Finishing production of spiroid worm shaft by varied centre distance and by appling grinding wheel banking angle correction

2016 ◽  
Vol 7 (1) ◽  
pp. 13-19
Author(s):  
I. Dudás ◽  
S. Bodzás ◽  
K. Bányai
Keyword(s):  
Production Technology ◽  
Grinding Wheel ◽  
Production Parameters ◽  
Angle Correction ◽  
Main Production ◽  
Conical Worm ◽  
Spiroid Worm ◽  
Banking Angle

The objectives of this publication are to present a production technology which is a finishing production of conical worm using changing of centre distance between the worm and the grinding wheel and banking angle correction at the same time. We will determine the necessary optimum grinding wheel profiles for the manufacturing in light of the production tolerances. We will determine the function connections between the main production parameters.

scholarly journals Applying Projective Geometry in Design of Worm Manufacturing

2013 ◽  
Vol 581 ◽  
pp. 77-81 ◽  
Author(s):  
Zsuzsa Balajti ◽  
József Ábel
Keyword(s):  
Mechanical Engineer ◽  
Euclidean Space ◽  
Projective Space ◽  
Production Process ◽  
Grinding Wheel ◽  
Space Model ◽  
Constant Pitch ◽  
Kinematical Model ◽  
Engineer Work ◽  
Conical Worm

The mathematical describing of the production process in mechanical engineer work in the euclidean space model and the base of the analytical describing of the projective space model is practically identical in the form, which makes it reasonable to discuss of the production geometry to approach of the projective geometrical negotiation in the . It is a fact that in one of the cases, using the approach of a projective geometrical connection and the mathematical-kinematical model resulted in expansion in the field of production precision, specifically considering the examination of the production of the conical worm by grinding wheel. The abstraction of the production geometry on projective space model has a few results in case of conical worms. The elliptical errors in production of the conical worm with arched or anything profile by grinding wheel can be eliminated by this method way to achieve the constant pitch, the torsion of profile and others.

scholarly journals Results of egg production in different housing systems

2007 ◽  
Vol 23 (5-6-1) ◽  
pp. 497-502 ◽  
Author(s):  
L. Peric ◽  
N. Milosevic ◽  
N. Tolimir ◽  
D. Zikic
Keyword(s):  
Egg Production ◽  
Housing System ◽  
Housing Density ◽  
Egg Weight ◽  
Percentage Mortality ◽  
Housing Systems ◽  
Production Parameters ◽  
Cage System ◽  
Main Production ◽  
Floor System

The aim of this work was to present the production results of laying hens kept in different housing systems - conventional cages with different stocking densities, enriched cages or in houses with a range. The used hybrid was Shaver 579 (564 birds). The main production parameters were monitored: No. of laid eggs, laying percentage, mortality rate, feed intake, egg weight and number of culled eggs. Data were analyzed by ANOVA followed by t-test. Main production parameters in production of table eggs were significantly different depending on the housing system. The best results were realized in cage system with lower housing density, and the worst results in hens housed in floor system on free range.

scholarly journals The effect of multiphase nutrition on production performances of broilers

2010 ◽  
Vol 26 (1-2) ◽  
pp. 83-90 ◽  
Author(s):  
N. Tolimir ◽  
L. Peric ◽  
N. Milosevic ◽  
V. Bogdanovic
Keyword(s):  
Protein Content ◽  
Average Daily Gain ◽  
Control Group ◽  
Food Utilization ◽  
Trial Group ◽  
Trial Period ◽  
Feed Conversion ◽  
Production Parameters ◽  
Main Production ◽  
Daily Gain

