scholarly journals Analysis and Laboratory Testing of Technical Injury Prevention Measures for Portable Combustion Chainsaws

Forests ◽  
2020 ◽  
Vol 11 (3) ◽  
pp. 276 ◽  
Author(s):  
Andrzej Dąbrowski
Keyword(s):  
Working Conditions ◽  
Third Party ◽  
Prevention Measures ◽  
Specific Group ◽  
Market Surveillance ◽  
Wood Harvesting ◽  
Risk Of Injury ◽  
Notified Body ◽  
Technical Solutions ◽  
Selection Of

Portable chainsaws for cutting wood, like other handheld machines, are commonly used for mechanical work. Portable combustion chainsaws are still used in many countries, including Poland, as basic wood harvesting machines and in agriculture. The use of portable chainsaws, however, poses a high risk of injury, especially with the phenomenon of kickback. Important European documents (e.g., 2006/42/EC) qualify these machines as a specific group, and assessing them for compliance with the essential applicable requirements (before placing them on the market) can be done with the participation of a third party (notified body). In Poland, only employees with appropriate training are allowed to work with chainsaws for professional wood harvesting. This paper presents the results of an analysis of the hazards posed by portable combustion chainsaws. A practical assessment was conducted of the effectiveness of the most relevant technical solutions used to protect operators from injury. Reference is made to tests on chainsaws that were carried out as part of scientific research (described in previous publications) and as part of research commissioned by market surveillance authorities operating in Poland. The presented research results show that the risk of injury caused by the use of chainsaws is influenced not only by the design features of the machines but also by their proper use, including the selection of equipment appropriate to the working conditions (e.g., wood type and properties, use of chainsaws for professional or non-professional work).

Big Data in the Field of Civil Security Research

2016 ◽  
Vol 7 (1) ◽  
pp. 54-64 ◽  
Author(s):  
Julia Gonschorek ◽  
Anja Langer ◽  
Benjamin Bernhardt ◽  
Caroline Räbiger
Keyword(s):  
Big Data ◽  
Temporal Distribution ◽  
Tactical Planning ◽  
Fire Departments ◽  
Prevention Measures ◽  
Scientific Contribution ◽  
Security Research ◽  
Geovisual Analytics ◽  
The University ◽  
Selection Of

This article gives insight in a running dissertation at the University in Potsdam. Point of discussion is the spatial and temporal distribution of emergencies of German fire brigades that have not sufficiently been scientifically examined. The challenge is seen in Big Data: enormous amounts of data that exist now (or can be collected in the future) and whose variables are linked to one another. These analyses and visualizations can form a basis for strategic, operational and tactical planning, as well as prevention measures. The user-centered (geo-) visualization of fire brigade data accessible to the general public is a scientific contribution to the research topic 'geovisual analytics and geographical profiling'. It may supplement antiquated methods such as the so-called pinmaps as well as the areas of engagement that are freehand constructions in GIS. Considering police work, there are already numerous scientific projects, publications, and software solutions designed to meet the specific requirements of Crime Analysis and Crime Mapping. By adapting and extending these methods and techniques, civil security research can be tailored to the needs of fire departments. In this paper, a selection of appropriate visualization methods will be presented and discussed.

scholarly journals Evaluation and Selection of Nigerian Third-Party Logistics Service Providers Using Multi-Criteria Decision Models

2021 ◽  
Vol 12 (1) ◽  
pp. 135-146
Author(s):  
E.A. Ejem ◽  
C.M. Uka ◽  
D.N. Dike ◽  
C.C. Ikeogu ◽  
C.C. Igboanusi ◽  
...  
Keyword(s):  
Service Providers ◽  
Service Level ◽  
Decision Makers ◽  
Third Party ◽  
Decision Models ◽  
Third Party Logistics ◽  
Logistics Service ◽  
Logistics Service Providers ◽  
Selection Of

Abstract This paper is focused on solving the evaluation and selection of 3PL’s by applying multi-criteria decision-making methods. Nigerian Breweries, Nigerian Bottling Company (NBC), AG Leventis, Kobo logistics, and Flour Mills of Nigeria (FMN) were understudied. The main criteria on which evaluation is based were established: Cost, Service level, Financial Capability, Reputation and Long-term relationship. A combination of two quantitative models was adopted in the study. Relevant data were collected through an oral interview with managers and key decision-makers at the companies. SWARA was first applied to the collated data to determine the relative weights of the criteria. Afterwards, the TOPSIS was applied to the weights developed using SWARA and on the performance of the selected service providers. After the analysis, the best service provider was identified as supplier 2 while the worst was supplier 5.

scholarly journals Human Factor in Smart Industry: A Literature Review

2020 ◽  
Vol 12 (1) ◽  
pp. 87-111 ◽  
Author(s):  
Vander Luiz Silva ◽  
João Luiz Kovaleski ◽  
Regina Negri Pagani ◽  
Alana Corsi ◽  
Myller Augusto Santos Gomes
Keyword(s):  
Literature Review ◽  
Working Conditions ◽  
Industry 4.0 ◽  
Human Performance ◽  
Human Factor ◽  
Physical And Mental Health ◽  
Professional Career ◽  
Smart Industry ◽  
Constant Improvement ◽  
Selection Of

Purpose of the study: The objective of this study is to identify the benefits and challenges of smart industry concept to the human factor, based on the concept of Industry 4.0.Methodology/approach: A systematic literature review was elaborated, based on structured protocols for the selection of a bibliographic portfolio of articles. A bibliometric analysis of the data and content analysis was performed.Originality/relevance: The article discusses human work, focusing on theoretical and practical contributions of international literature. The focus scenario is smart industry, a concept in constant improvement, which currently has acquired influences from Industry 4.0.Main results: The discussions lead us to ponder on human factor in smart industries in the categories physical and mental health at work, human performance and professional career in general. The conclusions points to the need to ensure adequate working conditions in cognitive and psychic aspects, among others.Theoretical and methodological contributions: We present major literature articles, smart industry definitions, main technologies, and grouping benefits and challenges to the human factor.

