Ozgur Cobanoglu | CERN - Academia.edu (original) (raw)

Papers by Ozgur Cobanoglu

U.S. Department of Energy Office of Scientific and Technical Information - OSTI OAI, Jul 6, 2010

Journal of Instrumentation, 2010

Alignment of the ALICE Inner Tracking System with cosmic-ray tracks ALICE collaboration ABSTRACT:... more Alignment of the ALICE Inner Tracking System with cosmic-ray tracks ALICE collaboration ABSTRACT: ALICE (A Large Ion Collider Experiment) is the LHC (Large Hadron Collider) experiment devoted to investigating the strongly interacting matter created in nucleus-nucleus collisions at the LHC energies. The ALICE ITS, Inner Tracking System, consists of six cylindrical layers of silicon detectors with three different technologies; in the outward direction: two layers of pixel detectors, two layers each of drift, and strip detectors. The number of parameters to be determined in the spatial alignment of the 2198 sensor modules of the ITS is about 13,000. The target alignment precision is well below 10 µm in some cases (pixels). The sources of alignment information include survey measurements, and the reconstructed tracks from cosmic rays and from protonproton collisions. The main track-based alignment method uses the Millepede global approach. An iterative local method was developed and used as well. We present the results obtained for the ITS alignment using about 10 5 charged tracks from cosmic rays that have been collected during summer 2008, with the ALICE solenoidal magnet switched off.

Journal of Physics G: Nuclear and Particle Physics, 2009

The European Physical Journal C, 2010

This publication is dedicated to the memory of our colleague Hans-Åke Gustafsson.

Institut National de Physique Nucléaire et de Physique des Particules.

WOS: 000335879000006In this study, green herb and drug herb yields of basil (Ocimum basilicum L.)... more WOS: 000335879000006In this study, green herb and drug herb yields of basil (Ocimum basilicum L.) grown in organic and conventional farming systems were examined. Primary plant nutrients, total essential oil contents (%), and essential oil components were investigated as well. In the conventional system, nutrient inputs included 15.15.15 and monopotassium phosphate (MKP) fertilizers, and in the organic system, nutrient inputs included bone meal + zeolite (BM+Z) and rock phosphate + zeolite (RP+Z). For conventionally grown basil, the highest green herb yield was 1027.5 kg/da, and the highest drug herb yield was 191.1 kg/da. Green herb and drug herb yields were 872.6 kg/da in the MKP plots under conventional farming and 196.3 kg/da in the bone meal + zeolite plots under organic farming. Analysis of primary plant nutrients showed that nitrogen and magnesium contents in the 15.15.15 fertilizer plots and phosphorus, potassium, and calcium contents in the MKP plots were higher. Rock phosp...

Fresenius Environmental Bulletin, 2014

WOS: 000349805700005Two different experiments were conducted with German chamomile grown accordin... more WOS: 000349805700005Two different experiments were conducted with German chamomile grown according to conventional and organic farming systems. Flower (drug) and shoot yields were determined, and their essential (Fe, Zn, Mn and Cu) and non-essential heavy metal (Pb, Ni, Co, Cr and Cd) contents were measured and the results were compared according to treatments: control-without treatment to fertilization, 15:15:15 + ammonium nitrate (AN) + potassium sulfate (KS), monopotassium sulfate (MKP) + AN + KS, control + farmyard manure (FYM) + sulphur (S), bone meal (BM) + zeolite (Z) + FYM + S, rock phosphate (RP) + Z + FYM + S. It can be concluded that the yield responses of chamomile in 15:15:15 treatment of the conventional and BM (bone meal) + Z (zeolite) treatment of the organic experimentation were significant. All of these findings showed that there is not a significant metal accumulation risk for chamomile cultivated either according to the conventional farming system or to the standards of organic farming because all of the studied essential and non-essential metals are generally low or very slightly over the acceptable limits.TUBITAKTurkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [110O733]The present study was carried out in the framework of the 110O733 project financed by the TUBITAK research program

