Results 81 to 90 of about 5,929 (202)

Wage discrimination against foreign workers in Russia

open access: yesRussian Journal of Economics, 2017
We try to determine with the help of the Oaxaca–Blinder decomposition technique whether foreign workers are discriminated against in Russia. We use the Russian Ministry of Labor (Rostrud) data on migrants’ applications and the Russian Longitudinal ...
Elena Vakulenko, Roman Leukhin
doaj   +1 more source

Experimental investigation of a cascade cycle using R744+R23 as low temperature working fluid

open access: yes, 2011
The aim of this work is to test the performance of a cascade refrigeration cycle adopting carbon dioxide (R744) + trifluoromethane (R23) binary system at the Low Temperature Stage (LTS) and R404A at the High Temperature Stage (HTS) of the cycle.
Di Nicola G.   +4 more
core   +1 more source

Progetto e sviluppo di dispositivi ZigBee per un'infrastruttura domotica [PDF]

open access: yes, 2009
In questa tesi si descrivono tutti i livelli del protocollo ZigBee e il progetto di un nodo sensore per questo standard di rete, sviluppato sia nell'hardware, dalla scelta dei sensori fino alla realizzazione della scheda, che nel software, con la ...
DINI, DEVITT
core   +1 more source

Generalized Ramsey numbers for paths in 2-chromatic graphs

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1986
Chung and Liu have defined the d-chromatic Ramsey number as follows. Let 1≤d≤c and let t=(cd). Let 1,2,…,t be the ordered subsets of d colors chosen from c distinct colors. Let G1,G2,…,Gt be graphs. The d-chromatic Ramsey number denoted by rdc(G1,G2,…,Gt)
R. Meenakshi, P. S. Sundararaghavan
doaj   +1 more source

4-Methylanilinium trichloroacetate

open access: yesIUCrData, 2017
The asymmetric unit of the title molecular salt, C7H10N+·C2Cl3O2−, consists of two cations and two anions. In the crystal, N—H...O hydrogen bonds link the components into [100] chains incorporating R23(10) loops and weak π–π stacking [centroid-to ...
S. Suresh   +3 more
doaj   +1 more source

Analysis of a Cascade Refrigeration System (CRS) by Using Different Refrigerant Couples Based on the Exergetic Performance Coefficient (EPC) Criterion

open access: yes, 2014
A theoretical performance analysis based on the exergetic performance coefficient (EPC) criterion has been carried out for a cascade refrigeration system for different refrigerant couples. The EPC criterion is defined as the ratio of exergy output to the
KARAKURT, Asım Sinan, ÜST, Yasin
core   +1 more source

R23.jpg

open access: yes
This thesis is an effort to formalize and document some of the changes occuring in the Warwar Valley of Gongola State, Nigeria, West Africa. The documentation will comprise a photographic study over time accompanied by an ethnographic narrative ...
Schneider, Evan G.
core   +6 more sources

Az Észak-magyarországi régió munkaerő-piaci folyamatainak vizsgálata A

open access: yesCompetitio, 2014
A tanulmány az Észak-magyarországi régió pozícióját vizsgálja országos viszonylatban a főbb munkaerőpiaci indikátorok figyelembe vételével. Számításokat végeztem a régióban lezajló munkaerő-piaci folyamatok szemléltetésére.
Katalin Lipták
doaj   +1 more source

Experimental study on R404A/R23 cascade ultra-low temperature refrigeration system

open access: yes, 2019
Relying on the R404A/R23 cascade ultra-low temperature refrigeration test bench, and using the method of controlling single variable, the evaporation temperature and condensation temperature of the compressor compression ratio, exhaust gas temperature ...
Jinfeng, WANG, Jing, XIE, Han, LIU
core   +1 more source

MIKROENKAPSULASI Lactobacillus sp. DENGAN TEKNIK EMULSI DAN APLIKASINYA PADA DODOL SIRSAK [Microencapsulation of Lactobacillus sp. using Emulsion Technique and Its Application in Soursop Sweet Cakes]

open access: yesJurnal Teknologi dan Industri Pangan, 2015
Two probiotic strains Lactobacillus acidophilus 2B4 and L. rhamnosus R23 were microencapsulated by an emulsion technique using sodium alginate and vegetable oil. The present study aimed to enhance probiotic survival on their application in the production
Anis Usfah Prastu Jati   +2 more
doaj   +1 more source

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