Results 51 to 60 of about 209 (118)

DEGRADACIÓN QUÍMICA DEL POLI(ETILEN TEREFTALATO)

open access: yesRevista Colombiana de Química, 2011
En este trabajo se analizó la degradación del poli(etilen tereftalato) variando la temperatura y la concentración de hidróxido de potasio en 1-butanol, manteniendo constante el tamaño y peso de la muestra.
Aurelio Ramírez   +2 more
doaj  

Use of prokinetics and other quality factors in capsule endoscopy - old and new insights (Review). [PDF]

open access: yesExp Ther Med, 2020
Costache RS   +5 more
europepmc   +1 more source

The treatment of stemed knee endoprotheses complications

open access: yesActa Orthopaedica et Traumatologica Turcica
The construction of the polyethylene part of Sheehan’s total knee endoprothesis provides advantages Iik shock absorbation in several levels. The advantage is a very low rate of aseptic loosening.
R. Widhalm, J. Krugluger, G. Hofer
doaj  

Pendugaan Umur Simpan Susu Kambing Etawa Kolostrum Bubuk Menggunakan Metode Accelerated Shelf Life Testing (ASLT) dengan, Pendekatan Kadar Air Kritis

open access: yesJurnal Keteknikan Pertanian Tropis dan Biosistem
Lamanya waktu product makanan aman untuk dikonsumsi adalah detail penting yang harus dinyatakan dengan jelas pada label kemasan. Susu bubuk rentan terhadap degradasi oksigen dan uap air karena sifat higroskopisnya, yang mengakibatkan masalah seperti ...
Dita Ananda Putri   +1 more
doaj   +1 more source

Polietilen/Kil Nanokompozitlerin Hazırlanması ve Karakterizasyonu

open access: yes, 2016
The aim of this study is to produce nanocomposite polyethylene films, which can be especially used in the food packaging industry. In this study the polymer films were consisted of low density polyethylene (LDPE) and linear low density polyethylene (LLDPE) as polymer matrix, montmorillonite modified organoclays as gas permeability filler.
openaire   +2 more sources

Degradación hidrolítica del polietilen-tereftalato (Pet)

open access: yes, 2017
RESUMEN: El uso masivo del polietilen-tereftalato (PET) genera gran cantidad de residuos sólidos; es por ello que se han propuesto diversas maneras para su reciclaje. En el presente trabajo se estudió la degradación hidrolítica de PET reciclado en medio básico, como investigación del curso de Materiales Poliméricos de Ingeniería de Materiales.
Contreras Romero, Elbert Enrique   +4 more
openaire   +1 more source

Polietilen Aşı Kopolimerlerinin Polietilen/kil Nanokompozitlerinin Yapısına Ve Mekanik Özelliklerine Etkisinin İncelenmesi

open access: yes, 2008
Bu çalışmada, polietilenin matris, organokil ve uyumlaştırıcının katkı malzemesi olarak kullanıldığı polimer nanokompozitler (PNK) sentezlenmiştir. Öncelikle uyumlaştırıcı olarak kullanılacak aşı kopolimerleri mikrodalga yöntemi ile sentezlenmiştir. İkinci aşamada kil modifikasyonu yapılmıştır.
openaire   +1 more source

Macroprolactinemia: new insights in hyperprolactinemia. [PDF]

open access: yesBiochem Med (Zagreb), 2012
Kasum M   +6 more
europepmc   +1 more source

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