This study reports on an investigation made at the Ege University experimental farm (Izmir, Turke... more This study reports on an investigation made at the Ege University experimental farm (Izmir, Turkey), with soil low in available potassium (K), on the effects of different rates of potassium (K 2 O) and nitrogen (N) fertilization on two different wheat varieties, one bread wheat (Galil) and the other a durum wheat (Ege 88). Measurements were made on yield, yield components, elemental composition, N use efficiency (NUE %) and the N derived from the N fertilizer (Ndff %). In general, grain and straw yields were higher for the bread than the durum wheat for corresponding N and K applications. However, the highest yield was found at the highest N and K rates applied to durum wheat. NUE % was also high in the highest rate of K application, at 1% level in the bread wheat and 5% in the durum wheat. The N derived from the N fertilizers increased as the N and K rates increased. It can be concluded that the N 1 level (150 kg ha –1 ) of the studied N doses can be accepted as the most economic d...

The aim of this study was to examine the yield, essential plant nutrients (N, P, K, Ca, Na, Fe, Z... more The aim of this study was to examine the yield, essential plant nutrients (N, P, K, Ca, Na, Fe, Zn, Mn, Cu and B), essential oil and oil components of peppermint (Mentha x piperita L.) which was grown under organic farming conditions. Different certified organic fertilizers or natural inputs were the treatments of the study and tested in the nutrition of peppermint. Their effects on different parameters were examined. Results showed that fresh and dry herb yields differ according to the treatments and were found higher in the parcels where bone meal and potassium feldspate were given. Impact of different inputs/fertilizers on the secondary plant nutrients indicated that the pepermints of the parcels that received bone meal and potassium feldspate or rockphosphate and zeolite were richer in this regard. The essential oil yield (%) and compositions of essential oils of peppermint were highly affected by the bone meal applications.

Journal of Plant Nutrition, 2015

ABSTRACT The objective of the present study was to examine the effect of potassium (K) fertilizat... more ABSTRACT The objective of the present study was to examine the effect of potassium (K) fertilization and soil texture on total yield (1st and 2nd cuttings) and yield components of sweet basil (Ocimum basilicum L.) A greenhouse pot experiment was conducted in a completely randomized statistical design. Basil growth was examined in two different textured soils under three different doses of K fertilization. Generally, for the basil grown under clay soil conditions, moderate amounts of K fertilization is proposed to be sufficient if higher linalool contents are wanted. However, if the growing conditions are sandy loam in texture, it is suggested that higher doses of K be used. Results also highlighted the contribution of second cut as an important cultural practice in the cultivation of an annual basil.

Tarım Bilimleri Dergisi, 2014

In Turkey, the majority of medicinal plants at the selling points are wildly harvested. Therefore... more In Turkey, the majority of medicinal plants at the selling points are wildly harvested. Therefore, no control exists during their growth and development. The public awareness on effects of environmental pollution in this regard especially with respect to heavy metals in the herbs is increasing. With this objective, medicinal and aromatic plants were collected from herbalists in different, densely populated districts of Izmir Municipality. The concentrations of some essential plant nutrient elements (N, P, K, Ca, Mg, Na, Fe, Mn, Cu, Zn, B, and Mo) and toxic heavy metals (Co, Cd, Cr, Ni, and Pb) and Al were measured. Results showed that herbs are rich in the investigated mineral elements; however, some of the heavy metals are found to be at concentrations above the reported critical levels.

Physics Letters B, 2010

The inclusive charged particle transverse momentum distribution is measured in proton-proton coll... more The inclusive charged particle transverse momentum distribution is measured in proton-proton collisions at √ s = 900 GeV at the LHC using the ALICE detector. The measurement is performed in the central pseudorapidity region (|η| < 0.8) over the transverse momentum range 0.15 < p T < 10 GeV/c. The correlation between transverse momentum and particle multiplicity is also studied. Results are presented for inelastic (INEL) and non-single-diffractive (NSD) events. The average transverse momentum for |η| < 0.8 is p T INEL = 0.483 ± 0.001 (stat.) ± 0.007 (syst.) GeV/c and p T NSD = 0.489 ± 0.001 (stat.) ± 0.007 (syst.) GeV/c, respectively. The data exhibit a slightly larger p T than measurements in wider pseudorapidity intervals. The results are compared to simulations with the Monte Carlo event generators PYTHIA and PHOJET.

