Wearable Brain-Machine Developed by Interface – Could Control a Wheelchair, Vehicle, or Computer

2020-08-03T00:57:58-07:00

Wearable Brain Machine Combining new classes of nanomembrane electrodes with flexible electronics and a deep learning algorithm could help disabled people wirelessly control an electric wheelchair. Interacting with a computer, or operate a small robotic vehicle without donning a bulky hair-electrode cap or contending with wires. This work reports fundamental strategies to design an ergonomic, portable EEG system for a broad range of assistive devices, smart home systems, and neuro-gaming interfaces. Not to mention, primary innovation is in the development of a fully integrated package of high-resolution EEG monitoring systems and circuits within a miniaturized skin-conformal system.” The Brain-Machine Interface [...]

Wearable Brain-Machine Developed by Interface – Could Control a Wheelchair, Vehicle, or Computer2020-08-03T00:57:58-07:00

Engineers Test “CHP” – Combined Heat and Power

2019-09-13T14:48:52-07:00

Figure 1. Self Sufficient Home with Combined Heat and Power Combined Heat and Power (CHP) Engineers combined heat and power (CHP) systems, also known as cogeneration, generate electricity and useful thermal energy in a single, integrated system. CHP is not a technology, but an approach to applying technologies. Heat that is normally wasted in conventional power generation is recovered as useful energy, which avoids the losses that would otherwise be incurred from separate generation of heat and power. While the conventional method of producing usable heat and power separately has a typical combined efficiency of 45 percent, CHP [...]

Engineers Test “CHP” – Combined Heat and Power2019-09-13T14:48:52-07:00

Material Engineers : Pros and Cons of Solar Powered Cars

2019-09-13T14:49:19-07:00

Figure 1.  Solar Powered Cars in the Future Although a solar power car may not be commercially viable right now, there are ways that solar power can be added to existing designs to make vehicles more efficient. Material Scientist examine the pros and cons of this technology, it can continue to move forward in development to help save on fossil fuels, and the electric grid and pollutions. Solar-powered vehicles (Solar Cells ) have zero emission level, as they don’t utilize non-renewable resources and burn fuel. The electric motors generate electricity (See Figure 1.) that doesn't emit any greenhouse gases or any other [...]

Material Engineers : Pros and Cons of Solar Powered Cars2019-09-13T14:49:19-07:00

Electric Vehicle Batteries: Recycled

2019-09-13T14:50:04-07:00

  Material Scientist Ponder What to Do With Used EV Batteries  As electric vehicles become mainstream, mechanical engineers and chemical engineers are trying to address the big environmental question: what do we do with the used lithium-ion batteries? The batteries used in electric cars are physically large, last 8 to 10 years, and will account for 90 per cent of the lithium-ion battery market by 2025.  This will increase lithium demand fourfold, and more than double the demand for cobalt — two of their essential elements.  The price of cobalt has already risen by more than 80 per cent [...]

Electric Vehicle Batteries: Recycled2019-09-13T14:50:04-07:00

Engineering Advances: Degradation and Saving Electric Vehicle Batteries

2019-09-13T14:50:17-07:00

Degradation of EV Lithium Batteries  Battery degradation in Electric Vehicles (See Figure 1. to Right) leads to capacity fade, thereby shortening the vehicle’s possible range.  Patterns are beginning to emerge and provide valuable insight into EV battery capacity and lifetime.  Most drivers are retaining over 90% of original capacity Range Anxiety Some cars have a range of only 106 miles, equivalent to just over three times the average daily drive in the US. New Electric Vehicles are expected to have a range of up to 235 miles, a 220% increase, therefore, range is constantly improving to address consumer concerns. Charging an [...]

Engineering Advances: Degradation and Saving Electric Vehicle Batteries2019-09-13T14:50:17-07:00

Electric Vehicle Battery: Electronic Materials, Cost, and Lifespan

2020-06-09T19:11:57-07:00

Electric Vehicle Battery Materials Fire car Figure 1 - Electric Vehicle on Fire What Can Silicon Valley Do About EV Battery Sourcing Issues? Most electric vehicle batteries are lithium based and rely on a mix of cobalt, manganese, nickel, and graphite and other primary components, can be very dangerous, battery fires could occur (See Figure 1).  Some of these materials are harder to find than others, though none should be classified as "rare earth metals" ( http://glewengineering.com/the-impact-of-chinese-export-restrictions-on-rare-earth-elements/) . Over 60% of the  global supply for cobalt comes from the Democratic Republic of Congo (DRC), which has a poor human rights track record; [...]

