Search results: 9,830 results (approx.)

1. Estimation of minimum ventilation requirement of dairy cattle barns for different outdoor temperature and its affects on indoor temperature: Bursa case.

In the study, 10 different dairy cattle barns with natural ventilation system were investigated in terms of structural aspects. VENTGRAPH software package was used to estimate minimum ventilation requirements for three different outdoor design temperatures (-3, 0 and 1.7°C). Variation in indoor...

Author(s) : Yaslİoglu, E.; Sİmsek, E.; Kİlİc, İ.

Publisher : ANSInet, Asian Network for Scientific Information, Faisalabad, Pakistan

Journal article : Pakistan Journal of Biological Sciences 2007 Vol.10 No.8 pp.1264-1269 ref.16

2. Lighting for dairy farms and the poultry industry.

Publisher : American Society of Agricultural Engineers (ASAE), St Joseph, USA

Miscellaneous : ASAE standards 1999. Standards, engineering practices, data. 1999 No.Ed.46 pp.648-652 ref.2

3. Specifications for lightning protection.

Publisher : American Society of Agricultural Engineers (ASAE), St Joseph, USA

Miscellaneous : ASAE standards 1999. Standards, engineering practices, data. 1999 No.Ed.46 pp.658-662 ref.3

4. Digital display equipment for long-distance monitoring and controlling temperature of greenhouse.

A temperature sensor, the AD590, is presented, consisting of an amplifier circuit and digital temperature display. A digital voltmeter is used for the long distance (up to 1000 m) monitoring and temperature control of greenhouses. The error of the sensor is <1°C in the rang 0-50°C.

Author(s) : Zhang QiBo (et al.)

Journal article : Journal of Jilin Agricultural University 1999 Vol.21 No.1 pp.80-82 ref.3

5. Outside climate houses for pigs - how should they be in southern Germany.

Thermally insulated housing systems with fully slatted floors are standard in pig production, with more than 80% of fattening pigs kept in this way. However, outside climate houses claim to be lower in investment and energy requirements, offering the animals a healthy and appropriate environment...

Foreign Title :Aussenklimaställe für Schweine. Wie sie in Süddeutschland aussehen sollen.

Author(s) : Haidn, B.; Hornauer, N.

Journal article : Landtechnik 2000 Vol.55 No.1 pp.50-51 ref.10

6. Thermal heating of controlled environment greenhouse: a transient analysis.

This work aimed to maintain the plant and room air temperature of a controlled environment greenhouse by using a thermal storage north wall and integrating a ground air collector. An analytical expression for the plant and room air temperature, based on energy balances for each component, were...

Author(s) : Singh, R. D.; Tiwari, G. N.

Journal article : Energy Conversion and Management 2000 Vol.41 No.5 pp.505-522 ref.19

7. Ammonia extraction by ventilation of loose-housing systems for laying hens.

Keeping laying hens in loose-housing systems instead of in cages generally means that more manure is stored in the buildings. This causes an increased release and concentration of ammonia derived from manure and straw bedding material. Removing as much as possible of the exhaust ventilation air...

Author(s) : Gustafsson, G.; Wachenfelt, E. von

Journal article : Journal of Agricultural Engineering Research 2000 Vol.75 No.1 pp.17-25 ref.20

8. Predicting the microclimate in a naturally ventilated plastic house in a mediterranean climate.

The microclimate of a naturally ventilated plastic house was simulated for 23 days using the Gembloux Greenhouse Dynamic Model (GGDM). Improved calculations of natural ventilation flux and stomatal resistance of vegetation were introduced, based on experimental equations from previous research. A...

Author(s) : Wang, S.; Boulard, T.

Journal article : Journal of Agricultural Engineering Research 2000 Vol.75 No.1 pp.27-38 ref.31

9. Effect of heating system position on vertical distribution of crop temperature and transpiration in greenhouse tomatoes.

