CURRICULUM VITAE (CV) FOR PROPOSED PROFESSIONAL STAFF.

1.0 Proposed Position:

2.0 Name of Firm:

3.0 Name of Staff: Silanda Danstan.

4.0 Date of Birth: 15th April, 1961; Tanzanian.

5.0 Membership of Professional Organisations:

oEngineer Registration Board (ERB) – Registered No. PE 2798.

oInstitute of Civil Engineer – Member.

6.0 Education:

Name of Institution

Dates Attended

Qualification

University of Dar-es-salaam, Tanzania.

1983 - 1987

Bachelor Of Science in Civil Engineering (B.Sc.).

University of Bath – United Kingdom

1992 - 1997

Master of Science in Construction Management (M.Sc.)

University of Stellenbosch, South Africa.

2004 - 2006

Master of Philosophy in Environmental Management (M. Phil.).

University of Stellenbosch, South Africa.

2006 – 2012

Masters of Civil Engineering in Pavements (M. Eng.).

Roads Directorate, Copenhagen, Denmark.

September, 1988 -November, 1988

Road Maintenance and Pavement Management.

Dar-es-salaam School of Aviation (Civil Aviation).

July, 1982- June, 1983.

Air Traffic Control Course.

7.0 Other Training:

oACN-PCN System for Airfield Pavements – Engineeringcpd.com by Bruce Rodway, Online;

oRigid Airport Pavements Design – Engineeringcpd.com by Bruce Rodway, Online;

oRigid Pavements Construction – Engineeringcpd.com by Bruce Rodway, Online;

oDesign of Flexible Airport Pavements – Engineeringcpd.com by Bruce Rodway;

oDesign of Airport Pavements Using FAARFIELD – Engineeringcpd.com by Dr. Ian Thompson;

oWater and Sewer Networks – University of Stellenbosch, RSA.

oSewer Systems Planning and Design – University of Stellenbosch, RSA.

oIntroduction to GIS – University of Botswana, Maun, Botswana.

8.0 Countries of Work Experience:

Mocambique; South Africa; Saudi Arabia; Botswana; Tanzania.

9.0 Languages:

Speaking

Reading

Writing

English

Excellent

Excellent

Excellent

Kiswahili

Excellent

Excellent

Excellent

Portuguese

Average

Average

Average

10.0 Key Qualifications:

As per academic qualifications here under are my capabilities:

oStructural Engineering Practitioner;

oConstruction Management Professional;

oEnvironmental Management Professional;

oPavement Engineering Expert.

11.0 Employment Record:

From October, 2019: To date

Employer: LEA Consulting Ltd.

Position: Monitoring and Evaluation Expert

Duties:

Support PIU Unit of PO-RALG to prepare work plans and targets on Monitoring and Evaluation of Dar-es-salaam Metropolitan Development Project;

Train PIU staff on Monitoring and Evaluation aspects of the DMDP Program;

Prepare data formats ; survey forms; monitoring schedule for all activities for the program;

From November, 2017: June, 2019

Employer: UNETEC Engineering;

Position: Resident Engineer – Songwe International Airport.

Duties Performed:

Supervision of construction of New Terminal Building; Supervision of construction of New Terminal Building and runway reconstruction;

Manage day-to-day construction monitoring of the project.

Manage a team of Engineer’s site personnel;

Oversee operations and activities of the site laboratory;

Monitor and report on training, empowerment, OHS and environmental issues;

Oversee operations and activities of the acceptance quality control;

Issue instructions and drawings to the contractor, co-ordinate and inspect the execution of the Works by the contractor;

Prepare and issue Variation Orders;

Measure, check and control quantities and issue certificates for payment to the Client;

Report and track progress, compile estimates and forecasts;

Implement and maintain the Company’s Quality Management System;

Compile completion and taking-over Certificates, as-built records & plans and completion report;

Any other responsibilities as assigned by the Project Director.

From April, 2015: To October, 2017;

Employer: GIBB Engineering;

Position: Regional Business Development Manager – East Africa:

Tanzania, Rwanda, Uganda, and Ethiopia.

