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Article ; Online: Investigation of the Effect of CeO2 Nanoparticle Addition in Diesel Fuel on Engine Performance and Emissions

Abdullah Burak Arslan / Mehmet Çelik

Journal of ETA Maritime Science, Vol 10, Iss 3, Pp 145-

2022 Volume 155

Abstract: In this study, the effects of the additive on engine performance and emissions were investigated by adding cerium oxide (CeO2) nanoparticles (NPs) into diesel fuel. The use of CeO2 NPs as an additive increased the lower calorific value (LHV) of the fuel ... ...

Abstract	In this study, the effects of the additive on engine performance and emissions were investigated by adding cerium oxide (CeO2) nanoparticles (NPs) into diesel fuel. The use of CeO2 NPs as an additive increased the lower calorific value (LHV) of the fuel while decreasing its viscosity and density. As a result of the experiments, an increase of 8.99% in engine torque was obtained in DCe100 fuel which 100 ppm CeO2 NPs were added compared to diesel (D0) fuel. The increase in the LHV had a positive effect on the specific fuel consumption. The use of CeO2 NPs resulted in an increase in brake thermal efficiency (BTE) due to the increased ending temperature of combustion. A 5.44% increase was obtained in DCe100 fuel compared to D0 fuel in terms of BTE. With an increase in the amount of CeO2, carbon dioxide (CO), hydrocarbon (HC), and smoke emissions were reduced. Compared to D0 fuel, the lowest values were obtained with the DCe100 fuel. CO emissions were reduced by 18.27%, HC emissions by 30.12%, and soot emissions by 21.63%. However, nitrogen oxides (NOX) emissions increased with rising CeO2 amount and in-cylinder temperature. The highest NOX value in DCe100 fuel was obtained with an increase of 6.65% compared to D0 fuel.
Keywords	ceo2 ; engine performance ; exhaust gas emissions ; nanoparticle additives ; Naval Science ; V ; Naval architecture. Shipbuilding. Marine engineering ; VM1-989
Language	English
Publishing date	2022-09-01T00:00:00Z
Publisher	Gemi Makinaları İşletme Mühendisleri Odası
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article: A Hidden Energy Source: Giant Reed (Arundo donax L.)

Mustafa Burak ARSLAN / Sıla GÜMÜŞTAŞ / Arzu YUCEL

Mehmet Akif Ersoy üniversitesi fen bilimleri enstitüsü. 2021 May, v. 12, no. 1

2021

Abstract: Fossil-based fuels while supply the energy needs of the world, on the other hand release greenhouse gases, especially carbon dioxide, into the atmosphere. In the last quarter century, biomass energy has gained importance, particularly in direct ... ...

Abstract	Fossil-based fuels while supply the energy needs of the world, on the other hand release greenhouse gases, especially carbon dioxide, into the atmosphere. In the last quarter century, biomass energy has gained importance, particularly in direct combustion systems. The continuity of raw material is an important matter in biomass energy production. At this point, giant reed (Arundo donax L.), a perennial C3 plant that can be easily grown in different ecological conditions, has drawn considerable interest in various countries of the world, mainly in Southern Europe and Costa Rica. The calorific value of the giant reed, which can deliver up to 100 tons of biomass per hectare under suitable conditions, is between 17,200 – 20,600 kj/kg. In this study, the usability of the giant reed, this unable to exceed the local usage in our country, in combustion systems was examined in the light of the studies in the literature. This review had been compiled under three main frameworks as general properties and usage areas, chemical characterization, biomass amount and calorific value of the giant reed. Thus, it had been tried to form a technical basis for the industrial usage of giant reed in combustion systems.
Keywords	Arundo donax ; C3 plants ; biomass ; carbon dioxide ; combustion ; energy ; fens ; greenhouses ; raw materials ; Costa Rica ; Southern European region
Language	English
Dates of publication	2021-05
Size	p. 167-178.
Publishing place	Burdur Mehmet Akif Ersoy University
Document type	Article
ISSN	1309-2243
DOI	10.29048/makufebed.865925
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: A Hidden Energy Source

Mustafa Burak ARSLAN / Sıla GÜMÜŞTAŞ / Arzu YUCEL

Mehmet Akif Ersoy Üniversitesi Fen Bilimleri Enstitüsü, Vol 12, Iss 1, Pp 167-

Giant Reed (Arundo donax L.)

