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Articles 11731 - 11760 of 13873

Full-Text Articles in Operations Research, Systems Engineering and Industrial Engineering

Ceramic Properties Of Chimala Kaolin Clay, Leonard Akwilapo Jun 2005

Ceramic Properties Of Chimala Kaolin Clay, Leonard Akwilapo

Tanzania Journal of Engineering and Technology (TJET)

The physico-chemical properties of kaolinite clays occurring in abundance near Chimala were studied with a view of finding out their suitability in sanitary ware production. The viscosity of the clay was found to be within the range acceptable in industrial application (≤ 500 cp for 70% solids), enhancing its prospects for the manufacture of slip cast shapes with satisfactory properties. The chemical composition of the clay reveals a high content of Fe₂O₃, 1.48%, which is expected to affect the translucency and colour of the finished ware. However, such quantity would not have detrimental effects in the production of sanitary ware. …


Earth Building In Tanzania - Use Of Soil Stabilized Bricks And Blocks, A Mrema Jun 2005

Earth Building In Tanzania - Use Of Soil Stabilized Bricks And Blocks, A Mrema

Tanzania Journal of Engineering and Technology (TJET)

This paper presents experimental results of investigations done on the use of stabilized earth (soil) for the manufacture of bricks and blocks. The soil used was clayey sand of low plasticity. Two types of stabilizers were used to make stabilized bricks and these were cement and a combination of cement and lime. Different stabilizer proportions were employed. Results of tests carried on these bricks at 28 days indicate an optimum mix proportion of 7% cement if cement is used alone and an optimum mix proportion of 5% each if a combination of lime and cement is used as a stabilizer. …


Degradation Of Waterfront Reinforced Concrete Structures At The Port Of Dar Es Salaam, I Sanga Jun 2005

Degradation Of Waterfront Reinforced Concrete Structures At The Port Of Dar Es Salaam, I Sanga

Tanzania Journal of Engineering and Technology (TJET)

The paper summarises the results of an investigation done on piers at the Dar es Salaam Port. The problem facing these structures and marine facilities is their exposure to aggressive environmental phenomena. The paper presents an investigation of the strength and corrosion of concrete seaport piers so as to determine degradation of the reinforced concrete waterfront structures in the port of Dar es Salaam. For instance the structures at a dhow quay terminal had been in use for about 100 years. The facility was in bad condition as the concrete had been badly damaged due to corrosion. Some of the …


Cement Oonded Wood Wool Board As A Building Material For Low Cost Housing, A Mrema Jun 2005

Cement Oonded Wood Wool Board As A Building Material For Low Cost Housing, A Mrema

Tanzania Journal of Engineering and Technology (TJET)

This paper gives results of a preliminary study on the properties of cement bonded wood-wool boards manufactured as composites by using wood-wool (excelsior) from podocarpus spp wood species and ordinary Portland cement. Two main parameters were varied during the investigation and these were the width of the wood-wool and the cement to wood-wool ratio. Results show that the optimum mix proportion is three parts of cement to two parts of wood-wool by weight and that a smaller excelsior width gives higher board strengths. The results from tests on flexural strength, compressive strength and tensile strength far exceeded the requirements of …


Low Cost Slab Manufactured From Masonry Slab Elements, John Makunza Jun 2005

Low Cost Slab Manufactured From Masonry Slab Elements, John Makunza

Tanzania Journal of Engineering and Technology (TJET)

The construction of bungalow houses requires sufficient space to accommodate all the requirements as per the client’s wish. The idea of low-rise or high rise buildings is very remote for most of the people due to the high costs of construction involved. Much of the said cost is due to the concrete floor slab as it consumes a bigger portion of concrete material when compared to beams and columns. In this paper, a study presented is on a new form of voided slab constructed from masonry slab elements that do not utilize formwork and consumes less concrete material. The slab …


The Use Of Rfid In Manufacturing And Packaging Technology Laboratories, Manocher Djassemi, Jay Singh Jun 2005

The Use Of Rfid In Manufacturing And Packaging Technology Laboratories, Manocher Djassemi, Jay Singh

