Natural & Applied Sciences

Research Papers/Topics in Natural & Applied Sciences

SEISMIC TIME-LAPSE RESERVOIR MONITORING

Time lapse seismic which geophysicists often abbreviate to four dimensional (4-D) seismic is a geophysical technique which involves simply repeating a series of 3-D seismic survey over time such that the fourth dimension is in “Calendar Time”. This gives it the ability to image fluid flow in a well volume.

CHARACTERISTICS OF POLLUTED SANDS A CASE STUDY IN NIGER DELTA (REVIEW)

ABSTRACTThis study is aimed at using the characteristics of polluted soil to delineate different soillayers and deduce ways of providing remediation to the problems generated as aresult of soil pollution using Electrical Resistivity Method.An inversion of the measured apparent resistivity values using a computer program was carriedout to determine the true subsurface resistivity. This method was used toestimate the lateral and vertical extend to which a particular soil has beencontaminated by...

SEISMIC CHRONOSTRATIGRAPHY: PROSPECTS IN PETROLEUM EXPLORATION

Seismic survey has long become a trusted tool for hydrocarbon exploration. This is because of the outstanding ability of seismic reflections and their over lapping relationships to image deep and shallow subsurface structures and delineate promising structural and stratigraphic traps. These subsurface features become good prospecting targets, maybe because of their depositional history or post depositional eve...

THE IMPACT OF ENVIRONMENT IN THE DISTRIBUTION OF PARASITIC INFECTIONS

ABSTRACTA human or animal with an infection has another organism inside them which gets its sustenance (nourishment) from that person, it colonizes that person and reproduces inside them. The human with that organism (germ) inside is called the host, while the germ or pathogen is referred to as a parasitic organism. Another name for an organism that causes infection is an infectious agent. It is only an infection if the colonization harms the host i.e parasitic relationship. It feeds and mult...

PRELIMINARY STUDY OF THE ANTIMICROBIAL EFFECT OF WATERMELON BARK (ENDOCARP OR RIND ON S. THPHI, E. COLI AND S. AUREUS

ABSTRACTIn a research conducted to ascertain the antimicrobial activity of watermelon (Citrullus lanatus) bark on organisms such as Escherichia coli, Slamonella typhi and Staphylococcus aureus using the ethanol and auqous extracts of the watermelon bark applying agar-well and pour-plate sensitivity technique.   It was observed that the ethanoic extract (dry) of watermelon bark on agar well showed a high inhibitory activity of Staphylococcus aureus and Escherichia coli and shows a moderat...

Determining the incidence of Dengue in Ile-Ife

Pyrexia of unknown origin (PUO) is fever that occurs for no apparent reason with failure toestablish diagnosis within one week of investigation. The fever involves temperatures ofgreater than 38.3oC which occurs sporadically for more than three weeks. Fever resolvesusually after about 3 days but can take 2 weeks.Dengue is a tropical mosquito borne-viral disease and is marked by high fever and severe muscle and joint pains. It is caused by any of four antigenically and genetically distinct vir...

Influence of genetics and environment on grain quality.

AbstractWheat grain quality are strongly influenced by the effects of environment during grain fill. Environmental variables such as temperature, water and fertilizer influence the rate and duration of wheat grain development, protein accumulation and starch deposition in unique ways, and by different mechanisms. The effects of environment are superimposed on the intrinsic temporal patterns of gene expression during grain development. Integration of genomic and proteomic studies with developm...

Introduction to Computers

IntroductionThe computer as we know it is a group of pieces of hardware put together to get a job done faster. To accomplish its various tasks, the computer is made of different parts, each serving a particular purpose in conjunction with other parts. You don't necessarily need to know how these parts operate, at least not at this time, but you should be aware of their co-dependence to take advantage of their various characteristics.  The "computer" is an ensemble of different machi...

Quality Evaluation of Bread Made By Substitution of Bakery Fat with Bullet Pear (Canarium Schweinfurthii) Fruit Oil

AbstractBullet pear (Canarium schweinfurthii) fruit oil was used as a replacement for bakery fat in bread production. Five loaves of bread samples were baked, the control sample was baked with 100% bakery fat and the other four loaves were baked with bullet pear fruit (BPF) oils as substitute for the bakery fat at 25, 50, 75 and 100% levels. The proximate, physical parameters and sensory quality analyses were carried on of these five loaves samples. The results showed some significant differe...

The utility potentials of some dioscorea species with particular reference to D. Rotoridata and D. Dumatorum

Yams are any of the economically useful plants belonging to the genues Diocorea; yams are also the tubers or rhizomes of these plants (Coursey 1967). The yam tuber is economically the most important part of the plant.  The structures of the tuber is variable, depending on the species, most yam tubers are cylindrical in shape; weight of individual tubers ranges from 200g – 50kg (Asiedu 1992).TABLE OF CONTENTSFRONT PAGEDEDICATIONACKNOWELDGEMENT TABLE OF CONTENTSCHAPTER ONE; INTRODUC...

The role of packaging in food processing

The role of packaging in food processing is just one among many ways of food preservation.  As soon as food is packaged, it is set for shipment and marketing.  For many food technologists to embark on food packaging, the food technologist must have food knowledge of the technology, materials, labour equipments, capital, research, engineering and management involved in any such food processing establishment.  The package purposely protects the product from environmental hazards ...

The effect of food packaging material on the environment

Food packaging is just one among ways of food preservation for when food is been packaged, it is set for shipment and marketing. Food Technologist who must have a good knowledge of technology materials, labour equipment, money research, engineering and management is in any food-processing establishment.Particularly, food packages purposely protect the products from environment hazards throughout the period of the shelf life. Some industries can even be instituted purposely for food packaging....

Process for Refining Vegetable Oil and its Food Value

Palm oil is one the commercial product of palm fruit (Elaesis Guineesis). It is derived from the fleshy messieurs of the fruit of the oil palm which contains 45 – 55% oil. Palm oil belongs to a class of food known as fat and oil, which are generally termed lipid. It is oil from plant origin. TABLE OF CONTENTSTitle PageApproval PageDedication Acknowledgement CHAPTER ONEINTRODUCTIONCHAPTER TWO2.1 The Oil Palm 2.2 Extraction and Refining of Vegetable Oil2.3 Types and So...

Physico-Chemical and Organoleptic properties of flour and fufu processed from cassava varities

ABSTRACTThis study was designed to evaluate the potentials of sweet cassava variety TMS 4(2) 1425being manihet palmata and bitter varieties TMS 30572, TMS 30555, and NR 8082 being Manihot utilisima Crantz flours used in the production of fufu,in carrying out the process the root was weighed before and after washing then peele, washed, sliced, fermentation, washing of the fermented mash and dried erther sundrying or oven drying.The sensory evaluation were carried out when the products from 4 (...

Economic assessment of some methods adopted in yoghurt production

Yoghurt is a fermented milk product, produced with a yoghurt starter culture which is a mixed culture of streptococcus thermophilus and lactobacillus bulgaricus in a 1:1 ratio. S thermophilus enjoys a faster growth than L hulgricus.  It adds flavours and aroma to the yoghurt, though both organisms in association produces lactic acid but acetaldehyde and dimethyl propanol, the chief favour component of yoghurt is produced by L bulgaricus.TABLE OF CONTENTSTitle PageApproval PageDedicationA...


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