Results 1 to 10 of about 1,829,280 (224)

Dental dams in dermatology: An underutilized barrier method of protection [PDF]

open access: yesInternational Journal of Women's Dermatology, 2022
Dental dams are a barrier method of protection, which may help prevent the spread of sexually transmitted infections during oral-vaginal or oral-anal sex. Despite their relative simplicity of use, data on dental dams are limited and patients infrequently
Daniel Gutierrez, MD   +3 more
doaj   +2 more sources

Barrier subgradient method [PDF]

open access: yesMathematical Programming, 2010
In this paper we develop a new primal-dual subgradient method for nonsmooth convex optimization problems. This scheme is based on a self-concordant barrier for the basic feasible set. It is suitable for finding approximate solutions with certain relative
NESTEROV, Y.
core   +4 more sources

Self-Scaling Variable Metric in Constrained Optimization [PDF]

open access: yesAl-Rafidain Journal of Computer Sciences and Mathematics, 2020
In this paper, we investigated of a new self-scaling by use quasi-Newton method and conjugate gradient method. The new algorithm satisfies a quasi-newton condition and mutually conjugate, and practically proved its efficiency when compared with the well ...
Eman Hamed, Marwa Hamad
doaj   +1 more source

Trust-Region Based Penalty Barrier Algorithm for Constrained Nonlinear Programming Problems: An Application of Design of Minimum Cost Canal Sections

open access: yesMathematics, 2021
In this paper, a penalty method is used together with a barrier method to transform a constrained nonlinear programming problem into an unconstrained nonlinear programming problem.
Bothina El-Sobky   +3 more
doaj   +1 more source

Barrier methods of contraception

open access: yesJournal of Obstetrics and Gynaecology, 1985
This general discussion of the value of barrier methods of contraception makes several points in the context of the British health care system. The physician should aid the couple in making an informed decision by listening. He should not let his opinions interfere for example by dissuading a man from using a condom.
P. Senanayake, K. Newman
  +7 more sources

Modification of Non-Linear Constrained Optimization [PDF]

open access: yesAl-Rafidain Journal of Computer Sciences and Mathematics, 2004
In this paper we have investigated a new initial parameter, the new parameter is to make balance between interior suitable for inequality constrained exterior method (suitable for equality and inequality constrained) for non-linear constrained ...
Ban Mitras
doaj   +1 more source

New Initial Parameter for the Constrained Optimization Method [PDF]

open access: yesAl-Rafidain Journal of Computer Sciences and Mathematics, 2006
In this paper, we have investigated a new initial parameter in the nonlinear constrained optimization method. The aim of this new method is to make a balance between interior and exterior method for constrained optimization.
Abbas Al-Bayati, Ban Mitras
doaj   +1 more source

Stability Analysis of the Inclined Capillary Barrier Covers under Rainfall Condition

open access: yesBuildings, 2022
Capillary barrier covers consist of fine-grained soil layer overlying coarse-grained soil layer, which are widely used as surface covers for mine tailings, solid waste landfills, and low-level radioactive waste repositories.
Cen Gao, Yueming Zhu, Yawei Zhang
doaj   +1 more source

The Research of Influence of the Barrier Transition Parameters Determination Methods on their Accuracy [PDF]

open access: yesЖурнал нано- та електронної фізики, 2017
The accuracy of the main qualitative barrier transitions characteristics (barrier height пЃЄb and nonideality factor О·) depends on the accuracy of the measurement as the current and voltage as their determination method.
V.S.В Dmitriev
doaj   +1 more source

Method of Acoustic Calculation of Traffic Noise Barriers [PDF]

open access: yesMATEC Web of Conferences, 2020
Installation of noise barriers is an efficient and relatively cheap way of protecting residential areas from traffic noise. This paper proposes a comprehensive method of calculation of noise barriers.
Dudiev Tikhon, Tupov Vladimir
doaj   +1 more source

Home - About - Disclaimer - Privacy