keyword
MENU ▼
Read by QxMD icon Read
search

Helicopters

keyword
https://www.readbyqxmd.com/read/28648252/active-fault-tolerant-control-based-on-interval-type-2-fuzzy-sliding-mode-controller-and-non-linear-adaptive-observer-for-3-dof-laboratory-helicopter
#1
Samir Zeghlache, Tarak Benslimane, Abderrahmen Bouguerra
In this paper, a robust controller for a three degree of freedom (3 DOF) helicopter control is proposed in presence of actuator and sensor faults. For this purpose, Interval type-2 fuzzy logic control approach (IT2FLC) and sliding mode control (SMC) technique are used to design a controller, named active fault tolerant interval type-2 Fuzzy Sliding mode controller (AFTIT2FSMC) based on non-linear adaptive observer to estimate and detect the system faults for each subsystem of the 3-DOF helicopter. The proposed control scheme allows avoiding difficult modeling, attenuating the chattering effect of the SMC, reducing the rules number of the fuzzy controller...
June 22, 2017: ISA Transactions
https://www.readbyqxmd.com/read/28641984/bi-objective-approach-for-placing-ground-and-air-ambulance-base-and-helipad-locations-in-order-to-optimize-ems-response
#2
Milad Shahriari, Ali Bozorgi-Amiri, Shayan Tavakoli, Abolghasem Yousefi-Babadi
Shortening the travel time of patient transfer has clinical implications for many conditions such as cardiac arrest, trauma, stroke and STEMI. As resources are often limited precise calculations are needed. In this paper we consider the location problem for both ground and aerial emergency medical services. Given the uncertainty of when patients are in need of prompt medical attention we consider these demand points to be uncertain. We consider various ways in which ground and helicopter ambulances can work together to make the whole process go faster...
June 15, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28633669/impact-of-exercise-programs-among-helicopter-pilots-with-transient-lbp
#3
Knut Andersen, Roald Baardsen, Ingvild Dalen, Jan Petter Larsen
BACKGROUND: Flight related low back pain (LBP) among helicopter pilots is frequent and may influence flight performance. Prolonged confined sitting during flights seems to weaken lumbar trunk (LT) muscles with associated secondary transient pain. Aim of the study was to investigate if structured training could improve muscular function and thus improve LBP related to flying. METHODS: 39 helicopter pilots (35 men and 4 women), who reported flying related LBP on at least 1 of 3 missions last month, were allocated to two training programs over a 3-month period...
June 20, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28630705/physiological-effects-of-stress-related-to-helicopter-travel-in-federal-emergency-management-agency-search-and-rescue-canines
#4
E Perry, N Gulson, T-W Liu Cross, K S Swanson
Working canines are deployed by the Federal Emergency Management Agency (FEMA), as part of a National Disaster Response Plan. Stress associated with helicopter flight and the resulting physical effects on the dog are unknown. Our objective was to test the hypotheses that (1) helicopter travel affects the physiology and faecal microbiota of working canines, but that (2) physiological consequences of helicopter travel will not negatively affect their work performance. A total of nine FEMA canines were loaded onto helicopters and flown for 30 min in July 2015...
2017: Journal of Nutritional Science
https://www.readbyqxmd.com/read/28622064/re-comparison-of-helicopter-emergency-medical-services-transport-types-and-delays-on-patient-outcomes-at-two-level-i-trauma-centers
#5
Brodie Nolan, Alun Ackery
No abstract text is available yet for this article.
June 16, 2017: Prehospital Emergency Care
https://www.readbyqxmd.com/read/28611883/altitude-related-change-in-endotracheal-tube-cuff-pressures-in-helicopter-ems
#6
Stacy N Weisberg, Jonathan C McCall, Joseph Tennyson
INTRODUCTION: Over-inflation of endotracheal tube (ETT) cuffs has the potential to lead to scarring and stenosis of the trachea.1, 2,3, 4 The air inside an ETT cuff is subject to expansion as atmospheric pressure decreases, as happens with an increase in altitude. Emergency medical services helicopters are not pressurized, thereby providing a good environment for studying the effects of altitude changes ETT cuff pressures. This study aims to explore the relationship between altitude and ETT cuff pressures in a helicopter air-medical transport program...
June 2017: Western Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28593012/potential-benefit-of-physician-staffed-helicopter-emergency-medical-service-for-regional-trauma-care-system-activation-an-observational-study-in-rural-japan
#7
Tomohiro Abe, Takehiko Nagano, Hidenobu Ochiai
Objective: Involvement of all regional medical facilities in a trauma system is challenging in rural regions. We hypothesized that the physician-staffed helicopter emergency medical service potentially encouraged local facilities to participate in trauma systems by providing the transport of patients with trauma to those facilities in a rural setting. Materials and Methods: We performed two retrospective observational studies. First, yearly changes in the numbers of patients with trauma and destination facilities were surveyed using records from the Miyazaki physician-staffed helicopter emergency medical service from April 2012 to March 2014...
