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Adaptive Power Control Aware Depth Routing in Underwater Sensor Networks

Computers, Materials & Continua 2021年第10期69卷 1301-1322页

作者： ghufran ahmed Saiful Islam Ihsan Ali Isra Adil Hayder Abdelmuttlib Ibrahim Abdalla ahmed Muhammad Talha Sultan S.Alshamrani Ag Asri Ag Ibrahim Department of Computer Science FAST National University of Computer and Emerging Sciences(NUCES)KarachiPakistan Dr.A.Q.Khan Institute of Computer Sciences and Information Technology KahutaPakistan Faculty of Computer Science and Information Technology University of MalayaKuala Lumpur50603Malaysia Department of Computer Science COMSATS University IslamabadIslamabadPakistan Deanship of Scientific Research King Saud UniversityRiyadhSaudi Arabia Department of Information Technology College of Computer and Information TechnologyTaif UniversityTaif21944Saudi Arabia Faculty of Computing and Informatics Universiti Malaysia SabahKota KinabaluSabahMalaysia

Underwater acoustic sensor network(UASN)refers to a procedure that promotes a broad spectrum of aquatic *** can be practically applied in seismic checking,ocean mine identification,resource exploration,pollution checking,and disaster *** confronts many difficulties and issues,such as low bandwidth,node movements,propagation delay,3D arrangement,energy limitation,and high-cost production and arrangement costs caused by antagonistic underwater *** wireless sensor networks(UWSNs)are considered a major issue being encountered in energy management because of the limited battery power of their ***,the harsh underwater environment requires vendors to design and deploy energy-hungry devices to fulfil the communication requirements and maintain an acceptable quality of ***,increased transmission power levels result in higher channel interference,thereby increasing packet *** the facts mentioned above,this research presents a controlled transmission power-based sparsity-aware energy-efficient clustering in *** contributions of this technique is ***,it uses the adaptive power control mechanism to utilize the sensor nodes’battery and reduce channel interference ***,thresholds are defined to ensure successful ***,clustering can be implemented in dense areas to decrease the repetitive transmission that ultimately affects the energy consumption of nodes and interference ***,mobile sinks are deployed to gather information locally to achieve the previously mentioned *** suggested protocol is meticulously examined through extensive simulations and is validated through comparison with other advanced UWSN *** show that the suggested protocol outperforms other procedures in terms of network lifetime and packet delivery ratio.

关键词： UWSNs UASNs QoS

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Barriers to nurse-patient communication in primary healthcare centers in Bahrain:Patient perspective

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International Journal of Nursing Sciences 2022年第2期9卷 230-235,I0008页

作者： Nada Mahmood Abdulla Rula Jamal Naqi ghufran ahmed Jassim School of Medicine Royal College of Surgeons in IrelandMedical University of BahrainBahrain Associate Professor and Head of Department of Family Medicine Royal College of Surgeons in Ireland e Medical University of BahrainBahrain

Objectives:Effective and efficient communication is a core element in healthcare systems,especially between healthcare providers and *** study aimed to identify communication barriers be-tween nurses and patients in primary healthcare centers in ***:This is a cross-sectional study conducted across primary healthcare centers in *** hundred and two patients were recruited using convenience sampling.A self-administered question-naire comprising 29 items on communication barriers was ***:A total of 402 patients consented to *** majority of participants reported the following statements had large effects on communication:“shortage in the number of nurses compared to the large number of patients”(254/401,63.3%),“lack of desire of nurse to communicate with patients”(246/402,61.2%),and“negative attitude of the nurse toward the patient”(238/401,59.4%).Further,“difference in language between nurses and patients,”“lack of self-confidence by nurses,”and“nurses overwhelmed by work”were ranked as top three statements with a significant influence on commu-nication between nurses and ***:Communication between healthcare providers and patients is pivotal for an optimal healthcare *** on the findings of this study and the literature,we recommend formal training of health care workers in improving communication skills and including this not only in medical cur-riculum but also in the form of continuing medical education(CMEs)1.

关键词： Communication barriers Delivery of health care Health personnel Primary health care Surveys and questionnaires

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The E_iso-L_iso Plane for Gamma-Ray Bursts

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Journal of Applied Mathematics and Physics 2022年第4期10卷 1083-1088页

作者： Walid J. Azzam Fatima S. Jaber ghufran M. ahmed Department of Physics College of Science University of Bahrain Sakhir Bahrain

Gamma-ray bursts (GRBs) are the most intense and powerful explosions in the universe. Based on their observed duration, they are traditionally divided into long bursts whose observed duration equals or exceeds 2 s, and short bursts whose observed duration is less than 2 s. Several GRB energy and luminosity correlations have been discovered for long gamma-ray bursts. Two important correlations are the Amati relation and the Yonetoku relation. The Amati relation is a correlation between the intrinsic peak energy, Ep,i, obtained from the νFν spectrum and the equivalent isotropic energy, Eiso, while the Yonetoku relation is a correlation between Ep,i and the peak isotropic luminosity, Liso. In this paper, we use a recent data sample that includes both long and short GRBs to compare these two correlations for the two groups of bursts. We also compare the Eiso-Liso plane for these two types of bursts. Our results indicate that both long and short bursts adhere to these two correlations but with different normalizations. We also find that the Eiso-Liso plane is similar for both types of GRBs but is shifted to lower values of Eiso for short GRBs.

关键词： Gamma-Ray Bursts Peak Energy Correlations Energy Indicators Luminosity Indicators

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