man-made elements

man-made elements:

see synthetic elementssynthetic elements,
in chemistry, radioactive elements that were not discovered occurring in nature but as artificially produced isotopes. They are technetium (at. no. 43), which was the first element to be synthesized, promethium (at. no. 61), astatine (at. no.
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References in periodicals archive ?
Pieces such as Oribe Futamono #11, in which the corner of a cube emerges from an organic mass of clay, and Oribe Vase # 23, a conglomeration of a thrown bowl and shards of clay, have clear incorporated man-made elements.
I looked at man-made elements including concrete and rust patterns, chipped paint and tyre tracks on mud to come up with my pattern," said Chloe.
He adds: "Our Carhartt product line includes several items ideally suited to battling natural and man-made elements.
The inspection matrix for the landscape inventory included sections of the existing plant species, condition of man-made elements, architectural coherence, established presence of wildlife, land management, function and landscape components.
These natural and man-made elements appear to be regulated - in perfectly harmonious interaction - by the clockwork gears.
Within this landscaping system, natural and man-made elements are structured in a balanced and sustainable symbiosis.
Washington, December 15 (ANI): A scientist has put forward a new hypothesis regarding the rapid retreat of Himalayan glaciers in recent decades, attributing the phenomenon to natural elements like the geography and man-made elements like dust and soot.
The contributors, a good mix of academics and industrial experts, cover natural toxicants such as pyrrolizidine alkaloids, glucosinolates, phycotoxins in seafood, mushroom toxins (including edible and toxic mushrooms), mycotoxins, phytoestrogens and beta-carboline alkaloids as well-as man-made elements such as nitrates and nitrites, acrylamide in heated foods, furan, chloropropanols and their fatty acid esters, hetrocyclic amines and polycyclic aromatic hydrocarbons.
We learn about many aspects of the timber industry from the natural world (N for Nursery trees nestle near natural seedlings) to the man-made elements (T for Timber cruisers tally trees).
The developers took the name "greenbelt" from the ideal of the same name used by the famous architec, Le Corbusier, who believed that artificial, man-made elements in the metropolis should be integrated with the environment.
The two painters came together most closely, perhaps, in the mid-1870s, when both used the palette knife extensively and both seemed equally engaged by investigating how the geometry of man-made elements in the landscape--roofs, walls, roads, and bridges--could be used to set up unifying rhythms that stiffened a composition.
A dramatic waterway courses throughout and integrates and transitions the man-made elements into the natural landscape.