Jan 18, 2018 -PASADENA, Calif.--(BUSINESS WIRE)-- Tetra Tech, Inc. (NASDAQ: TTEK) has announced that it has signed a definitive agreement to acquire Norman Disney & Young (NDY), a leader in sustainable infrastructure engineering design. Established in 1959, NDY maintains offices throughout Australia, the Asia-Pacific region, the United Kingdom, and Canada. NDY incorporates innovative technologies and solutions into designs, helping to create environments that use less energy, recycle water, and provide safe and sustainable infrastructure.
“The addition of NDY to our sustainable infrastructure design practice will enable Tetra Tech to offer technically differentiated solutions to our commercial and government clients on a global scale,” said Dan Batrack, Tetra Tech’s Chairman and CEO. “NDY will join our high-end design team in the United States to provide worldwide coverage and complementary client relationships.”
“We are very excited to join Tetra Tech,” said Stuart Fowler, NDY’s CEO. “Tetra Tech expands our ability to provide our high-end services, provides opportunity for technical collaboration, and adds new clients. We look forward to further developing the science of sustainable design and providing industry-leading technical solutions.”
NDY is joining the Commercial and International Business Group’s Asia Pacific operations. The acquisition will be subject to the satisfaction of customary closing conditions.
About Norman Disney & Young
NDY is a global engineering design firm of more than 700 professionals operating across 13 offices in Australia, the United Kingdom, New Zealand, Hong Kong, and Canada. NDY provides sustainable engineering design services for the built environment, including commercial offices, education, health, industrial, mission critical, residential & hotels, retail and transport facilities. For more information about NDY, please visit ndy.com.
About Tetra Tech
Tetra Tech is a leading, global provider of consulting and engineering services. We are differentiated by Leading with Science® to provide innovative technical solutions to our clients. We support global commercial and government clients focused on water, environment, infrastructure, resource management, energy, and international development. With more than 16,000 associates worldwide, Tetra Tech provides clear solutions to complex problems. For more information about Tetra Tech, please visit tetratech.com, follow us on Twitter (@TetraTech), or like us on Facebook.
Any statements made in this release that are not based on historical fact are forward-looking statements. Any forward-looking statements made in this release represent management’s best judgment as to what may occur in the future. However, Tetra Tech’s actual outcome and results are not guaranteed and are subject to certain risks, uncertainties and assumptions (“Future Factors”), and may differ materially from what is expressed. For a description of Future Factors that could cause actual results to differ materially from such forward-looking statements, see the discussion under the section “Risk Factors” included in the Company’s Form 10-K and 10-Q filings with the Securities and Exchange Commission.
The London Transport Museumhas twonew displays part of a Department for Transport led initiative to get more young people to study engineering writes Aimée McLaughlin for Design Week. Well worth a visit if you happen to be taking the "undecided, do I want to get into engineering or not" off-spring to the UK on the last family holiday before they flee the nest.
Jan 10, 2018 - Miller Electric, a manufacturer of arc welding equipment, is expanding its ClearLight Lens Technology to all digital welding helmets. ClearLight enhances clarity for welding operators so they can produce better welds with less rework.
Jan 9, 2018 - Kalmar has signed an agreement to acquire the port services business of Inver Engineering in Australia. The investment in Inver Port Services supports Kalmar’s goal of growing in services while strengthening and broadening its existing service capabilities throughout Australia, New Zealand and the Pacific. The acquisition was closed on 29 December 2017.
Dec 22, 2017 - While the inaugural Kaeser Compressors Network Evening in Wellingtons’ Hutt Valley would be expected to generate local interest, it was the comments of director Paul Jessup that delivered as much discussion as the Metco’s new Seaview premises.
Metco is owned by Paul Jessup and Brent Greer, two men with a firm grip on running an engineering component supply operation in the digital machine age. Building on its established presence in the Japanese market supplying friction window stays, the company has leapt from strength to strength, necessitating a recent move to the new expanded Seaview premises. Metco joins a growing list of New Zealand companies that have turned away from the commodity driven markets of yesteryear, ignored the third world competition bleating and got on with building niche operations using our unique Kiwi strength of rapid turn around and a solution based approach. The results speak for themselves with a portfolio of 600 customers including the Defence Force, Parliament and Rocket Labs.
