نتایج جستجو برای: compression testing
تعداد نتایج: 424822 فیلتر نتایج به سال:
This paper tries to study the effect of geosynthetic inclusion on the improvement of the load-settlement characters of two layered soil. In addition, the effect of geogrid and geotextile in reduction of the required thickness of subbase layer in unpaved roads is studied. Considering the vast application of bearing ratio tests in road construction projects, this test is used in present investiga...
hereby we report a patient with thalassemia major having extradural cord compression at t3-t9 levels due to a mass of extramedullary hematopoiesis (emh) tissue, whose treatment was successful with hypertransfusion therapy alone. the patient was a 23-year-old man who had not received regular blood transfusion since two years before admission. he suffered from paraparesis with a history of progre...
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One of the main promises of an ERP implementation is the ‘full integration of a business’. Reports of shadow systems in post ERP implementations suggest that this is not always the case. Using an exploratory single case study method with grounded theory coding techniques this study investigates why shadow systems exist after an ERP implementation. This paper provides a theoretical framework whi...
Linerboard and medium for corrugated packaging has been traditionally marketed on the basis of Ring Crush (RCT) specifications. The current industry trend has replaced manual testing by automated in-line testing which excludes RCT but has basis weight, an ultrasonic stiffness index (TSI), and short span compression (SCT) commonly available. This paper shows how using a combination of these meas...
Compression testing of continuous fiber reinforced materials is challenging, because a great number competing failure modes and instabilities on different length scales have to be considered. In comparison tensile testing, the results are more affected by chosen test set-up. Effects introduced set-up as well type damage in mainly investigated for quasi-static loading. This not case cyclic compr...
This article presents a new digital image compression scheme which exploits a human visual system property—namely, recognizing images by their regions—to achieve high compression ratios. It also assigns a variable bit count to each image region that is proportional to the amount of information it conveys to the viewer. The new scheme copes with image nonstationarity by adaptively segmenting the...
PURPOSE In practice, the surgeon must rely on screw position (insertion depth) and tactile feedback from the screwdriver (insertion torque) to gauge compression. In this study, we identified the relationship between interfragmentary compression and these 2 factors. METHODS The Acutrak Standard, Acutrak Mini, Synthes 3.0, and Herbert-Whipple implants were tested using a polyurethane foam scaph...
Testing systems-on-a-chip (SOC) involves applying huge amounts of test data, which is stored in the tester memory and then transferred to the circuit under test (CUT) during test application. Therefore, practical techniques, such as test compression and compaction, are required to reduce the amount of test data in order to reduce both the total testing time and the memory requirements for the t...
in civil engineering concrete is a material combined of hydraulic cement, sand, gravel and water. gravel and sand compose 60 to 70 percent of concrete. these aggregates support compression force of concrete. cement paste acts as glue to stick grain together. in bushehr factories producing aggregates do not operate according to astm standards, so that fineness modulus (fm) of the produced sands ...
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