摘要：基于情感需求导向,对苏州姑苏地区相关养老机构进行调研分析。以西园养老护理院具体案例展开思辨讨论,从古城区的文脉特色、建筑特征出发,总结出老年人的需求、行为特征,将适老化设计理念运用于机构养老空间,提出提升空间适老性方案。最后就机构养老普遍存在的管理较为封闭、空间层次单一、“社会生活感”缺失、设施设备老化等问题,提出相应的五点适老化设计建议,力求为机构养老空间提供更合理、舒适的布局方式及设计理念,满足老年人群对高品质、高质量养老生活的需求。

摘要：亚波长光栅结构表现出优异的陷波滤光特性,其经典设计是设定亚波长的几何结构参数,求解麦克斯韦方程组,设定优化算法求解出最优解,需要消耗大量的时间和计算资源。提出一种基于深度学习的逆向设计方法,搭建了可以同时实现正向模拟与逆向设计的串联神经网络。基于python语言的Tensorflow库进行网络搭建;优化均匀波导层的高度、亚波长光栅的高度、折射率、周期以及占空比;研究亚波长光栅在0.45~0.7μm的陷波滤光特性。采用严格耦合波分析(RCWA)数值模拟生成23100组数据集,在生成的数据集中随机选择18480组数据作为训练集,4620组作为测试集,并对不同的网络层数,网络节点以及Batch_size进行了研究。结果显示经过1000次的迭代后,当网络的模型结构为5×50×200×500×200×26,Batch_size大小为128时,网络性能最佳。相比独立的网络模型,串联神经网络的正向模拟测试集损失率从0.03363降到了0.0045,逆向设计的测试集损失率从0.70298降到了0.05298,同时解决了由数据的非唯一性导致的网络逆向设计过程中无法收敛的问题。在完成训练的网络中输入任意的光谱曲线,网络平均在1.35 s内给出亚波长光栅的几何结构参数;并与RCWA数值模拟曲线进行相关性分析,曲线相似系数均大于0.6581,属于强相关。另外,设计红、绿、蓝三种颜色的陷波滤光片,其峰值反射率分别可以达到98.91%,99.98%和99.88%,与传统方法相比,该方法可以快速、精确的求解出光栅的几何参数,为亚波长光栅设计提供了新方法。

摘要：The gravity inversion is to restore genetic density distribution of the underground target to be explored for explaining the internal structure and distribution of the *** this paper,we propose a new 3D gravity inversion method based on 3D U-Net++.Compared with two-dimensional gravity inversion,three-dimensional(3D)gravity inversion can more precisely describe the density distribution of underground ***,conventional 3D gravity inversion method input is two-dimensional,the input and output of the network proposed in our method are *** the training stage,we design a large number of diversifi ed simulation model-data pairs by using the random walk method to improve the generalization ability of the *** the test phase,we verify the network performance by using the model-data pairs generated by the *** further illustrate the eff ectiveness of the algorithm,we apply the method to the inversion of the San Nicolas mining area,and the inversion results are basically consistent with the borehole measurement ***,the results of the 3D U-Net++inversion and the 3D U-Net inversion are *** density models of the 3D U-Net++inversion have higher resolution,more concentrated inversion results,and a clearer boundary of the density model.

摘要：CO2 is not only the most important greenhouse gas but also an important resource of elemental carbon and *** the perspective of resource and energy strategy,the conversion of CO2 to chemicals driven by renewable energy is of significance,since it can not only reduce carbon emission by the utilization of CO2 as feedstock but also store low-grade renewable energy as high energy density chemical *** studies on photoelectrocatalytic reduction of CO2 using renewable energy are increasing,artificial bioconversion of CO2 as an important novel pathway to synthesize chemicals has attracted more and more *** simulating the natural photosynthesis process of plants and microorganisms,the artificial bioconversion of CO2 can efficiently synthesize chemicals via a designed and constructed artificial photosynthesis *** review focuses on the recent advancements in artificial bioreduction of CO2,including the key techniques,and artificial biosynthesis of compounds with different carbon *** the basis of the aforementioned discussions,we present the prospects for further development of artificial bioconversion of CO2 to chemicals.

