Results 31 to 40 of about 20,117,051 (204)

The thickness of K1,n,n and K2,n,n

Ars Mathematica Contemporanea, 2018
The thickness of a graph G is the minimum number of planar subgraphs whose union is G. In this paper, we obtain the thickness of complete 3-partite graph K_1,n,n, K_2,n,n and complete 4-partite graph K_1,1,n,n.
Xia Guo, Yan Yang
openaire   +3 more sources

Carbonitriding reduction of TiO2 in the CH4-H2-N2 system: Reduction temperature effect and kinetics [PDF]

Journal of Mining and Metallurgy. Section B: Metallurgy
Understanding reaction kinetics can provide valuable information for the design and optimization of a reaction process. In this study, the reduction degree and carbonitriding ratio of TiO2 in the CH4-H2-N2 system were investigated to understand the ...
Zhang R., Fan G.-Q., Hou Y., You Y., Dang J.   +4 more
doaj   +1 more source

EFFECT OF RICE STRAW AND APPLICATIONS OF POTASSIUM SILICATE, POTASSIUM HUMATE AND SEAWEED EXTRACT ON GROWTH AND SOME MACRONUTRIENTS OF SWEET PEPPER PLANTS UNDER IRRIGATION DEFICIT [PDF]

Arab Universities Journal of Agricultural Sciences, 2018
growing seasons of 2013-2014 and 2014-2015, in a private farm at El-Salheya El-Gedida City, Ismailia Governorate, Egypt, to investigate the effect of rice straw (RS) as alternative to sandy soil (SS) and drenching applications of potassium humate (K2-HA)
Nesma Youssif, H. Osman, Y. Salama, Sanaa Zaghlool   +3 more
doaj   +1 more source

From Formica® to FormiCAN: One‐Pot Synthesis of Melamine‐based Covalent Adaptable Network Endowed With High Transition Temperature and Fast Stress Relaxation

Macromolecular Rapid Communications, Volume 46, Issue 17, September 5, 2025.
Melamine‐based resins are benchmark materials in the field of laminates and composites, and this beyond the world‐famous Formica® brand, but these thermosets are not reprocessable and hardly degradable. This study describes a melamine‐based CAN containing N,O‐acetal exchangeable functions, obtained via a one‐pot and solvent‐free microwave‐assisted ...
Sidonie Laviéville, Camille Bakkali‐Hassani, Vincent Ladmiral, Eric Leclerc   +3 more
wiley   +1 more source

A NEW SPECIES OF THE GENUS NEOCUNAXOIDES (Acari: Cunaxidae) IN EGYPT [PDF]

Journal of Plant Protection and Pathology, 2006
Neocunaxci cies fayoumi sp. n. (Cunaxidae) was considered to be new. Description of adult female and male were done. individuals of N. fayoumi sp. n., were found in debris under several fruit trees especially citrus trees at Fayoum Govemorate.
Reham Abo-Shnat, Amal Romeih,
doaj   +1 more source

Orthoamide, LXIX [1]. Beiträge zur Synthese N,N,N´,N´,N´´-peralkylierter Guanidine und N,N,N´,N´,N´´䞲,N´´-persubstituierter Guanidiniumsalze / Orthoamides, LXIX [1]. Contributions to the Synthesis of N, N, N´, N´, N´-peralkylated Guanidines and N, N, N´, N´, N´´, N´´-persubstituted Guanidinium Salts

Zeitschrift für Naturforschung B, 2010
N, N, N´, N´-Tetraalkyl-chloroformamidinium chlorides 6 are prepared from N, N, N´, N´-tetraalkylureas 5 and phosgene in acetonitrile. The iminium salts 6 react with primary and secondary amines in the presence of triethylamine to give N, N, N´, N´, N´´-pentasubstituted and N, N, N´, N´, N´´, N´´- hexasubstituted guanidinium salts 7 and 8, respectively,
Willi Kantlehner, Jochen Mezger, Ralf Kreß, Horst Hartmann, Thorsten Moschny, Ioannis Tiritiris, Boyan Iliev, Oliver Scherr, Georg Ziegler, Bahari Souley, Wolfgang Frey, Ivo C. Ivanov, Milen G. Bogdanov, Ulrich Jäger, Günther Dospil, Tillmann Viefhaus   +15 more
openaire   +1 more source

A Framework to Unify the Relationship Between Numerical Abundance, Biomass, and Environmental DNA

Environmental DNA, Volume 7, Issue 2, March/April 2025.
Whether eDNA correlates more strongly with numerical abundance or biomass remains an outstanding question. We resolve this issue by demonstrating, using frameworks developed from metabolic ecology, that eDNA data can be adjusted to simultaneously reflect both parameters.
Matthew C. Yates, Taylor M. Wilcox, Shannon Kay, Pedro Peres‐Neto, Daniel D. Heath   +4 more
wiley   +1 more source

Significance of land management practices under haskap orchards to mitigate the degradations of soil organic carbon stocks and soil health because of land use changes from forest and grassland

Soil Use and Management, Volume 41, Issue 1, January‐March 2025.
Abstract Managing the impact of land use change (LUC) in soil organic carbon (SOC) and soil health is imperative while climate change (CC) and food security are in concern. Land management practices in major land uses play a vital role in maintaining SOC concentrations and soil health.
Biplab Brahma, Andrew Hammermeister, Derek Lynch, Peter Smith, Arun Jyoti Nath   +4 more
wiley   +1 more source

Fenton process enhanced by metal sulfide for treating the actual evaporated mother liquid of gas field wastewater

Journal of Water Reuse and Desalination, 2023
Evaporated mother liquor of gas field wastewater (EML-GFW) is a form of wastewater generated by the triple-effect evaporation treatment of gas field wastewater containing complex pollutants.
Bing Yao, Ying Chen, Mengzhe Wang, Min Liu   +3 more
doaj   +1 more source

Effectiveness and safety of balloon pulmonary valvuloplasty in newborns and infants [PDF]

Българска кардиология, 2020
Balloon pulmonary valvuloplasty (BPVP) is the procedure of choice for the treatment of isolated pulmonary valve stenosis. Complications and failure of the procedure are more common in newborns and infants.
Kiparisiya Nenova, Anna Kaneva-Nencheva, Elisaveta Levunlieva, Lyubomir Dimitrov, Margarita Tzonzarova   +4 more
doaj   +3 more sources