Ali Aybek

Prof. Dr. Ali Aybek

orcid

Research Focus & Metrics

Academic Career Length

20Years (2007-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 March 2010 in Applied Ergonomics
Verified
Journal Article
Closed access
AAAli Aybek
Ali Aybek
HKH. Atil Kamer
H. Atil Kamer
SASelçuk Arslan
Selçuk Arslan

30 April 2021 in Kahramanmaraş Sütçü İmam Üniversitesi Tarım ve Doğa Dergisi
Verified
Journal Article
Open access
AAAli Aybek
Ali Aybek
HKHamza Kuzu
Hamza Kuzu
HKHayrettin Karadol
Hayrettin Karadol
Bu çalışmada, Türkiye İstatistik Kurumu (TUİK) verilerine göre Türkiye’nin ve on tarım bölgesinin; son 10 yıla (2010-2019) ait tarımsal mekanizasyon düzeyi gösterge değerleri (kW ha-1, traktör sayısı 1000 ha-1, ha traktör-1, makina traktör-1) belirlenmiş ve gelecek yıllar (2020-2030) için kW ha-1 değeri trend analizi yardımıyla tahmin edilmiş ve değerlendirilmiştir. Türkiye’nin on tarım bölgesi ve Türkiye genelinde yıllara göre mekanizasyon düzeyi göstergelerinden kW ha-1 ve traktör 1000 ha-1 değerleri artmış, makina traktör-1 değeri ise azalmıştır. kW ha-1 değeri; en yüksek Ege Bölgesinde (2.86-3.72 kW ha-1), en düşük Doğu Karadeniz Bölgesinde (0.35-0.44 kW ha-1) oluşmuş, Türkiye genelinde son on yılda ortalama %3.22 artış göstermiş ve 1.67-2.22 kW ha-1 olarak gerçekleşmiştir. Gelecek yıllar (2020-2030) için kW ha-1 değeri; Türkiye ve tüm tarım bölgelinde yıllara göre artış göstereceği tahmin edilmiştir. Gelecek yıllar (2020-2030) için ortalama artış değerleri %0.89-3.18 arasında gerçekleşeceği öngörülmektedir. kW ha-1 değeri; Türkiye geneli için 2020 yılında 2.27, 2025 yılında 2.55 ve 2030 yılında 2.84 olması tahmin edilmektedir. Makina traktör-1 oranındaki azalma; on yıllık süreçte makina sayılarındaki artış oranlarının traktör sayılarındaki artış oranlarından daha az olmasından kaynaklanmaktadır.

25 January 2023 in Agriculture
Verified
Journal Article
Open access
PDF file
MBMehmet Emin Bilgili
Mehmet Emin Bilgili
YVYasemin VURARAK
Yasemin VURARAK
AAAli Aybek
Ali Aybek
One of the most common problems in maize production is the management of plant residues. Small agricultural enterprises, which cannot allocate capital for acquiring stalk cutting machines for their operation, face many technical problems in preparing the sowing bed for the products that will be planted after maize. Stalks of maize that cannot be shredded adequately and on time cause machinery to clog, prevent the preparation of a proper sowing bed, increase fuel consumption and increase costs. The aim of this study is to compare the no-till sowing machine prototype and stalk cutting machine prototype with the classical stalk cutter in terms of some management values. The prototype stubble cutting machine used in the study was manufactured with a cylindrical structure and equipped with 24 cutting blades 1 cm thick and 8 cm wide. İn addition, the prototype stubble cutting machine used in the study was manufactured with a cylindrical structure and equipped with 24 cutting blades 1 cm thick and 8 cm wide. İn addition, the no-till seeder prototype was manufactured as a bucket-type seed hopper equipped with granular fertilizer capable of sowing four rows. It was concluded that the stubble cutting machine prototypes resulted in less fuel consumption with lower penetration resistance when compared with the classical stalk shredder.

31 October 2021 in Kahramanmaraş Sütçü İmam Üniversitesi Tarım ve Doğa Dergisi
Verified
Journal Article
Open access
IGİsMail Gi̇zLenci̇
İsMail Gi̇zLenci̇
AAAli Aybek
Ali Aybek
Çalışmada Doğu Akdeniz Bölgesi tarım işletmelerinde oluşan iş kazaları ve etkili faktörler belirlenmiş ve değerlendirilmiştir. Bu amaçla bölgeyi oluşturan illerin tarımsal özelliklerini yansıtacak her ilden; merkez ve üç ilçeden toplam 166 işletme sayısı oransal örnekleme yöntemiyle seçilmiştir. Veriler anket aracılığı ile işletme sahipleri ya da sorumluları ile yüz yüze görüşme yoluyla gerçekleştirilmiştir. Bölgedeki tarım işletmelerinin %21.1’inde iş kazaları gerçekleşmiştir. Kazalara sırası ile tarım makinaları, tarım traktörleri, elektrik çarpması, hayvanlar ve diğer araçlar neden olmuştur. Kazalar; şarampole uçma (%42.9), sıkışma-ezilme (%31.4), vücudu bir parçaya kaptırma (%14.3), vücuda herhangi bir parçanın çarpması (%5.7), traktörden düşme (%2.9) ve traktörün çarpması/başka araçla çarpışma (%2.9) şeklinde gerçekleşmiştir. Tarım makinalarından kaynaklı iş kazaları en fazla pulluk (%17.1) ve ekim makinası (%17.1) ile olmuştur. Kazazedelerin %69.6’sının hafif yaralandığı, %10.9’unun ağır yaralandığı ve %4.3’ünün ise kısmen fiziksel engelli olarak görülmüştür. Bölgedeki işletmelerde kazaya karışan traktörlerin %38.2’si 0-5 yaş, %41.2’si 6-10 yaş, %2.9’u 11-15 yaş, %8.8’i 16-20 yaş ve %8.7’si ise 21+ yaş grubundadır. İşletmecilerin eğitim düzeyleri ile iş kazası oluşma durumu arasında istatistiksel olarak önemli bir ilişki bulunmaktadır (X2=8.25; P=0.041). Traktör yıllık bakım yapılma durumu ile iş kazası oluşma durumu arasında pozitif bir bağıntı bulunmaktadır (X2=5.49; P=0.019). Traktör yaşı ile iş kazası oluşma durumu arasında istatistiksel olarak önemli bir ilişki bulunmaktadır (X2=3.98; P=0.046).

