Sentences with phrase «mechanical systems which»

Not exact matches

It was only with the construction of a national railway system in the middle decades of the 19th century, using coal rather than muscle as its source of mechanical energy, that transport could achieve advances to parallel those already long achieved in the branches of industry in which cheap and abundant heat energy was the key to rapid expansion.

You could have said that the effective mass was equal to the mechanical mass plus some sort of electromagnetic mass, which had the property of increasing with the velocity in the ratio of 1 divided by the square root of 1 - v2 / c2, because as the field gets stronger the whole system contracts.

First, to say that this pear has mass might be to say that within the framework of physics and systems of physical measurement and associated units, there is some number m greater than zero, which, to some unspecified tolerance, functions as a parameter in a mechanical analysis of the pear's behavior.

Today however many knowledgeable people are saying that many of the high - tech developments have produced technological systems in which the mechanical - materialist view of reality, human greed and ecological destruction are built in; and that therefore a new paradigm of development with technologies integrated with a more holistic understanding of human personhood and peoplehood and recognizing the organic natural and spiritual dimensions of human community are called for.

He did not merely copy Democritus» physics, as was commonly thought, but introduced the idea of spontaneity into the movement of the atoms, and to the Democritus world of inanimate nature ruled by mechanical laws he added a world of animate nature in which the human will operated.9 Marx thus favours the views of Epicurus for two reasons: firstly, his emphasis on absolute autonomy of the human spirit has freed human beings from all superstitions of transcendent objects; secondly, the emphasis on «free individual self - consciousness» shows one way of going beyond the system of a «total philosophy».

To elaborate on the mechanical concerns: It is possible to have an online voting system which guarantees anonymity of voters and to have a system which is resistant to any manipulation attempts, but there is no way which can provide both at the same time.

In a separate case involving undergraduate admissions at the University of Michigan, the court ruled that the college's mechanical point system, which granted a prespecified number of points on the basis of race, was not legitimate (14).

With many thousands of 3 - D fuzzy patches weighed statistically by a so - called sensor model, which is trained offline using calibrated example routes, the system is remarkably tolerant of poor sight, changes in lighting, movement of objects, mechanical inaccuracies and other perturbations.

In particular, mechanical superimposition of the 2D crystals generates 2D periodic potentials which impart to system unconventional physical and chemical properties.

A mechanical device using the vacuum system, which incorporates the reduced - oxygen method, has been successfully tested on zebra mussels in the laboratory; in November 1996, it too was granted a U.S. Patent (# 5,578,116).»

The paper is based on a series of experiments the researchers conducted, using the Amazon Mechanical Turk survey system, in which subjects were presented with a series of sentences — some evidently sensible, and others less so — and asked to judge what those sentences meant.

This condensate is an extreme aggregate state of a system of indistinguishable particles, most of which are in the same quantum mechanical state.

«All generator stations, transformer stations, power lines, and switch yards have protection systems, which until then were based on mechanical relays,» he explains.

To prove that this simulation works, Zheng and his collaborators in China used off - the - shelf hardware to build a calibrated system in which a mechanical apparatus precisely controls the object immersion, and a 3D - system measures the object orientation and its dipping location.

Meanwhile, new technologies allow engineers to dream beyond designing glorified mechanical arms: So - called «swarm bots» work together like army ants to move relatively heavy objects; a fire hose — cum - snake robot can slither across the floor before putting out a blaze; and Nissan is developing an avoidance system to prevent car crashes based on bees — which use their compound eyes to see nearly all the way around themselves while buzzing about, changing direction when they sense something in their path.

The researchers view their system as an alternative to the microfluidic devices now commonly used in biological research, in which biological solutions are pumped through microscopic channels connected by mechanical valves.

Of particular interest are changes in mechanical and thermal transport properties with which researchers try to determine the lifetime for safe use of the material in engineering systems within radiation environments.

Kamiel and Wei Yang and Yaolin Lin, associate professors at the Wuhan University of Technology in China developed a holistic and integrated model which considered the building enclosure, the mechanical systems, the external environment, the proportion of window opening and the shading factor based on data collected from 270 households including single and multiple units, as well as different heating methods.

The experimental design draws from his recent research in the field of optomechanics, which Savona describes as «the art of conceiving systems in which light interacts, in highly controlled and highly tailored way, with a mechanical vibration of some sort.»

On May 25, the team, which includes co-principal investigators Louis Whitcomb, a professor of mechanical engineering at The Johns Hopkins University, and Dana Yoerger of WHOI who were responsible for development of the vehicle's navigation and control system, conducted a planned sequence of successively deeper dives — testing Nereus, making scientific observations and collecting deep - sea samples at each depth they reached.

Swollen glands, with which most of us are familiar, are symptomatic of blocked lymph nodes, which indicate a breakdown in the mechanical functioning of the lymphatic system.

Your nervous system can respond to mechanical stimulation, so when you're doing, say, the warrior pose and breathing deep, you're rousing your vagus nerve which sends signals to your heart to optimize the spacing between your heart beat or the heart rate variability which is cool.

«We now have all sorts of mod cons, from an automatic mechanical ventilation system to a school bell beeper system, and the children were able to see the construction work from the playground of the old school, which was very exciting and involving for them.

If your property has classrooms and corridors with internal fire resistance rated walls, and a mechanical ventilation system, you will also need to ensure that you are compliant with BS: 9999 2017, which governs the maintenance of fire dampers.

