there is considerable agreement among linguists that thematic analysis offers writers insights into manuscripts that may be rejected by international journals due to thematic organization problems. whereas many comparative studies have provided valuable information about thematic progression (tp), the role of peripheral themes (pts) has almost been neglected. using the revised model of the tp p...

The reaction of (trimethylsilyl)acetylene with the phosphinito phosphanido Pt(I) complex [(PHCy2)Pt(μ-PCy2){κ2P,O-μ-P(O)Cy2}Pt(PHCy2)](Pt-Pt) (1) results in the protonation of the Pt-Pt bond with the formation of the bridging hydride complex [(PHCy2)(Me3SiC≡C)Pt(μ-PCy2)(μ-H) Pt(PHCy2){κP-P(O)Cy2}](Pt-Pt) (2), which was characterized by spectroscopic, spectrometric and XRD analyses. Complex 2 ex...

به علت تغییرات حجم ناشی از خطای ساخت، فرکانس کاواک‌های شتاب‌دهی در شتاب‌دهنده‌های خطی الکترون تغییر می‌کند. نتیجه تنظیم فرکانسی کاواک‌ها یکی مراحل مهم تست سرد است که باید الزامات آن طراحی لحاظ شود. پروژه ساخت ساختار موج‌ایستا برای شتاب­دهنده با دو انرژی، پس طراحی، یک آلومینیمی (شامل نیم کاواک و تزویج) ساخته شد. این جبران پیچ‌های استفاده پیچ‌ها جزیی کاواک‌ها، آن‌ها را می‌دهند. مقاله محاسبات شبیه...

A novel Pt-based catalyst with highly regular, periodic inverse opal microstructure was fabricated in a microchannel reactor, and catalytic testing revealed excellent conversion and stable activity for propane combustion at low temperatures.

The syntheses of a novel hydroxyl-functionalized tetradentate NHC/pyridine hybrid ligand and the corresponding Ag(i) and Fe(ii) complexes are presented. Spectroscopic and X-ray diffraction techniques are used for structural investigations and cyclic voltammetry measurements reveal interesting electronic properties. Transmetalation of the trinuclear Ag(i) complex (C1) yields a mononuclear and a ...

The facile one-phase synthesis of N-heterocyclic carbene-stabilized gold nanoparticles (NHC-AuNP) by reduction of NHC-gold(I) complexes and their self-assembly into 3D superlattices is presented.

We report calculated oxygen reduction reaction energy pathways on multi-metal-atom structures that have previously been shown to be thermodynamically favorable. We predict that such sites have the ability to spontaneously cleave the O2 bond and then will proceed to over-bind reaction intermediates. In particular, the *OH bound state has lower energy than the final 2 H2O state at positive potent...

A sequence S is potentiallyKp1,p2,...,pt graphical if it has a realization containing aKp1,p2,...,pt as a subgraph, whereKp1,p2,...,pt is a complete t-partite graph with partition sizes p1, p2, ..., pt(p1 ≥ p2 ≥ ... ≥ pt ≥ 1). Let σ(Kp1,p2,...,pt, n) denote the smallest degree sum such that every n-term graphical sequence S with σ(S) ≥ σ(Kp1,p2,...,pt, n) is potentially Kp1,p2,...,pt graphical....