2021 Volume 178

Abstract	Fossil-based fuels while supply the energy needs of the world, on the other hand release greenhouse gases, especially carbon dioxide, into the atmosphere. In the last quarter century, biomass energy has gained importance, particularly in direct combustion systems. The continuity of raw material is an important matter in biomass energy production. At this point, giant reed (Arundo donax L.), a perennial C3 plant that can be easily grown in different ecological conditions, has drawn considerable interest in various countries of the world, mainly in Southern Europe and Costa Rica. The calorific value of the giant reed, which can deliver up to 100 tons of biomass per hectare under suitable conditions, is between 17,200 – 20,600 kj/kg. In this study, the usability of the giant reed, this unable to exceed the local usage in our country, in combustion systems was examined in the light of the studies in the literature. This review had been compiled under three main frameworks as general properties and usage areas, chemical characterization, biomass amount and calorific value of the giant reed. Thus, it had been tried to form a technical basis for the industrial usage of giant reed in combustion systems.
Keywords	arundo donax l ; biomass energy ; direct combustion ; giant reed ; Engineering (General). Civil engineering (General) ; TA1-2040 ; Science (General) ; Q1-390
Subject code	660
Language	English
Publishing date	2021-05-01T00:00:00Z
Publisher	Burdur Mehmet Akif Ersoy University
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Evaluation of cerebrospinal fluid neurofilament light chain levels in multiple sclerosis and non-demyelinating diseases of the central nervous system

Burak Arslan / Gökçe Ayhan Arslan / Aslı Tuncer / Rana Karabudak / Aylin Sepici Dinçel

Bosnian Journal of Basic Medical Sciences (2022)

clinical and biochemical perspective

2022

Abstract: The neurofilament light chain (NfL) is a promising biomarker in the diagnosis, prognosis, and treatment response evaluation of neurological diseases. The aims of this study were to compare the cerebrospinal fluid (CSF) NfL levels in multiple sclerosis ( ... ...

Abstract	The neurofilament light chain (NfL) is a promising biomarker in the diagnosis, prognosis, and treatment response evaluation of neurological diseases. The aims of this study were to compare the cerebrospinal fluid (CSF) NfL levels in multiple sclerosis (MS) and certain non-demyelinating diseases of the central nervous system (NDCNS); to determine the relationship between clinical and radiological features and CSF NfL levels in patients with MS; and to compare the enzyme-linked immunosorbent assay (ELISA) and single molecule array (SIMOA) methods for NfL measurement using paired CSF and serum samples. We retrospectively analyzed the clinical data and performed NfL measurements in CSF and serum samples of newly diagnosed and treatment-naive patients with CNS diseases evaluated between 1 January 2019 and 1 January 2020. Eligible patients were divided into three groups: MS (n=23), differential diagnosis of MS (n=19), and NDCNS (n=42). First, we compared the CSF NfL levels among the three groups using the previously validated CSF ELISA assay. Next, we evaluated the relationship between CSF NfL levels and the clinical and radiological findings in MS group. Finally, we compared CSF and serum samples from patients of the MS groups (paired serum and CSF samples, n=19) using two different methods (ELISA and SIMOA). The CSF NfL level was the highest in the NDCNS group (1169.64 [535.92-5120.11] pg/mL, p=0.025). There was a strong positive correlation between the number of T2 lesions and CSF NfL level (r=0.786, p<0.001) in the MS group. There was excellent consistency between ELISA and SIMOA for CSF samples, but not for serum samples. Our results indicated that CSF NfL levels may also be used in the management of NDCNS and that SIMOA is the most reliable method for serum NfL determination.
Keywords	Multiple sclerosis ; neurofilament light chain ; SIMOA ; ELISA ; Medicine (General) ; R5-920
Subject code	610
Language	English
Publishing date	2022-04-01T00:00:00Z
Publisher	Association of Basic Medical Sciences of Federation of Bosnia and Herzegovina
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Relationship Between AMACR Staining Density of Radical Prostatectomy Specimen and Biochemical Recurrence in Patients with Pathological Stage T2a-b

