Pub Date : 2023-03-15DOI: 10.25156/ptj.v12n2y2022.pp42-46
Z. O. Khudhur, Sonia E. Ishaq, Rebaz H. Salih, Karzan Abdullah, Dahat Hawezy, Karwan Y. Mohammed, G. Othman, S. W. Smail
In December 2019, a new coronavirus disease caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) appeared in Wuhan city and quickly became a global health issue. COVID-19 causes various symptoms ranging from no symptoms to potentially deadly pneumonia. The study aimed to understand the effects of SARS-CoV-2 infection on immune response and the differences in inflammatory, coagulation, and cardiac biomarkers between male and female patients. Between June 1st and November 1st, 2020, 95 cases of SARS-CoV-2 infected individuals were studied at Zanko Hospital. SARS-CoV-2 infection was confirmed using the real-time RT-PCR technique. All cases were analyzed for clinical, epidemiological, and laboratory data. On average, the patients were 50.64 (SEM= 2.359) years old, with 61 males and 34 females. The patients had elevated C-reactive protein (CRP), which was 43.96 (SEM= 6.154), while the erythrocyte sedimentation rate (ESR) was 50.50 (SEM= 5.498). The mean of D-Dimer, ferritin and lactate dehydrogenase (LDH) were 1.204 (SEM= 0.164), 534.7 (SEM= 61.48), and 366.6 (SEM= 36.81), respectively. There were no significant differences in the study's data mentioned above between male and female patients. In conclusion, inflammation is the most prominent symptom in COVID-19 patients, and males and females are nearly equally affected.
{"title":"Gender-based differences of inflammatory, coagulation, and cardiac markers in COVID-19 patients in Erbil city","authors":"Z. O. Khudhur, Sonia E. Ishaq, Rebaz H. Salih, Karzan Abdullah, Dahat Hawezy, Karwan Y. Mohammed, G. Othman, S. W. Smail","doi":"10.25156/ptj.v12n2y2022.pp42-46","DOIUrl":"https://doi.org/10.25156/ptj.v12n2y2022.pp42-46","url":null,"abstract":"In December 2019, a new coronavirus disease caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) appeared in Wuhan city and quickly became a global health issue. COVID-19 causes various symptoms ranging from no symptoms to potentially deadly pneumonia. The study aimed to understand the effects of SARS-CoV-2 infection on immune response and the differences in inflammatory, coagulation, and cardiac biomarkers between male and female patients. Between June 1st and November 1st, 2020, 95 cases of SARS-CoV-2 infected individuals were studied at Zanko Hospital. SARS-CoV-2 infection was confirmed using the real-time RT-PCR technique. All cases were analyzed for clinical, epidemiological, and laboratory data. On average, the patients were 50.64 (SEM= 2.359) years old, with 61 males and 34 females. The patients had elevated C-reactive protein (CRP), which was 43.96 (SEM= 6.154), while the erythrocyte sedimentation rate (ESR) was 50.50 (SEM= 5.498). The mean of D-Dimer, ferritin and lactate dehydrogenase (LDH) were 1.204 (SEM= 0.164), 534.7 (SEM= 61.48), and 366.6 (SEM= 36.81), respectively. There were no significant differences in the study's data mentioned above between male and female patients. In conclusion, inflammation is the most prominent symptom in COVID-19 patients, and males and females are nearly equally affected.","PeriodicalId":44937,"journal":{"name":"Journal of Polytechnic-Politeknik Dergisi","volume":"142 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90890218","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-03-15DOI: 10.25156/ptj.v12n2y2022.pp92-99
Saman I. Othman, Fattma A. Ali
Background and objectives: Gram-negative bacteria are one of the most prevalent complications among immunocompromised cancer sufferers and pose the greatest threat to these patients. Our study aimed to conduct research on Gram-negative bacteria isolated from various clinical samples among cancerous patients and non-cancerous patients in Erbil city to analyze and compare some virulence genes among them such as tuf, atpD1, atpD2, ms-1, ms-2 and ms-3. Methods: The current study was carried out in Nanakaly hospital and other public health hospitals in Erbil- Kurdistan region at a period extending from August 2021 to March 2022. A total of 100 different clinical samples including urine, sputum, wound swab, stool, blood, have been collected from patients with different types of cancer (n=50) and non-cancerous patients (n=50), from both gender (male and female), without limited age group. Gram-negative bacterial isolates identified by microscopical, macroscopical analysis and Vitek II compact