نتایج جستجو برای: co nd ring
تعداد نتایج: 481152 فیلتر نتایج به سال:
Dissolved Rare Earth Elements (REE) and radiogenic neodymium (Nd) isotope composition (?Nd) of seawater are widely used geochemical tools in studying marine processes, but their modern ocean budgets poorly understood. Recent discoveries large benthic fluxes REE with unique ?Nd signatures from sediments, particularly the deep-sea, have led to a “bottom-up” hypothesis, which suggests that early d...
The coercivity Hc; of rapidly quenched Nd-Fe-B is linked to the multiphase structure of the alloys: high coercivities require the suppression of the &Nd solid solution and the exictence of the intergranular Nd-rich phase. In quarternary Pr-Fe-Co-B alloys H,i and the remanence J, depend in the same way on Co content as in the Nd-FeCo-B system. However, compared with rapidly quenched Nd-Co-B samp...
BACKGROUND The aims of this study were to analyze associations of dopamine receptor genes (DRD1-5) with Major Depressive Disorder (MDD) and nicotine dependence (ND), and to investigate whether ND moderates genetic influences on MDD. METHODS The sample was ascertained from the Finnish Twin Cohort. Twin pairs concordant for smoking history were recruited along with their family members, as part...
A series of Zn1-xCoxNdyFe2-yO4 spinel ferrites (x=0,0-0.5, y=0.00-0.10) was synthesized using the co-precipitation method sintered at 1000 o C. Synthesized Ferrites were characterized by x-ray diffraction (XRD), scanning electron microscopy (SEM) and vibrating sample magnetometery (VSM). The diffraction patterns show the formation of the spinel phase along with some traces of second phase Nd2O3...
Let $R$ be a ring, and let $n, d$ be non-negative integers. A right $R$-module $M$ is called $(n, d)$-projective if $Ext^{d+1}_R(M, A)=0$ for every $n$-copresented right $R$-module $A$. $R$ is called right $n$-cocoherent if every $n$-copresented right $R$-module is $(n+1)$-coprese-nted, it is called a right co-$(n,d)$-ring if every right $R$-module is $(n, d)$-projective. $R$...
Address for r Co Co Corr rr rres es espo po pond nd n en en ence ce ce:
BACKGROUND Acne scarring is treatable by a variety of modalities. Ablative carbon dioxide laser (ACL), while effective, is associated with undesirable side effect profiles. Newer modalities using the principles of fractional photothermolysis (FP) produce modest results than traditional carbon dioxide (CO(2)) lasers but with fewer side effects. A novel ablative CO(2) laser device use a technique...
A Ad Add dr dress for r Co Co Corr rr rres espo po pond nd nden en ence ce
The topotactic connection style of oxygen octahedron/tetrahedron in transition metal oxides (TMOs) is an important feature that modulates their corresponding physical properties. Using a simple chemical doping technique, we obtained Sr1−xNdxCoO3-δ with crystal structure from face-shared octahedron to corner-shared octahedron/tetrahedron. Rietveld analyses the X-ray diffraction (XRD) patterns sh...
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