Duties Performed:

Identify potential clients for civil Engineering consultancy service;

Market Civil Engineering consultancy services to the potential clients identified above;

Identify civil engineering projects to be executed by potential clients and forward key information to headquarters for consideration;

Participate in project negotiations for project won by Gibb;

Participate in the design of infrastructure projects won by Gibb;

Identify potential local partners and sign partnership agreements to enhance Gibb competitive edge;

To make follow ups of payments on won tenders in accordance to contracts signed;

To maintain a Regional office and arrange for all rentals and associated payments are done timely;

Assist Project Directors in reviewing project progress and provide him / her of the necessary steps to be taken to expedite execution and therefore completion of projects.

From June, 2014: To March, 2015;

Employer: DOCH Consulting;

Position: Pavement Engineer;

Construction supervision of New Terminal III and

Associated external works of Aircrafts Apron

and landside vehicle parking.

From July, 2010: To June. 2014;

Employer: National Road Administration of Mocambique (ANE);

Position: Transport Engineering Consultant - Provinces of

Maputo, Gaza, and Inhambane.

Duties Performed:

Assist Provincial Engineers in the identification, preparation, appraisal and implementation of road projects and programs;

Participate in the development of appropriate road management policies and strategies at National level;

Participate in the procurement process of different service providers of various road projects at Provincial level;

Perform road condition assessments in order to identify appropriate maintenance strategy required;

Evaluate quality compliance of completed road works and advice appropriately;

Conduct training to Engineers and Technicians on the appropriate maintenance techniques of road pavements;

Perform mechanistic pavement designs of road pavements for different traffic levels.

From March, 2009: To April, 2010;

Employer : Development Bank of Southern Africa (DBSA);

Position : Civil Engineering Expert.

Duties Performed:

Monitoring of the implementation of the Kei Railway project from East London to Umthatha in Eastern Cape of South Africa;

Participate in the assessment and evaluation of Municipalities Engineering Capacities in service deliveries of various municipalities in South Africa;

Identify needs and gaps of Engineering Capacities of Municipalities in delivering services of evaluated municipalities;

Participate in identifying, preparation, appraisal, and implementation of municipal development projects to address service delivery shortage in municipalities assessed / evaluated;

Monitor progress of implementation of projects initiated to address service delivery shortages in different municipalities;

Advise on corrective actions to be taken to projects running behind schedules to relevant authorities.

From July, 2008: To December, 2008;

Employer: Howard + Humphreys (T) Ltd;

Position: Pavement Engineer;

Duties Performed:

Conduct road pavement condition surveys of various projects;

Perform necessary laboratory tests to complement condition surveys done;

Perform mechanistic pavement design in line with different traffic loads;

Supervise implementation of designed pavements;

Participate in Technical Audit of completed road projects.

From January, 2007: To June, 2008;

Employer: Saudi Arabia Civil Aviation Authority (GACA);

Position: Pavement Engineer:

Duties Performed:

Conduct pavement condition surveys of existing runways;

Perform design review of rehabilitation design as well as new design of pavements for aprons, taxiways and runways;

Identify borrow pits of materials to be used for rehabilitation as well as new construction of aprons, taxiways, and runways;

Perform laboratory tests for materials identified to be used for rehabilitation and new construction of aprons, taxiways, and runways;

Design asphalt mixes for rehabilitation and new construction for aprons, taxiways, and runways;

Design cement stabilized mixes for construction of new apron;

Supervise the construction of granular pavement layers of new apron;

Supervise construction cement stabilized layers of new apron;

Supervise construction of asphalt layer of new apron.

From January, 2006: To December, 2006;

Employer: Opportunities Development Consultants (ODC);

Position: Managing Director;

Duties Performed;

Identify potential clients of civil engineering consultancy services;

Prepare Expression of Interests for identified clients;

Prepare proposals upon being shortlisted by clients;

Manage execution of won tenders;

Market civil engineering services of ODC.

From January, 2003: To January, 2006;

Employer: Roads department – Government of Botswana;

Position: Principal Roads Engineer – West Region.

Duties Performed:

Manage the Regional Office of Department of Roads;

Team leader in the identification, preparation, appraisal, and implementation supervision of road projects in the Region;

Prepare Annual Budget of the Region;

Team leader of the procurement of all services under the department in the region;

Review project progress of procured services and advise service provider of the necessary action to taken to avoid delays and cost overruns;

Assess the quality of the product / services provide in order to ensure value for money has been achieved;

Participate in the development of appropriate road management policies and strategies at national level.

From January, 1990: To January, 2003;

Employer: Ministry of Industries, Government of Botswana;

Position: Materials Engineer.

