Tuesday, August 30, 2011

Search Social Bookmarks

“It is easy -- terribly easy -- to shake a man's faith in himself. To take advantage of that to break a man's spirit is devil's work.” -- George Bernard Shaw (Irish literary Critic, Playwright and Essayist. 1925 Nobel Prize for Literature, 1856-1950)
Take advantage of Delicious bookmarks (http://www.delicious.com/) to find hidden nuggets.  Delicious.com is a social bookmarking site.  People find bookmarks of interest to them and save them to their Delicious.com account.  Most people tag their bookmarks with keywords that make sense to them.

Consequently, you can search the site using keywords that are important to you … and turn up some interesting results.

Search Delicious.com, for example, using the following keywords …

fuel cell sofc
One result is …
///////

Solid Oxide Fuel Cell, Tubular SOFC, Emergency Power Generator - Acumentrics
Bookmarked by: Garry Golden
///////
Click the hyperlinked Solid Oxide Fuel Cell, Tubular SOFC, Emergency Power Generator - Acumentrics to find …
///////

Acumentrics (http://www.acumentrics.com/)Acumentrics solid oxide fuel cells deliver clean, efficient and quiet electrical power and heat in a reliable system designed for remote, military and commercial sites. These systems operate on conventional fuels like natural gas and propane for commercial applications and liquid logistics fuels for military applications.///////
Return to the original entry, and click the hyperlinked bookmarker’s name (Garry Golden) … the result is a list of Garry’s other bookmarks, as well as a link to his site … www.garrygolden.net … where you can find more information about the bookmarker.
Which raises another possibility … not only can you use Delicious.com to explore … you can save your own bookmarks, and promote yourself in the process.

While you’re at it, take a look at my desulfurization bookmarks … just go to http://www.delicious.com/ and search the keyword desulfurization.
Oh, and one other thing …remember to bookmark the Desulfurization Blog (http://www.desulf.blogspot.com/)

Wednesday, August 24, 2011

What’s It All About? Exploring Cited Articles

“Each has his past shut in him like the leaves of a book known to him by heart and his friends can only read the title -- Virginia Woolf (English Modernist Writer, 1882-1941)

Have you ever browsed through a list of cited articles and wished you knew the titles of said articles?  Today’s tip: Google® the citation.  The usual result will be the title and an abstract of the article, as well as a convenient way to purchase it.