Testing and Acceptance of Semi-Machined Turbine Rotor Forging Elements

2021 ◽  
Author(s):  
Steve Ingistov ◽  
Douglas Nagy
Keyword(s):  
Elevated Temperatures ◽  
Turbine Rotor ◽  
Third Party ◽  
Test Material ◽  
Acceptance Testing ◽  
Critical Elements ◽  
Reverse Engineer ◽  
Compressive Stresses ◽  
High Integrity ◽  
Selection Of

Abstract Turbine wheels are critical elements and the integrity of their forgings is extremely important. The procurement of wheel forgings utilized oversized outside diameters in order to provide ample amount of material from which test material was cut out. Test specimens were produced in accordance with relevant ASTM standards. Test specimens were divided into three groups; tension, impact and hardness / metallography. Tension and impact tests at sub-zero, room and elevated temperatures were conducted in presence of owner’s inspectors at an independent certified laboratory. Once all specimens passed the tests, the semi-machined forgings were released to the machining facility. Machined forgings were then sent for over-speed tests at sub-zero and elevated temperatures. Over-speed testing under sub-zero temperature was the ultimate test of the forgings. Over-speed testing of the forgings under elevated temperatures served to minimize residual tensile stresses at the bore of the wheel and convert them to beneficial compressive stresses. The above described tests of turbine Elements forging are critical when the owner selects third party producers to reverse engineer and manufacture these elements. This paper details the selection of the tests, the execution of the owner’s acceptance testing program, especially the over-speed tests, and how this helps to ensure the high integrity of critical rotating elements for a mid-size heavy industrial frame gas turbine.

A Decision Support System for Selecting Secure Web Services

2010 ◽  
pp. 556-564
Author(s):  
Khaled M. Khan
Keyword(s):  
Web Services ◽  
Web Service ◽  
Service Providers ◽  
Selection Process ◽  
Enterprise Systems ◽  
Third Party ◽  
Security Requirements ◽  
Enterprise Application ◽  
Systems Security ◽  
Selection Of

Web service is becoming an important area of business processing and research for enterprise systems. Various Web service providers currently offer diverse computing services ranging from entertainment, finance, and health care to real-time application. With the widespread proliferation of Web Services, not only delivering secure services has become a critical challenge for the service providers, but users face constant challenges in selecting the appropriate Web services for their enterprise application systems. Security has become an important issue for information systems (IS) managers for a secure integration of Web services with their enterprise systems. Security is one of the determining factors in selecting appropriate Web services. The need for run-time composition of enterprise systems with third-party Web services requires a careful selection process of Web services with security assurances consistent with the enterprise business goal. Selection of appropriate Web services with required security assurances is essentially a problem of choice among several alternative services available in the market. The IS managers have little control of the actual security behavior of the third-party Web services, however, they can control the selection of right services which could likely comply their security requirements. Selecting third-party Web services arbitrarily over the Internet is critical as well as risky.

Experiments in Environment Integration

1994 ◽  
Author(s):  
Alan W. Brown ◽  
David J. Carney ◽  
Edwin J. Morris ◽  
Dennis B. Smith ◽  
Paul F. Zarrella
Keyword(s):  
Production Quality ◽  
Current Level ◽  
Third Party ◽  
Tool Integration ◽  
Current State ◽  
Internal Structures ◽  
Framework Technology ◽  
Per Se ◽  
Development Approach ◽  
Selection Of

In assembling a CASE environment from a collection of commercial off-theshelf (COTS) tools, tool users must find ways to connect the tools such that they provide adequate support for their particular software development approach. This task takes place in the context of limited knowledge of the tools, limited access to the source or internal structures of the tools, limited resources with which to perform and maintain the tool connections, and evolving understanding of the needs of the tool users. This places severe restrictions on what can be attempted in terms of tool interconnection. Environment framework technologies (e.g., ECMA PCTE, ATIS, BMS, ToolTalk, or CORBA) claim to provide a set of common integration services that aid in the tool integration process. There have been numerous discussions about the value, maturity, and complexity of these framework technologies. Such discussions are characterized by three points: general agreement that framework technology per se is a valuable goal to pursue; moderate disagreement as to whether the current level of framework technology is a sufficient basis for production quality CASE environments; and considerable disagreement about which of the current technologies are the most likely to mature and succeed. Notable about these discussions, however, is that there has not been extensive use of the technologies in question. This stems from several sources: their expense, their unfamiliarity and complexity to current tool users, and a widespread concern about their immaturity. This lack of use is perhaps understandable, but it has had the additional effect that partisans of one or another technology have made assertions based on little factual information about the relative merits of the technology in question. To expand our own expertise in tool integration and framework technologies, and to answer the question, “What tool integrations are possible for third-party tool users given the current state of COTS tools and integration technology?” we performed a set of experiments involving the integration of a collection of common COTS tools with environment framework technologies in support of a typical development scenario. Our selection of these tools and technologies was based on common availability and application to the development scenario(s) of interest.

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