Duties Performed:

Manage the materials testing laboratory of the Ministry of Trade and Industry;

Conduct relevant tests to raw materials used in the manufacturing of concrete articles;

Train contractors in the Themes of Estimating and Tendering; Project Planning, and Site Productivity.

From July, 1987: To December, 1990;

Employer: Ministry of Works, Tanzania;

Position: Assistant Executive Engineer, Central Materials Laboratory (CML).

Duties Performed:

Pavement condition surveys of road pavements;

Site and Soil investigations of subsurface condition of proposed bridges and high rise buildings;

Laboratory testing of materials samples collected from site;

Participate in preparation of materials specifications of road and airport runways;

Design of asphalt mixes and cement stabilized mixes.

12.0 Detailed Tasks Assigned:

Overall planning and coordination of roads, airport runways, taxiways, and aprons construction materials investigations;

Road visual condition assessment inclusive of IRI determination; Rut measurements;

Pavement evaluation by DCP and FWD for rehabilitation design and technical auditing;

Laboratory investigation of pavement materials for improvement by mechanical stabilisation;

Assessment/analysis of insitu subgrade conditions by DCP method;

Pavement design for new roads and rehabilitation;

Technical auditing for completed construction works;

Design of asphalt concrete mixes, cement concrete mixes, cement stabilised mixes, bitumen stabilised mixes;

Compilation of materials specifications for airport and road pavements construction;

Perform route location for roads, railway, and pipelines using GIS;

Location of airports, land fills, dams, and other amenities to ensure environmental friendliness;

Perform Environmental Impact Assessment (EIA) of development projects;

Evaluation of appropriate bidder for a development project;

Supervision of construction projects;

Management of construction organizations;

Creation of construction management models to aid prediction of various construction processes

Identification, preparation, appraisal, and implementation supervision of transport projects and programs;

Participate in the development of appropriate transport policies and strategies at national level.

13.0 Works Undertaken That Best Illustrate Capabilities to Handle Proposed Assignment:

From April, 2015: To October, 2017;

Employer: GIBB Engineering;

Position: Regional Business Development Manager – East Africa:

Tanzania, Rwanda, Uganda, and Ethiopia.

Duties Performed:

Identify potential clients for civil Engineering consultancy service;

Market Civil Engineering consultancy services to the potential clients identified above;

Identify civil engineering projects to be executed by potential clients and forward key information to headquarters for consideration;

Participate in project negotiations for project won by Gibb;

Participate in the design of infrastructure projects won by Gibb;

Identify potential local partners and sign partnership agreements to enhance Gibb competitive edge;

To make follow ups of payments on won tenders in accordance to contracts signed;

To maintain a Regional office and arrange for all rentals and associated payments are done timely;

Assist Project Directors in reviewing project progress and provide him / her of the necessary steps to be taken to expedite execution and therefore completion of projects.

Project Name: Feasibility Study and Preliminary Design of Dar-es-salaam Commuter Railway.

Duration: May. 2016 – February, 2017.

Main Project Features: The project involved potential railway line investigations and analysis of the City of Dar-es-salaam. Then route reconnaissance was done to ascertain main features of the corridors. Selection of railway alignment followed after reconnaissance. Feasibility study by using Cost and benefit analysis was conducted. Upon identifying possible railway lines, priority scheme to rank their importance was established. Preliminary design of railway line was then done.

Activities Performed:

Desk study to document population density and demography of city inhabitants thereby identify potential corridors;

Corridors Investigations and analysis;

Route selection of railway alignment;

Railway alignment route reconnaissance;

Selection and location of passengers and freight terminals;

Geographical Information System (GIS) in collaboration with Multi - Criteria Evaluation (MCE) was used;

Factors influencing station location were identified namely; Land use; Transport connectivity; Community population density and demography; Topographical features of land (slopes); Conservation areas were avoided i.e. water bodies.

Railway structures analysis and design;

Design of railway / permanent way pavement;

Feasibility study for the commuter railway network;

Preliminary Design of the initial phases of the network;

Project Name: Rehabilitation and Expansion of King Abdulaziz International Airport, Jeddah, Saudi Arabia.

Duration: January, 2007 – June, 2008.

