The effects of mineral and liquid organic fertilizers on some nutritional characteristics of bell pepper

The economical effect of liquid organic fertilizer on agriculture may be a factor in the extension of its practice in larger areas. The rates of compost required to supply sufficient N requirements might be economically challenging for farmers. Therefore, the organic liquid fertilizers might help in reducing the need of high rates of compost to maintain proper N amount and in reducing the expenses. The objective of this study was to investigate the effects of mineral and liquid organic fertilizers on some nutritional characteristics of bell pepper. Results show that the main effects and interaction between cultivars and fertilizers were not statistically singificant on the subject parameters in this experiment. However, the application of mineral fertilizer resulted in the highest ascorbic acid content in fresh fruits (110.07 mg 100 g-1). In comparison with liquid organic fertilizers, mineral fertilizer had higher levels in other parameters such as lipids (8.16 g 100 g-1), fruit dry matter (13.39 g 100 g-1), K (18.5 g kg-1), Ca (0.83 g kg-1), Mg (0.98 g kg-1), Mn (7.9 mg kg-1) and S (0.21 mg kg-1). Ascorbic acid, protein and dry matter content were affected by the colour of fruit. Also, a higher ascorbic acid and Ca, acorbic acid and Mg, lipid and Ca contents suggest a positive correlation between these parameters. However mineral fertilizers had more favorable effects on quality of bell pepper, our results indicated that liquid organic fertilizers might be considered sufficient as a source of nutrients in organic growing.Key words: Bell pepper, liquid organic fertilizer, quality, mineral fertilizer, ascorbic acid, mineral content

Characteristics of Civil Defense Search and Rescue Units, Turkey, 2008-2009

Background Search and rescue (SAR) is a component of emergency and disaster response. SAR teams are limited in number; thus, collecting information on their characteristics may facilitate the establishment of mutual agreement protocols between countries. The objective of this study was to evaluate the characteristics of the Turkish Civil Defense SAR Units. Methods This descriptive study was conducted in 11 provinces of Turkey from July 2008 to October 2009. Interviews, observations and records were used to gather data, and descriptive statistics are presented. To evaluate the adequacy of personnel and equipment, a Likert-type scoring system was used (0-4 points). Results The size and population density of regions served by SAR Units varied. The mean duration of ground transportation from SAR Unit bases to the furthest provinces in their regions was 4.0±1.2 hours. The mean gathering and loading times were 70.5±42.3 and 48.6±18.0 minutes, respectively. The total employment ratio was 55.6%. The surface and underwater rescue section showed the highest functional sufficiency (3.3±0.7). The mean value for adequacy of SAR equipment was 2.6. Deficiencies were identified in periodic medical check-ups, preventive health measures and after-mission medical examinations for the personnel. Conclusion There is a need for standardization and improvement in various characteristics of SAR Units

Effect of imperfect flat earth on the vertically polarized radiation of a cylindrical reflector antenna

Cataloged from PDF version of article.The radiation of a circular cylindrical reflector antenna in the presence of imperfect flat earth is treated in an accurate manner. The boundary value problem is formulated in terms of a full-wave integral equation converted to the dual-series equations and then regularized by using analytical inversion of the static part. The resulting Fredholm second-kind matrix equation is solved numerically with guaranteed accuracy. The feed directivity is included in the analysis by using the complex source-point method. Various antenna features, which include the overall directivity, efficiency, gain, and radiated and absorbed power fractions have been calculated and compared with the free-space antenna characteristics. They show some phenomena not predicted by approximate techniques

Closed-Form Green's Function Representations in Cylindrically Stratified Media for Method of Moments Applications

Cataloged from PDF version of article.Closed-form Green's function (CFGF) representations for cylindrically stratified media, which can be used as the kernel of an electric field integral equation, are developed. The developed CFGF representations can safely be used in a method of moments solution procedure, as they are valid for almost all possible source and field points that lie on the same radial distance from the axis of the cylinder (such as the air-dielectric and dielectric-dielectric interfaces) including the axial line (ρ = ρ′ and φ = φ′), which has not been available before. In the course of obtaining these expressions, the conventional spectral domain Green's function representations are rewritten in a different form so that i) we can attack the axial line problem and ii) the method can handle electrically large cylinders. Available acceleration techniques that exist in the literature are implemented to perform the summation over the cylindrical eigenmodes efficiently. Lastly, the resulting expressions are transformed to the spatial domain using the discrete complex image method with the help of the generalized pencil of function method, where a modified two-level approach is used. Numerical results are presented in the form of mutual coupling between two current modes to assess the accuracy of the final spatial domain CFGF representations. © 2009 IEE

Complex source radiation in a cylindrical radome of metal-dielectric grating

Cataloged from PDF version of article.The radiation fields of a line source enclosed in a circular dielectric radome with grating consisting of an array of thin lossy metal strips are analyzed. The variations of the directivity of the source beam with respect to the beam direction are studied. The possibility of damping these variations by an appropriate design of the radome is demonstrated

Computer aided frequency planning for the radio and tv broadcasts

Cataloged from PDF version of article.The frequency planning of the VHF and UHF broadcasts in Turkey is described. This planning is done with the aid of computer databases and digital terrain map. The frequency offset is applied whenever applicable to increase the channel capacity. The offset assignment is done through Simulated Annealing algorithm. The international rules and regulations concerning Turkey are also considered

Dynamics of Entanglement and Bell-nonlocality for Two Stochastic Qubits with Dipole-Dipole Interaction

We have studied the analytical dynamics of Bell nonlocality as measured by CHSH inequality and entanglement as measured by concurrence for two noisy qubits that have dipole-dipole interaction. The nonlocal entanglement created by the dipole-dipole interaction is found to be protected from sudden death for certain initial states

The role of tool geometry in process damped milling

The complex interaction between machining structural systems and the cutting process results in machining instability, so called chatter. In some milling scenarios, process damping is a useful phenomenon that can be exploited to mitigate chatter and hence improve productivity. In the present study, experiments are performed to evaluate the performance of process damped milling considering different tool geometries (edge radius, rake and relief angles and variable helix/pitch). The results clearly indicate that variable helix/pitch angles most significantly increase process damping performance. Additionally, increased cutting edge radius moderately improves process damping performance, while rake and relief angles have a smaller and closely coupled effect

The evolution of bits and bottlenecks in a scientific workflow trying to keep up with technology: Accelerating 4D image segmentation applied to nasa data

In 2016, a team of earth scientists directly engaged a team of computer scientists to identify cyberinfrastructure (CI) approaches that would speed up an earth science workflow. This paper describes the evolution of that workflow as the two teams bridged CI and an image segmentation algorithm to do large scale earth science research. The Pacific Research Platform (PRP) and The Cognitive Hardware and Software Ecosystem Community Infrastructure (CHASE-CI) resources were used to significantly decreased the earth science workflow's wall-clock time from 19.5 days to 53 minutes. The improvement in wall-clock time comes from the use of network appliances, improved image segmentation, deployment of a containerized workflow, and the increase in CI experience and training for the earth scientists. This paper presents a description of the evolving innovations used to improve the workflow, bottlenecks identified within each workflow version, and improvements made within each version of the workflow, over a three-year time period