Please wait, while we are loading the content...
Please wait, while we are loading the content...
| Content Provider | OECD iLibrary |
|---|---|
| Organization | OECD |
| Abstract | Le but de cet essai est de mesurer la biodégradation en fonction du temps d'une substance d'essai présente en faible concentration dans une eau naturelle aérobie et de quantifier les observations sous la forme d'expressions cinétiques. L'essai est réalisé par lots par « l'essai pélagique » ou « l'essai en suspension de sédiments » pour simuler un plan l'eau contenant des solides en suspension ou des sédiments resuspendus. Les flacons d'essai sont incubés dans l'obscurité, à la température environnementale, en aérobiose et sous agitation pendant normalement 60 jours. Au moins deux concentrations différentes de substance d'essai (organique non-volatile ou légèrement volatile) devraient être employées. La concentration maximum de la substance d’essai devrait être de moins de 100µg/L (biodégradation suivant une cinétique de premier ordre) et la plus basse concentration de substance d'essai de préférence comprise dans l’intervalle ‹1-10µg/L. Deux sous-échantillons sont prélevés de chaque flacon d'essai à chaque temps de prélèvement. La dégradation est suivie à intervalles de temps appropriés, en mesurant le 14C résiduel ou la concentration résiduelle de la substance d'essai. La minéralisation totale et la biodégradation primaire sont déterminées par le marquage au 14C de différentes parties de la molécule. Des mesures périodiques du pH et de la concentration en oxygène dans le système d'essai doivent être conduites. |
| Page Count | 22 |
| ISSN | 20745834 |
| e-ISBN | 9789264070554 |
| Language | French |
| Publisher | OECD Publishing |
| Publisher Date | 2004-11-23 |
| Access Restriction | Open |
| Subject Keyword | Environment |
| Content Type | Text |
| Resource Type | Book |
National Digital Library of India (NDLI) is a virtual repository of learning resources which is not just a repository with search/browse facilities but provides a host of services for the learner community. It is sponsored and mentored by Ministry of Education, Government of India, through its National Mission on Education through Information and Communication Technology (NMEICT). Filtered and federated searching is employed to facilitate focused searching so that learners can find the right resource with least effort and in minimum time. NDLI provides user group-specific services such as Examination Preparatory for School and College students and job aspirants. Services for Researchers and general learners are also provided. NDLI is designed to hold content of any language and provides interface support for 10 most widely used Indian languages. It is built to provide support for all academic levels including researchers and life-long learners, all disciplines, all popular forms of access devices and differently-abled learners. It is designed to enable people to learn and prepare from best practices from all over the world and to facilitate researchers to perform inter-linked exploration from multiple sources. It is developed, operated and maintained from Indian Institute of Technology Kharagpur.
Learn more about this project from here.
NDLI is a conglomeration of freely available or institutionally contributed or donated or publisher managed contents. Almost all these contents are hosted and accessed from respective sources. The responsibility for authenticity, relevance, completeness, accuracy, reliability and suitability of these contents rests with the respective organization and NDLI has no responsibility or liability for these. Every effort is made to keep the NDLI portal up and running smoothly unless there are some unavoidable technical issues.
Ministry of Education, through its National Mission on Education through Information and Communication Technology (NMEICT), has sponsored and funded the National Digital Library of India (NDLI) project.
| Sl. | Authority | Responsibilities | Communication Details |
|---|---|---|---|
| 1 | Ministry of Education (GoI), Department of Higher Education |
Sanctioning Authority | https://www.education.gov.in/ict-initiatives |
| 2 | Indian Institute of Technology Kharagpur | Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project | https://www.iitkgp.ac.in |
| 3 | National Digital Library of India Office, Indian Institute of Technology Kharagpur | The administrative and infrastructural headquarters of the project | Dr. B. Sutradhar bsutra@ndl.gov.in |
| 4 | Project PI / Joint PI | Principal Investigator and Joint Principal Investigators of the project |
Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon |
| 5 | Website/Portal (Helpdesk) | Queries regarding NDLI and its services | support@ndl.gov.in |
| 6 | Contents and Copyright Issues | Queries related to content curation and copyright issues | content@ndl.gov.in |
| 7 | National Digital Library of India Club (NDLI Club) | Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach | clubsupport@ndl.gov.in |
| 8 | Digital Preservation Centre (DPC) | Assistance with digitizing and archiving copyright-free printed books | dpc@ndl.gov.in |
| 9 | IDR Setup or Support | Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops | idr@ndl.gov.in |
|
Loading...
|