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This paper describes the study of coefficient of thermal expansion (CTE) of as-cast and heat treated aluminium 7075 alloys. These alloys were subjected to different aging durations. The stir casting technique is used to prepare the specimens. These specimens were machined in accordance with ASTM standards followed by heat treatment process. All the specimens were aged to different periods of 1hr, 3hr, 5hr at an aging temperature of 175 oC. Coefficient of thermal expansion tests were performed in both as-cast and heat treated conditions. In each case the coefficient of thermal expansion values were found to increase with increase in aging durations. Solution heat treatment at 530 oC followed by artificial aging at 175 oC found to increase in dimension change of every specimen tested. The coefficient of thermal expansion curves exhibited some residual strains, which were decreased with the increase in aging durations.

This paper investigated the hedonic analysis of consumers’ preference on the cowpea in the Ibadan metropolis. 100 cowpea sellers were selected by a purposive random sampling technique in five major markets in Ibadan.79% of the respondents were female while the rest 21% of them were male. 89% of the respondents sell a combination of varieties i.e. Peu/Drum, Sokoto, Mala, Olo and Oloyin for their nutritive value, popularity and availability which may be used for boiled whole grain cooking, fried cowpea balls (akara), and steamed cowpea cake (moin-moin). 75% of the respondents do not use any chemical to store cowpea grains.Also, analysis of Covariance model which was used capture price-quality relationship of the type of cowpea purchased by consumers revealed that there is a significant relationship between the number of holes in each of the cowpea varieties and their respective prices in the various markets sampled in the study area. Hence, the numbers of holes appear to be the major determining factors affecting the prices of various cowpea types in the study area.

Wetlands are one of the most important aquatic ecosystems that play a significant role in modifying the quantity and quality of water, providing economic and tourist opportunities as well as drinking water and livelihood for aboriginal people. Establishing and maintaining a suitable water regime as well as wise use of wetland ecosystems in such a way to preserve their functions and values are considered as the most important management issues in wetlands. The basin of the Parishan International Wetland is located between 51° and 44' and 51° and 51' of east longitude and 29° and 32' and 30'' of north latitude of Fars province. The purpose of this study was to evaluate the hydrology and determine the environmental abonne of Parishan Wetland to preserve and rescue this international wetland. Aiming at this goal, remote sensing techniques and the data recorded by related organizations were used. The results of the study showed that the currents of water entering the wetland over the solar year of 1380 consisted of runoff (20.06 million cubic meters), rainfall (14.75 million cubic meters), springs (5.487 million cubic meters) and groundwater leakage to the wetland (34.663 million cubic meters); the output of the wetland was also subject to evaporation (85.1 million cubic meters). Also, the amount of ecological water required by the wetland is equivalent to 110.96 million cubic meters.

As the world’s population grows, the need for health care increases. This necessity has caused the invasion of engineering methods in medical field. A remote sensor is connected to an amplifier via a length of cable in order to measure the required parameter in the medical field. The amplifier output contains not only the sensor signal, but also a 50- or 60-Hz component due to stray pickup from power mains. Pickup of this type is often associated with sensitive high-impedance sensors like microphones and electrodes. Such hum may prove to be merely bothersome in a high-fidelity sound reproduction system, but it can be overwhelming when attempting to measure very small voltages, such as is found when trying to obtain a patient’s electrocardiogram (ECG). This paper briefs the implementation of Adaptive noise cancellation algorithms such as LMS algorithm and RLS algorithm using MATLAB 6 (R12) suitable for real time implementation, which can be used during measurements, will be developed.

