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Civil Engineer Blog
Civil Engineer and Civil Engineering Student Blog
Learn More about the City You Live in
Sometimes people have the idea that they cannot enjoy themselves until they are in a completely different city or a completely different country and are on vacation. While visiting different cities in different countries definitely is fun and exciting, there are likely lots of interesting and fun things that you can do in the city […]
Exploring the Technical Aspects of Room Additions
Adding an extra room to your house might seem like a simple task in thought, but the work is more extensive than you might think. The most challenging part is getting every part of the new addition to line-up and match with the older portion of the home. Below are a few areas that require […]
WHAT IS A LASER AND HOW DOES IT WORK?
DID YOU KNOW THAT THE LASER WORD IS IN REALITY AN ACRONYMOUS? The word LASER stands for “Light Amplication by the Stimulated Emission of Radiation“. In simple words, light particles (photons) excited by the current release energy in the form of light. This light is directed in a bundle. In this way the laser beam […]
6 Advantages of Drone Surveying
Taking a survey of your property is necessary for drawing up proper legal property lines. You need to know boundaries before beginning any major construction, fencing, or adding service roads. Below are six ways using drone surveying services can give you an advantage. Improved Resolution Both helicopters and airplanes can take aerial video and pictures, […]
How to Add a Fitness Nook to Apartment
Fitness should be a significant part of your life, as it promotes good health and has hundreds of amazing benefits beyond that. However, sometimes it can be hard to find the perfect place to pursue your fitness goals. No worries though—you can practice some kind of fitness almost anywhere, which is why you should consider […]
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Civil Engineering News -- ScienceDaily
Civil Engineering News and Research. From new mathematical models for building better structures to new corrosion-resistant composites, read all the latest discoveries in civil engineering here.
Urban planning can help develop cities with reduced seismic risk
Researchers suggest a new methodology to establish urban modifiers that affect the building habitability in seismic risk areas.
Heat switch developed for electronics
Researchers have developed new technology for switching heat flows 'on' or 'off'.
Drug-producing bacteria possible with synthetic biology breakthrough
Bacteria could be programmed to efficiently produce drugs, thanks to breakthrough research into synthetic biology using engineering principles.
Modified, 3D-printable alloy shows promise for flexible electronics, soft robots
Researchers have taken a key step toward the rapid manufacture of flexible computer screens and other stretchable electronic devices, including soft robots.
Recycled carbon fiber improve permeable pavement
A research team is solving a high-tech waste problem while addressing the environmental challenge of stormwater run-off. The researchers have shown they can greatly strengthen permeable pavements by adding waste carbon fiber composite material. Their recycling method doesn't require using much energy or chemicals -- a critical factor for recycling waste materials.
Novel 3-D printing method embeds sensing capabilities within robotic actuators
Inspired by our bodies' sensory capabilities, researchers have developed a platform for creating soft robots with embedded sensors that can sense movement, pressure, touch, and even temperature.
Helium ions open whole new world of materials
Scientists have found an exciting new way to manipulate and design materials of the future at the atomic level and change the way they behave at a larger scale that opens the way to new applications such as early cancer biomarkers.
The way streets and buildings are arranged makes a big difference in how heat builds up
A new study shows a way to dial down the urban heat island effects that can pump up city temperatures, through different city planning based on classical physics formulas.
Microscopic solution prevents tip of scanning tunneling microscope from hitting surface
Researchers believe they have addressed a long-standing problem troubling scientists and engineers for more than 35 years: How to prevent the tip of a scanning tunneling microscope from crashing into the surface of a material during imaging or lithography.
Civil engineers devise a cost-saving solution for cities
Why fix a road today if it's slated to be ripped up for new sewers next summer?
New printing technique uses cells and molecules to recreate biological structures
Researchers have developed a printing technique using cells and molecules normally found in natural tissues to create constructs that resemble biological structures.
New method to replicate harsh conditions for testing materials
Confining a plasma jet can be stress-inducing... especially on the materials especially for shielding materials. Noting the limits inherent in the test methods currently used for these materials, scientists have proposed a ground-breaking new solution: using laser-accelerated particles to stress test materials subject to harsh conditions.