The presence of independently controllable heating systems enables local crop heating to influence the crop development. The position of the heating system also influences energy consumption. A simulation model was developed to predict the effects of the heating system on the vertical distribution...

Author(s) : Kempkes, F. L. K.; Braak, N. J. van de; Bakker, J. C.

Journal article : Journal of Agricultural Engineering Research 2000 Vol.75 No.1 pp.57-64 ref.19

10. Condensation and radiation transmittance of greenhouse cladding materials, part 2: results for a complete condensation cycle.

The radiation transmittances of a standard glass plate and an ordinary polyethylene (PE) film were measured during a complete condensation cycle (dry phase; condensation without run-off; condensation with run-off evaporation phase). The measurements were performed in a specially developed...

Author(s) : Pollet, I. V.; Pieters, J. G.

Journal article : Journal of Agricultural Engineering Research 2000 Vol.75 No.1 pp.65-72 ref.21

11. Proceedings of the second international symposium on sensors in horticulture, Tune Landboskole, Greve, Denmark, 21-26 August, 1995.

This symposium covered: sensors for quality (4 papers on plants, 4 on vision and 2 on acoustics); sensors for speaking plant approach and climate (4 papers); sensors for water contents and substrates (4 papers); sensors for water status of plants (3 papers); and 9 poster presentations.

Conference proceedings : Acta Horticulturae 1998 No.No. 421 pp.287 pp.

12. Heat loss from heating pipes [in pig housing].

Foreign Title :Varmeafgivelse fra varmerør.

Author(s) : Strøm, J. S.; Morsing, S.; Pedersen, S.

Publisher : Danmarks JordbrugsForskning, Tjele, Denmark

Miscellaneous : Gron Viden, Husdyrbrug 1998 No.No. 5 pp.8 pp.

13. Aerodynamic design improves ventilation.

Research work on greenhouse design to provide the best ventilation for plants is discussed. The role of wind, solar radiation and shading, aerodynamic models and future work are covered.

Author(s) : Short, T. H.

Journal article : GrowerTalks 1998 Vol.62 No.4 pp.90..98

14. Heating, ventilating and cooling greenhouses.

Publisher : American Society of Agricultural Engineers (ASAE), St Joseph, USA

Journal article : ASAE standards 1998: standards engineering practices data 1998 No.No. 45 pp.660-667 ref.4

15. Guidelines for measuring and reporting environmental parameters for plant experiments in growth chambers.

Publisher : American Society of Agricultural Engineers (ASAE), St Joseph, USA

Journal article : ASAE standards 1998: standards engineering practices data 1998 No.No. 45 pp.668-672 ref.35

16. Design values for emergency ventilation and care of livestock and poultry.

Publisher : American Society of Agricultural Engineers (ASAE), St Joseph, USA

Journal article : ASAE standards 1998: standards engineering practices data 1998 No.No. 45 pp.608-610 ref.7

17. Plastic film. Use of plastic film over Lollo rossa in spring.

In Belgium, 2 cultivars (Sesam and Impuls) of Lollo rossa [red loose-leaf lettuce] were sown on 16 January 1998, planted out on 11 March, covered and harvested on 12 May. Data were collected on crop weight and foliage colour. Covers were used until 20 April and included non-woven polypropylene...

Foreign Title :Plastic. Plastic-toepassingen bij Lollo rossa in het voorjaar.

Author(s) : Benoit, F.; Ceustermans, N.

Journal article : Proeftuinnieuws 1999 Vol.9 No.1 pp.10

18. Shelf-life extension of American fresh ginseng by controlled atmosphere storage and modified atmosphere packaging.

American ginseng [Panax quinquefolius] roots (grown in Wisconsin, USA) were treated with an antimicrobial agent, and stored under various CA (2, 5 and 8% CO2) or MA conditions at 2°C in an attempt to extend shelf life. Changes in respiration rates during CA storage, gas composition in packages,...

