Time utilization rate (TUR) of NTI-PGDE Students in self-study: the case of Port Harcourt study centre

Author(s):  
N M Abraham
2014 ◽  
Vol 1037 ◽  
pp. 322-326
Author(s):  
Hui Hua Shi ◽  
Hui jin Chen ◽  
Qing He

To make full use of green time of each phase to alleviate congestion in urban isolated intersections, an optimization algorithm of real-timing signal control is proposed. By monitoring traffic flow at the isolated intersection, the average utilization rate of green time of each phase is calculated. The green time of each phase is then adjusted automatically to maintain a balanced green time utilization rate with the presented optimization algorithm. Simulation results indicate that the average delay and the queue length of the presented algorithm are less than the fixed-time signal plan at peak times, and the efficiency of the intersection traffic is improved.


2020 ◽  
Author(s):  
Jianshe Linghu ◽  
Jinhua Chen ◽  
Jianbin Zhou ◽  
Wangang Jiang

Abstract Background: As an important energy source, coalbed gas (CBG) has been widely used. However, the allocation system of CBG resources is not perfect. During the utilization process, a large amount of CBG is discharged into the air, causing environmental pollutionMethods: In this study, we proposed a “full spectrum-domain-time” CBG utilization model, including full spectrum CBG utilization technology and full domain CBG supply, In addition, based on time series algorithms, real-time prediction of the demand for CBG, grasp the characteristics of time changes in demand, and scientifically allocate resources, that is, “full-time” regulation. Taking Yangquan Coal Group, Shanxi Province, China, as a case study, introduced the application of the “full spectrum-domain-time” utilization model in the enterprise, and at last assessed the achievement of the model application. Results and Conclusions: The time series algorithm can be used to predict CBG demand in different regions of the mining area. Driven by this model, both the total CBG and low-concentration CBG utilizations in the Yangquan Coal Group increase year after year, making it promising to reach 77.15% of CBG utilization rate and indicating that application of the model has made great accomplishment.


1977 ◽  
Vol 5 (1) ◽  
pp. 5-8 ◽  
Author(s):  
A. Frances Pearlmutter ◽  
Fishel A. Pearlmutter

2021 ◽  
Vol 13 (9) ◽  
pp. 4855
Author(s):  
Junheng Yang ◽  
Xiaodong Zang ◽  
Qiang Luo ◽  
Liming Shao

Roadside parking systems plays an important role in the planning and design of parking spaces, parking management and operation, and ensuring the safety of passengers. Firstly, we proposed a traffic wave theory and an avoidance logic algorithm to analyze the interaction mechanism of the roadside parking system in a rail-integrated transport hub. Moreover, we researched the evaluation indexes of the stability of roadside parking systems via two new concepts, namely static roadside parking time and dynamic roadside parking time. We found these improved the algorithm of the time utilization rate of the berth. Secondly, the coupling relationship between parking rate, delay and time utilization of berth was also discussed, and mathematical models of stability of the curb parking system were established. Furthermore, the feasibility of models was verified by multi-agent simulation through the VISSIM simulation platform. Finally, a new rail-integrated transport hub was taken as a practical case and studied alongside the simulation of the stability of curb parking system. Our study concluded that the curb parking system was ultimate stable when the time utilization rate was 37.5% and the parking rate was 91.2%. The results of these studies will provide theoretical support for designing curb parking berths in rail-integrated transport hubs.


Author(s):  
Ta-Hsin Li ◽  
Juhnyoung Lee

Incident management or resolution services for the information technology (IT) infrastructure and software of large enterprises are labor-intensive operations. Because incidents have to be resolved in timely manner, performance targets are often set regarding the time to respond and the time to resolve for incident tickets. To meet these targets, adequate staffing is critical. At the same time, utilization rate of the staff must also be taken into account, because extra cost is often associated with an underutilized workforce. The management of IT incident resolution services always faces the question: how to properly staff a given operation, especially when the volume of service requests is expected to rise. Queuing models can be used to help address such questions. This chapter reviews the basic concepts in queuing models and discusses some practical issues in the application of queuing models to the capacity planning and management of IT incident resolution services.


2020 ◽  
Vol 58 (3) ◽  
pp. 171-200
Author(s):  
Seol Mi Jeong ◽  
Eun Sun Na ◽  
Young Rong Kim ◽  
Ji-Hyun Suh ◽  
Chae Yoon Song ◽  
...  

2015 ◽  
Vol 7 (2) ◽  
pp. 1-18
Author(s):  
Maedeh Dabbaghianamiri ◽  
Farhad Ameri ◽  
Jesus Jimenez

Manufacturing supply chains are increasingly becoming agile to keep up with the rapid changes in the market. Ability to assess and select new suppliers quickly is a necessity for rapid formation of agile supply chains. The Digital Manufacturing Market (DMM) was proposed as a virtual market for trading manufacturing services. In the DMM, buyers and sellers are represented by intelligent software agents. The DMM enables autonomous deployment of service-oriented supply chains from a pool of suppliers that are distributed geographically. In this paper, a simulated model of the DMM is proposed and implemented. The objective is to evaluate the performance of the market under different scenarios. The metrics used for evaluating the performance of the market include average customer wait time, utilization rate of the suppliers in the system, the number of matched services in a given time period, and the overall score of the created supply chains. The results show that a combination of dynamic capacity adjustment and discount policy improves the performance of the market.


1989 ◽  
Vol 53 (2) ◽  
pp. 139-141
Author(s):  
RE Watson ◽  
J Hollway ◽  
TB Fast
Keyword(s):  

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