system. Results: The results of amplification of tuf gene among the cancerous patients were (70%), while the results among the non-cancerous patients was (52%). The percentage of atpD1 from cancer patients were (52%), as well as the appearance among non-cancerous patients were (44%) isolates. The results of atpD2 among cancer patients were (52%). However, the average of atpD2 among patients without cancer were (48%). The results of agarose gel electrophoresis of amplicons appeared that (32%) samples possess ms-1 among cancer cases, while there have not any positive results for control patients. Also, the results of ms-2 gene were (28%) from cancer patients, whereas, the prevalence of ms-2 gene marker among patients without cancer was (6%). The distribution of ms-3 gene was (22%) among cancer patients. Otherwise, the prevalence from samples of patients other than cancer were (20%). According to the statistical tests, the results showed no significant association between genes and type of bacteria in cancerous patients as well as in non-cancerous patients. Conclusions: tuf, atpD1 and atpD2 genes sealed a discriminated gene as a virulence factor encoding genes for identification of gram-negative bacteria. To the public health and especially from patients with cancer there is a main distribution of ms-1, ms-2 and ms-3 genes among gram-negative bacteria.
{"title":"Molecular Comparative Study of Virulence Factors Produced by Gram-Negative Bacteria Isolated from Several Cancer Cases and NonCancer Patients in Erbil Governorate, Iraq","authors":"Saman I. Othman, Fattma A. Ali","doi":"10.25156/ptj.v12n2y2022.pp92-99","DOIUrl":"https://doi.org/10.25156/ptj.v12n2y2022.pp92-99","url":null,"abstract":"Background and objectives: Gram-negative bacteria are one of the most prevalent complications among immunocompromised cancer sufferers and pose the greatest threat to these patients.\u0000Our study aimed to conduct research on Gram-negative bacteria isolated from various clinical samples among cancerous patients and non-cancerous patients in Erbil city to analyze and compare some virulence genes among them such as tuf, atpD1, atpD2, ms-1, ms-2 and ms-3.\u0000Methods: The current study was carried out in Nanakaly hospital and other public health hospitals in Erbil- Kurdistan region at a period extending from August 2021 to March 2022. A total of 100 different clinical samples including urine, sputum, wound swab, stool, blood, have been collected from patients with different types of cancer (n=50) and non-cancerous patients (n=50), from both gender (male and female), without limited age group. Gram-negative bacterial isolates identified by microscopical, macroscopical analysis and Vitek II compact system.\u0000Results: The results of amplification of tuf gene among the cancerous patients were (70%), while the results among the non-cancerous patients was (52%). The percentage of atpD1 from cancer patients were (52%), as well as the appearance among non-cancerous patients were (44%) isolates. The results of atpD2 among cancer patients were (52%). However, the average of atpD2 among patients without cancer were (48%). The results of agarose gel electrophoresis of amplicons appeared that (32%) samples possess ms-1 among cancer cases, while there have not any positive results for control patients. Also, the results of ms-2 gene were (28%) from cancer patients, whereas, the prevalence of ms-2 gene marker among patients without cancer was (6%). The distribution of ms-3 gene was (22%) among cancer patients. Otherwise, the prevalence from samples of patients other than cancer were (20%). According to the statistical tests, the results showed no significant association between genes and type of bacteria in cancerous patients as well as in non-cancerous patients.\u0000Conclusions: tuf, atpD1 and atpD2 genes sealed a discriminated gene as a virulence factor encoding genes for identification of gram-negative bacteria. To the public health and especially from patients with cancer there is a main distribution of ms-1, ms-2 and ms-3 genes among gram-negative bacteria.","PeriodicalId":44937,"journal":{"name":"Journal of Polytechnic-Politeknik Dergisi","volume":"2 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80330906","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-03-15DOI: 10.2339/politeknik.1240323
Kutbay Sezen
