Results 51 to 60 of about 43,057 (164)

ERRORS IN FITTING RADIAL DOSE FUNCTION OF COBALT SOURCES FOR BRACHYTHERAPY WITH 3-5 DEGREE POLYNOMIALS

Alʹmanah Kliničeskoj Mediciny, 2016
Background: Providing quality insurance for radiation therapy implies high level of precision for determining absorbed dose, and therefore high level of precision for fitting radial dose function.
A. V. Belousov, A. A. Belyanov, A. P. Chernyaev   +2 more
doaj   +1 more source

Attitude Refinement for Orbiting Pushbroom Cameras: a Simple Polynomial Fitting Method

Image Processing On Line, 2015
This paper describes a simple pushbroom camera model for Earth observation satellites and proposes a new algorithm to refine the orientation parameters of a camera from a set of ground control points.
Carlo de Franchis, Enric Meinhardt-Llopis, Daniel Greslou, Gabriele Facciolo   +3 more
doaj   +1 more source

Reconstruction Algorithm of Absorption Spectral Field Distribution Based on a Priori Constrained Bivariate Polynomial Model

Photonics
Computed Tomography–Tunable Diode Laser Absorption Spectroscopy (CT-TDLAS) is an effective diagnostic method for analyzing combustion flow fields within engines.
Chuge Chen, Dingfeng Shi, An Huang, Suman Ai, Rantong Niu, Ting Jiao, Zhenyu Xu   +6 more
doaj   +1 more source

The Effect of the Number of Clinical Bracket Points on the Accuracy of Curve Fitted to Dental Arch Form by 3D Method

Journal of Islamic Dental Association of Iran, 2012
Background and Aim : Adjustment of an accurate curve to the dental arch is an important part of orthodontic treatment. Our goal was comparing the fitting accuracy of two curves constructed by different numbers of clinical bracket points (CBP) to the ...
Mahtab Nouri, Arash Farzan, Mohammad reza Safavi, Ali reza Akbarzadeh Baghban   +3 more
doaj  

Small interval interpolation fitting bootstrapping method based on residue number system

Xibei Gongye Daxue Xuebao
Aiming at the problem that the bootstrapping time of approximate homomorphic encryption scheme is too long, a small interval interpolation fitting method based on residue system is proposed.
LI Huixian, WANG Fulei, SHEN Chun, LIU Shiyuan, PANG Liaojun   +4 more
doaj   +1 more source

Edge detection and mathematic fitting for corneal surface with Matlab software

International Journal of Ophthalmology, 2017
AIM: To select the optimal edge detection methods to identify the corneal surface, and compare three fitting curve equations with Matlab software. METHODS: Fifteen subjects were recruited.
Yue Di, Mei-Yan Li, Tong Qiao, Na Lu
doaj   +1 more source

Multi-charge transfer from photodoped ITO nanocrystals. [PDF]

Nanoscale Adv, 2021
Ghini M, Rubino A, Camellini A, Kriegel I.   +3 more
europepmc   +1 more source

Addressing Calibration Challenges for Large-Stroke Blade Pitch Control in Tiltrotor Aircraft via an Improved Cubic Polynomial Fitting Algorithm

Aerospace
Tiltrotor aircraft, due to their vertical takeoff and landing capability and efficient high-speed cruise performance, are increasingly valuable in both modern military and civilian applications.
Hang Feng, Shangyu Li, Kaicheng Li, Junquan Chen   +3 more
doaj   +1 more source

Reverse Design of Conjugate Cam Mechanism based on Polynomial Fitting Method

Jixie chuandong, 2015
A method of reverse design of conjugate cam is introduced. By using Pro / E with the contour surface data of CAM,the 3- D model is built and kinematics simulation analysis is carried out,the displacement,velocity and acceleration curves of the following ...
Zhang Shuanglin, Ge Zhenghao, Zhang Xingyu, Li Chengping   +3 more
doaj  

GNSS time series analysis of the crustal movement network of China: Detecting the optimal order of the polynomial term and its effect on the deterministic model

Geodesy and Geodynamics
GNSS time series analysis provides an effective method for research on the earth's surface deformation, and it can be divided into two parts, deterministic models and stochastic models.
Shuguang Wu, Hua Ouyang, Houpu Li, Zhao Li, Haiyang Li, Yuefan He   +5 more
doaj   +1 more source