Results 21 to 30 of about 11,759,117 (298)

Positioning Accuracy Model of Sailing‐Circle GPS‐Acoustic Method

open access: yesEarth and Space Science, 2021
Sailing‐circle GPS‐acoustic method, prevalently applied for measuring ocean floor crustal deformation, allows the precise positioning of an underwater transponder in a global frame.
Xinhua Chen   +4 more
doaj   +1 more source

A Graphical Method for Great Circle Routes

open access: yesPolish Maritime Research, 2017
A great circle route (GCR) is the shortest route on a spherical earth model. Do we have a visual diagram to handle the shortest route? In this paper, a graphical method (GM) is proposed to solve the GCR problems based on the celestial meridian diagram ...
Hsu Tien-Pen   +2 more
doaj   +1 more source

Efficiency of a Voluntary Speed Reduction Algorithm for a Ship’s Great Circle Sailing [PDF]

open access: yesTransNav, 2020
The great-circle is the shortest distance between two points on the surface of the earth. When planning a ship’s sailing route (waypoints and forward speeds) for a specific voyage, the great circle route is commonly considered as a reference route ...
Helong Wang, Wengang Mao, Leif Eriksson
doaj   +1 more source

A Diophantine Inequality Involving Mixed Powers of Primes with a Specific Type

open access: yesMathematics
Let λ1,λ2,λ3 be nonzero real numbers, not all of the same sign; let λ1/λ2 be irrational; and let η be any real number. We investigate the solvability of the inequality |λ1p1+λ2p2+λ3p32+η|0 in the prime variables p1, p2, and p3.
Tatiana L. Todorova, Atanaska Georgieva
doaj   +1 more source

The Positive Effect of the English Reading Circle Method on Students’ Reading Performance: Tishk University Case Study [PDF]

open access: yes
This study aims to investigate how the reading circle, also known as the literature circle method, affects students’ reading performances and lessons. his study will be an example study in helping students who do not like reading gain a reading habit. In
Kucuk, Turgay
core   +1 more source

Serum Myonectin Levels Are Positively Associated With Physical Function and Lower Frailty‐Related Limitation in Maintenance Hemodialysis Patients: A Cross‐Sectional Study

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Maintenance hemodialysis (MHD) patients frequently suffer from frailty, characterized by reduced physical function and poor prognosis. Myokines, such as myonectin, secreted by muscle, are emerging regulators of systemic health. This study investigated the relationship between serum myonectin, adipokines (adiponectin, omentin), and ...
Kenichi Kono   +7 more
wiley   +1 more source

A few methods for fitting circles to data [PDF]

open access: yesIEEE Transactions on Instrumentation and Measurement, 2003
Five methods are discussed to fit circles to data. Two of the methods are shown to be highly sensitive to measurement error. The other three are shown to be quite stable in this regard. Of the stable methods, two have the advantage of having closed form solutions.
Dale Umbach, Kerry N. Jones
openaire   +1 more source

Comparative Evaluation of Hemodiafiltration, Hemoperfusion, and Standard Hemodialysis on Efficacy, Inflammatory Control, Dialysis Adequacy, and Safety in End‐Stage Renal Disease: A Prospective Observational Study

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Chronic micro‐inflammation in patients with end‐stage renal disease (ESRD) is a significant driver of cardiovascular complications and diminished quality of life. While standard hemodialysis (SHD) effectively manages small‐molecule clearance, its ability to remove medium‐to‐large uremic toxins—the primary catalysts of systemic ...
Hongwei Zuo   +5 more
wiley   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

open access: yesFEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa   +5 more
wiley   +1 more source

A Circle Without a Circle: Ehrenfried Walther von Tschirnhaus’s Natural Scientific Method

open access: yesJournal of Modern Philosophy
In his Medicina mentis (1686/87; 2nd ed. 1695), Ehrenfried Walther von Tschirnhaus claims to have found an ‘intermediary path’ between a priori and a posteriori methods in natural philosophy—a three-step method of introspection, deduction, and ...
Mogens Laerke
doaj   +2 more sources

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