Here is an example, taken from the list of references in the following thesis …

///////
Anode materials for sour natrual gas solid oxide fuel cells
Danilovic, Nemanja
A thesis submitted to the Faculty of Graduate Studies and Research in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Materials Engineering
Department:  Chemical and Materials Engineering, University of Alberta
Issue Date:  2-Feb-2010 
Abstract: 
Novel anode catalysts have been developed for sour natural gas solid oxide fuel cell (SOFC) applications. Sour natural gas comprises light hydrocarbons, and typically also contains H2S. An alternative fuel SOFC that operates directly on sour natural gas would reduce the overall cost of plant construction and operation for fuel cell power generation. The anode for such a fuel cell must have good catalytic and electrocatalytic activity for hydrocarbon conversion, sulfur-tolerance, resistance to coking, and good electronic and ionic conductivity. The catalytic activity and stability of ABO3 (A= La, Ce and/or Sr, B=Cr and one or more of Ti, V, Cr, Fe, Mn, or Co) perovskites as SOFC anode materials depends on both A and B, and are modified by substituents. The materials have been prepared by both solid state and wet-chemical methods. The physical and chemical characteristics of the materials have been fully characterized using electron microscopy, XRD, calorimetry, dilatometry, particle size and area, using XPS and TGA-DSC-MS. Electrochemical performance was determined using potentiodynamic and potentiostatic cell testing, electrochemical impedance analysis, and conductivity measurements. Neither Ce0.9Sr0.1VO3 nor Ce0.9Sr0.1Cr0.5V0.5O3 was an active anode for oxidation of H2 and CH4 fuels. However, active catalysts comprising Ce0.9Sr0.1V(O,S)3 and Ce0.9Sr0.1Cr0.5V0.5(O,S)3 were formed when small concentrations of H2S were present in the fuels. The oxysulfides formed in-situ were very active for conversion of H2S. The maximum performance improved from 50 mW cm−2 to 85 mW cm−2 in 0.5% H2S/CH4 at 850 oC with partial substitution of V by Cr in Ce0.9Sr0.1V(O,S)3 . Selective conversion of H2S offers potential for sweetening of sour gas without affecting the hydrocarbons. Perovskites La0.75Sr0.25Cr0.5X0.5O3−δ, (henceforth referred to as LSCX, X=Ti, Mn, Fe, Co) are active for conversion of H2, CH4 and 0.5% H2S/CH4. The order of activity in the different fuels depends on the substituent element: CH4, X=Fe>Mn>Ti; H2,X = Fe>Mn>Ti; and 0.5% H2S/CH4, X = Fe>Ti>Mn. The electrocatalytic activity for methane oxidation in a fuel cell correlates with ex-situ temperature programmed catalytic activity. A process is proposed to explain the difference in catalyst order and enhanced activities in H2S/CH4 as fuel compared to CH4 alone. The maximum power density of 250 mW cm−2 was attained using a fuel cell with a composite anode, LSCFe-GDC | YSZ(0.3 mm) | Pt, operated at 850 oC (GDC is Ce0.9Gd0.1O3, a good mixed conductor under reducing conditions).
Source: http://repository.library.ualberta.ca/dspace/handle/10048/1008
///////
Among the references in the thesis …
///////
T. Nakamura, G. Petzow, L. Gauckler, J. Mater. Res. Bul., 14 (1979) 649-659
Copy the cite, then paste it into the Google search box …
Google search string :
T. Nakamura, G. Petzow, L. Gauckler, J. Mater. Res. Bul., 14 (1979) 649-659

The Google search results include the following title and abstract …
///////
Materials Research Bulletin
Volume 14, Issue 5, May 1979, Pages 649-659

Stability of the perovskite phase LaBO3 (B = V, Cr, Mn, Fe, Co, Ni) in reducing atmosphere I. Experimental results
Tetsurō Nakamura , a, G. Petzowa and L.J. Gaucklera
aMax-Planck-Institut für Metallforschung, Institut für Werkstoffwissenschaften, Pulvermetallurgisches Laboratorium Heisenbergstrasse 5, D-7000 Stuttgart-80 Germany
Communicated by M. Nakahira. 
Abstract
The chemical stability of perovskites LaBO3 where B = V, Cr, Mn, Fe, Co, Ni was studied by thermogravimetry at 1000°C in gas mixtures of

 at 1 bar.
The stability limits of the perovskite phases expressed in terms of -log Po2(Po2 = critical oxygen partial pressure in bar) were for LaCrO3 and LaVO3(greater than 21.1), LaFeO3 (16.95), LaMnO3 (15.05), LaCoO3 (7.0) and for LaNiO3 (0.6). The changes in standard enthalpy ΔH° and entropy ΔS° of the following reactions were obtained.
 Present Address: Research Laboratory of Engineering Materials, Tokyo Institute of Technology, Tokyo 152, Japan
 Source: http://www.sciencedirect.com/science/article/pii/0025540879900485
///////
 
Do you like this post?  Bookmark the Desulfurization Blog (www.desulf.blogspot.com) for future tips.  Better yet, follow the blog.