Main Project Features: The project involved structural strengthening and widening of pavements of three parallel runways, each 4000 metres; design and construction of new Hajj Terminal Aircraft Apron with an area of 1000m x 200m; construction of two new control towers and other accessory buildings. Budget was estimated to be 1.0 Billion Saud Real (350 Million USD).

Activities Performed:

oPavement condition survey to identify defects;

oSelection of cost-effective rehabilitation option;

oDesign of runway and apron pavement;

oMaterial testing to characterise subgrade soils (CBR, sieve analysis, etc);

oDesign of cement stabilised mixes for sub bases and bases;

oDesign of asphalt concrete mixes;

oDesign of cement concrete mixes;

oSupervising the construction of granular subgrades, cement stabilised bases and sub bases, cement concrete surfacing, asphalt concrete surfacing.

Howard Humphrey (T) Ltd

Duration: July 2008 To: February 2009

Position: Senior Highway Engineer

Activities performed:

Perform technical audit on completed road construction Project. Mai-Mahiu to Nakuru Road (105kms) in Kenya:

Take photos for every 250m, foresight and backsight;

Measure rut for outer wheel pass and inner wheel pass for every 250m;

Drill cores to obtain thickness of pavement for every 1.0km of the road;

Conduct FWD measurements for every 250m of the road for both lanes of a two way highway;

Evaluate the data collected by using World class tools, Elmond software to analyze FWD data;

Review pavement designs for airports and roads. Inter alia: Upgrading of Julius Nyerere International Airport in Tanzania; rehabilitation of Mwanza Airport in Tanzania using FAA software - LEDFA;

Project: Rigid Pavement Design for Provincial road in Limpopo

Province, South Africa.

Main Project Features:

The provincial road Authority required a concrete road for heavy traffic;

The Axle loads were (KN): 80 (20%); 90 (40%); 100 (30%); 110 (10%); with their percentage occurrence in brackets;

Position: Pavement Design Engineer.

Activities Performed:

Traffic was characterized to obtain the design axle load;

Two types of concrete pavements were designed, plain jointed ; and dowel jointed by using CNCPave as well as Mechanistic Design first principles;

The most appropriate pavement in term of life cycle costing was selected.

Project: Flexible Pavement Design for Provincial road in Western

Cape Province, South Africa.

Main Project Features:

The provincial road Authority required a flexible pavement road for heavy traffic;

Statistics for traffic loads were given;

Position: Pavement Design Engineer.

Activities Performed:

Traffic was characterized to obtain the design axle load;

Flexible pavement was designed by Mechanistic Method by using BISAR software;

Different thicknesses of sub-base (cement stabilized), base (granular), and asphalt concrete to withstand the desired cumulative design axles were established;

Project: Flexible Pavement Design to rehabilitate bitumen

surfaced Provincial road in Western Cape Province, South

Africa.

Main Project Features:

The provincial road Authority required to rehabilitate bitumen surfaced road for heavy traffic;

The road was important as it was used to transport agricultural produce to markets.

Position: Pavement Design Engineer.

Activities Performed:

Traffic was characterized to obtain the design axle load;

Falling Weight Deflectometer (FWD) was used to obtain deflections for establishing stiffness modulus of the existing pavement layers;

Appropriate pavement strengthening was established to withstand the desired design axle load.

Project: Reconstruction of Chalinze – Segera Road Section.

Position Held: Assistant Executive Engineer.

Activities performed:

Visual condition survey of the road section to record pavement defects namely; rutting, cracking; shoving, pot-holes;

Opening of trial pits in every one kilometres to ascertain the subsurface conditions along the road for reconstruction;

Laboratory tests to classify the types of soils along the road alignment;

Compaction characteristics tests of the soils encountered;

Perform California Bearing Ratio (CBR) test to ascertain the strengths of different subgrades along the road alignment.

Project: Investigation of Premature Failure of Dar-es-salaam International Airport Apron Pavement.

Position Held: Assistant Executive Engineer.

Activities performed:

Visual condition survey to record asphalt pavement defects namely; rutting, cracking; shoving;

Pavement coring to ascertain the extent and magnitude of cracking;

Bitumen extraction from cores to establish the grade of bitumen used and aggregate structure;

From the investigation we recommended a rigid pavement for the apron.

Project: Rehabilitation of Mwanza Airport.

Position Held: Assistant Executive Engineer.