The amount of digitally controlled equipment is stunning and listening to Jessup’s description of the expandable potential gave the attendees a heartening glimpse of what is possible. Metco’s roots and mainstream activities come out of traditional brake pressing cutting and folding industry, with the adaption of the latest digital technology. “This technology is leading edge.” quoted Paul Jessp “The machines are a good example of how New Zealand Industry could be positioned, developing and applying the next era of machine tools. The potential of automated lazer welding is a prime example. We have the ability to think outside the square and the innovation and efficiency to rapidly deliver it. However, there is absolutely no political drive or backing to support our potential. The machine tool operations you see in front of you would be considered a trade in any other country, but here it is not recognised and there is absolutely no training capability offered by the technical education sector to satisfy it. The bums on seats mentality of the sector is costing this country dearly.” Metco have given up looking for by outside training and now recruits, trains and develops its entire specialised staff itself.
Digital technology provides infinite scalability meaning the team can quote in numbers from 1 to 1 million, but the key to success in Jessups view is Metcos’ ability to control the entire process from start to finish. Jessup and Greers innovative approach is not restricted to new age machine tools and customers needs however. Their ethos extends to their own older traditional brake presses where a looming problem with traditional noise issues was resolved by addressing the noise generated by the die shear action. The attendees were impressed by the quietness of the operation, a view shared by Worksafe.
The Kaeser Compressors Network Evening series is as much about highlighting the capabilities of local companies as it is about spectacular achievements or interesting maintenance challenges and the Metco evening proved once again that innovation is a thriving capabaility in New Zealand.
The MESNZ Kaeser Compressors Network Evenings are hosted to showcase local operations and provide networking opportunities for engineers across all regions of New Zealand. The evenings offer the opportunity to take a look at the host operation and discuss common issues and solutions in a relaxed after work environment. Open to interested members of the public, the nights are well patronised.
The Maintenance Engineering Society is active across New Zealand, providing professional development opportunities for maintenance engineers and manufacturing operations to network and share innovations and experiences; both at a national level at their annual national conference or at these regional events. The 2018 National Maintenance Engineering Conference will be held in Rotorua on November13-15.
Dec 20, 2017 - For anyone who has marveled at the richly colored layers in a cafe latte, you're not alone. Princeton researchers, likewise intrigued, have now revealed how this tiered structure develops when espresso is poured into hot milk.
"The structure formation in a latte is surprising because it evolves from the chaotic, initial pouring and mixing of fluids into a very organized, distinct arrangement of layers," said Nan Xue, lead author of a paper describing the findings in Nature Communications, and a graduate student in the lab of Howard Stone, professor of mechanical and aerospace engineering at Princeton.
Honing techniques for yielding sought-after layers by flowing liquids into each other could reduce costs and complexity in a range of applications.
"From a manufacturing perspective, a single pouring process is much simpler than the traditional sequential stacking of layers in a stratified product," said Stone. "In one application of this study, we are exploring the physics behind making a whole layered structure with one step, rather than one-by-one stacking of the layers."
The inspiration for the research project came from an unsolicited, emailed picture of a layered coffee drink sent to Stone. With Xue looking for a project to take on as he started his graduate work, he initially investigated the concept by preparing lattes in the lab, using store-bought coffee and milk.
After several tries, it became clear to Xue that staying within only certain parameters, such as temperatures and pour rates, allowed for a characteristic café latte. These efforts hinted at the underlying, quantifiable physics that had to be involved in its liquid structure formation.
To control their model of latte layering with more precision, Xue and colleagues opted for a stand-in recipe that would make a barista shudder: dyed water substituting for the hot coffee, and salty, denser water for the warm milk.
A panel of light-emitting diodes and a camera then illuminated and captured the movement of fluids within the concoction. The researchers seeded the mixture with tracer particles, which scattered light from a green laser beam, to further track the faux-latte's internal dynamics, a technique called particle image velocimetry. Finally, numerical simulations were run to compare the collected data with various models of the evolving system of intermixing liquids.
The overall analysis showed that the primary mechanism behind the layering is a phenomenon known as double-diffusive convection. It occurs when stacked-up fluids of different densities, impelled by gravity to mix their contents, exchange heat through the movement of their constituent materials. Within a given mixture, denser, cooler liquids sink, while lighter, hotter liquids rise. This sinking and rising stops, however, when the local density in a region within a latte approaches an equilibrium. As a result, the fluid there has to flow horizontally, rather than vertically, creating distinct bands, or layers.
Through their experiments, the researchers examined how the velocity of the fluid injection of the warm milk matters as well. If poured too slowly, the denser fluid will mix too evenly as it flows into the less-dense fluid. A faster pour rate causes the former to punch through the latter and trigger the rapid movements that culminate in the desired layering when density equilibria are established.
Additional work needs to be done to characterize the layering effect demonstrated in lattes to extend control of it to other leveled liquids and semi-solids. But the preliminary findings from Xue and his colleagues already have shown how the activity within a common beverage could lead to uncommon insights. The same can be said for this engineering project focusing on cheese.
