99 research outputs found
A NOVEL APPROACH FOR DETAIL SURVEYS BY THE MOTORIZED GPSSIT CONCEPT IN RESIDENTIALS AREAS AND ITS APPLICATION
This paper introduces the usage and reliability of Motorized GPSSIT techniquewhich is a novel approach for surveying. It reviews the advantages of MotorizedGPSSIT concept and also considers to provide GNSS accuracy in the process ofsurveying especially for the cases which cannot be surveyed directly by the satellitenavigation systems (GPS-GNSS), such as closely packed residential areas, tallbuildings, trees, etc., and also places which GNSS receivers cannot be workefficiently due to signal interferences. In this technique, all the survey instrumentsare installed on a bed of a pick-up truck whereas in present techniques they areinstalled on the ground, therefore it is called Motorized GPSSIT. Study area waschosen within the housing area of our campus. In this area, classical surveying,GPSSIT and Motorized GPSSIT were performed to collect data for comparison andfor the analysis of this technique's usability and reliability. Stop and Go and RTKsurveying techniques were performed with GPSSIT and Motorized GPSSITconcepts. It is shown that the Motorized GPSSIT technique is applicable as otherpresent techniques in terms of accuracy and reliabilit
An Experimental Study on the Strengthening of RC Frames with Soft Storey Irregularities with Different Types of Steel Diagonals
When the loss of life and property is considered, it is clear that special precautions must be taken against the earthquakes among the natural disasters. Post-earthquake observations, especially those made in the developing countries, reveal that there are many reasons for the damage and loss of life, not just one. The formation of soft storey irregularity is one of the most important factors among them. In this study, it is aimed to propose an alternative strengthening method to eliminate the adverse effects of the formation of a soft storey irregularity. Four identical frames with two stories and single span were constructed and tested under reverse cyclic loading which simulates the earthquake. The first frame among them was prepared by bonding bricks as an infill wall on two stories and it was considered to be the reference frame. In the 2nd frame, the formation of soft storey irregularity was facilitated by removing the infill wall on the lower story and the behavioral differences were examined. The remaining two frames were strengthened by using steel elements in two different diagonal shapes on the lower story. As a result, the experimental study showed that the strengthening with steel diagonal elements increased the lateral load-carrying capacity of the frame with soft storey behavior by 250% and the energy dissipation by 120% and also provided better results than the reference frame
Heavy metal resistance of microorganisms from petroleum hydrocarbon contaminated soils located in Mersin, Turkey
European Biotechnology Congress -- MAY 25-27, 2017 -- Dubrovnik, CROATIAWOS: 000413585400193…Ahi Evran Univ. BAP [PYO-Fen.4003/2.14.009 (2015)]This work was supported in part by a grant from Ahi Evran Univ. BAP No: PYO-Fen.4003/2.14.009 (2015)
Schiff bases attached L-glutamine and L-asparagine: First investigation on antimutagenic and antimicrobial analyses
WOS: 000336498100007PubMed ID: 23687951This study was conducted to evaluate the antimutagenic and antimicrobial activities of Schiff bases attached L-glutamine and L-asparagine. Antibacterial activities of the compounds against S. aureus, Sh. dys. typ 7, L. monocytogenes 4b, E. coli, S. typhi H, S. epidermis, Br. abortus, M. luteus, B. cereus, P. putida, and antifungal activity against Candida albicans were studied. These compounds were investigated for antimutagenic properties against Aflatoxin BI (AFBI) using micronuclei (MN) assay in human lymphocyte cell culture in vitro. The protective role of these compounds against AFBI-induced MN is probably related to its doses.Gazi University Research FundGazi University [05/2010-03]is research was supported by the Gazi University Research Fund (Project number: 05/2010-03)
Isolation and Characterization of Rhizobium Strains from Wild Vetch Collected from High Altitudes in Erzurum-Turkey
WOS: 000275272200012Recently, there has been a growing level of interest in environmental friendly sustainable agricultural practices and organic farming systems. Increasing and extending the role of biofertilizers such as Rhizobium would decrease the need for chemical fertilizers and reduce adverse environmental effects. Thus, in the development and implementation of sustainable agriculture techniques, biofertilization is of big importance in alleviating the deterioration of natural and environmental pollution. Besides, the assessment of rhizobial genetic diversity is contributing both to the worldwide knowledge of the biodiversity of soil microorganisms and to the utility of rhizobial collections. Particularly, in the last decades, the use of molecular techniques has been contributed greatly to enhance the knowledge of rhizobial diversity. This study was conducted in order to determine the phenotypic and genotypic characterization of Rhizobium leguminosarum subsp. viciae strains that were isolaled from perennial wild vetch (Vicia cracca) collected from high attitudes (2000-2500 m) in mountains of Erzurum, Eastern Anatolia, Turkey. In this work, rep-PCR (ERIC-, REP- and BOX-PCR) fingerprinting method was used for the genotypic characterization of R. leguminosarum subsp. viciae strains isolated from perennial wild vetch. As a result, a high intraspecies diversity was observed in the rep-PCR (ERIC-, REP- and BOX-PCR) analysis with BOX, ERIC and REP primers between R. leguminosarum subsp. viciae strains
Risk assessment of petroleum transportation pipeline in some Turkish oil fields
