Geologic Workflows: The Metamorphosis of the Great Rock

Creating a series of inspirational museum spaces inside an irregularly shaped void at the heart of a massive artificial rock formation is no everyday task. To fulfil the dream that had driven construction of the Great Rock at Budapest Zoo & Botanical Garden over a century ago, and to make the most of the space available, local firm PLANT – Atelier Peter Kis devised an innovative workflow that began with 3D scanning of the decaying concrete structure. Architect Péter Kis and landscape architect Sándor Bardóczi describe it.     

长白山榛仁(Corylus heterophylla Fisch.)蛋白酶解物对小鼠免疫功能的影响

本文研究不同水解度的长白山榛仁蛋白酶解物对小鼠免疫功能的影响。按水解时间不同制备六种水解度榛仁蛋白酶解物(DH分别为24.16、29.69、33.22、36.33、38.08和39.57%),给受试组小鼠经口按1.00 g/kg·bw剂量灌胃,灌胃第10、20、30 d后,以小鼠免疫脏器指数,脾淋巴细胞增殖能力,巨噬细胞吞噬活性,血清细胞因子水平(IFN-γ和IL-4),血清碱性磷酸酶活力为指标,研究榛仁蛋白酶解物对小鼠的免疫调节功能。结果表明:水解度33.22%的榛仁蛋白酶解物只显著增加了小鼠胸腺指数(p0.05);水解度为36.33、38.08和39.57%的榛仁蛋白酶解物均能显著或极显著地增加小鼠免疫脏器指数、血清IFN-γ和AKP水平,增强脾淋巴细胞增殖活性和巨噬细胞吞噬活性(p0.05或p0.01)。结论,水解度为36.33、38.08和39.57%的榛仁蛋白酶解物具有增强小鼠免疫功能的作用。本研究为榛仁蛋白开发具有免疫活性的肽类产品提供了实验依据。     

西昆仑团结峰铅锌矿床地质特征及成矿模式

团结峰铅锌矿床位于林济塘(陆缘盆地)Fe-Pb-Zn-Cu-Au-Mo-石膏矿带内,是近几年来新发现的铅锌矿床之一。本次研究在野外地质调查、探矿工程验证以及室内岩矿鉴定的基础上,查明该矿床含矿岩层受控于中侏罗统龙山组下段灰岩,矿体的分布明显受层理及层间破碎带等控制,产状呈层状、似层状,与早期构造及岩浆活动无明显关系;分析了含矿热液的形成、运移及铅锌硫化物的沉淀机制,初步建立其成矿模式。综合分析认为该矿床属层控密西西比河谷型(MVT)铅锌矿床,区域上同类型矿床具较大找矿潜力。     

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以柴达木盆地南翼山油田中深层凝析气藏为例,论述了该油田裂缝性油气藏的地质特征以及裂缝在钻井、录井中的显著标志及岩心中缝洞发育情况：储层裂缝以断怪和褶皱作用相关的构造裂缝为主,加上地下水沿裂缝溶蚀形成的溶孔或溶洞,构成了现今南册中深层油气藏缝洞储渗系统。缝洞的发育及开启程度主要受构造应力强度与方式、岩性及溶蚀作用等因素的控制;进而了与断怪原裂缝受断裂缝民布规律控制。主要分布在应力强度与方式、岩性及溶     

研古习今，传承创新—从避暑山庄的植物景观营建谈生态园林建设

避暑山庄是以朴野的自然山水环境为基础兴造的皇家园林,园林植物景观特色鲜明。前人研究山庄局部的植物景观及其设计手法,较少从山庄植物历史变迁中反向分析其建设过程和植物景观的整体营建方法。本文从历史文献及现状留存植物群落入手进行分析,发现避暑山庄的整体建设遵从合理控制人工建设的范围和规模,减少对自然区域植被地形的干扰;保护并利用原有的自然植被进行景区景点建设,充分发挥优势植物在整体环境中的景观作用;对地形、水系等造园要素的建设以保护原有自然植被为基础的方式。在现代园林生态建设中,可以学习避暑山庄植物景观的营建方法,遵循"最小干扰、最大化利用、最小投入"的原则,契合当前节约型园林建设的思路,崇尚自然、敬畏自然、善待自然的理念,是当前风景园林生态建设的借鉴典范。     

