Open Access Original Research Article

Technical Feasibility Study of the Use of Softwoods in Lattice Structure “Howe” Type for Roofing (Gaps between 8-18 Meters)

Gabriel Oberon Bertoldi Oliveira, Roberto Vasconcelos Pinheiro, Felipe Nascimento Arroyo, Diego Henrique de Almeida, Tiago Hendrigo de Almeida, Diogo Aparecido Lopes Silva, André Luis Christoforo, Francisco Antonio Rocco Lahr

Current Journal of Applied Science and Technology, Page 1-8
DOI: 10.9734/cjast/2019/v35i430188

Introduction: Wood is a material of biological origin widely used in construction, and its mechanical properties allow the material to form the lattice structure of roofs used in warehouses of industrial use, however, the paradigm as to the behaviour of the material makes the design decision less susceptible.

Aims: This work intends to verify the feasibility and optimize the use of unconventional wood in triangular roof truss structures in regions of flat topography, with a characteristic wind speed of 30 m/s.

Methods: The design methodology was fully based on the recommendations of ABNT NBR 7190

For the elements dimensioning, it was necessary to define the geometric and structural parameters that directly influence the actions and loads, as well as the behaviour of the structural elements.

Results: The choice of wood in this context, it was proposed the elaboration of projects of roofing structures with the following characteristics: "Howe" latticework (inclination of 10º - steel roof tile); Spans of 8, 10, 12, 14, 16 and 18 meters (ratio width: length, in plan, environment of 1: 3); Typology of the lateral openings of the building - (relationships between main opening area: other openings) 1:1, 2:1, 6:1 and insulated coverings (coverage on a medium of reduced dimensions).

Conclusion: The ratio of the volume of wood per floor area (m³.m-²) for C20 and C30 grade timber was determined, as well as the consumption of metallic pins per floor area, following the requirements of Brazilian standards, proving the technical feasibility.

Open Access Original Research Article

Effect of Farm Yard Manure and Nitrogen Application on Growth and Productivity of Wheat under Long Term Experimental Conditions

Kavinder ., V. S. Hooda, Yash Pal Malik, Devraj ., Harender ., Kavita .

Current Journal of Applied Science and Technology, Page 1-7
DOI: 10.9734/cjast/2019/v35i430189

To study the effect of farm yard manure (FYM) and nitrogen application on growth and productivity of wheat under long term experimental conditions a field experiment was conducted comprised of two level of FYM (0 and 15 t/ha) and three mode of application (kharif, rabi and both kharif and rabi) in main plots whereas two levels of nitrogen (0 and 120 kg/ha) in sub plot was laid out in split plot design with three replications. Plant height, dry matter accumulation, number of tillers/m2, yield (grain yield, straw yield and biological yield) and yield attributing characters, were significantly higher for FYM 15 t/ha was applied in both kharif and rabi season as compared to FYM at 15 t/ha applied either in rabi or kharif and control. Application of 120 kg N/ha significantly increased growth parameters, yield and yield attributes as compared to control. Application of 15 t/ha FYM along with 120 kg N/ha significantly improved the growth and yield of wheat.

Open Access Original Research Article

The Effects of Mulches on Tomato (Lycopersicon esculentum L.) in Respect of Yield Attribute in Ecosystem of Coastal Bengal

Prasenjit Kundu, Nayan Kishor Adhikary, Monidipta Saha, Abhijit Ghosal, Narayan Chandra Sahu

Current Journal of Applied Science and Technology, Page 1-8
DOI: 10.9734/cjast/2019/v35i430190

Mulching has become an important practice in modern field production. The use of mulches in vegetable production is undergoing a radical change away from high input, nonrenewable resources, such as plastic, to the use of high-residue organic mulches from cover crop. The purpose of this present study was to compare the growth and yield of tomato when grown under different organic and inorganic mulches. The experiment was conducted with four treatments in two consecutive years (2016-2017 and 2017-2018) at instructional farm of Sasya Shyamala Krishi Vigyan Kendra, Arapanch and different blocks of South 24 Parganas district. Among the treatments, maximum yield 60.3 t/ha and 58.7 t/ha were recorded under poly mulches in the consecutive years.

