Báo cáo khoa học: "Alimentation oligo-minérale du Pin maritime (Pinus pinaster Soland in Ait) en relation avec quelques caractéristiques physico-chimiques des sols sableux des Landes de Gascogne" pptx

... Variabilité entre populations locales de Pinus pinaster Sol. Le problème du pin méso- g en. Document interne INRA, Bordeaux Intérêt de la filière hybrides interraciaux La différenciation ... la connaissance des provenances de Pinus pinaster. Ann Rech For Maroc 16, 101-153 Gil L (1993) Genetic improvement of Pinus pinaster: variability in med...

Ngày tải lên: 08/08/2014, 19:21

... pin maritime à l’issue de mesures faites en 1993 sur la plantation d’hybrides interra- Article original Variabilité intraspécifique chez le pin maritime (Pinus pinaster Ait) ... un mélange de pollen de 10 arbres de la provenance «mâle». Le produit est donc un hybride moyen de prove- nances en référence non pas à des individus ma...

Ngày tải lên: 08/08/2014, 19:21

... Variation in oleoresin yielding potential of selected Slash pines, For. Sci. 17 (1971) 306-307. [17] Prada M.A., Allué M., Gil L., Pardos J.A., Programa de mejora genética de Pinus pinaster Ait grandes ... in future to construct models of stand resin production. 2. MATERIALS AND METHODS 2.1. Study area The experiment took place in pure, even-aged stands of Pinus pinaster locate...

Ngày tải lên: 08/08/2014, 14:22

... nước được đánh giá theo giá trị gradient đẩy nổi (I đn ) và gradient giới hạn đùn đất (I gh ). I đn =  H/ L Igh= (  - 1) (1- n) (3) I đn - gradient đẩy nổi của dòng thấm theo chiều ... 4. BI NGUYấN HNG. Khỏi quỏt v hin trng ờ sụng ng bng Bc B sụng Hng v chin lc an ton ờ n nm 2010. Tp chớ Thu li, s 327/1999. 5. TRN VN T. Nhng s c liờn quan n bin dng thm v s phỏ hu ờ ta khu .....

Ngày tải lên: 16/03/2014, 04:20

... phẩm. DETERMINATION OF CARBAMATE RESIDUES IN VEGATABLES, BULBS AND WATER Nguyen Van Liem, Nguyen Van Dong, To Thi Hien University of Science, VNU-HCM ABSTRACT: A method for the determination ... based on High Performance Liquid Chromatography with fluorescence detection after derived post column. Solid samples were grinded in MeOH, clarify. Extraction liquid or water samples were c...

Ngày tải lên: 27/06/2014, 10:20

... method for trace determination of the pesticide Diazinon using adsorptive square-wave stripping voltammetry (AdSWSV) at the dropping mercury electrode (DME) was described. The pesticide was accumulated ... and a well-defined stripping peak was obtained at -1012 mV vs Ag/AgCl/KCl electrode in 0.4 N ammonium acetate electrolyte solution pH 4.3. Peak current was linear over Diazinon concentrat...

Ngày tải lên: 27/06/2014, 11:20

... Feller, An Introduction to Probability Theory and Its Application, New York-Chichester-Brisbane-Toronto, Singapore, 1971. [2] Shedon M. Ross, Introduction to prabbility and statistics for engineers ... Introduction to prabbility and statistics for engineers and scientists, New York-Chichester-Brisbane-Toronto, Singapore, 1987. TẠP CHÍ KHOA HỌC VÀ CÔNG NGHỆ, ĐẠI HỌC ĐÀ NẴNG - SỐ 5(28).20...

Ngày tải lên: 22/07/2014, 20:20

... công. Tài liệu tham khảo [1]. Phạm Duy Hữu. Công nghệ bê tông và bê tông đặc biệt. NXB XD, 2005 [2]. Kenneth Derucher. Materials for civil and highway engineers. Califfornia -1998 [3]. Les ... Performances- Malier-Paris-1992 [4]. High Perfomance Concrete- Okamura-Ozawa, K-1995. [5]. Self Compacting Concrete-Kzumaca Ozawa and Masahiro Ouchi-TOKYO-2001♦ Tính toán T L và T m cho...

Ngày tải lên: 06/08/2014, 18:20

... life and determine the optimum strategy for maintaining reinforced- concrete structures. This paper presents a predicting model named Life – 365. The model is being widely used in the North America. ... worldwide. A number of models for predicting the service life of concrete structures exposed to chloride environments have been developed to propose measures for increasing the service l...

Ngày tải lên: 06/08/2014, 18:20

... être obtenu est de l’ordre de 32% (il s’agit du volume moyen des clones supérieurs à la moyenne de la population divisé par le volume moyen des clones de l’ensemble de la ... pour- centage d’enracinement diminue (Leakey, 1983). Ceci suggère qu’il y a compétition pour des substances qui aident à la forma- tion des racines. Cependant, l...

Ngày tải lên: 08/08/2014, 19:21