Výsledky vyhledávání - "Petr Heřmánek"

Akademický článek

Influence of the excavator hydraulic system efficiency on the productivity

Publikováno v: Research in Agricultural Engineering, Vol 69, Iss 1, Pp 18-27 (2023)

This paper presents the experimental research of factors influencing the UDS 214 excavator efficiency. The hydraulic oil flow rate is measured in hydraulic circuits for controlling the moving of the bucket of the UDS 214 excavator. From the measure

Externí odkaz: https://doaj.org/article/9beede77f18c4022a9f6e85dab0bc811

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Akademický článek

Effect of drying temperature in hop dryer on hop quality

Autor: Adolf Rybka, Petr Heřmánek, Ivo Honzík

Publikováno v: Research in Agricultural Engineering, Vol 67, Iss 1, Pp 1-7 (2021)

One of the qualitative characteristics of both green and dried hops is the content of hop essential oils which are contained in a quantity of 0.5 to 3.5%, depending on the hop variety. These essential oils are heat labile substances because the tempe

Externí odkaz: https://doaj.org/article/2f322918bed741399b8c373c45eeb034

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Akademický článek

Effect of drying temperature on the content and composition of hop oils

Autor: Adolf RYBKA, Karel KROFTA, Petr HEŘMÁNEK, Ivo HONZÍK, Jaroslav POKORNÝ

Publikováno v: Plant, Soil and Environment, Vol 64, Iss 10, Pp 512-516 (2018)

In terms of content, the paper is aimed at analysing and comparing the quality of fresh green hops and hops dried at two drying temperatures - 55°C (in the traditional manner) and 40°C (using the so-called gentle drying), regarding the maximum pres

Externí odkaz: https://doaj.org/article/ee149c103fe34f9690de20c893fa6843

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Akademický článek

Parameters of the drying medium and dried hops in belt dryer

Autor: Adolf Rybka, Petr Heřmánek, Ivo Honzík, Karel Krofta

Publikováno v: Research in Agricultural Engineering, Vol 63, Iss Special Issue, Pp S24-S32 (2017)

An important factor in hop growing is the process of drying. For this purpose belt dryers with follow-up conditioning are the most widespread but they are not ideal. In this respect, an analysis of the drying process was carried out in the belt dryer

Externí odkaz: https://doaj.org/article/be151a4d8ccd4295846b6438624bf6a6

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Measurement of the X-ray computed tomography instrument geometry by minimization of reprojection errors—Implementation on experimental data

Autor: Massimiliano Ferrucci, Petr Heřmánek, Evelina Ametova, Elia Sbettega, Michal Vopalensky, Ivana Kumpová, Daniel Vavřík, Simone Carmignato, Tom Craeghs, Wim Dewulf

Publikováno v: Precision Engineering

© 2018 Elsevier Inc. A procedure for measuring the geometry of X-ray computed tomography (CT) instruments is applied to an experimental CT instrument. In this study, the geometrical measurement procedure is implemented with the CT 2 reference object

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ab3e8dfe0f56f77abf3675939b4bbf9e

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Measurement of the X-ray computed tomography instrument geometry by minimization of reprojection errors—Implementation on simulated data

Autor: Massimiliano Ferrucci, Wim Dewulf, Evelina Ametova, Petr Heřmánek, Simone Carmignato

Publikováno v: Precision Engineering

© 2018 The X-ray computed tomography (CT) measurement process suffers from a variety of error sources including geometrical misalignments of the CT imaging components: X-ray source focal spot, rotation stage, and X-ray detector. Effective correction

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dd0526cedc6879b1e2d9abe8a431cedb
http://hdl.handle.net/11577/3279962

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Enhanced dimensional measurement by fast determination and compensation of geometrical misalignments of X-ray computed tomography instruments

Autor: Simone Carmignato, Massimiliano Ferrucci, Gabriel Probst, Petr Heřmánek, Evelina Ametova, Tom Craeghs, Bart Boeckmans, Wim Dewulf

Publikováno v: CIRP Annals

Full geometrical alignment of CT instruments remains a complicated endeavor. This paper therefore presents a fast and comprehensive method for determination and compensation of geometrical misalignments. First, a reference object, consisting of spher

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8d472a4ca4413801d64f9e71531fb1c0

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