Early prototype model of 3D Tire Printing and Mounting Unit. With the ability of complicated 3-D Printed structures and light weight design, automotive tires will now be 3-D printed with specialized rubber compounds of carbon additives and mesh like forms. Casing of tire will exit end unit (3-D printer) and the first bead of the rim will be overridden with a soft flexible bead of tire. Second bead of tire will mount likewise. Post printing features will allow tires to shrink allowing beading and curing to occur in a short amount of time. Pressure from inner cylinder will allow force either by air or hydraulic fluid pressing the main piston out to release rubber material. Specialized circular designed print ...
In this world where traffic can get into your nerves and stress your life out from work to home, we decided to build a car which can be individually used to travel from your workspace to home with just one person in occupancy and their luggage to reduce traffic and also ease to travel around. Our main objective was to conceptually design and fabricate a 4 wheeled single seater micro car. We initially wanted to build a small car that would be suitable for a city like Bangalore to ease traffic congestion. The car we built has the shortest Wheelbase in the World, that is only 47 inches, which is 3 inches lesser than the world’s smallest car that ...
My suggestion is based on my universal AC-DC electric motor. Using this engine on the electric vehicles, we can reduce weight and improve car aerodynamics. Connecting the engine to the wheels-you can get two traction (wheel and aero). Also using this engine on the electric car can significantly improve its aerodynamics and passenger safety.
New electric AC-DC motor (ZERO MASS AIR ELECTRIC ENGINE)
-Electric winding of the engine has a double role,
1.is carrying element of the propeller ( blades of propeller),
2.is element for generation revolving electro-magnetic field and rotation the propeller.
As wire windings and carrying element is used aluminum electro conductor. This (as well as used technolodies) allow to make electro propeller by ...
Of the trillion dollars that we lose each year in wasted energy, as an architect I miss the following product as roofs are primary heat and cooling loss in our country:
Sandwich panel of R=80 with solar PV as integral part of surface.
Sandwich made of nailable rigid panel on top equal to 5/8" plywood, two layers of foil 3/8" apart under, foil faced poly iso layer of R=60 and with foil underlayer at the bottom for vapor barrier and attached to eq of 1/2" plywood.
The odds and ends pieces that are common in each job would be solid ISO with foil on each and every side for vapor control, sides field applied.
The goal would be to ...
The major challenge in integrating wind energy into the electrical grid is that the resource is intermittent and unpredictable so that energy is always available. With an energy storage system integrated with a wind turbine, surplus energy can be stored and then regenerated when demand is higher.
In the proposed Compressed Air Energy Storage (CAES) system (graphics 1) energy is stored prior to electricity generation, eliminating the need and losses associated with generating electricity twice. This also allows the electrical generator and transmission lines to be downsized for mean power instead of peak power. This can be a significant cost-saving for off-shore installations as their capacities are currently under-utilized by over 50%. Further savings comes from replacing a failure ...
Software development is an important aspect of Computer Science, and as such there are many strategies, techniques and programs which aim to formalise and structure this process. This issue becomes more complex when development is carried out in large global teams which is "rapidly becoming the norm for technology companies" .
"Legit" is a distributed code review tool, built on top of Git Version Control software. Users may push "proposals" to a Legit project, which are semantically similar to a Git pull requests, on which other peers can vote. When approved, Legit attempts to automatically merge the proposal into the main branch of the project. Users can gain a quantifiable "reputation" within the system by having their proposals approved, ...
The success of an Oscillating Water Column (OWC) installation off the west coast of Scotland suggested a compounded system as in the following outline.
Wave pumping of air in an OWC through Wells Turbines has an expensive control set up which can be inexpensively simplified by using a single Vertical Axis Wind Turbine (VAWT) in place of the two turbine Wells system within the ducting.
Enhancing the flow through characteristics of the VAWT by using bifurcated ducting and valves provides from, both air flow directions, a maximum output from the turbine which leads to an increase in power output and system efficiency.
In conjunction with the OWC system a twin contra rotating paired VAWT installation atop of a monolithic ...
A Legitimate Person Authentication System Using Retinal Veins And Ecg As Biometric Parameters-A Bimodal Biometric
In last few decades, many attempts have been made on person identification using biometric and non-biometric features. The main objective of person identification is to ensure that the services are accessed only by a legitimate user. But some biological parameters that are used as uni-model biometric fail to provide the guarantee of the presence and aliveness of the person as, voice can be copied through microphone, finger print can be collected on silicon surface, and iris can be copied on contact lenses.
Unimodal biometric systems have to contend with the variety of problems such as noisy data, intra-class variations restricted degrees of freedom, non-universality, spoof attacks and unacceptable error rates. Hence in this project a new approach on ...
During imprinting of patterns from a stamp onto a substrate surface, conformal contact is necessary to ensure that pattern transfer is successful over the entire stamp. However, such contact is hindered by the initial angular misalignment between the surfaces. In real systems, this misalignment is inevitable and arises due to the two surfaces being non-parallel. Thus, alignment systems that can orient the surfaces parallel to each other while bringing them in contact are necessary during imprinting. The purpose of the present system is to provide this functionality via an easy-to-manufacture, low-cost, and passive system.
Design challenge: Cost versus performance tradeoff
Current alignment systems are of two types: (i) active systems that use feedback control and (ii) manual ...
We have designed an antenna-mounting platform capable of aiming four or more antennas of any type, effectively tracking an unmanned aerial vehicle (UAV) or other moving object carrying multiple radios operating at different frequencies. Our unique design is portable and can accommodate nearly 60 pounds of antennas and radios, limited in number only by the size of the mounting bar installed on the platform.
Our design fulfills an unmet need in the UAV market, integrating multiple capabilities onto one low-cost portable platform. Most low-cost antenna tracking platforms support only one antenna per unit, have limited rotational ability, and are relatively slow. Unlike existing high-performance platforms, which overcome these limitations while costing up to $100,000, our design uses less expensive ...
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