摘要：In the Lancang‒Mekong River basin(LMRB),agriculture,dominating the local economy,faces increasing challenges in water supply under climate *** projection of future precipitation in this basin is essential for understanding the *** this study,the Weather Research and Forecasting(WRF)model was applied to project the LMRB *** with the historical period(1986e2005),we analyzed the changes of both the projected precipitation amount and the frequency of rainless(100 mm d
1)for three periods,namely the near-term(2016e2035),mid-term(2046e2065),and long-term(2080e2099).The results indicate that the precipitation amount during the wet season(AprileOctober)is expected to increase in most areas of the basin for the three *** for the precipitation during the dry season(NovembereMarch),an increase is projected in most areas for the near-term,while an increase in the lower reach of the basin and a decrease in the upper and middle reach for the mid-term and *** precipitation reduction is expected to be greatest in Myanmar,Laos,Thailand,and Yunnan province of China for the *** frequency of precipitation in different intensities has prominent regional and temporal *** the wet season,the days of rainless and light rain are expected to decrease in the middle reach,whereas the days of rainstorm and heavy rainstorm *** feature is especially strong in southern Thailand,southern Laos and Cambodia in the near-term and in Laos and Thailand for the mid-term and *** the dry season,there are projected increasing rainless days and decreasing days of precipitation for the other intensities in the middle reach,and opposite in the rest area of the *** projected precipitation changes have potential various impact in different parts of the *** middle re

摘要：在这个城市规划的后奥运时代，几乎每周都能听到各种艺术区拆迁的流言。随着工作室所在的农用地被划为新的商业和高科技开发区，这些艺术家工作／生活的空间，这些砖头和水泥砌成的房子似乎注定要逐个走向毁灭。艺术家互相抱怨，向房东抗议，最终还是不得不屈服，开始低头计算装修的损失，并着手寻找新的住处。九十年代初中期的拆迁大潮再度出现，不过这一次，资金准备更充分，拆迁背后涉及的利润更大。

摘要：本文通过回顾大布鲁塞尔及周边地区的索尼安森林与人居环境交融演变的发展历程,阐释了"森林都市主义"这一概念。森林景观被认为是生态(提供大量生态系统服务)和城市环境的基本结构。森林都市主义是城市建设的一种形式,其依靠森林作为跨越(与交通、人居环境和生态相关的)尺度和维度的结构性要素。城市建设与大面积森林的相互作用体现为地域尺度上具有不同性质的各式森林形态。本文揭示了布鲁塞尔地区的森林和城市建设之间的相互影响,其中,城市环境的尺度、密度、品质和发展压力不尽相同,从坐落于森林中的人类定居点到拥有鲜明肌理的森林-城市的形式和方式也有所差异。索尼安森林及其周围环境随着时间发生的持续变化、所面临的当代挑战,以及未来可能的发展方向都非常引人瞩目。本文探究了森林砍伐与造林、人居环境与城市环境重建之间平行却又相互交织的过程和复杂关系。最后,作者认为,当下迫切需要通过重新梳理开发与保护的关系,来重建城市与森林之间生产与消耗的平衡。

摘要：The quality of contour blasting depends on many initial blasting *** parameters including blasthole diameter,rock Protodyakonov coefficient,tunnel area and distance between cracks on the tunnel face are more *** this study,an algorithm linking between Delphi programming language and AutoCAD was created to develop a tunnel blasting *** this model,tunnel contour blasting passport in AutoCAD can be obtained *** effects of rock Protodyakonov coefficient and cracks’distance on blastholes number and specific charge with the variation of blasthole diameter and the semi-circular tunnel face area were investigated to yield a set of equations with the highest *** results show that specific charge increases as rock Protodyakonov coefficient,cracks’distance and drillhole diameter increase,but decreases when tunnel face area *** addition,the number of drillholes increases linearly as tunnel face area increases but decreases when drillhole diameter increases.