Electric Vehicle Battery: Electronic Materials, Cost, and Lifespan2020-06-09T19:11:57-07:00

NAND Flash – 11 Myths Still Floating Around

2019-09-13T14:50:49-07:00

Think You Know NAND Flash?  NAND flash has become the de facto memory standard in the years since Toshiba first introduced it almost three decades ago. However, many misconceptions remain to this day about its use. A wide variety of NAND flash-memory products are available, all with significantly different features and capabilities.    All NAND flash has the same interface. NAND flash, introduced by Toshiba more than 20 years ago, is available in both the asynchronous and toggle-mode interfaces. The original asynchronous interface is found mostly in lower-density devices (<32 Gb), while high-density NAND flash (≥64 Gb) [...]

NAND Flash – 11 Myths Still Floating Around2019-09-13T14:50:49-07:00

Semiconductor Worldwide: Samsung Takes Over

2019-09-13T14:51:10-07:00

Samsung topples Intel as top dog semiconductor market share  Gartner beancounters say price rises driven by memory shortages propelled Samsung into the lead based on semiconductor vendor revenue, vaulting past Intel and its CPUs. The largest memory supplier, Samsung Electronics, gained the most semiconductor market share and took the No. 1 position from Intel – the first time Intel has been toppled since 1992. Memory accounted for more than two-thirds of all semiconductor revenue growth in 2017, and became the largest semiconductor category.  DRAM prices rose 44 per cent from 2016 to 2017, and NAND flash prices went up [...]

Semiconductor Worldwide: Samsung Takes Over2019-09-13T14:51:10-07:00

Mechanical Engineering Consulting Firm Evaluates 3D Software Using Motorcycle Frame – Part 1

2019-09-12T14:32:55-07:00

Fig. 1 A street bike shown in CAD mesh. Mechanical Engineering Consulting Group Evaluates 3D CAD Programs Mechanical Engineering Consulting Testing of Creo™, Solidworks™, and Inventor™ Mechanical Engineering Consulting service companies largely use one of three 3D CAD programs: Creo™, Solidworks™, and Inventor™.  At Glew Engineering, we have licensed seats of all three CAD mechanical design packages.  We reviewed the CAD workflow and feature sets of each 3D CAD program using motorcycle frame design as an example.  Also, we showed that some of the specialized commands of each 3D CAD software programs are better suited for specific tasks. Our engineers [...]

Mechanical Engineering Consulting Firm Evaluates 3D Software Using Motorcycle Frame – Part 12019-09-12T14:32:55-07:00

Energy Efficient Solutions for Everyday Energy Efficiency Problems

2019-09-12T14:33:10-07:00

As energy efficient environmentally conscious engineers, we here at Glew Engineering do what we can to save energy and resources both around home and around the office.  This might mean choosing products that are more environmentally friendly or energy efficient.  It might mean using our surroundings to our advantage, like pulling cold air through a home or office at night so the building needs less air conditioning the next day.  The most satisfying thing, though, is to employ our knowledge of mechanical engineering, materials science and thermal management to design custom hand-tooled solutions.  In the next few blog posts, I'll [...]

Energy Efficient Solutions for Everyday Energy Efficiency Problems2019-09-12T14:33:10-07:00

12 Years a Martian: Engineering Challenges on the Red Planet

2019-09-12T14:35:47-07:00

Figure 1: Mars Exploration Rover By NASA/JPL/Cornell University, Maas Digital LLC [Public domain], via Wikimedia Commons Depending on which Facebook pages or Twitter feeds you follow, some of you may have caught wind that Opportunity (Mars Exploration Rover B, Figure 1) recently passed its twelfth anniversary of its landing on the red planet.  Opportunity’s ongoing trek across Mars represents a fantastic accomplishment in engineering.  At the time I’m writing this, the rover has been in continual operation for over 4,300 Earth days (that’s about 4,185 Sols, or Martian days).  Considering its original planned mission time [...]

12 Years a Martian: Engineering Challenges on the Red Planet2019-09-12T14:35:47-07:00
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