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| 1 | Widestopband microstrip bandpass filters using quarterwavelength stepped-impedance resonators and bandstop embedded resonators显示文摘 | T.N.Kuo W.C.Chang C.H.Wang | | 0，，06： | 1 |
| 2 | 烧结剂对Nd-Fe-B永磁合金结构和剩磁的影响显示文摘用不同的烧结剂,通过液相烧结一种基本成分的Nd_(140.1)Fe_(79.8)B_(6.3)或者通过烧结同样成分的预熔合金来制造Nd_(15)Fe_(79)B_6磁体。用三种不同Nd含量的富Nd Nd-Fe-B合金作为烧结剂,研究了原材料的各种化合物对发展磁晶结构和提高剩磁的影响。发现对于不同的原材料,在压坯状态,已达到不同程度的磁有序。用较高Nd的烧结剂,产生了较好的磁有序和较高的烧结密度。因此,用烧结剂烧结的磁体,比预熔Nd_(15)Fe_(79)B_6合金磁体,具有更高的剩磁。然而,由于烧结剂的不均匀分布,在一些具有薄晶粒边界的大晶粒中间出现了不规则的晶粒生长,这些小晶粒被厚的富Nd层环绕。在高烧结温度下,由于热骚动使这些小晶粒产生浮动和转动,从而导致结构变坏剩磁降低。 | W.C.CHANG T.B.WU K.S.LIU 张福民 | 1990 | 电工合金文集1990，，4： | 0 |
| 3 | Determination of urine-derived odorous compounds in a source separation sanitation system显示文摘Source separation sanitation systems have attracted more and more attention recently.However, separate urine collection and treatment could induce odor issues, especially in large scale application. In order to avoid such issues, it is necessary to monitor the odor related compounds that might be generated during urine storage. This study investigated the odorous compounds that emitted from source-separated human urine under different hydrolysis conditions. Batch experiments were conducted to investigate the effect of temperature, stale/fresh urine ratio and urine dilution on odor emissions. It was found that ammonia, dimethyl disulfide, allyl methyl sulfide and 4-heptanone were the main odorous compounds generated from human urine, with headspace concentrations hundreds of times higher than their respective odor thresholds. Furthermore, the high temperature accelerated urine hydrolysis and liquid–gas mass transfer, resulting a remarkable increase of odor emissions from the urine solution. The addition of stale urine enhanced urine hydrolysis and expedited odor emissions. On the contrary, diluted urine emitted less odorous compounds ascribed to reduced concentrations of odorant precursors. In addition,this study quantified the odor emissions and revealed the constraints of urine source separation in real-world applications. To address the odor issue, several control strategies are recommended for odor mitigation or elimination from an engineering perspective. | Bianxia Liu Apostolos Giannis Ailu Chen Jiefeng Zhang Victor W.C.Chang Jing-Yuan Wang | 2017 | Journal of Environmental Sciences2017，29，2： | 0 |
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