Volume 9 | Issue 4 |

 Abstract

A detailed review of the current state-of-art for wind turbine blade design is presented, including theoretical maximum efficiency, propulsion, practical efficiency, HAWT blade design, and blade loads. The review provides a complete picture of wind turbine blade design and shows the dominance of modern turbines almost exclusive use of horizontal axis rotors. The aerodynamic design principles for a modern wind turbine blade are detailed, including blade plan shape/quantity, aerofoil selection and optimal attack angles. A detailed review of design loads on wind turbine blades is offered, describing aerodynamic, gravitational, centrifugal, gyroscopic and operational conditions.

Licence: creative commons attribution 4.0

  License

Creative Commons Attribution 4.0 and The Open Definition

 Keywords

wind turbine; blade design; Betz limit; blade loads; aerodynamic

  License

Creative Commons Attribution 4.0 and The Open Definition

 Abstract

The purpose of acid etching is to remove the smear layer and create a rough surface by mixing hydroxyapatite crystals on the outer surface. This topography will facilitate penetration of the fluid adhesive components into the depressions created; hence the adhesive gets locked into the surface and contributes to micromechanical retention. If a laser can achieve the above-mentioned function of acid etching, and even produce a desirable surface for bonding to a restorative material, it may be a viable alternative to acid etching. The purpose of this study was to compare the bond strengths after acid etching with conventional primers, acid etching with moisture insensitive primers, laser etchants with conventional primers and laser etchants with moisture insensitive primers

Licence: creative commons attribution 4.0

  License

Creative Commons Attribution 4.0 and The Open Definition

 Keywords

Acid etching, laser etching, moisture insensitive primers

  License

Creative Commons Attribution 4.0 and The Open Definition

 Abstract

Pityriasis alba is a common fungal infection of the skin in tropical region. The characteristic lesions are small yellowish-brown macules. These slowly blend to from large disfiguring area. Concomitant hypopigmentation is usual. Most of us get confused in diagnosing pityriasis in an initial year of practice and thus we need to know the differentiating characteristics of condition. However, treatment can be possible of the homoeopathic medicine through proper repertorization and totality of symptom. A 14-year boy came to OPD with complaint of white rounded patch on right cheek and forehead from last 3 months. Appearance of the patches are lighter than the surrounding skin. Headache aggravate from heat of sun and ameliorate from cold things.

Licence: creative commons attribution 4.0

  License

Creative Commons Attribution 4.0 and The Open Definition

 Keywords

: Homoeopathy, pityriasis alba, white pigmentation, constitutional homoeopathic medicine, natrium muriaticum, synthesis repertory radar 10

  License

Creative Commons Attribution 4.0 and The Open Definition

 Abstract

: The trustworthiness of digital images is a significant concern since images can be created easily as a outcome of the excessive schedule of advanced image forgery devices. Thus advanced image authentication is necessary as well as it is the contemporary research study area which expects to confirm the credibility of digital images. This study tries to provide a recap of countless advaced image imitations as well as passive techniques to confirm digital images. This study tries to cover the blind methods that have actually been recommended for subjecting bogus. This job emphasizes the detection methods for recolouring the image, minor changes in the image and any other forgery works

Licence: creative commons attribution 4.0

  License

Creative Commons Attribution 4.0 and The Open Definition

 Keywords

: Digital image, Image authentication, Image forger

  License

Creative Commons Attribution 4.0 and The Open Definition

 Abstract

This study is a theoretical paper aimed at looking at issues, challenges and the way forward concerning agricultural development and employment generation in Nigeria. Nigeria as an economy is endowed with too many resources both human and natural. Yet there is still threat of poverty, starvation, insecurity and unemployment. The unemployment rate is so alarming that between the periods of 2010 and 2019 the rate stood at 5% and 23.1% and a projected 33.5 in 2020. This is a worrisome status as Nigeria serves as the global poverty capital with the incidences of high prevalence of crime rate, murders, kidnappings, militancy, armed robbery, drug abuse and many other vices. To combat this menace calls for urgent attention. It is in the light of the above this study is carried out to access the level of development in the agricultural sector and unraveling the potentials and capacity of the Nigeria agricultural sector if properly developed in generating jobs for the millions of people (Nigerians) without jobs. However, in the course of this study, poor agricultural funding, poor and lack of farm inputs, inconsistent and no sustained policy and programmes for the sector, lukewarm and lackadaisical attitude of political leaders and neglect of agricultural research institutes are seen as some major issues hampering the development of the agricultural sector in Nigeria, Furthermore, the study revealed that the agricultural sector is the most critical sector that has the potential to industrialize Nigeria, reduce poverty, increase food security and create jobs for the massive unemployed population. The study concludes that the development of agricultural sector is still at its infant age despite the numerous policy efforts of successive government to develop the sector. Therefore, it is suggest that the only way forward for Nigeria agricultural sector to drive industrialization, guarantee food security and employment generation is by total and massive investment in the sector, budgetary allocation to the sector should be increased by 10% to meet 2003 African Union Summit in Maputo and the right policy and programmes put in place, sustained and managed by patriotic states men and women for the benefit of all.