Open Access Original Research Article

A Two-stage Group Sampling Plan Based on Truncated Life Tests for an Odd Generalized Exponential Log-logistic Distribution

D. C. U. Sivakumar, G. Srinivasa Rao, K. Rosaiah, K. Kalyani

Current Journal of Applied Science and Technology, Page 1-14
DOI: 10.9734/cjast/2019/v35i430191

In this article, a time truncated life test based on two-stage group acceptance sampling plan is proposed for lifetime of an item follows odd generalized exponential log-logistic distribution (OGELLD). The ability about the lot acceptance can be made in the first or second stage according to the number of failures from each group. The optimal parameters for the proposed plan are determined such that both producer’s as well as consumer’s risks are contented simultaneously for the specified unreliability when group size and test duration are specified. The efficiency of the proposed sampling plan is evaluated in terms of average sample number with the existing sampling plan. The results are explained with the help of industrial example.  Using exploratory data analysis and then goodness-of-fit, we show a rough indication of the goodness of fit for our model by plotting the superimposed for the data shows that the OGELLD is a good fit and also it is emphasized with Q-Q plot, displayed in Fig. 1. We observed from the tables / results that the number of groups required decrease as the group size increases from  and also the ASN increases marginally, sample size decreases as the group size increases, which indicates that a larger group size may be more economical and it reduces the experimental time and cost. We proposed two-stage group acceptance sampling plan, since it performs much better in terms of the average sample number (ASN) and the operating characteristics than in single-stage group acceptance sampling plan. The advantage of two stage group sampling plan is that it reduces the average sample number (ASN) as compared to the GASP.

Open Access Original Research Article

The Predictive Influence of Demographic and Personality Traits on Risky Driving Behaviour among Traffic Offenders in Osun State, Nigeria

R. J. Akinniyi, E. O. Akinnawo, B. C. Akpunne, J. T. Oyeleke

Current Journal of Applied Science and Technology, Page 1-12
DOI: 10.9734/cjast/2019/v35i430192

Aim: Accidents are a common phenomenon on Nigerian roads and are attributed to individual, environmental and contextual factors such as excessive speeding, disobeying traffic laws, aggressive driving among others. This study investigated the predictive influence of demographic and personality traits on risky driving behaviour among traffic offenders in Osun state, Nigeria.

Study Design: Cross-sectional survey design.

Place of Study: Federal Road Safety Commission office and Redeemer’s University Osun State, South western Nigeria.

Methodology: Two hundred and eighty three (283) traffic offenders were selected through systematic sampling technique from the population of traffic offenders docked by Traffic offenders Tribunal and formally screened using Driving Behaviour Survey (DBS) and Big-five Personality Inventory (BFI). Descriptive and inferential statistics was used for data analysis.

Results:  Personality traits jointly predicted risky driving behaviour. Extraversion, agreeableness, conscientiousness, and openness to experience significantly independently predicted driving. Extraversion, agreeableness, conscientiousness, neuroticism and openness to experiences jointly predicted anxiety based performance, exaggerated safety caution behaviour, and hostile aggressive behaviour. Demographics variable were observed to be weak predictors of risky driving behaviour among the traffic offenders.

Conclusion: There was high incidence of risky driving behavior among traffic offenders; extraversion, agreeableness conscientiousness and openness to experience were factors predicting risky driving behavior. The study recommends psychological assessment for traffic offenders and applicants of driver’s license.

