flow limiters Articles | Environmental XPRT

Transregional effects of knowledge management: implications for policy and evaluation design

This paper deals with the potential and prerequisites of transregional knowledge flows as input for economic development strategies in less favoured regions and their consequences for evaluation studies. Using evolutionary approaches to explain emergence of and limits to transregional knowledge flows, four different strategies to build up competitive advantages are discussed and connected to ...

Feb. 3, 2004

By Inderscience Publishers

Linking North Slope of Alaska climate, hydrology, and fish migration

Arctic grayling (Thymallus arcticus) have a life-history strategy specifically adapted to the extreme climate of the North. These fish migrate to spawning grounds just after breakup in the spring, then migrate to feeding sites in early summer, and finally in the fall migrate back to their overwintering sites. The Kuparuk River is a perennial stream originating in the northern foothills of the ...

Jul. 20, 2015

By IWA Publishing

Real options econometrics for aggregate tanker investment decisions

Understanding the limitations of the Discounted Cash flow Methodology (DCF) has resulted in increased usage of the real option analysis for ship investment decisions under uncertainty. In this paper, our contribution is two-fold: We propose an equilibrium model for explaining aggregate investment behaviour in the new building industry for tankers and provide a framework for testing the real ...

Apr. 15, 2008

By Inderscience Publishers

BUYERS SUPPLIER SURVEY

Conducting in-depth buyer and supplier assessment survey can help you meet your strategic and tactical sourcing needs, helping you reduce the total cost and time of procurement, broaden supplier mix and increase negotiation information support. When supplier performance deteriorates, such as insufficient cash flow, credit limit, capital shortage, and even bankruptcy plan, these financial ...

Oct. 31, 2019

By China Red Star Limited

OGI Range – Long Distance Applications

A discussion of range for OGI technology is more relevant for the OGI fixed solutions, such as EyeCGas 24/7 series of products, where the camera is expected to automatically alert for leaks from longer distance (>100 meters). Since LWIR uncooled OGI cameras are typically far less sensitive than cooled MWIR OGI cameras, they are not the preferable choice for an OGI fixed solution when larger ...

Oct. 24, 2020

By EyeCGas -OGI by OPGAL

Differentiation of Mass and Flow Limited Rainfall-Runoff Events for Overland Flow from Small Urban Catchments

ABSTRACTWater quantity and quality are coupled phenomena in urban rainfall-runoff. These rainfall-runoff quantity and quality relationships have been significantly altered by the built environment and associated anthropogenic activities. Understanding the relationship between quantity and quality of urban overland flow for a given catchment facilitates development of in-situ wet weather control. ...

Oct. 22, 2006

By Water Environment Federation (WEF)

A large-scale hydroclimatological perspective on western European river flow regimes

A novel flow regime classification scheme was applied to 141 river basins across western Europe, providing more robust analysis of space–time variability in regimes and their driving hydroclimatological processes. Regime shape (timing) and magnitude (size) were classified to regionalise long-term average flow regimes and to quantify year-to-year variation in regimes for each basin. Six ...

Oct. 8, 2013

By IWA Publishing

Coupled solution of oil slick and depth averaged tidal currents on three-dimensional geometry of Persian Gulf

Abstract: In this paper, simulation of oil spill due to tidal currents in Persian Gulf is performed by coupled solution of the hydrodynamics equations and an equation for convection and diffusion of the oil. The hydrodynamic equations utilized in this work consist of depth average equations of continuity and motion in two dimensional horizontal planes. The effect of evaporation is considered in ...

Feb. 7, 2006

By Center for Environment and Energy Research & Studies (CEERS)

Performance of Residential Wastewater Treatment Technologies under New Stressing Conditions related to Lifestyle Changes

Over the past two decades, major changes in family lifestyles have been observed. People travel more, eat in restaurants more frequently and, in many families, both parents work outside the home. Based on information from Statistics Canada, in 1970, 31% of Canadian families had both parents working outside the home. In 1990, this percentage has risen to more than 70%. As well, the higher divorce ...

Sep. 12, 2011

By Premier Tech Aqua

Management of power transactions using particle swarm optimisation

In this paper, a particle swarm optimisation (PSO) technique has been proposed for congestion management in different market structures comprising pool model, mix of pool and bilateral contracts by change in generation, such that the line flow which violate the limit are alleviated and the system security is maintained. The first stage describes a technique for selection of suitable participating ...

