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Preparation of Dashanzha Wan by three-dimensional printing

Journal of Traditional Chinese Medical Sciences 2023年第1期10卷 52-57页

作者： Fengyuan Qin Zifan Ding Cong Yan School of Life Science Beijing University of Chinese MedicineBeijing 102488China

Objective:To use three-dimensional(3D)printing technology to prepare Dashanzha ***:The standard formula proportion of Dashanzha Wan was used to prepare printable materials(normally called the ink)for 3D printing,and different doses and shapes of Dashanzha Wan were ***,the rheological properties,texture characteristics,scanning electron microscopy,and content of ursolic acid were ***:Dashanzha Wan ink showed good shear thinning properties,which is very suitable for 3D *** printed sample had a beautiful and regular shape with high ***,ursolic acid content in 3D-printed Dashanzha Wan aligned with the ursolic acid content shown in the Pharmacopoeia of the People's Republic of China ***:The 3D-printed Dashanzha Wan has a better texture,and can be shaped into various shapes according to individual needs,which would increase patients’interest when taking ***,3D printing of Dashanzha Wan could be easily integrated into the digital life system,enabling online customization or use at *** study reveals that 3D printing technology is a promising method for the production of traditional Chinese medicine with personalized appearance,dosage,and texture,which is suitable for a broader population.

关键词： Three-dimensional printing Dashanzha Wan Customized appearance Rheological properties textural analysis Microstructure observation Ursolic acid Preparation process

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Chemical, physical, thermal, textural and mineralogical studies of natural iron ores from Odisha and Chhattisgarh regions, India

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Journal of Central South University 2018年第12期25卷 2857-2870页

作者： Anand Babu KOTTA Swapan Kumar KARAK Mithilesh KUMAR Department of Metallurgical and Materials Engineering National Institute of Technology

The chemical,physical,thermal and texture properties of iron ores from different regions of Odisha and Chhattisgarh regions,India,have been investigated to understand the compositional variations of Fe,Al2O3,SiO2,S and *** were analyzed for its susceptibility to meet the industrial requirements,for various iron manufacture *** analysis indicated that the majority of the iron ores is rich in hematite(>90wt%),poor in gangue(analysis were performed to assimilate the analysis *** was found that these iron ores exhibit three endothermic reactions,which are dehydration below447K with mass loss of0.13wt%to1.7wt%,dehydroxylation at525–609K with mass loss of1.09wt%–4.49wt%and decomposition of aluminosilicates at597–850K with mass loss of0.13wt%–1.15wt%.From this study,we can conclude that due to its excellent physico-chemical characteristics,these iron ores are suitable for BF and DRI operations.

关键词： iron ore chemical analysis mineralogy analysis thermal analysis textural analysis

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textural Characteristics and Depositional Environment of a Late Quaternary Alluvial Plain of Haryana

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Open Journal of Geology 2022年第11期12卷 870-882页

作者： Tarasha Chitkara O. P. Thakur Anupam Sharma Department of Geology Kurukshetra University Kurukshetra Haryana India Birbal Sahni Institute of Palaeosciences Lucknow Uttar Pradesh India

The present study deals with the textural characteristics of the sediments from the exposed palaeochannel situated at Dhyangla village near Ladwa, district of Kurukshetra in north-western Haryana. It is a part of vast alluvial plains of India. Samples were taken from a 3 m thick exposed section. Grain size distribution and Palynofacies analyses of these sediments were carried out to study their textural parameters and the organic matter content respectively. Sediments are mostly fine to medium grained sand with silt percentage increasing upwards in the section. These sediments are mostly unimodal showing the grain size population controlled by a single type of grain size, mostly sand. Further the sand samples are moderately well sorted and mesokurtic in nature. Samples with silt are poorly sorted and leptokurtic with positive skewness, denoting those sediments have already sorted elsewhere in the high energy environment and are now transported and modified by the low energy environment. Palynofacies analysis also shows the presence of amorphous particles in the silt samples which indicate low energy environment of the sequence while presence of black debris in the sand samples indicates high energy depositions environment.

关键词： Alluvial Plains Palaeoenvironment Palynofacies textural analysis

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