Physical Review Letters, 2010

An energy-efficient process, enabled via introduction of a new compact apparatus with low running... more An energy-efficient process, enabled via introduction of a new compact apparatus with low runningcost into the standard continuous textile dyeing process for production of deeply shaded yarns and fabrics of different colors is presented. High quality deep-shade effect is achieved by improved reduction efficiency of the used dye which is in turn proportional to the dye concentration in feed. However increased dye concentration in feed leads to severe precipitation problems making it practically impossible to transport the chemicals in order to run a continuous dyeing system. Therefore in the new process addressing this problem, chemical composition is introduced to the apparatus, namely the moderate-concentration precipitation-free pre-reducer (MCPR), which reduces the vat dye while transferring the chemicals from the individual sources to the point where they join the overall circulation, avoiding the aforementioned issues. The dye concentration within the MCPR is lower than that of...

The GigaBit Transceiver (GBT) architecture and transmission protocol has been proposed for data t... more The GigaBit Transceiver (GBT) architecture and transmission protocol has been proposed for data transmission in the physics experiments of the future upgrade of the LHC accelerator, the SLHC. Due to the high beam luminosity planned for the SLHC, the experiments will require high data rate links and electronic components capable of sustaining high radiation doses. The GBT ASICs address this issue implementing a radiation-hard bi-directional 4.8 Gb/s optical fibre link between the counting room and the experiments. The paper describes in detail the GBT-SERDES architecture and presents an overview of the various components that constitute the GBT chipset.

2007 Ph.D Research in Microelectronics and Electronics Conference, 2007

U.S. Department of Energy Office of Scientific and Technical Information - OSTI OAI, Jul 6, 2010

Journal of Instrumentation, 2010

Alignment of the ALICE Inner Tracking System with cosmic-ray tracks ALICE collaboration ABSTRACT:... more Alignment of the ALICE Inner Tracking System with cosmic-ray tracks ALICE collaboration ABSTRACT: ALICE (A Large Ion Collider Experiment) is the LHC (Large Hadron Collider) experiment devoted to investigating the strongly interacting matter created in nucleus-nucleus collisions at the LHC energies. The ALICE ITS, Inner Tracking System, consists of six cylindrical layers of silicon detectors with three different technologies; in the outward direction: two layers of pixel detectors, two layers each of drift, and strip detectors. The number of parameters to be determined in the spatial alignment of the 2198 sensor modules of the ITS is about 13,000. The target alignment precision is well below 10 µm in some cases (pixels). The sources of alignment information include survey measurements, and the reconstructed tracks from cosmic rays and from protonproton collisions. The main track-based alignment method uses the Millepede global approach. An iterative local method was developed and used as well. We present the results obtained for the ITS alignment using about 10 5 charged tracks from cosmic rays that have been collected during summer 2008, with the ALICE solenoidal magnet switched off.

Journal of Physics G: Nuclear and Particle Physics, 2009

The European Physical Journal C, 2010

This publication is dedicated to the memory of our colleague Hans-Åke Gustafsson.

Institut National de Physique Nucléaire et de Physique des Particules.

WOS: 000335879000006In this study, green herb and drug herb yields of basil (Ocimum basilicum L.)... more WOS: 000335879000006In this study, green herb and drug herb yields of basil (Ocimum basilicum L.) grown in organic and conventional farming systems were examined. Primary plant nutrients, total essential oil contents (%), and essential oil components were investigated as well. In the conventional system, nutrient inputs included 15.15.15 and monopotassium phosphate (MKP) fertilizers, and in the organic system, nutrient inputs included bone meal + zeolite (BM+Z) and rock phosphate + zeolite (RP+Z). For conventionally grown basil, the highest green herb yield was 1027.5 kg/da, and the highest drug herb yield was 191.1 kg/da. Green herb and drug herb yields were 872.6 kg/da in the MKP plots under conventional farming and 196.3 kg/da in the bone meal + zeolite plots under organic farming. Analysis of primary plant nutrients showed that nitrogen and magnesium contents in the 15.15.15 fertilizer plots and phosphorus, potassium, and calcium contents in the MKP plots were higher. Rock phosp...

