Reliance on the expert estimates method in engineering cost analysis of measuring instruments in development stage

1974 ◽  
Vol 17 (3) ◽  
pp. 466-469
Author(s):  
G. M. Bratishcheva ◽  
I. D. Matsevko
2018 ◽  
Vol 20 (5) ◽  
pp. 479-511 ◽  
Author(s):  
David Espinoza ◽  
David Reed

Purpose This paper aims to compare the costs of deploying different wireless terrestrial broadband technologies in the Andes and Amazon Regions of Peru. These areas are representatives of different and challenging geographic regions throughout the globe that currently are severely underserved or unserved for vital broadband services necessary to bridge the “Digital Divide”. Design/methodology/approach The broadband technologies studied include Wi-Fi, Worldwide Interoperability for Microwave Access (WiMAX), long term evolution (LTE), TVWS and new stratospheric platforms (super-pressure balloons). This study conducts a technical analysis (design and simulation) of wireless broadband networks, and a bottom-up engineering cost analysis to estimate and compare the deployment and operating costs of the networks over a 10-year period. The analysis also identifies potential regulatory barriers to deployment associated with spectrum allocation licenses and overbooking requirements intended to improve quality of service. Findings Comparison of the capital and operating expenses of these options over a 10-year period finds that LTE and Wi-Fi can be the lowest cost alternatives, though significantly, stratospheric balloons have the lowest initial costs for the first few years and can factor as a low-cost broadband catalyst early in deployment. Finally, the lowest cost technology broadband roadmap for the 10-year period is presented, which includes using stratospheric balloons (carrying micro-LTE base stations) for the first years and deploying complementary terrestrial LTE networks for the rest of the 10-year period. Originality/value This study presents detailed technical and engineering cost analysis results of wireless access network deployments, including advanced wireless technologies and new unmanned aerial systems, to expand broadband services to rural areas in mountainous (Andes Region) and rainforest (Amazon Region) geographies to reduce the digital divide in emerging countries. Results aim to aid governments, regulators, internet service providers (incumbents and competitive) and content providers to assess current alternatives to expand broadband service in these rural areas.


2010 ◽  
Vol 34-35 ◽  
pp. 1258-1262
Author(s):  
Zhi Min Hu ◽  
Jun Tang

Electronic engineering budget software provides a powerful tool for the electronic engineering cost analysis, reduces the tedious hand-written budget work of the Engineer. However, to break down the project, and input into project budget software are still time-consuming works. This thesis identifies electronic engineering construction drawings using image recognition technology, automatically calculates the engineer quantities in accordance with the semantic properties of the image pixel, and finally designs electronic engineering budget software based on construction drawing recognition technology. Software application shows that the time of budget book using PRBudget is only 1% of manual preparation, and the average error of calculate is 3.89%, so it can apply to practical engineering.


Food Industry ◽  
2017 ◽  
Vol 3 (2) ◽  
pp. 70-77
Author(s):  
L.A. Majurnikova ◽  
◽  
A.I. Urzhumova ◽  
M.N. Klishina ◽  
◽  
...  

2019 ◽  
Vol 9 (2) ◽  
pp. 163-180
Author(s):  
Agus Suyatna ◽  
◽  
Viyanti Viyanti ◽  
Doni Andra ◽  
Ismi Rakhmawati ◽  
...  

The COVID-19 pandemic has forced the implementation of lectures at universities to be fully carried out online or distance learning (d-learning). On the course that have sub- learning achievements of performance assessment, they experience many obstacles in achieving the learning objectives of that domain. The purpose of this study was to develop an online d-learning model for the Physics Instrumentation course based on Moodle that was valid to optimize performance skills, effective, and have high practicality for students of the Physics Education Study Program. The research method used R&D. The development procedure was carried out based on the ADDIE model covering five main activity stages, which are analysis, design, development, implementation, and evaluation. In this article, is reported until development stage. Data was collected using a questionnaire distributed using google forms. Data analysis included needs analysis, design suitability test, content/material test, construct test, language, and product readability test. The results of this study concluded that online d-learning model based on Moodle for Physics Instrumentation course was valid for optimizing the performance skills of students of the Physics Education Study Program because it had learning activities of reading e-Modules, watch videos of practice procedures and how to use measuring instruments, performing measurement simulations using virtual instruments, working on the task of making simple instruments with stages of activities according to the Engineering Design Process (EDP) model, discussing procedures for using the most appropriate measuring instruments, self-reflection on the materials that have and not been mastered and follow-up plans.


Sign in / Sign up

Export Citation Format

Share Document