Zobrazeno 1 - 10
of 31
pro vyhledávání: '"Purba Purnama"'
Autor:
Matlal Fajri Alif, Riska Astin Fitria, Syukri Arief, Shelly Triandini, Maykel Manawan, Purba Purnama, Ronn Goei
Publikováno v:
Sustainable Chemistry for the Environment, Vol 6, Iss , Pp 100105- (2024)
Peatlands covers a vast area globally and used as drinking water source in some parts of Indonesia. Peat water, commonly found in swampy areas, stands out for its striking color intensity, acidic pH levels, and its high affinity for metal binding. De
Externí odkaz:
https://doaj.org/article/c0eb37ce8883432ca6340b8db4db76a8
Publikováno v:
Journal of Composites Science, Vol 8, Iss 8, p 317 (2024)
Polylactide materials present a promising alternative to petroleum-based polymers due to their sustainability and biodegradability, although they have certain limitations in physical and mechanical properties for specific applications. The incorporat
Externí odkaz:
https://doaj.org/article/4f43f301feac49fbb74c5ff9d72b2655
Autor:
Muhammad Samsuri, Purba Purnama
Publikováno v:
Polymers, Vol 15, Iss 12, p 2730 (2023)
This review paper analyzes the development of advanced class polylactide (PLA) materials through a combination of stereocomplexation and nanocomposites approaches. The similarities in these approaches provide the opportunity to generate an advanced s
Externí odkaz:
https://doaj.org/article/e2b52d2e6a9b4dd9a5771c70c73b17aa
Publikováno v:
Polymers, Vol 14, Iss 19, p 4009 (2022)
This review covers the development of eco-friendly, bio-based materials based on polylactide (PLA) and cellulose nanowhiskers (CNWs). As a biodegradable polymer, PLA is one of the promising materials to replace petroleum-based polymers. In the field
Externí odkaz:
https://doaj.org/article/6b6f9925ffbc4c95bf0b7015ff5c3729
Publikováno v:
Polymers, Vol 13, Iss 12, p 2018 (2021)
Stereocomplexation is one of several approaches for improving polylactide (PLA) properties. The high molecular weight of poly L-lactide (PLLA) and poly D-lactide (PDLA) homopolymers are a constraint during the formation of stereocomplex PLAs (s-PLAs)
Externí odkaz:
https://doaj.org/article/aceeb31293e544d89dcc2a741e03a11c
Publikováno v:
Polymers, Vol 13, Iss 11, p 1725 (2021)
As one of the most attractive biopolymers nowadays in terms of their sustainability, degradability, and material tune-ability, the improvement of polylactide (PLA) homopolymer properties by studying the utilization of stereocomplex polylactide (s-PLA
Externí odkaz:
https://doaj.org/article/d648f26a24d841e6a56eaa57959a6d79
Autor:
Megasari, Megasari, Purba, Purnama Yanti, Putra Lubis, Alprima Abner Daniel, Siregar, Muhammad Munir
Publikováno v:
Jurnal Mantik; Vol. 7 No. 1 (2023): May: Manajemen, Teknologi Informatika dan Komunikasi (Mantik); 366-377
This study aims to explain the effect of training, work climate and work stress on the productivity of DBS bank employees. The phenomenon of decreased employee productivity is characterized by targets not being achieved, ineffective training, excessi
Publikováno v:
Food Science and Technology. 43
Publikováno v:
Sustainability; Volume 14; Issue 7; Pages: 4075
The COVID-19 pandemic has caused educators around the world to access online-learning systems. Applying the online system involves challenges, such as the students’ need to cope with changes in their learning process, where they must develop capabi
Publikováno v:
Jurnal Mantik; Vol. 5 No. 1 (2021): May: Manajemen, Teknologi Informatika dan Komunikasi (Mantik); 394-401
The research aim to test and analyze the effect of price, location, and promotion on purchasing decisions for Sam City Housing in the Mariendal Area, Medan. The phenomenon of declining purchasing decisions, housing prices that are more expensive than