Results 31 to 40 of about 459,482 (377)

Stability of Norway spruce (Picea abies [L.] Karst.) stands in the Beskid Śląski and Beskid Żywiecki Mts. from the aspect of their nutrition status

open access: yesJournal of Forest Science, 2008
The aim of the present research was to determine the stability of spruce stands in the areas of threat to forest stability in the Beskid Śląski and Beskid Żywiecki Mts. in the light of their nutrition. In 2002 samples of soil and of one- and two-year-old
J. Barszcz, S. Małek
doaj   +1 more source

Morphometric characteristics and the content of plastid pigments of the needles of Picea pungens depending on the distance from the highways

open access: yesBiosystems Diversity, 2017
This article examines the condition of the Picea pungens Engelm. plants at various distances from urban highways with high traffic intensity. The objects of the study were the trees P. pungens, whose age was about 35 years. The plants grow on four plots.
V. P. Bessonova, O. A. Ponomaryova
doaj   +1 more source

Influence of microwaves on the rate of the distillation and yield of etheric oil from the wooded greenery of conifers [PDF]

open access: yesHemijska Industrija, 2005
It is known that many plants represent valuable raw materials for technological processing and that there has been an increase in the use of medicinal, aromatic and spice plants as raw materials in industry.
Marjanović-Balaban Željka   +1 more
doaj   +1 more source

Optical Fiber-Based Needle Shape Sensing in Real Tissue: Single Core vs. Multicore Approaches [PDF]

open access: yesarXiv, 2023
Flexible needle insertion procedures are common for minimally-invasive surgeries for diagnosing and treating prostate cancer. Bevel-tip needles provide physicians the capability to steer the needle during long insertions to avoid vital anatomical structures in the patient and reduce post-operative patient discomfort.
arxiv  

Biology, Injury, and Control of the European Needle-bending Midge (Diptera: Cecidomyiidae) on Scotch Pine in Michigan [PDF]

open access: yes, 2017
Contarinia baeri is univoltine in Michigan. Adults emerge in spring, and females deposit eggs in small clusters in the sheaths of new-growth pine needles. Larvae hatch shortly thereafter and there are three larval instars.
Sapio, Frank J   +2 more
core   +2 more sources

Needle autopsy [PDF]

open access: yesRevista da Sociedade Brasileira de Medicina Tropical, 1997
Often in tropical practice there is not time or conditions to do a proper autopsy on a patient who has died. A needle biopsy technique is described for limited closed autopsy examination to clariffy organ histology. In this way the clinician may resolve puzzling fatal disease.
openaire   +4 more sources

Ultrasonic needles for bone biopsy [PDF]

open access: yes, 2017
Bone biopsy is an invasive clinical procedure where a bone sample is recovered for analysis during the diagnosis of a medical condition. When the architecture of the bone tissue is required to be preserved, a core-needle biopsy is taken.
Cleary, Rebecca   +5 more
core   +1 more source

The application of microwaves in essential oil hydrodistillation processes [PDF]

open access: yesChemical Industry and Chemical Engineering Quarterly, 2009
The influence of microwaves pre-treatment of raw plant materials (wooded greenery and fruits of conifers-fir, spruce, pine, juniper and Douglas fir) on the kinetics of the essential oil hydrodistillation using the Unger-type apparatus was studied.
P. Miletić   +2 more
doaj  

Buffon's problem with a pivot needle [PDF]

open access: yesElem. Math., Vol. 70, 2 (2015), pp. 67-70, 2014
In this paper, we solve Buffon's needle problem for a needle consisting of two line segments connected in a pivot point.
arxiv   +1 more source

Cosmic Needles versus Cosmic Microwave Background Radiation [PDF]

open access: yes, 2002
It has been suggested by a number of authors that the 2.7K cosmic microwave background (CMB) radiation might have arisen from the radiation from Population III objects thermalized by conducting cosmic graphite/iron needle-shaped dust.
Aguirre A. N.   +16 more
core   +2 more sources

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