Operational concept and validation of a new airport low-level wind information system

2020 ◽  
Vol 124 (1277) ◽  
pp. 975-1015
Author(s):  
T. Iijima ◽  
N. Matayoshi ◽  
S. Ueda

AbstractPilots are sometimes not provided with sufficient information to avoid go-arounds or other operational disruptions that result from low-level wind disturbances. We identified issues with existing windshear alerting systems and developed three types of airport low-level wind information systems to enhance pilot situational awareness of wind conditions by providing landing aircraft with quantitative and visualised wind information for ultimately mitigating air service disruptions due to low-level wind disturbances. The three systems, Airport Low-level Wind Information (ALWIN) and Low-level Turbulence Advisory System (LOTAS), both of which use Doppler radar/lidar, and Sodar-based Low-level Wind Information (SOLWIN), which uses Doppler SOnic Detection And Ranging (SODAR), have different costs and capabilities that allow the most cost-effective system to be selected for an airport according to its scale and local weather characteristics. This paper presents the operational concepts of our newly developed airport low-level wind information systems and describes their validation.

2019 ◽  
Vol 13 (1) ◽  
pp. 266-271
Author(s):  
Georgina Kakra Wartemberg ◽  
Thomas Goff ◽  
Simon Jones ◽  
James Newman

Aims: To create a more effective system to identify patients in need of revision surgery. Background: There are over 160,000 total hip and knee replacements performed per year in England and Wales. Currently, most trusts review patients for up to 10 years or more. When we consider the cost of prolonged reviews, we cannot justify the expenditure within a limited budget. Study Design & Methods: We reviewed all patients' notes that underwent primary hip and knee revision surgery at our institution, noting age, gender, symptoms at presentation, referral source, details of the surgery, reason for revision and follow up history from primary surgery. Results: There were 145 revision arthroplasties (60 THR and 85 TKR) that met our inclusion criteria. Within the hip arthroplasty group, indications for revision included aseptic loosening (37), dislocation (10), and infection (3), periprosthetic fracture, acetabular liner wear and implant failure. All thirty-seven patients with aseptic loosening presented with pain. Twenty-five were referred from general practice with new symptoms. The remaining were clinic follow-ups. The most common reason for knee revision was aseptic loosening (37), followed by infection (21) and then progressive osteoarthritis (8). Most were referred from GP as a new referral or were clinic follow-ups. All patients were symptomatic. Conclusion: All the patients that underwent revision arthroplasty were symptomatic. Rather than yearly follow up, we recommend a cost-effective system. We are implementing a 'non face-to-face' system. Patients would be directly sent a questionnaire and x-ray form. The radiographs and forms will be reviewed by an experienced arthroplasty surgeon. The concerning cases will be seen urgently in a face-to-face clinic.


Author(s):  
Nikolay I. Dorogov ◽  
Ivan A. Kapitonov ◽  
Nazygul T. Batyrova

Author(s):  
George Kornaros ◽  
Ioannis Christoforakis ◽  
Othon Tomoutzoglou ◽  
Dimitrios Bakoyiannis ◽  
Kallia Vazakopoulou ◽  
...  

2011 ◽  
Vol 60 (3) ◽  
pp. 187-201 ◽  
Author(s):  
ANNA L. BOREK ◽  
JOANNA WILEMSKA ◽  
RADOSŁAW IZDEBSKI ◽  
WALERIA HRYNIEWICZ ◽  
IZABELA SITKIEWICZ

Streptococcus pyogenes (group A Streptococcus, GAS) is a human pathogen that causes diseases of various intensity, from mild strep throat to life threatening invasive infections and postinfectional sequelae. S. pyogenes encodes multiple, often phage encoded, virulence factors and their presence is related to severity of the disease. Acquisition of mobile genetic elements, carrying virulence factors, as phages or ICEs (integrative and cojugative elements) has been shown previously to promote selection of virulent clones. We designed the system of eight low volume multi- and one singleplex PCR reactions to detect genes encoding twenty virulence factors (spd3, sdc, sdaB, sdaD, speB, spyCEP, scpA, mac, sic, speL, K, M, C, I, A, H, G, J, smeZ and ssa) and twenty one phage and ICE integration sites described so far for S. pyogenes. Classification of strains based on the phage and virulence factors absence or presence, correlates with PFGE MLST and emm typing results. We developed a novel, fast and cost effective system that can be used to detect GAS virulence factors. Moreover, this system may become an alternative and effective system to differentiate between GAS strains.


Author(s):  
M. A. Znamenska ◽  
G. O. Slabkiy

A low level of computerization of primary and secondary health care and a higher level in tertiary health care is shown. At the same time a low level of Internet access in primary health care institutions and much higher - in institutions of secondary and tertiary levels of health care is shown. The current level of informatization does not allow health care institutions to implement an effective system of communication in healthcare.


Author(s):  
Monty McNair ◽  
Caroline Howard ◽  
Indira Guzman ◽  
Paul Watkin

Since the dawn of humanity, creativity has been critical to surmounting the challenges of life. Innovation is particularly essential to survival on every level from an individual solving his/her problems to a world dependent on adaptive approaches to cope with rapidly expanding populations and enormous international tensions. Currently, information systems programs are not fostering the creativity needed to sustain the innovation required to compete in the 21st century marketplace. Educators and researchers need to better understand the effects of creativity training on creative performance to best design programs that meet the needs of information systems personnel and their employers. The results of this study provide evidence that it would be valuable for organizations to experiment with creativity tutorials and recommend that future research be conducted using larger samples of individuals with low levels of creativity. Because the costs of informing people about creativity are low and creativity tutorials can be designed to be easily administered and completed, the authors recommend that a low-cost tutorial would be a cost effective and beneficial strategy for organizations to employ with information systems personnel, especially those who assess themselves as low in creativity.


Author(s):  
Cyril Onwubiko

Operators need situational awareness (SA) of their organisation’s computer networks and Information Systems in order to identify threats, estimate impact of attacks, evaluate risks, understand situations, and make sound decisions swiftly and accurately on what to protect against, and how to address incidents that may impact valued assets. Enterprise computer networks are often huge and complex, spanning across several WANs and supporting a number of distributed services. Understanding situations in such dynamic and complex networks is time-consuming and challenging. Operators SA are enhanced through a number of ways, one of which is through the use of situation-aware systems and technology. Designing situation-aware systems for computer network defence (CND) is difficult without understanding basic situational awareness design requirements of network applications and systems. Thus, this chapter investigates pertinent features that are foundation, essential, and beneficial for designing situation-aware systems, software, and network applications for CND.


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