Injury Prevention and Performance Optimization in Soldiers of the Army 101st Airborne/Air Assault Division

2011 ◽  
Author(s):  
Scott Lephart
Keyword(s):  
Injury Prevention ◽  
Performance Optimization ◽  
And Performance

Gender Differences in Static and Dynamic Postural Stability of Soldiers in the Army’s 101st Airborne Division (Air Assault)

2018 ◽  
Vol 27 (2) ◽  
pp. 126-131 ◽  
Author(s):  
Timothy C. Sell ◽  
Mita T. Lovalekar ◽  
Takashi Nagai ◽  
Michael D. Wirt ◽  
John P. Abt ◽  
...  
Keyword(s):  
Injury Prevention ◽  
Performance Optimization ◽  
Postural Stability ◽  
Stability Index ◽  
Healthy Female ◽  
Reaction Forces ◽  
And Performance ◽  
Dynamic Postural Stability ◽  
Female Soldiers ◽  
Gender Specific

Context: Postural stability is essential for injury prevention and performance. Differences between genders may affect training focus. Objective: To examine static and dynamic postural stability in male and female soldiers. Design: Descriptive laboratory study. Setting: Biomechanics laboratory. Participants: 25 healthy female soldiers (26.4 ± 5.3 y) and 25 healthy male soldiers (26.4 ± 4.9 y) matched on physical demand rating and years of service from the Army’s 101st Airborne Division (Air Assault). Interventions: Each person underwent static and dynamic postural stability testing. Main Outcome Measures: Standard deviation of the ground reaction forces during static postural stability and the dynamic stability index for dynamic postural stability. Results: Female soldiers had significantly better static postural stability than males but no differences were observed in dynamic postural stability. Conclusions: Postural stability is important for injury prevention, performance optimization, and tactical training. The differences observed in the current study may indicate the need for gender-specific training emphasis on postural stability.

Design and performance optimization of microchannel condensers for electric vehicles

2021 ◽  
Author(s):  
Ni Liu ◽  
Huan Li ◽  
Kang Li ◽  
Yidong Fang ◽  
Lin Su ◽  
...  
Keyword(s):  
Electric Vehicles ◽  
Performance Optimization ◽  
And Performance

scholarly journals SWIPT in mMIMO system with non-linear energy-harvesting terminals: protocol design and performance optimization

2019 ◽  
Vol 2019 (1) ◽  
Author(s):  
Kui Xu ◽  
Ming Zhang ◽  
Jie Liu ◽  
Nan Sha ◽  
Wei Xie ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Performance Optimization ◽  
Power Transmission ◽  
Base Station ◽  
Second Phase ◽  
Wireless Power ◽  
Half Duplex ◽  
Non Linear ◽  
Two Phases ◽  
And Performance

Abstract In this paper, we design the simultaneous wireless information and power transfer (SWIPT) protocol for massive multi-input multi-output (mMIMO) system with non-linear energy-harvesting (EH) terminals. In this system, the base station (BS) serves a set of uplink fixed half-duplex (HD) terminals with non-linear energy harvester. Considering the non-linearity of practical energy-harvesting circuits, we adopt the realistic non-linear EH model rather than the idealistic linear EH model. The proposed SWIPT protocol can be divided into two phases. The first phase is designed for terminals EH and downlink training. A beam domain energy beamforming method is employed for the wireless power transmission. In the second phase, the BS forms the two-layer receive beamformers for the reception of signals transmitted by terminals. In order to improve the spectral efficiency (SE) of the system, the BS transmit power- and time-switching ratios are optimized. Simulation results show the superiority of the proposed beam-domain SWIPT protocol on SE performance compared with the conventional mMIMO SWIPT protocols.

Morphology modulation and performance optimization of nanopetal-based Ag-modified Bi2O2CO3 as an inactivating photocatalytic material

2021 ◽  
pp. 111256
Author(s):  
Fengguang Wang ◽  
Feng Zhou ◽  
Su Zhan ◽  
Qiuchen He ◽  
Yupeng Song ◽  
...  
Keyword(s):  
Performance Optimization ◽  
And Performance ◽  
Photocatalytic Material

scholarly journals A novel design and performance optimization methodology for hydraulic Cross-Flow turbines using successive numerical simulations

2021 ◽  
Vol 169 ◽  
pp. 1402-1421
Author(s):  
Goodarz Mehr ◽  
Mohammad Durali ◽  
Mohammad Hadi Khakrand ◽  
Hadi Hoghooghi
Keyword(s):  
Numerical Simulations ◽  
Performance Optimization ◽  
Cross Flow ◽  
Optimization Methodology ◽  
And Performance ◽  
Novel Design

scholarly journals Deep learning-based computation offloading with energy and performance optimization

2020 ◽  
Vol 2020 (1) ◽  
Author(s):  
Yongsheng Gong ◽  
Congmin Lv ◽  
Suzhi Cao ◽  
Lei Yan ◽  
Houpeng Wang
Keyword(s):  
Deep Learning ◽  
Performance Optimization ◽  
Computation Offloading ◽  
And Performance

scholarly journals In-Orbit Operational Parameter Calculation and Performance Optimization in KOMPSAT-6 Synthetic Aperture Radar

2021 ◽  
Vol 13 (12) ◽  
pp. 2342
Author(s):  
Jin-Bong Sung ◽  
Sung-Yong Hong
Keyword(s):  
Synthetic Aperture Radar ◽  
Performance Optimization ◽  
Pulse Repetition Frequency ◽  
Optimization Method ◽  
Synthetic Aperture ◽  
Operational Parameters ◽  
Operational Parameter ◽  
Design Methodologies ◽  
And Performance ◽  
Aperture Radar

A new method to design in-orbit synthetic aperture radar operational parameters has been implemented for the Korean Multi-purpose Satellite 6 mission. The implemented method optimizes the pulse repetition frequency when a satellite altitude changes from its nominal one, so it has the advantage that the synthetic aperture radar performances can satisfy the requirements for the in-orbit operation. Other commanding parameters have been designed to conduct trade-off between those parameters. This paper presents the new optimization method to maintain the synthetic aperture radar performances even in the case of an altitude variation. Design methodologies to determine operational parameters, respectively, at nominal altitude and in orbit are presented. In addition, numerical simulation is presented to validate the proposed optimization and the design methodologies.

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