Thursday, August 18, 2011

The Power of Patents

“If you can't beat them, arrange to have them beaten” -- George Carlin (American stand-up Comedian, Actor and Author. b.1937)
You can’t beat patent literature for keeping abreast of technology developments. 
Two easy sources for patent literature …
·         Google® Patents
·         FreePatentsOnline (www.freepatentsonline.com)
Search both sources to be sure you don’t miss anything … coverage of U.S. Patents differs somewhat between the two.
However, if you want to search for non-U.S. patents, the choice is clear … choose FreePatentsOnline.
Two reasons to make FreePatentsOnline your first choice …
1.       You can search any or all of U.S. Patents and Patent Applications, EP documents, Abstracts of Japan, WIPO, and some non-patent literature
2.       You can tailor your search string for more effective results
FreePatentsOnline offers an excellent tutorial (click “Help” to find it).  Below is their table of possible search strings, adapted for “desulfurization.”
///////
Desulfurization
Find all documents containing the word 'desulfurization' in any of the main text fields (title, abstract, or specification/description). 
ABST/desulfurization
Find all documents containing the word 'desulfurization' in only the abstract.
desulfurization AND (fuel cell)
Find all documents containing both the word 'desulfurization' and the phrase 'fuel cell' in any of the main text fields (title, abstract, or specification/description). The two words may be in different fields. 
ABST/desulfurization AND (fuel cell)
Find all documents containing the word 'desulfurization' in the abstract, and the phrase 'Fuel cell' in any of the main text fields (title, abstract, or specification/description). 
ABST/desulfurization AND APD/12/14/2000->12/31/2011
Find all documents containing the word 'desulfurization' in the abstract which have an application date between Dec 14, 2000 and Dec 31, 2011 
TTL/desulfurization NOT coal
Find all documents containing the word 'desulfurization' in the title, but do not include any documents which have the word 'coal' in any of the main text fields (title, abstract, or specification/description). 
(desulfurization OR thiophene) AND (fuel cell)
Find all documents that contain either the word 'desulfurization' or the word 'thiophene', and which also contain the phrase 'fuel cell.' Note that without the parenthesis this query would be interpreted in an entirely different manner. 
[with word stemming on] thiophene
Find all forms of the word 'thiophene'
"desulfurization cell"~5
Find all documents containing the word 'desulfurization' within 5 words of 'thiophene', in any of the main text fields (title, abstract, or body). The 5 may be replaced with any whole number. 
thiophene^5 OR desulfurization
Thiophene is 5 times more important to the relevancy of documents than desulfurization. Find all documents containing the word 'thiophene' or 'desulfurization' but, all other things being equal, rank the documents containing thiophene higher. The "5" may be replaced with any whole number. 
benzo*
Find all documents containing words starting with benzo
thiophene?
Find all documents containing words that have only one character after 'thiophene'
///////

Below are sample search results using each of the above search strings …
///////
Search String Example
One of the Document Titles Resulting from the Search
desulfurization
A method for desulfurizing molten pig-iron involving injecting a gas-evolving desulfurization agent which includes a calcium compound and a gas forming material comprising of a gas-producing...
ABST/desulfurization
A powdery desulfurizer composition for injection desulfurization of molten iron, said composition comprising quicklime, diamide lime and calcium carbide.
desulfurization AND (fuel cell)
A fuel processing system is operable to remove substantially all of the sulfur present in an undiluted hydrocarbon fuel stock supply used to power a fuel cell power plant in a mobile environment,...
ABST/desulfurization AND (fuel cell)
In a fuel cell power generation system for use with a fuel gas which is prepared by desulfurizing a raw fuel material such as naphtha, LPG, town gas, or the like and then, processing it by steam...
ABST/desulfurization AND APD/12/14/2000->12/31/2011
A zeolite adsorbent for desulfurization and a method of preparing the same. More particularly, a zeolite adsorbent for desulfurization in which the relative crystallinity of Y zeolite that is ion...
TTL/desulfurization NOT coal
(desulfurization OR thiophene) AND (fuel cell)
A fuel processing system is operable to remove substantially all of the sulfur present in an undiluted hydrocarbon fuel stock supply used to power a fuel cell power plant in a mobile environment,...
[with word stemming on] thiophene
The present invention relates to novel benzo(b)thiophene derivatives of the general formula: ##STR1## wherein Y represents a hydrogen or halogen atom; A represents a hydrogen atom or a phenyl group...
"desulfurization cell"~5
A desulfurization adsorbent for a fuel cell has a structure according to Formula 1 below, and a desulfurizing method uses the desulfurization adsorbent. The desulfurization adsorbent displays...
thiophene^5 OR desulfurization
Process for the preparation of a series of thiophene derivatives, from which 2-thiopheneacetic acid derivatives can easily be prepared, in high yields and selectivity by using substituted or...
benzo*
This invention relates to a stabilization composition, particularly adapted to prevent deterioration resulting from exposure to heat and light in polymeric materials, paints and dyes, consisting...
Thiophene?
Substituted thiophenes of the general formula: ##STR1## in which: R represents a hydrogen atom, a halogen atom or an aliphatic group containing from 1 to 4 carbon atoms, X represents a hydrogen...
/////// 
Do your colleagues know about the Desulfurization Blog (www.desulf.blogspot.com) ?  Do them a favor … send them the link.

