Civil Engineering Commons^™

Performance Optimization Of Microbial Fuel Cell (Mfc) Using Lactobacillus Bulgaricus, Rita Arbianti, Tania Surya Utami, Heri Hermansyah, Deni Novitasari, Ester Kristin, Ira Trisnawati

Makara Journal of Technology

Electrical energy needs in Indonesia are expected to continue to rise. The use of petroleum as a source of energy still dominates, although oil reserves in Indonesia are increasingly being depleted. Therefore, there is a need to develop alternative sources of sustainable energy, such as microbial fuel cell (MFC). In this study, Lactobacillus bulgaricus was used as an electricity producer in a dual-chamber MFC reactor. We investigated the maximum electrical energy by varying the bacterial optical density (OD), the operational time of MFC, the reactor volume, the electrolyte solution, and the configuration of MFC reactor. In this study, the maximum …

Biological Pretreatment Of Oil Palm Frond Fiber Using White-Rot Fungi For Enzymatic Saccharification, Euis Hermiati, Sita Heris Anita, Lucky Risanto, Dyah Styarini, Yanni Sudiyani, Achmad Hanafi, Haznan Abimanyu

Makara Journal of Technology

Oil palm frond is one type of lignocellulosic biomass abundantly and daily available in Indonesia. It contains cellulose which can be converted to glucose, and further processed to produce different kinds of value –added products. The aim of this research is to study the effects of biological pretreatment of oil palm frond (OPF) fiber using Phanerochaete chrysosporium and Trametes versicolor on the enzymatic saccharification of the biomass. The OPF fiber (40-60 mesh sizes) was inoculated with cultures of the two fungi and incubated at 27 °C for 4 weeks. The samples were taken after 1, 2, 3, and 4 weeks …

Agricultural Drought Pattern In West Java Using Thermal Vegetation Index From Modis-Terra Satellite, Dini Daruati, Rahmatulloh Rahmatulloh, Sri Hardiyanti Purwadhi

Makara Journal of Technology

This study examines agricultural drought paddy fields in West Java. The aims of this research are to know the pattern and distribution of paddy field drought in West Java and the correlation between drought and the physical characteristics. The agricultural drought is obtained from TVI (Thermal Vegetation Index) model. TVI is derived from MODIS Terra satellite image, which is the ratio between the LST (Land Surface Temperature) and EVI (Enhanced Vegetation Index). Physical factors studied are rainfall, l slope, geomorphology, soil drainage, and irrigation areas. The most severe drought occurred in September 2006 because of El Nino, covering 806,564 ha, …

An Analysis Of Factors That Influence The Success Of Expeditionary Civil Engineer Hub-And-Spoke Organizations, Joshua A . Hager

Theses and Dissertations

Expeditionary Air Force Civil Engineer support to recent operations in southwest Asia created a unique organizational learning environment, particularly related supporting the general engineering requirements of geographically separated units in a manpower-constrained contingency environment. One of the direct results of this organizational learning was the hub-and-spoke expeditionary engineer unit featuring elements of both RED HORSE and Prime BEEF capabilities operating with theater-wide visibility of infrastructure requirements. This study acquired insights from literature and a purposeful sample of subject matter experts about operational advantages this hub-and-spoke unit offered compared to those offered by strictly legacy organizational models. The research used a …

Case Study Analysis Of Trust And Commitment Between The Civil Engineering Commodity Council And The Civil Engineering Career Field, Jonnathan B. Page

Theses and Dissertations

The Air Force is pursuing strategic sourcing as a strategy for reducing costs of goods and services to help meet budget reductions while still performing its mission. These commodities are sourced through a number of commodity councils, each of which whom interact with their stakeholders throughout the sourcing process for that specific commodity. This research identifies factors that influence the success or failure of the sourcing process from the perspective of the Civil Engineering Commodity Council (CECC) and attempts to organize these factors within a framework built around trust and its effect on commitment and cooperation. These factors were identified …

Characterizing Reliability Of Manual Intersection Turning Movement Counts Using Modern Data Collection Technology, Gary Shoup, Steve M. Remias, Alexander M. Hainen, Gannon Grimmer, Alexander D. Davis

JTRP Other Publications and Reports

Collecting intersection turning movement counts at intersections is an essential data collection task for many types of traffic engineering studies. On a daily basis, consulting firms and agencies collect turning movement counts that are used for preparing traffic impact studies, determining design hours for road improvements, and the retiming of traffic signals. Although there is a substantial body of literature on the stochastic nature of traffic volumes and how they vary by time, day of week, and season, the literature is quite sparse on how accurately turning movement counts can be collected at signalized intersections. The objective of this paper …

Trails As Transportation, Pete Fritz

Purdue Road School

With populations concentrating in urban areas and the push for healthier living, biking and walking to work and other destinations are becoming more acceptable in the United States. With the ever-expanding network of trails in Indiana, the public is realizing the benefit of utilizing trails for daily commuting. This session will show what it takes for a community to embrace non-motorized commuters. We’ll also discuss the health and financial benefits of leaving your vehicle at home. Finally, we’ll get a statewide trails update from the Department of Natural Resources.

