Maritime Technology - Science topic

Dear friends, could you forward the materials of the MARTECH 2016 conference? With respect, Dmitry

Thank you for your comment Timothy. I was interested on the cost the industry is "paying" which does not means it is the total cost of the activity for all the society. That is because the study I was doing has a very specific focus. We also had a very limited budget that constrained the scope of the study. I must say that the shipping companies I approached were quite collaborative even when they provided some sensitive information. But, I did it through a college that has met them before. If you interested, you can see the final publication here in research gate:

What is it, SWASH? Small water-plane area (twin-hull) ships? Usually it is abbreviated as SWATH...If so, please select the needed sorces from my list of publications.

yes Mr.Slanker , I mean does the cavitaion occurs in ship stern? 

The main ship parameters affecting wave propagation are the length, beam, draft, displacement and shape of the hull.

There are some secondary parameters too, like the smoothness of the surface: e.g. if there are sharp corners or other slope discontinuities, that can cause waves to be produced.

The roughness of the surface can increase turbulence close to the ship and might act to damp out very high frequency waves, especially immediately behind the hull.

I think you would get some excellent insights into the problem by looking at how wave resistance of model hulls is estimated from towing tank measurements. There are a number of methods (e.g. transverse cuts, longitudinal cuts, and the XY-method of Lawrence Ward) that you could look at.

About 20 years ago, I released a (free) version of the program "Michlet" which was a thin-ship, linear code that allowed the user to input a wave field behind the ship. The program used (primarily) memetic algorithms to search for the hull that produced that wave field.

Although there were severe restrictions in that toy problem, it was able to get reasonable estimates of the location and the length, beam, draft and displacement of the hull, as well as some indication of the shape of the hull.

Of course, the problem is ill-posed, and can be made even worse by adding real-world effects such as, among many others, ambient waves and viscous damping effects, but it can give some insights into the way various parameters act, and interact, in producing the far-field wave pattern.

In my opinion, either 40f. containers or 20f. containers are structure in that way so that they can not easily be damaged while stowing or causing any other deficiencies in the  operation processes when loading, discharging or transshipped. Added to this regarding your consideration it can be note that YES it might be possible to make containers weight a little bit less, but this will for example save 1 container out of 20 in terms of weight.

Moreover, making such innovations like reducing the weight of the construction would not be a solution that will bring a development in the liner shipping industry, unless this is proved to be efficient whilst avoiding any deficiencies, since lots of losses will be created.

Instead. economies of scale can be illustrated through the reduction of fuel prices, taking into account its particulars.

It is solved. Thanks a lot. :) 

Dear Razavi

Please find the attached paper for the details. Hope this will help!

Thanks

cs

The Chinese Navigation Satellite System, called BeiDou, will be fully operational in 2020. At the moment, it consists of 14 operational satellites (5 GEO, 5 IGSO, 4 MEO) but it is designed to consist of 35 satellites at its full operational capability.

REZA:

GARY has provided you with his work -- and this may be all  you require.  However, you might also consider simply contacting the earlier authors -- by phone or e-mail and ask if they have any suggestions [Gary has given you what he had, so the other authors remain to "chase."}  This technically-termed  "informal literature search" approach is often surprisingly effective.  Personally, however,  I have found it usually more effective to first do a "formal literature search" that is aimed at articles that have cited the  either the earlier articles at hand, or those provided by Gary.    Looking at these in turn, you may then identify cites of their work and further continue until you have citations and even pre-prints of work in press.   This "follow-the-citations-forward" process is well-known to research librarians (aka, "Information Scientists")....                                                                                                              One way to start the process is to Google the word Scholar  and in the resulting scholar related articles find and open "Google Scholar."   When this is opened, then type in the authors names for any article you have at hand in the format: Cokins G, Nextauthor H (or whatever).   I did this entering Cokins G and added terms "and up front costs of building ships"   My second result [orders may be slightly different with each person] was that below which is Cited by 114 which you then click-on, and sort through for articles of interest to further click-on...  

ALVAH

[BOOK] Performance management: finding the missing pieces (to close the intelligence gap)

G Cokins - 2004 - books.google.com

... 85 Activity-Based Management Model Design and Principles: Key to Success 98 Operational

(Local) Activity-Based Management for Continuous ... Gary Cokins garyfarrns@aol.com (I welcome

your e-mail.) ... modeling the data into information, and Web-reporting it to users. ...

Cited by 114 Related articles All 3 versions Cite Save More

Try to contact Laem Chabang port. I hope they will help you a lot of about Thai maritime..http://www.lcit.com/

Puttipong

PhD candidate (Operation management & Logistic supply chain)

Brunel Business School

Thanks Mr. Tavakoli, nice to have a good feedback.

                        Adrian Biran

Yes, the broad ways that something could be ice capable was the problem when I looked at the database.  Ice capable fixed structures in the Arctic would be a good category, but that, too, is a giant set of potential technologies.  I'm working on a little paper where I've taken 5 'factors' that two energy experts used in a 2009 article to assess how likely it is the Arctic will get exploited as environmental change moves along. I'm looking at whether any of the factors are further along now than then. I thought the article's factors were general enough to cover lots in the Arctic and they were not specific to energy production.  New technologies might also prove useful for adapting things for those who live there all the time.  Stands to reason that technological adaptation to change would grow fast there.  But it is hard to show that. Any suggestion are welcome.  I have a former student who works North Slope, he's a field engineer.  He's trying to help me think about it, too.  But, I see you have a lot on this.  I'm not an engineer.  Any suggestions would be welcome.

In the last decade the Norwegians have experienced and realized some tugs

and offshore supply vessels for the oil platforms in the North Sea with the so-called

reverse prow (x-bow). This type of bow, as well as increased stability and speed of the ship in adverse sea conditions, enables fuel savings of between 4 and 7%. See also:

O’Rourke R., 2006. Navy Ship Propulsion Technologies: Options for Reducing Oil Use - Background for Congress. Congressional Research Service. Report for Congress. Order Code RL33360.