This study concentrates on risk factors in oil field pipeline systems and covers identification of failure rate and reasons of failure comparison of the failure data, which are collected from oilfield pipeline systems located in South East Turkey. There are many methods and techniques to reduce or eliminate risk factors in pipeline systems. In this study, quantitative risk assessment method, which depends on statistical calculations, was applied. Monte Carlo Simulation was used to assess the risk in the system. This study focuses on identification of relationship between all parameters. History matching frequency, identification of critical factors, probability of density function have been estimated and calculated. The most significant failures are identified as corrosion, third party damage, mechanical failure, operational failure, weather effect and sabotage
Investigations of Listeria Species in Milk and Silage Produced in Burdur Province
WOS: 000281800200016The aim of this study was to investigate the presence of Listeria species in the milk and silage samples obtained from fifteen different farms in Burdur. A total of 250 samples (silage and cow's milk obtained from animals fed and not fed with silage) were analyzed. L. monocytogenes was isolated in 6 (2.4%) out of the 250 samples. Five (6.66%) of the 75 silage samples and 1 (1.17%) of the 85 milk samples obtained from cows fed with silage were contaminated with L. monocytogenes, whereas no Listeria spp. were isolated from the 90 milk samples from cows not fed with silage. The isolation of L. monocytogenes from milk and silage samples in Burdur indicates that these products could create a serious risk to the public health
A novel approach for detail surveys by the motorized GPSSIT concept in residentials areas and its application
This paper introduces the usage and reliability of Motorized GPSSIT technique which is a novel approach for surveying. It reviews the advantages of Motorized GPSSIT concept and also considers to provide GNSS accuracy in the process of surveying especially for the cases which cannot be surveyed directly by the satellite navigation systems (GPS-GNSS), such as closely packed residential areas, tall buildings, trees, etc., and also places which GNSS receivers cannot be work efficiently due to signal interferences. In this technique, all the survey instruments are installed on a bed of a pick-up truck whereas in present techniques they are installed on the ground, therefore it is called Motorized GPSSIT. Study area was chosen within the housing area of our campus. In this area, classical surveying, GPSSIT and Motorized GPSSIT were performed to collect data for comparison and for the analysis of this technique's usability and reliability. Stop and Go and RTK surveying techniques were performed with GPSSIT and Motorized GPSSIT concepts. It is shown that the Motorized GPSSIT technique is applicable as other present techniques in terms of accuracy and reliability
Synthesis, anti-microbial and anti-mutagenic activities of some Schiff bases derivatives containing thiophene group
WOS: 000493109500021The aim of this study is to investigate for the first time in vitro antimicrobial and antimutagenic activities of Schiff bases included the azomethine group. Antimutagenic activity was evaluated by micronucleus (MN) assay. These group have been examined for antibacterial activity against pathogenic strains, Staphylococcus aureus, Escherichia coli, Salmonella typhi H, Brucella abortus, Micrococcus luteus, Bacillus cereus, Pseudomonas aeroginosa and antifungal activity against Candida albicans and Saccharomyces cerevisiae. The results of MN showed that Schiff bases ( (E)-N-(4-chlorophenyl)-1-(5-nitrothiophen-2 -yl)methanimine ; (E)-N-(2,4-dichlorophenyl)-1-(5-nitrothiophen-2-yl) methanimine) different concentrations decreased the toxic effects of Aflatoxin B-1. Especially, high concentration (20 mu M) of (E)-N-(4-chlorophenyl)-1-(5-nitrothiophen-2-yl) methanimine (compound 1) has strong antimutagenic activity. In our in vitro test systems, it was observed that Schiff bases had antimutagenic effects on human lymphocytes. On the other hand these compounds were also found to possess antimicrobial activity against some test bacteria and yeast. The antimicrobial test results of these Schiff bases included the azomethine group exhibited better activity than some known antibiotics. In particular, Compound 1 were more potent bactericides than all of the substances synthesized. In conclusion, this Schiff bases included the azomethine group can be use pharmacy industries as recognized with their noncytotoxic, antimicrobial and antimutagenic features
Effects of rhizobium strains isolated from wild chickpeas on the growth and symbiotic performance of chickpeas (Cicer arietinum L.) under salt stress
WOS: 000282913200001This study was conducted in order to evaluate the symbiotic effectiveness of Rhizobium leguminosarum bv. ciceri strains isolated from perennial wild chickpeas (Cicer anatolicum) in comparison to standard bacterial culture, N application, and uninoculated control under NaCl salinity stress conditions. For this purpose, 4 strains (DN1, DN7, TN3, and TN4) were obtained from wild chickpeas. Chickpea (Cicer arietinum L.) seeds were inoculated with these strains and grown in pots containing sterile sand under different levels of NaCl (0, 50, and 100 mM) in a controlled plant growth cabinet. Dry weights of root and shoot, root-to-shoot ratio (RSR), number and dry weights of nodules, chlorophyll and N content of the plant, and amounts of total and fixed N decreased progressively with increasing salinity levels. In both non-saline and saline (50 and 100 mM NaCl) conditions, inoculations with Rhizobium leguminosarum by. ciceri strains isolated from wild chickpeas significantly increased all the above parameters compared-with the uninoculated control treatment, equal to or higher than standard culture and N application. However, chickpea rhizobia exhibited diversity in their salt tolerance. The plants inoculated with DN7, TN4, and standard culture produced more shoot mass, nodule dry weight, total N, and fixed N under saline conditions, especially at 50 mM NaCl, than the plants inoculated with DN1 and TN3. These results indicated that the ability of chickpea to grow and survive in saline conditions improved when it was inoculated with Rhizobium leguminosarum by. ciceri strains isolated from wild chickpeas, especially DN7 and TN4
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