Open Access Original Research Article

Parkia biglobosa (African Locust Bean) Pulp as a Green Inhibitor for Mild Steel Corrosion

O. M. Myina, E. G. Obed, E. O. Babatunde

Current Journal of Applied Science and Technology, Page 1-11
DOI: 10.9734/cjast/2019/v35i430193

This work investigated corrosion inhibition potential of Parkia biglobosa (P. biglobosa) pulp on mild steel in 1.0 M HCl and 0.1M NaOH aqueous solutions at 301 and 321 K, aimed at converting a cellulosic renewable waste into an environmentally friendly answer to the challenge of mild steel corrosion, especially in chemical industries. Weight loss of mild steel coupons over a period of 120 hrs. were measured at varying concentrations (0.0-7.5 g/L) of P. biglobosa pulp. The data did not strictly fit the Langmuir isotherm, having a slope greater than unity and suggesting that adsorbing species from P. biglobosa pulp occupied more than one active site. This was collaborated by the quantum chemical parameters evaluated. Results of the investigations showed that P. biglobosa pulp is a good green inhibitor for mild steel corrosion in both acidic and alkaline media. An optimum dosage of 4.5 g/L resulted to 85.73 % inhibition efficiency () at 301 K while at 321 K, the optimum dosage was 1.0 g/L of the pulp with an inhibition efficiency ≈ 50 % and 55 % in the acidic and alkaline medium respectively. The  values decreased with increase in temperature and were strongly collaborated by values (- 0.86 Lcm-2h-1 at 301 K and - 0.498/0.55 Lcm-2h-1 at 321 K) of order (b) of the reaction. The corrosion reaction showed a large rate constant ( and  in acidic and alkaline medium respectively) at ambient temperature; reflecting the fast nature of the process. Values of the standard free energy of adsorption () were negative for the process both at ambient and elevated temperature indicative of a spontaneous process and stable layer of adsorption. These values were less than – 40 kJmol-1, suggestive of a physisorption mechanism. This was collaborated by higher adsorption activation energy () in presence of the inhibitor than in its absence.

Open Access Original Research Article

Water Requirement of Solanaceous Vegetable Crops in Kashmir Valley

Latief Ahmad, Sameera Qayoom, Baseerat Afroza, Owais A. Bhat, Nighat Mushtaq

Current Journal of Applied Science and Technology, Page 1-7
DOI: 10.9734/cjast/2019/v35i430195

Studies on water balance and irrigation at agricultural areas require accurate values of reference evapotranspiration. The values obtained can help farmers to determine the water requirement of these vegetable crops so that proper irrigation can be applied according to its growth stage and weather condition. The objective of this study was to calculate water requirements for four Solanaceous vegetable crops: Tomato, Potato, Chilli and Brinjal grown in temperate conditions of Kashmir Valley. Water requirements were calculated using the FAO-56 Penman-Monteith Method. The total water requirement for tomato, potato, chilli and brinjal was found 458 mm, 286 mm, 343 mm and 410 mm respectively. The maximum water was required by all crops during the mid-season stage comprising nearly 45-60% of the total water requirement of the crop.

Open Access Review Article

Micronutrient Biofortification in Pulses: An Agricultural Approach

Ananya Ghosh, Md. Hasim Reja, Arpita Nalia, Sahely Kanthal, Srijani Maji, Visha Kumari Venugopalan, Rajib Nath

Current Journal of Applied Science and Technology, Page 1-12
DOI: 10.9734/cjast/2019/v35i430194

Micronutrients are important growth promoting elements not only for crops but also for human being. More than two billion of the global populations are malnourished. For developing countries like India, micronutrient malnutrition among the people of every age is very common. The impact is highly seen in poor and landless rural people who can’t afford diverse foods or supplements in their diets with needed nutrients. To alleviate this micronutrient deficiency, biofortification has come to the surface as a potent option. Biofortification of crops can increase the level of micronutrients in final food products. Pulses are the cheapest sources of proteins, vitamins and micronutrients and can be supplied to the people through daily diet. Pulses are irrefutable contender for Biofortification since it is easily available to the each and every group of people. This paper focuses on the role of micronutrients on human health and various mechanisms to get nutrient rich staple food along with main emphasis on biofortification.