Results 41 to 50 of about 236,548 (255)

Molecular line emissions from pre main sequence objects [PDF]

, 1997
We present some preliminary results obtained with the LWS G.T. programme on the study of young objects driving molecular outflows. In particular, we discuss the importance of molecular emission in these sources and address the role of the H20 ...
Benedettini, M., Caux, E., Ceccarelli, M. C., Clegg, P. E., Correia, J. C., di Giorgio, A. M., Giannini, T., Griffin, M. J., Leeks, S. J., Liseau, R., Lorenzetti, D., Molinari, S., Nisini, B., Saraceno, P., Smith, H., Spinoglio, L., Tomassi, E., White, G. J.   +17 more
core  

A virtual element method for the vibration problem of Kirchhoff plates [PDF]

, 2017
The aim of this paper is to develop a virtual element method (VEM) for the vibration problem of thin plates on polygonal meshes. We consider a variational formulation relying only on the transverse displacement of the plate and propose an $H^2(\Omega ...
Mora, David, Rivera, Gonzalo, Velásquez, Iván   +2 more
core   +2 more sources

Treatments on Polypropylene Macro Synthetic Fibers for Improving Adhesion in Structural Concrete Reinforcement: A Systematic Review

Journal of Applied Polymer Science, EarlyView.
Surface functionalization of polypropylene macrofibers to enhance fiber‐matrix interfacial bonding. ABSTRACT Concrete is the most used higher compressive strength‐building material, albeit brittle to tensile, and flexural loads. Polypropylene (PP) synthetic polymeric macrofibres are commonly employed as reinforcement material to prevent this situation ...
Elena Saccani, Ylenia Ruberto, Daniel Milanese, Corrado Sciancalepore   +3 more
wiley   +1 more source

The Determinants of Customs Duties Evasion in Egypt

ECONOMICS
Following the Arab Spring in 2011, Egypt implemented policies to restrict imports to control foreign currency spending, as foreign currency reserves dwindled.
Barbary Mahmoud Magdy
doaj   +1 more source

Impact of H in H2O thermal scattering data on criticality calculation: uncertainty and adjustment

EPJ Nuclear Sciences & Technologies, 2022
In this paper, the impact of the thermal scattering data for H in H20 is estimated on criticality benchmarks, based on the variations of the CAB model parameters. The Total Monte Carlo method for uncertainty propagation is applied for 63 keff criticality
Rochman Dimitri, Vasiliev Alexander, Ferroukhi Hakim, Koning Arjan, Sublet Jean-Christophe   +4 more
doaj   +1 more source

The two-mass contribution to the three-loop pure singlet operator matrix element [PDF]

, 2017
We present the two-mass QCD contributions to the pure singlet operator matrix element at three loop order in x-space. These terms are relevant for calculating the structure function $F_2(x,Q^2)$ at $O(\alpha_s^3)$ as well as for the matching relations in
Ablinger, J., Blümlein, J., De Freitas, A., Schneider, C., Schönwald, K.   +4 more
core   +3 more sources

Historical Climatic Fluctuations and Geographic Isolation Shaped the Phylogeographic Patterns of a Mycoheterotrophic Species in Subtropical China

Biological Diversity, EarlyView.
Plastome and microsatellite data reveal strong population structure but low genetic diversity in the fully mycoheterotrophic herb Burmannia nepalensis across subtropical China. Multiple glacial refugia and recent population decline highlight the roles of geographic isolation, climatic history, and human disturbance in shaping the biodiversity of ...
Miaomiao Shi, Tong Zeng, Zhongtao Zhao, Xiaojuan Li, Xiangping Wang, Shiran Gu, Shijin Li, Tieyao Tu, Dianxiang Zhang   +8 more
wiley   +1 more source

Collection Dilemmas and Performance Measures of the Value-Added Tax in Germany and Poland

International Journal of Management and Economics, 2018
In the European Union Member States, value-added tax (VAT) is undergoing a continuous process of harmonization, which was initiated in the 1960s by the introduction of the First and Second Council Directives and which resulted in the implementation of ...
Hybka Małgorzata Magdalena
doaj   +1 more source

Evaluation of Different Detection and Identification Methods of Intact Tetrahydro‐Methyltestosterone Sulfate Metabolites in Doping Control

Drug Testing and Analysis, EarlyView.
The micro‐scale synthesis of the six out of eight possible tetrahydro‐methyltestosterone sulfate metabolites was performed, and the synthesized materials were used as analytical standards. The analysis of post‐administration sample extracts from methyltestosterone excretion studies against these standards provides further experimental proof for their ...
Yiannis S. Angelis, Olga Goula, Polyxeni Kiousi, Panagiotis Sakellariou   +3 more
wiley   +1 more source

Quantum correction for electron transfer rates. Comparison of polarizable versus nonpolarizable descriptions of solvent [PDF]

, 1993
The electron transfer rate constant is treated using the spin-boson Hamiltonian model. The spectral density is related to the experimentally accessible data on the dielectric dispersion of the solvent, using a dielectric continuum approximation.
Marcus, R. A., Song, Xueyu
core   +1 more source