23 February 2024 in Agriculture
Verified
Journal Article
Open access
PDF file
HKHayrettin Karadol
Hayrettin Karadol
AAAli Aybek
Ali Aybek
Mustafa UcgulMustafa Ucgul
Mustafa Ucgul
HKHamza Kuzu
Hamza Kuzu
MGMahit Gunes
Mahit Gunes
In modern agriculture, which is characterised by dynamic field environments, challenges are faced in maintaining consistent application rates due to varying tractor speeds, field conditions, and certain calibration errors. Conventional control systems, which rely on slower valves, have difficulty adapting to these dynamic field conditions. By contrast, the integration of fast-acting proportional valves improves the precision and flexibility of flow rate adjustment during spraying applications. This research focused on evaluating the accuracy of spraying applications under different tractor speed conditions through field experiments and data analysis. This study involves a field sprayer with boom wings divided into right and left sections, where the flow rate of the liquid to each section is controlled by proportional valves with a 3 s full opening and closing time, dependent on speed information. Using a closed-loop control system consisting of a flow meter, proportional valve, and PLC, the valves are controlled by the PLC’s internal PID blocks. Observations reveal that as the tractor speed increases to a certain level, the system effectively adjusts the application rate close to the target value and maintains control against the changing ground speed during all field tests. The study included five different application tests, with target application rates of 100, 150, 200, 250, and 300 L ha−1, with each repeated three times, resulting in a total of 15 field tests at different ground speeds. During these tests, the data were meticulously recorded every second, covering the tractor speed, flow rate, and pressure values for both right and left boom sections, along with regulator pressure, proportional valve opening rates, and application rates. The durations for each application rate were documented alongside instances within specified periods where error boundaries of ±10% were exceeded. During the total test duration of 9734 s, the actual application rate value exceeded error boundaries during only 209 s. Within the application durations, the speed variation intervals ranged from 5.10 to 10.23 km h−1, 4.64 to 9.91 km h−1, 3.68 to 7.89 km h−1, 4.80 to 8.21 km h−1, and from 4.90 to 8.69 km h−1. The absolute percentage mean application errors were recorded as 2.81%, 2.68%, 2.28%, 2.14%, and 2.51% for respective application rates. Furthermore, statistically significant correlations (p < 0.01) were identified among the variables (speed, valve opening rate, flow rate, pressure) in both the right and left boom sections across all application rates.

1 January 2011 in TURKISH JOURNAL OF AGRICULTURE AND FORESTRY
Verified
Journal Article
Closed access
PDF file
AAAli Aybek
Ali Aybek
EBEmrullah Başer
Emrullah Başer
SASelçuk Arslan
Selçuk Arslan
MÜMustafa Üçgül
Mustafa Üçgül
Tractor performance tests conducted under laboratory test conditions are important because these tests determine the performance characteristics used to compare strengths and weaknesses of tractors. The objective of this study was to determine the effect of diesel fuel (B0) and 3 different biodiesel blends made of canola oil (B10, B20, B30) on tractor power take-off (PTO) performance characteristics. Performance characteristics studied were PTO power, engine torque, engine fuel consumption, and specific fuel consumption on an agricultural tractor (Massey Ferguson 3056 2WD) at the test laboratory of the Directorate of Agricultural Machinery Test Center (TAMTEST), Ministry of Agriculture and Rural Affairs, Ankara, Turkey. The maximum PTO power (32.35 ± 0.06 kW), the minimum specific fuel consumption (288.72 ± 0.11 g Kw^{-1} h^{-1}), and the minimum fuel consumption (11.08 ± 0.13 L h^{-1}) were achieved by using B20 at an engine speed of 2100 min^{-1}. The nominal engine speed for petrodiesel was 2200 min^{-1}, whereas the greatest engine power was accomplished at 2100 min^{-1} for all biodiesel blends. Even though 2%-4% reduction was obtained in fuel consumption by using biodiesel blends at 2100 min^{-1}, the mean fuel consumption was statistically insignificant (P > 0.05), whereas average fuel consumption was higher with petrodiesel at 2200 min^{-1} (P < 0.05). It was concluded that B20 (20% biodiesel + 80% petrodiesel) could be a more efficient alternative to petrodiesel fuel.