Activities performed:

Visual condition survey to record pavement defects namely; rutting, cracking; shoving;

Different sizes of aggregates were collected from the quarry. Combination of the stones was done to ensure that the obtained grading fell with in the FAA specification envelop. The maximum quantity of fines were kept at 8%;

Compaction test was performed to establish the moisture density relationship;

California Bearing Ratio (CBR) was conducted to ensure that, the minimum value of 80 is obtained. Literature documented that, the higher the dry density the higher the CBR;

Shear strength test was conducted to establish the frictional angle (ø) and cohesion (c) used to define the Mohr-Coulomb failure envelop. The parameters were then put in the relation, Ì=c + σtanø to model the granular material. The higher the ø the more resistance is against aircraft wheel rutting.

Project: Geotechnical Investigations For Foundation Design of Transmission Tower at Nyakipambo, Iringa.

Position Held: Assistant Executive Engineer.

Activities performed:

Open a borehole to ascertain subsurface conditions of the soils;

Collect sample of soils for every change of soil type for laboratory tests and prediction of soil behaviour upon loading;

Perform SPT test for every change of soil type to estimate the shear strength of the soil;

From the investigation foundation depth and shear strength were established.

Project: Geotechnical Investigations For Foundation Design of Four Stories Structure for TANESCO in Tanga, Tanzania.

Position Held: Assistant Executive Engineer.

Activities performed:

Open a boreholes to ascertain subsurface conditions of the soils within the site at which the structure was to be erected;

Collect sample of soils for every change of soil type for laboratory tests and prediction of soil behaviour upon loading;

Perform SPT test for every change of soil type to estimate the shear strength of the soil;

From the investigation foundation depth and shear strength were established.

Name of Project: Rehabilitation of Maccarratane – Massingir Road, Mocambique (104 kms).

Main Project Features: Rejuvenation of seal along 40 kilometers; reconstruction of new culvert for 47 water transverse crossings. Reconstruction of 67 kms of base and double surface dressing. The project budgeted was 3.5 Million USD.

Position: Pavement Engineer

Activities Performed:

oPavement condition survey to identify defects;

oNon-destructive testing of base layer by means of DCP to ascertain its strength and remaining life;

oPavement Design by using DCP technology;

oSelection of cost-effective rehabilitation options;

oPrepare contract documents and procurement of contractor;

oSupervision of the rehabilitation works.

Name of Project: Upgrading of Magudi - Mutaze Road, Mocambique (75 kms).

Main Project Features: Upgrading of gravel road to bitumen standard. The road length was 75 kms.

Position: Pavement Engineer

Activities Performed:

oPavement condition survey to identify defects;

oNon-destructive testing of gravel and subgrade later to a depth of about 800mm by means of DCP to ascertain its strength and remaining life;

oTraffic count and characterization to ascertain traffic loads;

oPavement Design by using DCP technology;

oSelection of cost-effective upgrading options;

oPrepare contract documents and procurement of contractor;

oSupervision of the rehabilitation works.

Name of Project: Rehabilitation of Macia - Chokwe Road, Mocambique (72 kms).

Main Project Features: Strengthening of asphalt concrete surface along 20 kilometers by a 20mm asphalt surface layer; reconstruction of new base and surface for the remaining 52 kilometres.

Position: Pavement Engineer

Activities Performed:

oPavement condition survey to identify defects;

oNon-destructive testing of base layer by means of DCP to ascertain its strength and remaining life;

oTraffic count and traffic characterization to ascertain traffic loads;

oPavement Design by using DCP technology;

oSelection of cost-effective rehabilitation options;

oPrepare contract documents and procurement of contractor;

oSupervision of the rehabilitation works.

Name of Project: Upgrading of Malehice – Manjakaze road to bitumen standard (70 kms.)

Position: Pavement Engineer

Main Project Features: Upgrading of a sandy road by constructing a lightly sand cemented layer. Then applying a double surface Otta seal.

Activities Performed:

oPavement condition survey to identify defects;

oNon-destructive testing of base layer by means of DCP to ascertain its strength and remaining life;

oTraffic count and traffic characterization to ascertain traffic loads;

oPavement Design by using DCP technology;

oSelection of cost-effective upgrading options using the nearly available materials;

oPrepare contract documents and procurement of contractor;

oSupervision of the rehabilitation works.

Name of Project: Innovative Construction Techniques (Otta Seal) Pilot Projects, Moçambique. Funded by Sweden (SIDA).

Position: Pavement Engineer.

