Construction News – OSHA on Workplace Fatalities: 'America's Workers Deserve Better'


The Bureau of Labor Statistics' Census of 2016 Fatal Occupational Injuries reports there were 5,190 workplace fatalities in 2016, a 7-percent increase from 2015. The fatal injury rate also increased from 3.4 per 100,000 full-time equivalent workers in 2015 to 3.6 in 2016. More workers lost their lives in transportation incidents than any other event in 2016, accounting for about one out of every four fatal injuries….


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Therefore, I urge you, brothers and sisters, in view of God’s mercy, to offer your bodies as a living sacrifice, holy and pleasing to God—this is your true and proper worship.

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Critical role of nanoparticle transformation discovered — ScienceDaily

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Scientists at the Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab) have developed a new electrocatalyst that can directly convert carbon dioxide into multicarbon fuels and alcohols using record-low inputs of energy. The work is the latest in a round of studies coming out of Berkeley Lab tackling the challenge of creating a clean chemical manufacturing system that can put carbon dioxide to good use.

In the new study, published this week in the Proceedings of the National Academy of Sciences (PNAS), a team led by Berkeley Lab scientist Peidong Yang discovered that an electrocatalyst made up of copper nanoparticles provided the conditions necessary to break down carbon dioxide to form ethylene, ethanol, and propanol.

All those products contain two to three carbon atoms, and all are considered high-value products in modern life. Ethylene is the basic ingredient used to make plastic films and bottles as well as polyvinyl chloride (PVC) pipes. Ethanol, commonly made from biomass, has already established its place as a biofuel additive for gasoline. While propanol is a very effective fuel, it is currently too costly to manufacture to be used for that purpose.

To gauge the energy efficiency of the catalyst, scientists consider the thermodynamic potential of products — the amount of energy that can be gained in an electrochemical reaction — and the amount of extra voltage needed above that thermodynamic potential to drive the reaction at sufficient reaction rates. That extra voltage is called the overpotential; the lower the overpotential, the more efficient the catalyst.

“It is now quite common in this field to make catalysts that can produce multicarbon products from CO2, but those processes typically operate at high overpotentials of 1 volt to attain appreciable amounts,” said Yang, a senior faculty scientist at Berkeley Lab’s Materials Sciences Division. “What we are reporting here is much more challenging. We discovered a catalyst for carbon dioxide reduction operating at high current density with a record low overpotential that is about 300 millivolts less than typical electrocatalysts.”

Cube-like copper catalyst

The researchers characterized the electrocatalyst at Berkeley Lab’s Molecular Foundry using a combination of X-ray photoelectron spectroscopy, transmission electron microscopy, and scanning electron microscopy.

The catalyst consisted of tightly packed copper spheres, each about 7 nanometers in diameter, layered on top of carbon paper in a densely packed manner. The researchers found that during the very early period of electrolysis, clusters of nanoparticles fused and transformed into cube-like nanostructures. The cube-like shapes ranged in size from 10 to 40 nanometers.

“It is after this transition that the reactions to form multicarbon products are occurring,” said study lead author Dohyung Kim, a graduate student in Berkeley Lab’s Chemical Sciences Division and at UC Berkeley’s Department of Materials Science and Engineering. “We tried to start off with pre-formed nanoscale copper cubes, but that did not yield significant amounts of multicarbon products. It is this real-time structural change from copper nanospheres to the cube-like structures that is facilitating the formation of multicarbon hydrocarbons and oxygenates.”

Exactly how that is happening is still unclear, said Yang, who is also a professor at UC Berkeley’s Department of Materials Science and Engineering.

“What we know is that this unique structure provides a beneficial chemical environment for CO2 conversion to multicarbon products,” he said. “The cube-like shapes and associated interface may be providing an ideal meeting place where the carbon dioxide, water, and electrons can come together.”

Many paths in the CO2-to-fuel journey

This latest study exemplifies how carbon dioxide reduction has become an increasingly active area in energy research over the past several years. Instead of harnessing the sun’s energy to convert carbon dioxide into plant food, artificial photosynthesis seeks to use the same starting ingredients to produce chemical precursors commonly used in synthetic products as well as fuels like ethanol.

Researchers at Berkeley Lab have taken on various aspects of this challenge, such as controlling the product that comes out of the catalytic reactions. For instance, in 2016, a hybrid semiconductor-bacteria system was developed for the production of acetate from CO2 and sunlight. Earlier this year, another research team used a photocatalyst to convert carbon dioxide almost exclusively to carbon monoxide. More recently, a new catalyst was reported for the effective production of synthesis gas mixtures, or syngas.

Researchers have also worked on increasing the energy efficiency of carbon dioxide reduction so that systems can be scaled up for industrial use.

A recent paper led by Berkeley Lab researchers at the Joint Center for Artificial Photosynthesis leverages fundamental science to show how optimizing each component of an entire system can accomplish the goal of solar-powered fuel production with impressive rates of energy efficiency.

This new PNAS study focuses on the efficiency of the catalyst rather than an entire system, but the researchers point out that the catalyst can be hooked up to a variety of renewable energy sources, including solar cells.

“By utilizing values already established for other components, such as commercial solar cells and electrolyzers, we project electricity-to-product and solar-to-product energy efficiencies up to 24.1 and 4.3 percent for two-to-three carbon products, respectively,” said Kim.

Kim estimates that if this catalyst were incorporated into an electrolyzer as part of a solar fuel system, a material only 10 square centimeters could produce about 1.3 grams of ethylene, 0.8 grams of ethanol, and 0.2 grams of propanol a day.

“With continued improvements in individual components of a solar fuel system, those numbers should keep improving over time,” he said.


