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Chemical vapor deposition (CVD) is a vacuum deposition method used to produce high quality, and high-performance, solid materials. The process is often used in the semiconductor industry to produce thin films.
Geotechnical engineering is the branch of civil engineering concerned with the engineering behavior of earth materials. It uses the principles of soil mechanics and rock mechanics for the solution of its respective engineering problems. It also relies on knowledge of geology, hydrology, geophysics, and other related sciences. Geotechnical (rock) engineering is a subdiscipline of geological engineering.
Substrate may refer to:
Coir, also called coconut fibre, is a natural fibre extracted from the outer husk of coconut and used in products such as floor mats, doormats, brushes, and mattresses. Coir is the fibrous material found between the hard, internal shell and the outer coat of a coconut. Other uses of brown coir are in upholstery padding, sacking and horticulture. White coir, harvested from unripe coconuts, is used for making finer brushes, string, rope and fishing nets. It has the advantage of not sinking, so can be used in long lengths in deep water without the added weight dragging down boats and buoys.
Stucco or render is a construction material made of aggregates, a binder, and water. Stucco is applied wet and hardens to a very dense solid. It is used as a decorative coating for walls and ceilings, exterior walls, and as a sculptural and artistic material in architecture. Stucco can be applied on construction materials such as metal, expanded metal lath, concrete, cinder block, or clay brick and adobe for decorative and structural purposes.
Architectural acoustics is the science and engineering of achieving a good sound within a building and is a branch of acoustical engineering. The first application of modern scientific methods to architectural acoustics was carried out by the American physicist Wallace Sabine in the Fogg Museum lecture room. He applied his newfound knowledge to the design of Symphony Hall, Boston.
A thin film is a layer of material ranging from fractions of a nanometer (monolayer) to several micrometers in thickness. The controlled synthesis of materials as thin films is a fundamental step in many applications. A familiar example is the household mirror, which typically has a thin metal coating on the back of a sheet of glass to form a reflective interface. The process of silvering was once commonly used to produce mirrors, while more recently the metal layer is deposited using techniques such as sputtering. Advances in thin film deposition techniques during the 20th century have enabled a wide range of technological breakthroughs in areas such as magnetic recording media, electronic semiconductor devices, integrated passive devices, LEDs, optical coatings, hard coatings on cutting tools, and for both energy generation and storage. It is also being applied to pharmaceuticals, via thin-film drug delivery. A stack of thin films is called a multilayer.
A concrete slab is a common structural element of modern buildings, consisting of a flat, horizontal surface made of cast concrete. Steel-reinforced slabs, typically between 100 and 500 mm thick, are most often used to construct floors and ceilings, while thinner mud slabs may be used for exterior paving .
Waterproofing is the process of making an object or structure waterproof or water-resistant so that it remains relatively unaffected by water or resisting the ingress of water under specified conditions. Such items may be used in wet environments or underwater to specified depths.
The substrate of an aquarium refers to the material used on the tank bottom. It can affect water chemistry, filtration, and the well-being of the aquarium's inhabitants, and is also an important part of the aquarium's aesthetic appeal. The appropriate substrate depends on the type of aquarium; the most important parameter is whether the aquarium contains fresh water or saltwater.
Stone veneer is a thin layer of any stone used as decorative facing material that is not meant to be load bearing. Stone cladding is a stone veneer, or simulated stone, applied to a building or other structure made of a material other than stone. Stone cladding is sometimes applied to concrete and steel buildings as part of their original architectural design.
Physical vapor deposition (PVD), sometimes called physical vapor transport (PVT), describes a variety of vacuum deposition methods which can be used to produce thin films and coatings on substrates including metals, ceramics, glass, and polymers. PVD is characterized by a process in which the material transitions from a condensed phase to a vapor phase and then back to a thin film condensed phase. The most common PVD processes are sputtering and evaporation. PVD is used in the manufacturing of items which require thin films for optical, mechanical, electrical, acoustic or chemical functions. Examples include semiconductor devices such as thin-film solar cells, microelectromechanical devices such as thin film bulk acoustic resonator, aluminized PET film for food packaging and balloons, and titanium nitride coated cutting tools for metalworking. Besides PVD tools for fabrication, special smaller tools used mainly for scientific purposes have been developed.
