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| 1 | Influence of temperature on the properties of one-dimensional piezoelectric phononic crystals显示文摘The current study investigates the influence of temperature on a one-dimensional piezoelectric phononic crystal using tunable resonant frequencies. Analytical and numerical examples are introduced to emphasize the influence of temperature on the piezoelectric phononic crystals. It was observed that the transmission spectrum of a one-dimensional phononic crystal containing a piezoelectric material(0.7 PMN-0.3 PT) can be changed drastically by an increase in temperature.The resonant peak can be shifted toward high or low frequencies by an increase or decrease in temperature, respectively.Therefore, we deduced that temperature can exhibit a large tuning in the phononic band gaps and in the local resonant frequencies depending on the presence of a piezoelectric material. Such result can enhance the harvesting energy from piezoelectric materials, especially those that are confined in a phononic crystal. | Ahmed Nagaty Ahmed Mehaney Arafa H Aly | 2018 | Chinese Physics B2018，27，9： | 2 |
| 2 | Prophylactic role of curcumin in dextran sulfate sodium(DSS)-induced ulcerative colitis murine model 显示文摘 | Arafa H Hemeida R Bahrawy A | 2009 | Food Chem Toxicol2009，47，6： | 1 |
| 3 | Low band gap frequencies and multiplexing properties in 1D and 2D mass spring structures显示文摘This study reports on the propagation of elastic waves in 1D and 2D mass spring structures.An analytical and computation model is presented for the 1D and 2D mass spring systems with different examples.An enhancement in the band gap values was obtained by modeling the structures to obtain low frequency band gaps at small dimensions.Additionally,the evolution of the band gap as a function of mass value is discussed.Special attention is devoted to the local resonance property in frequency ranges within the gaps in the band structure for the corresponding infinite periodic lattice in the 1D and 2D mass spring system.A linear defect formed of a row of specific masses produces an elastic waveguide that transmits at the narrow pass band frequency.The frequency of the waveguides can be selected by adjusting the mass and stiffness coefficients of the materials constituting the waveguide.Moreover,we pay more attention to analyze the wave multiplexer and DE-multiplexer in the 2D mass spring system.We show that two of these tunable waveguides with alternating materials can be employed to filter and separate specific frequencies from a broad band input signal.The presented simulation data is validated through comparison with the published research,and can be extended in the development of resonators and MEMS verification. | Arafa H Aly Ahmed Mehaney | 2016 | Chinese Physics B2016，25，11： | 1 |
| 4 | Abdominal fat pad reduction in broilers with thyroactive iodinated casein 显示文摘 | Wilson H R Boone M A Arafa A S | 1983 | Poult Sci1983，62，： | 1 |
| 5 | Identification and modeling of some electrohydraulic servo valve non-linearities 显示文摘 | Arafa H A Rizk M | 1987 | Journal of Mechanical Engineering Science1987，201，2： | 1 |
| 6 | Temperature and humidity consideration for calcu-lating airborne 222Rn using activated charcoal canisters显示文摘 | E1 Samman H Ucegyptedu Arafa W | 2002 | Health Physics2002，83，1： | 1 |
| 7 | Hesperidin attenuates benzo[alpha]pyrene-induced testicular toxicity in rats via regulation of oxidant/antioxidant balance显示文摘 | ARAFA H M ALY H A ABD-ELLAH MF | | 0，，06： | 1 |
| 8 | Taurine attenuates hypertension and renal dysfunction induced by cyclosporine A in rat显示文摘 | Hagar H H Etter E Arafa M | 2006 | Clin Experim Pharmaco Physiol2006，33，3： | 1 |
| 9 | Dahab stream sedi-ments,southeastern Sinai,Egypt:a potential source of gold,magne-tite and zircon显示文摘 | Surour A A El-Kammar A A Arafa E H | 2003 | Journal of Geochemical Exploration2003，77，： | 1 |
| 10 | Immunomodulatory effects of L-carnitine and q10 in mouse spleen exposed to low-frequency high-intensity magnetic field显示文摘 | ARAFA H M ABD-ALLAH A R EL-MAHDY M A | 2003 | Toxicology2003，187，： | 1 |
| 11 | Susceptibility of various poultry species to dietary aflatoxin 显示文摘 | Arafa A S Bloomer R J Wilson H R et ol | 1981 | Brit Pouh Sci1981，22，5： | 1 |
| 12 | A self-tuning resonator for vibration energy harvesting显示文摘 | ABOULFOTOH N A ARAFA M H MEGAHED S M | 2013 | Sensors and Actuators:A2013，201，5： | 1 |
| 13 | Curcumin attenuates diet-induced hypercholesterolemia in rats显示文摘 | Arafa H M | 2005 | Medical Science Monitor2005，11，7： | 1 |
| 14 | Evaluation of spur gear mesh compliance using the finite element method显示文摘 | Arafa M H Megahed M M | | 0，，06： | 1 |
| 15 | Taurine attenuates hypertension and renal dysfunction induced by cyclosporine A in rat显示文摘 | Hagar H H EI Etter E Arafa M | 2006 | Clinical and Experimental Pharmacology and Physiology2006，33，3： | 1 |
| 16 | Intraaortic Balloon Pump in Open Heart Operations: 10-Year Follow-up With Risk Analysis 1 1 This article has been selected for the open discussion forum on the STS Web site: http://gffzz06206328a72143f9hvn6fffpxb99v6pnu.ffgz.tsg.suse.edu.cn/annals显示文摘 | Osama E Arafa Thore H Pedersen Jan L Svennevig Erik Fosse Odd R Geiran | 1998 | The Annals of Thoracic Surgery1998，，3： | 1 |
| 17 | OSU-CG5, a novel energy restriction mimetic agent, targets human colorectal cancer cells in vitro显示文摘 | EI-shaimaa A ARAFA | 2014 | Acta Pharmacologica Sinica2014，35，3： | 1 |
| 18 | Dahab stream sediments, southeastern Sinai, Egypt: a potential source of gold, magnetite and zircon 显示文摘 | Surour A A EI-Kammar A A Arafa E H | 2003 | Journal of Geochemical Exploration2003，77，1： | 1 |
| 19 | Ophicarbonates:calichified serpentinites from Gebel Mohagara,Wadi Ghadir area,eastern desert,Egypt显示文摘 | Surour A A Arafa E H | 1997 | Journal of African Earth Sciences1997，24，3： | 1 |
| 20 | C-gears: Geometry and Machining 显示文摘 | Arafa H A | 2005 | Proceedings of the Institution of Mechanical Engineers Part C: Journal of Mechanical Engi- neering Science2005，219，7： | 1 |
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