"This result shows the beauty of fluid mechanics and is very significant," said Detlef Lohse, a professor of fluid mechanics at the University of Twente in the Netherlands who was not involved with the study. "I think it will have bearing on various industrial flows and mixing procedures in so-called process technology, in which mixing of fluids with different densities by the injection of one into the other is omnipresent."
Lohse further pointed out how the Princeton research could help in better explaining heat- and salinity-dependent flows of water in Earth's vast oceans, a phenomenon that has key implications in climatology and ecology. "The most awesome finding may be that there is perfect analogy between the layering in a cafe latte," said Lohse, "and the known and extremely relevant layering of water with different temperatures and salt concentrations in the ocean."
For more coffee-related engineering, check out Adding Up the Perfect Cup.
Dec 19, 2017 - The challenges of high pressure have kept metal 3D printing from gaining widespread application in hydraulics technology, but we may begin seeing 3D-printed components in specialized applications.
One advantage of hydraulics technology is its high power density. Hydraulic pumps are typically a small fraction the size of the electric motors that drive them, and the size and weight differential between pumps and gas or diesel engines is even more pronounced. An even bigger advantage is with actuators. Hydraulic cylinders only a few inches in diameter can generate forces to lift thousands of pounds, crush rock and concrete, or form high-strength steel into rugged components.
Of course, another advantage of hydraulics is its ability to control direction, speed, torque, and force using anything from simple manually operated valves to sophisticated electronic controls to command valves automatically. And even though electronic control of hydraulic valves continues to advance, processes improvements for manufacturing the valves themselves have not been as dramatic. But that has started to change.
Where We Are and May Be Going
Cartridge valve technology is widely used to integrate several control functions into a single manifold. Centrally locating multiple valves within a manifold can dramatically reduce
Dec 15, 2017 - When six Wintec Māori and Pasifika engineering students volunteered for work experience at Longveld recently, they got to work on a very special project. Together they have made the framework for Hamilton’s Matariki Interactive Waka sculpture.
The work undertaken by the students on the waka ‘skeleton’ complemented their trade training as it required them to weld and assist with cutting steel while experiencing a real-world workplace.
Longveld directors Pam and Les Roa launched their business with little more than a toolbox, a welder and some great trade skills in the early 90s. They celebrate innovation and believe very strongly in culture and wellbeing. Their adoption of mātauranga Māori principles added a welcoming, cultural dimension to the students’ experience.
“We’re no strangers to interesting projects, in fact at Longveld we relish the challenge. To work with students who are embarking on a career in engineering, and at the same time help to create something that is so culturally significant for our community, is really inspiring for our team,” says Pam.
The students have been mentored by Longveld engineer Jemoal Lassey who says he has a new respect for teaching and learning.
“Upskilling these students, who I hope will become part of a new generation of engineers, was a reminder of how important it is to get the basics right, learn by doing and to ask questions along the way and challenge better ways of doing things,” says Jemoal.
Wintec tutor and PhD candidate Joe Citizen is behind the multidisciplinary Matariki Interactive Waka project which to date has involved Wintec students studying trades, engineering, early childhood education and media arts working with industry partners and Wintec’s Māori Achievement team.
“I can’t say enough how awesome it is that Longveld are involved and through this project they are mentoring our students. It was just wonderful to walk in there and see how they’re getting top-level mentorship in making a prototype that informs the cladding process,” says Joe.
“It’s real hands-on stuff. What’s particularly cool is the way I’m learning from the students, as they could tell me what the hard parts were and what they think needs to be done next.
“The next part will be working on the illuminated access hatches, which need to be integrated into the cladding design.”
Looking ahead, there are exciting plans for the Matariki Interactive Waka project as the sculpture nears completion in time for a June 2018 installation at Hamilton’s Ferrybank. Wintec media arts, business and IT students will work together to create an app with the sensor data from the waka project. Sustainable energy options have been researched by Wintec electrical engineering students and next year will see their implementation, using solar and wind solutions.
Background The multidisciplinary Matariki Interactive Waka project was developed by Wintec tutor and PhD candidate Joe Citizen. Joe envisaged this project as a public art installation that encompassed many of the disciplines and values related to his research.
The seven metre tall interactive sculpture is being built with a stainless-steel skeleton and clad in 3mm corten plate, and will utilise an interactive design that engages with the seven stars of Matariki through LED lighting and ambient soundtracks. The interactive sculpture will be activated by movement and its environmental sensor network will operate at dawn and dusk.