Cells 'walk' on liquids a bit like geckos
Researchers have discovered that cells can 'walk' on liquids a bit like the way geckos stick to other surfaces.
Engineers develop smart material that changes stiffness when twisted or bent
Scientists have developed a rubbery material that transforms itself into a hard composite when bent, twisted or squeezed. The new material could be used in medicine to support delicate tissues or in industry to protect valuable sensors.
Powerful LED-based train headlight optimized for energy savings
Researchers have designed a new LED-based train headlight that uses a tenth of the energy required for headlights using conventional light sources. If operated 8 hours every day, the electricity savings of the new design would reduce emissions of the greenhouse gas carbon dioxide by about 152 kilograms per year.
New process allows 3-D printing of nanoscale metal structures
By mixing metal ions and organic ligands, scientists have developed a process for the 3-D printing of metal structures that are smaller than ever before.
Star architecture and its impact on the city
The Guggenheim Museum by star architect Frank Gehry led to an economic boom in the Spanish city of Bilbao. This 'Bilbao Effect' is appealing to many urban planners and politicians who look to better position their cities in economic and social terms by building exceptional architectural projects. Researchers have studied three projects to investigate whether or not the desired effects materialize.
Super wood could replace steel
Engineers have found a way to make wood more than 10 times stronger and tougher than before, creating a natural substance that is stronger than many titanium alloys.
Got a coastal bridge to retrofit? There's an optimal approach for that
Life-cycle engineers incorporate -- for the first time -- the three most common failure modes for bridges vulnerable to floods, hurricanes and tsunamis into a risk assessment framework to optimize retrofitting strategies.
Building to withstand natural disasters pays off, new research shows
For every dollar the government spends to make existing buildings more resistant to wildfires, earthquakes, floods and hurricanes, $6 is saved in property losses, business interruption and health problems, according to a new study.
Controlling quantum interactions in a single material
By demonstrating that multiple quantum interactions can coexist and be controlled in a single material, researchers open the door for ultrafast, low-power electronics and quantum computers.
Research gives optical switches the 'contrast' of electronic transistors
Engineers have taken an important step toward the creation of a working optical transistor: precisely controlling the mixing of optical signals via tailored electric fields, and obtaining outputs with a near perfect contrast and extremely large on/off ratios.
Engineers develop flexible lithium battery for wearable electronics
Engineering researchers have developed a prototype of a high-performance flexible lithium-ion battery that demonstrates -- concurrently -- both good flexibility and high energy density. The battery is shaped like the human spine and allows remarkable flexibility, high energy density, and stable voltage no matter how it is flexed or twisted. The device could help advance applications for wearable electronics.
Engineers 3-D print shape-shifting smart gel
Engineers have invented a '4-D printing' method for a smart gel that could lead to the development of 'living' structures in human organs and tissues, soft robots and targeted drug delivery.
Weak hydrogen bonds key to strong, tough infrastructure
Engineers study what it takes to make strong and tough infrastructures by probing the interfacial interactions of polymer and cement, which are key to composite properties.
Blast, bubble and brain injury
Researchers have used supercomputers to simulate how bubbles caused by explosions may damage neurons in the brain. Using similar methods, the team reported how nanoparticles affect the fragility of ceramic materials used in space shuttles. They found that the conventional wisdom that nanoparticles improve material strength is not necessarily guaranteed.
Engineers develop flexible, water-repellent graphene circuits for washable electronics
Nanoengineers are finding new ways to use graphene printing technology. A new research paper describes how they're treating printed graphene with lasers to create electronic circuits that repel water. That could lead to washable electronics and better biological sensors.
Drones learn to navigate autonomously by imitating cars and bicycles
A new algorithm allows drones to fly completely by themselves through the streets of a city and in indoor environments. The algorithm had to learn traffic rules and adapt training examples from cyclists and car drivers.
3-D printing improves cell adhesion and strength of PDMS polymer
Combining two different polymer forms can switch manufacturing of silicone parts from molding, casting and spin coating of simple forms to 3-D printing of complex geometries with better mechanical characteristics and better biological adhesion, according to a team of researchers.
