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.

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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.
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 “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.+
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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
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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.
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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 …
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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.
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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.

1 comment:

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