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Graduate Students

Doctoral Students

Amer Hmidan - Structural Emphasis
Research Area
By way of finite element modeling and experimental testing the interaction between CFRP (Carbon Fiber Reinforced Polymer) sheets and concrete/steel beams is being investigated. Effects of fatigue loading and temperature susceptibility are under investigation as to their contribution to deterioration effects.

Advisor: Dr. Frank Yazdani & Dr. Yail Jimmy Kim

Email: Amer.Hmidan@my.ndsu.edu
Anthony Waldenmaier - Transportation Emphasis
Research Area
The study of recycled asphalt pavement (RAP) for use in new flexible pavement projects. This includes investigation of physical and chemical properties for the development of strategies to utilize RAP in the pavement sub layers and the pavement surface.

Advisor: Dr. Magdy Abdelrahman

Email: Anthony.Waldenmaier@my.ndsu.edu
Suman Shrestha - Environmental Emphasis
Research Area
Humans and animals release natural estrogens as waste products. Synthetic hormones used for humans (e.g. hormone replacement therapy) and animals (e.g. to improve growth rates for cattle) also contribute to the environmental loading. These emerging contaminants are highly potent endocrine disrupter compounds (EDC's) capable to adversely affect aquatic organisms at parts per trillion concentration. Excretion of estrogens through urinary route in the conjugated form covers significant portion of total estrogen excretion. Although estrogen conjugates are considered innocuous, they may be readily deconjugated to form free estrogens. This research uses a radiotracer based approach to study fate and transformation of an estrogen conjugated to a glucuronide moiety (17b-estradiol-3-glucuronide) in a soil-water batch system.

Advisor: Dr. G Padmanabhan

Email: Suman Shrestha@my.ndsu.edu
Harjyoti Kalita - Material Science and Nanotechnology Program
H KalitaResearch Area
The prime objective of my research is the synthesis of biodegradable polymer coated nanoparticles for environmental and biomedical applications. Polysiloxane and soybean oil based amphiphilic polymers have been synthesized within this project. Biodegradation of these polymers and polymer coated nanoparticles are also tried.

Advisor: Dr. Achintya Bezbaruah
Co-advisor: Dr. Bret Chisholm

Email: Harjyoti.Kalita@my.ndsu.edu
Talal Almeelbi - Environmental Emphasis
T. AlmeelbiResearch Area
Water and wastewater phosphorus remediation using iron nanoparticles. Bare and surface modified nanoparticles are used in this project.

Advisor: Dr. Achintya Bezbaruah

Email: Talal.Almeelbi@ndsu.edu

Chunju Gu - Material Science and Nanotechnology Emphasis
S.ShanbhogueResearch Area
Fundamental study of the molecular interactions between different constituents of nanocomposite materials such as polymer clay nanocomposites and natural bones with the aid of spectroscopy, and relate them to nanomechanical properties of these materials.

Advisor: Dr. Kalpana Katti
Co-Advisor: Dr. Dinesh Katti

Email: Chunju.Gu@my.ndsu.edu
Dhritikshama Roy - Environmental Emphasis
Research Area
Polydimethylsiloxane and other polymers are used in surface modification of nanoparticles for environmental remediation. Low molecular PDMS are biodegradable in a particular soil moisture condition; however, high molecular PDMS are non-biodegradable in both soil and water. Biodegradation of PDMS is tested for the research using both pure and mix microbial consortium. Work is also being done on the nitrification of ammonia oxidizing archaea (AOA).

Advisors: Dr. Achintya Bezbaruah & Dr. Eakalak Khan

Email: Dhritikshama.Roy@ndsu.edu
Ehab Noureldin - Pavement Materials
Research Area
As it is important to retain virgin aggregates for the future generations and in the same time to reuse the waste materials generated from the pavement industry in an useful way to our environment. My research work in this area is related to utilizing Recycled Asphalt Pavement (RAP) in the base layer of the pavement cross-section. The base layer in the flexible pavements is the main component that is responsible on carrying the loads of traffic and increasing the structural capacity of this layer leading to a longer life time for the pavement.

