Dynamic Analysis of UAV’s Motor Support Bar Length Control System

UAV (Unmanned Aerial Vehicle) can be described as aircraft that do not need any presence of pilots inside it. Basically, UAV is come out in a small aircraft sothat the aircraft can be easily controlled by the people from afar[1]. The UAV’s motor support bar length control systems are the UAV’s control systems that move according to the variable arm length movement and also a constant revolution of the propeller speeds. The purpose of the study is to run the dynamic analysis at the UAV’s motor support bar length control systems and also to enhance the UAV’s mathematical modellingby using the SOLIDWORKS®software which involved in using both CAD and CAE systems[2]. The detaileddesign is used SOLIDWORKS®software to conduct the static and dynamic analysis of UAV’s motor support bar length control systems. The design is restricted to the arm due to the critical part that has the highest vibration at the UAV’s motor support bar length control systems. The results that obtain from the study from the static and dynamic analysis are the displacement of the motor, Von Misses stress of the arm, and also the resonance frequency that will give the modes shape to the systems

Future Community-Based Ecotourism (CBET) development

Ecotourism is an alternative form of tourism and is usually confused with natural and cultural tourism.CBET is fast becoming a popular biodiversity conservation tool that develops and benefits the local community. Based on the context of conservation theory and practice, Community-Based Ecotourism (CBET) is a form of community-based natural resource management. However, a sustainable CBET development through Community Capacity Building (CCB)programs is not something that it easily achievable. Local community’s capacity varies from one culture to another. It takes a high level of community participation, in order for it to come to a level where the community members themselves are motivated to participate and contribute to the development of the program. This fully qualitative research involved 15 respondents from the community of Kg. Selai, Bekok in Johor, Malaysia. The result show there are five factors that sustained the ecotourism development based for Orang Asli Community in Kg. Selai, namely, existing CBET development, past CBET development, local community participation in planning stage of tourism, local participation in implementation stage of tourism and participation in nature conservation

Febrile seizures: Factors affecting risk of recurrence in Pakistani children presenting at the Aga Khan University Hospital

Objectives: To (a) describe the effect of temperature rise on seizure recurrence in the ER (b) investigate the effect of age, gender, family and developmental history, type, duration and multiple seizures, past history and number of seizures and treatment given (either late or early) on seizure recurrence in the ER and (c) explore prognostic indicators for seizure recurrence.Methods: Data from 352 children [ages 3-84 months; 220 males (62.5%) 132 females (37.5%)] was taken using chart reviews for the years January 1998-August 2000 inclusive, from the Pediatric department of the Aga Khan University Hospital. Descriptive statistics, Chi-square, and Discriminant Analysis were used.Results: Of the 52 (16%) cases that had seizure recurrence in the ER, majority (36.5%) occurred in \u3e 38.5 degrees \u3c or = 39.5 degrees C temperature range. The percentage declined to 15% at higher temperatures. Bivariate tests showed that age, family and developmental history, type of seizure and treatment given did not affect seizure recurrence in the ER. Past history number of seizures (p = .006), duration of seizure (p \u3c 0.001), past history of seizures (p = 0.004) and multiple seizure (p = 0.024) were factors significantly associated with seizure recurrence in the ER at the bivariate level of analysis. Duration of seizure was the most important prognostic indicator for FS recurrence in the ER at the multivariate level with beta = .79.Conclusion: Duration of seizure (\u3e 5 minutes) was the most important prognostic factor for FS recurrence. Early treatment did not affect recurrence,suggesting timely anti-pyretic vs. anti-leptic medication use

The Flouting of Maxim in the Se7en Movie Script

This research focused on analyzing flouting of maxims that were flouted by the characters in the Se7en movie script and the motivation of the characters flouted the maxims. This research used qualitative research method. The data of the research were in the form of utterances that contained flouting of maxim. The data were collected by downloading the movie and the script, watching the movie, and collecting the data from the script. The data analysis was conducted by organizing the data into narration, analyzing the data, and drawing the conclusion. The results of the research showed what types of maxim were flouted in the movie and what motivation that led the characters to flout the maxims. There are four flouting of maxims in the Se7en movie script; they are maxim of quantity maxim of quality, maxim of relevance, and maxim of manner. Then, there are three motivations that influenced the characters flouted the maxims; they are competitive, collaborative, and conflictive

