Lean Response for Emergency Dry-Docking

2014 ◽  
Author(s):  
Ahmed Samir Ghowel
Keyword(s):  
Project Manager ◽  
Suez Canal ◽  
International Competition ◽  
Bulk Carrier ◽  
Severe Damage ◽  
Bilge Keel ◽  
Ship Repair ◽  
Forward Area

As part of his study the author concluded a case study to show that lean manufacture should be implemented specifically in the case of emergency dry-docking which leads to an international competition in ship repair. This case study discusses an accident that happened to a bulk carrier while crossing the Suez Canal, where she was grounded from the forward area causing severe damage concentrated in the Fore compartment and separate localized other damage in way of the bilge keel. A request was sent from the owner to the surrounding shipyards to see the space availability for emergency dry-docking and the best approach for handling such case. For this case the author as project manager in the respective shipyard that had been selected, is illustrating what is done and what should be done as response for similar emergency Dry-docking

ALTERNATIVE ASSESSMENT OF WEATHER CRITERION FOR SHIPS WITH LARGE BREADTH AND DRAUGHT RATIOS BY A MODEL EXPERIMENT: A CASE STUDY ON AN INDONESIAN RO-RO FERRY

2021 ◽  
Vol 162 (A1) ◽  
Author(s):  
D Paroka ◽  
S Asri ◽  
Rosmani ◽  
Hamzah
Keyword(s):  
Alternative Assessment ◽  
Roll Angle ◽  
Slope Coefficient ◽  
Decay Test ◽  
Wave Slope ◽  
Effective Wave ◽  
Bilge Keel ◽  
Dead Ship Condition ◽  
Weather Criterion

The weather criterion is one of stability criteria to verify ability of a ships to withstand the combined effects of severe wind and rolling criteria in dead ship condition. An overestimated roll angle is obtained when the weather criterion is applied to ships with breadth and draught ratios larger than 3.50 and ratios between vertical centre of gravity and draught larger than 1.50. This paper discusses the assessment of weather criterion for an Indonesian ro-ro ferry by model experiments. The drift test is performed in four wave steepnesses with wave frequencies near the roll natural frequency. The maximum roll amplitude is used to calculate the effective wave slope coefficient correponding to the wave steepness, with Bertin’s coefficient obtained by the roll decay test. The damping factors correspond to the breadth and draught ratio as well as the bilge keel contribution are determined using the formula of weather criterion with the roll angle obtained by the Japanese formula with a correction factor of 0.70 due to the irregularity of waves. The obtained effective wave slope coefficient and the damping factors due to breadth and draught ratio and the bilge keel are smaller than those used in the weather criterion.

The Project Manager as the Driver of Organizational Knowledge Creation

2020 ◽  
pp. 313-333
Author(s):  
Ted Bibbes ◽  
Minna Rollins ◽  
Wesley J. Johnston
Keyword(s):  
Single Case ◽  
Project Manager ◽  
Project Team ◽  
Single Case Study ◽  
Study Approach ◽  
Seci Model ◽  
Organizational Knowledge Creation ◽  
Team Environment

The areas Project Management and Knowledge Management include studies on the project and project team levels, but a specific focus on the role of the Project Manager in managing knowledge within the team has received less focus. The authors show how knowledge is created within the project team environment, and the specific role of the Project Manager as an individual uniquely situated to drive the creation of knowledge in the environment by facilitating, directing, and controlling team activities through the four SECI model phases. Using a single case study approach, this research shows how the PM acts as a “mixing valve” in the flow of knowledge in a dynamic, multi-directional, process within the project team environment.

