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سلولهای مخروطی یا مخروطها، یکی از سه نوع سلولهای فتوگرامتر (photoreceptor)شبکیه چشم پستانداران میباشند (به عنوان نمونه چشم انسان). وظیفه این سلولها - برخلاف سلولهای استوانهای که در نور کم کارایی بهتری دارند – دید رنگی و عملکرد بهتر در نور نسبتاً درخشان است. این یاختهها به صورت فشردهای در گودهٔ مرکزی (fovea centralis) بستهبندی شدهاند؛ منطقهای به قطر ۰٫۳ میلیمتر خالی از سلول میلهای با مخروطیهایی با ضخامت بسیار کم و فشرده بستهبندی شده که با پیشروی به سمت محدوده شبکیه چشم به سرعت از تعدادشان کاست…
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Iranian Journal of Biomedical Engineering 10 (2) (2016) 123-136, DOI: 10.22041/IJBME.2017.55758.1175 Modelling of Sandwich-Type Amperometric Micro-Biosensor with Perforated Membrane A. Noghrehabadi1*, M.H. Heidarshenas2, R. Bahoosh3 1 Associate Professor, Department of Mechanical Engineering, Engineering …
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