Murat Kars / Ersin Gökmen / Oktay Özman / Serkan Gönültaş / Burak Arslan

Üroonkoloji Bülteni, Vol 19, Iss 1, Pp 38-

2020 Volume 41

Abstract: Objective:This study aimed to evaluate the relationship between Alpha-methylacyl-CoA racemase (AMACR) staining intensity of pathologic specimens and Prostate Spesific Antigen (PSA) recurrence of patients with an organ-limited disease who underwent ... ...

Abstract	Objective:This study aimed to evaluate the relationship between Alpha-methylacyl-CoA racemase (AMACR) staining intensity of pathologic specimens and Prostate Spesific Antigen (PSA) recurrence of patients with an organ-limited disease who underwent radical prostatectomy for localized prostate cancer.Materials and Methods:The data of 46 patients who underwent radical retropubic prostatectomy and who had prostate-limited disease without capsule invasion in the pathological evaluation were included in the study. AMACR expression was assessed by immunohistochemical staining. Expression levels were classified as negative (score=0), weak (score=1), moderate (score=2) and strong (score=3) staining. Patients with a PSA value of ≥0.2 ng/mL at postoperative follow-up were considered to have a biochemical recurrence. Patients were divided into two groups, according to biochemical recurrence. Groups were compared in terms of AMACR staining intensities of radical prostatectomy specimens.Results:Twenty-one patients developed PSA recurrence in a mean follow-up period of 32±8 months. The remaining 25 patients were recurrence-free. The mean recurrence time was 24±5 months. According to AMACR staining scores, the biochemical recurrence rates of the patients were 33.3%, 40.7%, and 61.5% for score 1, score 2, and score 3, respectively. Although higher rates of PSA recurrence were observed in patients with more intense AMACR staining, the difference between rates was not statistically significant (p=0.38).Conclusion:PSA recurrence rate increases with increasing AMAC-CR staining intensity. Further studies are needed to obtain statistically significant results.
Keywords	amacr ; psa ; prostate cancer ; Medicine ; R ; Internal medicine ; RC31-1245 ; Specialties of internal medicine ; RC581-951 ; Diseases of the genitourinary system. Urology ; RC870-923 ; Neoplasms. Tumors. Oncology. Including cancer and carcinogens ; RC254-282
Subject code	610 ; 616
Language	English
Publishing date	2020-03-01T00:00:00Z
Publisher	Galenos Yayinevi
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Migraine susceptibility is modulated by food triggers and analgesic overuse via sulfotransferase inhibition

Doga Vuralli / Burak Arslan / Elif Topa / Andreia Lopes de Morais / Ozlem Gulbahar / Cenk Ayata / Hayrunnisa Bolay

The Journal of Headache and Pain, Vol 23, Iss 1, Pp 1-

2022 Volume 14

Abstract: Abstract Background/aim Certain constituents in migraine food triggers and non-steroidal anti-inflammatory drugs (NSAIDs) inhibit sulfotransferases (SULTs) that detoxify drugs/chemicals and play role in the metabolism of neurotransmitters. We aimed to ... ...