Fresenius Environmental Bulletin, 2014

WOS: 000349805700005Two different experiments were conducted with German chamomile grown accordin... more WOS: 000349805700005Two different experiments were conducted with German chamomile grown according to conventional and organic farming systems. Flower (drug) and shoot yields were determined, and their essential (Fe, Zn, Mn and Cu) and non-essential heavy metal (Pb, Ni, Co, Cr and Cd) contents were measured and the results were compared according to treatments: control-without treatment to fertilization, 15:15:15 + ammonium nitrate (AN) + potassium sulfate (KS), monopotassium sulfate (MKP) + AN + KS, control + farmyard manure (FYM) + sulphur (S), bone meal (BM) + zeolite (Z) + FYM + S, rock phosphate (RP) + Z + FYM + S. It can be concluded that the yield responses of chamomile in 15:15:15 treatment of the conventional and BM (bone meal) + Z (zeolite) treatment of the organic experimentation were significant. All of these findings showed that there is not a significant metal accumulation risk for chamomile cultivated either according to the conventional farming system or to the standards of organic farming because all of the studied essential and non-essential metals are generally low or very slightly over the acceptable limits.TUBITAKTurkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [110O733]The present study was carried out in the framework of the 110O733 project financed by the TUBITAK research program

This study reports on an investigation made at the Ege University experimental farm (Izmir, Turke... more This study reports on an investigation made at the Ege University experimental farm (Izmir, Turkey), with soil low in available potassium (K), on the effects of different rates of potassium (K 2 O) and nitrogen (N) fertilization on two different wheat varieties, one bread wheat (Galil) and the other a durum wheat (Ege 88). Measurements were made on yield, yield components, elemental composition, N use efficiency (NUE %) and the N derived from the N fertilizer (Ndff %). In general, grain and straw yields were higher for the bread than the durum wheat for corresponding N and K applications. However, the highest yield was found at the highest N and K rates applied to durum wheat. NUE % was also high in the highest rate of K application, at 1% level in the bread wheat and 5% in the durum wheat. The N derived from the N fertilizers increased as the N and K rates increased. It can be concluded that the N 1 level (150 kg ha –1 ) of the studied N doses can be accepted as the most economic d...

The aim of this study was to examine the yield, essential plant nutrients (N, P, K, Ca, Na, Fe, Z... more The aim of this study was to examine the yield, essential plant nutrients (N, P, K, Ca, Na, Fe, Zn, Mn, Cu and B), essential oil and oil components of peppermint (Mentha x piperita L.) which was grown under organic farming conditions. Different certified organic fertilizers or natural inputs were the treatments of the study and tested in the nutrition of peppermint. Their effects on different parameters were examined. Results showed that fresh and dry herb yields differ according to the treatments and were found higher in the parcels where bone meal and potassium feldspate were given. Impact of different inputs/fertilizers on the secondary plant nutrients indicated that the pepermints of the parcels that received bone meal and potassium feldspate or rockphosphate and zeolite were richer in this regard. The essential oil yield (%) and compositions of essential oils of peppermint were highly affected by the bone meal applications.

Journal of Plant Nutrition, 2015

ABSTRACT The objective of the present study was to examine the effect of potassium (K) fertilizat... more ABSTRACT The objective of the present study was to examine the effect of potassium (K) fertilization and soil texture on total yield (1st and 2nd cuttings) and yield components of sweet basil (Ocimum basilicum L.) A greenhouse pot experiment was conducted in a completely randomized statistical design. Basil growth was examined in two different textured soils under three different doses of K fertilization. Generally, for the basil grown under clay soil conditions, moderate amounts of K fertilization is proposed to be sufficient if higher linalool contents are wanted. However, if the growing conditions are sandy loam in texture, it is suggested that higher doses of K be used. Results also highlighted the contribution of second cut as an important cultural practice in the cultivation of an annual basil.