Industrial Technology and Packaging

Mandated use of Radio Frequency Identification (RFID) on goods at pallet, case and item level continues to churn the Consumer Product Goods (CPG), logistics and retail industry. The statement “Internet of things” is slowly becoming true; with concerted efforts from standard setting bodies such as Electronic Product Code (EPC) global, International Standards Organization (ISO), Fast Moving Consumer Goods (FMCG) companies like Gillette, P&G and major retailers like Wal-Mart, TESCO, and the US DoD, to replace barcodes with RFID tags. RFID bridges many areas of manufacturing including inventory management, assembly operation, material handling, packaging and shipping by providing an accurate and …


Algorithmic Analysis Of The Maximum Level Length In General-Block Two-Dimensional Markov Processes, Jesus R. Artalejo, Srinivas R. Chakravarthy Jun 2005

Algorithmic Analysis Of The Maximum Level Length In General-Block Two-Dimensional Markov Processes, Jesus R. Artalejo, Srinivas R. Chakravarthy

Industrial & Manufacturing Engineering Publications

Two-dimensional continuous-time Markov chains (CTMCs) are useful tools for studying stochastic models such as queueing, inventory, and production systems. Of particular interest in this paper is the distribution of the maximal level visited in a busy period because this descriptor provides an excellent measure of the system congestion. We present an algorithmic analysis for the computation of its distribution which is valid for Markov chains with general-block structure. For a multiserver batch arrival queue with retrials and negative arrivals, we exploit the underlying internal block structure and present numerical examples that reveal some interesting facts of the system.


The Effectiveness Analysis Of The Online Tools For Engineering Faculty Needs, Ismail Fidan, Jianbiao Pan, Leijun Li Jun 2005

The Effectiveness Analysis Of The Online Tools For Engineering Faculty Needs, Ismail Fidan, Jianbiao Pan, Leijun Li

Industrial and Manufacturing Engineering

As the use of Internet is increasing dramatically, many faculty members are using it in their teaching, research, and services. The Internet also provides faculty easy access to employee benefits and other information. Many universities are using or plan to use online teaching. Lately, many editorial and funding agencies have also started to initiate online review and decision-making system. These systems have eased the burden on both reviewers and agencies. In this study, a survey was prepared and conducted to investigate the effectiveness of the online tools for faculty needs in authors’ institutions and some other United States universities. The …


Fouling Mitigation By Design, J. M. Nesta, C. A. Bennett Jun 2005

Fouling Mitigation By Design, J. M. Nesta, C. A. Bennett

Heat Exchanger Fouling and Cleaning - Challenges and Opportunities

No abstract provided.


Mathematical Modeling Of Deposition Of Carbonaceous Material From Heavy Hydrocarbon Vapors, Wenxing Zhang, A. Paul Watkinson Jun 2005

Mathematical Modeling Of Deposition Of Carbonaceous Material From Heavy Hydrocarbon Vapors, Wenxing Zhang, A. Paul Watkinson

Heat Exchanger Fouling and Cleaning - Challenges and Opportunities

No abstract provided.


Deposit Formation In The Evaporator Of A Sulphuric Acid Recovery Plant For Tio 2 Pigment Production, H. Müller-Steinhagen, D. Lancefield Jun 2005

Deposit Formation In The Evaporator Of A Sulphuric Acid Recovery Plant For Tio 2 Pigment Production, H. Müller-Steinhagen, D. Lancefield

Heat Exchanger Fouling and Cleaning - Challenges and Opportunities

No abstract provided.


Fouling Behavior Of Pyrolysis Gasoline Over Carbon Steel And Stainless Steel Alloys, Michael Sprague, Patricio Herrera, Andrzej Krzywicki Jun 2005

Fouling Behavior Of Pyrolysis Gasoline Over Carbon Steel And Stainless Steel Alloys, Michael Sprague, Patricio Herrera, Andrzej Krzywicki

Heat Exchanger Fouling and Cleaning - Challenges and Opportunities

No abstract provided.


