Results 61 to 70 of about 4,995 (209)
Planar Non-Uniformity of Regular and Partially Regular Microreliefs and Method for Its Evaluation
Based on the analysis of grooves of regular and partially regular microreliefs formed on flat surfaces, the relationship between the geometric parameters of the grooves of their microreliefs, which ensures their regularity, was revealed.
Volodymyr Dzyura +3 more
doaj +1 more source
ABSTRACT Temperate river floodplains present a significant challenge for archaeologists, as cultural and palaeoenvironmental remains are often difficult to locate but can be exceptionally well preserved, especially where groundwater levels are high. In these alluvial environments, the deposition of thick, fine‐grained sediments has potential to deeply ...
Nicholas Crabb +3 more
wiley +1 more source
Some Issues of the Humara Fortress Planning and Fortification
Introduction. The territory of Karachay-Cherkessia since ancient times was a densely populated region. Life was especially intense in the era of the Early Middle Ages.
Umar Yu. Kochkarov, Mikhail O. Zhukovsky
doaj +1 more source
Технология механического усиления деталей цилиндрической формы в печатных машинах [PDF]
Друкарська машина є важливою частиною будь-якого поліграфічного виробництва і потребує значних капіталовкладень. Механізми, які використовуються в даному обладнанні мають бути надзвичайно точними, адже це впливає на якість друкованих відбитків. Агресивне
Kyrychok, Petro Oleksiiovych +5 more
core
Immersed superhydrophobic surfaces: Gas exchange, slip and drag reduction properties [PDF]
Superhydrophobic surfaces combine high aspect ratio micro- or nano-topography and hydrophobic surface chemistry to create super water-repellent surfaces. Most studies consider their effect on droplets, which ball-up and roll-off.
Bachhuber +57 more
core +1 more source
ABSTRACT Airborne laser scanning (ALS, lidar) has become a key method for studying ancient Maya landscapes, offering unprecedented visibility of anthropogenic terrain modifications in densely forested environments. Despite this progress, the visualization of elevation data remains understandardized, with many researchers relying on ad hoc or ...
Žiga Kokalj
wiley +1 more source
STUDY OF LEUKOSAPPHIRE SURFACE MORPHOLOGY CHANGE BY ARGON ION BEAM AT SMALL GRAZING ANGLE [PDF]
Subject of Research. The paper presents the results of experimental study on the specific features of argon ion beam effect on a sapphire surface at small grazing angles. Mechanically ground and defective epipolished leucosapphire plates with 20 × 20 ×
Oleg V. Devitsky +4 more
doaj +1 more source
Research of microrelief and structure of the surface layer by laser and ultrasonic thermo-straining treatment of tool steel [PDF]
В даній статті, для поліпшення мікрорельєфу та структури поверхневого шару інструментальної сталі, запропоновано комбінований спосіб лазерного термозміцнення та наступного ультразвукового деформаційного зміцнення і оздоблювання.
Danyleiko, O. +7 more
core +1 more source
Biodiversity in mountain soils above the treeline
ABSTRACT Biological diversity in mountain ecosystems has been increasingly studied over the last decade. This is also the case for mountain soils, but no study to date has provided an overall synthesis of the current state of knowledge. Here we fill this gap with a first global analysis of published research on cryptogams, microorganisms, and fauna in ...
Nadine Praeg +36 more
wiley +1 more source
Seasonal progression of active-layer thickness dependent on microrelief [PDF]
Introduction Active-layer thickness is a major factor for all physical and biological processes in permafrost soils. It is closely related to the fluxes of energy, water and carbon between permafrost landscapes and the atmosphere. Active-layer thickness
Abramova, Ekaterina N. +4 more
core

