Palynological studies of sedimentary sequences issued from swamps located in the highlands of the... more Palynological studies of sedimentary sequences issued from swamps located in the highlands of the KBNP (Kahuzi-Biega National Park) on the western divide of Kivu in Eastern D.R. Congo, revealed important environmental events that occurred during Upper Quaternary. The Cishaka sequence covers the last 35000 years. In the Upper Pleistocene, during the “Kalambo Interstadial” period (32000- 26000 years BP), a mixed forest spread out under a moderately warm-wet climate. In the course of the “Mount Kenya Hypothermal” regressive phase (25000- 15000 years BP), in the “Last Glacial Maximum” (20000-18000 years BP) takes place an exceptional expansion of open grasslands that evidenced an important drought. After that, the revival of an afro-montane forest growing under cold-wet climatic conditions is recorded, but that one is temporarily interrupted by theYoung Dryas dry pulse. At the Humid Holocene Period (10000-7000 years BP), with the increase of rainfall, the Kivu Lake level is raising when...
SIGLEAvailable at INIST (FR), Document Supply Service, under shelf-number : RP 185 (3385) / INIST... more SIGLEAvailable at INIST (FR), Document Supply Service, under shelf-number : RP 185 (3385) / INIST-CNRS - Institut de l'Information Scientifique et TechniqueFRFranc
Le procede d'evacuation de liquides, notamment des eaux usees ou pluviales, a partir d'un... more Le procede d'evacuation de liquides, notamment des eaux usees ou pluviales, a partir d'un reservoir collecteur (A) vers un point d'evacuation (R) via une conduite (9) est denomme "refoulement descendant". Il consiste a installer au moins une pompe (7) dans le reservoir collecteur quel que soit le profil de la conduite, a maintenir la ligne piezometrique en regime permanent (LPRP) de pompage au dessus de la conduite entre le reservoir collecteur et le point d'evacuation quel que soit le profil de la conduite, de facon a obtenir une vitesse d'ecoulement dans la conduite superieure ou egale a la vitesse d'autocurage, et a maintenir la conduite entierement pleine meme si la pompe est a l'arret.
Archive institutionnelle de l'Université de Genève - Institutional Repository of the Univers... more Archive institutionnelle de l'Université de Genève - Institutional Repository of the University of Geneva.
Palynological studies of sedimentary sequences issued from swamps located in the highlands of the... more Palynological studies of sedimentary sequences issued from swamps located in the highlands of the KBNP (Kahuzi-Biega National Park) on the western divide of Kivu in Eastern D.R. Congo, revealed important environmental events that occurred during Upper Quaternary. The Cishaka sequence covers the last 35000 years. In the Upper Pleistocene, during the “Kalambo Interstadial” period (32000- 26000 years BP), a mixed forest spread out under a moderately warm-wet climate. In the course of the “Mount Kenya Hypothermal” regressive phase (25000- 15000 years BP), in the “Last Glacial Maximum” (20000-18000 years BP) takes place an exceptional expansion of open grasslands that evidenced an important drought. After that, the revival of an afro-montane forest growing under cold-wet climatic conditions is recorded, but that one is temporarily interrupted by theYoung Dryas dry pulse. At the Humid Holocene Period (10000-7000 years BP), with the increase of rainfall, the Kivu Lake level is raising when...
SIGLEAvailable at INIST (FR), Document Supply Service, under shelf-number : RP 185 (3385) / INIST... more SIGLEAvailable at INIST (FR), Document Supply Service, under shelf-number : RP 185 (3385) / INIST-CNRS - Institut de l'Information Scientifique et TechniqueFRFranc
Le procede d'evacuation de liquides, notamment des eaux usees ou pluviales, a partir d'un... more Le procede d'evacuation de liquides, notamment des eaux usees ou pluviales, a partir d'un reservoir collecteur (A) vers un point d'evacuation (R) via une conduite (9) est denomme "refoulement descendant". Il consiste a installer au moins une pompe (7) dans le reservoir collecteur quel que soit le profil de la conduite, a maintenir la ligne piezometrique en regime permanent (LPRP) de pompage au dessus de la conduite entre le reservoir collecteur et le point d'evacuation quel que soit le profil de la conduite, de facon a obtenir une vitesse d'ecoulement dans la conduite superieure ou egale a la vitesse d'autocurage, et a maintenir la conduite entierement pleine meme si la pompe est a l'arret.
Archive institutionnelle de l'Université de Genève - Institutional Repository of the Univers... more Archive institutionnelle de l'Université de Genève - Institutional Repository of the University of Geneva.
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