搜索结果: 1-15 共查到“Alder”相关记录70条 . 查询时间(0.062 秒)
The Impact of Season on Productivity and Time Consumption in Timber Harvesting from Young Alder Stands in Lowland Poland
Alnus glutinosa commercial thinning season of timber harvesting productivity time consumption time study working time structure
2024/1/19
The purpose of this study was to establish the impact of season on productivity, labour consumption, and working time structure during timber harvesting from young alder stands (Alnus glutinosa Gaertn...
Trends in the Diels-Alder reaction in polymer chemistry
REVERSIBLE CLICK CHEMISTRY FREE-RADICAL POLYMERIZATION CROSS-LINKED POLYAMIDES HIGH-PERFORMANCE ACRYLIC-ACID ROOM-TEMPERATURE MALEIC-ANHYDRIDE LEVOPIMARIC ACID BUILDING-BLOCK MUCONIC ACID
2023/12/4
The Diels-Alder (DA) reaction is regarded as quite a useful strategy in organic and macromolecular syntheses. The reversibility of this reaction and the advent of self-repair technology, as well as ot...
Limitations of Diels-Alder Dynamic Covalent Networks as Thermal Conductivity Switches
thermal conductivity thermal switching dynamic covalent networks RAFT polymerization Diels-Alder cross-linking
2023/12/1
Creating polymers that exhibit a switchable thermal conductivity requires a fundamental understanding of how polymer structure and inter- and intramolecular interactions influence thermal transport. T...
复旦大学化学系蔡泉课题组:反电子需求Diels–Alder反应实现Cephanolides A和B的全合成(图)
反电子需求 Diels–Alder反应 CephanolidesA和B合成 手性六碳环
2022/6/13
酶催化反应领域重要科研突破:雷晓光课题组与合作者发现自然界中首例exo选择性的分子间Diels-Alder反应酶(图)
exo选择性分子 Diels-Alder反应酶 酶催化生物合成 酶催化反应
2022/5/9
中国科学院上海有机化学研究所生命有机化学国家重点实验室周佳海课题组和美国加州大学洛杉矶分校(UCLA)唐奕课题组与Kendall N. Houk课题组合作,首次表征了自然界中催化Alder-ene反应的酶及其催化氧杂Diels-Alder(DA)反应的同源蛋白,解析了这两类酶及其复合物的高分辨率晶体结构,基于结构信息和计算指导通过定点突变实现了周环选择性的逆转,阐明了两类酶如何利用几乎相同的活性位...
Carbon and Macronutrient Budgets in an Alder Plantation Grown on a Reclaimed Combustion Waste Landfill
carbon stocks fly ash nitrogen-fixing species revegetation biomass
2024/2/5
Combustion waste landfills are unfavorable for revegetation due to nitrogen deficiency, and therefore, the introduction of nitrogen-fixing organisms, such as alder species (Alnus sp.), may be promisin...
中国科学院上海有机化学研究所阐述新颖黄素依赖Diels-Alder[4+2]环加成酶的结构和催化机制(图)
中国科学院上海有机化学研究所 新颖黄素 Diels-Alder[4+2] 环加成酶 催化机制
2018/4/23
Diels-Alder(D-A)反应是人们所最为熟知的有机人名反应之一,并被广泛地应用于合成化学、药物化学、材料化学和化学生物学的研究中。人们基于路易斯酸活化以及氢键活化策略设计了不同的小分子催化剂以催化D-A反应,同时还通过分子定向进化的方法筛选得到了能够催化D-A反应的RNA酶和DNA酶。但是长期以来,人们对于自然界中是否存在天然的能够催化D-A反应的酶这一问题以及其可能的催化机制,却一直存在...
中国科学院上海有机化学研究所在阐述新颖黄素依赖Diels-Alder[4+2]环加成酶的结构和催化机制方面取得新进展(图)
中国科学院上海有机化学研究所 新颖黄素依赖 Diels-Alder[4+2] 环加成酶 催化机制
2018/4/20
Diels-Alder(D-A)反应是人们所最为熟知的有机人名反应之一,并被广泛地应用于合成化学、药物化学、材料化学和化学生物学的研究中。人们基于路易斯酸活化以及氢键活化策略设计了不同的小分子催化剂以催化D-A反应,同时还通过分子定向进化的方法筛选得到了能够催化D-A反应的RNA酶和DNA酶。但是长期以来,人们对于自然界中是否存在天然的能够催化D-A反应的酶这一问题以及其可能的催化机制,却一直存在...
采用热可逆的Diels-Alder(DA)反应制备分子印迹聚合物(MIP),以活化改性的含环氧基团硅胶为载体,以分子修饰β-环糊精作为功能单体,吲哚-3-乙酸(IAA)为模板分子,接枝呋喃型双烯体后交联聚合,得到含有温敏性DA反应亲双烯体结构组件的分子印迹聚合物,通过与双烯体发生DA反应得到新型结构的DA-MIP,
华东师范大学“青年长江学者”高栓虎课题组在Nature子刊发表最新成果——光促进的Diels-Alder反应对多环蒽醇化合物的有效合成
华东师范大学 青年 长江学者 高栓虎课题组 光 Diels-Alder反应 多环蒽醇 化合物 有效合成
2017/10/27
2017年9月20日,《自然•通讯》(Nature Communications)在线发表我校化学与分子工程学院高栓虎教授研究团队的研究论文“Ti(Oi-Pr)4-promoted photoenolization Diels–Alder reaction to construct polycyclic rings and its synthetic applications”,重点介...
Ecological functions of vegetation as potentials of ecosystem services (floodplain alder forest in the Tríbeč microregion)
biomass black alder forest herbaceous understorey provisioning and production services
2017/4/6
Ecological functions of a black alder riparian forest (Aegopodio-Alnetum glutinosae) as capacities for the provision of ecosystem services were analysed and indicated by an inductive (bottom-up) appro...
Cultivation of speckled alder under harsh mountain conditions
Alnus incana grey alder site amelioration slow-acting amendments biological amelioration
2015/4/14
The aims of the paper were as follows: (1) to assess the applicability of speckled alder for pioneer stands on the mountainous clear-cut tracts and (2) to evaluate the effects of slow-release fertiliz...
Winter survival of Phytophthora alni subsp. alni in aerial tissues of black alder
Phytophthora alni winter survival black alder temperature Phytophthora alder disease
2015/4/14
The winter survival of the invasive pathogen Phytophthora alni subsp. alni in black alder stems was studied in the bankside alder stand of the Moravská Dyje River in southern Bohemia after two very di...
The effects of flooding and Phytophthora alni infection on black alder
alder decline Alnus glutinosa flooding Phytophthora alni
2015/3/20
The influences of long-term flooding and Phytophthora alni subsp. alni infection on the growth and development of 4-year-old Alnus glutinosa (black alder) saplings were investigated. The black alder s...