Forming gas的問題，透過圖書和論文來找解法和答案更準確安心。 我們找到下列問答集和資訊懶人包

The Formation and Early Evolution of Star Clusters

為了解決Forming gas的問題，作者 這樣論述：

In the past decade, our picture of star and cluster formation has changed hugely and we now believe that many -- if not most -- stars form in clusters, and the process of star and cluster formation is extremely rapid and dynamic. This book provides an overview of our current understanding of the

formation and evolution of star clusters and it covers our understanding of how gas turns into stars and the structure and kinematics of very young star forming regions. The authors then describe how we think these young star forming regions evolve into clusters before destroying themselves. Finally

, the book demonstrates our current understanding of young clusters in external galaxies, especially starbursts, and how these populations could evolve into globular cluster systems.

Engineering Materials for Stem Cell Regeneration

為了解決Forming gas的問題，作者 這樣論述：

Dr. Faheem A. Sheikh is an Assistant Professor at the Department of Nanotechnology, University of Kashmir, India. He served as an Assistant Professor at the Department of Biotechnology at the Central University of Kashmir, India (2015-2016); Research Professor at the Nano-Bio Regenerative Medical In

stitute, Myongji University, South Korea (2014-2015); Assistant Professor at Hallym University, South Korea (2002-2014); Post-Doc/Research fellow at the University of Texas Rio Grande Valley, Texas, United States of America (2010-2012) and Research Professor at Myongji University, South Korea (2010)

. His research mainly focuses on fabricating nanomaterials used in tissue engineering.Currently, he is heading a lab, which works on creating different nanomaterials that can be used in various biological applications; this includes cell culturing and microbial assays. He has considerable expertise

in the fabrication of polymeric, ceramic, and metal oxide nanofibers using electrospinning, as well as the production of porous scaffolds by solvent casting, salt-leaching, 3D printing, gas forming, sol-gel synthesis, phase separation, freeze-drying, and particulate leaching and self-assembly for ha

rd and soft tissue engineering. He believes that we will always need new and intelligent materials to address the different challenges faced in tissue engineering science. He has more than 15 years of research experience in nanotechnology, focusing on tissue engineering and drug delivery. He has pub

lished more than 100 peer-reviewed articles and book chapters.

低密度 PMMA 奈米泡材的製備和表徵

為了解決Forming gas的問題，作者Nigus Maregu Demewoz 這樣論述：

摘要由於其優異的性能，奈米泡材是一種有前景的新材料。本研究使用批式發泡來製造以 CO2 作為發泡劑的低密度奈米多孔泡材。低密度奈米多孔泡材是高性能隔熱的絕佳選擇。然而，製造低密度奈米多孔泡材非常具有挑戰性。降低奈米孔泡材密度的一種方法是引入微米泡孔並製造雙峰泡材結構。目前已知雙峰泡孔結構可提供獨特的物理特性並有助於降低相對密度。本研究提出了一種通過混合不同分子量的 PMMA 來創建雙峰微泡孔/奈米泡孔結構的簡單方法。將微型氣泡引入均勻的奈米孔結構可能是降低泡材密度的一種方法，並且可能不會影響某些特性。除了雙峰結構之外，還觀察到從超微孔結構到奈米孔結構的轉變，從閉孔結構到開孔結構。這些轉變可能

與非纏結 PMMA 含量的弛豫時間和重量百分比有關。雙峰奈米孔或開孔結構的形成可以通過粘彈性特性，例如弛豫時間來預測。降低奈米孔泡材密度的另一種方法是使用高效成核劑增加孔密度並降低支柱分數。在本研究中，將聚甲基丙烯酸甲酯 (PMMA) 與三種不同硬度的熱塑性聚氨酯 (TPU) 混合，以研究 TPU 對奈米孔結構和泡材密度的影響。 TPU 的黏度控制了共混物的奈米結構。將 2 wt% TPU 與 PMMA 混合產生了一個分散良好的體系，最小的 TPU 粒徑小於 100 nm。 CO2 吹製的奈米孔泡材具有新的花束狀結構，孔密度為 1016 cells/cm3。這些 TPU 奈米粒子的成和效率可高

達 3674 倍。成核效率的意外增加可能是由於 TPU 顆粒分散良好。如此高的成核效率產生了開孔結構，其中支柱體積的比例降低並顯著降低了泡材密度。我們可以製造出相對密度小於 0.2 且平均孔徑小於 100 nm的奈米孔泡材。在 PMMA 中添加 2 wt% 的 TPU 可使相對密度降低 32.26%，從 0.31 到 0.18。