کاربرد یک آلگوریتم کاهش مدل در استخراج مشخصه جهت ارزیابی عملکرد دینامیکی سکوی جکتی فراساحلی در شرایط نقصان داده های مودال

ارزیابی یک الگوریتم استخراج مشخصه جهت عیب‌یابی سازه جکتی فراساحلی با استفاده از مدل فیزیکی و بروزرسانی مدل المان محدود

One of the most important items in the field of engineering and design of structures is safety assessment. It is usually complicated, due to uncertainty in determining the most important parameters in the final design. This paper describes a new method for updating stiffness matrix structure that is capable of identifying the damage to individual members, when limited modal data is available by...

به‌روزرسانی مدل المان محدود سکوی جکتی فراساحلی با استفاده از آنالیز مودال تجربی

An important requirement in design is to be able to compare experimental results from prototype structures with predicted results from a corresponding finite element model. In this context, updating the model using measured vibration test can lead to proposing a desired finite element model. Therefore, this paper presents indirect and direct based numerical updating study of a reduced scale fou...

اثر بربرین در تنظیم آستروسیتهای Gfap+ ناحیه هیپوکمپ موشهای صحرایی دیابتی شده با استرپتوزوتوسین

Background: Diabetes mellitus increases the risk of central nervous system (CNS) disorders such as stroke, seizures, dementia, and cognitive impairment. Berberine, a natural isoquinolne alkaloid, is reported to exhibit beneficial effect in various neurodegenerative and neuropsychiatric disorders. Moreover astrocytes are proving critical for normal CNS function, and alterations in their activity...

اثر بربرین در تنظیم آستروسیتهای Gfap+ ناحیه هیپوکمپ موشهای صحرایی دیابتی شده با استرپتوزوتوسین

Background: Diabetes mellitus increases the risk of central nervous system (CNS) disorders such as stroke, seizures, dementia, and cognitive impairment. Berberine, a natural isoquinolne alkaloid, is reported to exhibit beneficial effect in various neurodegenerative and neuropsychiatric disorders. Moreover astrocytes are proving critical for normal CNS function, and alterations in their activity...

ارزیابی کیفی عملکرد تهویه موضعی در آزمایشگاه های یک شرکت پتروشیمی جهت کاهش مواجهه کارکنان

  Background & Objectives : Chemicals are serious harmful agents in the workplace, especially chemistry labs. This material may cause poisoning and different diseases. Laboratory hoods as first safety device protect laboratory workers against hazardous chemicals. This research conducted on chemistry labs in a petrochemical company for awareness of the hoods performance and proposed the nee...

مدل MEA در ارزیابی عملکرد با داده های منفی