Case Study of a Gas Turbine Chronic Failure at Saudi Arabia

2019 ◽  
Author(s):  
Abdullah N. AlKhudhayr ◽  
Abdulrahman M. AlAdel
Keyword(s):  
Gas Turbine ◽  
Gas Turbines ◽  
Oil And Gas ◽  
Electrical Power ◽  
Oil And Gas Industry ◽  
Machine Design ◽  
Severe Damage ◽  
Major Overhaul ◽  
Gas Industry

Abstract A gas turbine is a reliable type of rotating equipment, utilized in various applications. It is well known in power generation and aviation. In the oil and gas industry, gas turbines are utilized in locations with limited electrical power or a high power driven load requirement, such as offshore or a high-rated power 20MW compressor. Five gas turbines are used as mechanical drive equipment. After a few years of operation, the gas turbines were experiencing high operating temperatures in bearings, turbine compartments, high spread temperature, and the presence of smoke in the exhaust. During a major overhaul of the turbines, oil was found to have accumulated internally in the wrapper casing, along with damage to several internal combustion components. In one case, the exhaust casing experienced severe damage with deformation. This paper presents a case study of a gas turbine failure and its contributors. The paper explains the mitigated solution to overcome the challenges related to the gas turbine operation, maintenance, and machine design.

scholarly journals Detection of silent subsidence over extensive area by SBAS DInSAR: a case study of Southern Bali, Indonesia

2020 ◽  
Vol 153 ◽  
pp. 02003
Author(s):  
Putu Edi Yastika ◽  
Norikazu Shimizu ◽  
Ni Nyoman Pujianiki ◽  
I Gede Rai Maya Temaja ◽  
I Nyoman Gede Antara ◽  
...  
Keyword(s):  
Land Subsidence ◽  
Groundwater Extraction ◽  
Severe Damage ◽  
Human Needs ◽  
Points Of Interest ◽  
Linear Behavior ◽  
The World ◽  
Spatio Temporal ◽  
The City

Numerous cities around the world are facing the problem of land subsidence. In many cases, it is the excessive groundwater extraction to meet human needs that leads to this subsidence. Since land subsidence rates are very slow (a few centimeters per year), the subsidence usually remains unnoticed until it has progressed to the point of causing severe damage to buildings, houses, and/or other infrastructures. Therefore, it is very important to detect the presence of subsidence in advance. In this study, screening for the presence of land subsidence in the city of Denpasar, Bali, Indonesia is conducted. The Sentinel-1A/B SAR dataset, taken from October 2014 to June 2019, is processed using the SBAS DInSAR method. Subsidence is found in the districts of Denpasar Selatan, Denpasar Barat, and Kuta, which falls in the range of -100 mm to -200 mm in an area of about 93.03 ha. All the extracted points of interest show the subsidence having linear behavior. The spatio-temporal behavior of the subsidence in Denpasar is presented clearly. However, the mechanism and the deriving factors of the subsidence remain unclear. Therefore, further studies are needed.

scholarly journals Assessing Structural Damage after a Severe Wildfire: A Case Study

Buildings ◽  
2019 ◽  
Vol 9 (7) ◽  
pp. 171
Author(s):  
Angeliki Papalou ◽  
Dimitrios K. Baros
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Temperature Distribution ◽  
Structural Damage ◽  
Extreme Heat ◽  
The Finite Element Method ◽  
Residential Areas ◽  
Severe Damage ◽  
Construction Type

Wildfires have always been a threat to forests and areas of high combustible vegetation. When they are not kept under control, they can spread to residential areas, creating severe damage and destruction. This paper examines the effects of the extreme heat conditions that developed during a wildfire on buildings as a function of their construction type. One of the deadliest wildfires in Greece (July 2018) is considered as a case study, and the damage that occurred to buildings during this event is presented. The temperature of the various structural subsystems in extreme heat conditions was estimated using the finite element method. Parameters that influenced the corresponding temperature distribution were identified. Simple guidelines are given to prevent or reduce damage in buildings exposed to wildfires.

scholarly journals The Existence of Stilt Houses Post-Disaster

2021 ◽  
Vol 903 (1) ◽  
pp. 012009
Author(s):  
Andi Hildayanti ◽  
Wasilah
Keyword(s):  
Natural Disasters ◽  
Influence Factors ◽  
Building Structures ◽  
Force Load ◽  
Severe Damage ◽  
Sustainable Products ◽  
Foundation Type ◽  
House Building ◽  
Post Disaster

