Rozzeta Dolah

Rozzeta Dolah
Massachusetts Institute of Technology | MIT · Department of Mechanical Engineering

Doctor of Philosophy in Mechanical Engineering

About

34
Publications
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116
Citations
Introduction
Rozzeta Dolah currently works at the Department of Mechanical Engineering , Massachusetts Institute of Technology. Rozzeta does research in Renewable Energy, Water/Oil Solvent Extraction, Industrial Engineering, Mechanical Engineering and Quality Assurance Engineering. Their current project is 'Renewable Energy Case studies used from Biomass Energy'.

Publications

Publications (34)
Article
The concerning waste management issue of natural fibers and the downsides of synthetic fibers have governed natural fibers’ utilization as reinforcements in composites. Incorporating a single type of reinforcing fiber does not inevitably produce composites that meet exceptional quality standards, particularly in dynamic mechanical properties. Vario...
Chapter
The depletion of known petroleum reserves necessitates the development of new renewable energy-based solutions as alternatives to petroleum-based transportation fuels. Increasing energy consumption, limited fuel reserves, and climate change are major challenges of the 21st century. In 2016, the contribution of crude oil to the world’s energy consum...
Article
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Biomass is an important renewable energy resource which primarily contributes to heating and cooling end use sectors. It is also a promising alternative source of biofuels to replace the depleting supply of fossil fuels. Surprisingly, few writers have been able to draw on the feedstock significance for oil palm empty fruit bunch (EFB) as the biomas...
Article
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Utilizing agro-waste material such as rice husk (RH) and coco peat (CP) reinforced with thermoplastic resin to produce low-cost green composites is a fascinating discovery. In this study, the effectiveness of these blended biocomposites was evaluated for their physical, mechanical, and thermal properties. Initially, the samples were fabricated by u...
Article
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Methadone Flexi Dispensing Service (MFlex) has been officially re-branded from Methadone 1Malaysia Service (M1M) since 2nd January 2019. Patients under MFlex are frequently taking their methadone according to a plan provided by pharmacist at public clinic. From the dose monitoring taken annually, pharmacists can predict critical patients based on h...
Article
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A robust measurement system in the Taguchi Method as a testing method should be explained from the beginning of an experimental design until the application of the optimum condition. Measurement has always been described either by discussing the measurement concepts theoretically or demonstrating a case study on how the data measurement is being do...
Article
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The objective of this research is to optimize the alkaline treatment variables, including sodium hydroxide (NaOH) concentration, soaking, and drying time, that influence the mechanical behavior of bamboo fiber-reinforced epoxy composites. In this study, a Box–Behnken design (BBD) of the response surface methodology (RSM) was employed to design an e...
Article
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A natural fiber including kenaf fibers that reinforce with polymeric composite has increased attention in the manufacturing industries. However, the poor adhesion between fiber and matrix are commonly encountered respectively to their compatibility nature namely hydrophilic and hydrophobic. Therefore, alkaline treatment has introduced to reduce the...
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Lean tools and applications have been adopted globally by many companies and industries such as automotive, aerospace, healthcare, pharmaceutical, shipbuilding, public services, project management and several others. The most basic of lean tools can be distinguished by the following: Value Stream Mapping (VSM), 5S and Kaizen, and many have agreed t...
Article
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A Shipyard is trying to change but facing employee Resistance to Change (RTC). Resistance is attributed to the dysfunctional organisational context in the form of technical and political/structural discourse giving rise to non-conformance behaviour. An action research was conducted to identify the hidden underlying behaviour of the employees causin...
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Fast-Pyrolysis is a well-known technology for breaking down molecular composition of organic materials into gas and liquid forms by mean of high temperature treatment in the absence of oxygen. Reactors accommodating this means of transformation has been variously designed and implemented in bench-scale as well as pilot and commercial scales. In thi...
Article
The attractions to kenaf fiber as reinforcement in polymer composite are getting wider. However, the hydrophilic in nature is one of the affecting factors to their properties. Treatment to the fiber using sodium hydroxide (NaOH) has significantly proven to improve the drawback. This paper presents the mechanical properties of untreated and treated...
Article
The attractions to kenaf fiber as reinforcement in polymer composite are getting wider. However, the hydrophilic in nature is one of the affecting factors to their properties. Treatment to the fiber using sodium hydroxide (NaOH) has significantly proven to improve the drawback. This paper presents the mechanical properties of untreated and treated...
Conference Paper
Full-text available
The attractions to kenaf fibre as reinforcement in polymer composite are getting wider. However, the hydrophilic in nature is one of the affecting factors to their properties. Treatment to the fibre using sodium hydroxide (NaOH) has significantly proven to improve the drawback. This paper presents the mechanical properties of untreated and treated...
Article
Full-text available
The Mahalanobis-Taguchi System (MTS) is a data mining method employing Mahalanobis distance (MD) and Taguchi’s Robust Engineering philosophy to explore and exploit data in a multidimensional system. The MD calculation provides a measurement scale to discriminate sample data and gives an approach of measuring the level of severity among them. One un...
Article
Market demand on system-on-chip (SoC) using ball-attach technologies, it is time for ball-attach module to have an improvement on their capabilities within limited resources (man and machine). This paper identifies caused of factor which contributes more time to production time. Justification on improving ball-attach module cycle time during high v...
