scholarly journals Interim Review of the Energy Efficient Engine (E3) Program

1982 ◽  
Author(s):  
W. B. Gardner ◽  
W. Hannah ◽  
D. E. Gray
Keyword(s):  
Energy Efficient ◽  
Performance Status ◽  
Performance Potential ◽  
The Status ◽  
Technology Programs ◽  
Whitney Aircraft

The status of the NASA sponsored Energy Efficient Engine Program, being conducted by Pratt & Whitney Aircraft, is reviewed. The current performance status is discussed; and the results of three technology programs, the shroudless fan, the segmented combustor and the mixer are reviewed. A projection is presented of the performance potential of the Energy Efficient Engine technology.

scholarly journals Assessment of the Performance Status of a Wharf

Pomorstvo ◽  
2018 ◽  
Vol 31 (1) ◽  
pp. 245-257
Author(s):  
Pereowei Garrick Ombor ◽  
Thaddeus C. Nwaoha
Keyword(s):  
Fuzzy Logic ◽  
Statistical Data ◽  
Performance Status ◽  
Rule Base ◽  
Subjective Judgement ◽  
The Status ◽  
Base Method ◽  
Logic Rule ◽  
Good Agreement

This paper suggests Fuzzy-logic-rule base method to assess the performance status of a wharf in order to classify it. The method proposed is predicated upon its ability to analyse processes and operations based on subjective judgement with little or no statistical data available. The study also shows that fuzzy-logic rule base is a veritable tool to qualitatively and quantitatively assess the status of a wharf offering ferry service. Using the model developed in this study, the performance status of Yenagoa wharf has been determined to be orange, having a (WPS) overall of 4.8. The status of the wharf has been in good agreement with the perception of stakeholders that the Yenagoa wharf needs restructuring to curb the frequent crisis occurring among stakeholders. The model also indicated those areas of the wharf’s operations needing attention. The study indicates that even though major components that determine the quality and profitability of the wharf’s ferry service are high in value, the overall status of the wharf may not be necessarily high. As such, the study method can be used to control the growing ill-feeling between boat operators and passengers while harmonizing all stakeholders (operators, passengers, and regulators etc) to work together to improve the status of the wharf.

The Energy Efficient Engine (E3): Advancing the State of the Art

1980 ◽  
Author(s):  
W. B. Gardner ◽  
D. E. Gray
Keyword(s):  
System Design ◽  
Energy Efficient ◽  
State Of The Art ◽  
The State ◽  
Propulsion System ◽  
Component Technology ◽  
The Status

The NASA sponsored E3 Program, being conducted by Pratt & Witney Aircraft, is described, including program objectives and goals. The evolution of the Flight Propulsion System design and the related work of the aircraft manufacturers is discussed. The status of the component technology substantiation program is summarized.

Learning to Infer the Status of Heavy-Duty Sensors for Energy-Efficient Context-Sensing

2012 ◽  
Vol 3 (2) ◽  
pp. 1-23 ◽  
Author(s):  
Xueying Li ◽  
Huanhuan Cao ◽  
Enhong Chen ◽  
Jilei Tian
Keyword(s):  
Energy Efficient ◽  
Heavy Duty ◽  
The Status

scholarly journals Control and regulation systems of energy networks in buildings

2018 ◽  
Vol 168 ◽  
pp. 06005
Author(s):  
Zuzana Kolková ◽  
Peter Hrabovský ◽  
Jozef Matušov ◽  
Martina Antošová ◽  
Michal Holubčík
Keyword(s):  
Control Systems ◽  
Energy Efficient ◽  
Accurate Information ◽  
Outdoor Temperature ◽  
Energy Networks ◽  
Intelligent Buildings ◽  
The Status ◽  
Reduce Energy Consumption ◽  
And Control

Measurement, regulation and control systems offer direct savings and reduce energy consumption, regulating heating, cooling, ventilation or lighting in the intelligent buildings. They provide quick and accurate information on the status of regulated systems or possible malfunction. Systems can use the special meteorological stations to get information about wind velocity and direction, outdoor temperature, intensity and direction of sunlight. They respond flexibly to changes in external parameters. Intelligent buildings combine architecture and aesthetics of the construction, safety, comfort and quality of the living. These buildings are productive, energy efficient and environmentally acceptable. Intelligent buildings combine internal and external intelligence building, intelligence used materials and constructions. The most important aspect is the cooperation of people with those systems. Intelligent buildings should be permanent, healthy, technologically advanced.

scholarly journals Energy-Efficient Wireless Hopping Sensor Relocation Based on Prediction of Terrain Conditions

Electronics ◽  
2019 ◽  
Vol 9 (1) ◽  
pp. 49 ◽  
Author(s):  
Sooyeon Park ◽  
Moonseong Kim ◽  
Woochan Lee
Keyword(s):  
Energy Efficient ◽  
Wireless Sensors ◽  
Sensor Nodes ◽  
Theoretical Research ◽  
Network Information ◽  
Charging System ◽  
The Status ◽  
Actual Environment ◽  
Efficient Scheme ◽  
Sensor Relocation

