abstract water deficit and consecutive droughts have lead to drought stress in most parts of the world recently. we need prepare a good program to use better available water. different material can be used to increase water use efficiency. super absorbent is one of the materials used around the world. these materials absorb water in the soil so that reserved water is usable by plant in the time...

Abstract The difficulties in designing high-performance hydrogen evolution reaction (HER) catalysts lie the manipulation of adsorption behaviors transition metals (TMs). Topological chiral semimetals with super-long Fermi arc surface states provide an ideal platform for engineering catalytic performance TMs through metal-support interaction. We found trends can be modified significantly when de...

It has been an important and interesting topic in soliton theory for searching for new Lax integrable or Liouville integrable systems as many as possible such that they are associated with certain evolution equations with physical meaning. The simple and efficient method to obtain continuous or discrete integrable systems was proposed Tu. Ma developed it and called it Tu scheme. By taking advan...

Feedback from AGN is thought to be key in shaping the life cycle of their host galaxies by regulating star-formation activity. Therefore, understand impact on star formation, it essential trace molecular gas out which stars form. In this paper we present first systematic study CO properties hosts at z~2 for a sample 27 X-ray selected spanning two orders magnitude bolometric luminosity (Lbol= 10...

the aim of this study is to evaluate the sport marketing mix and its seven elements (product, price, promotion, place, public relations, people, and physical evidence) in iran’s volleyball super league from the viewpoint of ministry of sport and volleyball federation managers in two conditions, namely existing and optimal. for this purpose, 102 subjects, among them the official staffs in the mi...

Oxygen reduction reaction (ORR) is one of the most important electrochemical reactions for fuel cells. However, commercial Pt-based catalysts used have limitations such as their deactivation by carbon monoxide and Pt scarcity. In present work, small highly-dispersed copper iron clusters were anchored onto composite supports based on nitride (C3N4) nanostructures a highly porous material. Cataly...

Peer-to-Peer technologies have been widely applied for multimedia applications. The super-peer based approach provides an efficient way to run applications by exploring nodes’ heterogeneity. In P2P live video streaming, even though the number of stable nodes is small, they have significant impact on the performance of the network. Thus, we present a super-peer-based overlay design, where stable...

BACKGROUND: Drought stress and climate changes cause damage led to reduction in agricultural production. OBJECTIVES: Evaluation the impact of different levels of super absorbent polymer (SAP) on reducing the effects of drought stress on some physiological traits and activity of some antioxidant enzymes in wheat crop. METHODS: Current research...

We consider and compare super Plücker Ptolemy relations from the perspective of constructing cluster algebras. develop structure Grassmannians Gr2|0(n|1) for arbitrary n, which was indicated earlier in our joint work with Th. Voronov. also analyze “weighted projective” case obtain a new simple form Grr|1(n|1). To this end, we establish properties Berezinians certain type matrices (which call “w...