The Reuse of Urban and Industrial Waste in Tai-Lin-Pu Reclamation Project,Taiwan

Abstract

This study introduces the principles of KMG's (Kaoshiung Municipal Government) dealing with the non-poisonous urban and industrial waste through reclamation of shore land in reinforcing a sense of coastal protection and land development in Tai-Lin-Pu coastal area, southern Taiwan.

Through a series of experimental studies, we found that substitutes of coarse aggregate with a broad spectrum of integrating slag powder, fly ash, and cementitious material can be obtained with a benefit up to 80% saving of cement. the integrated aggregates from the non-poisonous industrial wastes were subsequently made into armour units and used in the field tests at Tai-Lin-Pu coastal area, where the shorelines are seriously eroded. After being subjected to several severe typhoon advents, the results showed that the waste-made units used as the protection breakwater, together with construction wastes and excavated soil as the filling material, prove to be an effective practice in utilizing recycled urban waste to reclaim erosive shore lands. Moreover, this study also demonstrates that through detailed analysis of the waste characteristics, scrap material could be turned into valuable construction aggregates, and highlights the value of non-poisonous urban and industrial waste as a alternative resource for the shore protection engineering.     

三峡库区21世纪气候变化的情景预估分析

利用政府间气候变化委员会第四次评估报告提供的新一代气候系统模式的模拟结果（IPCC AR4），通过多模式集合方法预估分析了3种排放情景(高排放SRES A2、中等排放SRES A1B和低排放SRES B1)下三峡库区21世纪气候的可能变化。结果表明，挑选模拟性能较好的模式进行的多模式集合对库区气温和降水的变化具有较好的模拟能力，21世纪库区气候总体有显著变暖、变湿的趋势，年平均气温变暖趋势为2.1~4.2℃/100 a，年降水增加趋势为6.1%~9.7%/100 a。就季节变化而言，冬季的变暖幅度最大，降水增加幅度最大。库区年平均气温在21世纪将持续呈上升趋势，而年降水在21世纪前期有减少趋势，在中期和后期逐渐增多。在A2、A1B和B1排放情景，21世纪后期气温分别比常年偏暖3.7、3.3和2.2℃，年降水分别比常年偏多4.4%、5.5%和3.5%。     

城市混凝土桥梁薄弱处分析

随着城市化进程的不断发展,包括高架桥、立交桥在内的大量混凝土桥梁在城市交通网络中扮演者极其重要的角色。但受环境侵蚀、交通量日益增加的影响,城市混凝土桥梁不可避免地出现一定损伤,严重甚至会导致桥梁倒塌等重大灾难事故。在分析城市混凝土桥梁的各种损伤及损伤演化过程的基础上提出运营桥梁薄弱处的概念。该薄弱处是指受环境侵蚀、材料老化、荷载变化等因素的影响,混凝土桥梁结构中最先发生破坏的构件或构件中的某一位置。对运营桥梁薄弱处的分析宜采用分析结构中各处的承载力下降及相应的荷载效应增加二者相结合的方法,通过比较获得桥梁中各处抗力与荷载效应最为接近的地方,即结构薄弱处。最后,总结了城市混凝土桥梁薄弱处分析研究的发展方向及亟待解决的关键技术。     

葫芦岛市近岸海域水生动物重金属污染状况的监测

参考国内外有关生物残毒研究理论 ,对葫芦岛市沿岸海区 ,包括东起笊笠码头 ,西至绥中芷锚湾海滨海水中现存动物体重金属污染状况进行监测和评价。     

Adsorption of fulvic acid by carbon nanotubes from water

This study investigated adsorption of fulvic acid (FA) by single-walled (SWCNT) and multi-walled carbon nanotubes (MWCNT) and activated carbon. Adsorption of FA depends greatly on the adsorbent surface area and solution pH. SWCNT has higher adsorption than MWCNT and activated carbon. Lower E4/E6 (absorbance at 465 nm to that at 665 nm) and higher E2/E3 (absorbance at 250 nm to that at 365 nm) ratios of the residual FA in solution after adsorption than that of original FA in low pH ranges suggest that aromatic rich FA fractions with polar moieties readily adsorb on the adsorbents. The apparent interaction mechanisms between FA and CNT surfaces include electrostatic, hydrophobic, π-π and hydrogen-bond interactions. FA adsorption was reduced greatly with increasing pH because of the increase of electrostatic repulsion and the decrease of hydrophobic and hydrogen-bond interactions.     

北京市近郊区乡村景观规划方法初探

以北京西北近郊白家疃村为例 ,分析了乡村景观的现状和动态演变的特征 ,重点探讨了乡村景观规划的原则和方法 ,并提出了白家疃村景观规划方案和设计要点     

浙江省梅汛期洪涝灾情分析和预测

通过所构设的雨涝强度、雨涝影响面积等统计量来估计浙江省梅汛期的灾情，有较高的准确率，能估计出极端情况，为灾害评估工作提供了新的思路。     

长江新滩滑坡的历史分析，趋势预测与启示

从对新滩滑坡的历史回顾分析入手，得出新滩滑坡具有时空上的周期性和继承性规律。着重阐述了１９８５年６月１２日新滩滑坡的形成过程，分析了其机理和形成原因，并由此得出对三峡库区滑坡灾害在治理上的重要启示。     

黄河下游堤防保护范围的研究

历史上，黄河山东段曾多次泛滥，为了解定黄河下游堤防的保护范围及保护范围内的洪水风险，本文利用二维不规则网格非恒定流洪水仿真模型，研究了黄河下游山东段堤防的保护范围，该研究对于黄河下游堤防建设及两岸地区的防洪灾害具有重要的指导意义。     

高CO_2浓度下水稻高产品种特三矮2号的生长、产量与米质的研究(英)

于1996年晚季，从移栽到收割水稻高产品种特三矮2号种植于高CO2浓度（xco2=600X10-6）与目前大气CO2浓度（xco2=350X10-6）的塑料大棚内.xco2浓度由自动监控系统调节控制在整个生育期内，地上部生物学产量在高xco2下显著增加抽穗前，绿叶面积在高CO2浓度下显著增加；但抽穗后，绿叶面积在高CO2浓度下下降更快高CO2浓度下，谷产量、结实率和千粒重增加，而穗数和每穗谷粒数下降蒸煮品质（包括直链淀粉含量，胶稠度和碱消值）不受CO2浓度影响；而营养品质（蛋白质与氨基酸含量）在高CO2浓度下显著下降.我们认为，为了获得水稻的最大生产力和保持米的营养品质，施氮的数量与时间在高CO2浓度下应该有所调整.