MULTI-CRITERIA DECISION ANALYSIS OF UP-TO-DATE CONSTRUCTION TECHNOLOGY

2016 ◽  
Vol 3 (1) ◽  
Author(s):  
Ruta Miniotaite
Keyword(s):  
New Technologies ◽  
Ideal Point ◽  
Construction Technology ◽  
Optimal Solutions ◽  
Construction Process ◽  
Technological Solution ◽  
Effective Technology ◽  
Preparation Phase ◽  
Materials Used ◽  
Technological Modeling

At the very moment various construction and projection firms offer to use all kinds of new technologies and its systems, structural decisions, proper materials used as well as work implementation methods, without paying any attention to the factors, effecting the choice of selecting the most effective technology of construction process. Having in mind that funds should be realized rationally, it is the matter of vital importance to measure the practical adaptability of technologies being used either they are new or have been used for many years to achieve the best technological decisions. In order to achieve the efficiency of the funds invested and diminishing construction duration as well as increasing its quality, various construction process technologies are developed and improved by using modern technical and informational tools, which are integrated into the stages of projection and construction. The paper analyzes the methods of multi-criteria alternative technological solution evaluation in construction environment. Methodology, which is used, allows to complex evaluate the efficiency of construction designed decisions at the stage of preparation phase. There has been done a practical technological modeling of installation process of concrete floor as well as there have been determined optimal solutions. In order to achieve the results mentioned, a method of proximity to an ideal point was used.

Research on Detail-Structure Construction Technology of Outside Heat Preservation of Exterior Walls

2014 ◽  
Vol 548-549 ◽  
pp. 1790-1794
Author(s):  
Xia Zhao ◽  
You Ping Ding ◽  
Xiu Yan Zhang
Keyword(s):  
Construction Technology ◽  
Air Conditioner ◽  
Construction Process ◽  
External Wall ◽  
Similar Construction ◽  
Preservation Technology ◽  
Structure Treatment ◽  
Heat Preservation

In order to analyze the effect of heat preservation, the heat preservation technology of detail structure, such as decorative lines of external walls, edge beam and edge column, windows, balcony and laying position of air conditioner, have been well treated under the system of thin plastered external wall based on EPS. Moreover, the technical-economy benefits of detail structure treatments have been analyzed by comparing with those without detail structure treatment. The results show that better heat preservation and economy benefits would be created by detail structure treatment, which could provide good reference for similar construction process.

FEATURES OF THE FORMATION AND DISPLAY OF TEMPORARY FEATURES IN THE IMPRESSIONS OF SEALS AND STAMPS CLICHÉS

2020 ◽  
Vol 21 (1) ◽  
pp. 318-329
Author(s):  
N. Zubova ◽  
H. Loshmanova ◽  
V. Somov
Keyword(s):  
New Technologies ◽  
Forensic Identification ◽  
Time Period ◽  
Temporal Features ◽  
Technology Changes ◽  
Characteristic Features ◽  
Materials Used ◽  
Seal Impressions ◽  
Legal Grounds ◽  
Made In

Seals and stamps, as well as their impressions, have been the objects of forensic identification for many decades, and although there are legal grounds for refusing to use seals by economic entities at present, documents are still certified with seal impressions. Recently, a great number of documents have been received for examination to address the issues as to the time period for document production. The forensic task on establishing the time period for document production is relevant. Only in the 80-s of the last century research regarding the possibilities of determining the time period for document production by impressions made by seals (stamps) clichés, produced with the help of vulcanizing rubber using movable types or typewriter composition was initiated. Over the past forty years, cliché manufacturing processes and the materials used in this process have significantly changed. At present, clichés produced with the use of new technologies are widespread, namely: laser engraving of rubber made by using photopolymer technology or flash technology. Changes in the technology of making clichés, production of new materials have led to the emergence of features that are formed in the cliché while its using. These features are displayed in the impressions of seals and stamps clichés. The article outlines the characteristic features of seals (stamps )clichés, considers the conditions for the occurrence of features in the process of their use, shows the evolution of their change, outlines the time periods for the existence of features, defines the criteria for attributing features to identically significant temporal features of the cliché. The mentioned temporal features appearing in the cliché of seals and stamps in general (taking into account handles) and in impressions over a certain period of time, allows to determine the time period of applying the impression on a document. In this case, free samples of impressions that have been made over the time period of examination and meet certain requirements should be provided for comparative analysis. For the categorical conclusion that the impression of a seal (stamp) was made in a specific period of time, it is needed to establish a set of persistent individual features that appeared in the studied impression and its copy over a certain period of time.