Abstract	Abstract Background/aim Certain constituents in migraine food triggers and non-steroidal anti-inflammatory drugs (NSAIDs) inhibit sulfotransferases (SULTs) that detoxify drugs/chemicals and play role in the metabolism of neurotransmitters. We aimed to dissect SULT1A1 modulation of CSD susceptibility and behavior in an in vivo experimental model using hesperidin, a SULT1A1 inhibitor found in citrus fruits (known migraine triggers) and mefenamic acid (SULT1A1 inhibitor), an NSAID to simulate medication overuse. Methods Hesperidin was used as SULT1A1 inhibitor found in citrus fruits, known migraine triggers and mefenamic acid (NSAID), another SULT1A1 inhibitor, was used to induce MO in rats. The groups were; 1) Hesperidin (ip) or its vehicle-DMSO (ip) 2) Chronic (4 weeks) mefenamic acid (ip) or its vehicle (ip) 3) Chronic mefenamic acid+hesperidin (ip) or DMSO (ip). CSD susceptibility was evaluated and behavioral testing was performed. SULT1A1 enzyme activity was measured in brain samples. Results Single-dose of hesperidin neither changed CSD susceptibility nor resulted in any behavioral change. Chronic mefenamic acid exposure resulted in increased CSD susceptibility, mechanical-thermal hypersensitivity, increased head shake, grooming and freezing and decreased locomotion. Single dose hesperidin administration after chronic mefenamic acid exposure resulted in increased CSD susceptibility and mechanical-thermal hypersensitivity, increased freezing and decreased locomotion. SULT1A1 enzyme activity was lower in mefenamic acid and mefenamic acid+hesperidin groups compared to their vehicles. Conclusion Mefenamic acid and hesperidin have synergistic effect in modulating CSD susceptibility and pain behavior. Sulfotransferase inhibition may be the common mechanism by which food triggers and NSAIDs modulate migraine susceptibility. Further investigations regarding human provocation studies using hesperidin in migraine patients with medication overuse are needed.
Keywords	SULT1A1 ; Migraine food triggers ; Medication overuse ; Cortical spreading depression ; Medicine ; R
Language	English
Publishing date	2022-03-01T00:00:00Z
Publisher	BMC
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Alternatif Hammadde Kaynağı Olarak Kargı Kamışı (Arundo donax L.) Üzerine Bir İnceleme

Turgut ŞAHİN / Burak ARSLAN

Süleyman Demirel Üniversitesi Fen Bilimleri Enstitüsü Dergisi, Vol 18, Iss

2015 Volume 3

Abstract: Gaint reed is an important plant that in the Mediterranean climate zone. It is a perennial and a fast-growing species that can grow in various conditions. Humans have been utilized that plant for the thousands of years. The windy instruments as well as ... ...

Abstract	Gaint reed is an important plant that in the Mediterranean climate zone. It is a perennial and a fast-growing species that can grow in various conditions. Humans have been utilized that plant for the thousands of years. The windy instruments as well as traditional and regional purpose goods are the main application areas of that specie. In Turkey, it is a raw material for the manufacture of weaving goods as well as vegetable and herbal essentials. Due to its chemical and fibrous properties, it is a potential raw material for cellulose and paper industry as well as composite industry. In suitable conditions, up to 100 tonnes/year of biomass from hectares can be harvested. However, It’s fibrous properties and chemical constituents similar to wood species. At the Mediterranean countries as well as United States, it became a popular biomass material but it is not consider an biomass source in our country. In this study, the general characteristics of giant reed have been established with literature findings. Hence, the main objective of that study to be a potential utilization of Giant reed in future research
Keywords	Kargı kamışı Biyokütle Lignoselülozik bitki Lif Kompozit ; Agriculture ; S ; Agriculture (General) ; S1-972 ; Technology (General) ; T1-995
Language	English
Publishing date	2015-01-01T00:00:00Z
Publisher	Suleyman Demirel University
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Comparison of two different methods of prosthesis placement in otosclerosis

Suphi BULGURCU / İlker Burak ARSLAN / Ömer UĞUR / İbrahim CUKUROVA

ENT Updates, Vol 9, Iss 1, Pp 34-

2019 Volume 37

Keywords	Medicine ; R ; Otorhinolaryngology ; RF1-547
Language	English
Publishing date	2019-04-01T00:00:00Z
Publisher	Continuing Education and Scientific Research Association (CESRA), Turkey
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Genç erişkin bireylerde tükürük ürik asit düzeylerinin biyosensör yöntemi ile değerlendirilmesi

Umut Kökbaş / Rabia Şemsi̇ / Burak Arslan / Aylin Sepi̇ci̇ Di̇nçel / Erdal Ergünol / Levent Kayrın

Cukurova Medical Journal, Vol 45, Iss 3, Pp 1137-

2020 Volume 1143

Abstract: Amaç: Bu çalışmada tükürük numunelerinde ürik asit miktar tayini için yeni bir amperometrik biyosensör kullanılması amaçlanarak, hazırlanan sistemde elektrodun iyi çalışma koşullarının belirlenmesi ve çalışmayı etkileyen faktörlerin tanımlanması ... ...