Author(s) : Jeon, B. S.; Lee, C. Y.

Journal article : Journal of Food Science 1999 Vol.64 No.2 pp.328-331 ref.11

19. Low temperature and controlled atmosphere storage of fruit of longan (Dimocarpus longan Lour.).

Fruits of 2 longan cultivars, Shixia and Wuyuan (grown in Guangzhou, China), were stored at 1, 2.5 or 5°C for 30 days. Disease was controlled in both cultivars at 1°C, but chilling injury was observed on the skin of Wuyuan, and it increased rapidly after 20 days. Wuyuan appeared to be more chilling ...

Author(s) : Jiang YueMing

Journal article : Tropical Science 1999 Vol.39 No.2 pp.98-101 ref.12

20. Measurement of air exchange time in a mushroom tunnel.

The objective of this study was to determine the air exchange time in a standard mushroom tunnel as a function of the ventilation mixing flap position. In combination with an understanding of tunnel air exchange efficiency, knowledge of the relation between air exchange time and flap position...

Author(s) : Martin, D. P.; Ringwood, J. V.; Grant, J.

Journal article : Irish Journal of Agricultural and Food Research 1999 Vol.38 No.1 pp.113-123 ref.24

21. Observations on problems associated with microbial contamination of pelleted compound feeds in open and closed storage conditions.

An overview is given of the storage of pelleted compound feeds (PCF), with particular reference to the prevention of microbial contamination. The following are considered: general characteristics of PCF; moisture content and water activity; damage caused to PCF during handling and transport; growth ...

Foreign Title :Betrachtung der Problematik von mikrobiellen Kontaminationen bei offen und geschlossen gelagertem pelletierten Mischfutter.

Author(s) : Skriegan, E.; Oster, A.

Journal article : Mühle + Mischfuttertechnik 1999 Vol.135 No.26 pp.858-875 ref.7

22. Greenhouse structure and equipment for improving crop production in mild winter climates.

The basic requirements of greenhouses used to produce crops in mild winter environments are outlined with emphasis on shape, size and cladding. Additional equipment that is cost-effective in improving the greenhouse environment such as thermal screens, shade screens, and evaporative cooling or...

Author(s) : Baille, A.

Conference paper; Journal article : Acta Horticulturae 1999 No.No. 491 pp.37-47 ref.62

23. The effect of floraser glass on light, on economy of energy and on the production of tomatoes and cucumber.

The greenhouse environment and crop performance (tomato cultivars 198 F1 and 144 RN F1 and cucumber cv. Qamar F1) were compared in 10 × 12 m greenhouses clad with conventional glass and an infrared absorbing new glass designated floraser glass. The transmission of photosynthetically active...

Author(s) : Cevri, H.; Ozer, M.; Sert, E.; Deviren, A.; Durceylan, E.

Conference paper; Journal article : Acta Horticulturae 1999 No.No. 491 pp.61-66

24. An experimental model for leaf temperature of greenhouse-grown tomato.

Based on a greenhouse dynamic energy balance model, a new experimental model for predicting the global vegetation temperature is proposed. The sensitivity of the vegetation temperature to the relevant parameters were studied using a simulation model. Measurements showed that the interior air...

Author(s) : Wang, S.; Deltour, J.

Conference paper; Journal article : Acta Horticulturae 1999 No.No. 491 pp.101-106 ref.10

25. The effects of different coloured water tubes on pepper and eggplant for spring season in high plastic tunnels on the Mediterranean coast of Turkey.

Aubergines and sweet peppers were grown in 4 high plastic tunnels in the early spring of 1996 in Antalya, Turkey, to determine the effect of different coloured water tubes (control: clear PE tube, black PE tube, green PE tube and red PE tube) which were placed between double rows. The efficiency of ...

Author(s) : Karatas, H.; Cevri, H.

Conference paper; Journal article : Acta Horticulturae 1999 No.No. 491 pp.149-154 ref.3