Jul. 19, 2012

By Inderscience Publishers

Hart Building, Oklahoma City, Oklahoma - Case Study

Project Name: Hart Building Products: Gravelpave2 Applications: Parking lot City: Oklahoma City State/Province: Oklahoma Install Date: January 2013 Client: NA Install Size: 2,800 m2 (30,100 sf) Address: 720 W. Sheridan Designer: Hocker Group Contractor: Bishop Paving, Oklahoma City, Oklahoma, Owner Jason Bishop Directions: 720 W. Sheridan Location: Parking lot Photography: ...

Feb. 27, 2014

By Invisible Structures, Inc.

Fuzzy logic rule–based modelling of natural spring flow in a hilly catchment of Tehri–Garhwal district, Uttarakhand, India

This paper demonstrates how a fuzzy rule–based algorithm can provide reasonable weekly estimates of spring flow using limited climatological parameters. A fuzzy logic rule–based model (FLRBM) is developed to estimate the weekly spring flow in a hilly watershed. The average rainfall, evaporation, temperature and relative humidity were incorporated to verify their effects on spring flow. The effect ...

Apr. 11, 2014

By Inderscience Publishers

Evaluation of the Performance of three Bioretention Areas in North Carolina

ABSTRACT Three bioretention areas constructed in the piedmont and the coastal plain of North Carolina were monitored or will be monitored to determine their effect on water quality. The first bioretention area was constructed in clayey soils in the piedmont, at Graham High School. The other two were in sandy soils in the coastal plain in Rocky Mount and in Wilmington, NC. Several design factors ...

Oct. 13, 2007

By Water Environment Federation (WEF)

Optimal location of artificial recharge of treated wastewater using fuzzy logic approach

Increasing water demands in light of limited water resources have intensified exploitation and drawdown of groundwater. On the other hand, rising water demand has accelerated wastewater production. Therefore, urban wastewater management via artificial recharge may play a significant role in aquifer management. While site selection for artificial recharge projects is a major challenge, fuzzy ...

Jan. 31, 2017

By IWA Publishing

The Gerald Desmond Bridge Replacement Project - Case Study

Location: Long Beach, CA Owner: Port of Long Beach Engineer: SFI Project Revenue: $196,450.00 Project Timeline: 2019 Challenge: The new $1.5B Gerald Desmond Bridge at the bustling Port of Long Beach is the first cable-stayed vehicular structure built in California and must conform to rigorous seismic standards. The challenge was to create sufficient drawdown without lowering the ...

Sep. 18, 2019

By Griffin Dewatering Corporation

Headworks Screening for Smaller Plants

Water treatment facilities in smaller towns and villages, as well as treatment works supporting institutions, prisons, resorts or remote facilities, have difficult choices to make when selecting a headworks system. All require a solids control strategy, but lower flows and smaller budgets limit the available equipment options. A number of different types of equipment can be used to meet these ...

Sep. 20, 2016

By JWC Environmental

Advantages of renting your commercial equipment

Waste handling equipment When your business needs commercial equipment, such as compactors and balers, you have three options. One is to buy your equipment brand new, the other is to buy it second-hand, and the third option is to rent. Ultimately, in the long run, you will always pay more in rental costs if you opt to rent out the equipment you need for your business when compared with the ...

Oct. 31, 2019

By Phoenix Compaction Systems Ltd

Does the Mafia suppress entrepreneurship in Italy?

A great divide exists within Italy: the North is prosperous while the South remains relatively poor. The divide has persisted and regions have failed to converge, contradicting neo-classical growth theory. With this in mind, the following research aims to contribute toward the dialog pertaining to the divide and its persistence by discussing Mafia presence and entrepreneurship. Little has been ...

Oct. 1, 2013

By Inderscience Publishers

Business development

One of the primary advantages of the SVOffice geotechnical software suite is that it allows consulting firms to develop new areas of business and revenue streams. This aspect of the software has been demonstrated by Golder Associates Africa. The Midrand office approached SoilVision Systems Ltd. about one and a half years ago with the desire to increase their numerical modeling capabilities. In ...

Oct. 2, 2009

By SoilVision Systems Ltd.

Evaluation of radionuclide migration in the homogeneous system of a geological repository

The aim of this paper is to study radionuclide migration and release from a deep underground repository situated in a clay formation. An insight into the processes influencing the radionuclide transport in the near field and far field will be presented. For the calculation, a set of radionuclides has been chosen, considering the half-life, decay chains, capacity of the sorption, solubility limits ...

Jan. 3, 2006

By Inderscience Publishers

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