A Numerical Algorithm for Solving Stiff Ordinary Differential Equations

An advanced method using block backward differentiation formula (BBDF) is introduced with efficient strategy in choosing the step size and order of the method. Variable step and variable order block backward differentiation formula (VSVO-BBDF) approach is applied throughout the numerical computation.The stability regions of the VSVO-BBDFmethod are investigated and presented in distinct graphs.The improved performances in terms of accuracy and computation time are presented in the numerical results with different sets of test problems. Comparisons are made between the proposed method and MATLAB’s suite of ordinary differential equations (ODEs) solvers, namely, ode15s and ode23s

An experimental study of welded bar sleeve wall panel connection under tensile, shear, and flexural loads

This paper presents an experimental study of a new grouted splice connection for wall panels, called Welded Bar Sleeve (WBS). The connections were made from steel pipes and tested with incremental tensile, shear and flexural loads until failure. The aim is to determine the behaviour of the connection under the three load cases. For this, the connections are evaluated in terms of the load–displacement responses, ultimate capacities, ductility responses and some feasibility assessment criteria. WBS was found to provide sufficient strength at the bar embedded length of 8, 8 and 11 times the bar diameter under tensile, shear and flexural loads, respectively. It is effective under tension, but could only service up to 1/3 of its ultimate shear capacity. Flexural load is the most critical load case for the connection. For this, further enhancements are required when subjected to shear and flexural loads

Assessment of Heavy Metals Uptake by Vegetables Cultivated on Soil Receiving Industrial Wastewater in Minna, Nigeria

Consumption of vegetable crops grown on soil irrigated with industrial wastewater has been the order of the day in most urban towns and cities of Nigeria, despite reports of its serious health impact. This study assessed the possibility of uptake of heavy metals by crops grown on soil receiving industrial wastewater during rainy and dry seasons. The crops investigated are Spinach, Cayenne Pepper, Jute mallow, roselle and lady’s fingers okra. The initial composition of the wastewater was analyzed to contain 0.89 mg/l of chromium, 0.74 mg/l of cadmium, 1.04 mg/l of copper and 2.81 mg/l of iron. Control water used for this experiment contain no trace of any of these heavy metals. The experimental soil was also analyzed and contained 0.10 mg/kg of chromium, 0.06 mg/kg of iron before irrigation in dry season. After irrigation at the wastewater plots, the heavy metal concentrations in soil had increased to 6.24 mg/kg of chromium and 7.50 mg/kg of iron. In wet season, the concentrations of heavy metals in the soil were 0.00 mg/kg of chromium and 2.32 mg/kg of iron before irrigation. After irrigation in wet season, the concentrations increased to 6.01 mg/kg of iron. Mean difference of heavy metal concentrations were significantly high in vegetables in dry season, with values ranging from 0.03 mg/kg to 211mg/kg in wastewater plots, 0.20 mg/kg to 215 mg/kg in wet seasons wastewater plots, 0.00 mg/kg to 157 mg/kg in dry season. It is however recommended that consumption of vegetables irrigated with domestic/industrial wastewater be strongly discouraged because of its serious health implications.&nbsp

The Relationship Between Non-cellulosic Content with Fiber and Yarn Properties

Abstract: This investigation was carried out at Cotton Res. Inst., Agric. Res-Center, Giza, Egypt to evaluate the relationship between non-cellulosic content to fiber and yarn properties for some Egyptian cotton cultivars i.e., Giza 45, Giza 70, Giza 86 and 80. Four lint grades i.e., fully good (FG), good (G), fully good fair (FGF) and good fair to fully good fair (GF/FGF) were used. Physical and chemical fiber properties were estimated as well as yarn properties. For determining the relations between the above properties, simple correlation, as well as the regression equations was established. The results showed that there were a highly negative correlation between micronaire value, fibers strength (g/tex), maturity ratio, lea product and single yarn strength (cN/tex) with non-cellulosic content (%). Whereas, the correlation between yellowness degree (+b) and yarn evenness CV % with non-cellulosic were a positive direction. The fiber maturity (%), miconaire reading, fineness (millitex), strength (g/tex), upper half mean (UHM), uniformity index (UI), (Rd %), cellulosic content (%), lea product and single yarn strength (cN/tex) were increased as the lint grade increased to fully good, (FG). While, yellowness degree, (+b) and yarn evenness CV % were decreased by increasing the lint grade