The Astoria–Megler Bridge is a steel cantilever through-truss bridge in the Pacific Northwest region of the United States that spans the lower Columbia River. It carries a section of U.S. Route 101 from Astoria, Oregon, to Point Ellice near Megler, Washington. Opened in 1966, it is the longest continuous truss bridge in North America.
Marina Bay MRT station is an underground Mass Rapid Transit (MRT) interchange station on the North South (NSL), Circle (CCL) and Thomson–East Coast (TEL) lines in Singapore. Located in the Downtown Core district near Marina Bay, the station serves the Marina One Residences, Marina Bay Suites and the Marina Bay Financial Centre.
The Singapore River is a river that flows parallel to Alexandra Road and feeds into the Marina Reservoir in the southern part of Singapore. The immediate upper watershed of the Singapore River is known as the Singapore River Planning Area, although the western part of the watershed is classified under the River Valley planning area.
Marina Bay is a bay located in the Central Area of Singapore, surrounded by the perimeter of four other planning areas, the Downtown Core, Marina East, Marina South and Straits View. The area surrounding the bay itself, also called Marina Bay, is a 360 hectare extension to the adjacent Central Business District. It is also the new downtown of Singapore, built on Singapore's reclaimed land.
Bayfront MRT station is an underground Mass Rapid Transit (MRT) interchange station on the Downtown line (DTL) and Circle line (CCL). Located in the Downtown Core of Singapore, the station is underneath Bayfront Avenue and serves the main tourist attractions of Marina Bay Sands and Gardens by the Bay.
Anderson Bridge is a pedestrian bridge that spans across the Singapore River. It is located near the river's mouth in the Downtown Core Planning Area of Singapore's Central Area.
The Esplanade Bridge is a 261-metre-long (850 ft.) road bridge that spans across the mouth of the Singapore River in Singapore with the Esplanade - Theatres on the Bay on its northern abutment and the Merlion on the southern. The 70 metre-wide (230 ft.) low-level concrete arched bridge has seven spans and supports two four-lane carriageways and walkways along both sides.
The Milton–Madison Bridge is a continuous truss bridge that connects Milton, Kentucky and Madison, Indiana. It carries approximately 10,000 cars a day. The old structure was replaced with a completely new continuous truss which was constructed on temporary piers adjacent to the operational span between 2011 and 2012 and slid into place after demolition of the old span using a construction method called "truss sliding." The new crossing opened to vehicle traffic in April 2014, and a pedestrian sidewalk opened that October.
A beta helix is a tandem protein repeat structure formed by the association of parallel beta sheet in a helical pattern with either two or three faces. The beta helix is a type of solenoid protein domain. The structure is stabilized by inter-strand hydrogen bonds, protein-protein interactions, and sometimes bound metal ions. Both left- and right-handed beta helices have been identified. These structures are distinct from jelly-roll folds, a different protein structure sometimes known as a "double-stranded beta helix".
Marina Bay Sands is an integrated resort fronting Marina Bay in Singapore and a landmark of the city. At its opening in 2010, it was deemed the world's most expensive standalone casino property at S$8 billion (US$6.88 billion). The resort includes a 2,561-room hotel, a 120,000-square-metre (1,300,000 sq ft) convention-exhibition centre, the 74,000-square-metre (800,000 sq ft) The Shoppes at Marina Bay Sands mall, a museum, a large theatre, "celebrity chef" restaurants, two floating crystal pavilions, art-science exhibits, and the world's largest atrium casino with 500 tables and 1,600 slot machines. The complex includes three towers topped by the Sands Skypark, a skyway connecting 340-metre-long (1,120 ft) with a capacity of 3,902 people and a 150 m (490 ft) infinity swimming pool, set on top of the world's largest public cantilevered platform, which overhangs the north tower by 66.5 m (218 ft). The 20-hectare resort was designed by Moshe Safdie architects.
Collyer Quay is a road in Downtown Core, Singapore that starts after Fullerton Road and ends at the junction of Raffles Quay, Finlayson Green and Marina Boulevard. The road houses several landmarks namely, Clifford Pier, Change Alley, Hitachi Tower, Ocean Towers and Ocean Financial Centre.
Double helix may refer to:
The Marina Bay Financial Centre (MBFC) is a mixed-use development located along Marina Boulevard and Central Boulevard within the Downtown Core of Singapore. It consists of three office towers, two residential towers and retail space at Marina Bay Link Mall, occupying a 3.55-hectare (8.8-acre) site.
The Chula Vista Bayfront is a planned development on the San Diego Bay waterfront within Chula Vista, California, United States. The bayfront is undergoing major development under the project title Chula Vista Bayfront Master Plan, one of the largest waterfront planning efforts in the United States.
DP Architects Pte Ltd is a Singaporean multinational architectural and industrial design firm. Originally founded as Design Partnership in 1967, it became a private limited company in 1993 and now operates as a multi-disciplinary design consultancy. It is recognized as one of the largest architectural practices globally.
xDNA is a size-expanded nucleotide system synthesized from the fusion of a benzene ring and one of the four natural bases: adenine, guanine, cytosine, and thymine. This size expansion produces an 8 letter alphabet which has a larger information storage capacity than natural DNA's 4 letter alphabet. As with normal base-pairing, A pairs with xT, C pairs with xG, G pairs with xC, and T pairs with xA. The double helix is thus 2.4Å wider than a natural double helix. While similar in structure to B-DNA, xDNA has unique absorption, fluorescence, and stacking properties.
Duplex stainless steels are a family of stainless steels. These are called duplex grades because their metallurgical structure consists of two phases, austenite and ferrite in roughly equal proportions. They are designed to provide better corrosion resistance, particularly chloride stress corrosion and chloride pitting corrosion, and higher strength than standard austenitic stainless steels such as type A2/304 or A4/316. The main differences in composition, when compared with an austenitic stainless steel is that the duplex steels have a higher chromium content, 20–28%; higher molybdenum, up to 5%; lower nickel, up to 9% and 0.05–0.50% nitrogen. Both the low nickel content and the high strength give significant cost benefits. They are therefore used extensively in the offshore oil and gas industry for pipework systems, manifolds, risers, etc. and in the petrochemical industry in the form of pipelines and pressure vessels. In addition to the improved corrosion resistance compared with the 300 series duplex stainless steels also have higher strength. For example, a Type 304 stainless steel has a 0.2% proof strength in the region of 280 MPa (41 ksi), a 22%Cr duplex stainless steel a minimum 0.2% proof strength of some 450 MPa (65 ksi) and a superduplex grade a minimum of 550 MPa (80 ksi).
Marina One is a mixed-use development bounded by Marina Way and Straits View in Marina South located within the Downtown Core of the city-state of Singapore.
The Tabi'at Bridge is the largest pedestrian overpass in Tehran, Iran. The 270-metre (890 ft) bridge connects two public parks — Taleghani Park and Abo-Atash Park — by spanning Modarres Expressway, one of the main highways in northern Tehran. The word tabiat means "nature" in the Persian language.
Atal Pedestrian Bridge is a pedestrian triangular truss bridge at Sabarmati Riverfront on Sabarmati river in Ahmedabad, Gujarat, India. It has a design inspired by kites. Inaugurated in 2022, it is 300 metres (980 ft) long and 10 metres (33 ft) to 14 metres (46 ft) wide.
