cyclic and post cyclic behaviour

... and Sonneratia alba were surveyed and studied using physical experiments and numerical simulations These two species are common in the coastal and riverine landscape in Malaysia, Singapore, and ... different locations A, B, C and D in the uniform flow region The readings were taken at x=7.0 m in Exp P1.1, P2.1 and P3.1, and at x=7.0 m and x=7.2 m in Exp P1.2, P2.2 and P3.2 137 Figure ... species and topography Mangrove forests are distributed in the inter-tidal region between the sea and the land in the tropical and subtropical regions of the world between approximately 30° N and...

Ngày tải lên: 09/09/2015, 11:10

... Compressor systems and operations • Heat exchanger and cooling tower systems and operations • Steam generation and furnace systems and operations • Reactor systems and operations Key concepts and learning ... wear unevenly and push the flow-control element down 30 Globe Valves Hand Wheel Nut Washer Figure 2.5 Globe Valve Components Hand Wheel Yoke Sleeve Stem Gland Nut Gland Bolt Gland Bolt Pin Gasket ... piping, tanks, and vessels • Pumps, compressors, and simple systems • Turbines and motors • Heat exchangers, cooling towers, and simple systems • Steam generation, fired heaters, and systems •...

Ngày tải lên: 15/08/2013, 07:50

... very pronounced between 950° and 1,000°F (510°C and 537.77°C) For example, at 950° and 1,000°F (510°C and 537.77°C), the strength of low-carbon steel is about one-third and one-sixth, respectively, ... codes and specifications Inspection Frequency and Extent The frequency and extent of inspection depend on factors such as pressure, temperature, corrosive action of the materials handled, and materials ... box and packing gland hold packing firmly against the shaft and casing A slight bit of internal leakage keeps the packing lubricated and cool The packing material, located between the casing and...

Ngày tải lên: 16/08/2013, 15:29

... have a flexible pressure range and overall capacity, low power cost, and high efficiency rating They can handle density and gas composition changes, and small volumes and can deliver high pressures ... Membranes are designed to be durable and tough and able to withstand high temperatures and a variety of conditions Diaphragm compressors can generate very high pressures and are used to compress hydrogen, ... Shutdown, and Troubleshooting of Compressor Systems Tables 5.1 and 5.2 illustrate typical startup and shutdown procedures Tables 5.3 and 5.4 illustrate troubleshooting charts for identifying and solving...

Ngày tải lên: 19/08/2013, 10:47

... hold the baffles in place and prevent vibration and excessive tube movement Nozzles and Accessory Parts Shell -and- tube inlet and outlet nozzles are sized for pressure drop and velocity considerations ... shell and tube, reboiler, plate and frame, air cooled, and spiral The shell -and- tube heat exchanger is the most common in the process industry Shell -and- tube heat exchangers are designed to handle ... between them and how each applies to heat exchangers Which is (are) the most critical and why? Draw and label a hairpin heat exchanger Draw and label a shell -and- tube heat exchanger Draw and label...

Ngày tải lên: 20/08/2013, 10:39

... water and steam flow rates and temperatures and water level in the boiler The operator also checks for smoke and checks burner and flame pattern The operator maintains good housekeeping and unit ... the trap and comes into contact with the bellows Condensate causes the bellows to contract and open Steam causes the bellows to expand and close Bellows traps can handle condensate and noncondensable ... Furnaces Broken Supports and Guides Broken supports and guides tend to fall to the furnace floor and result in sagging or bowing tubes The falling supports and guides can also hit and damage a burner...

Ngày tải lên: 21/08/2013, 10:47

... material codes, and steam traps Pumps and Tanks Pumps and tanks come in a variety of designs and shapes Common pump and tank symbols are shown in Figure 12.11 Compressors, Steam Turbines, and Motors ... technicians and instrument and electrical, mechanical, safety, and engineering personnel In order to read a P&ID, the technician needs an understanding of the equipment, instrumentation, and technology ... identify instruments and vessels and to describe the primary flow path through a unit Foundation drawings—concrete, wire mesh, and steel specifications that identify width, depth, and thickness of...

Ngày tải lên: 23/08/2013, 14:30

... excessive pressure drops, and impurities in the feed or product streams The type and quantity of instrumentation are usually determined by past data and experience and from research and development Reactor ... many existing industries and created new ones The steel and metal fabrication and manufacturing, glass, machining, rubber, petroleum, concrete and stone industries, and many others had to develop ... relief valves and alarms, high-temperature alarms and emergency cooling, fire control systems, and toxic chemical detection systems are available for most hazardous conditions and should be installed...

