, Mokrzycki Tomasz
doaj   +1 more source

Design and Implementation of Optimal Multi-rate Digital Down Converter Using MALAB and ModelSim [PDF]

open access: yesEngineering and Technology Journal, 2013
In this paper, a design and implementation of a digital down converter (DDC) filter for GSM, CDMA, WCDMA is presented. A powerful system design tool, Xilinx System Generator is adopted to simplify the design cycle and increase the productivity.
Hazim Salah Abdalsatar
doaj   +1 more source

Relationships Between Soil Properties and Leaf Area Index in Beech, Fir and Fir-Beech Stands

open access: yesForestist, 2011
Leaf area index (LAI) control many ecophysiological processes such as photosynthesis, interception, evapotranspiration and deposition of atmospheric chemicals.
Ömer KARA   +13 more
doaj   +1 more source

High Spatial Resolution KAO Far-Infrared Observations of the Central Regions of Infrared-Bright Galaxies [PDF]

open access: yes, 1996
We present new high spatial resolution Kuiper Airborne Observatory 50 micron and/or 100 micron data for 11 infrared-bright galaxies. We also tabulate previously published KAO data for 11 other galaxies, along with the IRAS data for the bulges of M 31 and
Harvey, P. M., Smith, Beverly J.
core   +2 more sources

Design and implementation of an efficient FIR digital filter

open access: yesCogent Engineering, 2017
Digital signal processing (DSP) circuits are extremely important in computing and communications areas. One application of DSP is a Finite impulse response (FIR) filter.
Sumbal Zahoor, Shahzad Naseem
doaj   +1 more source

The Radio Continuum, Far-Infrared Emission, And Dense Molecular Gas In Galaxies

open access: yes, 2010
A tight linear correlation is established between the HCN line luminosity and the radio continuum (RC) luminosity for a sample of 65 galaxies (from Gao & Solomon's HCN survey), including normal spiral galaxies and luminous and ultraluminous infrared ...
Appleton   +27 more
core   +1 more source

FIR/submm spectroscopy with Herschel: first results from the VNGS and H-ATLAS surveys [PDF]

open access: yes, 2011
The FIR/submm window is one of the least-studied regions of the electromagnetic spectrum, yet this wavelength range is absolutely crucial for understanding the physical processes and properties of the ISM in galaxies.
Baes, Maarten   +8 more
core   +2 more sources

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