Licence: creative commons attribution 4.0

  License

Creative Commons Attribution 4.0 and The Open Definition

 Keywords

Agricultural Development, Budget Allocation, Employment Generation, Nigeria

  License

Creative Commons Attribution 4.0 and The Open Definition

 Abstract

The problems which are related to our basic needs may be common. But certain problems are specific to ageing. But while ageing has a charming beginning in the form of development (i.e. growth and differentiation), it has a dismal end marked by senescence, loss of adaptability of the organism to its extrinsic and intrinsic environments, decrepitude and ultimately the macabre death.

Licence: creative commons attribution 4.0

  License

Creative Commons Attribution 4.0 and The Open Definition

 Keywords

Adaptability, Development, Organism

  License

Creative Commons Attribution 4.0 and The Open Definition

 Abstract

The purpose of this paper to introduce a new class of continuous functions like GPR- compactness functions and study some of their properties.

Licence: creative commons attribution 4.0

  License

Creative Commons Attribution 4.0 and The Open Definition

 Keywords

GPR-continuity, gpr-continuity, gpr-continuous, ect.

  License

Creative Commons Attribution 4.0 and The Open Definition

 Abstract

Wireless location is defenceless to malevolent assault owing to the scenery of its unlocking intermediate. These lessons propose an attack-resistant fingerprinting localization algorithm bottom on a probabilistic comprehensive disjunction representation. This representation allows an assault surveillance to play a fewer momentous role throughout the localization procedure, thus attain additional healthy position opinion beneath safety intimidation. This learns built-in experiment conduct in a real Wi-Fi system. Untried consequences well-known that this move toward them says that achieve more robust judgment than cluster-based, median-based, and sensor-selection technique beneath a mixture of show aggression on RSS.

Licence: creative commons attribution 4.0

  License

Creative Commons Attribution 4.0 and The Open Definition

 Keywords

Soil moisture, Water wastage, temperature, water pump.

  License

Creative Commons Attribution 4.0 and The Open Definition

 Abstract

Licence: creative commons attribution 4.0

  License

Creative Commons Attribution 4.0 and The Open Definition

 Keywords

IR transmitter, Receiver circuit, Control Unit, Solenoid Valve.

  License

Creative Commons Attribution 4.0 and The Open Definition

 Abstract

The effect of doses of black pepper, black cumin, garlic and methi powder against pulse beetle and recorded the highest adult mortality (83%), lowest number of eggs (42%), numbers of adult emergence (11.11%) and amount of weight loss (29.00 %) when gram seeds were treated with black pepper powder at 1.00 g/kg. The efficacy of four plant extracts viz., Clove, Sehjan, Ajwain and Ginger against Fusarium solani at 10%, 25% and 50% concentrations. Among all four plant extracts tested, Clove was found to be most effective against Fusarium solani on Third, Fifth and Seventh day at 50% concentration and conquered the colony growth by 100% compared to control. Different bacterial species and the amount of clove oil used and observed that Ralstonia solanacearum was the most sensitive when 50 ?l of clove oil was used in our agar diffusion assay. Tomato and Geranium plants grown in R. solanacearum-infested soils pre-treated with 0.5% clove oil were significantly taller and produced significantly more root and above-ground plant tissues than their untreated control. Geranium plants grown in R. solanacearum-infested soils treated with 0.5% clove oil produced similar number of flowering stalks to those in bacterium-free soil with or without clove oil treatment.

Licence: creative commons attribution 4.0

  License

Creative Commons Attribution 4.0 and The Open Definition

 Keywords

Pulse beetle, Fusarium Solani, Ralstonia solanacearum and Mortality

  License

Creative Commons Attribution 4.0 and The Open Definition