Tensile strength is the stress (measured in Newtons/m2 or psi) at which a sample of solid material will break from tension.

Tensile properties are the mechanical properties of the material measured under the influence of a tensile, or pulling stress. In the industry, tensile properties, sometimes just called "tensiles", typically include the ultimate tensile strength, tensile yield strength, and elongation measured over a specified gauge length. See similar questions...

While St. John's wort won't take the stress away, it will help you deal with it better. The herb should be taken regularly, at the ususl doses, and not just before stressful events, since it needs to build up in the system to be the most effective. You can also add kava, 70 mg or so of standardized extract (30-percent kavalactones), three times daily at times of increased stress. See similar questions...

ANSWER: A minimum of 5 micrograms per square centimeter of bag surface. Keep in mind that enough retronectin must be added to coat both top and bottom of the interior of the bag. Accordingly add enough retronectin for both surfaces. It is believed that best transduction results are obtained if the retronectin is allowed to attach for two hours at room temperature or 30 minutes at 37 degrees. ANSWER: We made silicone rubber bags about 25 years ago but they were not satisfactory for cell culture. See similar questions...

It’s the return earned on an investment taking into account the annual income and its present capital value. There are a number of different types of yield, and in some cases different methods of calculating each type. See similar questions...

Bioprocessing Equipment Design and Manufacturing Standards published in 1997, by the American Society of Mechanical Engineers. Top See similar questions...

In general, the majority of our phantoms are made of Lucite ® (Polymethyl Methacrylate). This material is also known as Perspex ® and Plexiglass. Information concerning the atomic number, density and composition of Lucite ® can be found here on the web site of the National Institute of Standards and Technology (NIST). MMA has a density of 0.94 g/cm3. The systematic name is methyl 2-methyl-2-propenoate. Its molecular formula is H2C=C(CH3)COOCH3. See similar questions...

A stress echo is a form of echocardiography in which an echocardiographer obtains a set of images of the heart in the resting conditions. Then the patient exercises on a treadmill or other equipment to increase the heart rate and the demand of the heart. When the patient reaches his or her maximum exercise capacity a second set of images are obtain within one minute. See similar questions...

This is one theory about what may cause or contribute to the onset or exacerbation of vitiligo. Oxidative stress is an over-accumulation of hydrogen peroxide in the skin. Every person develops hydrogen peroxide in the skin, as a result of natural biological processes. An enzyme called "catalase" normally breaks down the hydrogen peroxide in the skin into water and oxygen. However, some people with vitiligo may have a problem manufacturing, using or delivering catalase to the skin. See similar questions...

A stress test is the common term for an exercise ECG, in which disks are attached to the patient's arms and legs as well as to the chest. While connected to the ECG machine, the patient exercises on a treadmill machine or stationary bicycle. This test reveals if exercising causes (or worsens) the arrhythmia and if there is evidence of inadequate blood flow to the heart (a condition known as ischemia). See similar questions...

Patients lose urine when exercising or moving in a certain way. In some cases you may lose urine when you sneeze, cough, laugh, get up from a chair, or get out of bed. While walking or doing other exercises you may also leak urine. See similar questions...

These are the professional organizations for mechanical engineering and aerospace engineering. Cornell student chapters are active in the Sibley School. M.E. students are encouraged to participate. Visit http://www.rso.cornell.edu/asme/ for more details. See similar questions...

Is there any suggestion or requirement regarding medium (i.e. chamber music, voice and piano, orchestral, choral)? I have several recent works that might prove successful and would like to determine which one(s) to submit. Please choose the one work that you feel would strongly represent you at this time. You will always be free to present another work the following year. See similar questions...

There are many software packages that can do this type of analysis. The GCG software package contains the Composition tool, which will determine the composition of sequences along with dinucleotide and trinucleotide content for nucleotide sequences. Click here for an example of the results from the Composition program run on the yeast genome. The S288C strain that was sequenced for the systematic sequencing project has a nonsense mutation in TRP1; the sequence in SGD reflects this. See similar questions...

The deepest cores taken in the area indicate that the soil is composed of silty sands, clays, and gravels which extend down at least 20 m (70 ft). Any rocks would be found at least 7000 ft down since all the material found here is a result of relatively recent sedimentation (on the order of tens of thousands of years ago). An oil well from 1945 drilled to 10,000 feet in Cape Hatteras and found no sign of bed rock. See similar questions...

The official FIRST season begins in January, with the kick-off and the beginning of the six weeks in which teams can build their robot. During these six weeks, the robot must be completely built, after which teams are required to ship it to their first regional. In March, every week for five weeks, anywhere from five to seven regionals occur in various parts of the United States, Canada, and Israel. Teams are allowed to enter two out of the twenty-seven possible regionals. See similar questions...

The committee's specific composition was arrived at in a re-organization of university governance in the 1980s and is compliant with the Collective Bargaining Agreement. The composition is provided for in Subsection 1A of the UCC Manual. Twelve faculty members, each of the three college deans, and three student representatives together comprise the 18 regular members of UCC. See similar questions...

Stress is the impact of every day living on our body, as well as on our mental and emotional states. It is our experience of and ability to cope with unpleasant stimulation, possibly leading to ill health. See similar questions...