Air source heat pumps (ASHP), known as energy efficient systems, emerge as environmentally friendly and economical solutions for building heating. Unfortunately, the operating parameters of ASHPs and accordingly their performance are directly affected by the daily and seasonal temperature changes of the outside air. In this study, change in operation parameters of a selected ASHP with 3.4kW nominal heating capacity is investigated with a calculation method based on the logarithmic mean temperature difference, between -10°C to 18°C outdoor temperature range with 2°C steps, at constant compressor power. The study is verified with published COP data of the manufacturer. Results are shared with graphs that give the variation of refrigerant evaporation and condensation temperature and pressure, COP, and condenser heating load according to outdoor air temperature. A raise from -10°C to 18°C in outdoor temperature, increases the COP value from 3.38 to 5.49. Detection of the increase in evaporation pressure in parallel with the outdoor temperature may allow easy control of the refrigerant charge level with a manometer. This study can be a useful guide for researchers who aim to determine the outdoor temperature dependent operating parameters of an ASHP and for technical personnel who need this information in fields.
{"title":"Operation Parameters Variation of Air Source Heat Pump According to the Outdoor Temperature","authors":"Kutbay Sezen","doi":"10.2339/politeknik.1240323","DOIUrl":"https://doi.org/10.2339/politeknik.1240323","url":null,"abstract":"Air source heat pumps (ASHP), known as energy efficient systems, emerge as environmentally friendly and economical solutions for building heating. Unfortunately, the operating parameters of ASHPs and accordingly their performance are directly affected by the daily and seasonal temperature changes of the outside air. In this study, change in operation parameters of a selected ASHP with 3.4kW nominal heating capacity is investigated with a calculation method based on the logarithmic mean temperature difference, between -10°C to 18°C outdoor temperature range with 2°C steps, at constant compressor power. The study is verified with published COP data of the manufacturer. Results are shared with graphs that give the variation of refrigerant evaporation and condensation temperature and pressure, COP, and condenser heating load according to outdoor air temperature. A raise from -10°C to 18°C in outdoor temperature, increases the COP value from 3.38 to 5.49. Detection of the increase in evaporation pressure in parallel with the outdoor temperature may allow easy control of the refrigerant charge level with a manometer. This study can be a useful guide for researchers who aim to determine the outdoor temperature dependent operating parameters of an ASHP and for technical personnel who need this information in fields.","PeriodicalId":44937,"journal":{"name":"Journal of Polytechnic-Politeknik Dergisi","volume":" ","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47970283","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-03-15DOI: 10.25156/ptj.v12n2y2022.pp17-28
Jwan Rashid, Salih A. Abdulla
Background and Objectives: Birth preparedness and complication readiness (BP/CR) is a plan that helps women to consider all obtainable maternal health care services. The aim of this study was to assess the level of knowledge on key danger signs and components of BP/CR among pregnant women within 3rd trimester who attending primary health care centers in Erbil city.Methods: A descriptive study was conducted on 300 pregnant women, during the period mid-March 2019 to the end of July 2019 in five primary health care centers in Erbil city. Data gathered through interview with study sample and using structured questionnaires and purposive sampling technique used to selected samples. Data were analyzed by using the social package of statistical science (SPSS version 23).Results: Pregnant women were between the ages of 15 and 46 years, about 8% of the women aged less than 20 years, and 12.3% aged ≥ 35 years. About (93.7%)of the women thinks that planning for the place of delivery is important while only 1.3% thinks that it is important to identify skilled attendant. Also high knowledge about birth preparedness was associated significantly (p = 0.041) with age and the distance to the health care facility (p = 0.003) but there are not significant association with other socio-demographic factors.Conclusion: Large proportion of pregnant women had good knowledge about some of key danger signs. Generally, majority of the respondents had increased awareness on most of components of BP/CR.