Method uses DNA, nanoparticles and lithography to make optically active structures
Researchers have developed a first-of-its-kind technique for creating entirely new classes of optical materials and devices that could lead to light bending and cloaking devices -- news to make the ears of Star Trek's Spock perk up. Using DNA as a key tool, the scientists took gold nanoparticles of different sizes and shapes and arranged them in two and three dimensions to form optically active superlattices. The structures could be programmed to exhibit almost any color across the visible spectrum.
Using crumpled graphene balls to make better batteries
The paper ball-like graphene particles stack into a porous scaffold to suppress filament growth of lithium metal that degrades the battery.
Building blocks to create metamaterials
Engineers have created a method to systematically design metamaterials using principles of quantum mechanics.
Lifespan of fuel cells maximized using small amount of metals
Researchers have described a new technique to improve chemical stability of electrode materials which can extend the lifespan by employing a very little amount of metals. Using computational chemistry and experimental data, the team observed that local compressive states around the Sr atoms in a perovskite electrode lattice weakened the Sr-O bond strength, which in turn promote strontium segregation.
Nuclear power plants must be able to withstand fires caused by aircraft impacts
Researches examined the transport, evaporation and combustion of liquids in large-scale fire incidents.
How mantis shrimp pack the meanest punch
Scientists have identified a unique structure that wraps around the mantis shrimp's club to protect it from self-inflicted damage as it crushes hard-shelled prey. The finding will help researchers develop ultra-strong materials for the aerospace and sports industries.
Novel 3-D printing technique yields high-performance composites
A team of researchers has demonstrated a novel 3-D printing method that yields unprecedented control of the arrangement of short fibers embedded in polymer matrices. They used this additive manufacturing technique to program fiber orientation within epoxy composites in specified locations, enabling the creation of structural materials that are optimized for strength, stiffness, and damage tolerance.
New method to detect illicit drone filming developed
A new technique to detect a drone camera illicitly capturing video is revealed in a new study by cyber security researchers in Israel. The study addresses increasing concerns about the proliferation of drone use for personal and business applications and how it is impinging on privacy and safety.
White graphene makes ceramics multifunctional
Bilayer white graphene combined with a ceramic creates a multifunctional material with high strength and toughness, according to new research. The material may be suitable for construction and refractory materials and applications in the nuclear industry, oil and gas, aerospace and other areas that require high-performance composites.
Batman's Gotham City provides test case for community resilience model
If a community is resilient, it can withstand and recover from an unanticipated disaster, like an earthquake, fire or flood. But since every disaster and every community is unique, a uniform measure for defining 'resilience' has been hard to come by for engineers and social scientists. A new study offers an innovative approach to defining resilience that could help communities better prepare for hazards.
Engineers make wearable sensors for plants, enabling measurements of water use in crops
Scientists are developing graphene-based, sensors-on-tape that can be attached to plants and can provide data to researchers and farmers about water use in crops. The technology could have many other applications, including sensors for biomedical diagnostics, for checking the structural integrity of buildings, for monitoring the environment and, with modifications, for testing crops for diseases or pesticides.
Engineers hack cell biology to create 3-D shapes from living tissue
Many of the complex folded shapes that form mammalian tissues can be explained with very simple instructions, bioengineers report. By patterning mechanically active mouse or human cells to thin layers of extracellular fibers, the researchers could create bowls, coils, and ripples out of living tissue. The cells collaborated mechanically through a web of these fibers to fold themselves up in predictable ways, mimicking natural developmental stages.
Killing it softly: How seemingly disparate disordered materials fail
Mechanical engineers predict how seemingly disparate disordered materials fail, using 'softness' as a criterion.
Nearly zero-energy buildings: A difficult challenge for Southern Europe
Most of the countries in Southern Europe are ill-prepared when it comes to implementing nearly zero-energy buildings, and in particular, when addressing the challenge to modernize existing buildings, say researchers who have proposed improvements for the development of future buildings.
New molecular printing technology could recreate complex chemical environments that resemble the human body
New patterning technology which could open opportunities to recreate complex biological environments has been developed.
Drug discovery could accelerate hugely with machine learning
Drug discovery could be significantly accelerated thanks to a new high precision machine-learning model.
