Báo cáo khoa học: "Évaluation de deux méthodes acoustiques de détermination du module d’élasticité de bois de mélèze hybride jeune (Larix x eurolepis Henry) - comparaison avec une méthode normalisée en flexion statique" potx

... de deux méthodes acoustiques de détermination du module d’élasticité de bois de mélèze hybride jeune (Larix x eurolepis Henry) - comparaison avec une méthode normalisée en ... du bois sur la qualité des droites de régression obtenuesLes régressions simples entre le module de référenceet ceux déduits des deux méthodes acoustiques étant éta-blies, ... constatonsl’existence d une corrélation négative et très hautementsignificative entre la masse volumique et les résidus des deux droites de régression déduites des deux méthodes acoustiques...

Báo cáo khoa học: "Évaluation de la biomasse arborée et arbustive dans une séquence de dégradation de la suberaie à Cytise de Kroumirie (Tunisie)" potx

... nom, à l’estdes deux stations précédentes.Au moment où cette étude a été entreprise, ces trois par-celles appartenaient à des parcelles en fin de rotation(intervalle entre deux démasclages). ... la richesse du sol en éléments fertilisants.Le passage du stade 1 au stade 2 de la séquence étu-diée s’est traduit par une diminution de la densité deschênes lièges à l’hectare, en particulier ... Distribution des effectifs des arbres en fonctdes diamètres du bois à 1.30 m (DBH) dans 6 parcelles de 1 ha chacune appar-tenant à des différents stades de non-dégradation (notés 1) et de dégradation...

Báo cáo khoa học: "Évaluation en jeune plantation de 2 types de plants de douglas mycorhizés artificiellement" potx

... située à l’extrémité nord-ouest des monts du Livradois-Forez, à 500 m d’altitude. Le terrain pr - test de Student résultant de la comparaison de lasomme des carrés des écarts ... sites en ques-tion présentent des points communs : une plantation après coupe de taillis, une tex-ture sablo-limoneuse, un pH proche de 4,5 et une forte déficience en phosphore. ... pépinière des Barres (Loiret)dans le premier cas et de celle de Peyrat-le-Ch - teau (Haute-Vienne) dans le second.Les essais en plantationDispositifs expérimentauxCe sont des...

Tài liệu Báo cáo khoa học: Insights into and speculations about snake venom metalloproteinase (SVMP) synthesis, folding and disulﬁde bond formation and their contribution to venom complexity pdf

... N-terminalsequencing and MS ( ) [53]. Cysteine resi-dues are numbered according to catrocol-lastatin ⁄ VAP2B [33]. (- - - -) is the onlycoincident bond determined by bothmethods.Snake venom ... Niu L (1999) Structure of acutoly-sin-C, a haemorrhagic toxin from the venom of Agkis-trodon acutus, providing further evidence for themechanism of the pH-dependent proteolytic reaction ofzinc ... on venom complexity.Reducing gels of Crotalus atrox and Bothrops jararacavenom, as compared to nonreducing gels, indicatedthat apparent venom complexity is reduced by 60%due to disul de bond...

Tài liệu Báo cáo khoa học: "Evaluation of Machine Translations by Reading Comprehension Tests and Subjective Judgments" doc

... sufficiently to give a crude measure of predictability from sentence judgments. However, in the absence of some demon- strated relationships, it would appear undesirable to depend on sentence ... they are made along with judg- ments of human translated sentences. When the sign test was applied to the differences in number of clear and unclear judgments of individual sentences under the ... separate sentence test were used here. Design The sixty sentences, all in machine translation, were judged by twenty five subjects. Twenty five different subjects judged the sentences in human...

Tài liệu Báo cáo khoa học: "Evaluation challenges in large-scale document summarization" doc

... EAgreement between human extracts X X X X X Agreement human extracts and automatic extracts X X X X X Agreement human abstracts and human extracts X Non-binary decisions X XTakes random agreement into ... agreement into account by design X XFull documents vs. extracts X XSystems with different sentence segmentation X XMultidocument extracts X X X XFull corpus coverage X XFigure 15: Properties ... J2Sentence inExtractSentence notin ExtractSentence inExtractA B A + BJ1Sentence notin ExtractC D C + DA + C B + D N = A +B + C + DFigure 3: Contingency table comparing sentencesextracted...

Tài liệu Báo cáo khoa học: "Evaluation of Semantic Clusters" docx

... have been determined between the clusterings of the system and the expert, the next step is to compute the F-measure between the two clusterings. Rather than populating separate con- tingency ... classes provided by human experts. 2 The Need Although there has been a lot of work done in ex- tracting semantic classes of a given domain, rela- tively little attention has been paid to the ... provided by three different experts are shown in Ta- ble 3. We have also experimented with the use of WordNet to improve the classes obtained by a dis- tributional technique. Some initial experiments...

Báo cáo khoa học: Evaluation of potential regulatory elements identi®ed as DNase I hypersensitive sites in the CFTR gene doc

... evaluate theirpotential role in CFTR expression.Noncytotoxic doses of mitomycin C, a DNA cross-linking reagent have been shown to preferentially alter theexpression of inducible genes [19]. Mitomycin ... Genetics, Institute of Molecular Medicine, Oxford University, John Radclie Hospital, UK;2Center for Biological Sequence Analysis, Biocentrum DTU, Technical University of Denmark, Lyngby, DenmarkThe ... DHS in regulation of CFTR expres-sion. The ®rst series of experiments evaluated potentialenhancer activity of the intragenic DHS in transienttransfection of reporter/enhancer constructs. We haveshown...

Báo cáo khoa học: "EVALUATION OF NATURAL LANGUAGE INTERFACES TO DATABASE SYSTEMS: A PANEL DISCUSSION " ppt

... its human intermedlary[l]? What are the independent variables that must be allowed for? What tools are available to determine user bias and experience beforehand, and user satisfaction afterward? ... Bibliography [I] Malhotra, A., =Design Criterla for a Knowledge-Based English Language System for Management: An Experlmental Analysis", Ph.D. Thesis, MIT, MAC TR-146, 1975. 29 ... linguistic phenomena that a system correctly processed. Missing has been a discussion of their importance and a similar list of unhandled phenomena. Only occasionally were even informal evaluations...

Báo cáo khoa học: "EVALUATION OF NATURAL LANGUAGE INTERFACES TO DATA BASE SYSTEMS" pdf

... fra~encs 8584 694 823 As can be seen, several statistics show siailaritias: sentence length, message length, fragment length, per- centage of words in sentences and fragments. The close- ... given here. Table 1 shows the comparison of the three modes. TABLE 1 ~-_ _~ T-__/~ c Sentence length 6.8 6.I 7.8 Message length 9.5 10.3 7.0 Frequent length 2.7 2.8 2.8 Z words in sentences ... addition) 5.0 Considering the wide range of R k'r- syntax [7], the pau- city of complex sentences is surprising. The use of definitions which often involved complex constructions (relative...

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