Risk Analysis Commons^™

Practical Approach For Removal Of Natural Organic Matter And Defluoridation Of Maji Ya Chai River Water: Use Of Acid Pre-Treated Bone Char And Coagulants, Godfrey Mbabaye

Tanzania Journal of Engineering and Technology (TJET)

The removal of natural organic matter (NOM) and fluoride from Maji ya Chai River water (MCRW) using bone char (BC) and coagulants was investigated. Fine BC particles ranging from 0.045 to 0.2 mm were used in a 1 litre half-filled container, stirred at 300 rpm for 60 min followed by addition of a commercial coagulant and allowed to settle for 24 hours to remove NOM. MCRW practicable and affordable defluoridation method for removal of NOM through defluoridation with BC pre-treated with 0.3 N HCl followed by coagulation with Poly-aluminium chloride (PACl) is proposed. Reduction of fluoride from 21 mg/L to …

Reviewing The Potential And Constraints Of Modified Technology Options For Faecal Sludge Management In Dar Es Salaam, Tanzania, Amour Seleman

Tanzania Journal of Engineering and Technology (TJET)

Cities in the developing world face the challenge of safe management of faecal sludge because of rapid population growth that overwhelms the sanitation infrastructure and services. In developing countries, only 50% of faecal sludge (FS) generated is safely managed the remaining portion is haphazardly disposed of in the environment risking public health and environment. In response to the urgent need for safely managed sanitation services, technological options for containment, desludging and transportation of FS are being modified. This paper reviewed current desludging practices and the potential of modified technological options for addressing FSM at containment, desludging, and transportation in Dar …

Impact Of Organizational Culture And Perceived Process Safety In The Uae Oil And Gas Industry, Mohamed Ali Al Mazrouei Mr., Khalizani Khalid Dr., Ross Davidson Dr., Salam Abdallah Dr.

The Qualitative Report

In the last few decades, there had been a lot of accidents in the oil and gas industry throughout the world. This article reports a qualitative study of 30 employees employed in the United Arab Emirates (UAE) oil and gas industry. Health, Safety, and Environment (HSE) culture is a concept which was studied in many researches. However, this research is set to examine how certain behaviors affect the safety performance in UAE’s oil and gas industry. Four core themes that were drawn from the interviewee discussions of how safety culture, leadership safety behaviors, supervisory safety behaviors, and employee training on …

The Free Education Project: Higher Education Funding, E2 Implementation, And Crowdsourcing Crypto Development, Louis Carter, John R. Ziegler, Ovidui Purice, Edward Lehner Ph.D.

Publications and Research

This short paper, written in three different sections, explores how a cryptocurrency’s issuance and network effects could fund higher education. Synthesizing research from the Bronx Community College Cryptocurrency Research Lab, Bernard Lietaer’s notion of creating money for the needs of society, lessons learned by Galia Benartzi and the Hearts Project, and an exploration of how communities coalesce around open-source cryptocurrency projects, the authors provide an overview of the problem of funding higher education, the ways in which money that is needed could be created, and the key components to building a highly effective developer community. These three distinct yet vitally …

Use Of Neural Networks To Identify Safety Prevention Priorities In Agro-Manufacturing Operations Within Commercial Grain Elevators, Fatemeh Davoudi Kakhki, Steven Freeman, Gretchen Mosher

Faculty Research, Scholarly, and Creative Activity

The grain handling industry plays a significant role in U.S. agriculture by storing, distributing, and processing a variety of agricultural commodities. Commercial grain elevators are hazardous agro-manufacturing work environments where workers are prone to severe injuries, due to the nature of the activities and workplace. Safety incidents in agro-manufacturing operations generally arise from a combination of factors, rather than a single cause, therefore, research on occupational incidents must look deeper into identifying the underlying causes, through the application of advanced analyses methods. In occupational safety, it is possible to estimate and predict probability of safety risks through developing artificial neural …

Exploratory Study On Applying Systems Thinking To Examine Safety In Navy / Coast Guard / Commercial Shipping Operations, Seth Anthony Dzakpasu

World Maritime University Dissertations

No abstract provided.

Implementing A Balance Between Productivity, Safety And Quality : A Comparative Analysis Of Operational Risk Management In The Ports Of Tema And Aarhus, Emmanuel Insaidoo

World Maritime University Dissertations

No abstract provided.

Exploration Of Implementation And Reporting Of Hours Of Work And Hours Of Rest Onboard Ships, Bikram Singh Bhatia

World Maritime University Dissertations

No abstract provided.

The Importance Of Integrating “Biosecurity Policies” In The Peruvian Maritime Sector, Christian Velarde Morillas

World Maritime University Dissertations

No abstract provided.

Learning From Incidents To Reduce The Risk Of Drowning In Swimming Pools: Implementation Of Experience-Based Feedback Regarding Near-Misses In Four Public Facilities In France, Élie Vignac, Pascal Lebihain, Bastien Soulé

International Journal of Aquatic Research and Education

The prevention of sports accidents must rely on a detailed knowledge of accident circumstances and risk factors. Today, very few studies have investigated in depth non-fatal drowning incidents that have occurred in public swimming pools (PSP). Learning from incidents seems likely to advance the knowledge of accident scenarios. This research study aimed to capture minor incidents that might identify safety lessons and preventive measures. Incidents of minor and major aquatic events were collected from four PSPs that had hosted 700,000 bathers per year. About 800 incidents and 300 aquatic rescues performed by lifeguards were recorded within a time frame of …

Research On Ship Pilotage Risk Management And Decision Making In Guangzhou Port, Gengshuo Yan

Maritime Safety & Environment Management Dissertations (Dalian)

No abstract provided.