Abstract Stilt houses are one of the architectural identities of the archipelago that are still commonly found in Indonesia. Stilt houses have proven to be sustainable products because they still exist today after going through various natural disasters. This is inseparable from the stilts house building techniques, including the process of finding and determining the form and implementation of adat (philosophy). So, this research aims to show the existence of post-disaster stilt houses which include tsunami disasters in Aceh and Palu. This research is a case study that uses a comparativeanalysis method to show the influence factors of the existence of stilts houses after disaster in Aceh dan Palu. Based on the results of the study, it is known that the stilt houses in Aceh and Palu have stilt buildings that are sturdy and stable in accepting the force load when a disaster occurs. The key of building sturdiness lies on building structures such as connection systems, foundation type, material type, and the buildings proportion. These factors caused the stilts houses to not suffer severe damage, and in some cases did not show any damage to the buildings after being affected by natural disasters.

scholarly journals Introduction

2012 ◽  
Vol 55 (4) ◽  
Author(s):  
Stefano Gresta
Keyword(s):  
Northern Italy ◽  
Point Of View ◽  
Important Case ◽  
Seismic Sequence ◽  
Severe Damage

The Emilia seismic sequence that struck northern Italy on May-June 2012 had a relevant social, cultural, emotional and economical impact. There were 17 victims, and it caused severe damage in many localities, especially to the historical centers and factories. From the scientific point of view, the sequence represented an important case study and the whole geophysical community focused their attention on it. [...]<br />

scholarly journals Field Study of the Noise Exposure Inside Running Metro Unit

2021 ◽  
Vol 7 (3) ◽  
pp. 560-574
Author(s):  
Mohamed N. Younes ◽  
Ali Z. Heikal ◽  
Akram S. Kotb ◽  
Haytham N. Zohny
Keyword(s):  
Noise Exposure ◽  
Sound Level ◽  
Noise Levels ◽  
Severe Damage ◽  
Acoustic Environment ◽  
Factors Affecting ◽  
Greater Cairo ◽  
Train Speed ◽  
Level Meter

The noise levels inside metro units are considered a significant problem that makes passengers suffer from severe damage, especially for those who use the metro periodically. This research evaluates the acoustic environment inside the metro car and studies factors affecting the noise levels inside metro units and developing models for estimate noise in the metro unit while moving between stations. Greater Cairo Metro (GCM) Line 1 has been selected as a case study. A sound level meter was used to measure the equivalent sound level in dBA and evaluate the noise inside metro units. The results indicate that the noise levels are unacceptable compared with the international noise exposure standards. The highest measured noise level inside metro units is 91.2 dBA. These unacceptable noise levels led to more investigation of factors that may affect noise levels inside metro units. Other data have been collected, such as the speed of the train and the track alignment details. The results showed that the noise increases with the increase of the train speed until the speed reaches a specific value, then it decreases depending on the maintenance status and the train type. In addition, the noise levels through curved underground tracks are higher than the levels along straight surface tracks by 18 dB(A). Doi: 10.28991/cej-2021-03091674 Full Text: PDF

scholarly journals Digital age: A challenge for project managers in security organizations

2021 ◽  
Vol 63 (2) ◽  
pp. 89-106
Author(s):  
Vesna Buha ◽  
Miroslav Bjegović ◽  
Rada Lečić
Keyword(s):  
Human Resource Development ◽  
Data Science ◽  
New Technologies ◽  
Collaborative Leadership ◽  
Digital Age ◽  
Project Managers ◽  
Project Manager ◽  
It Practices ◽  
Security Organizations

The digital age has brought great challenges to organizations. New technologies, methodologies, and products require a competent project manager who is able to meet the requirements of the digital age. Thus, the aim of this paper is: an analysis of the relevant theoretical context, the necessary competencies of the project manager, consideration of his position and actions in the organizational framework, and especially in organizations dealing with security. Also, the paper deals with the analysis of the model DevSecOps that implements security within IT practices. The results of the presented research indicate the fact that the total number of jobs performed by the project manager shows global growth in quantitative and qualitative terms. Research on human resource development in the field of project management distinguishes innovators from traditionalists. Innovators, in the age of globalization, have given priority to security training, followed by market topics, data science, innovative ways of behaving, and collaborative leadership. A case study is presented, which considers the steps of building a new product in the field of IT with implemented activities that provide an adequate level of security.

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