May 2017: Journal of Rural Medicine: JRM
https://www.readbyqxmd.com/read/28590996/helicopter-transport-from-the-scene-of-injury-are-there-improved-outcomes-for-pediatric-trauma-patients
#8
Sandra M Farach, Nebbie E Walford, Lindsey Bendure, Ernest K Amankwah, Paul D Danielson, Nicole M Chandler
BACKGROUND: There is conflicting data to support the routine use of helicopter transport (HT) for the transfer of trauma patients. The purpose of this study was to evaluate outcomes for trauma patients transported via helicopter from the scene of injury to a regional pediatric trauma center. METHODS: The institutional trauma registry was queried for trauma patients presenting from January 2000 through March 2012. Of 9119 patients, 1709 patients who presented from the scene were selected for further evaluation...
June 6, 2017: Pediatric Emergency Care
https://www.readbyqxmd.com/read/28587114/a-multiple-sensors-platform-method-for-power-line-inspection-based-on-a-large-unmanned-helicopter
#9
Xiaowei Xie, Zhengjun Liu, Caijun Xu, Yongzhen Zhang
Many theoretical and experimental studies have been carried out in order to improve the efficiency and reduce labor for power line inspection, but problems related to stability, efficiency, and comprehensiveness still exist. This paper presents a multiple sensors platform method for overhead power line inspection based on the use of a large unmanned helicopter. Compared with the existing methods, multiple sensors can realize synchronized inspection on all power line components and surrounding objects within one sortie...
May 26, 2017: Sensors
https://www.readbyqxmd.com/read/28584321/occupational-exposure-to-electromagnetic-fields-in-the-polish-armed-forces
#10
Jaromir Sobiech, Jarosław Kieliszek, Robert Puta, Dagmara Bartczak, Wanda Stankiewicz
OBJECTIVES: Standard devices used by military personnel that may pose electromagnetic hazard include: radars, missile systems, radio navigation systems and radio transceivers. The aim of this study has been to evaluate the exposure of military personnel to electromagnetic fields. MATERIAL AND METHODS: Occupational exposure to electromagnetic fields was analyzed in the work environment of personnel of 204 devices divided into 5 groups (surface-to-air missile system radars, aircraft and helicopters, communication devices, surveillance and height finder radars, airport radars and radio navigation systems)...
April 28, 2017: International Journal of Occupational Medicine and Environmental Health
https://www.readbyqxmd.com/read/28581278/reduced-mortality-in-severely-injured-patients-using-hospital-based-helicopter-emergency-medical-services-in-interhospital-transport
#11
Oh Hyun Kim, Young Il Roh, Hyung Il Kim, Yong Sung Cha, Kyoung Chul Cha, Hyun Kim, Sung Oh Hwang, Kang Hyun Lee
Recent evidence has demonstrated the survival benefits of helicopter transport for trauma patients. The purpose of this study was to evaluate the effectiveness of hospital-based helicopter emergency medical services (H-HEMS) in comparison with ground ambulance transport in improving mortality outcomes in patients with major trauma. Study participants were divided into 2 groups according to type of transport to the trauma center; that is, either via ground emergency medical services (GEMS) or via H-HEMS. The study was conducted from October 2013 to July 2015...
July 2017: Journal of Korean Medical Science
https://www.readbyqxmd.com/read/28571104/a-review-of-the-burns-caseload-of-a-physician-based-helicopter-emergency-medical-service
#12
Karina Hall, Brian Burns
OBJECTIVES: The aim of this study was to describe patient demographics, injuries, physiology and interventions performed by retrieval physicians in the care of burns patients in both a pre-hospital and interhospital setting. METHODS: A retrospective review of patient records from a large Australian Helicopter Emergency Medical Service was conducted. Demographics, injury, burn type, physiology and intervention data were extracted into a database for statistical analysis...
June 1, 2017: Emergency Medicine Australasia: EMA
https://www.readbyqxmd.com/read/28570313/the-cost-of-burn-transfers-a-retrospective-review-of-7-years-of-admissions-to-a-regional-burn-center
#13
Ryan E Austin, Sofie Schlagintweit, Marc G Jeschke, Russell MacDonald, Mahvareh Ahghari, Shahriar Shahrokhi
The transport of thermally injured patients can involve significant costs; however, not all thermally injured patients necessitate transfer to a burn center. The purpose of this study was to review transfers to an American Burn Association-verified regional burn center to determine whether the transfers were necessary and the cost associated with unnecessary transfers. A retrospective chart review identified 707 patients transferred to an American Burn Association-verified burn center with an acute burn injury during a 7-year period...
