四川盆地及邻区上二叠统一下三叠统海槽的深水沉积特征

四川盆地及邻区广元-旺苍、城口-鄂西、开江-梁平海槽是上二叠统一下三叠统飞仙关组（P3-T1f）的深水碳酸盐沉积区。该区上二叠统上部大隆组是硅质岩、硅质泥岩、硅质灰岩组合，含放射虫、有孔虫等化石，厚125—29．0m，为海槽裂陷期凝缩沉积。三叠系飞仙关组下部为远洋沉积的暗色泥岩、微晶碎屑灰岩和重力流沉积的浊积岩、角砾灰岩组成的深水碳酸盐沉积，厚50．0～300．0m，是裂陷期后的海槽充填沉积。海槽相区沉积在晚二叠统世末达到最大海泛面沉积了大隆组。海平面缓慢下降期沉积了补偿充填性质的飞仙关组深水碳酸盐岩。海槽相区上二叠统一下三叠统飞仙关组构成了一个完整的三级层序。深水沉积物的有机碳平均值高达6．21％，是良好的烃源岩。但在海槽相区上二叠统不发育生物礁，飞仙关组缺乏鲕粒岩。     

Effects of genotype and treatment on the antioxidant activity of sweet potato in Taiwan

Six genotypes of sweet potato commercially available in Taiwan, including TNG57, TNG66, TNG68, TYY1, RP and WP, were used as samples in this study of the effects of steaming and kneading with pre-steaming treatments on the antioxidant components and antioxidant properties of methanolic extracts. Steam treatment increased the total phenols contents of all genotypes (2–13 times), flavonoids content of RP (1.3 times) and anthocyanins contents of RP and WP (5–6 times). Steam treatment also increased the reducing power and scavenging DPPH radical effect of sweet potato flours. For the methanolic extracts of steamed and kneaded flours, reducing powers were 0.02–1.70 at 5.0 mg ml⁻¹ and the scavenging effects on DPPH radicals were 19–92% at 2.5 mg ml⁻¹. Both showed the order of RP > WP > TYY1 and TNG66 > TNG57 and TNG68. However, the chelating effect of the six genotypes at 1.0 mg ml⁻¹ ranged from 50% to 73%. Contents of total phenols, flavonoids, and anthocyanins of sweet potato flours were significantly positively correlated with the reducing power and scavenging DPPH radical effects. After steaming and kneading treatments, RP showed the highest increase in the contents of total phenols, flavonoids and anthocyanins among the six genotypes studied.     

逆流式气浮过滤一体化净水技术的应用

通过鸡西市自来水公司第一水厂的工程实例介绍了逆流式气浮过滤一体化净水技术的应用。     

积层板的制造方法

概述了积层板的开发背景、制造工艺和最近的开发动向。     

Fabrication of Schottky barrier MOSFETs using self-assembly CoSi2 nanopatterning and spacer gate technologies

A self-assembly patterning method for generation of epitaxial CoSi₂ nanostructures was used to fabricate 50 nm channel-length MOSFETs. The transistors have either a symmetric structure with Schottky source and drain or an asymmetric structure with n⁺-source and Schottky drain. The patterning technique is based on anisotropic diffusion of Co/Si atoms in a strain field during rapid thermal oxidation. The strain field is generated along the edges of a mask consisting of 20 nm SiO₂ and 300 nm Si₃N₄. During rapid thermal oxinitridation (RTON) of the masked silicide structure, a well-defined separation of the silicide layer forms along the edge of the mask. These highly uniform gaps define the channel region of the fabricated device. The separated silicide layers act as metal source and drain. A poly-Si spacer was used as the gate contact. The asymmetric transistor was fabricated by ion implantation into the unprotected CoSi₂ layer and a subsequent out-diffusion process to form the n⁺-source. I–V characteristics of both the symmetric and asymmetric transistor structures have been investigated.     

非线性扩频序列的三项式特性

讨论了三类非线性扩频序列(GMW序列、No序列和Kasami序列)的三项式特性，利用这三类序列的迹表示，证明了GMW序列、No序列和Kasami序列均具有正则三项式对。     

CHAOTIC HYDRODYNAMICS IN HORIZONTAL GAS-LIQUID BUBBLY FLOW

ＮＯＭＥＮＣＬＡＴＵＲＥｄ———ｅｍｂｅｄｄｉｎｇｄｉｍｅｎｓｉｏｎ ,ｄｉｍｅｎｓｉｏｎｌｅｓｓＣｄ(ｒ)———ｃｏｒｒｅｌａｔｉｏｎｓｕｍ ,ｄｉｍｅｎｓｉｏｎｌｅｓｓＮ———ｎｕｍｂｅｒｏｆｐａｉｒｓｏｆｐｏｉｎｔｓｏｎｔｈｅｒｅｃｏｎ ｓｔｒｕｃｔｅｄａｔｔｒａｃｔｏｒ,ｄｉｍｅｎｓｉｏｎｌｅｓｓｒ———ｓｃａｌｉｎｇｄｉｓｔａｎｃｅ ,ｄｉｍｅｎｓｉｏｎｌｅｓｓＤｃ ———ｃｏｒｒｅｌａｔｉｏｎｄｉｍｅｎｓｉｏｎ ,ｄｉｍｅｎｓｉｏｎｌｅｓｓＫ———Ｋｏｌｍｏｇｏｒｏｖｅｎｔｒｏｐｙ ,ｂｉｔｓ/ｓＲ…     

烟机结垢的成因分析及防范措施

通过对烟机垢物的元素和晶体组成进行表征，分析其形成条件，计算验证并探讨垢物的形成过程，并提出应对防范措施。烟机结垢过程为：极少数原料油滴在反应汽化段内未完全汽化，未汽化油黏附在催化剂细粉表面并缩合生焦；部分焦炭颗粒未在再生器内烧尽，进入烟道后继续燃烧达到细粉的熔融温度，转化为液相黏性物质；携带微量高温熔融粉尘的烟气在三级旋风分离器下料口、烟机叶片等部位受高速离心作用，黏附到易结垢部位，形成无定形垢物。可通过提升原料油喷嘴雾化效果，调整合适的剂油比和系统细粉含量来减少烟机结垢。     

分子筛绿色化合成技术的开发

对现有分子筛合成废液中氨氮及还原性物质的来源进行分析，确定降低排放废水中氨氮浓度及COD的方案。对现有ZRP-5分子筛制备流程进行优化，增加母液及赶胺水回用工序；建立母液浓缩装置，将钛硅分子筛及Β分子筛的合成母液及重排母液应用于ZSM-5分子筛的合成，实现废液的梯级利用。上述措施既解决了因分子筛生产废液的排放造成的环境污染，亦因废物资源化降低了ZSM-5分子筛的生产成本。     

西气东输对南水北调穿黄隧洞影响动力分析计算

西气东输管线距离南水北调工程穿黄河隧道的最近距离:河漫滩仅150 m,主河槽仅205 m.输气管线在运行过程中,存在着因误操作、管道腐蚀、自然灾害或人为破坏等因素引发事故发生爆炸的可能.对深泓区穿黄隧洞地下部分在天然气爆炸冲击波作用下的安全性进行动力分析计算,认为西气东输管道破裂引起的天然气爆炸,不会对南水北调输水隧洞产生破坏影响.