Saturday, August 13, 2011

The Select Few: A Comparison of Databases

“Varicose veins are the result of an improper selection of grandparents.” -- William Osler (Canadian Physician, 1849-1919)
From the aerie of the executive suite, all commercial databases look alike.  From the more ground based perspective of actual users, however, each database is unique.  In the old days, you didn’t go to the same handbook for the answer to every question.  You need to approach online databases in the same spirit.

Today’s post is a sampler of some of the more common subscribed databases you are likely to encounter in a typical corporate environment.  In each case, we searched using the keyword “desulfurization.”  It provides a practical way to distinguish between the types of data included in each database.

///////
LexisNexis
www.LexisNexis.com
LexisNexis is bipolar … that is, the “Lexis” part of the system is where you go for anything pertaining to law.  The “Nexis” segment is all about news.  Both parts are vast in scope, but entirely different in purpose.  If you are following a legal issue, you will search in Lexis.  If you are looking for news on any matter, you will search Nexis.

It is difficult to get a good sense of
LexisNexis without a trial.  Still, LexisNexis offers a couple of free windows into its rich array of resources that give you a taste of what the vendor has to offer.  Go to http://law.lexisnexis.com/webcenters/lexisone/  and explore.  Better yet, contact a LexisNexis rep to arrange a trial subscription.
///////
 “Desulfurization” Example
LEXISNEXIS
William & Mary Environmental Law and Policy Review
Article: China's Renewable Energy Law: A Platform for Green Leadership?
Fall, 2010
35 Wm. & Mary Envtl. L. & Pol'y Rev. 1
Author
Joel B. Eisen*
Excerpt
Introduction
China is making large investments in solar and wind power technology as a cornerstone of its climate change policy. It has shown that it can build solar and wind energy farms in a hurry and has exceeded the targets announced in recent years for new capacity. If it met the even more audacious goals it has announced for 2020 and beyond, it would be a world leader in renewable energy. China has extensive regions where solar 3 and wind 4 could generate electricity at low costs. A 2009 study by researchers from Harvard and Tsinghua universities concluded that wind power could accommodate all of the increased demand for electricity projected for 2030 in China. 5 As Secretary of Energy Steven Chu testified before the Senate in 2009, "China has already made its choice. China is spending about $ 9 billion a month on clean energy." 6 In 2008, the Chinese government invested 3.8 billion RMB (approximately $ 560 million) in green technology, representing an annual growth of over twenty percent. 7 By 2009, China overtook the United States in annual spending on renewables, although it still remained behind in terms of total installed capacity. 8 Chinese firms are both greentech makers and overseas investors. 9 In 2009, the China-based Shenyang Power Group announced a $ 1.5 billion joint venture to develop a 36,000-acre wind farm in Texas with the U.S. Renewable Energy Group and Austin-based Cielo Wind Power. 10
source: https://litigation-essentials.lexisnexis.com/webcd/app?action=DocumentDisplay&crawlid=1&doctype=cite&docid=35+Wm.+
///////
DIALOG COMPENDEX
http://www.dialog.com/
Dialog is a system of hundreds of databases in virtually every subject area.  For our purpose, we’ll focus on just one of them … Compendex.  According to the Dialog Web …

“The Ei Compendex® database is the machine-readable version of Engineering Index, which provides abstracted information from the world's significant engineering and technological literature. Ei Compendex provides worldwide coverage of more than 4,500 journals and selected government reports and books. Subjects include: civil, energy, environmental, geological, and biological engineering; electrical, electronics, and control engineering; chemical, mining, metals, and fuel engineering; mechanical, automotive, nuclear, and aerospace engineering; computers, robotics, and industrial robots”


Search Compendex when you want technical articles on an engineering topic.