Immunological Memory of Mountain Birches: Effects of Phenolics on Performance of the Autumnal Moth Depend on Herbivory History of Trees

Plants have been suggested to have an immunological memory comparable to animals. The evidence for this, however, is scarce. In our study with the mountain birch—Epirrita autumnata system, we demonstrated that birches exposed as long as 5 yr to feeding of E. autumnata larvae (delayed induced resistance, DIR), responded more strongly to a new challenge than trees without an herbivory history. Pupal weights remained lower, and the duration of the larval period was prolonged in the DIR trees, although immunity, measured as an encapsulation rate, was not affected. We further demonstrated that the effects of birch phenolics on performance of E. autumnata were different in the exposed (DIR) trees from naive control trees, although we found only one significant change in chemistry. The quercetin:kaemferol ratio was increased in DIR trees, suggesting that herbivory caused oxidative stress in birches. In DIR trees, phenolics, especially hydrolyzable tannins (HTs), affected pupal weights negatively, whereas in control trees, the effects were either nonsignificant or positive. HTs also prolonged the duration of the larval period of females, whereas peroxidase (POD) activity prolonged that of males. We suggest that the causal explanation for the induced resistance was an enhanced oxidation of phenolic compounds from the DIR trees in the larval digestive tract. Phenolic oxidation produces semiquinones, quinones, free radicals, and ROS, which may have toxic, antinutritive, and/or repellent properties against herbivores.     

基于城市更新的山地城镇街道空间设计策略

等道空间作为山地城镇空间的核心构成要素,具有多重复合的城市功能与立体化的空间形态。本文着重分析了当前山地城镇街道空间的发展现状及存在的问题,并基于山地城镇特定的城市更新目标,从宏观、中观、微观三个层面提出了突出自然要素、重构新旧城市肌理、优化街道界面等城市设计策略。     

Differences in lithospheric structures between two sides of Taihang Mountain obtained from the Zhucheng-Yichuan deep seismic sounding profile

A 2-D model of lithospheric velocity structures in the southern part of the North China Craton was obtained using data from the Zhucheng-Yichuan deep seismic sounding profile.Results show that there are great differences in lithospheric structures between two sides of Taihang Mountain.In the eastern region,the lithosphere is thinner,with a thickness of about 70-80 km,while in the western region,the thickness is 85-120 km.There is a jump of the lithospheric thickness across Taihang Mountain gravity anomaly b...     

琥珀山庄居住小区污水处理工艺试验研究

进水 COD、油脂浓度过高 ,使小区污水处理厂难以正常运行 ,造成出水浑浊 ,不能达标排放。混凝沉淀试验证实 ,聚铝对 COD、油脂的去除率比聚铁高 ,在加药量达到 5 0 mg/ L时差异最为明显 ;水解酸化试验表明 ,水解酸化达到 2 h时 ,COD、油脂降解效果显著。采用物化法 ,可选用涡凹气浮工艺 ;采用生物法 ,可选用优点突出的水解酸化工艺。     

六盘山过湿土填筑的处置措施

为解决过湿土填筑路基问题,分析了六盘山地区过湿土形成的原因,提出晾晒,掺加粉煤灰、水泥、固化剂和生石灰的过湿土处置方案.因限于课题组内部技术(必须满足规范的压实度要求等)和资金的问题,只进行了掺生石灰粉处置过湿土的试验段的填筑,总结出生石灰粉处置过湿土的最高含水量限制及适宜的施工工艺.