Main Project Features: The project entailed piloting suitability of Otta seal construction technique to Moçambique environment for low volume roads. The trials comprised of three projects in provinces of Maputo, Gaza and Inhambane each with a stretch of 25 kilometres. The concept was to use the readily available construction materials to sustain future similar projects. In Maputo the pavement consisted of readily available granular materials as base and Otta seal as a surface. In Gaza, the pavement consisted of lightly cemented (5%) sand base and surfaced by Otta seal. In Inhambane province, the base consisted of calcrete mechanically stabilised by fine sand. The budget for the projects was about 145 Million Meticas.

Activities performed:

oSelection of cost-effective pavement option in each province;

oTesting of locally available material to ascertain of their suitability as pavement materials;

oMechanically stabilizing calcrete by fine sand to obtain base material for low volume road in terms of plasticity and CBR. From this task, I managed to develop a decision support system/ software to select a suitable material for base. If material not suitable perform mechanical stabilisation;

oDesigning cement stabilised sand mixes for low volume roads;

oPreparing tender documents and procurement;

oSupervising the construction process.

Name of Project: Rehabilitation of Sehitwa - Shakawe Road, Botswana (230 kms).

Main Project Features: Rehabilitation of the road to restore pavement and associated structures.

Position: Regional Engineer

Activities Performed:

oPavement condition survey to identify defects;

oNon-destructive testing of base layer by means of DCP to ascertain its strength and remaining life;

oTraffic counts and traffic characterization to ascertain traffic load;

oPavement Design by using DCP technology;

oSelection of cost-effective rehabilitation options;

oPrepare contract documents and procurement of contractor;

oSupervision of the rehabilitation works.

Name of Project: Upgrading of Maun – Shorobe road (70 kms).

Main Project Features: Upgrading of sandy road to bitumen standard.

Position: Regional Engineer

Activities Performed:

oNon-destructive testing of subgrade soil layer by means of DCP to ascertain its strength;

oTraffic count and traffic characterization to ascertain traffic loads;

oPavement Design by using DCP technology;

oSelection of cost-effective upgrading options;

oPrepare contract documents and procurement of contractor;

oSupervision of the rehabilitation works.

ACADEMIC DISSERTATIONS RELEVANT TO THE ASSIGNMENT:

1.Selection of An Environmentally Appropriate Road Corridor Across A National Park Using Geographic Information system (GIS): Maun – Kasane Road, University of Stellenbosch, South Africa, 2006.

2.A Decision Support System for Contractor / Bidder Selection In Botswana, University of Bath, United Kingdom, 1997;

3.Design of Foundation for A Four Storey Structure in Water Logged Area in Dar-es-salaam, University of Dar-es-salaam, Tanzania, 1987.

14.0 PUBLICATIONS:

Analysis of Pavement Seals Deterioration in Western Cape Province Road Network, South Africa, 6th Africa Technology Transfer (T2) Conference. March, 2013. Gaborone, Botswana.

15.0 PARTICIPATION OF PREPARATION OF ROAD

MAINTENANCE MANUALS:

1.Participated fully in the preparation of Road Maintenance Manual for Botswana Roads, 2005;

2.Participated fully in the preparation of Road Maintenance Manual for Mocambique Roads, 2013.

Contact:

Eng. Danstan Silanda,

P.O. Box 31835, Cell +255-***-***-***; Email; adcbhc@r.postjobfree.com

Dar-es-salaam.

Tanzania.

Client Employer for the past five years:

1.Administracao National de Estradas (ANE),

Av. Mocambique, 1225 Maputo; Tel. 258-**-***-***,

Maputo, Mocamnbique. Attention – Eng. Luis Fernandes

2.GIBB Engineering,

54 Maxwell Drive,

Woodmead 2191,

Johannesburg, Tel. 27-11-519-****

RSA. Attention – Mr. Muzi Siyaya.

Referees:

1.Luis Fernandes,

Administracao National de Estradas (ANE),

Cell: +258-***-***-***; 258-******-***,

Email: adcbhc@r.postjobfree.com.

2.Dr. Silipius Mbawala,

Dar-es-salaam University of Technology,

Cell: +255-***-***-***; Email: adcbhc@r.postjobfree.com.

3.Dr. Elias Twagira,

Kigali,

Rwanda,

Cell: +250*********; Email: adcbhc@r.postjobfree.com

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