May 19, 2017: Journal of Burn Care & Research: Official Publication of the American Burn Association
https://www.readbyqxmd.com/read/28559075/impact-of-pre-hospital-transportation-on-survival-in-skiers-and-snowboarders-with-traumatic-brain-injury
#14
Hai Sun, Navdeep S Samra, Piyush Kalakoti, Kanika Sharma, Devi Prasad Patra, Rimal H Dossani, Jai Deep Thakur, Elizabeth A Disbrow, Kevin Phan, Sreenivas P Veeranki, Aqueel Pabaney, Christina Notarianni, John T Owings, Anil Nanda
INTRODUCTION: Prehospital helicopter utilization and its impact on outcomes in snowboarders and skiers incurring traumatic brain injury (TBI) is unknown. The present study investigates the association of helicopter transport with survival of snowboarders and skiers with TBI, in comparison with ground emergency medical services (EMS) using data derived from the National Trauma Data Bank (2007-2014). METHODS: Primary and secondary endpoints were defined as in-hospital survival, and absolute risk reduction based upon number needed to transport (treat) respectively...
May 27, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28533934/mortality-outcomes-in-trauma-patients-undergoing-prehospital-red-blood-cell-transfusion-a-systematic-literature-review
#15
REVIEW
Gregory S Huang, C Michael Dunham
The value of prehospital red blood cell (RBC) transfusion for trauma patients is controversial. The purposes of this literature review were to determine the mortality rate of trauma patients with hemodynamic instability and the benefit of prehospital RBC transfusion. A 30-year systematic literature review was performed in 2016. Eligible studies were combined for meta-analysis when tests for heterogeneity were insignificant. The synthesized mortality was 35.6% for systolic blood pressure ≤ 90 mmHg; 51.1% for ≤ 80 mmHg; and 63...
2017: International Journal of Burns and Trauma
https://www.readbyqxmd.com/read/28530773/efficiency-of-instant-messaging-applications-in-coordination-of-emergency-calls-for-combat-injuries-a-pilot-study
#16
Sami Eksert, Mehmet Burak Aşık, Sinan Akay, Kenan Keklikçi, Fevzi Nuri Aydın, Mehmet Çoban, Ali Kantemir, Onur Güngör, Beyazıt Garip, Mustafa Suphi Turgut, Kenan Olcay
BACKGROUND: Coordination of an emergency response team is an important determinant of prompt treatment for combat injuries in hospitals. The authors hypothesized that instant messaging applications for smartphones could be appropriate tools for notifying emergency response team members. The objective of this study was to investigate the efficiency of a commercial instant messaging application (WhatsApp, Mountain View, CA) as a communication tool for the emergency team in a level-I trauma center...
May 2017: Ulusal Travma Ve Acil Cerrahi Dergisi, Turkish Journal of Trauma & Emergency Surgery: TJTES
https://www.readbyqxmd.com/read/28518005/safety-considerations-for-medical-staff-and-patients-who-fly-over-water-in-a-helicopter-for-work-or-recreation
#17
Christopher J Brooks, Conor V MacDonald
BACKGROUND: Around 25% of people involved in a helicopter accident in water do not survive. From time to time, physicians and their medical staff are required to fly over water in a helicopter to attend one or more seriously ill patients. Many will have had little or no experience of the issues involved if the helicopter has an accident in the water. Also as Family Practitioners, Aeromedical Examiners, and Flight Surgeons, they are asked to provide advice to patients, travel agents, and airline booking agents about whether an overwater helicopter flight is advisable or not...
April 1, 2017: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/28517943/implications-of-parent-child-relationships-for-emerging-adults-subjective-feelings-about-adulthood
#18
Anna K Lindell, Nicole Campione-Barr, Sarah E Killoren
Little is known about the role of parents in promoting their children's successful transition to adulthood, particularly for college students who may maintain stronger ties to parents than other emerging adults. The present study therefore investigated longitudinal implications of parent-child relationship qualities during emerging adults' first year of college for their feelings about the upcoming transition to adulthood 3 years later, as well as implications of 3 types of parental control (behavioral control, psychological control, helicopter parenting) for these associations...
May 18, 2017: Journal of Family Psychology: JFP
https://www.readbyqxmd.com/read/28499685/ultrasound-in-the-royal-danish-air-force-search-and-rescue-helicopter-2-case-reports
#19
René Christian Bleeg
No abstract text is available yet for this article.
May 2017: Air Medical Journal
https://www.readbyqxmd.com/read/28499683/response-of-flight-nurses-in-a-simulated-helicopter-environment
#20
David M Kaniecki, Ronald L Hickman, Celeste M Alfes, Andrew P Reimer
OBJECTIVE: The purpose of this study was to determine if a helicopter flight simulator could provide a useful educational platform by creating experiences similar to those encountered by actual flight nurses. METHODS: Flight nurse (FN) and non-FN participants completed a simulated emergency scenario in a flight simulator. Physiologic and psychological stress during the simulation was measured using heart rate and perceived stress scores. A questionnaire was then administered to assess the realism of the flight simulator...
May 2017: Air Medical Journal
keyword
keyword
12571
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"