Search Results - "Hamza, K."

A review of GaN HEMT broadband power amplifiers by Husna Hamza, K., Nirmal, D.

“…The unique material properties of GaN, wide bandgap, high thermal conductivity, high breakdown voltage, high electron mobility and the device properties of GaN…”
Get full text

Linking plasma formation in grapes to microwave resonances of aqueous dimers by Khattak, Hamza K., Bianucci, Pablo, Slepkov, Aaron D.

“…The sparking of cut grape hemispheres in a household microwave oven has been a poorly explained Internet parlor trick for over two decades. By expanding this…”
Get full text

Direct force measurement of microscopic droplets pulled along soft surfaces by Khattak, Hamza K., Karpitschka, Stefan, Snoeijer, Jacco H., Dalnoki-Veress, Kari

“…When a droplet is placed on a soft surface, surface tension deforms the substrate, creating a capillary ridge. We study how the motion of the ridge dissipates…”
Get full text

Hybrid Ejector-Absorption Refrigeration Systems: A Review by Mukhtar, Hamza K., Ghani, Saud

“…Absorption Refrigeration Systems (ARS) are potential alternatives to direct expansion (DX) refrigeration systems. This review focused on the incorporation of…”
Get full text

Synthesis, spectroscopic, DFT calculations, biological activity, SAR, and molecular docking studies of novel bioactive pyridine derivatives by Anwer, Kurls E., Hamza, Zeinab K., Ramadan, Ramadan M.

“…Enaminonitrile pyridine derivative was used as a precursor for preparation of fourteen heterocyclic compounds using both conventional thermal and microwave…”
Get full text

Enhanced drain current and cut off frequency in AlGaN/GaN HEMT with BGaN back barrier by Husna Hamza, K., Nirmal, D., Augustine Fletcher, A.S., Ajayan, J., Natarajan, Ramkumar

“…•Enhancment of Drain current in GaN HEMT with BGaN Back barrier.•Improvement of linearity of GaN HEMTwith BGaN back barrier.•Higher cutoff frequency of GaN…”
Get full text

Improving the performance of a commercial absorption cooling system by using ejector: A theoretical study by Mukhtar, Hamza K., Ghani, Saud

“…Absorption cooling systems (ACS) have lower coefficients of performance (COP) compared to direct expansion (DX) cooling systems. Nevertheless, ACS offers a…”
Get full text

Preparation of ultra-thin elastomeric films by Khattak, Hamza K., Lu, Guanhua, Dutcher, Lauren A., Brook, Michael A., Dalnoki-Veress, Kari

“…When polydimethylsiloxane elastomers are produced, in the absence of great care, chains remain that are unbound to the cross-linked matrix. Due to the unbound…”
Get full text

The threshold elemental ratio of carbon and phosphorus of Daphnia magna and its connection to animal growth by Khattak, Hamza K., Prater, Clay, Wagner, Nicole D., Frost, Paul C.

“…The growth of animal consumers is affected by the balance of elements in their diet with the transition between limitation by one element to another known as…”
Get full text

Evaluating of cutting forces in thread machining by Akyildiz, Hamza K.

“…External thread cutting is a complex 3-D process in which the cutting conditions vary over the thread cutter profile. It is accepted as a mature technology…”
Get full text

Directed droplet motion along thin fibers by Khattak, Hamza K, Shanzeela, Aileen, Raphael, Elie, Dalnoki-Veress, Kari

“…When microscopic droplets are placed between fibers held at a fixed angle, the droplets spontaneously move toward the apex of the fibers. The speed of the…”
Get full text

Highly scaled graded channel GaN HEMT with peak drain current of 2.48 A/mm by Husna Hamza, K., Nirmal, D., Augustine Fletcher, A.S., Arivazhagan, L., Ajayan, J., Natarajan, Ramkumar

“…The dc and high frequency performances of Al composition Graded Channel AlGaN/GaN high electron mobility transistor on GaN substrate was investigated and…”
Get full text

Numerical investigation of the flow characteristics inside a supersonic vapor ejector by Mukhtar, Hamza K., Fadlalla, Ahmed, Ibrahim, Rania, Ghani, Saud

“…Integrating a vapor ejector with an air-cooled absorption cooling system (ACS) requires understanding how the ejector responds to varying condenser conditions…”
Get full text

Comparative Assessment of UAV and Sentinel-2 NDVI and GNDVI for Preliminary Diagnosis of Habitat Conditions in Burunge Wildlife Management Area, Tanzania by Mangewa, Lazaro J., Ndakidemi, Patrick A., Alward, Richard D., Kija, Hamza K., Bukombe, John K., Nasolwa, Emmanuel R., Munishi, Linus K.

“…Habitat condition is a vital ecological attribute in wildlife conservation and management in protected areas, including the Burunge wildlife management areas…”
Get full text

Medical research production in native languages: A descriptive analysis of PubMed database by Hamad, Abdullah Ashraf, Jaradat, Jaber H, Alsalhi, Hamza K, Alkhawaldeh, Ibraheem M

“…Language barriers in medicine can hinder effective communication, comprehension, and patient care. While English has emerged as the dominant language in global…”
Get full text

P133 Immunohistochemical expression of estrogen receptors after neoadjuvant chemotherapy in breast cancer by Hamida, K. Ben, Houcine, Y., Dhouibi, Y., Naija, L., Hamza, K., Ayadi, S., Dhiab, T. Ben, Jaidane, O., Driss, M.

Get full text

P054 Molecular characterization and the role of lymphocyte microenvironment in breast cancer by Hamida, K. Ben, Houcine, Y., Hamza, K., Kamoun, S., Ayadi, S., Dhiab, T. Ben, Driss, M.

Get full text

P037 EGFR overexpression is related to immunohistochemical biomarkers in breast cancer by Hamida, K. Ben, Houcine, Y., Hamza, K., Kamoun, S., Ayadi, S., Dhiab, T. Ben, Jaidane, O., Driss, M.

Get full text

Vibration Characteristics Analysis of Human- Robot Coupled System for Walking Posture of Elderly-Assistant Robot by Zhang, Xiaodong, Mu, Xiaoqi, Xu, Haipeng, Alhassan, Ahmad B., Kadry, Hamza K.

“…The ever-increasing need for nursing care due to the aging population necessitates the need for safe and efficient elder-assistant robots that can reduce the…”
Get full text

Design, Synthesis, and Antibacterial Activity of Spiropyrimidinone Derivatives Incorporated Azo Sulfonamide Chromophore for Polyester Printing Application by Ragab, Sherif S., Sweed, Ayman M. K., Hamza, Zeinab K., Shaban, Elkhabiry, El-Sayed, Ahmed A.

“…We designed and developed a novel series of bioactive disperse dyes by conjugation of spirocyclic 2-thiopyrimidine scaffold with aryl or sulfa drug moieties in…”
Get full text