Polymer, Additives, and Processing Effects on N95 Filter Performance
نویسندگان
چکیده
منابع مشابه
the effects of planning on accuracy and complexity of iranian efl students’ written narrative task performance
this study compared the different effects of form-focused guided planning vs. meaning-focused guided planning on iranian pre-intermediate students’ task performance. the study lasted for three weeks and concentrated on eight english structures. forty five pre-intermediate iranian students were randomly assigned to three groups of guided planning focus-on-form group (gpfg), guided planning focus...
15 صفحه اولthe effects of time planning and task complexity on accuracy of narrative task performance
هدف اصلی این تحقیق بررسی تاثیر برنامه ریزی زمانی، هم چنین افزایش میزان پیچیدگی تکالیف در نظر گرفته شده بصورت همزمان، بر دقت و صحت و پیچیدگی عملکرد نوشتاری زبان آموزان می باشد. بدین منظور، 50 نفر از دانش آموزان دختر در رده ی سنی 16 الی 18 سال به عنوان شرکت کنندگان در این زمینه ی تحقیق در نظر گرفته شدند و به دو گروه آزمایشی و کنترل بصورت اتفاقی تقسیم شدند. اعضای گروه آزمایشی هر دو تکلیف ساده و پی...
Advances in Polymer Processing Additives (PPA)
In previous work, flow visualization was used to understand how polymer processing additives (PPA) eliminate sharkskin in linear low-density polyethylene (LLDPE). The PPA migrates to and coats the die wall, induces slippage, and eliminates sharkskin. In this work, the interface between the PPA and LLDPE was further characterized using reflection light microscopy, scanning electron microscopy, e...
متن کاملAssessment of NIOSH-approved N95 filter performance against varying conditions
To: My Family, Friends, and Dr. O', who have picked me up when I needed it the most during these past two tumultuous years. I will never forget what you have done for me. This is dedicated to you. iii ACKNOWLEDGMENTS I would first like to thank my advisor of four and a half years, Dr. Patrick O'Shaughnessy for ensuring that this study could occur, and for supporting me for the entirety of my gr...
متن کاملEffects of Salinity, ph and Temperature on CMC Polymer and XC Polymer Performance (TECHNICAL NOTE)
The rheological and filtration properties of drilling mud under down-hole conditions may be very different from those measured at ambient pressures and temperatures at the surface. This paper presents the results of an experimental investigation into the temperature and salinity and pH effects on drilling mud rheological and filtration properties. Results are given from tests on water base mud ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: ACS Applied Polymer Materials
سال: 2021
ISSN: 2637-6105,2637-6105
DOI: 10.1021/acsapm.0c01294