Helicopter Landing Ship (HLS): Undercarriage Strength and the Role of the Human Factor

2009 ◽  
Author(s):  
Ephraim Suhir
Keyword(s):  
Human Factor ◽  
Probabilistic Approach ◽  
Operation Time ◽  
Extreme Value Distribution ◽  
Helicopter Landing ◽  
To Come ◽  
The Times ◽  
The Moment ◽  
Time Required

Based on the probabilistic approach and using the extreme value distribution (EVD) technique, we address the helicopter undercarriage strength in a helicopter-landing-ship (HLS) situation. Our analysis contains an attempt to quantify, also on the probabilistic basis, the role of the human factor in the situation in question. This factor is important from the standpoint of the operation time and, hence, from the standpoint of the likelihood of safe landing during the lull period in the sea condition. The operation time includes the time required for the officer-on-ship-board and the helicopter pilot to come up with their go-ahead decisions, and the time of actual landing. It is assumed, for the sake of simplicity, that both these times could be approximated by Rayleigh’s law, while the lull duration follows the normal law. Safe landing can be expected if the probability that it takes place during the lull time is sufficiently high. The probability that the helicopter undercarriage strength is not compromised can be evaluated as the product of the probability that landing occurs during the lull time and the probability that the relative velocity of the helicopter with respect the ship’s deck at the moment of the encounter of the undercarriage with the deck does not exceed the allowable level. The developed model can be used when establishing the requirements for the undercarriage strength, as well as when developing guidelines for personnel training. Particularly, it can be employed for establishing the times that need to be met by the two humans involved to make their decisions for landing and to actually land the helicopter in a timely fashion. It goes without saying that plenty of additional risk analyses (associated with the need to quantify various underlying uncertainties) and human psychology related effort will be needed to make such guidelines practical.

Helicopter Landing Ship: Undercarriage Strength and the Role of the Human Factor

2009 ◽  
Vol 132 (1) ◽  
Author(s):  
E. Suhir
Keyword(s):  
Human Factor ◽  
Operation Time ◽  
Extreme Value Distribution ◽  
Mean Value ◽  
Helicopter Landing ◽  
The Times ◽  
The Moment ◽  
Normal Law ◽  
Time Required

We address, using probabilistic modeling and the extreme-value-distribution technique, the helicopter undercarriage strength in a helicopter-landing-ship situation. Our analysis contains an attempt to quantify, on the probabilistic basis, the role of the human factor in the situation in question. This factor is important from the standpoint of the operation time that affects the likelihood of safe landing during the lull period in the sea condition. The operation time includes (1) the time required for the officer-on-ship-board and the helicopter pilot to make their go-ahead decisions and (2) the time of actual landing. It is assumed, for the sake of simplicity, that both these times could be approximated by Rayleigh’s law, while the lull duration follows the normal law with a high enough ratio of the mean value to the standard deviation. Safe landing could be expected if the probability that it occurs during the lull time is sufficiently high. The probability that the helicopter undercarriage strength is not compromised can be evaluated as a product of the probability that landing indeed occurs during the lull time and the probability that the relative velocity of the helicopter undercarriage with respect to the ship’s deck at the moment of encounter does not exceed the allowable level. This level is supposed to be determined for the helicopter-landing-ground situation. The developed model can be used when developing specifications for the undercarriage strength, as well as guidelines for personnel training. Particularly, the model can be of help when establishing the times to be met by the two humans involved to make their go-ahead decisions for landing and to actually land the helicopter. Plenty of additional risk analyses (associated with the need to quantify various underlying uncertainties) and human psychology related efforts will be needed, of course, to make such guidelines practical.

Motivation to learn, mobile learning and online learning climate: moderating role of learner interaction

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Deepika Swain ◽  
Lalatendu Kesari Jena ◽  
Sanket Sunand Dash ◽  
Rama Shankar Yadav
Keyword(s):  
Online Learning ◽  
Mobile Learning ◽  
Learning Climate ◽  
Motivation To Learn ◽  
Content Type ◽  
Learner Interaction ◽  
To Come ◽  
The Times ◽  
Moderating Role

Purpose The purpose of this paper is to empirically exhibit the moderating effect of learner interaction (LI) on motivation to learn (MTL), mobile learning (ML) and online learning climate (OLC), so as to bring in enhanced rigour to the virtual knowledge dissemination during the times of crisis. Design/methodology/approach A total of 784 valid responses were considered for the confirmatory factor analysis to test the proposed hypotheses. Findings The study found that MTL and ML contributed to improved OLC and high LI moderated the positive relationship between MTL, ML and OLC. LI also directly contributed to an improved OLC. Practical implications Measures need to be designed to crowbar motivation to ensure heightened interaction of learners, to gear up the ML reach soaring heights achieving a dynamic OLC. Acclimatization of the OLC will be the visionary solution to tackle learning disruption during today’s pandemic times and also many other challenges to come in near-far future. Originality/value The current study established the moderating role of LI in influencing OLC, and also motivating facilitator’s for designing upgraded content, and thereby fuelling the intention to learn.

