Results 11 to 20 of about 20,154 (241)

Micro-contextual identification of archaeological lipid biomarkers using resin-impregnated sediment slabs

open access: yesScientific Reports, 2020
Characterizing organic matter preserved in archaeological sediment is crucial to behavioral and paleoenvironmental investigations. This task becomes particularly challenging when considering microstratigraphic complexity.
Caterina Rodríguez de Vera   +11 more
doaj   +1 more source

Analysis of anatomical and micromorphological characteristics of Iva xanthifolia nutt. [PDF]

open access: yesZbornik Matice Srpske za Prirodne Nauke, 2007
Iva xanthifolia is a North American weed species, which was introduced and naturalized in Europe. Anatomical and micromorphological characteristics of this species were investigated, in order to get better knowledge of its biology, which could help in ...
Krstić Lana N.   +5 more
doaj   +1 more source

Importance of micromorphological characteristics of foliar and pollen grains for delimitation of Oak species in Iran [PDF]

open access: yesتحقیقات جنگل و صنوبر ایران, 2011
Several species of oaks (Quercus spp.) grow abundantly in the Hyrcanian, Arasbaran and Zagros forests of Iran. Taxonomy of oaks is difficult because of it's immense size and wide distribution, heterophylly, hybridization and changes in morphological ...
Parisa Panahi   +3 more
doaj   +1 more source

Prevention of strain‐induced impairments of patellar tendon micromorphology in adolescent athletes

open access: yesScandinavian Journal of Medicine & Science in Sports, 2021
High‐level patellar tendon strain may cause impairments of the tendon's micromorphological integrity in growing athletes and increase the risk for tendinopathy. This study investigated if an evidence‐based tendon exercise intervention prevents high‐level
F. Mersmann   +6 more
semanticscholar   +1 more source

Investigating the Morphology and Anatomy of Vegetative Organs and Micromorphology of Seeds in some Selected Species of Malvaceae [PDF]

open access: yesتاکسونومی و بیوسیستماتیک, 2019
The Malvaceae family is one of the most important families of flowering plants which has been considered for its economical and medicinal applications.
Rahmat Pour, Zohreh Karimi, Soheila Kor
doaj   +1 more source

Micromorphology, Microstructure, and Wear Behavior of AISI 1045 Steels Irregular Texture Fabricated by Ultrasonic Strengthening Grinding Process

open access: yesMetals, 2022
In this study, the tribological properties of three AISI 1045 steel samples were investigated. Two samples were treated with ultrasonic shot peening (USP) and ultrasonic strengthening grinding process (USGP), respectively, while the other one was only ...
Jinrui Xiao   +6 more
doaj   +1 more source

Landscape Dynamics in the Caspian Lowlands Since the Last Deglaciation Reconstructed From the Pedosedimentary Sequence of Srednaya Akhtuba, Southern Russia

open access: yesGeosciences, 2018
Surface Kastanozem of the Lower Volga area was first studied as a part of the pedocomplex, with the lower part (148⁻160 cm) formed in Early Khvalynian Chocolate clays (13⁻15 ka), the middle part (100⁻148 cm) in a mixed clay-loess ...
Marina Lebedeva   +7 more
doaj   +1 more source

Seed Coat Ornamentation of some Species of Vicia L. Genus and their Practical Value in Classification [PDF]

open access: yesتاکسونومی و بیوسیستماتیک, 2019
Microcharacters of seed coat and its surface patterns are valuable in the systematic consideration in some genera. The aim of this study was to introduce the application of these data in assisting the identification of Vicia L. species.Micromorphological
Mohammad Hossein Ehtemam   +1 more
doaj   +1 more source

Experimental Study on the Impact of CO2 Treatment on Different Lithofacies in Shale Oil Reservoirs

open access: yesApplied Sciences, 2022
CO2 technology has been progressively used in the development of shale oil. After injection, CO2 can react with formation water to form carbonic acid, which then reacts with carbonate and silicate minerals, resulting in changes in porosity and ...
Jiaping Tao   +5 more
doaj   +1 more source

A 3D Monte Carlo Simulation for Aerosol Deposition onto Horizontal Surfaces by Combined Mechanisms of Brownian Diffusion and Gravity Sedimentation

open access: yesAtmosphere, 2022
A three-dimensional Monte Carlo model was developed to simulate the deposition of aerosol particles onto horizontal solid surfaces. The random walk method was employed to solve the particle transport equation, which allowed obtaining the trajectory of ...
Shixian Wu   +4 more
doaj   +1 more source

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