电极移动速度效应检测仪系统的研究

分析了国际静电放电测试研究领域现有的各种测试研究装置特点，为克服已有测试装置缺陷本团队研发设计出一种全新的静电放电测试研究系统—电极移动速度效应检测仪。对其结构设计特点、功能进行了分析。我们研制的新型静电放电测试系统兼具实现真实直线运动准确调节和多环境因素可控的优点，彻底解决了困扰国际电磁兼容静电放电研究领域电极需高速向靶移动放电与避免强烈撞击损坏仪器的难题，实现了对多种因素影响逐一准确控制，为静电放电性质更为深入广泛的研究提供了新的手段和平台。     

HN3的安全性测试

利用一套安全测试系统,实验研究了电火花、加热和可见光照射作用下HN3的稳定性,结果表明HN3对电火花非常敏感,而对可见光很稳定,并且至少对小于530K的热作用具有很高的稳定性.     

基于功率流的水泵隔振研究与控制

以某小区水泵隔振治理为例,应用功率流理论对水泵隔振系统中的参数对基础振动的影响进行研究.将水泵隔振系统简化为单层隔振系统的功率流隔振模型,依据电-力类比的方法,通过编写的Matlab应用程序,计算并绘制了质量块有无、质量块质量变化和基础区域面密度对传递到基础的功率流和振动速度的影响曲线.研究表明,质量块对基座的速度和功率流有明显的降低,增加质量块质量对幅值降低的影响不明显,增加基础区域面密度有利于隔振.     

浅析报废汽车拆解厂废水循环处理技术的应用现状

报废汽车的回收拆解处理在我国已经逐渐兴起，但由于该产业尚处于发展初期，环保技术手段和可持续性发展意识还不够，因此在回收拆解过程中会产生大量的废水和其他污液。针对某汽车回收拆解厂的废水特性进行实验研究，形成“电荷凝集过滤一活性炭吸附”组合工艺，对报废汽车回收拆解企业的废水处理提供了一定的参考价值。     

Effects of feed-supplementation and hide-spray application of two sources of tannins on enteric and hide bacteria of feedlot cattle

Pathogenic bacteria attached to the hide or shed in the feces of cattle at slaughter can contaminate carcasses intended to be processed for human consumption. Therefore, new pre-harvest interventions are needed to prevent the carriage and excretion of foodborne pathogens in cattle presented to the processing plant. The objectives of this study were to examine the antimicrobial effects of hydrolysable tannin-rich chestnut and condensed tannin-rich mimosa extracts on bacterial indicators of foodborne pathogens when applied as a hide-intervention and as a feed additive to feedlot cattle. Water (control) or solutions (3 % wt/vol) of chestnut- and mimosa-extract treatments were sprayed (25 mL) at the left costal side of each animal to a 1000 cm² area, divided in four equal quadrants. Hide-swabs samples obtained at pre-, 2-min, 8-h, and 24-h post-spray application were cultured to enumerate Escherichia coli/total coliforms and total aerobic plate counts. In a second experiment, diets supplemented without (controls) or with (1.5 % of diet dry matter) chestnut- or mimosa-extracts were fed during a 42–day experimental feeding period. Weekly fecal samples starting on day 0, and rumen fluid obtained on days 0, 7, 21 or 42 were cultured to enumerate E.coli/total coliforms and Campylobacter. Tannin spray application showed no effect of treatment or post-application-time (P> 0.05) on measured bacterial populations, averaging 1.7/1.8, 1.5/1.6 and 1.5/1.7 (log₁₀ CFU/cm²) for E. coli/total coliforms, and 4.0, 3.4 and 4.2 (log₁₀CFU/cm²) in total aerobes for control, chestnut and mimosa treatments, respectively. Mean (± SEM) ruminal E. coli and total coliform concentrations (log₁₀ CFU/mL) were reduced (P< 0.01) in steers fed chestnut-tannins (3.6 and 3.8 ± 0.1) in comparison with the controls (4.1 and 4.2 ± 0.1). Fecal E. coli concentrations were affected by treatment (P< 0.01), showing the highest values (log₁₀ CFU/g) in fecal contents from mimosa-fed steers compared to controls (5.9 versus 5.6 ± 0.1 SEM, respectively). Total coliforms (log CFU/g) showed the highest values (P< 0.01) in feces from chestnut- and mimosa-fed steers (6.0 and 6.1 ± 0.1 respectively) in comparison with controls (5.7 ± 0.1). Fecal Campylobacter concentrations (log₁₀CFU/g) were affected by treatment (P< 0.05), day (P< 0.001) and their interaction (P< 0.01) with the controls having lower concentrations than chestnut- and mimosa-fed steers (0.4, 1.0, and 0.8 ± 0.3, respectively). It was concluded that under our research conditions, tannins were not effective in decreasing measured bacterial populations on beef cattle hides. Additionally, chestnut tannin reduced E. coli and total coliforms within the rumen but the antimicrobial effect was not maintained in the lower gastrointestinal tract. Further research is necessary to elucidate the possible antimicrobial effects of tannins at site-specific locations of the gastrointestinal tract in beef cattle fed high-grain and high-forage diets.     