Ngày tải lên: 23/08/2013, 14:47

... adhesives; hard and soft plastic; plastic fibers and fabric; and resistant, decorative, and transparent plastic Various methods are used in this process In extrusion, solid resins are melted and pushed ... adhesives; hard and soft plastic; plastic fibers and fabric; and resistant, decorative, and transparent plastic Various methods are used in this process In extrusion, solid resins are melted and pushed ... return head and is designed to expand (float) inside the shell as temperature rises Floating-roof tank—has an open top and a pan-like structure that floats on top of the liquid and moves up and down...

Ngày tải lên: 27/08/2013, 07:28

... December and January were 116 MTCO2e and 122 MTCO2e, during July and August were both 45 MTCO2e For Duluth (7), during December and January were 122 MTCO2e and 129 MTCO2e, during July and August ... people (1291) and related ventilation and, to a lesser amount, the load from internal equipment and lights For example, the hospital average lighting and plug loads were 12.68 W/m2 and 23.18 W/m2, ... along with the “Machinery and Engines” and “Air conditioning, Refrigeration, and Warm Air Heating Equipment” for the appropriate industry and sector categories Results and discussion The following...

Ngày tải lên: 05/09/2013, 15:28

Ngày tải lên: 15/10/2013, 16:37

... polymerase activity and 3′→5′ proofreading activity and is supplied with its own unique buffer and also with ‘HiSpec Additive’, which reduces smears, primer-dimers and spurious bands that are associated ... isolation and first-strand cDNA preparation There are a number of ways to isolate RNA for reverse transcriptase applications Standard methods include the lysis of cells and tissues, and extraction ... items for PCRs These include, 0.5 and 0.2 ml polypropylene tubes and 96-well microtiter plates, glass slides, glass and plastic capillaries and pipette tips Tubes and microtiter plates are designed...

Ngày tải lên: 25/10/2013, 22:20

Ngày tải lên: 28/10/2013, 19:51

... include amplifier [11] and oscillator [12] design principles, power supplies and voltage regulation [13], and different diode detectors Some understanding of elementary logic design and microwave materials ... task to be handled by a specific RF design and subsequently try to figure out what kind of equipment is needed and how it should be organized My emphasis is on processes and phenomena, and I often ... of inbound and outbound signals and the propagation path in between First, the chapter provides some information about current standardization and regulation schemes both for military and commercial...

Ngày tải lên: 05/11/2013, 12:15

... harmonisation and standardisation of products and is based on: - mandatory essential health and safety requirements (which must be met before machinery is placed on the market), - voluntary harmonised standards ... systems, etc) • B2 standards Standards applying to emergency stop safety devices, including twohanded control stations (EN 574), safety guards (EN 418), etc • C standards Safety standards stating ... non-exhaustive scope of the standards A Fig Safety standards 165 7 Personnal and machines safety 7.3 European legislation The figure lists the main European safety standards Standards Type Subject EN...

Ngày tải lên: 15/02/2014, 08:44

... ARKANSAS STATE HIGHWAY AND TRANSPORTATION DEPARTMENT Page STANDARD BID CONDITIONS H-13-136P ACCEPTANCE AND REJECTION: The Arkansas State Highway and Transportation Department (AHTD) ... Invitation, it is understood and agreed that any item offered or shipped on this bid shall be newly manufactured, latest model and design, and in first class condition; and that all containers shall ... services elsewhere and to charge full increase, if any, in cost and handling to defaulting vendor Applicable bonds may be forfeited 14 ETHICS: “It shall be a breach of ethical standards for a person...

Ngày tải lên: 15/02/2014, 13:20

... orthotics, and supplies (DMEPOS) Under Medicare Part B, physicians and suppliers submit both assigned and non-assigned claims for these services and items For assigned claims, physicians and suppliers ... awareness of the difference between assigned and non-assigned claims and participating and non-participating suppliers, and if they compared prices and services among suppliers Questions we asked ... educate beneficiaries on the options and consequences of assigned and non-assigned claims and purchasing medical equipment and supplies from participating and non-participating suppliers We suggest,...

Ngày tải lên: 21/02/2014, 09:20

... standards, regulations, and the General Duty Clause Occupational Safety and Health Administration Contents Introduction OSHA Standards National Consensus Standards Safeguarding Roll-Forming and ... designed and protected foot pedals, and Hand-feeding tools Ensure that proper safeguarding and lockout/ tagout procedures are developed and implemented for power press brakes Train and supervise ... the American National Standards (ANSI B65.1 and ANSI B65.2) for web- and sheet-fed printing presses and binding and finishing equipment, respectively Also, interlock guards and presence-sensing...

Ngày tải lên: 21/02/2014, 09:20