introduction to mangrove hydrodynamics and the present study

... CHAPTER-1 INTRODUCTION TO MANGROVE HYDRODYNAMICS AND THE PRESENT STUDY 1.1 General Description of Mangrove Hydrodynamics Mangroves, defined as an assemblage of trees and shrubs that grows in the edge, ... in the previous section have been conducted to study the mangroves and the hydrodynamics in mangrove swamps, there are glaring lacks of detailed velocity profile and turbulent structure in their ... observed data due to the considerably difficulty in mangrove field measurements Therefore, the adopted strategy for further advancement in mangrove hydrodynamics research is to study the mangrove roots...

Ngày tải lên: 09/09/2015, 11:10

... throttling service The disc is designed to fit snugly into the seat and stop flow Process fluid enters the globe valve and is directed through a 90° turn to the bottom of the seat and disc As the fluid ... of the gate valve is the handwheel The handwheel is attached to a bushing, which is attached to the threaded stem As the handwheel is turned counterclockwise, the stem in the center of the handwheel ... around the stem The packing gland is a device used to compress and secure the packing material into the stuffing box The packing gland nuts are designed to be evenly tightened by an operator to stop...

Ngày tải lên: 15/08/2013, 07:50

... through the screen and into the pipe Pressure in the water pocket causes the water level to pass through the screen and up the pipe The water level will typically stop before it reaches the top of the ... valve) is securely attached to the bottom of the jet A leather seal is located between the check and the jet The jet is secured to the drop pipe and lowered into the water pipe casing A specially ... cavity inside the casing of a pump The inlet is sometimes referred to as the suction eye Fluid comes into the center of the impeller and is spun toward the outside of the volute The inlet line...

Ngày tải lên: 16/08/2013, 15:29

... valves For example, when the piston moves to the right, the chamber to the left of the piston fills with gas, while the chamber to the right of the piston discharges The exact opposite 131 Chapter ... attached to a shaft, and the blading and shaft together make up the rotor Impulse or reaction movement occurs as the steam strikes the rotor, converting the steam energy into mechanical energy The ... directs the steam onto the blading, which is attached to the shaft The blading and shaft make up the rotor Movement occurs as the steam strikes the rotor, converting the steam energy into mechanical...

Ngày tải lên: 19/08/2013, 10:47

... sheet is fixed and the other “floats” inside the shell The floating end is not attached to the shell and is free to expand Reboilers are heat exchangers that are used to add heat to a liquid that ... type of fluid being handled, the amount and type of suspended solids in the system, the exchanger’s susceptibility to thermal decomposition, and the velocity and temperature of the fluid stream Fouling ... Exchangers the shell is designed to withstand the greatest temperature and pressure conditions The shell has inlet and outlet nozzles The total number and placement of nozzles will depend on the design...

Ngày tải lên: 20/08/2013, 10:39

... enters the bottom of 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 ... rests on the top of the condensate (Figure 9.9) A rod to the outlet valve attaches the float The position of the float determines the position of the valve As the level in the trap increases, the ... in the steam drops to the bottom of the inverted bucket, and gases escape out the air vent When the body of the bucket trap is full of condensate, the inverted bucket rests on the bottom The...

Ngày tải lên: 21/08/2013, 10:47

... process technician to be able to recognize the shell inlet and outlet and the tube inlet and outlet flow paths A heat exchanger with an arrow drawn through the body illustrates whether the tube-side ... includes start/stop switches, emergency circuits, and motor control centers Process technicians can use these diagrams to trace a system from the power source to the load Review of Basic and Specialized ... Motor Diesel Motor Figure 12.12 Compressors, Steam Turbines, and Motors to transfer heat energy between two process flows The cooling tower performs a similar function, but cooling towers and...

Ngày tải lên: 23/08/2013, 14:30

... fractionation tower Toluene is added to the tower as a dilutant A reflux stream also enters the top of the tower and returns CPD, BD, and toluene As the feedstock enters the packed tower, it cracks ... the feed through the reactor as the synthesis reaction occurs The reactor is mounted vertically, and flow moves clockwise through the tubes Special inhibitors are added to the feed to limit the ... DCPD to CPD The heavy, aromatic oil stays in the bottom of the tower and acts as a temperature stabilizer The overhead product is condensed and sent to a chilled mixing reactor The product on the...

