Digital Commons Network^™

Measurement Of Dust Resistivity And The Effect Of Filter Operating Parameters On Its Value, Allan Issangya

Tanzania Journal of Engineering and Technology (TJET)

Methods sed to measure the electrical resistivity of a dust layer and to determine the influence of various parameters. Dust layer thickness and applied voltage were found to have no influence. Resistivity depends on particle size, packing density, temperature, and air relative humidity. Glass beads and limestone powders of different mean particle sizes were used. Temperature was varied from 20–100 °C and air moisture ranged from dry to near saturation. The findings may help in understanding electrically enhanced fabric filters, whose performance is influenced by the resistivity of the collected dust layer.

Optimal Capacity Allocation Truck Industry In Tanzania:A Case Of National Transport Corporations(Ntc), R Mgaya

Tanzania Journal of Engineering and Technology (TJET)

This paper tries to examine truck transportation service in Tanzania, particularly, in National Transport Corporation’s subsidiary companies - Regional Transport Companies. It provides an analysis based on operations research approach on resource allocation, specifically, truck allocation, with an aim of trying to minimize running costs and hence improve profits. It is established that there had been higher running costs and hence decline of profits in some Regional Transport Companies due to misallocation of capacity. However, this problem had been compounded by some other factors as discussed in the paper. It is recommended that these Regional Transport Companies and other transport …

Dual Versus Single Spark Plug: A Critique, I Mshoro

Tanzania Journal of Engineering and Technology (TJET)

Dual spark plugs are occasionally employed on certain modern Spark lg- nited (S') engines, viz lean burn engines. Their benefit has generally been noticed in the operating conditions whenfuel-air mixture is very lean, or when a larger proportion of EGR has been employed, or during the part load conditions and so on. An extensive literature survey has indi- cared an interesting spectrum of reasons for gains due to the dual spark plug. A consistent explanation is found to be missing which can describe the behaviour of the engines with single versus dual spark plugs There are quite "few researchers who …

Suitability Of The Present Strategic Information Technology Planning (Sitp) Methodologies To The Developing Countries, A Victor

Tanzania Journal of Engineering and Technology (TJET)

The needfor strategy formulation, or in general terms strategic planning, for IT is considered as one of the most important aspects of IT manage- ment. To this end, there are a number of IT strategy formulation method- ologies world-wide. These methodologies were developed over a span of time, starting from mid 1960's when IT use started to become a serious issue in the developed countries, and continued with the trends in IT de- velopment and use, as was applicable in those countries. Morc recent of the methodologies were developed through improvements on earlier ones, and based on the new challenges …

Sixteen Um Students Set For Foreign Exchange Programs, University Of Montana--Missoula. Office Of University Relations

University of Montana News Releases, 1928, 1956-present

No abstract provided.

Essay—Sub-Saharan Africa: Economic Stagnation, Political Disintegration, And The Specter Of Recolonization, Jon H. Sylvester

Loyola of Los Angeles Law Review

No abstract provided.

Commencement Convocation Exercises - May 1994, Prairie View A&M University

Commencement and Convocation Exercises

No abstract provided.

Universal Human Rights And Democratization, Mark Strege

disClosure: A Journal of Social Theory

No abstract provided.

On The "Blessed Assurance" Of "White Male Ways Of Knowing": Examining Confessional Discourses On Racism, Joel Woller

disClosure: A Journal of Social Theory

No abstract provided.

The Aga Khan Health Services - International Newsletter No. 56, Aga Khan University

The Aga Khan Health Services Archives

• Priorities of Infant and Maternal Mortality
• Towards Total Quality Management in Health Care
• Appointments at AKU
• Paponditi Women's Group
• Islamic Medicine: The Role of Private Practitioners
• AKHSP Students Secure Top Positions
• Nurdin Ajania Community Empowerment through Awareness
• Nurdin Ajania
• AKU Faculty Honoured
• New Shoes for Nina
• Scourge of AIDS costing $ 90 Billion Annually
• Moments of Inspiration
• Health care at its very best

Vol.22 N.03 February 3rd 1994, Brown Publishing Company

Black Voice News

No abstract provided.

Volume Cxi, Number 8, February 2, 1994, Lawrence University

The Lawrentian

No abstract provided.

The Critical Importance Of Access To The Sea To The Development Of Burundi, Emmanuel Mugumyankiko

General Maritime Administration Dissertations

No abstract provided.

The Amicus: Vol. 7, No. 2, Fall, Valparaiso University School Of Law

Alumni Magazine: Alumni News (1970, 1978-1987) / The Amicus (1987-1995) / Valpo Lawyer (2000-2006) / Annual Review (2013-2020)

No abstract provided.

Stony Brook Magazine Winter 1994, Stony Brook University, Stony Brook Magazine.

Stony Brook Magazine

v. : ill. ; 28 cm (original analog pub.),For alumni and friends

Folk Tales, Victoria Rostovich

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

Community-Based Aids Prevention And Care In Africa: Case Studies From Five African Countries, Ann Leonard

HIV and AIDS

The Population Council carried out a three-year project entitled “Community-Based AIDS Prevention and Care in Africa: Building on Local Initiatives.” Given the constraints faced by the health care infrastructure in responding to the AIDS crisis and the limitations of traditional educational approaches in motivating people to modify their sexual behavior, in the African context community-based AIDS prevention and care of those affected are the first line of defense against the infection. This project was developed to explore efforts by organizations in Africa dealing directly with the consequences of AIDS, to understand the essential components of effective community-based efforts for AIDS …

1994 Agricola, Arkansas Tech University

ATU Agricola Collection (Yearbooks)

This is the 1994 yearbook of Arkansas Tech University.