Multiphase broiler nutrition is important from the standpoint of nutrition optimization, economical efficiency of production and protection of the environment. Objective of research is to investigate the effect of multiphase nutiriton, i.e. different mixtures used in broiler nutrition, whse protein content has been reduced in several phases during first fattening stage, on production performances of broilers. Investigation was carried out on 608 individually tagged male chickens, Ross 308 strain, divided into 4 groups: T1 (control group) - nutrition with mixture containing 23% of protein from 1-21st day; T2 - nutrition with mixture containing 23% of protein from 1st to 7th day, and from 7th to 21st day diet containing 21.5% protein; T3 - nutrition with mixture containing 23% of protein from 1st to 14th day and from 14th to 21st day diet containing 21.5% protein and T4 - nutrition with mixture containing 23% of protein from 1st to 3rd day, from 4-6th day with 22.55% protein, 7-9th day with 22.10% protein, 10-12th day diet with 21.65% protein, 13 - 15th day with 21.20% protein, 16-18th day with 20.75% protein and 19th-21st day diet with 20.30% protein. Main production parameters were registered during the trial period (from 1 to 21st day).Through processing of obtained data it ewas established that chickens of the T4 group (2092.42g), had realized statistically significantly higher body mass compared to T2 (2025.00g) and T3 (2020.07g), but not in relation to control group T1 (2055.16g), during trial period of 42 days. Also, it can be concluded that in regard to daily gain in period up to 21st day, no statistically significant differences between trial groups were established, however, for the entire trial period, average daily gain of chickens in T4 group (48.84g) was statistically considerably higher compared to T2 (47.24g) and T3 (47.13g), whereas in relation to T1 no differences were established T1 (47.99). Feed conversion differed between groups, precisely in favor of the application of multiphase broiler nutrition, i.e. feed conversion of the trial group T4 (1.870) was the best compared to T1 (1.918), T2 (2.005) and T3 (1.970). Based on obtained results it can be concluded that multiphase nutrition had effect on production performances, primarily level of food utilization.

scholarly journals Comparative Finite Element Method Analysis of Spiroid Worm Gear Drives Having Arched Profile and Having Linear Profile in Axial Section

2014 ◽  
Vol 11 (1) ◽  
pp. 25-29
Author(s):  
Sándor Bodzás ◽  
Illés Dudás
Keyword(s):  
Finite Element Method ◽  
Worm Gear ◽  
Finite Element Method Analysis ◽  
Axial Section ◽  
Linear Profile ◽  
Gear Drive ◽  
Gear Drives ◽  
Conical Worm ◽  
Spiroid Worm ◽  
Method Analysis

Abstract With the knowledge of the advantageous characteristics of the cylindrical worm gear drives having arched profile in axial section and the conical worm gear drives having linear profile in axial section, a new geometric type conical worm gear drive has been designed and then manufactured, that is the conical worm gear drive having arched profile in axial section. Beside similar charging and marginal conditions in case of the same geometric spiroid worm gear drives having arched profile and having linear profile in axial section we have done comparative finite element method analysis for awarding of the strains, deformations and stresses of this gear drives.

The Production Geometric Analysis of the New Type, Spiroid Worm Gear Drive Having Arched Profile

2013 ◽  
Author(s):  
Illés Dudás ◽  
Sándor Bodzás
Keyword(s):  
Geometric Analysis ◽  
Research Field ◽  
Worm Gear ◽  
Axial Section ◽  
Gear Drive ◽  
New Type ◽  
Application Fields ◽  
The University ◽  
Conical Worm ◽  
Spiroid Worm

In the last few decades in Hungary, the Budapest University of Technology and Economics and the University of Miskolc have been intensively focusing on the research field of worm gear drives [2, 5]. Our results at the University of Miskolc have also been published in a book published in the USA as well [2]. A new geometric worm gear drive has been developed, that is the conical worm gear drive having arched profiled in axial section [3]. The aim of our publication is to present the advantages, the geometric questions and the possible application fields of this new type worm gear drive.

Production Technology of Grinding Wheel Made of Fibers Using Twin Nozzle PELID

2019 ◽  
Vol 2019.27 (0) ◽  
pp. 705
Author(s):  
Satoshi KASHIMURA ◽  
Nobuhide ITHO ◽  
Taiki YAMAMOTO ◽  
Ryosuke IINUMA ◽  
Shinjiro UMEZU ◽  
...  
Keyword(s):  
Production Technology ◽  
Grinding Wheel

Comparative finite element method analysis of two spiroid worm gear drives having different profiles

2015 ◽  
Vol 6 (1) ◽  
pp. 31-39
Author(s):  
S. Bodzás ◽  
I. Dudás
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Worm Gear ◽  
Finite Element Method Analysis ◽  
Axial Section ◽  
Gear Drive ◽  
Gear Drives ◽  
Conical Worm ◽  
Spiroid Worm ◽  
Method Analysis

With the knowledge of the advantageous characteristics of the cylindrical worm gear drives having arched profile in axial section and the conical worm gear drives having linear profile in axial section, a new geometric type conical worm gear drive has been designed and then manufactured, that is the conical worm gear drive having arched profile in axial section. Under same load and boundary conditions in case of the same geometric spiroid worm gear drives having arched profile and having linear profile in axial section we have done comparative finite element method analysis for evaluating the strains, deformations and stresses of this gear drives.

scholarly journals The Combined Effects of Vegetative Stage Corms, Ultra Low Oxygen Cooling Storage and Incubation Time on Crocus sativus L.