The Importance Of Performing Route Surveys In The State Of Indiana, Rodney Kelly, Chester Parsons, Grant Niemeyer

Purdue Road School

This presentation provides an overview of Rule 12 and discuss what is involved in a Location Control Route Survey (LCRS). Details such as where they must be performed, why they are important, their benefits and best practices will be discussed.

Design And Construction Process Management, David Brown

Purdue Road School

New approaches for improving design and construction processes have been used recently. Innovative methods for managing the requirements and quality of these processes will be discussed. A systematic data centric approach will be discussed as well as the processes of separating progress from performance. It discusses the integration of these processes in the planning, risk analysis, design, submission, construction, inspection, quality control and documentation phases.

Rumble Stripes: Opportunity To Improve Safety And Retroreflectivity, Thomas M. Brennan Jr., Alan Plunkett, William Smith

Purdue Road School

Painted rumble stripes can provide safety benefits as well as improved retroreflectivy and paint durability. This presentation covers specifications and construction techniques. A case study will describe the recent application of rumble stripes on US 231 between Crawfordsville and Lafayette, Indiana.

Indot Qc/Qa Earthwork And Intelligent Compaction Us 31/Us 35 At Kokomo, Kurt Sommer

Purdue Road School

This presentation discusses a 2012 case study using QC/QA Earthwork Specifications and Intelligent Compaction Rollers for soils.

INDOT Contract IR-30111 in Greenfield District on US 31/ US 35 at Kokomo used this process in 2012 and continuing into 2013 for the control and acceptance of approximately 1 million cubic yards of earthwork.

Consultant Prequalification For Roundabout Design, Craig M. Parks, John Wright

Purdue Road School

INDOT plans to implement a prequalification requirement for the design of roundabouts because of the unique characteristics associated with their design. This presentation discusses those characteristics and outline the process being proposed for prequalification of engineers performing design, review, and inspection of roundabout projects.

Mutcd Revisions And Sign Upgrades, Jill Palmer, Karen Stippich

Purdue Road School

Jill Palmer, PE has managed over a dozen sign inventories in response to new MUTCD requirements for retroreflectivity. This presentation shares lessons gleaned from that experience and a practical approach to satisfying the MUTCD criteria.

Implementation Of Ada Data Collection To An Active Transition Plan, Stephen G. Metzer Aicp, Pws

Purdue Road School

Collection of right-of-way (ROW) data for curb ramps and sidewalks to determine compliance with the Americans with Disabilities Act (ADA) can be a time consuming and labor intensive effort. To further complicate this, management and interpretation of the data, once collected, is an effort itself. This presentation will provide an example of how data was collected by DLZ Indiana, LLC for the City of Mishawaka. DLZ surveyed nearly 3,000 curb ramps and 250 miles of sidewalks in 2012 using Apple iPads and various software to manage the data. This presentation will document the parameters measured for curb ramps and sidewalks, …

Lincoln Highway: Nation's First Transcontinental Highway, Dennis E. Horvath

Purdue Road School

The centennial of the organizing meeting creating the nation’s first transcontinental highway will be celebrated in July 2013. This is generally considered to be the birth of the federal highway system. The Indiana Lincoln Highway Association will discuss the Lincoln Highway and its upcoming celebration.

Best Practices For Bridge Deck Overlays, Tommy E. Nantung, Robert J. Frosch

Purdue Road School

This presentation discusses recent research regarding alternative bridge deck overlay methods and best practices associated with their use.

Louisville-Southern Indiana Ohio River Bridges Project, Cindy M. Kowalski

Purdue Road School

This session provides an overview of best practices for utility coordination. A case study of the processes used on the Ohio River Bridges will be discussed.

Concrete Durability And The Value Of Electrical Testing, Robert Spragg, Tommy Nantung, Tony Zander, Jason Weiss

Purdue Road School

The electrical properties of concrete are being used to characterize the durability of concretes. Recently, the development of hand-held testing units has generated interest in taking these tests to the field. The resistivity, or conductivity, testing is rapid and can provide instant information on concrete quality. The concept of the testing will be discussed an d a hand-on demonstration of the equipment will be provided.

Toward Long Lasting Bridge Decks, Jason Weiss, Ron Walker, Neal Carboneau, Tony Zander, Tommy Nantung

Purdue Road School

No abstract provided.

Probe Vehicle Data To Assess Workzone Safety, Thomas M. Brennan Jr., Jim Poturalski

Purdue Road School

Historically, work zone maintenance of traffic (MOT) plans have been deployed without a scalable and systematic means to assess congestion and make comparisons between modeled and actual queue lengths observed during construction. This session will discuss how commercial probe data can be used to estimate queue lengths and fuse that information with crash data.