Safety Assessment Based On Fahp For Marine Traffic Of Important Channel Waters, Qiang Liu

Maritime Safety & Environment Management Dissertations (Dalian)

No abstract provided.

Measuring Risks Of Interdependencies In Enterprise Systems: An Application To Ghana’S Salt Enterprise, Yaw Mensah

Engineering Management & Systems Engineering Theses & Dissertations

This dissertation describes the use of Functional Dependency Network Analysis (FDNA) for modeling risks resulting from dependencies among elements of enterprise systems with application to salt processing enterprise in Ghana. FDNA was developed to model dependencies among members of enterprise systems by highlighting two dimensions of dependency: strength and criticality. Nonetheless, the concepts and analytics for these two dimensions of dependencies needed further development and generalization in the context of project management and systems development in developing countries.

Managing risks within the interdependency in enterprise systems through integration will help improve global economic growth. Coherent theory for enterprise integration must …

A Novel Privacy Disclosure Risk Measure And Optimizing Privacy Preserving Data Publishing Techniques, Marmar Orooji

LSU Doctoral Dissertations

A tremendous amount of individual-level data is generated each day, with a wide variety of uses. This data often contains sensitive information about individuals, which can be disclosed by “adversaries”. Even when direct identifiers such as social security numbers are masked, an adversary may be able to recognize an individual's identity for a data record by looking at the values of quasi-identifiers (QID), known as identity disclosure, or can uncover sensitive attributes (SA) about an individual through attribute disclosure. In data privacy field, multiple disclosure risk measures have been proposed. These share two drawbacks: they do not consider identity and …

Assessment Of Project Risks In Fast-Track Construction Projects, Claudia Garrido Martins

Civil Engineering ETDs

Fast-tracking has been extensively used to respond to demands for reduced construction project delivery times. Unique risks arising from the overlapping of activities can threaten the project. A framework is proposed to assess project risks in fast-track construction projects to better understand the intersection of fast-track, risks, and construction. The research used a commercial construction renovation project as a case study, semi-structured interviews, simulation and optimization methods to identify risks of overlapping activities, classify the risks, evaluate the impact of risks and risk mitigation actions, and optimal combinations to minimize the risk impact and mitigation costs. This study resulted in …

A Study To Determine How To Measure The Laser Safety Climate At Academic Institutions, John Settlemyer

OTS Master's Level Projects & Papers

Statement of Problem

The purpose of this study was to determine if the laser safety climate can be measured at academic institutions and what factors would provide valid measures of the laser safety climate at academic institutions. Specifically, the study attempted to answer the following questions:

Research Questions

RQ1. Can laser safety climate be measured at academic institutions using a climate survey instrument?

RQ2. What factors should be measured by a laser safety climate instrument?

RQ3. What measures would provide actionable data for prescriptive intervention by laser safety professionals at academic institutions? (p. 4)

Linking Quality Management Practices With Performance Of Manufacturing Industries In Tanzania, Mussa Iddi Mgwatu Dr.

Tanzania Journal of Engineering and Technology (TJET)

Local products of manufacturing industries in Tanzania are subjected to intense competition in the markets. Product quality is one of key factors that play a considerable role for manufacturing industries to win the competitive advantage. This paper attempts to analyse the extents of quality management practices (QMP) and manufacturing performance (MP) as well as to examine the linkage between practices and performance. Data was collected from seventy-eight (78) manufacturing industries in Dar es Salaam region using questionnaires comprising of both single-item and multi-item questions. Descriptive statistics was used to quantify the extent of quality management practices and manufacturing performance (MP) …

Development Of Improved Characteristic Equations For Lake Rukwa In Tanzania, Patrick Valimba Dr

Tanzania Journal of Engineering and Technology (TJET)

Often Lake Rukwa characteristics have been misreported in literature giving different volumes and surface areas at similar water surface elevations. This study aimed at establishing reliable lake characteristics elevation-area-storage equations for Lake Rukwa by utilising all available data and information to define the bathymetry and derive characteristic equations. A procedure was developed that combines historical lake extents, spot heights from topographical maps and surveyed lake bathymetry to define refined bathymetry to levels it has never reached. It combined spot heights around the lake and selected 13,934 surveyed points (from 107,938 available) within the lake confined by the 820 m land …

Potential Use Of High Rate Algae Ponds For Resource Recovery In The Water-Food-Energy Nexus For Tanzania: A Review, Mary Kayombo

Tanzania Journal of Engineering and Technology (TJET)

The use of High Rate Algal Ponds (HRAPs) for the treatment of wastewater and resource recovery has raised interest in recent years. Treatment of wastewater through this technology has proved to have high efficiency in reducing the level of pollution, nutrients, dissolved solids as well as pathogens. HRAPs are more efficient than conventional Wastewater Stabilization Ponds (WSPs) due to their design approach that provides room for high rate bio-chemical processes, which increase the mechanisms of nutrients and pathogens removal as well as the rate of micro-algae production for purposes of resource recovery. This paper reviews the upgrading potential of existing …

Experimental Study On The Effect Of Moisture On Bolt Embedment And Connection Loaded Parallel To Grain For Timber Structures, Henry Meleki Kiwelu

Tanzania Journal of Engineering and Technology (TJET)

Connections are critical parts of timber structures, transmitting static and dynamic forces between structural elements. The ultimate behaviour of a building depends strongly on the structural configuration and the capacity of its connections. The complete collapse of a building or other less extensive accidents that may occur usually start as a local failure inside or in the vicinity of a joint. The main aim of this study has been to investigate if the short-term capacity of steel-wood dowel joints loaded parallel to the grain is affected by variations in moisture content associated with post fabrication drying or wetting of the …