Tarım Bilimleri Dergisi, 2014

In Turkey, the majority of medicinal plants at the selling points are wildly harvested. Therefore... more In Turkey, the majority of medicinal plants at the selling points are wildly harvested. Therefore, no control exists during their growth and development. The public awareness on effects of environmental pollution in this regard especially with respect to heavy metals in the herbs is increasing. With this objective, medicinal and aromatic plants were collected from herbalists in different, densely populated districts of Izmir Municipality. The concentrations of some essential plant nutrient elements (N, P, K, Ca, Mg, Na, Fe, Mn, Cu, Zn, B, and Mo) and toxic heavy metals (Co, Cd, Cr, Ni, and Pb) and Al were measured. Results showed that herbs are rich in the investigated mineral elements; however, some of the heavy metals are found to be at concentrations above the reported critical levels.

Physics Letters B, 2010

The inclusive charged particle transverse momentum distribution is measured in proton-proton coll... more The inclusive charged particle transverse momentum distribution is measured in proton-proton collisions at √ s = 900 GeV at the LHC using the ALICE detector. The measurement is performed in the central pseudorapidity region (|η| < 0.8) over the transverse momentum range 0.15 < p T < 10 GeV/c. The correlation between transverse momentum and particle multiplicity is also studied. Results are presented for inelastic (INEL) and non-single-diffractive (NSD) events. The average transverse momentum for |η| < 0.8 is p T INEL = 0.483 ± 0.001 (stat.) ± 0.007 (syst.) GeV/c and p T NSD = 0.489 ± 0.001 (stat.) ± 0.007 (syst.) GeV/c, respectively. The data exhibit a slightly larger p T than measurements in wider pseudorapidity intervals. The results are compared to simulations with the Monte Carlo event generators PYTHIA and PHOJET.

Physical Review Letters, 2010

An energy-efficient process, enabled via introduction of a new compact apparatus with low running... more An energy-efficient process, enabled via introduction of a new compact apparatus with low runningcost into the standard continuous textile dyeing process for production of deeply shaded yarns and fabrics of different colors is presented. High quality deep-shade effect is achieved by improved reduction efficiency of the used dye which is in turn proportional to the dye concentration in feed. However increased dye concentration in feed leads to severe precipitation problems making it practically impossible to transport the chemicals in order to run a continuous dyeing system. Therefore in the new process addressing this problem, chemical composition is introduced to the apparatus, namely the moderate-concentration precipitation-free pre-reducer (MCPR), which reduces the vat dye while transferring the chemicals from the individual sources to the point where they join the overall circulation, avoiding the aforementioned issues. The dye concentration within the MCPR is lower than that of...

The GigaBit Transceiver (GBT) architecture and transmission protocol has been proposed for data t... more The GigaBit Transceiver (GBT) architecture and transmission protocol has been proposed for data transmission in the physics experiments of the future upgrade of the LHC accelerator, the SLHC. Due to the high beam luminosity planned for the SLHC, the experiments will require high data rate links and electronic components capable of sustaining high radiation doses. The GBT ASICs address this issue implementing a radiation-hard bi-directional 4.8 Gb/s optical fibre link between the counting room and the experiments. The paper describes in detail the GBT-SERDES architecture and presents an overview of the various components that constitute the GBT chipset.

2007 Ph.D Research in Microelectronics and Electronics Conference, 2007

this school

The Big (but Brief) Picture Briefly front-end front-end -FE Briefly read-out read-out -RO Briefly... more The Big (but Brief) Picture Briefly front-end front-end -FE Briefly read-out read-out -RO Briefly serializer serializer -SER Briefly phase-lock loop phase-lock loop -PLL

Özet-Bu ekteki fikirler, ögrenme hızınızı mümkün en yüksek degerinde tutmanızda size yardımcı olm... more Özet-Bu ekteki fikirler, ögrenme hızınızı mümkün en yüksek degerinde tutmanızda size yardımcı olması umudu ile oluşturulmuştur. Bu bülümdeki 'dürüstçe' kelimesi, amacınıza hizmet edeņ seyleri seçmiş oldugunuz durumu belirtmek için kullanılacaktır.