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Introduction For the jet refrigeration system, it was found that the constant pressure mixing ejector is more widely used than the constant area ejector, because it has a better performance than that of constant area mixing ejector.[1]The constant pressure model was firstly developed by Eames,[2] and confirmed by El-Dessouky et al. in their study. [3] El-Dessouky et al. also created another easy semi-empirical model to predict the entrainment ratio with experimental data from experiments [2,4,5-10]on steam ejectors.
[3] H.El-Dessouky, H.Ettouney, I.Alatiqi, G.
Al-Nuwaibit: Evaluation of steam jet ejector.

It is notable, when comparing compounds 3a to 3c or 3d, that the фF of 3c and 3d, which have a chlorine(–Cl) or electron-acceptor cyano (–CN) substituent on the naphthalimide molecule, are higher than 3a, which has an electron-donating substituent on the naphthalimide molecule. 2.3 The EL properties and brightness characteristics The electroluminescent properties and brightness characteristics of 4-Benzofuranyl-1,8- naphthalimide compounds were mensurated through a doped electroluminescent device which contains 1% 1,8-naphthalimides and 99% CBP (4,4'-N,N'-dicarbazole-biphenyl).
Table 2 The EL Characteristic of 4-Benzofunan-1,8-Naphthalimides Entry Compd EL (nm) Onset Volt (V) Brightness (Max) (cd/m2) 1 3a 499 8.1 2600 2 3b 505 9.6 3700 3 3c 501 7.9 1050 4 3d 500 9.3 790 Fig. 2.
The Current Density-Voltage and Brightness Efficiency Characteristics of 3b Characteristics of 3b The EL properties were tested using compounds 3 as light-emitting layer at room temperature and atmospheric environment, the structure of OLED devices was indium tinoxide(ITO)/NPB/CBP+ 1%NA/BCP/Alq/LiF/Al.
References [1] Qian X, Tang J, Zhang J, et al Synthesis of Furonaphthalimides with Potential Photosensitizing Biological Activity [J].

El-Gassy, Scand.
El-Geassy, K.
El-Shereafy, A.
El-Tawil, Ironmaking and Steelmaking, 40 (2013), 534-544 [6] K.S.
Al-Ghonamy, Advanced Materials Research, 1096 (2015), 524-530 [7] K.

El Mir and S.A.M.
El Mir, V.
El Mir, H.
El Mir, V.
Al-Saie, M.

Process parameters for the Al 2219 deposits.
Elong (%) T62 Typ A1 A6 A6m 40 35 35 30 Elongation, % El 15 on i n, % 30 o 25 gat 20 Stress, MPa 25 Stress, MPa 20 15 10 10 5 5 0 0 Figure 2.
Tensile properties of heat treated Al 2219 compared with Al 2219 wrought products Al 2219 deposits compared with Al 2219 in annealed (O) and naturally aged (T4) tempers [4]. wrought products in the T62 condition [4]. 0 50 100 150 200 250 300 350 400 450 Avg.
El (%) AD - L AD - T T6 - L T6 - T C A1 parameters 45 45 0 50 100 150 200 250 300 350 400 450 Avg.
boundaries in as-deposited Al 2219.

Veaamini et al [2] discussed cutting triangular pocket and the way of selecting its cutting tools.
Kai Tang et al [3] presented an algorithm for improving the pocket machining.
El Midany, A.
El Hendawy: Optimal CNC tool path generation for zigzag pocket milling, 7th International Conference on Production Engineering, Design and Control Vol.
El Midany, A.

Hot-rolled TRIP steels based on DTUA demonstrated better mechanical properties, especially for C-Mn-Al-Si TRIP steel.
Using Thermo-Calc, the A3 temperature is calculated to be 1136 K for the C-Mn-Si steel, and be 1247K for the C-Mn-Al-Si steel.
The Ar3 temperature at 5K/s was 1033K for the C-Mn-Si steel and 1053K for the C-Mn-Al-Si steel, measured by thermal dilatometer.
Fig. 4 Microstructures of C-Mn-Si steel (a) and C-Mn-Al-Si steel (b) deformed at 1073K at 1 s -1 to strain of 0.69 and C-Mn-Al-Si steel (c) held at 1073K for 10min, and quenched by water.
Steel Process % RA [Vol.% ] % M [Vol.% ] YS [MPa] UTS [MPa] YS/UT S EL [%] UTS×EL [Mpa·%] C-Mn -Si Based on STUA 8.8 6.2 480 790 0.61 23 18170 Based on DTUA 8.2 6.4 560 890 0.63 28 24920 C-Mn- Al-Si Based on STUA 4.7 8.3 450 670 0.67 26 17420 Based on DTUA 8.1 7.6 460 780 0.59 34 26520 %RA-volume percent of retained austenite, %M- volume percent of martensite Summary By dynamic transformation of undercooled austenite (DTUA), the kinetics of ferrite formation was fast and the volume fraction of transformed ferrite can be controlled by the applied strain.

Recently, inorganic nanoparticles with various morphology i.e. layered structures of magnesium oxide nanocrystal, Mg-Al layered double hydroxides etc. have been demonstrated as excellent fluoride adsorbents in aqueous by the formation of inner-sphere complexation and morphology dependent performance [4-6].
El Rhilassi, H.
El Boujaady, M.
El Hamri and A.

Tsukatani et al proposed a versatile current mode biquad filter using four multiple current output OTAs and two grounded capacitors [18].
Wu and El-Masery presented OTA based bandpass ladder filter [10].
Wu and El-Masery,“Current-mode Bandpass Ladder Filter Using OTAs”, Int.
Wu and El-Masery, “Universal Voltage and Current-mode OTAs Based Biquads,” Int.

El-Shazly1,3,b, M.
El-Kady1,4,c, and A.
Hammad1,5,d 1Chemical and Petrochemicals Engineering Department, Egypt-Japan University of Science and Technology (E-JUST), New Borg El-Arab City, Alexandria, Egypt 2Mechanical Engineering Department, Faculty of Energy Engineering, Aswan University, Aswan, Egypt 3Chemical Engineering Department, Faculty of Engineering, Alexandria University, Alexandria, Egypt 4Fabrication Technology Department, Advanced Technology and New Materials and Research Institute (ATNMRI), City of Scientific Research and Technological Applications (SRTA City), Alexandria, Egypt 5Chemical Engineering Department, Faculty of Engineering, Port Said University, Port Said, Egypt.
Singh et al. fabricated robust graphene reinforced composite coatings on copper by EPD with a hydrophobic characteristic.