Stefan Bryła – Polish Creator of the First Welded Road Bridges

2020 ◽  
Author(s):  
J. Biliszczuk ◽  
J. Hołowaty ◽  
J. Rabiega
Keyword(s):  
Truss Structure ◽  
75Th Anniversary ◽  
Paper Briefly ◽  
Central Poland ◽  
Structural Work ◽  
Welded Structure ◽  
Technological Universities ◽  
Truss Bridge ◽  
Plate Girder

<p>The first two welded road bridges in Poland were designed by Stefan Bryła, Professor at the technological universities in Lwów and later in Warsaw. The bridges became operational in 1929 and 1931, respectively. The first bridge is of a truss structure and is the first welded structure of this type in Europe, and indeed the world’s first road welded truss bridge. It became a listed monument in 1968. It was in service up to 1977, when it was relocated due to insufficient horizontal clearance. The second bridge is of a plate girder structure and it is still operational. The two welded road bridges are located over the Słudwia river near Łowicz, central Poland. In 2019, ninety years have passed since the first welded bridge in Poland became operational, while December 2018 saw the 75th anniversary of Professor Stefan Bryła’s tragic death. To mark these occasions, this paper briefly presents the Professor’s design and structural work, and discusses the stories of the first two welded bridges in Poland.</p>

scholarly journals ANALISIS APLIKASI STRUKTUR TRUSS BERPENAMPANG MELINTANG SEGITIGA UNTUK JEMBATAN JALAN RAYA

2019 ◽  
Vol 1 (2) ◽  
pp. 117-128
Author(s):  
Zainuddin Zainuddin ◽  
T. Budi Aulia ◽  
Cut Ranian
Keyword(s):  
Space Dimension ◽  
Truss Structure ◽  
Bridge Structure ◽  
Microsoft Excel ◽  
Type Method ◽  
Optimum Weight ◽  
Bridge Type ◽  
Section Type ◽  
Truss Bridge ◽  
Depth Condition

Truss structure which is often used for primary girder  of bridge of highway is a Warren or Pratt  type, what is its use combined with two horizontal truss attached below and above functioning as truss of wind bracing. Though have space dimension, but its structure is not pure of truss space, practically its analysis is done to each truss, vertical and horizontal which is considered as plane truss.  Truss structure with a trianggular  cross section type represent other alternative from structure truss which can is also used as a highway bridge structure, and this type truss represent purification truss space. Beside that, structurally entire element truss together have the contribution to arrest forced from all direction, and cause this type truss is more stable in arrest torsion and shear compared to a other structure truss bridge type. Method used to analyse structure of truss that is stiffness matrix method by means of  assist calculation of Microsoft Excel 2007. Result to be reached from this analysis is to find relation of between span length, depth of truss and to the number of panel, to weight of structure and translation of a joint; utilize to get optimum weight and translation of joint. Pursuant to result analyse to three group of sample truss model, each group consisted of three sample, in each depth condition of certain truss, there's only one optimum weight value at one particular truss, and angle of inclination of diagonal and also the span-depth ratio and depth of  economic truss still stay in gyration of economic values is such as those which applied for plane truss

A Survey on Internet of Things : Applications and Layered Wise Security Issues

2019 ◽  
pp. 171-180
Author(s):  
Uppuluri Sirisha ◽  
G. Lakshme Eswari
Keyword(s):  
Quality Of Life ◽  
Internet Of Things ◽  
Security And Privacy ◽  
Global Network ◽  
Business Growth ◽  
Paper Briefly ◽  
Smart Meters ◽  
Security Issues ◽  
Data Points

This paper briefly introduces Internet of Things(IOT) as a intellectual connectivity among the physical objects or devices which are gaining massive increase in the fields like efficiency, quality of life and business growth. IOT is a global network which is interconnecting around 46 million smart meters in U.S. alone with 1.1 billion data points per day[1]. The total installation base of IOT connecting devices would increase to 75.44 billion globally by 2025 with a increase in growth in business, productivity, government efficiency, lifestyle, etc., This paper familiarizes the serious concern such as effective security and privacy to ensure exact and accurate confidentiality, integrity, authentication access control among the devices.

SOCIAL MEDIA FOR BEGINNERS

2018 ◽  
Vol 8 (3) ◽  
pp. 24
Author(s):  
Matthew N. O. Sadiku ◽  
Mahamadou Tembely ◽  
Sarhan M. Musa
Keyword(s):  
Social Media ◽  
Social Networking ◽  
Modern Society ◽  
Paper Briefly ◽  
Online Activity

Social media (or social networking) is a universal phenomenon.  It is the most popular online activity worldwide. It empowers people to share their opinions with others online.It has opened new ways of communication in the hyper-connected world. It has become an integral part of modern society as they provide means of interacting and socializing. This paper briefly introduces beginners to social media.

Machine Learning in Agriculture

2018 ◽  
Vol 8 (6) ◽  
pp. 26 ◽  
Author(s):  
Matthew N. O. Sadiku ◽  
Chandra M. M Kotteti ◽  
Sarhan M. Musa
Keyword(s):  
Climate Change ◽  
Artificial Intelligence ◽  
Machine Learning ◽  
Disease Diagnosis ◽  
Automated Detection ◽  
Disease Prediction ◽  
Paper Briefly ◽  
Agriculture Sector ◽  
Modern Agriculture ◽  
Crop Disease

Machine learning is an emerging field of artificial intelligence which can be applied to the agriculture sector. It refers to the automated detection of meaningful patterns in a given data.  Modern agriculture seeks ways to conserve water, use nutrients and energy more efficiently, and adapt to climate change.  Machine learning in agriculture allows for more accurate disease diagnosis and crop disease prediction. This paper briefly introduces what machine learning can do in the agriculture sector.

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