背景和目的:分娩准备和并发症准备(BP/CR)是一项帮助妇女考虑所有可获得的孕产妇保健服务的计划。本研究的目的是评估在埃尔比勒市初级卫生保健中心就诊的妊娠晚期孕妇对BP/CR关键危险体征和组成部分的知识水平。方法:2019年3月中旬至2019年7月底，对埃尔比勒市5个初级卫生保健中心的300名孕妇进行了描述性研究。通过对研究样本的访谈，采用结构化问卷和有目的抽样技术对选定样本进行收集。数据分析使用统计科学的社会软件包(SPSS version 23)。结果:孕妇年龄在15 ~ 46岁之间，年龄小于20岁占8%，年龄≥35岁占12.3%。约93.7%的妇女认为计划分娩地点很重要，而只有1.3%的妇女认为确定熟练的助产士很重要。此外，对生育准备的高度了解与年龄和到医疗机构的距离(p = 0.003)显著相关(p = 0.041)，但与其他社会人口因素没有显著关联。结论:大部分孕妇对一些关键的危险体征有较好的认识。一般来说，大多数受访者对BP/CR的大部分组成部分的认识有所提高。
{"title":"Birth Preparedness and Complication Readiness Among Pregnant Women Attending Primary Health Care Centers in Erbil City","authors":"Jwan Rashid, Salih A. Abdulla","doi":"10.25156/ptj.v12n2y2022.pp17-28","DOIUrl":"https://doi.org/10.25156/ptj.v12n2y2022.pp17-28","url":null,"abstract":"Background and Objectives: Birth preparedness and complication readiness (BP/CR) is a plan that helps women to consider all obtainable maternal health care services. The aim of this study was to assess the level of knowledge on key danger signs and components of BP/CR among pregnant women within 3rd trimester who attending primary health care centers in Erbil city.Methods: A descriptive study was conducted on 300 pregnant women, during the period mid-March 2019 to the end of July 2019 in five primary health care centers in Erbil city. Data gathered through interview with study sample and using structured questionnaires and purposive sampling technique used to selected samples. Data were analyzed by using the social package of statistical science (SPSS version 23).Results: Pregnant women were between the ages of 15 and 46 years, about 8% of the women aged less than 20 years, and 12.3% aged ≥ 35 years. About (93.7%)of the women thinks that planning for the place of delivery is important while only 1.3% thinks that it is important to identify skilled attendant. Also high knowledge about birth preparedness was associated significantly (p = 0.041) with age and the distance to the health care facility (p = 0.003) but there are not significant association with other socio-demographic factors.Conclusion: Large proportion of pregnant women had good knowledge about some of key danger signs. Generally, majority of the respondents had increased awareness on most of components of BP/CR.","PeriodicalId":44937,"journal":{"name":"Journal of Polytechnic-Politeknik Dergisi","volume":"1 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90334023","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-03-15DOI: 10.25156/ptj.v12n2y2022.pp1-5
Yaseen Aziz
Seepage is the main problem of earth dams; most failures are occurred due to excessive amount ofseepage. In zoned earth dams clay core is provided to minimize seepage quantity and its dimensions andshape has great influence on seepage quantity. In this study seepage through earth dam with vertical andslanting core case were analyzed for different side slopes and top width. For vertical core cases differentside slopes ranges from 0H:1V to 2H:1V and different top width from (3-10) m were analyzed. Due to lowerpermeability coefficient of core material seepage discharge reduced as side slopes and top width increase.The seepage discharge for slanting core cases are more than vertical cases with similar area of core. Theresults obtained in this study are agreed with the results of the other investigators However, in slanting corecases the downstream part dry during steady state condition; this is helpful in improving downstreamstability.
