What does Open Acccess mean? Simply that everything that we publish is freely available online throughout the world, for you to read, download, copy, distribute, and use (with attribution) any way you wish. No permission is required. Read a detailed definition. If you haven¡¯t got time to read this, there are two things you need to know:

(1) Authors retain copyright, under a Creative Commons Attribution License.

(2) No permission is required to use ¨C or reuse ¨C the content.

The biggest advantage of the OA model is that it provides free, full-text and peer reviewed articles to all interested readers. The high availability, high visibility and timeliness features of its contents lead to its higher citation impact. ^[1]

We know that open-access literature is not free (without cost) to produce. And OA Publishers cover their costs for editorial handling and editing of a paper by charging authors' institutes or research funding agency. The cost of handling and the production of an article is covered through the one-time payment of an Article Processing Charge (APC) for each accepted article. The APC of Open Access Publishers is only a fraction of the average income per paper that traditional, subscription-based Publishers have been earning. As to JGC, authors are asked to pay a fee of 780 USD (or 5000 RMB) for each accepted article except the invited and the ¡®Letters to the Editor¡¯.

[1].Open access citation impact advantage: http://en.wikipedia.org/wiki/Open_access#Authors_and_researchers

According to open access policy, authors retain copyright, under a Creative Commons Attribution License. Important Note: some articles (especially Reviews) may contain figures, tables or text taken from other publications, for which JGC does not hold the copyright or the right to re-license the published material. Please note that you should inquire with the original copyright holder (usually the original Publisher or the original authors), if this material can be further re-used.

According to JGC¡¯ editorial standards, the following abbreviations of common terms may be used throughout the manuscript without definition. Otherwise, please list their definitions when first arriving.

Common_Usage_of_Quantities_and_Units.doc