It is inevitable for data collection that IoT sensors are distributed to interested areas. However, not only the proper placement of sensors, but also the replacement of sensors that have run out of energy is very difficult. As a remedy, wireless charging systems for IoT sensors have been researched recently, but it is apparent that the availability of charging system is limited especially for IoT sensors scattered in rugged terrain. Thus, it is important that the sensor relocation models to recover sensing holes employ energy-efficient scheme. While there are various methods in the mobile model of wireless sensors, well-known wheel-based movements in rough areas are hard to achieve. Thus, research is ongoing in various areas of the hopping mobile model in which wireless sensors jump. Many past studies about hopping sensor relocation assume that all sensor nodes are aware of entire network information throughout the network. These assumptions do not fit well to the actual environment, and they are nothing but classical theoretical research. In addition, the physical environment (sand, mud, etc.) of the area in which the sensor is deployed can change from time to time. In this paper, we overcome the theoretical-based problems of the past researches and propose a new realistic hopping sensor relocation protocol considering terrain conditions. Since the status of obstacles around the sensing hole is unknown, the success rate of the hopping sensor relocation is used to predict the condition of the surrounding environment. Also, we are confident that our team is uniquely implementing OMNeT++ (Objective Modular Network Testbed in C++) simulation in the hopping sensor relocation protocol to reflect the actual communication environment. Simulations have been performed on various obstacles for performance evaluation and analysis, and we are confident that better energy efficiency with later appearance of sensing holes can be achieved compared to well-known relocation protocols.

Energy Efficient Transmission in Cellular Networks

2013 ◽  
pp. 109-133
Author(s):  
Juejia Zhou ◽  
Mingju Li ◽  
Liu Liu ◽  
Xiaoming She ◽  
Lan Chen
Keyword(s):  
Energy Consumption ◽  
Cellular Networks ◽  
Energy Efficient ◽  
Cellular Network ◽  
Information And Communications Technology ◽  
Future Research ◽  
Main Role ◽  
Radio Access ◽  
The Status ◽  
Efficient Transmission

A cellular network is a kind of dedicated distributed network with wireless radio access, and nowadays, it is widely used in people’s lives. The statistics shows that currently there are 4 billion mobile subscribers in the world, and unquestionably, the cellular network has been playing the main role of energy consumption in ICT (Information and Communications Technology). This chapter discloses the status of energy consumption in the cellular network and introduces energy efficient transmission strategies for accessing a network of cellular networks, especially in cell selection and power control scopes. For future research perspectives, this chapter also introduces the roadmap of smart radio resource management for energy efficient transmission.

scholarly journals Assessment of the Performance Status of a Wharf

Pomorstvo ◽  
2018 ◽  
Vol 32 (2) ◽  
pp. 245-257
Author(s):  
Pereowei Garrick Ombor ◽  
Thaddeus C. Nwaoha
Keyword(s):  
Fuzzy Logic ◽  
Statistical Data ◽  
Performance Status ◽  
Rule Base ◽  
Subjective Judgement ◽  
The Status ◽  
Base Method ◽  
Logic Rule ◽  
Good Agreement

This paper suggests Fuzzy-logic-rule base method to assess the performance status of a wharf in order to classify it. The method proposed is predicated upon its ability to analyse processes and operations based on subjective judgement with little or no statistical data available. The study also shows that fuzzy-logic rule base is a veritable tool to qualitatively and quantitatively assess the status of a wharf offering ferry service. Using the model developed in this study, the performance status of Yenagoa wharf has been determined to be orange, having a (WPS) overall of 4.8. The status of the wharf has been in good agreement with the perception of stakeholders that the Yenagoa wharf needs restructuring to curb the frequent crisis occurring among stakeholders. The model also indicated those areas of the wharf’s operations needing attention. The study indicates that even though major components that determine the quality and profitability of the wharf’s ferry service are high in value, the overall status of the wharf may not be necessarily high. As such, the study method can be used to control the growing ill-feeling between boat operators and passengers while harmonizing all stakeholders (operators, passengers, and regulators etc) to work together to improve the status of the wharf.

Capital Structure and Performance Status of China's New Energy Listed Companies

2014 ◽  
Vol 687-691 ◽  
pp. 4700-4704
Author(s):  
Wei Xing
Keyword(s):  
Capital Structure ◽  
Preliminary Analysis ◽  
Performance Status ◽  
Listed Companies ◽  
Status Quo ◽  
Energy Industry ◽  
Financial Indicators ◽  
New Energy ◽  
The Status ◽  
And Performance

This paper has analyzed the capital structure and performance status of new energy enterprises in China. At first, it selects related businesses with typical significance, and selects important financial indicators, to make a preliminary analysis in detail of the status quo of new energy industry in recent 3 years.

scholarly journals Variants in the Myostatin Gene and Physical Performance Phenotype of Elite Athletes