{"title":"Effect of Core Shape and its Side Slopes on Seepage Quantity of Zoned Earth Dam","authors":"Yaseen Aziz","doi":"10.25156/ptj.v12n2y2022.pp1-5","DOIUrl":"https://doi.org/10.25156/ptj.v12n2y2022.pp1-5","url":null,"abstract":"Seepage is the main problem of earth dams; most failures are occurred due to excessive amount ofseepage. In zoned earth dams clay core is provided to minimize seepage quantity and its dimensions andshape has great influence on seepage quantity. In this study seepage through earth dam with vertical andslanting core case were analyzed for different side slopes and top width. For vertical core cases differentside slopes ranges from 0H:1V to 2H:1V and different top width from (3-10) m were analyzed. Due to lowerpermeability coefficient of core material seepage discharge reduced as side slopes and top width increase.The seepage discharge for slanting core cases are more than vertical cases with similar area of core. Theresults obtained in this study are agreed with the results of the other investigators However, in slanting corecases the downstream part dry during steady state condition; this is helpful in improving downstreamstability.","PeriodicalId":44937,"journal":{"name":"Journal of Polytechnic-Politeknik Dergisi","volume":"38 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75511329","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-03-15DOI: 10.25156/ptj.v12n2y2022.pp6-16
Z. Rustam, N. Sulaiman
There are many integral transforms that are widely used to solve numerous real-life, science, and engineering problems. In this article, we present SEE transform for determining the solution of the system of linear Volterra integro-differential equations of the second kind. Some applications have been given and solved by using the SEE transform for illustrating the applicability of the SEE transform. Results of the applications assert that the SEE transform is very effective for obtaining the exact solution of this equation.
{"title":"SEE Transform Technique for Solving System of Linear Volterra Integro-Differential Equations of the Second Kind","authors":"Z. Rustam, N. Sulaiman","doi":"10.25156/ptj.v12n2y2022.pp6-16","DOIUrl":"https://doi.org/10.25156/ptj.v12n2y2022.pp6-16","url":null,"abstract":"There are many integral transforms that are widely used to solve numerous real-life, science, and engineering problems. In this article, we present SEE transform for determining the solution of the system of linear Volterra integro-differential equations of the second kind. Some applications have been given and solved by using the SEE transform for illustrating the applicability of the SEE transform. Results of the applications assert that the SEE transform is very effective for obtaining the exact solution of this equation.","PeriodicalId":44937,"journal":{"name":"Journal of Polytechnic-Politeknik Dergisi","volume":"481 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77772186","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-03-15DOI: 10.2339/politeknik.1187864
M. Soyaslan, Yusuf Avşar, A. Fenerci̇oglu, Feyyaz Sarihan
Elevator traction motors are critical components of elevator systems. After the structural analysis of the traction motor, it is necessary to proceed to the production processes for the comfortable and safe use of elevator systems. In this study, the static load values for bearing lifetime calculation, belt selection, and finite element analyses (FEA) were determined. According to calculated loads; materials, bearings, belt, pulley, brake, and encoder were selected. In order to obtain a design in accordance with elevator standards, motor parts were examined for structural analysis. Finite element analyses were carried out according to the determined maximum static load values, and a new belt elevator traction motor design that provides the safety coefficients has emerged. When the FEA analysis results of bending moments are examined; the maximum Von Mises stress acting on the motor frame and shaft was obtained 17.1 MPa and 27.62 MPa respectively. The maximum Von Mises stress was obtained under the torsional moment as 71.4 MPa and the shaft is 6.1 times safe against a torsional moment. This value is the minimum safety factor of the designed system and safety factors of bending moments are higher than this value. The designed elevator machine has got 12.9 kW rated power, 1.6 m/s cabin speed, and 1175 kg carrying capacity. The advantage of the proposed design is to eliminate the casting process with modular structure via double side belt system. The prototype of the designed motor was produced and it was observed that the motor provided the desired constraints as a result of the loading experiments.