scholarly journals THE FACT OF CREATION AND THE LIMITS OF SCIENTIFIC KNOWLEDGE

2020 ◽  
Vol 4 (1) ◽  
pp. 85-101
Author(s):  
Ion Marian CROITORU ◽  
Keyword(s):  
New Physics ◽  
The Body ◽  
Christian Theology ◽  
The World ◽  
The Creation ◽  
Science And Theology ◽  
To Come ◽  
The Times ◽  
The Moment ◽  
The Universe

Although scientific research is in full bloom regarding, for instance, the environment, the fact of creation cannot be ignored either, even if some scientists deny it, while others ascertain it, albeit from perspectives, however, foreign to the patristic vision specific of the Orthodoxy. Consequently, the limits of cosmology are structured as well by Christian theology, which shows that the study of the world, guided by laws of physics in a limited framework, is carried out inside the creation affected by the consequences of the primordial sin, so that the reality of the world before sin is known only to those who reach spiritual perfection and holiness, therefore, from an eschatological perspective, since they, too, go through the moment of separation of the soul from the body, waiting for the general resurrection. Therefore, a new way of being is affirmed in the Orthodox Church, by the personal experience of each believer, which is a transformation on the personal and cosmic level, according to Jesus Christ’s resurrected body, which means the reality of a new physics, which concerns both the beginning of the universe, but also its new dimension, at the Lord’s Second Coming, when heaven and earth will be renewed by transfiguration. Regarding the existence of the universe, the differences are given by the perceptions of two cosmologies. Thus, the theonomous cosmology highlights man’s purpose on earth, the necessity of moral and spiritual life, and the transfiguration of creation, explaining God’s presence in His creation, but also His work in it, namely the transcendence and the immanence in relation to the creation. The autonomous cosmology engenders the evolutionist theory, which leads to secularism and, consequently, to the gap between the contemporary man’s technological progress, and his spiritual and moral regress. Today, more scientists are turning their attention also to the data of the divine Revelation, the way it makes itself known by its organs, the Holy Scripture and the Holy Tradition, in the one Church, which will mean a deepening of the dialogue between science and theology in favour of the man from everywhere and from the times to come.

scholarly journals SEJARAH PERKEMBANGAN HISAB DAN RUKYAT

ELFALAKY ◽  
2019 ◽  
Vol 3 (1) ◽  
Author(s):  
Ehsan Hidayat Hidayat
Keyword(s):  
The Moon ◽  
General Observation ◽  
The Times ◽  
The Moment ◽  
Modern Era ◽  
Initial Method

Hisab and rukyat are two methods used in the determination of the Muslim worship time, such as Ramadan fast, five times prayer, Eid al-Adha sacrifice, and also for the benefit of human in general. observation of the sky made by humans is an activity that is closely related to the needs of man himself. History summarizes the journey of Falak science treasures in the early determination of the kamariyah months from the discovery of classical methods to development in the modern era. The initial method used was the role of both eyes as the human optic of the moment to see the moon on the 29th of the lunar month. And as the times progressed to the method of rukyatul hilal by combining the modern product of the telescope. The position of reckoning that one side of the rukyah can not be separated in its development. Known at the time of the dinas umayah development of astronomy began to be shaken, that is with the translation of the prime work of books of astronomy from Greek to Arabic. Miftah an-nujum that is adopted into hermes is the first Muslim heart book. And to the works of the modern era that colored many of rukyat itself.Keyword : Hisab and rukyat, the beginning of the month kamariyah, history

‘The times they are a changin’’: Tracing the transformation of Irish Catholicism through the eyes of a journalist

2017 ◽  
Author(s):  
Patsy McGarry
Keyword(s):  
Irish Society ◽  
Church Hierarchy ◽  
To Come ◽  
The Times ◽  
Role Of Religion ◽  
The Church ◽  
Do So

Patsy McGarry draws on the knowledge of the changed role of religion in Irish society that he has accumulated as religious affairs correspondent of The Irish Times through the troubled recent decades. He points out that until the Church hierarchy is prepared to acknowledge responsibility for their poor handling of the clerical abuse scandals and the pain inflicted on the survivors, there will be no healing. His treatment of the various scandals and the role of Irish bishops in trying to limit reputational damage to the Church, illustrate McGarry’s contention that the times are definitely ‘a changin’’ and they will continue to do so for some time to come in Ireland.

