摘要：文章为了提供一个良好舒适的恒温油槽实验室的空气环境,根据实验室性质和要求,通过示例详细的计算设计了实验室通风系统,为类似实验室通风设计提供一种有益的参考。

摘要：本文介绍了温湿度计校准的系统设备、校准原理,并根据检定规程设计了两种不同的后续校准流程进行耗电量的能耗比选,通过计算得到方案2耗电量较少,具有一定的经济性。

摘要：Efficacious regulation of the geometric and electronic structures of carbon nanomaterials via the introduction of defects and their synergy is essential to achieving good electrochemical ***,the guidelines for designing hybrid materials with advantageous structures and the fundamental understanding of their electrocatalytic mechanisms remain ***,superfine Pt and PtCu nanoparticles supported by novel S,N‐co‐doped multi‐walled CNT(MWCNTs)were prepared through the innovative pyrolysis of a poly(3,4‐ethylenedioxythiophene)/polyaniline copolymer as a source of S and *** uniform wrapping of the copolymer around the MWCNTs provides a high density of evenly distributed defects on the surface after the pyrolysis treatment,facilitating the uniform distribution of ultrafine Pt and PtCu ***,the Pt_(1)Cu_(2)/SN‐MWCNTs show an obviously larger electroactive surface area and higher mass activity,stability,and CO poisoning resistance in methanol oxidation compared to Pt/SN‐MWCNTs,Pt/S‐MWCNTs,Pt/N‐MWCNTs,and commercial Pt/*** functional theory studies confirm that the co‐doping of S and N considerably deforms the CNTs and polarizes the adjacent C ***,both the adsorption of Pt1Cu2 onto the SN‐MWCNTs and the subsequent adsorption of methanol are enhanced;in addition,the catalytic activity of Pt_(1)Cu_(2)/SN‐MWCNTs for methanol oxidation is thermodynamically and kinetically more favorable than that of its CNT and N‐CNT *** work provides a novel method to fabricate high‐performance fuel cell electrocatalysts with highly dispersed and stable Pt‐based nanoparticles on a carbon substrate.

摘要：文章在分析新能源汽车热源的基础上论述新能源汽车冷却系统在新技术革命下的挑战和机遇,概括新能源汽车冷却系统设计流程原理,旨在为相关设计人员提供参考。

摘要：在产教融合生产性实训基地设计了一款在小范围空间行驶的智能小车,基于机器人操作系统(ROS)构建了智能小车的雷达避障、雷达跟随、定位导航和循迹自动驾驶的功能达成的基本方法。该智能小车通过自身所搭配的激光雷达实时检测周边环境的数据信息,输送到相关设备和系统中,经过算法建立二维地图,执行相关设定指令,从而实现自行定位导航和循迹自动驾驶等有关功能。本智能小车是产教融合生产性实训基地提供的产教融合具体实践案例,智能小车的设计、实验可为汽车自动驾驶和智能物流车提供模拟参考。

摘要：为了实现准确、快捷的校准手持式数字万用表的目的,采用电学原理,进行不同台数数字万用表同时校准的实验,进而分析不同台数对校准结果的影响,在确保安全的前提下,探索较优的校准台数方案,结果表明以（3-4）台数字万用表同时校准为宜。