Advisors: Dr. Magdy Abdelrahman

Email: Ehab.Noureldin@my.ndsu.edu
Jun Yang - Water Resources / Hydrology Emphasis
Research Area
My current research focuses on surface delineation, hydrologic connectivity analysis, effects of the microtopography on hydrologic processes, puddle-to-Puddle (P2P) overland flow modeling, and multi-scale P2P overland flow modeling.

Advisor: Dr. Xuefeng (Michael) Chu

Email: Jun.Yang.2@my.ndsu.edu
Yaping Chi - Water Resources / Hydrology Emphasis
Research Area
My current research focuses on "combined experimental and modeling study on overland flow generation”. Specifically, I characterize surface microtopography using different methods, do the experiments on microtopography controlled overland flow generation, and compare the experimental results with the simulated results by applying the P2P (puddle to puddle) modeling system.

Advisor: Dr. Xuefeng (Michael) Chu

Email: Yaping.Chi@my.ndsu.edu

Masters Students

Garrett Brunell - Structural Emphasis
Garrett Brunell Research Area
Both computer modeling with finite element analysis and experimental testing are being performed for structural rehabilitation of steel beams and trusses retrofit with composite materials. Two areas of research include; CFRP (carbon fiber reinforced polymer) sheets used for flexural strengthening of wide-flange beams and post-tensioned CFRP rods for rehabilitating damaged steel trusses.

Advisor: Dr. Jimmy Kim

Email: Garrett.Brunell@my.ndsu.edu
Fuad Khan - Structural Emphasis
Research Area


Advisor: Dr. Jimmy Kim

Email: mdFuad.Khan@my.ndsu.edu
Austin Lafromboise - Structural Emphasis
Research Area
The exact topic for research has not been decided yet.

Advisor: Dr. Jimmy Kim

Email: Austin.Lafromboise.1@my.ndsu.edu
Tom Schanandore - Structural Emphasis
Research Area
Present research includes the development of a smart composite laminate system for structural rehabilitation, based on piezoelectric actuators. Material-level experimental investigations are conducted with predictive modeling.

Advisor: Dr. Jimmy Kim

Doug Sharbono
Research Area
The study includes the structural behavior of low-rise buildings subjected to extreme load effects. Finite element modeling is a major research approach to address such behavior. Research results are expected to improve present code provisions.

Advisor: Dr. Jimmy Kim

Daniel Bogart - Water Resources / Hydrology Emphasis
Research Area
Work is being performed on the effect of microtopography on the characterization of the hydrograph. Improved models of the partition between infiltration and runoff generation, flow path delineation and sink filling have given way to better accuracy in predicting hydrographs at the watershed's outlet. This study involves a scaled down look into the microcosm that is small depressions in their effect on the time to ponding, time of concentration and total excess rainfall.

Advisor: Dr. Xuefeng (Michael) Chu

Email: Daniel.Bogart@my.ndsu.edu
Navaratnam Leelaruban - Water Resources Emphasis
Research Area
Analysis of drought impact and severity using derived indices based on U.S. Drought Monitor data. Application of Geographical Information System (GIS) and Remote Sensing technique to validate the indices and display spatio-temporal variations of drought respectively. Study of drought–yield relationship using derived indices and county wide yield data.

Advisor: Dr. G. Padmanabhan

Email: Navaratnam.Leelaruban@my.ndsu.edu
Rabiya Shabnam - Environmental Emphasis
Research Area
This research is aimed at understanding the interaction of gram negative bacteria with nanoscale zero-valent iron (NZVI) particles. The effects of NZVI on the growth of select bacterial species, Escherichia coli (ATCC 8739 & JM109) and Pseudomonas putida F1, are studied under different environmental conditions like temperature, stirring/shaking speed, presence of microbial nutrients, and the concentration of NZVI.

Advisor: Dr. Achintya Bezbaruah

Email: Rabiya.Shabnam@my.ndsu.edu
Michael Quamme - Environmental Emphasis
Research Area
Phosphorous and Selenite remediation using bare and polymer encapsulated iron nanoparticles.

Advisor: Dr. Achintya Bezbaruah

Email: Michael.Quamme@ndsu.edu
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