In biology, a substrate is the surface on which an organism lives. A substrate can include biotic or abiotic materials and animals. For example, encrusting algae that lives on a rock can be itself a substrate for an animal that lives on top of the algae. Inert substrates are used as growing support materials in the hydroponic cultivation of plants. In biology substrates are often activated by the nanoscopic process of substrate presentation.
Basement waterproofing involves techniques and materials used to prevent water from penetrating the basement of a house or a building. Waterproofing a basement that is below ground level can require the application of sealant materials, the installation of drains and sump pumps, and more.
Historic paint analysis, or architectural paint research, is the scientific analysis of a broad range of architectural finishes, and is primarily used to determine the color and behavior of surface finishes at any given point in time. This helps us to understand the building's structural history and how its appearance has changed over time.
Fort Anderson is a mid-19th-century earthen fort in the lower Cape Fear Region of North Carolina, located over the ruins of the colonial town of Brunswick in Brunswick County. It was built as a Confederate Fort by major general Samuel Gibbs French during the American Civil War. The fort was pivotal in protecting the Cape Fear River inlets and Wilmington upstream. Earthen batteries comprise the fort and were used as platforms and shields for the Confederate cannons. Beneath some of the earthworks were "bombproofs," shelters used by troops during enemy bombardment. The Confederacy decided to build forts around the Cape Fear River to protect the port of Wilmington from the Union blockade. During the Civil War, blockade runners brought supplies such as iron, guns, and ammunition to the Confederacy. The purpose of the fort was to hinder movement of Union ships, and to serve as a dropping off point for blockade runners fortunate enough to make it up the mouth of the Cape Fear River. Fort Anderson was built on the ruins of Brunswick Town and was originally named Fort St. Philip, after the ruins of the Revolutionary period church nearby. The name was changed to honor Col. George B. Anderson.
Copper slag is a by-product of copper extraction by smelting. During smelting, impurities become slag which floats on the molten metal. Slag that is quenched in water produces angular granules which are disposed of as waste or utilized as discussed below.
Flexible solar cell research is a research-level technology, an example of which was created at the Massachusetts Institute of Technology in which solar cells are manufactured by depositing photovoltaic material on flexible substrates, such as ordinary paper, using chemical vapor deposition technology. The technology for manufacturing solar cells on paper was developed by a group of researchers from the Massachusetts Institute of Technology with support from the National Science Foundation and the Eni-MIT Alliance Solar Frontiers Program.
The Frontier series is the seventh series of banknotes of the Canadian dollar released by the Bank of Canada, first circulated in 2011. The polymer banknotes were designed for increased durability and to incorporate more security features over the preceding 2001 Canadian Journey series. The notes feature images that focus on historic Canadian achievements and innovation. Printed on polymer, the 2011 Frontier series was the first series issued by the Bank of Canada printed on a material other than paper. The 2011 Frontier series was followed by the 2018 series.
Waste House is a building on the University of Brighton campus in the centre of Brighton on the south coast of England. It was built between 2012 and 2014 as a project involving hundreds of students and apprentices and was designed by Duncan Baker-Brown, an architect who also lectures at the university. The materials consist of a wide range of construction industry and household waste—from toothbrushes and old jeans to VHS cassettes and bicycle inner tubes—and it is the first public building in Europe to be built primarily of such products. "From a distance [resembling] an ordinary contemporary town house", Waste House is designed to be low-energy and sustainable, and will be in continuous use as a test-bed for the university's design, architecture and engineering students. The building has won several awards and was shortlisted for the Royal Institute of British Architects' Stephen Lawrence Prize in September 2015.
References
- ↑ Brown, Lee and Chris; Lee and Chris Brown. "Interior Design Construction Information on Building Foundations - The Substrate". Dezine Holdings Ltd.
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