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You searched for +publisher:"Veenman" +contributor:("M.J. van Uven"). Showing records 1 – 3 of 3 total matches.

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1. Wolff von Wuelfing, H.E. Stamvorm en inhoud van den djati in plantsoenen (Tectona grandis L.F.; Verbenaceae).

Degree: 1933, Veenman

The author's procedures and methods were described for compiling General Volume Tables for teak, from which Local Tables can be derived. Only easily and rather accurately measurable characteristics should be used: tree height, length of trunk free of branches and timber-yielding length of trunk and trunk girth at 1.30 metre. Girthes at 1.50 metre and 1.70 metre were also necessary, to avoid abnormal trunk bases. The Table should also contain estimated volumes of whole tree and its parts with bark, and diameter, girths and volumes of the tree without bark at different heights. But more data were needed to construct the Table, primarily the mathematical expression of the trunk form. Two true form quotients are required to represent the trunk form of teak with satisfactory accuracy in a simple equation. Estimation of the form class of an individual tree was only possible by direct measurements, so average form classes were used. These classes for the various trees and stands of one single kind of wood usually varied so little that for any one Table practically only one form class was required. The slight variation in form class of teak can easily be incorporated in the Volume Tables. Advisors/Committee Members: Wageningen University, H.A.J.M. Beekman, M.J. van Uven.

Subjects/Keywords: bosbouw; bomen; volume; tectona grandis; bosopstanden; nederlands indië; Bosinventarisaties; forestry; trees; volume; tectona grandis; forest stands; netherlands east indies; Forest Inventories; cum laude

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APA (6th Edition):

Wolff von Wuelfing, H. E. (1933). Stamvorm en inhoud van den djati in plantsoenen (Tectona grandis L.F.; Verbenaceae). (Doctoral Dissertation). Veenman. Retrieved from http://library.wur.nl/WebQuery/wurpubs/525439 ; urn:nbn:nl:ui:32-525439 ; urn:nbn:nl:ui:32-525439 ; http://library.wur.nl/WebQuery/wurpubs/525439

Chicago Manual of Style (16th Edition):

Wolff von Wuelfing, H E. “Stamvorm en inhoud van den djati in plantsoenen (Tectona grandis L.F.; Verbenaceae).” 1933. Doctoral Dissertation, Veenman. Accessed December 12, 2019. http://library.wur.nl/WebQuery/wurpubs/525439 ; urn:nbn:nl:ui:32-525439 ; urn:nbn:nl:ui:32-525439 ; http://library.wur.nl/WebQuery/wurpubs/525439.

MLA Handbook (7th Edition):

Wolff von Wuelfing, H E. “Stamvorm en inhoud van den djati in plantsoenen (Tectona grandis L.F.; Verbenaceae).” 1933. Web. 12 Dec 2019.

Vancouver:

Wolff von Wuelfing HE. Stamvorm en inhoud van den djati in plantsoenen (Tectona grandis L.F.; Verbenaceae). [Internet] [Doctoral dissertation]. Veenman; 1933. [cited 2019 Dec 12]. Available from: http://library.wur.nl/WebQuery/wurpubs/525439 ; urn:nbn:nl:ui:32-525439 ; urn:nbn:nl:ui:32-525439 ; http://library.wur.nl/WebQuery/wurpubs/525439.

Council of Science Editors:

Wolff von Wuelfing HE. Stamvorm en inhoud van den djati in plantsoenen (Tectona grandis L.F.; Verbenaceae). [Doctoral Dissertation]. Veenman; 1933. Available from: http://library.wur.nl/WebQuery/wurpubs/525439 ; urn:nbn:nl:ui:32-525439 ; urn:nbn:nl:ui:32-525439 ; http://library.wur.nl/WebQuery/wurpubs/525439

2. Campo, a, E.J. Wiskundige waardeering van arbeidspraestaties.

Degree: 1936, Veenman

The greater part of the cost price of palm oil was spent on harvesting the ripe bunches. To harvest at the moment of best ripeness, the bunches had to be collected every 5 to 8 days. An oilpalm estate was divided in 8 divisions of approximately 2000 acres, under supervision of an assistant manager. Topografical differences in the divisions gave rise to very variable harvesting costs. Judging the cost price depended usually on common sense. On flat terrain the oil palms were planted in rows perpendicular to a railway line; on sloping terrain in widely divergent directions. The following labour analysis was drawn up: the labour effort of the harvesters to detect the ripe bunches; the labour effort to climb into the palm trees to cut off the bunches; the labour effort to carry the bunches to the railway; the labour effort to load the bunches into trucks. A formula was derived for the production per labourer. It represented a hyperbola for production per acre from 0 to∞and contained variables mainly dependent on topographic influences. Weather conditions and other influences explained the deviations from the most probable straight lines (reciprocals) and hyperbolae. <p/> Advisors/Committee Members: Wageningen University, M.J. van Uven, J.E. van der Stok.

