Results 111 to 120 of about 3,041,653 (403)

Copper cable theft: revisiting the price–theft hypothesis [PDF]

open access: yes, 2014
Objectives: To test the commonly espoused but little examined hypothesis that fluctuations in the price of metal are associated with changes in the volume of metal theft.
Bennett L.   +5 more
core   +1 more source

Investigating the Effects of Build Height on Mechanical Behavior of Large‐Scale Laser Wire Directed Energy Deposited Nickel Titanium Alloy

open access: yesAdvanced Engineering Materials, EarlyView.
Laser wire directed energy deposition process was leveraged to fabricate large scale NiTi alloy wall. Evaluation of build‐height‐dependent tribo‐mechanical properties revealed significant differences in location specific sample characteristics. The middle region achieved optimal performance (superior wear resistance, balanced strength‐ductility ...
Hyunsuk Choi   +5 more
wiley   +1 more source

KMD Series Copper Depressant for the Separation of Copper and Molybdenum in the Jiangxi Dexing Copper Mine

open access: yesKuangchan zonghe liyong
The copper-molybdenum separation system of a large-scale porphyry copper mine in Jiangxi has the problems of large amount of sodium sulfide, high COD content in the separation flotation backwater, and it is difficult to reuse and treat.
Guiquan CHEN   +5 more
doaj   +1 more source

Zinc and Copper Levels in Patients with Primary Hypertension and Normotension [PDF]

open access: yes, 2015
One of the causes of primary hypertension is an exposure to free radicals. The formation of free radicals in the body can be prevented by taking antioxidants. Zinc and copper are cofactors of endogenous antioxidant enzyme superoxide dismutase. This study
Adriani, M. (Merryana)   +2 more
core  

Control of Bactrocera oleae and Ceratitis capitata in Organic Orchards: Use of Clays and Copper Products. [PDF]

open access: yes, 2010
Tests on the effect of clays (kaolin and bentonite) and copper products (hydroxide and oxychloride) in the control of olive fruit fly, Bactrocera oleae (Rossi), and Mediterranean fruit fly, Ceratitis capitata (Wiedemann), were carried out from 2003 to ...
Caleca, Virgilio   +4 more
core   +1 more source

Critical Review of Exposure and Effects: Implications for Setting Regulatory Health Criteria for Ingested Copper

open access: yesEnvironmental Management, 2019
Decades of study indicate that copper oral exposures are typically not a human health concern. Ingesting high levels of soluble copper salts can cause acute gastrointestinal symptoms and, in uncommon cases, liver toxicity in susceptible individuals with ...
Alicia A. Taylor   +6 more
semanticscholar   +1 more source

Recent Advancements in Bulk Processing of Rare‐Earth‐Free Hard Magnetic Materials and Related Multiscale Simulations

open access: yesAdvanced Engineering Materials, EarlyView.
This article provides an overview of recent advancements in bulk processing of rare‐earth‐free hard magnetic materials. It also addresses related simulation approaches at different scales. The research on rare‐earth‐free magnetic materials has increased significantly in recent years, driven by supply chain issues, environmental and social concerns, and
Daniel Scheiber, Andrea Bachmaier
wiley   +1 more source

Reversible Copper Sulfide Conversion in Nonflammable Trimethyl Phosphate Electrolytes for Safe Sodium‐Ion Batteries [PDF]

open access: hybrid, 2021
Huihua Li   +7 more
openalex   +1 more source

Challenges during Flash Lamp Annealing of Aerosol‐Deposited Barium Titanate Films

open access: yesAdvanced Engineering Materials, EarlyView.
Aerosol deposition is used to rapidly deposit barium titanate films with thicknesses ranging from 2 to 16 μm at room temperature, eliminating the need for further densification. However, to recover the electromechanical properties, annealing is required, which limits the usage of temperature‐sensitive substrates.
Michel Kuhfuß   +7 more
wiley   +1 more source

Friction and wear of selected metals and alloys in sliding contact with AISI 440 C stainless steel in liquid methane and in liquid natural gas [PDF]

open access: yes
Aluminum, titanium, beryllium, nickel, iron, copper, and several copper alloys were run in sliding contact with AISI 440C in liquid methane and natural gas.
Wisander, D. W.
core   +1 more source

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