“Desulfurization” Example

DIALOG COMPENDEX
The Research of Adsorptive Separation Process and Model for Basic Nitrogen Removal from Fuel by Solid Phase Coordination Extraction
///////


SCIENCEDIRECT
www.ScienceDirect.com
ScienceDirect is one of my favorite databases.  It covers a broad range of subject areas, including catalysis, as well as other chemistry topics.  ScienceDirect is unusual in that you can search it at no charge.  When you find an article you like, you can purchase it for download.  Or, if your organization subscribes, you may be able to download it for free (depending on what is included in the subscription agreement)

Search ScienceDirect for both technical and non-technical journal articles.

“Desulfurization” Example
SCIENCEDIRECT
Fuel Processing Technology, Volume 92, Issue 10, October 2011, Pages 1842-1848
Polyoxometalate-based ionic liquids as catalysts for deep desulfurization of fuels
Wenshuai Zhu (a), Wangli Huang (b), Huaming Li (a), Ming Zhang (a), Wei Jiang (a), Guangying Chen (c) and Changri Han (c)
lihm@ujs.edu.cn
a School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
b School of the Environment, Jiangsu University, Zhenjiang 212013, PR China
c School of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, PR China
Abstract
In order to obtain the ultra low-sulfur diesel, deep desulfurization of diesel oil has become a vital subject of environmental catalysis studies. Extraction and catalytic oxidation desulfurization (ECODS) system is one of the most promising desulfurization processes. A series of Keggin-type POM-based ionic liquids hybrid materials [MIMPS]3PW12O40·2H2O (1-(3-sulfonic group) propyl-3-methyl imidazolium phosphotungstate), [Bmim]3PW12O40 (1-butyl 3-methyl imidazolium phosphotungstate), [Bmim]3PMo12O40 (1-butyl 3-methyl imidazolium phosphomolybdate) and [Bmim]4SiW12O40 (1-butyl-3-methyl imidazolium silicotungstate) have been developed in this study, and the reaction has performed using the POM-ILs materials as catalysts, H2O2 as oxidant, and ionic liquid (IL) as solvent. Through experimental evaluations, [MIMPS]3PW12O40·2H2O was found to be the best catalyst, with an S-removal of 100% at 30 °C for 1 h. The main factors affecting the process including temperature, catalyst dosage, and O/S (H2O2/DBT) molar ratio were investigated in detail. Under the optimal conditions, DBT (dibenzothiophene) and 4,6-DMDBT (4,6-dimethyl-dibenzothiophene) could achieve high desulfurization efficiency. Moreover, the reaction system also exhibited high activity in actual diesel oil, which could be reduced from 1113 ppm to 198 ppm. The reaction system could recycle 8-times with a slight decrease in activity.
///////
Platts
http://www.platts.com/
Platts products focus on market data for the energy sector.  Traders use the company’s live databases to follow price movements.  Strategists use the data to plan capital expenditures, technical research projects, and so on.  Platts also produces various newsletters containing a combination of analysis and tables of data.  The screen shot below shows a sliver of a typical table …
///////
D&B (Dunn & Bradstreet)
http://www.dnb.com/
Think of D&B as a sort of credit reporting agency for businesses.  When you want to do business with a company, search D&B to learn how reliable they are at paying their bills, as well as other useful information.  The most cost effective way to find and download reports is via subscription.  But you can also search ad hoc.  Go to http://www.dnb.com/ and search for Sulphco, for example.
///////

When it comes to online database subscriptions, here are two tips:


1) SELECT databases that will help your organization achieve its goals and objectives
2) TRAIN your people to use the SELECTED databases

Jean Steinhardt Consulting can help you TRAIN your people to use the databases you have selected.  A simple action plan to get you started ...

a) FOLLOW the Desulfurization Blog (www.desulf.blogspot.com)
b) ADVISE your people to follow it, as well
c) ADD the blog as a feed to your organization's Intranet
d) CONSIDER creating, or hiring someone else (like Jean Steinhardt Consulting) to create a blog specific to your organization ... a blog that focuses on specific goals, using the particular databases you have selected.  The blog will provide real world examples of how best to find the information your people need to be as productive as possible.