The sculpture will be situated at Hamilton’s Ferrybank, having gained unanimous consent from the Hamilton City Council at both its concept and siting stages. It is a collaborative, consultative, multidisciplinary partnership with Wintec’s researchers, Media Arts, IT and Māori Achievement teams, guided by Wintec kaumātua Tame Pokaia.
Current industry partnerships include Longveld, ACLX, and Taranaki-based MechEng. More than $100,000 of funding has been secured so far, with donations, grants, and in-kind support received from Perry Group, Trust Waikato, WEL Trust, Longveld and Wintec.
Follow the Matariki Interactive Waka Project on Facebook.
Homepage image: Artist's impression, the Matariki Interactive Waka sculpture at Ferrybank, Julian Smith.
Dec 13, 2017 - When pulling up to a traffic light, most drivers get pretty close to the car in front of them, leaving just several feet of space between their bumper and the next. The practice of packing tightly at traffic lights is widely accepted. Traditional thinking says the closer a car is to a traffic light, the more likely that car will be to pass through the intersection before the light turns red again.
Thanks to new research by Virginia Tech College of Engineering professors and students, drivers now have a good reason to dismiss this faulty line of roadway intuition. The results could be useful in Ethiopia, where traffic management is a serious engineering project.
The study, published this month in the New Journal of Physics, used video cameras attached to drone helicopters to capture footage of cars accelerating through a traffic light on the Virginia Tech Transportation Institute's Smart Road. By systematically controlling the packing density of the cars, the researchers discovered that any decrease in distance to the light was completely offset by the time it took for cars to regain a comfortable spacing before drivers could accelerate.
Drivers who pack tightly at intersections do not increase their chances of making it through the light, and tailgating at traffic lights can also lead to more rear-end collisions.
"We varied the bumper-to-bumper spacing between cars by a factor of 20 and saw virtually no change in how much time it took for the cars to pass through the intersection when the light turned green," said Jonathan Boreyko, assistant professor in the department of biomedical engineering and mechanics. "The results mean there's no point in getting closer to the car in front of you when traffic comes to a stop," he said.
The inspiration for the research first came to Boreyko when he was sitting in traffic one day. Noticing that cars had to wait for the car in front of them to regain a safe spacing before they could start moving again, he hypothesized that, contrary to popular opinion, it might actually be better for cars to stop farther apart from each other when idling at a traffic light.
He teamed up with Farzad Ahmadi, a fourth-year Ph.D. student in Virginia Tech's engineering mechanics program and the study's lead author, to investigate.
Using 10 volunteer drivers in identical vehicles, the researchers staged a series of experiments at the traffic light on the Virginia Tech Transportation Institute's Smart Road. Drivers systematically lined up at the light in a set of distances ranging from 1.25 to 50 feet, and a drone helicopter hovering overhead captured controlled bird's-eye-view footage of the traffic as drivers accelerated through the light.
Analysis showed that the time required for all cars to pass through remained relatively fixed, give or take about one second, for spacing distances up to 25 feet.
The two researchers used the thermodynamic concept of latent heat, the energy that a system loses during melting or evaporation, to describe what happens to cars stopped at a traffic light. Vehicles are jammed into a "solid phase" at a light and must waste energy "melting" back into a "liquid phase" before they can actually move through the intersection.
Boreyko and Ahmadi wondered if latent heat would have such a dramatic effect on other systems, such as slow-moving pedestrian traffic. Should people waiting in lines space themselves closer together or farther apart in order to move through more quickly?
The researchers set up a second round of experiments in The Cube at Virginia Tech's Moss Arts Center, a highly adaptable theater and laboratory equipped with synchronized cameras. Undergraduate students added a few conditions to their senior design experiments on human crowds to test Boreyko and Ahmadi's hypothesis.
"Latent heat had almost no effect for a line of pedestrians," said Boreyko. "The closer people got to each other, the faster they could empty the line. We realized that people move very slowly, but can accelerate very quickly, which minimizes the lag effect we saw with the cars at the traffic light."
The study's findings suggest that both pedestrians and drivers alike could see considerable benefits when taking a mindful approach to packing density in lines.
"Pedestrians waiting in a line should get as close to each other as possible if it's important for the line to empty quickly," said Boreyko. "But when you encounter a traffic jam or stop at a light, keep a safe and comfortable distance. You can just maintain whatever spacing you had when you were driving at full speed. You won't lose any time, but you'll reduce the odds of an accidental rear-end collision."
Ahmadi agreed with Boryeko's conclusion.
"When my father was teaching me how to drive, he told me that to prevent an accident, you should stop so you can easily see the rear bumper of the car in front of you at a traffic light," said Ahmadi. "I've never done that until I analyzed the data of this experiment."