Genes ◽  
2021 ◽  
Vol 12 (5) ◽  
pp. 757
Author(s):  
Valentina Ginevičienė ◽  
Audronė Jakaitienė ◽  
Erinija Pranckevičienė ◽  
Kazys Milašius ◽  
Algirdas Utkus
Keyword(s):  
Physical Performance ◽  
Elite Athletes ◽  
Performance Status ◽  
Muscle Growth ◽  
Endurance Performance ◽  
Negative Regulator ◽  
Myostatin Gene ◽  
Mstn Gene ◽  
Homozygous Genotype ◽  
The Status

The MSTN gene is a negative regulator of muscle growth that is attracting attention as a candidate gene for physical performance traits. We hypothesised that variants of MSTN might be associated with the status of elite athlete. We therefore sought to study the potential role of MSTN in the physical performance of athletes by analysing the whole coding sequence of the MSTN gene in a cohort of Lithuanian elite athletes (n = 103) and non-athletes (n = 127). Consequently, two genetic variants were identified: the deletion of one of three adenines in the first intron (c.373+90delA, rs11333758) and a non-synonymous variant in the second exon (c.458A>G, p.Lys(K)153Arg(R), rs1805086). Among all samples, the MSTN rs1805086 Lys(K) allele was the most common form in both groups. Homozygous genotype for the less common Arg(R) allele was identified in only one elite canoe rower, and we could find no direct association between rs1805086 and successful results in elite athletes. Surprisingly, the intronic variant (rs11333758) was abundant among all samples. The main finding was that endurance-oriented athletes had 2.1 greater odds of being MSTN deletion genotype than non-athletes (13.6% vs. 0.8%). The present study confirms the association of the polymorphism rs11333758 with endurance performance status in Lithuanian elite athletes.

scholarly journals STATUS PENGELOLAAN PERIKANAN SKALA KECIL BERBASIS ZONASI DI WILAYAH PERAIRAN KABUPATEN BANGKA

2019 ◽  
Vol 11 (2) ◽  
pp. 125
Author(s):  
Yeyen Mardyani ◽  
Rahmat Kurnia ◽  
Luky Adrianto
Keyword(s):  
Fisheries Management ◽  
Performance Status ◽  
Ecosystem Approach ◽  
Fishing Ground ◽  
Small Scale ◽  
Small Scale Fisheries ◽  
Institutional Strengthening ◽  
The Status ◽  
Coral Reef Ecosystems ◽  
Tactical Decisions

Pemanfaatan wilayah perairan di sekitar Pulau Bangka oleh sektor perikanan khususnya perikanan skala kecil semakin terdesak akibat daerah penangkapan ikan (DPI) yang semakin berkurang dikarenakan wilayah Izin Usaha Pertambangan (IUP) di laut semakin bertambah. Hal ini menyebabkan ruang gerak nelayan semakin sempit. Penelitian ini bertujuan untuk menilai status keragaan pengelolaan perikanan skala kecil berdasarkan Zona DPI yang dibagi menjadi 3, yaitu Zona A (DPI dengan IUP aktif), Zona A1 (DPI dengan IUP non aktif), dan Zona B (DPI tanpa IUP). Status keragaan dinilai melalui pendekatan Ecosystem Approach for Fisheries Management (EAFM) dengan menggunakan indikator pada domain sumberdaya ikan, habitat dan ekosistem, teknologi penangkapan ikan, sosial, ekonomi, dan kelembagaan. Hasil penilaian menunjukkan bahwa status pengelolaan perikanan pada masing-masing zona DPI yaitu Zona A dengan nilai total agregat sebesar 1.179,50 termasuk dalam kategori status sedang; Zona A1 dengan nilai total agregat 1.404,5 termasuk dalam kategori status baik, dan Zona B dengan nilai total agregat sebesar 1.377 yang termasuk kategori status sedang. Pengelolaan perikanan dengan keputusan taktis diprioritaskan pada indikator range collaps, kapasitas penangkapan, ekosistem terumbu karang, konflik perikanan, pendapatan nelayan, dan penguatan kelembagaan.The use of Bangka waters by the fisheries sector, especially small scale fisheries, is increasingly pushed due to the reduced fishing ground (DPI) because of the increasing area of   the Sea Mining Business License (IUP). This causes less space for fishermen. This study aims to assess the performance status of small scale fisheries management based on the DPI Zone which is divided into 3, namely Zone A (DPI with active IUP), Zone A1 (DPI with non-active IUP), and Zone B (DPI without IUP). Performance status is assessed through the Ecosystem Approach for Fisheries Management (EAFM) approach using indicators in the domain of fish resources, habitat and ecosystem, fisheries technology, social, economic, and institutional. The assessment results indicate that the status of fisheries management in each DPI zone, namely Zone A with an aggregate total value of 1,179.50, is included in the medium status category; Zone A1 with a total aggregate value of 1,404.5 is included in the good status category, and Zone B with an aggregate value of 1,377 which is included in the medium status category. Fisheries management with tactical decisions are prioritized on indicators of range collapse, fishing capacity, coral reef ecosystems, fisheries conflicts, fishermen income, and institutional strengthening.

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