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“Go,” said Jesus, “your faith has healed you.” Immediately he received his sight and followed Jesus along the road.

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Construction News – Criticism of Kansas Prison Plan Reflects Lawmakers' Distrust


TOPEKA, Kan. (AP) Kansas legislators' criticism of a plan to build a new state prison reflects bipartisan mistrust of the Department of Corrections and doubts that it seriously considered a potentially cheaper alternative to leasing the new facility from the company building it. The department plans to have private-prison giant CoreCivic Inc., based in Nashville, Tenn., oversee construction of a 2,400-bed prison in Lansing to replace the state's oldest and largest prison there….


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Good will come to those who are generous and lend freely, who conduct their affairs with justice.

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Trump Signs $36.5B Disaster-Relief Bill


Enactment of a second major post-disaster aid measure provides billions of dollars in additional funds to help Puerto Rico and other areas recover from recent natural disasters.


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Carry each other’s burdens, and in this way you will fulfill the law of Christ.

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Construction News – NYC Officials Break Ground on 3 Hudson Boulevard


On Nov. 3, Gov. Andrew M. Cuomo announced the official ground breaking of 3 Hudson Boulevard, The Moinian Group's 53-story, 2 million-sq.-ft. office tower, located in the Hudson Yards District of New York City. With infrastructure work on the 34th Street train station now complete, Moinian will move to complete the tower, targeting LEED Gold certification, by 2021….


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However, I consider my life worth nothing to me; my only aim is to finish the race and complete the task the Lord Jesus has given me—the task of testifying to the good news of God’s grace.

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Construction News – TransCanada Asks State to Reconsider Alternate Keystone XL Route Approval


TransCanada Corp., the company behind the Keystone XL pipeline, has requested that Nebraska regulators reconsider their approval the week of Nov. 20, of the pipeline's alternate route, rather than the one that the company has said it would prefer, PBS reported. Russ Girling, president and CEO of TransCanada, said in a statement that the company was looking into how the approved route would “impact the cost and schedule of the project,” PBS reported….


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Instead, speaking the truth in love, we will grow to become in every respect the mature body of him who is the head, that is, Christ.

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Company Supports Breast Cancer Awareness Month With Pink Hard Hats


For the ninth consecutive year, EMCOR Group, Inc., a construction company, has announced that thousands of its employees throughout the U.S. will commemorate Breast Cancer Awareness Month in October by wearing EMCOR pink hard hats in support of the company's "Protect Yourself. Get Screened Today." campaign….


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“He himself bore our sins” in his body on the cross, so that we might die to sins and live for righteousness; “by his wounds you have been healed.”

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Construction News – Gilbane Building Co. Clears Way for New Judicial Complex


After demolishing the former Georgia Archives building in downtown Atlanta last March, the Gilbane Building Co. started construction on the new $122 million State Judicial Complex (SJC), a Georgia Building Authority (GBA) project that will house the Georgia Court of Appeals and state Supreme Court, and various other offices for the judicial system….


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For the Spirit God gave us does not make us timid, but gives us power, love and self-discipline.

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Construction News – U.S. DOT Publishes Drug Testing Rule to Enhance Safety While Combating Opioid Epidemic


The U.S. Department of Transportation (DOT) issued a final rule Nov. 13 that expands the Department's current drug testing panel to include certain semi-synthetic opioids (i.e., hydrocodone, hydromorphone, oxymorphone, and oxycodone) to its drug testing panel for DOT-regulated industries. This is a direct effort to enhance safety, prevent opioid abuse and combat the nation's growing opioid epidemic….


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“Go,” said Jesus, “your faith has healed you.” Immediately he received his sight and followed Jesus along the road.

Musk to Begin Boring Into Maryland for Hyperloop Tunnel


With Maryland officials' support, Elon Musk's Boring Company will begin to dig the first miles of a tunnel that will hold his hyperloop as it travels from New York to Washington, D.C. The company will start construction beneath a 10-mile portion of Route 295 in Maryland, Bisnow reported. According to state officials, the digging for the project would be supported by private funding….


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You, Lord, are forgiving and good, abounding in love to all who call to you.

AASHTO Board Elects Braceras as Vice President


On Sept. 28, the American Association of State Highway and Transportation Officials' Board of Directors elected Tennessee Department of Transportation Commissioner John Schroer, as the association's president. Carlos Braceras P.E., executive director of the Utah Department of Transportation was elected vice president and Scott Bennett P.E., director of the Arkansas Department of Transportation, was elected secretary-treasurer….


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Ill-gotten treasures have no lasting value, but righteousness delivers from death.

Heavy Equipment Heavy Truck Fails 2017 Excavator Accidents Caught On Tape Construction Machine Win


Heavy Equipment Heavy Truck Fails 2017 Excavator Accidents Caught On Tape Construction Machine Win

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Seek good, not evil, that you may live. Then the Lord God Almighty will be with you, just as you say he is.

Building Tomorrow – Robotics in Construction


The future is now: see the robots revolutionising the construction industry with Skanska UK.

Part of The CIOB’s “Building Tomorrow” news programme produced in partnership with ITN Productions.

Websites:
http://www.skanska.co.uk/
http://www.ciob.org/
http://www.itnproductions.co.uk/

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As you do not know the path of the wind, or how the body is formed in a mother’s womb, so you cannot understand the work of God, the Maker of all things.

Pittsburgh International Airport Set for $1.1B Upgrade


The Pittsburgh International Airport’s $1.1-billion proposed modernization recently received local approval but still needs the Federal Aviation Administration’s authorization.


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In the beginning God created the heavens and the earth. Now the earth was formless and empty, darkness was over the surface of the deep, and the Spirit of God was hovering over the waters.