In recent years, the Southern California region has improved building codes, evacuation procedures, and procurement of new technology.

近年来，南加州地区改进了建筑规范、疏散程序和新技术采购。

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In this paper, we propose a new improved linear dispersion codes transmission scheme to combat performance loss of original LDCs when using OSIC detection.

本文提出了一种改进的线性疏散码传输方案，来克服原先的线性疏散码在OSIC检测时的性能损失。

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Based on cyclic diagonal codes, an improved design of unitary space-time codes (USTC) at low SNR is proposed.

在低信噪比情况下，提出了一种基于循环对角码的改进的酉空时码设计。

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Meanwhile, wind and building-integrated solar modules with high efficiency photovoltaic materials can supplement our electrical generation capability, as stricter building codes and improved insulation can decrease the energy used to heat and cool buildings.

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