Báo cáo khoa học: " Utilisation d’une fonction de forme pour l’établissement d’un tarif de cubage du chêne indigène" pot

... définie de 0 à H est égale au volume compris entre ces niveaux. Article de recherche Utilisation d’une fonction de forme pour l’établissement d’un tarif de cubage du chêne ... de référence et de l’élaboration d’un tarif de cubage. En général, les méthodes actuelles de calcul du volume de référence impliquent, à partir des...

Ngày tải lên: 09/08/2014, 02:21

... fonction du déficit de saturation de l’air, pour 4 classes d’irradiance énergétique. Pour des déficits de saturation en vapeur d’eau de l’air ex- cédant 3 kPa, la conductance ... variations de la conductance de couvert comme des modi- fications de la seule composante de sur- face. Celles-ci traduisent les modifications des caractéristiqu...

Ngày tải lên: 08/08/2014, 23:21

... ou des mesures de conductance foliaire à l’aide d’un poromètre devront être réalisées sur notre matériel pour confirmer la validité de cette hypothèse. A ce stade de notre ... consignées, pour chacune des stations et pour l’ensemble de l’échantillon, les variations de la teneur moyenne en eau des aiguilles des 4 géné- rations en fonction...

Ngày tải lên: 09/08/2014, 04:20

... least two orders of magnitude, were derived. Results PLDa2 preparation PLDa2 was produced according to Scha ¨ ffner et al. [8] with slight modifications as described in Experi- mental procedures, which ... phos- pholipase D homologues that includes phospholipid synthases and putative endonucleases: identification of duplicated repeats and potential active site residues. Protein Sci 5, 914–922....

Ngày tải lên: 19/02/2014, 02:20

... NADP-dependent glycerol dehydro- genase was also suggested to be functional in the catabolism of DHA [2]. Another function of a glycerol dehydrogenase is to reduce glyceraldehyde. d-Glyceraldehyde ... similar activity with l-glyceraldehyde, we would assume that the role of this enzyme is to convert d-glyceraldehyde and l-glyceraldehyde to gly- cerol. d-Glyceraldehyde is an intermediate in the...

Ngày tải lên: 19/02/2014, 06:20

... chromatography. The [ 3 H]-ceramide formed was identified by comigration of N-palmi- toyl- D-erythro-sphingosine. The spots, which were identified as [ 3 H]-ceramide, were scrapped off and the radioactivities ... signaling cascade to induce MMP-9, small interfering RNA (siRNA) technology was used. Introduction of siRNA oligo- nucleotide targeting smpd-1 ⁄ aSMase mRNA reduced the acid induction...

Ngày tải lên: 07/03/2014, 09:20

... conducted in transformed cells using overexpression systems. Hence to date, PLD expression has yet to be demonstrated at a Correspondence to K. Cadwallader, Respiratory Medicine Division, Department ... and O À 2 generation, with the former response being more dependent on PtdCho-derived PtdOH. Identification and localization of PLD isoforms in neutrophils To identify the PLD isoform(s) prese...

Ngày tải lên: 07/03/2014, 15:20

... the GDP-mannose-4,6-dehydratase (GMD) into GDP-4-keto-6-deoxy- D -mannose, and t hen redu ced to GDP- D -rhamnose by GDP-4-keto-6-deoxy- D -mannose reductase (RMD). Here, we describe the enzymatic ... into GDP-4-keto-6-deoxy- D -mannose by GDP-mannose-4,6- dehydratase (GMD) (Fig . 1). This 4-keto-6-deoxy interme- diate can be reduced to the GDP-monodeoxyhexose, GDP- L -fucose, GDP- D -rhamnos...

Ngày tải lên: 17/03/2014, 11:20

... agreement with a tetrasaccharide repeating unit containing three residues of 6-deoxy sugars, one residue of ara4dHex and one O-acetyl group. In addition to the major signals described above, the NMR ... O-polysaccharide from Citrobacter braakii O6 (Eur. J. Biochem. 270) 2735 Citrobacter PCM 1487 or C. youngae PCM 1488 (sero- group O36). Neither the O-deacetylated OPS nor the Smith-degraded OP...

Ngày tải lên: 23/03/2014, 17:22

... hệ tiêu chuẩn tổng hợp để đánh giá, phân loại mặt đờng phục vụ cho công tác tổ chức khai thác, duy tu sửa chữa mặt đờng (xem bảng 7). Bảng 7 Phân loại đờng Kết cấu mặt đờng Phân loại đờng ... khai thác mặt đờng ô tô TS. nguyễn huy thập Bộ môn Giao thông CC - ĐH GTVT Tóm tắt: Bi báo trình by cơ sở lý thuyết các tiêu chuẩn kỹ thuật về đo đạc, đánh giá chất lợng khai thác mặt

Ngày tải lên: 06/08/2014, 05:21