Bicycles reacting to speed for stable cycling
A Dutch consortium has developed an electrical bicycle that prevents elderly people from falling. The smart Assistive Bicycle, called SOFIE, increases stability by, amongst others, a drive off assistance and by automatically lowering the saddle at low speeds.
Nanotexturing creates bacteria-killing spikes on stainless steel surfaces
By using an electrochemical etching process on a common stainless steel alloy, researchers have created a nanotextured surface that kills bacteria while not harming mammalian cells. If additional research supports early test results, the process might be used to attack microbial contamination on implantable medical devices and on food processing equipment made with the metal.
Volumetric 3D printing promises nearly instant builds
By using laser-generated, hologram-like 3D images flashed into photosensitive resin, researchers have discovered they can build complex 3D parts in a fraction of the time of traditional layer-by-layer printing.
DNA-origami surpasses important thresholds
It is the double strands of our genes that make them so strong. Using a technique known as DNA origami, biophysicists have been building nanometer-scale objects for several years. Now scientists have not only broken out of the nanometer realm to build larger objects, but have also cut the production costs a thousand-fold. These innovations open a whole new frontier for the technology.
New dental material resists plaque and kills microbes
Researchers have evaluated a new dental material tethered with an antimicrobial compound that can not only kill bacteria but can also resist biofilm growth. In addition, unlike some drug-infused materials, it is effective with minimal toxicity to the surrounding tissue, as it contains a low dose of the antimicrobial agent that kills only the bacteria that come in contact with it.
Nature's toughest substances decoded
Researchers have developed computer simulations to decode nature's toughest materials, like seashells and tooth enamel, to guide making synthetic multifunctional composites.
Is underground transit worse for your health?
When researchers set out to study the environmental benefits of different modes of public transit in LA, they found some unexpected results: certain SoCal public transit routes that were entirely underground exposed passengers to greater concentrations of carcinogens in the air.
Nature's blueprint for fracture-resistant cement
Based on the nanostructure of the sea urchin spines, scientists develop fracture-resistant cement.
Universal signature fundamental to how glassy materials fail
To find a link between seemingly disparate disordered materials and their behavior under stress, scientists studied an unprecedented range of disordered solids with constituent particles ranging from individual atoms to river rocks. Understanding materials failure on this fundamental level could be key for designing more shatter-resistant glasses or predicting geological phenomena like landslides.
Identifying optimal adaptation of buildings threatened by hurricanes, climate change
The need for adaptation strategies to reduce the threat of hurricanes to society is of critical importance, as evidenced by the recent damage to coastal regions in the U.S. and the Caribbean this past year. The fact that the number of residential buildings in coastal areas has increased significantly combined with the increasing risks of impacts of due climate change means that the cost of damage to coastal developments are likely to continue to rise.
New microscope sets a record for visualizing surface wetting properties
Wetting is an everyday phenomenon that represents how well liquid spreads on a surface. When water comes into contact with an extremely water-repellent, or ‘superhydrophobic’ surface, droplets bead up and roll off easily. Researchers have developed a measurement technique called Scanning Droplet Adhesion Microscopy (SDAM) to understand and characterize the wetting properties of superhydrophobic materials.
Towards better understanding of railway ballast
Mathematical models are extremely limited at modeling ballast, the gravel layer located under railway tracks. Researchers have shown that a large part of the energy introduced by a train passing is trapped by the ballast. Their work shows that this trapping phenomenon, which is very dependent on train speed, could cause accelerated ballast degradation in railway tracks.
Biomechanical model could reduce wobbling of pedestrian bridges
The dangerous wobbling of pedestrian bridges could be reduced by using biomechanically inspired models of pedestrian response to bridge motion and a mathematical formula to estimate the critical crowd size at which bridge wobbling begins, according to a study.
Scientists capture colliding organic nanoparticles on video for first time
An American research team is the first to capture on video organic nanoparticles colliding and fusing together. This unprecedented view of 'chemistry in motion' will aid Northwestern nanoscientists developing new drug delivery methods as well as demonstrate to researchers around the globe how an emerging imaging technique opens a new window on a very tiny world.
New motion sensors a major step toward low-cost, high-performance wearable technology
Researchers have developed a class of breakthrough motion sensors that could herald a near future of ubiquitous, fully integrated and affordable wearable technology.
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