A Study on the Interaction Correspondence between the Policy Planning and Operation of Community Currency: A Case Study on the Regional Gift Certificate Operation

2020 ◽  
Vol 27 (3) ◽  
pp. 182-203
Author(s):  
Hyuk Chul Kwon
Keyword(s):  
Policy Planning ◽  
Community Currency ◽  
Gift Certificate ◽  
Planning And Operation

Tai O Village

2016 ◽  
Author(s):  
Ken Nicolson
Keyword(s):  
Natural Disasters ◽  
Cultural Landscape ◽  
Integrated Approach ◽  
Policy Planning ◽  
Way Of Life ◽  
Strong Bond ◽  
Fishing Village ◽  
Salt Pans ◽  
The Village

Case study 4: TaI O Village is a scenic, stilted fishing village which is an excellent example of an organically evolved and associative cultural landscape. In addition to fishing, Tai O was renowned for its salt pans and production of shrimp paste. The physical fabric of the village is largely intact despite many threats and pressures for change over many generations. Despite recent attempts by government authorities to ‘revitalise’ the village for tourism, resettle the villagers from the stilt houses, as well as natural disasters, such as, typhoons, flooding, and devastating fires, the villagers have a very strong bond that allows them to rebound after each setback with a passion for conserving their way of life. Tai O offers a valuable contrast to the fortunes of Ping Shan and underlines the importance of adopting an integrated approach to conservation that ensures that the policy, planning, and project levels of intervention put the interests and aspirations of residents first.

scholarly journals Destination Estimation for Bus Passengers Based on Data Fusion

2020 ◽  
Vol 2020 ◽  
pp. 1-10
Author(s):  
Wusheng Liu ◽  
Qian Tan ◽  
Lisheng Liu
Keyword(s):  
Global Positioning System ◽  
Positioning System ◽  
Time Varying ◽  
Estimation Result ◽  
Bus Stop ◽  
Simulation Based ◽  
Global Positioning ◽  
Novel Method ◽  
Planning And Operation

The planning and operation of urban buses depend heavily on the time-varying origin-destination (OD) matrix for bus passengers. In most cities, however, only boarding information is recorded, while the alighting information is not available. This paper proposes a novel method to predict the destination of a single bus passenger based on bus smartcard data, metro smartcard data, and global positioning system (GPS) bus data. First, the attractiveness of each bus stop in a bus line was evaluated, considering the attractiveness of nearby metro stations. Then, the exploration and preferential return (EPR) model was employed to estimate the probability of a bus stop to be the alighting stop, i.e., the destination, of a passenger. The estimation result was obtained through a simulation based on the Monte Carlo (MC) algorithm. The effectiveness of our method was proved through a case study on the bus network in Shenzhen, China.

scholarly journals Incorporating Open/Free GIS and GPS Software in Power Transmission Line Routine Work: The Case of Crete and Rhodes

2017 ◽  
Vol 7 (1) ◽  
pp. 1316-1322 ◽  
Author(s):  
D. Pylarinos ◽  
I. Pellas
Keyword(s):  
Power Systems ◽  
Transmission Line ◽  
Power Transmission ◽  
Geographical Information ◽  
Routine Work ◽  
Global Positioning ◽  
Line Work ◽  
User Friendly ◽  
Planning And Operation

Geographical Information System (GIS) and Global Positioning System (GPS) software are widely gaining attention in power system planning and operation. Although commercial systems are increasingly being incorporated in power systems applications, they are yet to be fully incorporated in the routine work of utilities (and especially in the work of crews), due to several reasons such as cost, portability, connectivity, performance/speed, infrastructure etc. This paper focuses on incorporating certain open/free GIS and GPS software in routine transmission line work. The case study is the 150kV transmission systems of the Greek islands of Crete and Rhodes which show increased complexity due to certain localized factors such as Greek legislation, the diverse terrain/routes, the segmented design due to the network’s growth over the years (regarding both voltage levels and routes) and the use of different Coordinate Reference Systems (or Geodetic Systems) from the Greek state. The main goals of this work was to incorporate open/free software that provided limitless online access points, offline navigation and a user friendly design that wouldn’t require any additional training, programming etc. The basic scheme described in this paper can be followed to provide similar results in other applications.

