Physical Sciences and Engineering

We show results from b-learning strategy used to teach volume concept in high school for several geometric figure. We applied a conceptual volume test (pretest) and we found that high percentage of students had several misconception and low knowledge about prism and pyramids. We work with a control group (traditional) and, experimental group (b-learning); this methodology includes conceptual activities and use of Khan academy tool. Population was 50 students divided in two similar groups; distinction gender was no made.

Orange fruits are acidic fruit which contain healthy nutritional content that works wonders for the body. It acts as a fabulous source of vitamin c and a wide variety of essential nutrients required by the body.

Considerando o processo de informatização das organizações e a exigência de que o serviço público se alinhe a esta realidade, surge a necessidade de analisar a importância do uso de ferramentas de apoio pelos gestores. A revisão da literatura ocupa posição introdutória no desenvolvimento de um projeto de conhecimento das produções científicas acumuladas sobre o tema.

The Northern coastal lakes in the Nile Delta of Egypt which have an ecosystem of distinctive nature is facing several problems which threaten, There are two main problems facing the coastal region of the delta, The first one is the erosion due to dynamic effects and reduction in sediment transport, the northern lakes connected to the Mediterranean Sea severely suffer from pollution due to dumping wastewater from agricultural, municipal as well as industrial origin into the lake. Hydrodynamic modeling is an essential tool to simulate the combined effect of these physical factors.

In this age of science and Technology, mathematics now dominates almost every field of one’s activities. It has permeated through the human life in such a way that, it has now become every man’s everyday concern. Elementary education grooms students to become competent in every aspects of life. India has made a significant investment in its education. Again RTE 2009 guarantees quality mathematics education at elementary level.

This research explores the basics of SDI, and investigates the National SDI of different countries. Further, the research analyses SDI implementation in developing country with specific reference to the National Geospatial Data Infrastructure (NGDI) of Nigeria. The research assesses the status and the milestones of NGDI implementation using key SDI components as assessment variables. These components were grouped into four classes: Policy and Legal Issues, Technical, Funding and People.

The goal of this work is to reveal factors which control Baoulé-Est gold occurrence. Gold traps which have been extracting from structural support have been tested by a variogram with the goal to find expect mineralized axis. Rocks with good grade and geochemistry anomalies have been inserted with the goal to find mineralized axis. Mineralized axis characteristics have led to elaborate mineralization hypothesis. Gold traps are plutonic nearbourgh quartz veins and N60°, N160°, NS faults zones junctions. N30° is the like trend of gold traps.

Energy consumption index is one of the most important criteria for judging about new, and emerging drying technologies. Electrohydrodynamic (EHD) drying is a novel method of non-thermal processing. The drying can be carried out using either AC or DC high voltages. The thermodynamic considerations regarding the lowering of temperature under EHD drying include rapid rates of evaporation and exothermic interaction of the electric field with a dielectric material. Multi-point and plate electrode systems are efficient in accelerating drying of agricultural materials.

RFID stands for Radio Frequency Identification. It refers to technologies that use radio waves to identify objects, animals, or people. Due to its low energy consumption and adaptability to different environments, RFID has found applications in many fields. This paper describes the basics of RFID technology, its applications, and the challenges it faces.

Spectroscopic analysis was used to study the effect of the interaction of egg albumin with amantadine in SPAN-40 solution. Protein binding properties of Egg albumin-amantadine complex were investigated by fluorescence spectroscopic technique. From the fluorescence spectral data stern-volmer quenching constant and the quenching rate constant have been calculated and reported. Other constants calculated for the surfactant SPAN 40 micelle were aggregation number, radius, surface area per head group and packing parameter.