Deposition From Crude Oils In Heat Exchangers, A. Paul Watkinson Jun 2005

Deposition From Crude Oils In Heat Exchangers, A. Paul Watkinson

Heat Exchanger Fouling and Cleaning - Challenges and Opportunities

No abstract provided.


Development And Evaluation Of Ni–Cu–P–Ptfe Composite Coatings To Minimize Microbial Adhesion, Q. Zhao, Y. Liu, C. Wang, S. Wang, Hans M. Müller-Steinhagen Jun 2005

Development And Evaluation Of Ni–Cu–P–Ptfe Composite Coatings To Minimize Microbial Adhesion, Q. Zhao, Y. Liu, C. Wang, S. Wang, Hans M. Müller-Steinhagen

Heat Exchanger Fouling and Cleaning - Challenges and Opportunities

No abstract provided.


Fouling Mitigation Of A Reboiler By Optimization Of Additive And Operating Conditions, Shinji Isogai, Mitsutaka Nakamura Jun 2005

Fouling Mitigation Of A Reboiler By Optimization Of Additive And Operating Conditions, Shinji Isogai, Mitsutaka Nakamura

Heat Exchanger Fouling and Cleaning - Challenges and Opportunities

No abstract provided.


Ten Years Of Ebert, Panchal And The ‘Threshold Fouling’ Concept, D. I. Wilson, G. T. Polley, S. J. Pugh Jun 2005

Ten Years Of Ebert, Panchal And The ‘Threshold Fouling’ Concept, D. I. Wilson, G. T. Polley, S. J. Pugh

Heat Exchanger Fouling and Cleaning - Challenges and Opportunities

No abstract provided.


Particulate Fouling Growth Rate As Influenced By The Change In The Fouling Layer Structure, M. S. Abd-Elhady, C.C. M. Rindt, J. G. Wijers, A. A. Van Steenhoven Jun 2005

Particulate Fouling Growth Rate As Influenced By The Change In The Fouling Layer Structure, M. S. Abd-Elhady, C.C. M. Rindt, J. G. Wijers, A. A. Van Steenhoven

Heat Exchanger Fouling and Cleaning - Challenges and Opportunities

No abstract provided.


A Preliminary Study Of The Effect Of Surface Coating On The Initial Deposition Mechanisms Of Dairy Fouling, S. S. Ramachandra, S. Wiehe, M. M. Hyland, X. D. Chen, B. Bansal Jun 2005

A Preliminary Study Of The Effect Of Surface Coating On The Initial Deposition Mechanisms Of Dairy Fouling, S. S. Ramachandra, S. Wiehe, M. M. Hyland, X. D. Chen, B. Bansal

Heat Exchanger Fouling and Cleaning - Challenges and Opportunities

No abstract provided.


Extraction Of Crude Oil Fouling Model Parameters From Plant Exchanger Monitoring, G. T. Polley, D. I. Wilson, S. J. Pugh, E. Petitjean Jun 2005

Extraction Of Crude Oil Fouling Model Parameters From Plant Exchanger Monitoring, G. T. Polley, D. I. Wilson, S. J. Pugh, E. Petitjean

Heat Exchanger Fouling and Cleaning - Challenges and Opportunities

No abstract provided.


The Fouling Of Alloy-800 Heat Exchanger Tubes By Nickel Ferrite Under Bulk Boiling Conditions, J. J. Cossaboom, D. H. Lister Jun 2005

The Fouling Of Alloy-800 Heat Exchanger Tubes By Nickel Ferrite Under Bulk Boiling Conditions, J. J. Cossaboom, D. H. Lister

Heat Exchanger Fouling and Cleaning - Challenges and Opportunities

No abstract provided.


Anti-Fouling Stainless Steel Based Surfaces For Milk Heating Processes, R. Rosmaninho, G. Rizzo, H. Müller-Steinhagen, L. F. Melo Jun 2005

Anti-Fouling Stainless Steel Based Surfaces For Milk Heating Processes, R. Rosmaninho, G. Rizzo, H. Müller-Steinhagen, L. F. Melo

Heat Exchanger Fouling and Cleaning - Challenges and Opportunities

No abstract provided.


