Results 1 to 10 of about 25,538 (171)

On RRH Placement for Multi-User Distributed Massive MIMO Systems

open access: yesIEEE Access, 2018
In a distributed massive multiple-input multiple-output (DM-MIMO) system, a large number of antennas are distributed across multiple remote radio heads (RRHs) within the coverage area.
Arin Minasian   +3 more
doaj   +4 more sources

In silico characterisation and chromosomal localisation of human RRH (peropsin) – implications for opsin evolution [PDF]

open access: yesBMC Genomics, 2003
Background The vertebrate opsins are proteins which utilise a retinaldehyde chromophore in their photosensory or photoisomerase roles in the visual/irradiance detection cycle.
Foster Russell G   +2 more
doaj   +3 more sources

Comparative analysis of robotic vs. laparoscopic right hepatectomy: propensity score matching and machine learning analysis for outcome prediction [PDF]

open access: yesFrontiers in Surgery
BackgroundRobotic right hepatectomy (RRH) is increasingly utilized as a minimally invasive liver surgery approach, yet its comparative effectiveness against laparoscopic right hepatectomy (LRH) remains debated.
Alessandro D. Mazzotta   +23 more
doaj   +2 more sources

Residual ridge height as a potential risk factor for membrane perforation during lateral-window sinus elevation surgery: a systematic review and meta-analysis [PDF]

open access: yesBMC Oral Health
Purpose Perforation of the sinus membrane is a common complication during maxillary sinus lift surgery. This systematic review aimed to evaluate if the residual ridge height (RRH) is a risk factor for membrane perforations during the lateral-window sinus
Mingfu Ye   +5 more
doaj   +2 more sources

QoS-Aware Dynamic RRH Allocation in a Self-Optimized Cloud Radio Access Network With RRH Proximity Constraint

open access: yesIEEE Transactions on Network and Service Management, 2017
An inefficient utilization of network resources in a time-varying traffic environment often leads to load imbalances, high call-blocking events and degraded quality of service (QoS). This paper optimizes the QoS of a cloud radio access network (C-RAN) by investigating load balancing solutions.
Muhammad Khan
exaly   +2 more sources

In-Plane Mechanical Behavior Design of a Locally Rib-Reinforced Rotating Hexagonal Honeycomb [PDF]

open access: yesBiomimetics
This study develops a novel Locally Rib-Reinforced Rotational Hexagonal Honeycomb (LRRH) model. The objective is to systematically enhance the model’s mechanical performance and energy absorption efficiency through geometric morphology construction.
Jialiang Xie, Jinjin Huang, Xiaolin Deng
doaj   +2 more sources

Cooperative Optimization for OFDMA Resource Allocation in Multi-RRH Millimeter-Wave CRAN [PDF]

open access: yesIEEE Access, 2020
Cloud radio access networks (CRAN) has become an excellent network architecture in the fifth-generation wireless communication systems, which can highly increase the capacity and coverage compared with conventional networks.
Nan Li   +3 more
doaj   +2 more sources

Clinical comparative study of robot-assisted and traditional laparoscopic surgery in patients with cervical cancer: a retrospective cohort study [PDF]

open access: yesBMC Surgery
Background A new era in minimally invasive surgery has been ushered in by Leonardo’s robot surgical system, but the safety and effectiveness in cervical cancer is lake of evidence.
Lijuan Zhang   +4 more
doaj   +2 more sources

On Joint BBU/RRH Resource Allocation in Heterogeneous Cloud-RANs

open access: yesIEEE Internet of Things Journal, 2017
Cloud radio access network (Cloud-RAN) is a promising wireless network architecture that can satisfy the fast growing mobile data traffic and improve the performance of Internet of Things. In this paper, we propose an energy-efficient resource allocation scheme based on heterogeneous Cloud-RAN jointly considering the remote radio head (RRH) antenna ...
Shiwen Mao, Wuyang Zhou
exaly   +2 more sources

A Point Prevalence Survey of antibiotics use patterns at Tanga Regional Referral Hospital in Tanzania [PDF]

open access: yesAntimicrobial Stewardship & Healthcare Epidemiology
Objective: Antimicrobial resistance (AMR) is a major global health threat, driven in part by inappropriate antibiotic use. This study assessed the prevalence, patterns, and determinants of antibiotic prescription among inpatients at Tanga Regional ...
Aneth Wilbroad Mutatina   +7 more
doaj   +2 more sources

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