The researchers have estimated that at least # 150m annually is being spent on unnecessary services and maintenance which could have been avoided if schools very better designed, particularly with less complex mechanical and electrical systems which are difficult to operate and have a short lifespan.

Once they're comfortable with the way that one thinking routine has worked in their classroom, they can branch out and focus on different kinds of inquiry, like Here Now / There Then, which could be used in a civics class to help students understand how past perspectives change over time; or Parts, Purpose, Complexities, which encourages observation and understanding of art objects or mechanical systems.

The electronic differential is now helped by an integrated F1 - Trac system, which is said to «improve both mechanical grip and the control of the car on the limit.»

Optional mechanical upgrades include active stabilizer bars and active steering, the latter of which adds rear - wheel steering to the earlier generation's variable - ratio front steering system.

Unlike the current SH - AWD system, which would send power to the front wheels by way of a driveshaft and a mechanical differential, the NSX's front wheels will instead be powered by a pair of electric motors.

This breakthrough was achieved with a lot of help from Bosch, which invented a new system that combines an active brake fluid volume reservoir with an electro - mechanical brake assistant.

If the car was not manufactured for the country it is being inspected for, it would likely fail a mechanical inspection as each country has it's own little quirks about emission equipment (such as catalytic converters and EGR systems), and some even restrict which engine you can have to those that had been previously certified for that country.

The nearest Porsche GB's Press fleet gets to slummin» it in the lower reaches of the 911 range is this Guard's Red 3.4 manual additionally equipped with 20 - inch alloys, ceramic brakes, PASM adaptive damping with 20 mm lower sports chassis, Porsche Torque Vectoring teamed with a mechanical limited slip diff, the Sport Chrono Package (which includes the dynamic engine mounts), a sports exhaust system and sports seats.

The technician will lift the car to check underneath for any damage or leaks; closely check the suspension, steering and brake systems for wear and damage; visually inspect all the mechanical, electrical, and hydraulic systems; and scan the on - board control modules located all over the vehicle, of which there are sometimes dozens.

These were homologated by Jaguar for the Lightweight E-type in addition to a Lucas mechanical fuel injection system — which is being offered to customers as a cost - option (and which is fitted to Car Zero).

• An exhaustive 182 - point mechanical and appearance inspection, performed by the dealer technician, in which all major vehicle systems are scrutinized.

Differentiating PowerShift even further in terms of its customer appeal is its shift quality, launch feel and overall drive dynamic, which are all facilitated by an expert blend of Ford - exclusive electro - mechanical systems, software features, calibrations and controls.

As indicated above, all new Polo cars — including the Polo TSI BlueMotion, Polo TDI BlueMotion, Polo BlueGT and CrossPolo models — offer a range of driving, convenience and safety technologies which is unique in this class: A new electro - mechanical servo steering system improves steering properties.

Of even more cheer is the optional new, purely mechanical variable - ratio steering system, which of course offers a more precise response to input and sharper handling, and on the 335i and 328i, a Servotronic function for speed - sensitive power assistance is also standard.

That would mean the new Lexus ES — which will be underpinned by the new Toyota TNGA Platform — extending its offering from just a front - wheel drive setup to one which includes a four - wheel drive option, probably a 4WD option using an electrified back axle rather than a mechanical 4WD system, at a price point which sits somewhere between the (cheaper) ES and the current GS.

This is different from the CR - V's mechanical 4WD system, which must encounter front - wheel slippage before torque is diverted to the rear wheels.

The Proactive system features adjustable roll control which replaces the mechanical anti-roll bars that have been a standard feature of road cars since time immemorial.

The operating principle of the system, applied to intake valves, is the following: a piston, moved by a mechanical intake cam, is connected to the intake valve through a hydraulic chamber, which is controlled by a normally open on / off solenoid valve.

The long hood includes a large central aperture and the rear of the SLS AMG GT3 is controlled by a changeable wing attached to the trunk lid which has a unique diffuser underneath to operate the different heating and mechanical systems that the car uses.

The important mechanical difference was the replacement of the Bosch fuel injection system by four twin - choke down draught Weber carburettors, which produced a notably smother performance at low engine speeds with greater flexibility.

Unlike the previous ATTESA systems which relied heavily on mechanical feedback, the system in the GT - R uses electronic sensors and hydraulically actuated clutches.

A very handy specialty tool that I've recently discovered is Innovative Products» Disc Brake System Analyzer, P / N 7884, which features a pair of precision mechanical pressure gauges.

The feature list includes Adaptive damping control as standard on all models, a new electro - mechanical steering system with hands - off automatic parking system, a stereo camera that prevents collision, a new Distronic Plus feature with Steering Assist, which keeps the car in a chosen lane and tracks traffic in tailbacks, Brake Assist Plus with Junction Assist.

The recession accelerated the auto industry's transformational changes, which are required for growth as well as the reinvention of vehicles — from mechanical to electrical systems, from stand - alone to connected, and from mass markets to personalization and customization.

Improvements elsewhere include an electro - mechanical Direct Steer steering system across the model range, as well as a fully revised suspension setup, which includes a newly - designed four - link front axle, primarily made of aluminium.

An Electronically Controlled Continuously Variable Transmission (ECVT) also supplants an 8 - speed auto in the conventional models which also get a mechanical AWD system.