Vincentiana Vol. 38, No. 4-5 [Full Issue]

Vincentiana

No abstract provided.

Employment Of Multiphase (Two Phase) Thermal Pump In Absorption Refrigeration System, F. A. Chami

International Refrigeration and Air Conditioning Conference

No abstract provided.

Revenue Enhancement And Cost Reduction Strategies At The University Of Dar Es Salaam (Udsm) Tanzania., Justina M. Minja

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

Improvement Of Solar Salt Works Performance, J Katima

Tanzania Journal of Engineering and Technology (TJET)

Coal, asphalt, black oil paint, naphthol green b and alkali blue 6b were testedfor improvement Of solar energy utilisation in solar salt manufacture. It was found that the use of alkali blue 6b dye dissolved in raw seawater improves efficiency by 3.6 percent. Both modifications could increase solar salt works with a coal coated surface than one employing raw seawater dyed with alkali blue 6b.

Thermodynamics And Transport Proper- Ties Analysis Of Natural Gas From Songosongo In Kilwa- Tanzania, G Mrema

Tanzania Journal of Engineering and Technology (TJET)

Analysis ofthermodynamics and transport properties was carried outfor six natu- ral gas samples from Songosongofield in Kilwa - Tanzania using PRO/II simula- for. Properties of most interest in gas processing (due to their influence on the sales value) such as density, specific gravity, critical parameters, bubble point and dew point, enthalpy, latent heat of vaporisation, molecular weight, boiling point and phase were investigated. In addition composition of the gas was com- pared with that from elsewhere. The gas was assumed to be at a temperature of 30C and a pressme of 150 bar before pressure let down station. Results indicated …

A Conceptual Approach To Water Resources Management For A Catchment In Tanzania, F Mwanuzi

Tanzania Journal of Engineering and Technology (TJET)

In hydrology/Water resources, normally rainfall data are available for longer periods than runoff data. Many attempts have been made to extend these runoff data by using system approach and conceptual models. The conceptual approach to simulate runoff at the outlet ofa catchment is based on the physical processes involved in the transformation of rainfall into runoff (river flow). In this paper a conceptual model, (SEAMOD) has been used. This model has a limited number of parameters to optimize when compared to other models like the sacramental model. Also it requires less input data. The model assumes that the storage is …

Setting Strategies For Maritime Education And Training In Malawi For The Mid-1990'S And Beyond, Laston George Williams Makuzula

World Maritime University Dissertations

No abstract provided.

A Check Parameter Method For Use In Designing Relays, H Kadete

Tanzania Journal of Engineering and Technology (TJET)

Low quality magnetic steel available locally has been successfully used as core material for a relay. New design principles as well as construction procedure used in development of a prototype are presented. Then the new approach is assessed and found to deliver acceptable accuracy.

Critical Evaluation Of The Effects Of Changes Made To Roughing Filters Of Mpira-Balaka Plant On Its Treatment And Operational Performance, C Zulu

Tanzania Journal of Engineering and Technology (TJET)

Mpira Balaka, a full scale rural water supply project was constructed in Ntcheu, Malawi, in 1988 utilising Slow Sand Filtration (SSF) as the main treatment process and roughing filtration as the pretreatment method,following the promo- tion of this technology by various international institutions. During the rainy seasons, the treatment plant for Mpira Balaka failed to cope with the high raw water turbidity, resulting into very short filter run times and hence also to unavoidable distribution Of very turbid water to the rural communi- ties as a result Of by-passing the filters. Of the fifty or so existing rural projects in …

Practical Aspects In Sensing Vrm Magneti- Sation Characteristics For Rotor Position Detection, N Mvungi

Tanzania Journal of Engineering and Technology (TJET)

The detection of rotor position (stator/roror poles overlap) in a variable reluc- tance motor using the dependence of permeance on rotor position is the core of the effort to eliminate the need of a physical position sensor in the rotor shaft in the positional feedback operation of the motor. The reliability of the whole proc- ess Of eliminating the need of a physical sensor rests squarely On the ability to measure the instantaneous permeance ofa phase when the motor is in operation and at stand still. This paper presents an experimental investigation on the in- triguing problems of obtaining repeatable …

Temperature-Based Predictions Of Wind Speed, Relative Humidity, Rainfall, Absolute Humidity, Vapour Pressure And Dew Point, E. C. Njau

Tanzania Journal of Science

We derive from first principles analytical expressions that give each of the following meteorological parameters in terms of (air) temperature: wind speed, relative humidity, rainfall, absolute humidity, vapour pressure and dew point. The practical validity of these expressions has been clearly ascertained using past meteorological records. Since air temperature is one of the easiest meteorological parameters to predict (Njau, 1991, 1994), the derived analytical expressions are simple and convenient tools by means of which wind speed, absolute humidity, rainfall, relative humidity, vapour pressure and dew point may be predicted. In this paper we demonstrate and explain how the derived analytical …

Aerosol Composition As A Function Of Particles Size, Y. I. A. Koleleni, R. Van Grieken

Tanzania Journal of Science

Analysis of air particulate matter for various particle diameters 0.25-0.5 mm: 0.5-1 mm; 1-2 mm; 2-4 mm; and 4-8 were performed to investigate the contribution of both fine and coarse particles in environmental content. The abundance in the highest percentage concentration relative to particle diameters has shown interesting diagonal pattern with most of the elements ranging within 0-2%; 0.20%; 20-40%; 40-70%: and 70-100% respectively for different particle sizes. For the lowest percentage concentration range it is within 0-20%. In general the sum of elemental concentration provides a significant important result as far as pollution studies are concerned.