Results 121 to 130 of about 24,718,058 (326)

Identifying the Barriers to Iran’s Saffron Export by Using Porter’s Diamond Model

open access: yes, 2012
Saffron is an important export product of Iran. Saffron role as an agricultural export product is now obvious worldwide. It is important to identify the barriers to Iran’s Saffron export in order to maintain Iran’s position as the world’s biggest ...
S. F. A. Aghdaie   +2 more
semanticscholar   +1 more source

Enhanced Gamma Radiation Shielding Using Epoxy Quartz Fabric Composites Reinforced With CoCl2 Microparticles

open access: yesAdvanced Engineering Materials, EarlyView.
The growing demand for lightweight, nontoxic, and multifunctional gamma shielding materials has intensified efforts to find alternatives to conventional lead and aluminum‐based protectants. In this work, we develop epoxy quartz fabric composites reinforced with cobalt chloride (CoCl2) microparticles, fabricated via hand lay‐up with varying filler ...
Summan Urooge   +7 more
wiley   +1 more source

Axial collapse behavior of stainless steel circular tubes with thin walls in diamond mode

open access: yesScientific Reports
As a commonly used axial crushing energy-absorbing component, the theoretical model of the diamond mode of thin-walled circular tubes is less successful than the ring mode.
Xiwu Zhou   +3 more
doaj   +1 more source

Reduction of Oxide Inclusions During the High‐Frequency Welding of Steel via a Nonthermal Ar/H2 Plasma Jet

open access: yesAdvanced Engineering Materials, EarlyView.
High‐frequency (HF) welding of steel is limited by oxide inclusions that degrade weld quality. This study demonstrates, for the first time, the integration of a nonthermal Ar/H2 dielectric barrier discharge (DBD) plasma jet into HF welding. Local plasma treatment provides effective shielding and in‐situ oxide reduction, resulting in markedly fewer and ...
Viktor Udachin   +4 more
wiley   +1 more source

Piezoresistive Monitoring of Carbon Nanomaterial‐Reinforced Epoxy Composites Under Cyclic and Fatigue Loading: A Review

open access: yesAdvanced Engineering Materials, EarlyView.
Carbon nanomaterial‐reinforced epoxy composites exhibit pronounced piezoresistive behavior, enabling intrinsic damage sensing under cyclic and fatigue loading. This review critically compares carbon nanotube and graphene systems, correlating filler content, percolation threshold, and gauge factor with sensing stability and damage evolution.
J. M. Parente   +3 more
wiley   +1 more source

Diamond particle clarity detection method based on CBAM-ResNet50

open access: yesJin'gangshi yu moliao moju gongcheng
Objectives: With the improvement of production technology, the traditional diamond particle cleanliness detection method can no longer meet the requirements of high precision, high quality and high automation in the diamond industry due to its low ...
Wenqian FEI   +3 more
doaj   +1 more source

EXPERIMENTAL RESEARCH ON DIAMOND WHEEL DRESSING BASED ON DYNAMIC MODEL

open access: yesJixie qiangdu, 2022
To reduce the vibration of the diamond roller shaft during the dressing process through the experimental study of the diamond roller dressing process to improve the grinding wheel morphology and subsequent grinding surface quality. Firstly, the vibration
CHI YuLun, TAN ShaoDong, GU JiaJian
doaj  

Slow ground motion modelling of diamond [PDF]

open access: yesProceedings of the 2003 Bipolar/BiCMOS Circuits and Technology Meeting (IEEE Cat. No.03CH37440), 2004
The need for high stability in third generation light sources has produced strict requirements on the design of the foundations. The specification for the concrete floor stability is a critical task, which can have a major cost impact. A careful assessment of the effects of slow ground motion on the accelerator is therefore required.
openaire   +1 more source

Guessing models and generalized Laver diamond [PDF]

open access: yesAnnals of Pure and Applied Logic, 2012
We analyze the notion of guessing model, a way to assign combinatorial properties to arbitrary regular cardinals. Guessing models can be used, in combination with inaccessibility, to characterize various large cardinals axioms, ranging from supercompactness to rank-to-rank embeddings.
openaire   +2 more sources

International Competitive Advantage of Turkish Tourism Industry: A Comperative Analyse of Turkey and Spain By Using The Diamond Model of M. Porter

open access: yes, 2012
In this study it is aimed to identify the differences of Turkish and Spanish Tourism Industries by using the Diamond Model of M. Porter to explain the indicators of different performance of two countries, in the competition of world tourism market.

semanticscholar   +1 more source

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