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Abdelhamid, I. A., M. H. Mohamed, A. M. Abdelmoniem, and S. A. S. Ghozlan, "DBU-Catalyzed, facile and efficient method for synthesis of spirocyclic 2-oxindole derivatives with incorporated 6-amino-4H-pyridazines and fused derivatives via [3+ 3] atom combination", Tetrahedron, vol. 65, issue 48: Elsevier, pp. 10069-10073, 2009. Abstract
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Abdelhamid, I. A., M. H. Mohamed, A. M. Abdelmoniem, and S. A. S. Ghozlan, "DBU-Catalyzed, facile and efficient method for synthesis of spirocyclic 2-oxindole derivatives with incorporated 6-amino-4H-pyridazines and fused derivatives via [3+3] atom combination", Tetrahedron, vol. 65, issue 48, pp. 10069 - 10073, 2009. AbstractWebsite
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Abdelhamid, I. A., M. H. Mohamed, A. M. Abdelmoniem, and S. A. S. Ghozlan, "DBU-Catalyzed, facile and efficient method for synthesis of spirocyclic 2-oxindole derivatives with incorporated 6-amino-4H-pyridazines and fused derivatives via [3+3] atom combination", Tetrahedron, vol. 65, issue 48, pp. 10069 - 10073, 2009. AbstractWebsite
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Abdelhamid, I. A., M. H. Mohamed, A. M. Abdelmoniem, and S. A. S. Ghozlan, "DBU-Catalyzed, facile and efficient method for synthesis of spirocyclic 2-oxindole derivatives with incorporated 6-amino-4H-pyridazines and fused derivatives via [3+3] atom combination", Tetrahedron, vol. 65, issue 48, pp. 10069 - 10073, 2009///. Abstract

3-Cyanomethylidene oxindole derivatives were prepared in excellent yields utilizing DBU-promoted Knoevenagel condensation of isatin derivatives with active methylene reagents. The isolated products were then reacted with azaenamines via a DBU-promoted Michael addition to yield spirocyclic 2-oxindole derivatives with incorporated 6-amino-4H-pyridazines and their fused derivatives. © 2009 Elsevier Ltd. All rights reserved.

El-kader, A. F. H., W. H. Osman, and R. S. Hafez, "DC conduction mechanism and dielectric properties of poly (methyl methacrylate)/ poly (vinyl acetate) blends doped and undoped with malachite green.", Physica B: Condensed Matter, vol. 408, pp. 140-150 , 2013. Abstract

Cast thin films of Poly (methyl methacrylate)/Poly (vinyl acetate) blends of different concentrations undoped and doped with malachite green have been prepared and subjected to both dc electrical conduction and dielectric spectroscopy measurements. The analysis of dc electrical conduction data showed that the space charge limited current mechanism has been dominant for Poly (vinyl acetate) while Schottky–Richardson conduction mechanism prevailed for the Poly (methyl methacrylate) and blended samples. The values of field lowering constant β and the thermal activation energy ΔE involved in the dc conduction were reported, which provide another support for the suggested Schottky–Richardson mechanism. The increase in current for the blend sample doped with malachite green has been attributed to the formation of charge transfer complexes inside the polyblend matrix. The dielectric constant as a function of temperature for all samples have been calculated which are affected by the composition ratio and the addition of dye. The relaxation peak that appeared in the dielectric loss curve at 347 K for the doped blend sample is related to local dipoles that are present in the dye material. The obtained relaxation process spectra present in the investigated samples were analyzed with the well-known model of Havriliak–Negami.

Abd El-kader, M. F. H., and H. S. Ragab, "DC conductivity and dielectric properties of maize starch/methylcellulose blend films", Ionics, vol. 19, no. 2: Springer-Verlag, pp. 361–369, 2013. Abstract
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Nasr, G. M., A. A. S. Haleem, A. Klingner, A. M. Alnozahy, and M. H. Mourad, "The DC Electrical Properties of Polyvinyl Alcohol/ Multi-Walled Carbon Nanotube Composites", Journal of Multidisciplinary Engineering Science and Technology (JMEST) , vol. 2, issue 5, pp. 884-889, 2015.
Sayed, E. G. O., A. S. Amin, and Y. M. Issa, "DC Polarographic Determination of Ampicillin in Pharmaceutical Dosage Forms", Analytical Letters, vol. 27, pp. 2515–2521, 1994. Abstract
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Habib, S. E. - D. E. - S., DC Theory of Switching in MI Tunnel-np Silicon Device, : c1978., 1978. Abstract

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Rahmonov, I. R., Y. M. Shukrinov, and R. Dawood, "DC-SQUIDs with topologically trivial and nontrivial barriers: a comparative analysis", HTS Modelling 2016, Bologna, Italy, 16 June, 2016.
Khalil, H., A. Atiya, and S. Shaheen, "DCT of spatially adaptive subsampled interframes for image sequence coding", Image Processing, IEEE International Conference, 1996. Abstract
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Wahby, M. A., K. Mostafa, and A. M. Darwish, "DCT-based MPEG-2 programmable coprocessor", Electronic Imaging 2002: International Society for Optics and Photonics, pp. 14–20, 2001. Abstract
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Wahby, M. A., K. Mostafa, and A. M. Darwish, "DCT-based MPEG-2 programmable coprocessor", Electronic Imaging 2002: International Society for Optics and Photonics, pp. 14–20, 2001. Abstract
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Wahby, M. A., K. Mostafa, and A. M. Darwish, "DCT-based MPEG-2 programmable coprocessor", Electronic Imaging 2002: International Society for Optics and Photonics, pp. 14–20, 2001. Abstract
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Wahby, M. A., K. Mostafa, and A. M. Darwish, "DCT-based MPEG-2 programmable coprocessor", Electronic Imaging 2002: International Society for Optics and Photonics, pp. 14-20, 2001. Abstract
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Wahby, M. A., K. Mostafa, and A. M. Darwish, "DCT-based MPEG-2 programmable coprocessor", Media Processors 2002, vol. 4674: International Society for Optics and Photonics, pp. 14–20, 2001. Abstract
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Wahby, M. A., K. MOSTAFA, and A. M. Darwish, "DCT-based MPEG-2 programmable coprocessor", PROCEEDINGS-SPIE THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING, vol. 4674: International Society for Optical Engineering; 1999, pp. 14–20, 2002. Abstract
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Wahby, M. A., K. MOSTAFA, and A. M. Darwish, "DCT-based MPEG-2 programmable coprocessor [4674-03]", PROCEEDINGS-SPIE THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING: International Society for Optical Engineering; 1999, pp. 14–20, 2002. Abstract
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Wahby, M. A., K. MOSTAFA, and A. M. Darwish, "DCT-based MPEG-2 programmable coprocessor [4674-03]", PROCEEDINGS-SPIE THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING: International Society for Optical Engineering; 1999, pp. 14–20, 2002. Abstract
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Wahby, M. A., K. MOSTAFA, and A. M. Darwish, "DCT-based MPEG-2 programmable coprocessor [4674-03]", PROCEEDINGS-SPIE THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING: International Society for Optical Engineering; 1999, pp. 14-20, 2002. Abstract
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mazen, "dd", ijiijij, 2010.
Beard, J., and A. R. H. R. Collaboration, "DDT and human health", Science of the total environment, vol. 355, issue 1-3: Elsevier, pp. 78-89, 2006. Abstract
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HAK, M. G. A. D. E. L., "DE LA CARICATURE EGYPTIENNE", RIDICULOSA, pp. 431-460, 2013.