関連する実験動画

Updated: Jul 12, 2026

Preparation and Testing of Plant Seed Meal-based Wood Adhesives
08:09

Preparation and Testing of Plant Seed Meal-based Wood Adhesives

Published on: March 5, 2015

アメリカ合衆国における住宅用木材の使用

F W Lipfert, J L Dungan

    Science (New York, N.Y.)
    |March 25, 1983
    PubMed
    まとめ

    住宅用木材の使用は都市部に集中しており,米国の室温の9-11%を供給しています. 木材供給の制約は認められていないが,空気の質への影響は暗示されている.

    さらに関連する動画

    Fabrication and Design of Wood-Based High-Performance Composites08:08

    Fabrication and Design of Wood-Based High-Performance Composites

    Published on: November 9, 2019

    Continuous In-woods Production of Biochar Using a Trailer-Mounted Air Curtain Burner03:42

    Continuous In-woods Production of Biochar Using a Trailer-Mounted Air Curtain Burner

    Published on: April 5, 2024

    関連する概念動画

    Introduction to Wood01:19

    Introduction to Wood

    Wood, derived from trees, is a versatile and widely used construction material. Trees feature a trunk surrounded by a protective layer of dead bark. Beneath this outer layer lies the living bark, followed by the cambium, and then the sapwood which transitions into heartwood as it matures. At the center of the trunk is the pith. The age of a tree can be discerned by examining its growth rings, which are concentric bands visible in the trunk's cross-section.
    The structural integrity of the wood...
    Softwoods and Hardwoods01:28

    Softwoods and Hardwoods

    Softwoods and hardwoods, derived from different types of trees, are distinguished by their leaf structures and cellular compositions, each serving unique purposes in construction and manufacturing. Softwoods come from cone-bearing trees with needle-like leaves and are predominantly composed of longitudinal cells called tracheids and a smaller proportion of radial cells known as rays. Due to their cellular structure, softwoods are commonly used in construction for structural frames, sheathing,...
    Lumber01:19

    Lumber

    Lumber is derived from logs which are harvested, debarked, and processed into long pieces with a rectangular cross-section. The transformation of logs into lumber involves multiple steps, beginning with an automated saw that slices the log into slabs. These slabs are then transported via a conveyor belt to smaller saws, where they are cut into square-edged pieces of specific widths.
    Initially, the surfaces of these lumber pieces are rough, and their dimensions may vary slightly from one end to...
    Structural Properties and Dimensions of Lumber01:21

    Structural Properties and Dimensions of Lumber

    Wood's structural properties derive from fibers aligned along the tree's length, contributing significantly to its mechanical strength. Wood exhibits up to twenty times greater tensile strength along these fibers compared to across them, and generally shows better performance under compression than tension. The length of fibers varies, with hardwoods having fibers around one twenty-fifth inch long and softwoods ranging from one-eighth to one-third inch.
    The strength characteristics of wood are...
    Wood Products01:21

    Wood Products

    Wood products encompass a broad range of materials crafted from wood strands, veneers, lumber, and even waste wood-like shreds, designed for both structural and nonstructural purposes. Various specialized wood products have been developed to enhance strength, durability, and versatility in building applications.
    Glue-laminated wood, often referred to as glulam, combines multiple smaller pieces of dimensional lumber using adhesives to form a single, larger piece. Cross-laminated timber consists...
    Wood Panel Products01:18

    Wood Panel Products

    Wood panel products are essential materials used in construction for applications such as flooring, siding, and roofing, typically available in standard dimensions of 4 feet by 8 feet, with thicknesses varying from one-quarter of an inch to one and one-eighth inches. Among the most common types of wood panels is plywood, which is produced by gluing multiple layers of thin wood veneers under pressure. The grain of the outer veneers runs lengthwise, while the grains of the interior layers run...