Article
Full-text available
Spectrum band from 698-960 MHz has been identified for International Mobile Telecommunications (IMT) by International Telecommunication Union (ITU). This paper provides the analysis of potential scenarios on the band plans for mobile broadband using IMT systems in the 698-960 MHz band based on the published recommendations from ITU and from 3rd Gen...
Chapter
Full-text available
Quality Engineering (QE) is the most significant essence in Japan for product and process development. There is not much to argue about how Japan has become a world-leading country in various sectors, from automotive to semiconductor, from medicine to agriculture, and from macro to nano device fabrication. The most prominent reason that the rival w...
Article
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Standardized methods for conducting a T-peel test have been well established for rigid materials, but are not suitable for flexible film because of variations in peel strength. The purpose of this paper is to provide an experimental procedure for a T-peel adhesion test and determine optimum conditions by considering the effect from alternate peel s...
Conference Paper
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This paper is using practical case study of robust design engineering. Effect of control factors and optimum condition is studied to design a more robust Paper Permeability Tester. In this study, robustness means decreasing uncertainty that is validity of measurement results with the Tester. Robustness is required to ensure the reliabilityfor the m...
Conference Paper
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As many researches focused on application of robust design engineering in practical case study, very less concerned on the criticality to data measurement system in parameter design. This paper will emphasize on the importance to be critical to data. The existance of outliers is often ignored and the impact is overlooked, thus endanger the experime...
Conference Paper
Full-text available
Methods of uncertainty evaluation of the components in the permeability tester were developed in this study. The measurement procedure was developed to evaluate uncertainty. Under measurement procedure, the uncertainty of each error factor is considered by calculating zero calibration error, scale reading error, repetition error, and component erro...
Article
Full-text available
As many research focused on robustness methodology, this paper discuss on how to implement these methodology concept from the management perspective. Guidelines and appropriate strategies are discussed on Quality Engineering (QE) implementation in an organization and experimentation. Firstly, the experience of a company implementing QE is presented...
Conference Paper
Full-text available
Flexible packaging film is widely used in many packaging applications, and the most significant characteristic of the film is its peel strength. Thus, it is imperative to have proper evaluation method to obtain its peel strength property in order to have accurate characteristics of the film, which would enable further development of flexible packag...
Conference Paper
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Raman spectroscopy is a fundamental method for chemical analysis in besides IR, NMR, and XRD. As well as infrared absorption, Raman scattering is generated by the motion of molecular vibration. When a single frequency light is projected to the materials, scattering light is observed. In plastic, impurity materials that radiate fluorescence are mixe...
Conference Paper
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In recent years, wide range of adhesive performance improvement has led to various adhesive developments encouraged by increasing demand in industries such as semiconductor and medical fields. In order to perform development of an adhesive simultaneously with quality control, it becomes important to investigate the adhesive performance to its usage...
Conference Paper
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Aluminum-Polyethylene terephthalate (PET) film is widely used in many packaging applications, such as medical industry and electrical insulations. The improvement in PET packaging film has been done in several test methods; one of the most promising is peel test to measure the peel strength of adhesion. Some test method or standard does not satisfy...
Article
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Etching process involves various chemical reactions and reflects significantly on the silicon wafer quality. The paper addresses the major problem on wafers during etching that is wafer removal distribution throughout etching drum compartment. The etchant used in this study were the composition of HNO 3, HF, and CH 3COOH. The etching drum has been...
Conference Paper
Full-text available
Etching process involves various chemical reactions and reflects significantly on silicon wafer quality. Etching parameters are evaluated in order to optimize the isotropic etching process. For optimization purpose, Design of Experiment (DOE) with full factorial design is employed. Etching factors namely the bubbling flow rate, wafer rotation, and...
Article
Full-text available
Etching process involves various chemical reactions and reflects significantly on silicon wafer quality. This master project addresses the major problem on wafers during etching that is wafer removal distribution throughout etching drum compartment. The etching drum has been redesigned to overcome the lower removal problem at the end of each compar...

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Projects (2)
Project
I am currently a post doctoral fellow at Massachusetts Institute of Technology (MIT), Cambridge, USA with expertise in robust quality engineering for nanotechnology in renewable energy. My area of interest are in microfluidic and nanofluidic transport system for energy conversion from biomass into aviation fuel, with particular emphasis on the technical experimental design including Taguchi method and optimization. As Minitab trainer, I involve mainly in process robustness against variation in order to boost yield and production of a system. I have worked in several labs and have lead the design and optimization of a biomass reactor for second generation pyrolysis for bio fuel conversion and adhesion in flexible packaging film. I have also had access to a broad range of industrial application utilizing robust statistical optimization using Minitab17. As a post doctoral at Microfluidic and Nanofluidic Research Laboratory, under Department of Mechanical Engineering at MIT, and having the experience in robust measurement and metrology at Meiji University, Japan; my research has enabled me to develop skills in robust engineering method for nanotechnology.