Putting the U in carbon capture and storage: rhetorical boundary negotiation within the CCS/CCUS scientific community

This paper examines responses to a framing shift from carbon capture and storage (CCS) to carbon capture, utilization, and storage (CCUS) within science and engineering professionals’ communication. We argue that the framing shift is a breach in the rhetorical boundaries of the CCS professional community that calls forth negotiation through responses that proactively support, resist, or acquiesce. This study offers a heuristic for examining scientific framing in expert-to-expert internal scientific rhetoric. It also contributes to contemporary research on the intersection of rhetoric of science and science, technology, and society; the social dimensions of CCS; energy communication; and applied communicative practices in scientific communities.     

数字功率跟随技术在风光互补发电系统中的应用

风能、太阳能作为无污染的绿色能源具有广阔的发展前景,但是其随机性和不稳定性是风光互补发电系统中应尽可能克服的问题。本文介绍了以ATMEGA8单片机为核心组成风机和太阳能发电的功率跟随技术,以最大限度的利用风能和太阳能。     

激发态O_2转变为基态O_2的实验证明及理论解释

通过H2O2在强碱性溶液中产生红光的实验,计算得到了由激发态O2到基态O2所产生光子的波长,并从理论上对实验现象做了解释.     

拓扑指数mG与卤化物的晶格能和标准生成焓的关系

在Randic分子价连接性拓扑指数的基础上,将Randic的δi修改为原子结构特征参数δi'(δi'=Zi2×(Xpi)0.5/ni其中Zi,Xpi,ni分别为原子i的氧化数,Pauling电负性和所处的周期数),构建了无机分子的连接性指数mG(mG=∑(δi'×δj'×δk'×…)0.5),其具有优异的结构选择性,用其0,1阶指数0G、1G及(0G)2与碱金属卤化物的晶格能、过渡元素卤化物的标准生成焓相关联,拟合得到两个回归方程(U=403.86+899.5081G,△fHm⊙=33.571+139.644(0G)2-400.7351G),相关系数分别为0.9954、0.9680,预测取得了较好的结果.     

Movement velocity as a measure of exercise intensity in three lower limb exercises

The purpose of this study was to investigate the relationship between movement velocity and relative load in three lower limbs exercises commonly used to develop strength: leg press, full squat and half squat. The percentage of one repetition maximum (%1RM) has typically been used as the main parameter to control resistance training; however, more recent research has proposed movement velocity as an alternative. Fifteen participants performed a load progression with a range of loads until they reached their 1RM. Maximum instantaneous velocity (V_max) and mean propulsive velocity (MPV) of the knee extension phase of each exercise were assessed. For all exercises, a strong relationship between V_max and the %1RM was found: leg press (r²_adj = 0.96; 95% CI for slope is [?0.0244, ?0.0258], P < 0.0001), full squat (r²_adj = 0.94; 95% CI for slope is [?0.0144, ?0.0139], P < 0.0001) and half squat (r²_adj = 0.97; 95% CI for slope is [?0.0135, ?0.00143], P < 0.0001); for MPV, leg press (r²_adj = 0.96; 95% CI for slope is [?0.0169, ?0.0175], P < 0.0001, full squat (r²_adj = 0.95; 95% CI for slope is [?0.0136, ?0.0128], P < 0.0001) and half squat (r²_adj = 0.96; 95% CI for slope is [?0.0116, 0.0124], P < 0.0001). The 1RM was attained with a MPV and V_max of 0.21 ± 0.06 m s^?1 and 0.63 ± 0.15 m s^?1, 0.29 ± 0.05 m s^?1 and 0.89 ± 0.17 m s^?1, 0.33 ± 0.05 m s^?1 and 0.95 ± 0.13 m s^?1 for leg press, full squat and half squat, respectively. Results indicate that it is possible to determine an exercise-specific %1RM by measuring movement velocity for that exercise.     

喷雾干燥过程的能耗分析与节能

喷雾干燥是能耗较大的单元操作，为找到操作过程中降低能耗的途径，达到节能要求，研究了节能分析的基本方法、节能的影响因素和节能措施，对喷雾干燥过程中的热量分配作了计算分析，并根据喷雾干燥过程的研究及程序的编制分析评价了各种操作因素对干燥过程能耗的影响，给出了干燥过程的节能措施。     

河南省寒冷地区采暖居住建筑节能设计计算流程的探讨

作者在实践工作总结的基础上，设计了一套较为系统的河南省寒冷地区采暖居住建筑节能设计计算流程。     

可再生能源在空调领域的应用

在空调领域中使用可再生能源是解决现有空调技术存在问题的根本途径。本文介绍了使用可再生能源的地源热泵、太阳能空调系统的工作原理，分析了它们的特点和应用前景。     

运动训练领域中的运动负荷研究

对运动训练理论中的运动负荷进行了分析.运动员训练的成败在于合理、科学安排运动负荷,研究旨在完善运动训练理论,为广大体育工作者提供参考.     

不同室内环境的光照变化与花卉应用研究

测定不同室内环境的光照强度,观察光照的动态变化,为室内花卉的应用提供理论依据。结果表明：居室内光照强度范围为3054-16123 Lx,较适合阴性花卉的应用;实验室内光照强度范围为3944-17420 Lx,较适合阴性花卉和半阴花卉的应用。