Abstract	Amaç: Bu çalışmada tükürük numunelerinde ürik asit miktar tayini için yeni bir amperometrik biyosensör kullanılması amaçlanarak, hazırlanan sistemde elektrodun iyi çalışma koşullarının belirlenmesi ve çalışmayı etkileyen faktörlerin tanımlanması hedeflenmiştir. Gereç ve Yöntem: Hazırlanan biyosensörde, BSA/jelatin kullanarak grafit elektrot üzerindeki ürikaz enzimi glutaraldehit ile çapraz bağlanmaktadır. Optimizasyon çalışmaları sırasında jelatin, sığır serum albümini ve glutaraldehit miktarları belirlendi. Karakterizasyon çalışmaları sırasında tekrarlanabilirlik, doğrusal ölçüm aralığı ve raf ömrü çalışmaları yapılmıştır. Validasyon ve verifikasyon çalışmaları için genç erişkin bireyler kontrol grubunu oluşturdu (n=26). Tükürük örneklerinden ürik asit değerleri kemilüminesans prensibi ile çalışan otoanalizör ile ölçüldü ve biyosensör sonuçları ile karşılaştırıldı. Bulgular: Tayin sınırının 6,0x10-4mM olduğu ve ürik asit konsantrasyonu için 6,0x10-4-5,0x10-3 mM aralığında doğrusal sonuçlar elde edildiği belirlenmiştir. Raf ömrü çalışmalarına baktığımızda sonuçlar 40. günün sonunda ,5 oranında korunmuştur, ölçüm tekrarlanabilirliği (n=15) standart sapması (S.S)=±0,1 ve % varyasyon (değişim) katsayısı (V.K)=0,2’dir. Otoanalizör sonuçları biyosensör sonuçları ile istatistiksel olarak karşılaştırıldığında çizilen ROC eğrisinde doğruluk oranı elde edilmiştir.Sonuç: Çalışmamızda geliştirdiğimiz yöntem kullanılarak ileri çalışmalarla taşınabilir ve girişimsel olmayan bir ürik asit tayin cihazı üretilebilir.
Keywords	biosensor ; uric acid ; saliva ; biyosensör ; ürik asit ; tükürük ; Medicine (General) ; R5-920
Language	English
Publishing date	2020-09-01T00:00:00Z
Publisher	Cukurova University
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article: Alternatif Hammadde Kaynağı Olarak Kargı Kamışı (Arundo donax L.) Üzerine Bir İnceleme

Turgut ŞAHİN / Burak ARSLAN

Süleyman Demirel üniversitesi fen bilimleri enstitüsü dergisi. 2015 Jan., v. 18, no. 3

2015

Abstract	Gaint reed is an important plant that in the Mediterranean climate zone. It is a perennial and a fast-growing species that can grow in various conditions. Humans have been utilized that plant for the thousands of years. The windy instruments as well as traditional and regional purpose goods are the main application areas of that specie. In Turkey, it is a raw material for the manufacture of weaving goods as well as vegetable and herbal essentials. Due to its chemical and fibrous properties, it is a potential raw material for cellulose and paper industry as well as composite industry. In suitable conditions, up to 100 tonnes/year of biomass from hectares can be harvested. However, It’s fibrous properties and chemical constituents similar to wood species. At the Mediterranean countries as well as United States, it became a popular biomass material but it is not consider an biomass source in our country. In this study, the general characteristics of giant reed have been established with literature findings. Hence, the main objective of that study to be a potential utilization of Giant reed in future research
Keywords	Arundo donax ; Mediterranean climate ; biomass ; cellulose ; fens ; manufacturing ; pulp and paper industry ; raw materials ; vegetables
Language	English
Dates of publication	2015-01
Publishing place	Suleyman Demirel University
Document type	Article
ISSN	1308-6529
DOI	10.19113/sdufbed.29536
Database	NAL-Catalogue (AGRICOLA)

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