scholarly journals Design of a Methodology to Evaluate the Impact of Demand-Side Management in the Planning of Isolated/Islanded Microgrids

Energies ◽  
2020 ◽  
Vol 13 (13) ◽  
pp. 3459
Author(s):  
Juan Carlos Oviedo Cepeda ◽  
German Osma-Pinto ◽  
Robin Roche ◽  
Cesar Duarte ◽  
Javier Solano ◽  
...  
Keyword(s):  
Dynamic Pricing ◽  
Demand Side Management ◽  
The Other ◽  
Energy Utilization ◽  
Demand Side ◽  
Optimal Dispatch ◽  
Cost Of Energy ◽  
The Impact ◽  
Planning And Operation

The integration of Demand-Side Management (DSM) in the planning of Isolated/Islanded Microgrids (IMGs) can potentially reduce total costs and customer payments or increase renewable energy utilization. Despite these benefits, there is a paucity in literature exploring how DSM affects the planning and operation of IMGs. The present work compares the effects of five different strategies of DSM in the planning of IMGs to fulfill the gaps found in the literature. The present work embodies a Disciplined Convex Stochastic Programming formulation that integrates the planning and operation of IMGs using three optimization levels. The first level finds the capacities of the energy sources of the IMG. The second and third levels use a rolling horizon for setting the day-ahead prices or the stimulus of the DSM and the day-ahead optimal dispatch strategy of the IMG, respectively. A case study shows that the Day-Ahead Dynamic Pricing DSM and the Incentive-Based Pricing DSM reduce the total costs and the Levelized Cost of Energy of the project more than the other DSMs. In contrast, the Time of Use DSM reduces the payments of the customers and increases the delivered energy more than the other DSMs.

scholarly journals Securing Annulus Abnormal Pressure Build-up (APB) with Polymer Plug; a Case Study

2020 ◽  
Vol 1 (2) ◽  
pp. 62
Author(s):  
Ganesha R Darmawan
Keyword(s):  
Operating Pressure ◽  
Gas Migration ◽  
Well Control ◽  
Well Integrity ◽  
Abnormal Pressure ◽  
Additional Challenge ◽  
Cement Plug ◽  
Planning And Operation ◽  
Integrity Issue

The life cycle of a production well was facing challenges related to well integrity issue where A-Annulus pressure tracking the tubing pressure and increased repeatedly above the Maximum Allowable Wellhead Operating Pressure (MAWOP). Several well control operations were executed to reduce A-Annulus abnormal pressure build-up (APB) with no success.Literature and well historical studies were performed in order to secure this well, normal bleed and lube was ruled out owing to several attempts already performed for more than a year, but the APB keep on appearing after 2-4 months. Bullheading is not a viable option to kill the well. Well securing planned and prepared with some options such as, mechanical barriers/plugs, cement plug or polymer plugs as temporary plug to avoid APB re-occurrence. There were some constrains in operation planning that need to be addressed carefully, with additional challenge of tight injectivity as if it was a closed system.The polymer plug successfully stops the gas migration to surface, and secured the well from any reoccurrences of APB. The details of well control histories, operation design and planning and operation execution with the complete results and evaluation will be presented in this paper.

scholarly journals Reliability Evaluation of Roy Billinton Test System

2021 ◽  
Vol 9 (4) ◽  
pp. 491-498
Keyword(s):  
Monte Carlo Simulation ◽  
Monte Carlo ◽  
Random Number ◽  
Test System ◽  
Random Number Generators ◽  
Reliability Indices ◽  
Continuous Power ◽  
Simple Systems ◽  
Planning And Operation

Reliability play's a major role at power system planning and operation. Reliability means continuous power supply to end users without outages. So in order to study reliability of any system we consider two methods which are Analytical and Monte-Carlo simulation. Analytical methods are mathematical models which gives numerical calculations for simple systems. Monte Carlo Simulation is a proposed method which is used in case of complex systems. RBTS BUS-2 test system is used as case study with DG’s at different locations and without DG’s to evaluate fundamental reliability indices, customer oriented indices SAIFI, SAIDI, CAIDI .Cost/worth indices such as EENS, ECOST and IEAR are calculated and compared by both Analytical and Monte-Carlo simulation. In Monte-Carlo time sequential technics indices are calculated by using random number generators with UP and DOWN states times of system elements.

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