scholarly journals Research on Reliability of Straight Thread Connection of Reinforcement Cage of Bridge Foundation

2021 ◽  
Vol 248 ◽  
pp. 03064
Author(s):  
Jinhui Li ◽  
Xiaodong Shang ◽  
Minmin Yuan
Keyword(s):  
New Technologies ◽  
Practical Significance ◽  
Construction Technology ◽  
Bridge Construction ◽  
Thread Connection ◽  
Development Status ◽  
Steel Bar ◽  
Foreign Countries ◽  
Application Requirements ◽  
Bridge Foundation

With the continuous improvement of bridge construction technology in our country, although the service life of the bridge has been greatly extended, the mechanical connection technology of steel bar in the technology is still in the stage of steel bar straight thread connection, which is nearly 30 years behind that of foreign countries. According to the development status and application requirements of bridge construction in China, it is of great practical significance to explore new technologies and methods to solve the problem of insufficient strength of straight thread connection of reinforcement. In this paper, the reliability of the straight thread reinforcement connection in the bridge foundation reinforcement cage connection technology is studied as the main breakthrough point, and the main problems encountered in the application of the straight thread reinforcement connection technology in the bridge reinforcement cage connection are analyzed.

scholarly journals A Study of On-the-Go Reference Service Using Mobile Technology in Library

2021 ◽  
Author(s):  
Subhajit Panda
Keyword(s):  
Mobile Technology ◽  
New Technologies ◽  
User Needs ◽  
Technological Solution ◽  
Community Needs ◽  
Technology Generation ◽  
Reference Service ◽  
The Government ◽  
Real Time Information ◽  
Time Information

Libraries all over the world are continually reinventing themselves to meet changing community needs and the increasing opportunities and associated challenges that modern and evolving technologies bring. In response to the current pandemic and to follow the government guidelines about the remote learning programme libraries & librarians face a huge need for real-time information from the faculty, staff member, students and researcher. On another side, financial crisis & cutting budget, unavailability of adequate staff, user awareness etc are the main issues faces by libraries while try to adopt new technologies for accepting the challenges & issues created by this pandemic. On this point, mobile technology, as an economical & affordable technological solution that help libraries to keep abreast of the dynamically changing needs of their clientele and identify the way of delivering user-centred services by surveying the user needs. The current study examines the exponential growth in the mobile communication system, both in terms of technology (generation) & user count, after considering the needs of the user community. In addition, the study sets out the basic steps for introducing a mobile reference service in a library, as well as its future uses and benefits.

Research on the Construction Technology of High Brick Chimney

2011 ◽  
Vol 255-260 ◽  
pp. 65-69
Author(s):  
Hua Feng Deng ◽  
Min Zhu ◽  
Jing Guo ◽  
Tao Lu
Keyword(s):  
Detailed Calculation ◽  
Construction Technology ◽  
Structural Members ◽  
Construction Process ◽  
Horizontal Cross Section ◽  
Transport Equipment ◽  
Work Surface ◽  
The Stability ◽  
Calculation Analysis ◽  
Technical Measures

Chimney is the building which is high but the horizontal cross section is small, so the high altitude work surface is small and difficult to construct, in which the stability of the scaffold and the safety of vertical transport equipment are especially important. For the serious problems arising in the prophase construction of the 50m chimney, double rows steel pipe scaffold was designed outside the chimney, and the vertical transportation uses the external grillage hoisting frame. Reformed the internal existing scaffold into pedestrian passage to separate people and material, and a detailed calculation analysis of the structural members such as scaffold, grillage hoisting frame and other structures was carried out. Large deformation, destabilization and other safety problems of the scaffold, grillage hoisting frame and other structures were not arising during the anaphase construction process, which indicates that the construction technical measures and calculation and analysis results are with important guiding significance to guarantee the smooth of the construction, and also can be referenced by other similar projects.