Ngày tải lên: 23/08/2013, 14:47

... filters The solvents can be adjusted to the feedstock to maximize the efficiency of the filtering The two solvents used are toluene and methyl ethyl keytone (MEK) Toluene has the ability to dissolve ... solvents are recycled back to the process from the top of the slack wax evaporator The slack wax and lubricating oils are sent from the bottom of the slack wax evaporator to storage Summary Extraction ... wire-mesh screen to avoid loss of the particles The process flow through the bed can be from top to bottom or from bottom to top There are also connections for treating the bed during the regeneration...

Ngày tải lên: 27/08/2013, 07:28

... industry and sector categories Results and discussion The following section presents selected results from the study and provides discussion and analysis with regard to overall GHG emissions for the ... emission factors presented in Torcellini and Deru’s [23] The Source Energy and Emission Factors for Energy Use in Buildings” were used in this study to account for the source emissions The rate of ... highlighted the relative significance of commercial buildings and many of the issues related to GHG computations, such as the proper determination (and use) of upstream emission factors and the many...

Ngày tải lên: 05/09/2013, 15:28

Ngày tải lên: 15/10/2013, 16:37

... matched to the template is the 3′-end because this is the end of the primer that is extended by the DNA polymerase and is therefore most important for ensuring the specificity of annealing to the ... particular primer pair together, then it can be useful to mix these as a working stock Be careful when handling stock primer solutions that you not contaminate the stock with another primer or any ... DNA where the stalk of the Y is the GC-clamp and the tails are the single strands of the target region This Y-shaped molecule becomes entangled in the gel network and essentially stops migrating...

Ngày tải lên: 25/10/2013, 22:20

Ngày tải lên: 28/10/2013, 19:51

... available bandwidth to a minimum Then the question is more of finding a way to put all the data or other baseband information to be transmitted into the all-too-small corridor The other reason ... which either the field strength exceeds the breakdown value of the dielectric or the thermal heating starts to deform the insulation Lines other than TEM-mode lines are restricted in bandwidth and ... these tasks In some regions there seems to be a predefined set of bands across the entire usable spectrum reserved to scientific and military use Others have apparently preferred to rely on the...

Ngày tải lên: 05/11/2013, 12:15

... hand These two-handed controls include the controls themselves and an emergency stop device The four output contacts are monitored (C Fig.29) to control their interdependence A Fig 29 Two-handed ... brake), - for stop category 1: controlled stop at the power rate of the actuators concerned then power disconnection when standstill is reached The type of control component and its actuator must be ... action to preserve and protect the quality of the environment and the human health To achieve these objectives, there are European Directives which must be applied by plant operators and by manufacturers...

Ngày tải lên: 15/02/2014, 08:44

... such taxes These taxes should not be included in bid prices, but where required by law, will be paid by the AHTD as an addition thereto, and should be added to the billing to the AHTD The AHTD ... efficiency of operation will not be impaired, and to award bids to best serve the interest of the State PRICES: Unless otherwise stated in the Bid Invitation, the following will apply: (1) unit prices ... attachments to the bid EXCEPTIONS TO SPECIFICATIONS: Any exceptions to the bid specifications must be stated in the bid Any exceptions to manufacturer’s published literature must be stated in the bid,...

Ngày tải lên: 15/02/2014, 13:20

... frames and lenses, breast prostheses, and walkers While we did not ask the beneficiaries whether or not they considered these items to be “upgraded,” eyeglass frames and lenses and ambulatory aids ... participating and non-participating suppliers, and the availability of the Medicare Participating Suppliers Directory Another suggestion is that HCFA direct the DMERCs to add a notation to the Medicare ... amount for the standard item less 20 percent co-insurance and any outstanding deductible, and the beneficiary would pay the difference between the supplier’s charge for the upgraded item and 80 percent...

Ngày tải lên: 21/02/2014, 09:20

... work-piece while the other hand operates the machine For instance, if the stock is several feet long and only one end of the stock is being worked on, the operator may be able to hold the opposite ... consequently, the operator lost three fingers when his hand entered the point of operation The operator on the previous shift had reported to the supervisor that the operator placed his fingers close to the ... activated while the operator’s hand is in the point of operation The likelihood of this type of injury increases as the size of stock decreases and brings the operator’s hands closer to the point of...

Ngày tải lên: 21/02/2014, 09:20