Sunday, August 7, 2011

Blog Alert: Retraction Watch

"All Along the Watchtower" (a song written and recorded by American singer-songwriter Bob Dylan)

NPR – National Public Radio (http://www.npr.org/) – has done it again.  My main source of news I can trust, NPR recently highlighted a blog that follows retractions published by scientific journals.  It is called Retraction Watch (http://retractionwatch.wordpress.com).



The goal of the two blog owners  … Adam Marcus, managing editor of Anesthesiology News and Ivan Oransky, the executive editor of Reuters Health, is to make it easy to find retractions pertaining to scientific articles.  They describe their mission in their first post, an excerpt of which appears below …
///////
So why write a blog on retractions?

First, science takes justifiable pride in the fact that it is self-correcting — most of the time. Usually, that just means more or better data, not fraud or mistakes that would require a retraction. But when a retraction is necessary, how long does that self-correction take? The Wakefield retraction, for example, was issued 12 years after the original study, and six years after serious questions had been raised publicly by journalist Andrew Brian Deer. (Thanks to commenter Tutak for letting us know about this error.) Retractions are therefore a window into the scientific process.

Second, retractions are not often well-publicized. Sure, there are the high-profile cases such as Reuben’s and Wakefield’s. But most retractions live in obscurity in Medline and other databases. That means those who funded the retracted research — often taxpayers — aren’t particularly likely to find out about them. Nor are investors always likely to hear about retractions on basic science papers whose findings may have formed the basis for companies into which they pour dollars. So we hope this blog will form an informal repository for the retractions we find, and might even spur the creation of a retraction database such as the one called for here by K.M Korpela.

Third, they’re often the clues to great stories about fraud or other malfeasance, as Adam learned when he chased down the Reuben story. The reverse can also be true. The Cancer Letter’s expose of Potti and his fake Rhodes Scholarship is what led his co-authors to remind The Lancet Oncology of their concerns, and then the editors to issue their expression of concern. And they can even lead to lawsuits for damaged reputations. If highlighting retractions will give journalists more tools to uncover fraud and misuse of funds, we’re happy to help. And if those stories are appropriate for our respective news outlets, you’ll only read about them on Retraction Watch once we’ve covered them there.

Finally, we’re interested in whether journals are consistent. How long do they wait before printing a retraction? What requires one? How much of a public announcement, if any, do they make? Does a journal with a low rate of retractions have a better peer review and editing process, or is it just sweeping more mistakes under the rug?
///////

I recommend a bookmark for this blog, maybe even a “follow.”  Why?  Because you never know.  When your research depends, in part, on published work in your field, it makes sense to be sure none of the articles, or some of the data presented in them, has been retracted.

Just for a quick example, search the blog using key word: "oil."  Result …
///////
Did a NOAA scientist “retract” an overoptimistic oil spill report?

Yesterday, on a story about a Congressional hearing on the progress of oil spill cleanup in the Gulf of Mexico, the Guardian ran the following headline:

BP oil spill: US scientist retracts assurances over success of cleanup

NOAA’s Bill Lehr says three-quarters of the oil that gushed from the Deepwater Horizon rig is still in the Gulf environment while scientists identify 22-mile plume in ocean depths

The story, as do those in the Los Angeles Times, The Hill, and the New Orleans Times-Picayune, among others, point out that Lehr’s testimony seemed at odds with the almost celebratory atmosphere surrounding the release of a National Oceanic and Atmospheric Administration (NOAA) report two weeks ago, “BP Deepwater Horizon Oil Budget: What Happened To the Oil?”

The coverage yesterday also noted that other scientists have criticized the report, and that a study in Science this week suggests there’s still an underwater plume of oil in the Gulf.

But did Lehr actually “retract” assurances over the cleanup’s success, or the report itself?
///////

The blog enables searching posts by author, country, journal, subject, and type

Add it to your “due diligence” list.

///////
A feed of the Desulfurization Blog (www.desulf.blogspot.com) makes an excellent addition to your organization’s Web.  And the price is right … it’s free!