The Activation of Human Factor X in Sodium Citrate: the Role of Factor VII

1976 ◽  
Vol 36 (01) ◽  
pp. 104-114 ◽  
Author(s):  
D. L Aronson ◽  
A. J Mustafa
Keyword(s):  
Sodium Citrate ◽  
Human Factor ◽  
Deae Cellulose ◽  
Factor Ix ◽  
Factor Vii ◽  
Factor X

SummaryHuman factor X was purified by several different procedures yielding products which had varying amounts of factor VII and factor IX. Treatment with CHC13 during the fractionation of the factor X removed 95% of the factor VII and factor IX activity and the resulting factor X activated more slowly when incubated in 25% sodium citrate. Removal of residual factor VII by DEAE cellulose chromatography yielded a factor X which activated still more slowly and less completely. When the factor VII, removed by chromatography, was added to the chromatographed factor X, the ability to be activated in 25% sodium citrate was restored. Confirmatory evidence for the role of factor VII in this reaction was the inhibition of the conversion of the factor X by both DFP and SBTI.

cAbdullah Yūsuf cAlī & Muhammad Asad: Two Approaches to the English Translation of the Qur'an

2000 ◽  
Vol 2 (1) ◽  
pp. 107-123 ◽  
Author(s):  
Muzaffar Iqbal
Keyword(s):  
Twentieth Century ◽  
Comparative Study ◽  
Life Experiences ◽  
Academic Career ◽  
British India ◽  
Human Understanding ◽  
English Translations ◽  
Political Milieu ◽  
The Times

This article attempts to present a comparative study of the role of two twentieth-century English translations of the Qur'an: cAbdullah Yūsuf cAlī's The Meaning of the Glorious Qur'ān and Muḥammad Asad's The Message of the Qur'ān. No two men could have been more different in their background, social and political milieu and life experiences than Yūsuf cAlī and Asad. Yūsuf 'Alī was born and raised in British India and had a brilliant but traditional middle-class academic career. Asad traversed a vast cultural and geographical terrain: from a highly-disciplined childhood in Europe to the deserts of Arabia. Both men lived ‘intensely’ and with deep spiritual yearning. At some time in each of their lives they decided to embark upon the translation of the Qur'an. Their efforts have provided us with two incredibly rich monumental works, which both reflect their own unique approaches and the effects of the times and circumstances in which they lived. A comparative study of these two translations can provide rich insights into the exegesis and the phenomenon of human understanding of the divine text.

PINGVINAS IR PROTĖJAS. Įsivaizdavimas kaip kitybė manyje

2007 ◽  
Vol 4 ◽  
pp. 21-37
Author(s):  
Kristupas Sabolius
Keyword(s):  
Fight Club ◽  
The World ◽  
The Moment ◽  
Hollywood Movie

Kitybės klausimas dažniausiai kyla iš ego santykio su kitais arba su pasauliu. Šiame straipsnyje daroma prielaida, kad įsivaizdavimo funkcija ištirpdo subjektą ir jame pačiame atveria intersubjektyvią perspektyvą. Šiuo tikslu sugretinami Sartre’o, Husserlio bei Merleau-Ponty įsivaizdavimo funkcijos tyrimai, kuriuose išryškėja vaizdo kaip iš ego centro išslystančios ribos statusas, ir Holivudo filmo „Kovos klubas“ siužetas. Viename iš šios juostos epizodų pasirodantis pingvinas žymi egologinės schizmos akimirką ir tampa fantazijos apsireiškimu ir įsikūnijimu.Išgryninus žaidybinį, savarankišką ir multiformišką charakterį, galime konstantuoti, kad įsivaizdavimas, jei kalbėtume Kanto terminais, yra ne papildanti tarpinė funkcija, bet transcendentalinio subjekto genezėje atlieka paradoksalų „svetimos vidujybės“ arba „vidinės svetimybės“ vaidmenį. Vaizduotė yra katalizatoriaus, kuris, likdamas šalia, įgalina transcendentalinių formų išsikristalizavimą.Pagrindiniai žodžiai: vaizduotė, įsivaizdavimas, fantazija, ego, kitybė, sąmonė.PENGUIN AND PROTEUSImagination as Otherness in meKristupas Sabolius SummaryThe question of Otherness is usually taken into account while discussing the Ego’s relation with Others as well as with the World. This article is based on the premises that the function of phantasy melts the subjectivity, revealing the perspective of intersubjectivity within it. On this purpose Sartre’s, Husserl’s and Merleau-Ponty’s researches on the function of imagination, which elucidate the image as the boundary slipping from the centre of Ego, are compared to the story of Hollywood’ movie „Fight Club“. The penguin, which appears in one of the episodes, registers the moment of egological schism, thus becoming the revelation and incarnation of phantasy. While the playful, autonomous and multiform character of imaginary is cleared out, we can ascertain, speaking in Kantian terms, that it has not a complementary or intermediary function, but, in the genesis of transcendental subject, plays the paradoxical role of „allien innerness“ or „inner alienity“. Thought remaining always beside, imagination is a catalyzer which enables crystallization of transcendental forms.Keywords: imagination, imaginary, phantasy, ego, otherness, consciousness.

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