CHEMICAL ENGINEERING

THE IMPACT OF EFFECTIVE CONTRACT PLANNING ON CONTRACTORS PROFIT ( A CASE STUDY OF JULIUS BERGER, UYO OFFICE)

ABSTRACT Effective contract planning in construction projects is not only crucial to attainment of project objectives but necessary if project failure is to be avoided, losses minimised and profitability enhanced by the Contractor. While research has shown general low usage of formal and effective contract planning in the UAE, Hong Kong, Kuwait, UK and Ghana, …

THE IMPACT OF EFFECTIVE CONTRACT PLANNING ON CONTRACTORS PROFIT ( A CASE STUDY OF JULIUS BERGER, UYO OFFICE) Read More »

PRODUCTION OF MOSQUITO REPELLANT INSECTICIDES USING PLANT EXTRACTS

1.1 INTRODUCTION Malaria is one of the commonest and major parasitic infections of public health interest in the globe especially in the tropics and sub-tropics. It still remains the principal cause of morbidity and mortality in all sub-saharan countries up to this day. Malaria accounts for 10% – 30% of all hospital admissions, and is …

PRODUCTION OF MOSQUITO REPELLANT INSECTICIDES USING PLANT EXTRACTS Read More »

NUTRITIONAL PHYTOCHEMICAL AND MICROBIAL CONTENT OF BOMBAX COSTATUM LEAVES

CHAPTER ONE 1.0.          INTRODUCTION: Plants have been an important source of medicine for thousands of years. Even today, the World Health Organization (WHO) estimates that up to 80% of people still rely primarily on traditional remedies such as herbs for their medicines. The medicinal value of these plants is due to the presence of a variety …

NUTRITIONAL PHYTOCHEMICAL AND MICROBIAL CONTENT OF BOMBAX COSTATUM LEAVES Read More »

INHIBITORY EFFECTS OF EXTRACT OF BLACK PEAR, SOUR SOP, MONKEY SEED DURING LIPID OXIDATION

CHAPTER ONE INTRODUCTION Reactive oxygen species (ROS) and reactive nitrogen species (RON) are free radicals, which derived either from normal metabolic processes or from external sources (Magalhaes, 2006). These species are essential to energy supply, detoxification, chemical signalling and immune function (Dimitrios, 2006). However, overproduction of these free radical may lead to damage to valuable …

INHIBITORY EFFECTS OF EXTRACT OF BLACK PEAR, SOUR SOP, MONKEY SEED DURING LIPID OXIDATION Read More »

CHEMICAL AND ANTI OXIDANT PROPERTIES OF PEPPER FRUIT BLACK PEAR MONKEY KOLA

CHAPTER ONE 1.0.          INTRODUCTION: Piper nigrum (pepper fruit) is an indigenous fruit tree of the family Annonaceae (Etukudo, 2000). It’s widely distributed and consumed by the inhabitants of Western Cameroons, Ivory Coast and Southern Nigeria (Hutchinson and Dalziel, 1954; Keay et al., 1960; Okiy, 1960). It is a medium- sized or small tree which spreads throughout the …

CHEMICAL AND ANTI OXIDANT PROPERTIES OF PEPPER FRUIT BLACK PEAR MONKEY KOLA Read More »

SYNTHESIS OF A NOVEL ORGANOKAOLINITE WITH IMPROVED SORPTION CHARACTERISTICS USING KAOLINITE AND CETYL TRIMETHYL AMMONIUM BROMIDE

CHAPTER ONE INTRODUCTION AND LITERATURE REVIEW 1.0     General Introduction Clay is a naturally occurring material composed primarily of fine-grained minerals, which show plasticity through a variable range of water content, and which can be hardened when dried or fired. Clay deposits are mostly composed of clay minerals (phyllosilicate minerals) and variable amounts of water trapped …

SYNTHESIS OF A NOVEL ORGANOKAOLINITE WITH IMPROVED SORPTION CHARACTERISTICS USING KAOLINITE AND CETYL TRIMETHYL AMMONIUM BROMIDE Read More »

SCREENING OF PROXIMATE CONSTITUENTS OF THE LEAF EXTRACTS OF SIMAROUBA GLAUCA WHICH INCLUDES MOISTURE, PROTEIN, CARBOHYDRATES, ASH FIBRE AND LIPID CONTENT OF SIMAROUBA GLAUCA

CHAPTER ONE 1.1 INTRODUCTION Plants undergo photosynthesis and they constitute a primary resource of carbon, vitamins, minerals, protein, essential fatty acids, and utilizable energy for food production (Young and Pelett, 1994). Plants have played a significant role in maintaining the health and improving the quality of human life for thousands of years. (Mishra, 2010).  They …

SCREENING OF PROXIMATE CONSTITUENTS OF THE LEAF EXTRACTS OF SIMAROUBA GLAUCA WHICH INCLUDES MOISTURE, PROTEIN, CARBOHYDRATES, ASH FIBRE AND LIPID CONTENT OF SIMAROUBA GLAUCA Read More »

INVESTIGATION INTO THE EFFECT OF THE TOXICANTS ARSENIC AND MANGANESE ON MALE REPRODUCTIVE SYSTEM OF WISTAR RAT.

CHAPTER ONE INTRODUCTION AND LITERATURE REVIEW                                                                                                                                                                                                                            1.1       INTRODUCTION. In today’s industrialized world, exposure to pollutants in which heavy metals like arsenic, lead, manganese are an example is of high risk. These metals are present even in drinking water. Arsenic is mostly present in underground water. These metals are highly distributed in our environment and …

INVESTIGATION INTO THE EFFECT OF THE TOXICANTS ARSENIC AND MANGANESE ON MALE REPRODUCTIVE SYSTEM OF WISTAR RAT. Read More »

EFFECT OF TEMPERATURE ON THE YIELD OF SHEA BUTTER IN AN UNBAFFLED VESSEL AT SELECTED KNEADING PERIOD

Shea butter has been a traditional heritage of Africa from time immemorial. The triglyceride which contains a high amount of vitamin A, E, F and some other valuable nutrients is widely used in cosmetics and pharmaceuticals, as well as for domestic use in cooking. Nigeria (as well as many other West African countries) is blessed …

EFFECT OF TEMPERATURE ON THE YIELD OF SHEA BUTTER IN AN UNBAFFLED VESSEL AT SELECTED KNEADING PERIOD Read More »

DETERMINATION OF THE INHIBITION EFFICIENCY OF LASIENTHERA AFRICANUM AS A NATURAL CORROSION INHIBITOR

CHAPTER ONE 1.0 INTRODUCTION Corrosion is a serious problem in this modern age of technological advancement. This accounts for a lot of economic losses and irreversible structural damage. The cost of corrosion failures annually for any nation is difficult to estimate per annum, but it has been stated that the wastage of material resources by …

DETERMINATION OF THE INHIBITION EFFICIENCY OF LASIENTHERA AFRICANUM AS A NATURAL CORROSION INHIBITOR Read More »

× Chat With Us