摘要：As semiconductor technologies have been shrinking,the speed of circuits,integration density,and the number of I/O interfaces have been significantly *** a consequence,electromagnetic emanation(EME)becomes a critical issue in digital system *** devices must meet electromagnetic compatibility(EMC)requirements to ensure that they operate properly,and safely without interference.I/O buffers consume high currents when they *** bonding wires,and lead frames are long enough to play as efficient antennas to radiate electromagnetic interference(EMI).Therefore,I/O switching activities significantly contribute to the *** this paper,we evaluate and analyze the impact of I/O switching activities on the *** will change the circuit configurations such as the supply voltage for I/O banks,their switching frequency,driving current,and slew ***,a trade-off between the switching frequencies and the number of simultaneous switching outputs(SSOs)is also considered in terms of ***,we evaluate the electromagnetic emissions that are associated with the different I/O switching *** results show that the electromagnetic emissions associated I/O switching activities depend strongly on their operating parameters and *** the circuit implementations and measurements are carried out on a Xilinx Spartan-3 FPGA.

摘要：为研究贴有电子标签的货物在信息识别过程中由不同的方向进入射频识别通道机以提高货物识别效率,对多通道射频识别通道机内的天线系统、自动屏蔽门系统、输送系统进行性能试验研究.通过分析天线系统的识别角度和范围,设计自动屏蔽门系统的电机,布局光电开关,测试输送系统速率和选择电滚筒材料等,运用Tecnomatix Plant Simulation 9仿真软件对通道机各组成的结构及不同的工况进行仿真测试,仿真结果验证了多通道机在相同的工况下比单通道机性能优越.研究表明:本多通道信息识别机对多通道设计合理,各系统参数满足物联网工程应用中射频识别(RFID)信息识别的效率要求.

摘要：高强钢的冲压工艺参数对产品成形质量至关重要。文章研究了冲压工艺参数,如压边力(100kN^500kN)、摩擦系数(0.08~0.12)以及冲压速度(10mm·s-1~90mm·s-1)对产品成形质量的影响。为获得具有良好成形性能的冲压零件,基于中心组合实验设计方法设计有限元仿真方案,由此获得不同工况下的成形指标。采用响应面方法,建立优化模型;采用第二代非支配遗传算法(NSGA-II)优化工艺参数,获得帕雷托优化解;基于优化参数进行冲压实验,结果表明,有限元模型预测的成形缺陷符合实际情况。

摘要：以U型零件为研究对象,依据中心组合试验设计方法进行试验,对U型零件冲压进行数值模拟,获得不同工艺参数下的回弹量。基于响应面法获得不同工艺参数影响下U型件的回弹量的响应模型,研究了摩擦系数、压边力以及板料厚度对DP800先进高强钢冲压回弹量的影响规律,并对各个回弹参数的响应模型进行了优化。多目标优化结果表明:对于DP800先进高强钢,采用NUMISHEET'93标准考题的U型件模型,在摩擦系数为0.2、压边力为100 k N左右、板料厚度为2 mm时,或者摩擦系数为0.1、压边力为20 k N、板料厚度为2 mm时,可以达到最小回弹量。

摘要：Zirconium metal-organic frameworks ZrOBDC(where BDC=C6H4(COOH)2,terephthalic acid)doped and co-doped with rare earth ions Ln(ZrOBDC:Ln^3+,where Ln^3+=Eu3+and Tb^3+as well as Er^3+and Yb^3+)were used as precursors for the design of tetragonal rare earth doped zirconia nanoparticles(t-ZrO2:Ln^3+NPs)through annealing ***,characterization and luminescence properties of ZrOBDC:Ln^3+and ZrO2:Ln^3+NPs were *** as-obtained t-ZrO2:Ln^3+NPs have high purity with an average size of 20-30 *** luminescence spectra of ZrOBDC:Tb^3+and ZrOBDC:Eu3+display strong green and red emission at around 544 and 611 nm which correspond to 5D4→7F5 and 5D0→7F2 transitions of Tb^3+and Eu3+ions,*** green and red up-conversion emissions of ZrO2:Er^3+,Yb^3+NPs due to 2H11/2,4S3/2→4I15/2 and 4F9/2→4I15/2 transitions of the Er^3+ions are observed under 976 nm laser excitation.

摘要：该项目坐落于越南菊芳国家公园(Cue Phuong)的边界上,四周绿树成荫,植被丰富。Vedana餐厅是Vedana度假村整体规划的一部分,而这两个项目均由武重义建筑事务所(VTN Architects)负责设计。度假村共包含能容纳1350人的135栋别墅、5家公寓酒店以及8间单层别墅。Vedana餐厅作为园区中的重要构成,位于度假村中央。除了为客人们提供全天候的用餐空间以外,Vedana餐厅还可以作为婚庆或大型活动的举办场地使用。