{"title":"Design and Production of Belt Drive Elevator Traction Machine: Modelling of Double Side Belt System","authors":"M. Soyaslan, Yusuf Avşar, A. Fenerci̇oglu, Feyyaz Sarihan","doi":"10.2339/politeknik.1187864","DOIUrl":"https://doi.org/10.2339/politeknik.1187864","url":null,"abstract":"Elevator traction motors are critical components of elevator systems. After the structural analysis of the traction motor, it is necessary to proceed to the production processes for the comfortable and safe use of elevator systems. In this study, the static load values for bearing lifetime calculation, belt selection, and finite element analyses (FEA) were determined. According to calculated loads; materials, bearings, belt, pulley, brake, and encoder were selected. In order to obtain a design in accordance with elevator standards, motor parts were examined for structural analysis. Finite element analyses were carried out according to the determined maximum static load values, and a new belt elevator traction motor design that provides the safety coefficients has emerged. When the FEA analysis results of bending moments are examined; the maximum Von Mises stress acting on the motor frame and shaft was obtained 17.1 MPa and 27.62 MPa respectively. The maximum Von Mises stress was obtained under the torsional moment as 71.4 MPa and the shaft is 6.1 times safe against a torsional moment. This value is the minimum safety factor of the designed system and safety factors of bending moments are higher than this value. The designed elevator machine has got 12.9 kW rated power, 1.6 m/s cabin speed, and 1175 kg carrying capacity. The advantage of the proposed design is to eliminate the casting process with modular structure via double side belt system. The prototype of the designed motor was produced and it was observed that the motor provided the desired constraints as a result of the loading experiments.","PeriodicalId":44937,"journal":{"name":"Journal of Polytechnic-Politeknik Dergisi","volume":" ","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42650610","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-03-15DOI: 10.25156/ptj.v12n2y2022.pp100-113
Sardar KH. Hassan, M. Daneshwar
Background and objectives: Computer systems and network infrastructures are still exposed to many security risks and cyber-attack vulnerabilities despite advancements of information security. Traditional signature-based intrusion detection systems and security solutions by matching rule-based mechanism and prior knowledge are insufficient of fully protecting computer networks against novel attacks. For this purpose, Anomaly-based Network Intrusion Detection System (A-NIDS) as cyber security tool is considered for identifying and detecting anomalous behavior in the flow-based network traffic alongside with firewalls and other security measures. The main objective of the research is to improve the detection rate and reduce false-positive rates of the classifier using anomaly-based technique. Methods: an intelligent technique using deep learning algorithm and mutual information feature selection (MIFS) method to select optimal features on the benchmark datasets. Proposed method accurately capable of classifying normal and anomalous states of the data packets in a comprehensive way by combination of Long-Short term memory (LSTM) algorithm and MIFS method. Results: The model achieved encouraging results in terms of accuracy 99.79%, 0.002 false-positive rate with minimum time compared to other models recorded only 81.75s on CSE-CIC-IDS2018 dataset. At the end of the study, comparative studies are conducted to verify the effectiveness of proposed method on three realistic and latest intrusion detection datasets, named CSE_CIC-IDS2018, CIC-IDS2017, and NF-CSE-CIC-IDS2018 dataset. Conclusions: Proposed model in a combination of LSTM NN and Feature selection method (MIFS) increased detection rate and reduced false-positive alarms, also the model able to detect low frequent attacks while other existing models are suffering from.