Blending Effects On Fouling Of Four Crude Oils, Z S. Saleh, R. Sheikholeslami, A. Paul Watkinson Jun 2005

Blending Effects On Fouling Of Four Crude Oils, Z S. Saleh, R. Sheikholeslami, A. Paul Watkinson

Heat Exchanger Fouling and Cleaning - Challenges and Opportunities

No abstract provided.


Analytical Approaches For Calculation Of Shear Stress Enhancement In Laminar Pulsed Flows, M. S. Celnik, M. J. Patel, M. Pore, F. Brahim, W. Augustin, S. Scholl, D. M. Scott, D. I. Wilson Jun 2005

Analytical Approaches For Calculation Of Shear Stress Enhancement In Laminar Pulsed Flows, M. S. Celnik, M. J. Patel, M. Pore, F. Brahim, W. Augustin, S. Scholl, D. M. Scott, D. I. Wilson

Heat Exchanger Fouling and Cleaning - Challenges and Opportunities

No abstract provided.


Today’S Techniques For Heat Exchanger Protection Via Particle Filtration, Kathy Colby, Caroline Hoffman Jun 2005

Today’S Techniques For Heat Exchanger Protection Via Particle Filtration, Kathy Colby, Caroline Hoffman

Heat Exchanger Fouling and Cleaning - Challenges and Opportunities

No abstract provided.


Heat Treatment Of Dairy Product By A Flat Ohmic Cell: Impact Of The Reynolds Number, Fluid Rheology And Fouling Presence On The Electrode Surface Temperature, M. A. Ayadi, T. Benezech, F. Chopard, M. Berthou, J. C. Leuliet Jun 2005

Heat Treatment Of Dairy Product By A Flat Ohmic Cell: Impact Of The Reynolds Number, Fluid Rheology And Fouling Presence On The Electrode Surface Temperature, M. A. Ayadi, T. Benezech, F. Chopard, M. Berthou, J. C. Leuliet

Heat Exchanger Fouling and Cleaning - Challenges and Opportunities

No abstract provided.


Tubular Type Heat Flux Meter For Monitoring Internal Scale Deposits In Large Steam Boilers, J. Taler, D. Taler Jun 2005

Tubular Type Heat Flux Meter For Monitoring Internal Scale Deposits In Large Steam Boilers, J. Taler, D. Taler

Heat Exchanger Fouling and Cleaning - Challenges and Opportunities

No abstract provided.


Fouling Of Heat Exchangers By Dairy Fluids – A Review, Bipan Bansal, Xiao Dong Chen Jun 2005

Fouling Of Heat Exchangers By Dairy Fluids – A Review, Bipan Bansal, Xiao Dong Chen

Heat Exchanger Fouling and Cleaning - Challenges and Opportunities

No abstract provided.


Skim Milk Fouling During Ohmic Heating, Bipan Bansal, Xiao Dong Chen, Sean X Q Lin Jun 2005

Skim Milk Fouling During Ohmic Heating, Bipan Bansal, Xiao Dong Chen, Sean X Q Lin

Heat Exchanger Fouling and Cleaning - Challenges and Opportunities

No abstract provided.


Pulsed Flow Cleaning Of Whey Protein Fouling Layers, K. Bode, R. J. Hooper, W. Augustin, William R. Paterson, D. I. Wilson, S. Scholl Jun 2005

Pulsed Flow Cleaning Of Whey Protein Fouling Layers, K. Bode, R. J. Hooper, W. Augustin, William R. Paterson, D. I. Wilson, S. Scholl

Heat Exchanger Fouling and Cleaning - Challenges and Opportunities

No abstract provided.


Strategies Against Particle Fouling In The Channels Of A Micro Heat Exchanger Subject To Μpiv Flow Pattern Measurements, V. Heinzel, A. Jianu, H. Sauter Jun 2005

Strategies Against Particle Fouling In The Channels Of A Micro Heat Exchanger Subject To Μpiv Flow Pattern Measurements, V. Heinzel, A. Jianu, H. Sauter

Heat Exchanger Fouling and Cleaning - Challenges and Opportunities

No abstract provided.