Agronomy ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 1775
Author(s):  
M. Valle García-Rodríguez ◽  
Natalia Moratalla-López ◽  
Claudia Carrión ◽  
Horacio López-Córcoles ◽  
Gonzalo L. Alonso
Keyword(s):  
Predictive Model ◽  
Leaf Senescence ◽  
Incubation Time ◽  
Crocus Sativus ◽  
Combined Effects ◽  
Low Oxygen ◽  
Production Parameters ◽  
Flowering Season ◽  
Main Production ◽  
Crocus Sativus L

In order to extend the flowering season of Crocus sativus L. more time than the methods developed to date and to study their limits, a multivariable trial was carried out with the following factors: vegetative stages of the corm; ultra low oxygen (ULO) cooling storage and incubation time. The main production parameters and the quality saffron were studied. The usage of corms lifted 40 days earlier leaf senescence (V3–40 d) was not technically viable. No benefits were obtained from corms lifted shortly after leaf senescence (V3). Most of the parameters decreased with increasing of storage in ULO chambers for the vegetative stages studied. The corms lifted 20 days earlier leaf senescence (V3–20 d), stored from 0 to 120 days in ULO chambers and incubated 30 and 60 days provided greater number of flowers and more weight of saffron than corms non-incubated. A predictive model was obtained which allows to know the saffron yield in corms lifted in the stage V3–20 d, stored from 0 to 180 days in ULO chambers followed by incubation from 30 to 120 days. The combination of the three factors studied allowed to extend the Crocus sativus L. flowering from October to early February with an acceptable saffron yield and a quality similar than saffron grown traditionally.

scholarly journals Effects of dietary phytogenic product on the performance and immune response of pigs

2013 ◽  
Vol 57 (3) ◽  
pp. 381-386
Author(s):  
Małgorzata Pomorska-Mól ◽  
Krzysztof Kwit ◽  
Ewelina Czyżewska ◽  
Iwona Markowska-Daniel
Keyword(s):  
Immune Response ◽  
Field Condition ◽  
White Blood Cells ◽  
Swine Influenza ◽  
Humoral Response ◽  
Ocimum Sanctum ◽  
Treatment Groups ◽  
Production Parameters ◽  
Main Production ◽  
Pig Performance

Abstract The aim of the study was to determine the effects of supplementation of sows’ and weaners’ diet with Stresomix, preparation containing extracts from Magnifera indica, Withania somnifera, Phyllanthus emblica, and Ocimum sanctum, on pig performance and immunity under field condition. The hypothesis was that anti-inflammatory, antistress, and immunomodulatory properties of the herbs would enhance production parameters and immune response, according to the manufacturer's claim. The study was performed on 16 sows and 160 piglets. The following parameters were recorded: concentration and proportion of white blood cells and their populations, concentration of serum immunoglobulins, specific humoral postvaccinal response after vaccination against swine influenza and swine erysipelas, and main production parameters. No significant differences among treatment groups were found with regard to concentrations of leukocyte subpopulations and immunoglobulins, as well as all investigated production parameters (P>0.05). In conclusion, the results of the study did not confirm that the investigated polyherbal product, administered at dose recommended by manufacturer, is able to significantly improve the performance and postvaccinal humoral response in clinically healthy pigs under field condition.

scholarly journals THE BUILT ENVIRONMENT OF FARM WINERIES: AN ANALYSIS METHODOLOGY FOR DEFINING META-DESIGN REQUIREMENTS

2012 ◽  
Vol 42 (3) ◽  
pp. 25
Author(s):  
Patrizia Tassinari ◽  
Sergio Galassi ◽  
Stefano Benni ◽  
Daniele Torreggiani
Keyword(s):  
Building Design ◽  
Landscape Design ◽  
Functional Requirements ◽  
Production Parameters ◽  
Farm Production ◽  
Analysis Methodology ◽  
Emilia Romagna Region ◽  
Main Production ◽  
Design Requirements ◽  
Definition Of

The study represents the first step of a broader research aimed at outlining specific building and landscape design criteria for small to medium-sized farm wineries. With reference to a study area of the Emilia- Romagna region (Italy) representative of the regional wine-growing and producing sector, the specific aims of the study are the identification and quantification of the main production parameters, and the formulation of a preliminary framework of dimensional and functional requirements of wineries. We acquired, georeferenced, and analysed the available databases about wine farm production and sizes. We analysed a representative sample of such farms and the national and local codes about building design for that sector. The study has led to the definition of the main characters of the production process and a layout of the main parameters influencing the design process.

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