摘要：微纳波长分束器是光子芯片中一种重要的分光器件.本文运用序列二次规划智能算法,设计了尺寸为1.5μm×1.5μm的多个超小波长分束器,其中Y型双通道分束器可同时实现TE/TM模式的双波长分束,TE模1140和1200 nm两波长的传输效率分别为80%和81%,消光比分别为18.1和16.3 dB,TM模传输效率分别为70%和67%,消光比为18.3和15.9 dB;T型分束器实现了光束的180°相向分离,待分波长1100和1170 nm的传输效率均达到了88%,消光比分别为16.6和15.0 dB,是目前尺寸最小的片上波分器;十字型三通道分束器实现了波长间隔为50 nm的分束,待分波长1100,1150和1200 nm传输效率分别为73%,66%和70%,消光比分别为17.2,13.8和13.8 dB;非对称三通道分束器分束波长间隔仅为20 nm,待分波长1200,1220和1240 nm的传输效率分别为61%,56%和57%,消光比分别为10.8,7.9和8.9 dB.本方法的设计周期短、设计效率高,且所设计的结构简单、易加工,本方法适用于多种片上集成元器件的设计,为微纳片上集成光子器件的设计提供了一种新思路.

摘要：Porous SiC/Ti-based metallic glass composite (Ti-BMGC), a new kind of composite, has significant application prospectin the field of light armor. To evaluate the dynamic mechanical response of the composite, dynamic Vickers hardness andindentation-induced deformation behavior were investigated by comparison with that under static indentation. The dynamic hardnesswas measured by a modified split Hopkinson pressure bar (SHPB). The dynamic hardness is obviously greater than the statichardness. The brittleness parameter under dynamic indentation is also greater than that under static indentation. Although thedynamic indentation induced more severe deformation behavior than the static indentation, the deformation and fracturecharacteristics in the two loading cases are nearly the same, both exhibiting extensive cracks in the SiC phase and severe plasticdeformation in the metallic glass phase.

摘要：本文通过对两个图词干扰的命名实验,考察了汉语母语者及韩语母语者的高级与中级水平汉语二语者,口语产出动宾短语和“把”字短语时语法编码的计划广度。研究结果发现,汉语母语者和二语者均计划了动宾短语的宾语词条;母语者和高级水平二语者均计划了“把”字短语的动词词条,但未发现中级水平二语者对动词词条的计划。研究结果说明,随着汉语水平的提高,二语者语法编码计划广度逐步接近汉语母语者;从计划广度来看,不同水平二语者语序偏误的主要来源不同。

摘要：The 4-lobe aluminum alloy helical surface rotors are widely applied in industry,such as ***,the conventional manufacturing processes of aluminum alloy helical surface are time consuming and *** make the manufacturing processes more flexible and economical,the forward hot extrusion process is proposed to form the 4-lobe aluminum alloy helical surface *** this work,we implement both simulations and experiments to the forming process of the helical surface,of which the material is 6063 aluminum *** forward hot extrusion process is simulated with finite element method in *** on the simulation method,the influences of different extrusion parameters,such as extrusion temperature,extrusion speed and extrusion ratio,on the extrusion process are *** to the numerical simulation results,the optimal case is chosen to carry out the ***,the experimental results show that the surface is smooth;the toothed fill is full;the twist angle in the length direction is evenly distributed;the value of twist angle is roughly in line with the design angle,which is mainly due to the modified die structure,having a positive and significant effect on the increment of twist ***,the twist angle has an increase of about 76%,which verifies the modified die structure.

摘要：等价定理是混料模型试验设计中最重要的定理之一,特别的D-和G-最优设计的等价定理结果尤为完美。在单响应模型中,一般连续设计与等配置设计的D-最优性等价定理都已经存在,在多响应模型中,一般连续设计的D-最优性等价定理与单响应基本一致,但是等配置设计的D-最优等价定理却和单响应并非一致,等配置的设计在实际应用中的实现优势显而易见。本文就此给出多响应下等配置设计的D-和G-最优性等价定理,并给出几个说明性例子。

摘要：目的探索早期预测儿童难治性肺炎支原体肺炎(RMPP)的方法。方法前瞻性多中心研究,收集2019年5月1日至2020年1月31日在浙江13家医院就诊的1428例发热>48~48~<120 h的肺炎支原体肺炎患儿,可根据首次就诊前的最高体温和LDH水平计算RMPP的预报概率,以期达到早期预测RMPP的目的。