Grape is one of the most delicious, refreshing and nourishing fruits. One of the most important cultivars of grape, cv. Perlette is being grown extensively in northern India owing to its attractive colour, heavy bearing and good fruit quality. However, more thrust is to be laid on further improvement of the fruit quality. In this report we demonstrate the effect of girdling, thinning and application of GA3 on fruit quality and shelf life of grape. Girdling + 40 ppm of GA3 proved most effective in increasing the quality in terms of total soluble solids (TSS) (17.47 %), total sugar (8.94 %) reducing sugar (10.35 %), TSS/acid ratio (27.24 %) and resulted in decrease in acidity (24.59 %). During storage at room temperature minimum physiological loss in weight (9.42 %) was observed after three days of storage. The present study therefore suggests that girdling and growth regulator application is a desirable practice to enhance berry ripening and fruit quality in grape cv. Perlette.

The Islamic civilization paid great attention to mechanical engineering during the medieval centuries. The mechanical engineers of the Islamic Empire gave outstanding attention to measurement instrumentation including balances and astrolabes. They used balances to adjust commercial activities in the society and for engineering purposes. They succeeded to use the balance in determining the specific weights of both solids and liquids, examining the purity of precious materials and examining the constituents of alloys. They developed the Greek astrolabe and discovered hundreds of applications required by their daily life. They also devised different type of astrolabes such as the planispheric, quadrant and spherical astrolabes. They wrote 100's of manuscripts explaining the design and use of the astrolabe where some of them still surviving up to now in a large number of libraries and museums around the world. The paper discusses the contribution of Islamic scientists to the development and application of balances and astrolabes.

A total of ten plant samples of Rhus mysorensis (Darsan) from unique locations of Sanganer region of Rajasthan were collected for isolation of fungal endophytes. Of these, maximum frequency of Fusarium species (26.33 %) were recorded which are morphologically similar but ecologically variant. The present paper discusses the diversity of Fusarium species (Fusarium oxysporum & Fusarium roseum) within the Rhus mysorensis plant samples of unique location of sanganer region of rajasthan on the basis of frequency distribution and occurrence.

Butterflies are fascinating creatures of order Lepidoptera have special place in the insect world. The present study was carried out to document the species diversity and abundance from January to December 2011 in the Erode District, using transects counting method. All the butterflies recorded at a distance of 5m from the observer during the counts. Species diversity and abundance is calculated by Shannon –Weiner index. A total of 694 individuals belonging to 23 species of butterflies were recorded during the period and highest numbers of species was recorded from the family Nymphalidae, Papilionidae Pieridae were recorded. Butterflies are sensitive to the changes in the habitat and climate, which influences their distribution and abundance. It is suggest that butterfly species diversity generally increase with increase in vegetation.

Majority of tumours occurring in minor salivary gland are malignant. Pleomorphic adenoma is a benign tumour rare in minor salivary gland of palate. We report a rare case of a minor salivary gland pleomorphic adenoma of the palate in 60 year old female patient who presented with painless slow progressive swelling of palate over the last 7 years. The mass was extending to nasopharynx and oropharynx causing mechanical obstruction of airway and dysphagia. CT scan depicted soft tissue density mass lesion measuring 5 × 4.5cm in the left half of soft palate. Fine needle aspiration cytology was suggestive of pleomorphic adenoma. Complete surgical excision of mass was done. Histopathological examination confirmed diagnosis of pleomorphic adenoma of minor salivary gland. Pleomorphic adenoma must be considered in the differential diagnosis of palatal mass. Timely intervention of pleomorphic adenoma prevents malignant changes.Complete surgical excision is the treatment of choice.Recurrence is rare after complete surgical excision with wide margin. Prognosis is excellent after complete surgical excision.

Library cooperation (LC) stems out of the fact that no library can be self-sufficient in terms of funding and resources available for service delivery. Funding level could affect library collection, staffing, facilities, equipment and even buildings which are all areas where the impact of library cooperation could be visible. The level of resources including funding available to Nigerian universities especially the privately owned makes library cooperation an issue for consideration. Resources to meet vital requirements in some of the institutions are not available and the library is always considered as a minor when allocating resources, this further softens the ground for venturing into Library Cooperation. This paper which studied ten (10) private universities in Southwest Nigeria highlights the areas of Library Cooperation among universities, the process, the progress and the challenges. It concluded that libraries in these institutions are still developing.