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Electrification System Modeling with Machine/Deep Learning for Virtual Drive Quality Prediction

General Motors Technical Center India-Brijesh Borkar, John Bosco Maria Francis, Pankaj Arora
  • Technical Paper
  • 2019-28-2418
To be published on 2019-11-21 by SAE International in United States
A virtual 'model' is generally a mathematical surrogate of a physical system and when well correlated, serves as a basis for understanding the physical system in part or in entirety. Drive Quality defines a driver's 'experience' of a blend of controlled responses to an applied input. The 'experience' encompasses physical, biological and bio-chemical perception of vehicular motion by the human body. In the automotive domain, many physical modeling tools are used to model the sub-components and its integration at the system level. Physical Modeling requires high domain expertise and is not only time consuming but is also very 'compute-resource' intensive. In the path to achieving 'vDQP (Virtual Drive Quality Prediction)' goal, one of the requirements is to establish 'well-correlated' virtual environments of high fidelity with respect to standard test maneuvers. This helps in advancing many developmental activities from a Controls and Calibration aspect. Recently, machine/deep learning have proven to be very effective in pattern recognition, classification tasks and human-level control to model highly nonlinear real world systems. This paper investigates the effectiveness of deep learning…

Dynamic Microstructures Move by Light and Temperature

  • Magazine Article
  • TBMG-35270
Published 2019-10-01 by Tech Briefs Media Group in United States

3D printing via direct laser writing involves a computer-controlled focused laser beam that acts as a pen and creates the desired structure in the printer ink — a photoresist. In this way, any three-dimensional form down to the size of a few micrometers can be created.

Rose-Inspired Device Collects and Purifies Water

  • Magazine Article
  • TBMG-35276
Published 2019-10-01 by Tech Briefs Media Group in United States

A new device, inspired by a rose, inexpensively collects and purifies water. The device is a new approach to solar steaming for water production — a technique that uses energy from sunlight to separate salt and other impurities from water through evaporation.

Hydrogel Adhesive Helps in Wound Healing

  • Magazine Article
  • TBMG-35347
Published 2019-10-01 by Tech Briefs Media Group in United States

Cuts, scrapes, blisters, burns, splinters, and punctures — there are a number of ways our skin can be broken. Most treatments for skin wounds involve simply placing a barrier over them (usually an adhesive gauze bandage) to keep it moist, limit pain, and reduce exposure to infectious microbes, but do not actively assist in the healing process. A new, scalable approach to speeding up wound healing has been developed based on heat-responsive hydrogels that are mechanically active, stretchy, tough, highly adhesive, and antimicrobial: active adhesive dressings (AADs). Created by researchers at the Wyss Institute for Biologically Inspired Engineering at Harvard University, Harvard's John A. Paulson School for Engineering and Applied Sciences (SEAS), and McGill University, AADs can close wounds significantly faster than other methods and prevent bacterial growth without the need for any additional apparatus or stimuli. The research is reported in Science Advances.

Clean Design: Reducing Patient Infections Starts with Design for Cleanability

  • Magazine Article
  • TBMG-35328
Published 2019-10-01 by Tech Briefs Media Group in United States

Although the Food and Drug Administration (FDA) has reported progress on reducing overall infection rates with enhanced safety measures and better disinfection methods, the risks associated with reusable medical devices are an ongoing challenge, with drug-resistant microbes and other organisms continuing to survive the cleaning process at an unacceptable rate.1

Probe Detects Kidney Failure Early

  • Magazine Article
  • TBMG-35086
Published 2019-09-01 by Tech Briefs Media Group in United States

Researchers have developed a type of imaging probe that allows for earlier detection of acute kidney failure, a rapidly developing condition that can be fatal. The new renal probes, which have been tested in mice, are injected into the bloodstream. They light up when they detect molecular changes caused by the onset of acute kidney failure.

Portable Electrochemical Sensing System

  • Magazine Article
  • TBMG-35141
Published 2019-09-01 by Tech Briefs Media Group in United States

An electrochemical sensing system that significantly improves the ability to rapidly and accurately detect heavy metals in biological and environmental samples was developed. Using a simple blood sample from a finger prick, the system identifies and eliminates exposure to toxic metals such as lead. These dangerous elements continue to pose a significant health concern, especially to children.

Ruggedized Bioprinter

  • Magazine Article
  • TBMG-35103
Published 2019-09-01 by Tech Briefs Media Group in United States

nScrypt Inc. Orlando, FL 407-275-4755

Method Adjusts Structure of Dyes to Create Colorful Fluorescent Molecules

  • Magazine Article
  • TBMG-34917
Published 2019-08-01 by Tech Briefs Media Group in United States

Until about 20 years ago, scientists relied on chemical fluorescent dyes to make biological molecules visible. To look inside cells, stain organelles, and perform other imaging experiments, chemistry was the method used. Chemistry was subsequently replaced by GFP, a glowing green jellyfish protein.

Technique Identifies Electricity-Producing Bacteria

  • Magazine Article
  • TBMG-34891
Published 2019-08-01 by Tech Briefs Media Group in United States

Certain species of bacteria that exist in oxygen-deprived environments must find a way to breathe that doesn't involve oxygen. These microbes — which can be found deep within mines, at the bottom of lakes, and even in the human gut — have evolved a unique form of breathing that involves excreting and pumping out electrons; they actually produce electricity.