休闲农业区域乡村景观规划设计探索

一、休闲农业的兴起随着人民生活水平的提高及农业的发展,以种养业为主的自然经济型农业正在向集约化、规模化、深加工的产业经济型农业迅速发展。同时,随着世界人口城市化速度的加快,     

武当山古建筑群史话

世界文化遗产——武当山古建筑群,在丹江口市境内(原老均州城)。自秦汉至1958年有2100多年历史。人们知道武当山古建筑群的博大精深,但是作为武当山古建筑群建设发展的后方物资供应集散地、大本营的老均州城,知道情况的人就少了。因为1958年丹江口水库建成蓄水后,这座历史文化名城已淹没在碧波荡漾的汉水深处。天下从此无均州。 现在,我们只能从志、史、传记、图片里,从现有实物中以及武当山古建筑群的选址及建设情况去追寻那逝去的古城遗韵。     

善美办公楼

这是一个给现有办公楼增建门厅的小项目。办公楼原有入口在建筑的南侧,业主希望将主入口改设在办公楼的东侧。由于现状楼的东侧只有一个设置在走廊尽头的门,因此在其延长线上增建怎样的门厅便成为设计问题的关键。增建门厅基地的南北两侧有两栋建造于不同时期的住宅楼,一个狭长     

地基沉降计算深度范围内压缩模量当量值_（E_s）~－的实用计算公式

本文针对《建筑地基基础设计规范》（ＧＢＪ７—８９）中地基沉降计算深度范围内压缩模量当量值的计算公式,通过理论推导,提出该值的实用计算公式,其计算结果使在沉降计算中完全等效于各分层的压缩模量,且计算十分简捷。     

A novel application of TPAD-MBR system to the pilot treatment of chemical synthesis-based pharmaceutical wastewater

A pilot-scale test was conducted with a two-phase anaerobic digestion (TPAD) system and a subsequential membrane bioreactor (MBR) treating chemical synthesis-based pharmaceutical wastewater. The TPAD system comprised a continuous stirred tank reactor (CSTR) and an upflow anaerobic sludge blanket-anaerobic filter (UASBAF), working as the acidogenic and methanogenic phases, respectively. The wastewater was high in COD, varying daily between 5789 and 58,792 mg L(-1), with a wide range of pH from 4.3 to 7.2. The wastewater was pumped at a fixed flow rate of 1m(3)h(-1) through the CSTR, the UASBAF and the MBR in series, resulting in respective HRTs of 12, 55 and 5h. Almost all the COD was removed by the TPAD-MBR system, leaving a COD of around 40 mg L(-1) in the MBR effluent. The pH of the MBR effluent was found in a narrow range of 6.8-7.6, indicating that the MBR effluent can be directly discharged into natural waters. A model, built on the back propagation neural network (BPNN) theory and linear regression techniques, was developed for the simulation of TPAD-MBR system performance in the biodegradation of chemical synthesis-based pharmaceutical wastewater. The model well fitted the laboratory data, and was able to simulate the removal of COD.     

重庆菜袁路隧道模拟设计

本文论述应用平面变形条件下的模型试验结果,分析研究重庆菜袁隧道的初步设计,确定喷射混凝土和岩石锚杆的尺寸和二次衬砌的厚度,以及选择适合的施工方法。     

山水草堂:中式庭园低密度住宅规划及设计方案

该项目位于西安市南郊秦岭北麓环山生态旅游区内,距西安市中心30余km。中式庭园低密度住宅区是山水草堂项目一期的一部分.位于总征地范围的东侧。其用地方整.地形南高北低.北侧为环山公路及其林带.南侧为黑河输水管道控制用地(绿化带).西侧为区内公园.东侧为外围道路,用地中部有一山中溪流由南至北通过。总建筑面积63507m2.总户数342户。     

Effects of Air Inlet Configuration on Forced-Ventilation Enclosure Fires on a Naval Ship

The effects of air inlet configuration on pool fire behavior in a mechanically ventilated cabin were investigated. The closed cabin used was a model of a certain machinery cabin on a naval ship. Two air inlet configurations of one vent and two vents were taken into account together with five different elevations of air inlet. In one-vent cases, mass loss rate and gas temperature were lower and oxygen concentrations were higher than those of two-vent cases. With the increase of air inlet elevation, a sudden drop in average mass loss rate and peak temperature were found in the two-vent cases at the air inlet elevation of 1.56 m. In one-vent cases, a similar drop in average mass loss rate was found at the air inlet elevation of 0.88 m, while the peak temperature was almost unaffected by inlet elevation. According to temperature profiles and the characteristic parameter of the smoke layer stability, the formation of the smoke layer was destroyed by increasing the air inlet elevation or reducing the air inlets, and furthermore a more uniform distribution could be found. For the current cabin, the one-vent case with a lower air inlet elevation was recommended for smoke control, and the inlet should be set away from the essential equipment and the entrances of the cabin.     

新型集成化光学陀螺技术

介绍了新型集成化光学陀螺的概念和特点,总结了新型集成化光学陀螺的研究方案和研究进展,指出未来新型集成化光学陀螺可能的发展方向和发展前景.     

Effects of Ca2+, Mg2+, Na+, and K+ substitutions on the microstructure and electrical properties of GdCoO3 ceramics

Journal of Electroceramics - GdCoO3-δ, Gd0.975Na0.025CoO3-δ, Gd0.98K0.02CoO3-δ, Gd0.98Ca0.02CoO3-δ, and GdCo0.99Mg0.01O3-δ ceramics were prepared via a solid-state reaction...