Results 111 to 120 of about 786,734 (312)

Changes in feeding biology of Nile tilapia, Oreochromis niloticus (L.), after invasion of water hyacinth, Eichhornia crassipes (Mart.) Solms, in Lake Victoria, Kenya [PDF]

open access: yes, 1999
Oreochrimis niloticus (L.) was introduced to Lake victoria in the 1950s. It remained relatively uncommon in catches until 1965, when the numbers began to increase dramatically.
Njiru, M.
core  

Removing Oxide Layers and Retaining Oxide‐Free Steel Surfaces by Polishing in Oxygen‐Free Atmosphere

open access: yesAdvanced Engineering Materials, EarlyView.
In this study, the efficacy of wet mechanical polishing under an oxygen‐free atmosphere for deoxidation and the retention of an oxide‐free steel surface are elucidated using X‐ray photoelectron spectroscopy. The methodology proved successful; however, the results were highly dependent on the preparation of the solvents used to clean the samples after ...
Friedrich Bürger   +2 more
wiley   +1 more source

Size-related Hooking Mortality of Incidentally Caught Chinook Salmon, Oncorhynchus tshawytscha [PDF]

open access: yes, 1989
Mortality associated with the incidental catch and release by commercial trollers of two size classes of chinook salmon, Oncorhynchus tshawytscha, was assessed. Observed cumulative mortality 4-6 days after hooking was 18.3 percent for sublegal-sizefish «
Celewycz, Adrian   +3 more
core  

Creep Properties and Deformation Mechanism of Additively Manufactured NiAl‐CrMo Composites

open access: yesAdvanced Engineering Materials, EarlyView.
Additively manufactured NiAl‐CrMo composites contain numerous interfaces and cell boundaries that control their creep response. At 700°C under high applied stress, creep is dominated by dislocation‐controlled power‐law mechanisms. At 800°C–900°C and lower stresses, creep is primarily diffusion‐controlled along cell boundaries.
Jan Vollhüter   +9 more
wiley   +1 more source

Assessment of Production Metrics of Meagre (Argyrosomus regius) in Semi-Intensive Earthen Pond Systems Under Commercial Conditions

open access: yesTurkish Journal of Agriculture: Food Science and Technology
The aim of this study is to investigate the production success of meagre fish under commercial conditions in earthen pond fish farm and to explore its production potential at an international scale. Global production records of meagre fish were obtained
Rifat Tezel
doaj   +1 more source

Description of economic data collected with a random sample of commercial reef fish boats in the Florida Keys [PDF]

open access: yes, 2001
This study summarizes the results of a survey designed to provide economic information about the financial status of commercial reef fish boats with homeports in the Florida Keys.
Rhodes, Raymond J.   +2 more
core  

Direct Metal Deposition of Graphene–Ti28Nb35.4Zr Matrix Composites With Enhanced Mechanical, Corrosion, and Biocompatibility Properties for Bone Implants

open access: yesAdvanced Engineering Materials, EarlyView.
Graphene nanoplatelet (0.1 wt.%) reinforcement significantly enhances the performance of β Ti‐28Nb‐35.4Zr alloy. Grain refinement, reduced water contact angle, and improved surface characteristics promote osteoblast adhesion and complete surface coverage after 7 days.
Khurram Munir   +5 more
wiley   +1 more source

Commercial Fish Oil

open access: yes, 2002
Ham ticari balık yağı gaz-likit kromatografısi ile kalitatif ve kantitatif olarak analiz edildi. Saptanan başlıca yağ asidieri %24.8 stearik, %9.84 palmitik, %6.56 miristik, %6.56 oktadekatetraenoik asidlerdir. Ham ticari balık yağının fiziksel ve kimyasal özellikleri incelenmiş , bazı koku giderme metodları uygulanmış ve sonuçlar tartışılmıştır.
openaire   +2 more sources

In Situ Micromechanical Study of Bimodal γ′–γ″ Precipitate Assemblies in Ni–Cr–Al–Nb Superalloy

open access: yesAdvanced Engineering Materials, EarlyView.
A Ni–Cr–Al–Nb superalloy with a bimodal γ′–γ″ precipitate distribution is developed. Composite precipitate assemblies form through heterogeneous nucleation, effectively impeding dislocation motion. Micropillar compression reveals high strength at room and elevated temperatures, governed by precipitate shearing, with coupled faulting mechanisms ...
Ujjval Bansal   +4 more
wiley   +1 more source

Commercial fish genomics: A bibliometric and visualized study

open access: yesReproduction and Breeding
Bibliometric analysis is a scientific computer-assisted review methodology that can visualize the knowledge base and associated trends and patterns in a given topic or scientific field based on a quantitative review of the corresponding literature.
Yan Wang   +4 more
doaj   +1 more source

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