“简”的另一种可能——深装集团办公总部

正如果说极简是一种最本真的表达,那它需要简化到什么程度才算是美而合理?当密斯·凡·德·罗提出提出"Less is More(少即是多)"的时候,大概没想到这个建筑理念后来会给全球设计界带来那么深远的影响,甚至被推崇为一种现代的生活态度。黑白灰的简约风盛行于当下,然而千篇一律的设计不免让人产生审美疲劳。所谓的"少",并非去色而是精简;所谓的     

MAP法+臭氧处理老龄垃圾填埋场渗滤液的实验研究

垃圾渗滤液是一种可生化性差、碳氮比失衡的废水,处理难度大,若不经过严格处理,会对环境造成严重的危害。MAP法在pH=10、n(Mg²⁺):n(NH₄⁺):n(PO₄^3-)为1.3:1:1条件下能够去除垃圾渗滤液中93.75%的氨氮,并且能够去除部分COD,然后采用单因素实验法考察臭氧流量、反应时间、垃圾渗滤液pH以及H₂O₂投加量对垃圾渗滤液处理效果的影响,确定实验的最佳反应条件为：臭氧浓度75 mg/L、臭氧流量0.7 L/min、反应时间20 min、pH为8.9、n(Η₂Ο₂)/n(Ο₃)为0.5,出水水质为COD为543 mg/L、BOD₅为225 mg/L、BOD₅/COD为0.414,、氨氮质量浓度为10.2mg/L、总氮质量浓度为66.5 mg/L。     

Preparation and Characterization of Florfenicol/Chitosan-stearic Acid Polymer Nanomicelle and Its Antibiotic Properties

Amphiphilic CS-SA polymers were prepared using the SA modified by small molecule water-soluble chitosan, and CS-SA nanomicelles and FF/CS-SA nanomicelles were prepared by using CSSA polymers as the material with dialysis-ultrasound method. CS-SA polymers, CS-SA nanomicelles, and FF/CS-SA nanomicelles were characterized by FT-IR, TGA, and SEM. Results showed that the SA was grafted to the amino of CS by amide bond. CS-SA nanomicelles and FF/CS-SA nanomicelles were spherical, smooth without fold. The influence of different molar ratio of FF to CS-SA polymers on the encapsulation efficiency and drug-loading rate determined the best molar ratio that was 1:1.09. In vitro release experiments, drug release performance study found that hydrophobic drug releasing from FF/CS-SA nanomicelles presented sustainedrelease. In vitro bacteriostasis experiments, when the concentration was higher than 4.98 mg/mL, FF/CSSA nanomicelles had antibacterial action and a positive correlation with concentration. The results revealed that amphiphilic chitosan derivative nanomicelles were carriers with broad prospects, increasing solubility of hydrophobic drugs and presenting sustained release for hydrophobic drugs, which provided a new research idea for drug delivery and targeted drug delivery of hydrohobic drugs.