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Jan 11, 2018Open    AccessArticle

Computer Aided System for Manufacturing Industries Economic Production Status Determination

Basil Olufemi Akinnuli, Eugene C. Kalu-Imo, Anakobe Jimoh Yakubu
Performance status has to do with profitability of manufacturing industries. Good performance brings about increase in productivity. There are in existence different models and software, but none has been able to develop software based on American Productivity Center model (APC). The strategic decisions required were identified as: Factor Productivity, Price Recovery and Cost Effectiveness ind

Dec 29, 2017Open    AccessArticle

Design and Development of Vehicle Reversing Brake Assist System

Wei Guo, Yuheng Qiao
Through the analysis of the current vehicle reversing braking system, the paper introduces the safety hazard of the vehicle in the reversing state and the factors that affect reversing braking effect and the weakness of control system. Aiming at the existing problems, designing and development of vehicle reverse brake assist system. This method that uses the STC12C5A60S2 single-chip receives GPS vehicle speed signal, and reversing

May 03, 2017Open    AccessArticle

An Absorption-Adsorption Apparatus for Gases Purification from SO2 in Power Plants

Christo Boyadjiev, Boyan Boyadjiev
Different companies propose methods and apparatuses for waste gases purification from SО2 using two-phase absorbent (CaCO3 suspension).The basic problem of the carbonate absorbents is that its chemical reaction with SO2 leads to CO2 emiss

Jun 17, 2016Open    AccessArticle

Design and Off-Design Performance Evaluation of Heat Exchanger in an Offshore Process Configuration

Sidum Adumene, Thaddeus C. Nwaoha, Garrick P. Ombor, Joshua T. Abam
This research evaluates the thermal performance of an industrial heat exchanger for process in the offshore industry. Steady state monitoring and performance data were collected from 3-E-401 heat exchanger in an offshore environment. Design and off-design evaluation was carried out using capacity ratio, effectiveness, Log Mean Temperature Difference (LMTD), heat duty, and overall heat transfer coefficient as performance indicators

Jul 02, 2015Open    AccessArticle

Monitoring and Evaluation of Physical Facilities of the Bulacan State University: Basis for the Development of Facility Management Policy Guide

Romulo B. Panotes
The objective of this study is to analyze the extent of monitoring and evaluation of the physical facilities of Bulacan State University as basis for the development of a facility management policy guide. The respondents of the study were members of the administrative and academic council and all of the support staff in the university. Findings revealed that the administrators assessed that the physical facilities, Buildings, Classrooms, Library, Laboratory, Assembly and Athletic Facilities, Med...

May 11, 2015Open    AccessArticle

Durability of Hot Asphalt Mixtures Containing Reclaimed Asphalt Pavements

Saad El Hmrawey, Ahmed Ebrahim Abu El Maaty, Abdulla Ibrahim Elmohr
The durability potential of bituminous mixtures may be defined as the resistance of the mixture to the continuous and combined damaging effects of water. High durability potential usually implies that the mechanical behavior of the mixture will endure for a long service life. Now, flexible pavement, made of hot-mix asphalt (HMA) with the addition of the reclaimed asphalt pavement granules in the central asphalt mixing plant, is increasingly used. The amount of the added reclaimed asphalt pavemen...

Jan 28, 2015Open    AccessArticle

Identification and Ceramic Application of Some Tunisian Clays

Salah Mahmoudi, Ezzeddine Srasra, Fouad Zargouni
Mineralogy, chemistry, and plasticity of the raw clay materials, outcropping in different Tunisian domains were studied. These clays constitute the only mineral resource of the ceramic industries in Tunisia, and are exploitable at eight quarries. Powder X-ray diffraction analysis revealed that illite and kaolinite are the major mineral phases. However, other clay minerals, such as illite/ smectite mixed-layer, and chlorite are also present. The associated minerals detected in powdered materials ...

Jan 15, 2015Open    AccessArticle

Relevance of Microstructure on Optical Properties of Thermally Evaporated Indium Oxide Thin Films

Parveen Jain, Sukhvir Singh, Avanish Kumar Srivastava, Sandeep Kumar Pundir, Azher Majid Siddiqui
Nanocrystalline indium oxide thin films of thickness about 100 nm have been deposited using thermal vacuum evaporation technique at room temperature on glass and quartz substrates and subsequently annealed at different temperatures (150℃, 200℃, 250℃, 300℃, 350℃, 500℃ and 700℃) for 2 hr and 4 hr in the oxygen atmosphere. Structural and optical properties of these films have been investigated by using XRD, SEM, HRTEM, AFM, UV-Visible, and photoluminescence spectroscopy. Response of gas towards the...

Nov 28, 2014Open    AccessArticle

Portable Rice Hull Stove: An Innovation

Eduardo Zeta Ramis
This research is an innovation of the portable rice hull stove equipment to save time, investment, manpower and the environment. A desired distance of 5 cm bottom height of the inside burner from ash retainer is obtained as the critical point in achieving the best combustion process. The unique characteristic of this innovative design is the perforated inside and outside burners and the detachable inside burner for easy replacement and durability of this stove. Specifically, this rice hull stove...

Nov 13, 2014Open    AccessArticle

Effect of Austempering Time on Microstructure and Wear Resistance of Ductile Iron Castings

Mustafa A. Rijab, Ali I. Al-Mosawi
An experimental investigation was carried out to study the structure of ductile iron castings which were selected to perform the investigation: 1.4% Ni - 0.3 Mo and 2.4% Ni - 0.3 Mo. After austenitizing at 880℃ for 1.3 hr, the two alloys were austempered at 250℃ and 350℃ for time intervals of 60, 120, 240 minutes. Microstructure observation and measurement of UTS, and adhesive wear resistances were reported as functions of austempering time. The results also showed that the obtained structure pr...