Analysis of Crack Reason on Block No.0 of Continuous Rigid-Frame Bridge

2011 ◽  
Vol 71-78 ◽  
pp. 1392-1397 ◽  
Author(s):  
Wen Xiong Huang ◽  
Li Ying Tan ◽  
Kang Jing Zhou
Keyword(s):  
Temperature Difference ◽  
Construction Technology ◽  
Actual Situation ◽  
Construction Process ◽  
The Real ◽  
Continuous Rigid Frame Bridge ◽  
Rigid Frame ◽  
Technology Process ◽  
Rigid Frame Bridge ◽  
Distribution Of Stress

Cracks on the Joint Part between Pier and Girder, namely Block NO.0 in the construction process, has become one of the major diseases of continuous rigid-frame bridges. Based on the real construction technology, process and environment of Yuquanxi Bridge, the uneven distribution of stress caused by various factors is precisely analyzed by ANSYS. The shrinkage difference of concrete, the excessive hydration heat, and the sunshine temperature difference is accurately simulated respectively. By comparing the numerical results with actual cracks condition, the results prove that the theoretical analyse is accord with the actual situation, and the real reason of cracks on Block No.0 of Yuquanxi Bridge is uncovered. This study is of great practical value in preventing cracks and improving bridge construction technology.

Multi Well Analysis Data Processing for Event Analysis and Mitigation

2021 ◽  
Author(s):  
Vallet Laurent ◽  
Gutarov Pavel ◽  
Chevallier Bertrand ◽  
Converset Julien ◽  
Paterson Graeme ◽  
...  
Keyword(s):  
Machine Learning ◽  
Data Analysis ◽  
New Technologies ◽  
Early Stage ◽  
Mitigation Measures ◽  
Construction Process ◽  
Field Development ◽  
Drilling Data ◽  
Lost Time ◽  
Productive Time

Abstract In the current economic environment, delivering wells on time and on budget is paramount. Well construction is a significant cost of any field development and it is more important than ever to minimize these costs and to avoid unnecessary lost time and non-productive time. Invisible lost time and non-productive time can represent as much as 40% of the cost of well construction and can lead to more severe issues such as delaying first oil, losing the well or environmental impact. There has been much work developing systems to optimize well construction, but the industry still fails to routinely detect and avoid problematic events such as stuck pipe, kicks, losses and washouts. Standardizing drilling practice can help also to improve the efficiency, this practice has shown a 30% cost reduction through repetitive and systematic practices, automation becomes the key process to realize it and Machine Learning introduced by new technologies is the key to achieve it. Drilling data analysis is key to understanding reasons for bad performances and detecting at an early stage potential downhole events. It can be done efficiently to provide to the user tools to look at the well construction process in its whole instead of looking at the last few hours as it is done at the rig site. In order to analyze the drilling data, it is necessary to have access to reliable data in Real-Time to compare with a data model considering the context (BHA, fluids, well geometry). Well planning, including multi-well offset analysis of risks, drilling processes and geology enables a user to look at the full well construction process and define levels of automation. This paper applies machine learning to a post multi-well analysis of a deepwater field development known for its drilling challenges. Minimizing the human input through automation allowed us to compare offset wells and to define the root cause for non-productive time. In our case study an increase of the pressure while drilling should have led to immediate mitigation measures to avoid a wiper trip. This paper presents techniques used to systematize surface data analysis and a workflow to identify at an early stage a near pack off which was spotted in an automatic way. The application of this process during operations could have achieved a 10%-time reduction of the section 12 ¼’’.

New Electro-Optic and Display Technology for Visually Disabled People

2013 ◽  
pp. 687-718
Author(s):  
Ricardo Vergaz Benito ◽  
César Vega-Colado ◽  
María Begoña Coco ◽  
Rubén Cuadrado ◽  
Juan Carlos Torres-Zafra ◽  
...  
Keyword(s):  
Visual Impairment ◽  
New Technologies ◽  
Age Related Macular Degeneration ◽  
Disabled People ◽  
Age Related ◽  
Technical Aids ◽  
The World ◽  
World Information ◽  
Materials Used ◽  
Visually Disabled

The aim of the chapter is to review the most recent advances in electro-optical technologies applied to visually disabled people. The World Health Organization (WHO) estimates that the number of people in the world with some kind of visual impairment is 285 million, with 246 million of these persons in a partially sighted or Low Vision (LV) condition. The top three causes of visual impairment are uncorrected refractive errors, cataracts and glaucoma, followed by age-related macular degeneration. On the other hand, Head Mounted Displays or electro-optical materials used in liquid crystal or electrochromic devices can be used in technical aids for LV. In this chapter, the authors review how disabled people receive real world information using these new technologies, how the recently developed electro-optical technical aids can improve visual perception, and how these LV aids do work, from a technological point of view.

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