Platforms landing

Borings conducted from fixed, specially erected platforms land exploration equipment and techniques used by the petroleum industry to design pile foundations in water depths in the range of 6-15 m... 

Riser height means the vertical distance from the top of a tread to the top of the next higher tread or platform/landing or the distance from the top of a platform/landing to the top of the next higher tread or platform/landing. 

In this section we describe hydrocarbon processing in preparation for evacuation, either from a production platform or land based facilities. In simple terms this means splitting the hydrocarbon well stream into liquid and vapour phases and treating each phase so... 

The function of offshore production facilities are very much the same as those described for land operations. An offshore production platform is rather like a gathering station hydrocarbons have to be collected, processed and evacuated for further treatment or storage. However, the design and layout of the offshore facilities are very different from those on land for the following reasons ... 

Artificial islands could be regarded as platforms but fall somewhere between land and offshore facilities. 

Fig ure 5-21. This picture shows the rotor blades from the inlet end. Root design is a four-land fir-tree type. A lock pin on each root platform locates the blade axially in the disc. 

Sacrificial anodes Small land based schemes and for avoidance of interaction problems. Marine structures, e.g. offshore platforms High soil/water resistivities and small driving e.m.f. may require a large number of anodes Reasonably uniform Cannot be applied in high-resistivity environments... 

Most of Australia s arid and semi-arid regions consist of a highly weathered, extremely old land surface. In the western Platform Archaean... 

However, the fertile land is not the only star of the delta. The bays also play an important role in the economy of this delta. Shellfish culture has been well developed in the shallow waters of the two aforementioned bays, and has become the second economic activity of the area after agriculture. In the Ebro delta, there are currently around 164 platforms for the production of mussels and oysters, 74 in Fangar bay (northern), and 90 in Alfacs bay (southern). Annual production for both bays is 3,000 tons of mussels and less than 1,000 tons of oysters [15]. 

Roling N (1994) Platforms for decision-making about ecosystems. In Fresco L, Stroosnijder L, Bouma J, Van Keulen H (eds) The future of the land mobilising and integrating knowledge for land use options. Wiley, Chichester... 

Gulf of Mexico, Eugene Island Block 190, Helicopter Crash into Platform, Fire Helicopter flew into leg of platform and crashed on landing pad 14 Fatalities, Helicopter destroyed, platform damaged... 

For different operational purposes the weapon system can be made available on a variety of platforms — as a towed trailer, on a self-propelled land vehicle, or mounted permanently on a ship or in a static air defense gun emplacement. The main functional units are the same in each case, however, and the description that follows relates to the towed trailer version of the system... 

A final consideration in selecting a mixture of power generation or direct drive prime movers is exhaust ductwork. If a platform is surrounded by gas-combustion turbine drivers exhausting vertically, hot gases may create hazards at some wind conditions. Ductwork may need to be run Irom the exhaust to platform edge this should be minimized to assist area classification, helicopter landing patterns, and expense. 

Because of vibrations, power stability, and particularly corrosion, commercial laboratory robotic systems available today would have problems on ships. This problem provides an opportunity for research engineers to develop means to modify some sections of the ship to improve power and platform stability. Environmental constraints of a sea-based system were never factored into the design of today s laboratory robots, but the systems could be modified somewhat to reduce these problems. For now, robots would be most feasible for land-based measurements. In the future, however, robots could be important for at-sea measurements, because continuous or repeated measurements are often made over the course of many days. 

Applications over die past several years have included guidance sysLem parts, such as gimbals, gyroscopes, stable platforms, housings, mirrors, aircraft brakes, and accelerometers. In advanced (U.S.) land-based nuclear missiles, there is a precisely machined beryllium sphere, floating, warmed and protected, in a fluid bath. 

Cathodic protection has many applications, e.g. in refineries, power stations, gas, water, and oil utilities on marine structures, e.g. jetties, piers, locks, offshore platforms, pipelines, ships hulls, etc. and on land structures, e.g. buried pipeline, storage tanks, cables, etc. For each use, the cathodic protection system requires careful design, either impressed current, sacrificial anodes, or a combination of both may be chosen. There may also be other protection systems, e.g. paint, the nature of which will affect the design parameters and must be taken into consideration. 

Fig. 5.7 (A) Arrestin binds to the phosphorylated receptor and deactivates the receptor. (B) Arrestin recruits clathrin to the receptor-arrestin complex and promotes receptor internalization through clathrin-coated pits. Clathrin is like the deck of an aircraft carrier, forming a platform where the receptor-arrestin complex can land . After landing , the receptor-arrestin complex Is transported by the carrier to its destination in the cell. Moreover, arrestin recruits the cytosolic c-Src tyrosine kinase to the arrestin-receptorcomplex and links receptor desensitization to the activation of the MAP kinase signalling pathway. (According to Zuker and Ranganthan. Reproduced with permission of the authors and Science.)...

In the last half of the 1990s, NASA sent several probes to Mars that were unlike anything seen before. The Mars Pathfiirder mission landed on the red planet on July 4, 1997, on the rocky flood plain Ares Vallis. After landing the Pathfinder craft unfurled and a 23-pound, six-wheeled remote roving vehicle, named Sojourner, crawled off the platform and onto the planet s surface, while Pathfinder itself raised a camera arm to a height of five feet. 

The flowers of mints are bilaterally symmetric. Because they are mostly pollinated by insects, mints have relatively brightly colored, nectar-rich flowers usually grouped into a larger inflorescence The lower, flised petals of the flower provide a platform for pollinators to land on called a lip (or in Latin, labia, from which the family name Labiatae is derived). Most species in the mint family have bisexual flowers, containing both male (staminate) and female (pistilate) organs. The fruits are small, one-seeded nutlets. 

Pillow tanks, constructed of polymers and heavy fabrics, are usually used to store oil recovered on land. These are placed on a solid platform so that rocks cannot puncture the tank when full. Pillow tanks are also sometimes used on the decks of barges and ships to hold oil recovered at sea. Oil recovered on land is often stored in stationary tanks built for other purposes, and in dump trucks and modular containers, lined with plastic. Recovered oil can also be temporarily stored in pits or berms lined with polymer sheets, although this open type of storage is not suitable for volatile oils. 

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