Results 11 to 20 of about 159,648 (220)

A comparison between various two-variable regression methods in order to estimate soil components using satellite data Case study: Abarkooh playa, Yazd [PDF]

جغرافیا و آمایش شهری منطقه‌ای, 2014
The study of relationship between various soil parameters and satellite data is an effective step in the identification and separation of desert facies.  To do so, this study  aim to study two-variable regression methods based on different relationships ...
Dr. Reza Ghezavi, Zohre Ebrahimi Khusfi, Dr. Mohammad Reza Ekhtesasi, Dr. Seyed Zeynolabedin Hosseini, Mohsen Ebrahimi Khusfi, Dr. Mohammad Hasanzadeh nafooti   +5 more
doaj   +1 more source

Dual Transformation of Auxiliary Variables by Using Outliers in Stratified Random Sampling

Mathematics
To estimate the finite population variance of the study variable, this paper proposes an improved class of efficient estimators using different transformations. When both the minimum and maximum values of the auxiliary variable are known and the ranks of
Mohammed Ahmed Alomair, Umer Daraz
doaj   +1 more source

Improved Randomized Response in Optional Scrambling Models

Journal of Statistical Theory and Applications (JSTA), 2019
In the present study, we discuss the issue of increasing the respondents cooperation in sensitive surveys. When the question is highly sensitive then the cooperation from the respondents is decreased.
Zawar Hussain, Muhammad Imran Shahid
doaj   +1 more source

Efficiency of the Ethiopian Health Extension Program: An Application of Data Envelopment Analysis [PDF]

Eurasian Journal of Business and Economics, 2017
This study aims at evaluating the relative technical efficiency and productivity of the Ethiopian rural health extension program, with an emphasis on rural health posts, using Data Envelopment Analysis and the Malmquist index for data obtained from ...
Yibrah Hagos GEBRESILASSIE, Phocenah NYATANGA   +1 more
doaj   +1 more source

Neutrosophic regression type estimator for the finite population mean and its applications in real data scenarios

Frontiers in Applied Mathematics and Statistics
Research under classical statistics often relies on precise, determinate data to estimate population parameters. However, in certain situations, data may be indeterminate or imprecise.
Neha Purwar, Kaustav Aditya, B, Pankaj Das, Tauqueer Ahmad   +4 more
doaj   +1 more source

Optimizing Finite Population Mean Estimation Using Simulation and Empirical Data

Mathematics
Two-phase sampling is an effective sampling approach that is useful in sample surveys when prior auxiliary information is not available. When two variables have an association, the ranks of the auxiliary variable are proportional to the study variable ...
Abdulaziz S. Alghamdi, Fatimah A. Almulhim   +1 more
doaj   +1 more source

Assessment of TiO2/ZnO/H2O2 Photocatalyst to treat wastewater from oil refinery within visible light circumstances

South African Journal of Chemical Engineering, 2021
This study examined the use of the ZnO/TiO2/H2O2 process in suspension mode under visible light (VL) (1000 W/m2) to reduce TOC from the real petroleum wastewater in Sohar Refinery Company (SRC).
Dheeaa al deen Atallah Aljuboury, Feroz Shaik   +1 more
doaj   +1 more source

A Study on the Theory of Constraints Application in Improving Patient Flow in Specific Treatment Centres

مدیریت اطلاعات سلامت, 2017
Introduction: Theory of constraints is a managerial view which aims at increasing the system efficiency by identifying constraint processes. Present study aimed to apply the theory of constraint in scheduling system of a healthcare facility in order to ...
Hasan Zalaghi, Mahdi Khazaei
doaj   +1 more source

Optimizing population mean estimation under ranked set sampling with applications to Engineering

Results in Engineering
This article aims to develop two novel mean estimators of finite populations under ranked set sampling. The suggested estimators result in a high-efficiency gain due to their efficient formulation by taking the linear combination of classical estimators ...
Muhammad Eisa, Muhammad Iqbal, Hameed Ali, Zafar Mahmood, Sami Znaidia   +4 more
doaj   +1 more source

Effects of the Fluid Replacement Method During Online Hemodiafiltration on the Solute Removal Performance and Biocompatibility Using the Asymmetric Cellulose Triacetate Membrane

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Pre‐dilution online hemodiafiltration (Pre‐HDF) is predominantly used in Japan, whereas post‐dilution online HDF (Post‐HDF) is more common in Europe. An asymmetric cellulose triacetate (ATA) membrane may improve biocompatibility.
Kenji Sakurai, Yoshitaka Kurihara, Fumi Yamauchi, Hiromi Hosoya, Takeshi Saito   +4 more
wiley   +1 more source