Subjects/Keywords: werk; analyse; arbeid (werk); arbeidskunde; wiskunde; arbeidsproductiviteit; Werkorganisatie; Personeelsmanagement; work; analysis; labour; work study; mathematics; labour productivity; Organization of Work; Personnel Management

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APA (6th Edition):

Campo, a, E. J. (1936). Wiskundige waardeering van arbeidspraestaties. (Doctoral Dissertation). Veenman. Retrieved from http://library.wur.nl/WebQuery/wurpubs/525467 ; urn:nbn:nl:ui:32-525467 ; urn:nbn:nl:ui:32-525467 ; http://library.wur.nl/WebQuery/wurpubs/525467

Chicago Manual of Style (16th Edition):

Campo, a, E J. “Wiskundige waardeering van arbeidspraestaties.” 1936. Doctoral Dissertation, Veenman. Accessed December 12, 2019. http://library.wur.nl/WebQuery/wurpubs/525467 ; urn:nbn:nl:ui:32-525467 ; urn:nbn:nl:ui:32-525467 ; http://library.wur.nl/WebQuery/wurpubs/525467.

MLA Handbook (7th Edition):

Campo, a, E J. “Wiskundige waardeering van arbeidspraestaties.” 1936. Web. 12 Dec 2019.

Vancouver:

Campo, a EJ. Wiskundige waardeering van arbeidspraestaties. [Internet] [Doctoral dissertation]. Veenman; 1936. [cited 2019 Dec 12]. Available from: http://library.wur.nl/WebQuery/wurpubs/525467 ; urn:nbn:nl:ui:32-525467 ; urn:nbn:nl:ui:32-525467 ; http://library.wur.nl/WebQuery/wurpubs/525467.

Council of Science Editors:

Campo, a EJ. Wiskundige waardeering van arbeidspraestaties. [Doctoral Dissertation]. Veenman; 1936. Available from: http://library.wur.nl/WebQuery/wurpubs/525467 ; urn:nbn:nl:ui:32-525467 ; urn:nbn:nl:ui:32-525467 ; http://library.wur.nl/WebQuery/wurpubs/525467

3. Ossewaarde, J.G. Het proefveldonderzoek bij de rijstcultuur op Java.

Degree: 1931, Veenman

A historical review was given of the development of rice cultivation in Java, of the influence of the Netherlands colonial government on the agricultural methods by advice before and after local research, and of the development of field trial techniques and the organization of systematic research. The principle of randomization was not applied at that time. Tests of significance were made by comparing a given difference with three times its estimated standard deviation. To reduce standard deviation the elimination of a linear trend in fertility for different places was discussed in detail. From the results of field experiments between 1911 and 1926 the relation between expected yield and the standard deviation was studied for different soil types and only the data were used of trials, where fertility of the area was even enough to be chosen as the place for a trial. This relation seemed to be reasonably linear. Attention was paid to the power of a test in relation to standard deviation. In the period considered investigators were more concerned with lack of bias in estimators than their efficiency. In this thesis the importance of efficiency is stressed and more insight is given into the possibilities offered by field experiments. Advisors/Committee Members: Wageningen University, J.E. van der Stok, M.J. van Uven.

Subjects/Keywords: rijst; oryza sativa; proefvelden; indonesië; java; voorzieningen; nederlands indië; rice; oryza sativa; experimental plots; indonesia; java; facilities; netherlands east indies

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APA (6th Edition):

Ossewaarde, J. G. (1931). Het proefveldonderzoek bij de rijstcultuur op Java. (Doctoral Dissertation). Veenman. Retrieved from http://library.wur.nl/WebQuery/wurpubs/525418 ; urn:nbn:nl:ui:32-525418 ; urn:nbn:nl:ui:32-525418 ; http://library.wur.nl/WebQuery/wurpubs/525418

Chicago Manual of Style (16th Edition):

Ossewaarde, J G. “Het proefveldonderzoek bij de rijstcultuur op Java.” 1931. Doctoral Dissertation, Veenman. Accessed December 12, 2019. http://library.wur.nl/WebQuery/wurpubs/525418 ; urn:nbn:nl:ui:32-525418 ; urn:nbn:nl:ui:32-525418 ; http://library.wur.nl/WebQuery/wurpubs/525418.

MLA Handbook (7th Edition):

Ossewaarde, J G. “Het proefveldonderzoek bij de rijstcultuur op Java.” 1931. Web. 12 Dec 2019.

Vancouver:

Ossewaarde JG. Het proefveldonderzoek bij de rijstcultuur op Java. [Internet] [Doctoral dissertation]. Veenman; 1931. [cited 2019 Dec 12]. Available from: http://library.wur.nl/WebQuery/wurpubs/525418 ; urn:nbn:nl:ui:32-525418 ; urn:nbn:nl:ui:32-525418 ; http://library.wur.nl/WebQuery/wurpubs/525418.

Council of Science Editors:

Ossewaarde JG. Het proefveldonderzoek bij de rijstcultuur op Java. [Doctoral Dissertation]. Veenman; 1931. Available from: http://library.wur.nl/WebQuery/wurpubs/525418 ; urn:nbn:nl:ui:32-525418 ; urn:nbn:nl:ui:32-525418 ; http://library.wur.nl/WebQuery/wurpubs/525418

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