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11.
CHEN Jie YANG Li-ming WU Ming-hong Nho young chang Deportment of Chemical Engineering Technology Shanghai University Shanghai China Radiation Processing Project Korea Atomic Energy Research Institute Taejon - Korea 《上海大学学报(英文版)》2000,(Z1)
l introductionGrafting polytnerization is a valuable method forthe modification of the chemical and physicalProperties of polymer surfaces. It can provide somedesirable Properties such as biocompatibility['],.ion-exchWe['] and thermo-sensitivity['], etc. somemethods have been studied in grafting polymerizstion,for example, ionization irradiation['], ultravioletlight['], plasma, chemical initiators and others[6].Radiation grafting is one of the most Promisingmethods because it can be effective… 相似文献
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张树俊 《四川三峡学院学报》2014,(2):32-36
旅游景观吸引力和旅游产业的发展与文化含量密切相关,增强旅游的文化含量是提升旅游层次的必然要求。泰州水城慢生活旅游的发展与层级的提升所依靠的正是文化的力量。以文化提升旅游层级,要搞好文化资源与旅游项目的嫁接,精心进行活动项目的情境设计、情感激发和节奏控制;要进行旅游深度与景区魅力角色体验设计、文化渗透设计、对应互补设计,努力提高景观吸引力,满足游客多元化需求;要提升旅游品质,增强社会责任,充分发挥旅游文化的“化人”功能,促进旅游事业的持续发展。 相似文献
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以光引发剂二乙基二硫代氨基甲酸钠对硅胶表面进行修饰,以氨基比林为模板分子、甲基丙烯酸为单体、乙二醇二甲基丙烯酸酯为交联剂,在修饰后的硅胶表面接枝共聚制备分子印迹聚合物。利用红外光谱、电镜对聚合物进行了表征,用紫外分光光度法考察了分子印迹聚合物对氨基比林的吸附特性。结果表明,印迹聚合物对模板分子具有较高的吸附能力和选择识别能力。 相似文献
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以广东省茂名市与广西省玉林市、钦州市16个县的186户荔枝种植户实地调研数据为依据,运用Binary regression logistic模型实证研究荔枝种植户采用高接换种技术影响因素,研究发现,荔枝生产年限、土地成本、销售价格、技术实施成本对荔枝种植户采用高接换种技术行为产生显著正向影响。 相似文献
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以甜柿十二倍体试管苗为试材，借助嫩枝嫁接的方法对甜柿试管苗嫁接进行研究，结果表明：嫁接时保持完整根系，切除子叶，接穗削面长度控制在2～3mm，嫁接成活率最高；嫁接培养基采用附加IBA 0．3mg／L＋ZT 0．44mg／L＋AC 3g／L＋蔗糖30g／L的MS（1／2N）固体培养基，有利于嫁接成活． 相似文献
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通过对本地主栽品种、外引品种与茹砧嫁接后进行比较试验，并根据当地消费食用习惯与茄子一大茬栽培要求，确定了茄王、兰杂二号为目前张掖市一大茬嫁接茄子最优品种；推荐日本长茄与张掖地方品种5叶茄的早春日光温室和大棚早熟栽培最适品种；各类图茄不适应本地消费习惯。 相似文献
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D. Burcu Hazer Ercan Bal Gülay Nurlu Kemal Benli Serdar Balci Feral Öztürk Baki Hazer 《Journal of Zhejiang University. Science. B》2013,14(11):993-1003
Objective
This study aims to investigate the degree of biocompatibility and neuroregeneration of a polymer tube, poly-3-hydroxyoctanoate (PHO) in nerve gap repair.Methods
Forty Wistar Albino male rats were randomized into two groups: autologous nerve gap repair group and PHO tube repair group. In each group, a 10-mm right sciatic nerve defect was created and reconstructed accordingly. Neuroregeneration was studied by sciatic function index (SFI), electromyography, and immunohistochemical studies on Days 7, 21, 45 and 60 of implantation. Biocompatibility was analyzed by the capsule formation around the conduit. Biodegradation was analyzed by the molecular weight loss in vivo.Results
Electrophysiological and histomorphometric assessments demonstrated neuroregeneration in both groups over time. In the experimental group, a straight alignment of the Schwann cells parallel to the axons was detected. However, autologous nerve graft seems to have a superior neuroregeneration compared to PHO grafts. Minor biodegradation was observed in PHO conduit at the end of 60 d.Conclusions
Although neuroregeneration is detected in PHO grafts with minor degradation in 60 d, autologous nerve graft is found to be superior in axonal regeneration compared to PHO nerve tube grafts. PHO conduits were found to create minor inflammatory reaction in vivo, resulting in good soft tissue response. 相似文献19.
为改善竹原纤维的服用性能,迎合广大消费者个性化、新颖化、功能化的要求,以天然竹原纤维为原料,探讨了环氧氯丙烷、β-环糊精、含氟环氧化合物等十余种化学改性剂应用于竹原纤维的接枝改性,分析了各种不同化学改性剂用于竹原纤维接枝改性的反应历程,对开发具有多功能、高性能、好品质的新型竹原纤维及其纺织面料提供了新思路,同时对化学改性剂在纺织印染领域中的应用指出了新的方向。 相似文献
20.
Sainan Mu Qirong Liu Pinit Kidkhunthod Xiaolong Zhou Wenlou Wang Yongbing Tang 《国家科学评论(英文版)》2021,8(7)
Sodium-based dual-ion batteries (Na-DIBs) show a promising potential for large-scale energy storage applications due to the merits of environmental friendliness and low cost. However, Na-DIBs are generally subject to poor rate capability and cycling stability for the lack of suitable anodes to accommodate large Na+ ions. Herein, we propose a molecular grafting strategy to in situ synthesize tin pyrophosphate nanodots implanted in N-doped carbon matrix (SnP2O7@N-C), which exhibits a high fraction of active SnP2O7 up to 95.6 wt% and a low content of N-doped carbon (4.4 wt%) as the conductive framework. As a result, this anode delivers a high specific capacity ∼400 mAh g−1 at 0.1 A g−1, excellent rate capability up to 5.0 A g−1 and excellent cycling stability with a capacity retention of 92% after 1200 cycles under a current density of 1.5 A g−1. Further, pairing this anode with an environmentally friendly KS6 graphite cathode yields a SnP2O7@N-C||KS6 Na-DIB, exhibiting an excellent rate capability up to 30 C, good fast-charge/slow-discharge performance and long-term cycling life with a capacity retention of ∼96% after 1000 cycles at 20 C. This study provides a feasible strategy to develop high-performance anodes with high-fraction active materials for Na-based energy storage applications. 相似文献