نتایج جستجو برای: gd2o3 deg
تعداد نتایج: 7029 فیلتر نتایج به سال:
Recent evidence that echinoids of the genus Echinometra have moderate visual acuity that appears to be mediated by their spines screening off-axis light suggests that the urchin Strongylocentrotus purpuratus, with its higher spine density, may have even more acute spatial vision. We analyzed the movements of 39 specimens of S. purpuratus after they were placed in the center of a featureless tan...
Knowledge of the coupled motions, which develop under compressive loading of the knee, is useful to determine which degrees of freedom should be included in the study of tibiofemoral contact and also to understand the role of the anterior cruciate ligament (ACL) in coupled motions. The objectives of this study were to measure the coupled motions of the intact knee and ACL-deficient knee under c...
The development of axial muscles has been investigated in spring-spawning Atlantic herring (Clupea harengus L.) reared at 5, 8, 12 and 15 °C. In 1994, around 90 % of embryos hatched after 28 days at 5 °C, 16 days at 8 °C, 9 days at 12 °C and 8 days at 15 °C. The somites were formed from cells of the paraxial mesoderm in a rostral to caudal direction, starting at the neural p...
Gd2O3–B2O3 binary glasses with a wide composition range were fabricated using levitation technique, which allowed the Gd2O3 content of to be increased 60 mol %, is much greater than possible conventional melt-quenching techniques. The dependence thermal, optical, and vibrational properties was investigated. glass transition crystallization temperatures decreased slightly in B-rich region increa...
Let K〈X〉 be a free associative algebra over a field K of characteristic 0 and let each of the noncommuting polynomials f, g ∈ K〈X〉 generate its centralizer. Assume that the leading homogeneous components of f and g are algebraically dependent with degrees which do not divide each other. We give a counterexample to the recent conjecture of Jie-Tai Yu that deg([f, g]) = deg(fg − gf) > min{deg(f),...
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