燃烧风洞测试系统概况及设计思想

本文介绍了燃烧风洞中测试设备的概况和设计思想。该装置功能包括：测量风洞试验段入口的各种流体和热力学参数、试验段的温度分布、火焰几何参数以及火焰前锋跟踪设备、高速数据采集系统和数据处理软件。本系统能满足各类林火蔓延规律实验研究的需要．     

燃烧风洞的研制及其燃烧特性研究

本文介绍了为可燃物燃烧特性研究而建立起来的模拟自然环境条件的燃烧风洞设备以及在燃烧设备中进行的模拟火场的火蔓延特性研究。在燃烧风洞中进行的可燃物燃烧实验为林火机理的研究、火蔓延模型的建立提供了实验依据．     

文明转型与价值重铸--可持续发展的人道主义思考

本文通过对人道主义思想和可持续发展理念的剖析,阐述了可持续发展理念的内涵和实质对人道主义思想精神内核的质疑,指出现代工业文明价值指针的片面所在,提出随着经济发展和社会进步,人类应该重新审视自然与人的关系,践行“协调”与“和谐”的人地共生论;应该重新审视自然的宽泛价值,认识“非资源”的非经济价值,从而实现文明取向和价值评判上的转型与重铸,以使可持续发展真正得以良性持续。     

APPLICATION OF GREY MODEL AND ARTIFICIAL NEURAL NETWORKS TO FLOOD FORECASTING1

The main focus of this study was to compare the Grey model and several artificial neural network (ANN) models for real time flood forecasting, including a comparison of the models for various lead times (ranging from one to six hours). For hydrological applications, the Grey model has the advantage that it can easily be used in forecasting without assuming that forecast storm events exhibit the same stochastic characteristics as the storm events themselves. The major advantage of an ANN in rainfall‐runoff modeling is that there is no requirement for any prior assumptions regarding the processes involved. The Grey model and three ANN models were applied to a 2,509 km² watershed in the Republic of Korea to compare the results for real time flood forecasting with from one to six hours of lead time. The fifth‐order Grey model and the ANN models with the optimal network architectures, represented by ANN1004 (34 input nodes, 21 hidden nodes, and 1 output node), ANN1010 (40 input nodes, 25 hidden nodes, and 1 output node), and ANN1004T (14 input nodes, 21 hidden nodes, and 1 output node), were adopted to evaluate the effects of time lags and differences between area mean and point rainfall. The Grey model and the ANN models, which provided reliable forecasts with one to six hours of lead time, were calibrated and their datasets validated. The results showed that the Grey model and the ANN1010 model achieved the highest level of performance in forecasting runoff for one to six lead hours. The ANN model architectures (ANN1004 and ANN1010) that used point rainfall data performed better than the model that used mean rainfall data (ANN1004T) in the real time forecasting. The selected models thus appear to be a useful tool for flood forecasting in Korea.     

强化林火扑救力度实施林场有偿扑火

分析了新形势下单纯依赖专业森林消防队伍扑救森林火灾的不足与问题，提出了有偿扑火构想与保证措施。