Advanced Query Help

Introduction
New retrieval criteria
Standard query

Introduction

Advanced query works exactly the same way as standard query. The main and only difference resides in the presentation of the retrieval query form. The advanced one presents more selection criteria and then is more condensed as the standard ones. New criteria are the following :

3 new criteria to specify a reactant
possibility to select several processes
bibliographic criteria

We will try also through this help to explain some details on the database data structure to give you the opportunity to make more accurate searches.

New retrieval criteria

On reactant

In previous versions (earlier than 3.1) when specifying a reactant, one was obliged to give a formula. This restriction is now obsolete and search can be done only specifying a ionization state as giving 35+ for example. Nevertheless, if more than 100 reactants satisfy your request, the program will stop, asking you to restrict your query. This of course now also apply to standard query.

Note : when specifying a reactant, don't forget that by default, the system search molecules in ground state : no ionization and no "strong" excitation.

Reactants : for reactants 3 new fields are available :

Chemical elements : just specify from 1 to 3 reactants that you would like in the molecule. Don't misunderstand, elements here apply only to the reactant and not to the process. If every elements in a reactant is in the process, not every element of the process will be in the molecule.
Chemical families : just as above, but for chemical families.
Number of elements : number of chemical elements inside the molecule. For example HNO3 as 3 elements. Here again don't misunderstand with the number of element of the process

Processes

One can specify here one to three physical processes or properties.

Bibliograohic references

Year : one can give a specific year or a bound of years. Year can be written on 2 or 4 digits (1995 is same as 95).
Author : Search can be done on authors' name. Name must be written fisrt name first, then initials. Names in GAPHYOR are truncated to 15 characters and type is non sensitive.
For the search one can also use the truncation character "*". It can be useful if you don't know the exact initials of the name. Truncation character can only be used at the end of the name. Then a search on "magne*" will give differents papers with one author named "Magne L" or "Magnenat T" or "Magnera N".
Search on authors works the same way as a search on reactants. On the first pass a list of the bibliographic references which match the request is proposed. One can select one of these references or every references.
JournalOne must entered (non sensitive case) the GAPHYOR code of the journal he is looking for.

Last modify, September, 6, 1997