{"title":"Anomaly-based Network Intrusion Detection System using Deep Intelligent Technique","authors":"Sardar KH. Hassan, M. Daneshwar","doi":"10.25156/ptj.v12n2y2022.pp100-113","DOIUrl":"https://doi.org/10.25156/ptj.v12n2y2022.pp100-113","url":null,"abstract":"Background and objectives: Computer systems and network infrastructures are still exposed to many security risks and cyber-attack vulnerabilities despite advancements of information security. Traditional signature-based intrusion detection systems and security solutions by matching rule-based mechanism and prior knowledge are insufficient of fully protecting computer networks against novel attacks. For this purpose, Anomaly-based Network Intrusion Detection System (A-NIDS) as cyber security tool is considered for identifying and detecting anomalous behavior in the flow-based network traffic alongside with firewalls and other security measures. The main objective of the research is to improve the detection rate and reduce false-positive rates of the classifier using anomaly-based technique.\u0000Methods: an intelligent technique using deep learning algorithm and mutual information feature selection (MIFS) method to select optimal features on the benchmark datasets. Proposed method accurately capable of classifying normal and anomalous states of the data packets in a comprehensive way by combination of Long-Short term memory (LSTM) algorithm and MIFS method.\u0000Results: The model achieved encouraging results in terms of accuracy 99.79%, 0.002 false-positive rate with minimum time compared to other models recorded only 81.75s on CSE-CIC-IDS2018 dataset. At the end of the study, comparative studies are conducted to verify the effectiveness of proposed method on three realistic and latest intrusion detection datasets, named CSE_CIC-IDS2018, CIC-IDS2017, and NF-CSE-CIC-IDS2018 dataset.\u0000Conclusions: Proposed model in a combination of LSTM NN and Feature selection method (MIFS) increased detection rate and reduced false-positive alarms, also the model able to detect low frequent attacks while other existing models are suffering from.","PeriodicalId":44937,"journal":{"name":"Journal of Polytechnic-Politeknik Dergisi","volume":"44 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91170075","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-03-15DOI: 10.25156/ptj.v12n2y2022.pp114-120
A. Ali, T. S. Rashid
Background and objectives: Olive knot disease caused by the phytopathogenic bacterium Pseudomonas savastanoi affects olive cultivation in both quality and quantity. Endophytic bacteria are candidates for biocontrol agents according to previous research. Methods: In this study we collected samples (leaves and galls) randomly for pathogen and endophytic bacteria isolation from the different olive growing areas around Erbil including (Qucha Blbas, Grdasor, Sami Abdulrahman Park, and College of Agricultural Engineering Sciences) on June - October 2021. Results: Forty-six isolates of endophytic bacteria were obtained and tested against P. savastanoi. The result indicated that five isolates showed growth inhibition of the pathogen among them two of the most effective isolates selected (Oq5 and Og2) with the pathogenic isolate molecularly identified using amplified 16S rDNA. The pathogenic isolate identified as P. savastanoi (Accession No. OP001734), isolate Oq5 P. fluorescens (Accession No. OP001733), and Og2 as Bacillus sp. (Accession No. OP001732). Also, their secondary metabolites extracted at different times of incubation and tested using the agar well diffusion method showed great inhibition of the pathogen. Both isolates showed the highest inhibition zone (25-26mm) after 10 days of incubation. Conclusions: Our results suggest that both endophytic bacteria isolate effective biocontrol of olive knot disease.
