نتایج جستجو برای: standard compaction

تعداد نتایج: 526234  

Journal: :IEEE Trans. on CAD of Integrated Circuits and Systems 1995
Jau-Shien Chang Chen-Shang Lin

Test set compaction for combinational circuits is studied in this paper. Two active compaction methods based on essential faults are developed to reduce a given test set. The special feature is that the given test set will be adaptly renewed to increase the chance of compaction. In the first method, forced pair-merging, pairs of patterns are merged by modifying their incompatible specified bits...

Journal: :آب و خاک 0
سحر اخوان محمود شعبانپور مسعود اصفهانی

in order to study the effect of soil compaction on root and shoot growth of wheat plants (shahriar variety), a greenhouse pot experiment was conducted in guilan university. the study design was factorial with completely randomized in three replications. treatments included three compaction levels; (normal compaction, compaction of ten percent and twenty percent) and two type of soil texture (cl...

2006
Farhana Rahman

Mechanistic pavement design procedures based on elastic layer theory require characterization of all pavement layer materials including subgrade soil. This paper discusses the subgrade stiffness obtained from a new compaction device called the Intelligent Compaction (IC) roller on highway embankment projects in Kansas. Three test sections on two routes were compacted using a single, smooth stee...

2011
Guihua Chen Ray R. Weil

The yield of rainfed crops is commonly limited by the availability of soil water during the summer growing season. Channels produced by cover crop roots in fall/winter when soils are relatively moist may facilitate the penetration of compacted soils by subsequent crop roots in summer when soils are relatively dry and hard. Our objective was to determine the effects of fall cover crops on maize ...

Journal: :Current Biology 2004
Terence R Strick Tatsuhiko Kawaguchi Tatsuya Hirano

BACKGROUND Condensin is thought to contribute to large-scale DNA compaction during mitotic chromosome assembly. It remains unknown, however, how the complex reconfigures DNA structure at a mechanistic level. RESULTS We have performed single-molecule DNA nanomanipulation experiments to directly measure in real-time DNA compaction by the Xenopus laevis condensin I complex. Condensin can bind to...

Journal: :Journal of applied physiology 2007
Jie Qi Liqun Chi James Faber Beverly Koller Albert J Banes

Bone remodeling is a localized process, but regulated by systemic signals such as hormones, cytokines, and mechanical loading. The mechanism by which bone cells convert these systemic signals into local signals is not completely understood. It is broadly accepted that the "prestress" in cytoskeleton of cells affects the magnitude of cellular responses to mechanical stimuli. Prestress derives fr...

Journal: :Journal of Korean Powder Metallurgy Institute 2007

Journal: :The Journal of bone and joint surgery. British volume 2007
B J R F Bolland A M R New S P G Madabhushi R O C Oreffo D G Dunlop

The complications of impaction bone grafting in revision hip replacement includes fracture of the femur and subsidence of the prosthesis. In this in vitro study we aimed to investigate whether the use of vibration, combined with a perforated tamp during the compaction of morsellised allograft would reduce peak loads and hoop strains in the femur as a surrogate marker of the risk of fracture and...

1999

Issue: The moisture content of a fill material will affect its compaction characteristics and needs to be evaluated during quality control of the fill operation. When the fill is drier than its optimum moisture content, any moisture in the fill serves as a lubricant and helps the relative movement of the particles when densifying under vibratory compaction. When the fill is wetter than its opti...

Journal: :مهندسی عمران فردوسی 0

compacted low strength material (clsm) made with material such as fly ash and recycled aggregates is used as filler at city infrastructure canals without compaction need. experimental small specimens and large canals were casted with this concrete and tested to give several results. test results of compression strengths on 12 different designs shows that this concrete with high workability and ...

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