{"title":"Biocontrol Activities of Olive Endophytic Bacteria Isolates Against Pseudomonas savastanoi","authors":"A. Ali, T. S. Rashid","doi":"10.25156/ptj.v12n2y2022.pp114-120","DOIUrl":"https://doi.org/10.25156/ptj.v12n2y2022.pp114-120","url":null,"abstract":"Background and objectives: Olive knot disease caused by the phytopathogenic bacterium Pseudomonas savastanoi affects olive cultivation in both quality and quantity. Endophytic bacteria are candidates for biocontrol agents according to previous research.\u0000Methods: In this study we collected samples (leaves and galls) randomly for pathogen and endophytic bacteria isolation from the different olive growing areas around Erbil including (Qucha Blbas, Grdasor, Sami Abdulrahman Park, and College of Agricultural Engineering Sciences) on June - October 2021.\u0000Results: Forty-six isolates of endophytic bacteria were obtained and tested against P. savastanoi. The result indicated that five isolates showed growth inhibition of the pathogen among them two of the most effective isolates selected (Oq5 and Og2) with the pathogenic isolate molecularly identified using amplified 16S rDNA. The pathogenic isolate identified as P. savastanoi (Accession No. OP001734), isolate Oq5 P. fluorescens (Accession No. OP001733), and Og2 as Bacillus sp. (Accession No. OP001732). Also, their secondary metabolites extracted at different times of incubation and tested using the agar well diffusion method showed great inhibition of the pathogen. Both isolates showed the highest inhibition zone (25-26mm) after 10 days of incubation.\u0000Conclusions: Our results suggest that both endophytic bacteria isolate effective biocontrol of olive knot disease.","PeriodicalId":44937,"journal":{"name":"Journal of Polytechnic-Politeknik Dergisi","volume":"24 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84030630","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-03-15DOI: 10.25156/ptj.v12n2y2022.pp61-69
Bilal I. Mohammed, Xaraman N. Hamed
The research was conducted in the field of Khabat Technical Institute / Erbil Polytechnic University during winter season of 2019-2020 and summer season of 2020. It shows the effect of planting date, varieties on growth and yield component of sugar beet under two different seasonal conditions. A factorial experimental design was applied in randomized complete block design with three replication; the first factor represents three planting dates (1st October, 16th October and 31th October, 2019) in winter and (1st March, 16th March and 31th March, 2020) in summer season, the second factor was three varieties of sugar beet (Germany, Turkish and Iranian), had been applied in both seasons. The combined effect of planting in 1st October and the Turkish variety produced the highest value of all study traits; No. of leaf.plant-1, leaf area (cm2), leaf area index (LAI), root length cm, root diameter cm, root weight kg.plant-1, root yield t.ha-1, sugar % and sugar yield t.ha-1in winter season, but the Germany variety surpassed in length of root (cm) in summer season. The interaction between planting date from 1st October with Turkish variety recorded the highest value of all study traits, in winter season achieved the lowest value in number of leaf.plant-1, root length cm, root diameter cm, root weight kg.plant-1, root yield t.ha-1, sugar% and sugar yield, were recorded from the interaction between planting in 31th March and Iranian variety in summer season. On the other hand, the interaction treatment 31th March with Turkish variety recorded the lowest value in leaf area and leaf area index.
{"title":"Response of Some Sugar Beet Varieties to Different Sowing Dates Under Two Seasonal Conditions in Khabat","authors":"Bilal I. Mohammed, Xaraman N. Hamed","doi":"10.25156/ptj.v12n2y2022.pp61-69","DOIUrl":"https://doi.org/10.25156/ptj.v12n2y2022.pp61-69","url":null,"abstract":"The research was conducted in the field of Khabat Technical Institute / Erbil Polytechnic University during winter season of 2019-2020 and summer season of 2020. It shows the effect of planting date, varieties on growth and yield component of sugar beet under two different seasonal conditions. A factorial experimental design was applied in randomized complete block design with three replication; the first factor represents three planting dates (1st October, 16th October and 31th October, 2019) in winter and (1st March, 16th March and 31th March, 2020) in summer season, the second factor was three varieties of sugar beet (Germany, Turkish and Iranian), had been applied in both seasons. The combined effect of planting in 1st October and the Turkish variety produced the highest value of all study traits; No. of leaf.plant-1, leaf area (cm2), leaf area index (LAI), root length cm, root diameter cm, root weight kg.plant-1, root yield t.ha-1, sugar % and sugar yield t.ha-1in winter season, but the Germany variety surpassed in length of root (cm) in summer season. The interaction between planting date from 1st October with Turkish variety recorded the highest value of all study traits, in winter season achieved the lowest value in number of leaf.plant-1, root length cm, root diameter cm, root weight kg.plant-1, root yield t.ha-1, sugar% and sugar yield, were recorded from the interaction between planting in 31th March and Iranian variety in summer season. On the other hand, the interaction treatment 31th March with Turkish variety recorded the lowest value in leaf area and leaf area index.","PeriodicalId":44937,"journal":{"name":"Journal of Polytechnic-Politeknik Dergisi","volume":"40 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88483113","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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