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Effects of Rice Straw Silicification and Characters of Extraction Biogenic Silicon on the Degradation of Fibrous Components in Rice Straw

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Agricultural Sciences in China 2002年第3期1卷 342-348页

作者： SHEN Heng-sheng, CHEN Jun-chen and Ni De-bin(Fujian Academy of Agricultural Science, fuzhou 350003 Huazhong Agricultural University, Wuhan 430070) Fujian Academy of Agricultural Science Fuzhou 350003 Huazhong Agricultural University Wuhan 430070

Straw of seven rice varieties with early-, middle- and late maturity was collected from Huazhong Agricultural University in Hubei. A study was carried out for rice straw in the aspects of the characters of straw silicification and extraction biogenic silica (EBSi), the relationship between characters of EBSi and kinetic characteristics of degradation of fibrous components in fistulated cows, as well as the effect of urea treatment on rice straw desilicification. Although total silica content (ADISi) in rice straw was similar, the efficiency of extraction biogenic silica (EEBSi) and cellulose in early varieties were significantly higher than those in middle (18.9% and 9.1 %) and late ones (26.1% and 11.2%). The degradability of EBSi and cellulose of early varieties were higher than those of middle by 70.0% and 17.5%, and of late varieties by 47.8% and 23.7% , respectively. The in sacco degradability and in vitro VFA production of early varieties were also higher than those of middle by 14.5% and 19.0%, and late by 12.9% and 14.8%. Comparing the morphological fractions of the rice straws, EEBSi, cellulose content, and in vitro VFA production were different with the order of blade < sheath < stem. A significant correlation was found between the contents of EBSi and cellulose (r= 0.86), and the two contents were remarkably correlated with the potential straw degradability (a + b) by r = 0.90 and 0.84 respectively. Therefore, EBSi in rice straw was a main factor affecting the potential degradability of rice straw, rather than the ADISi of straw. Urea treatment improved rice straw degradability, degradation rate and potential degradability by 10.8% , 27.9% , and 10.1% respectively, compared to untreated straws.

关键词： Rice straw Silicification Extraction biogenic silica Straw fibrous degradation Fistulated cow

Studies on Growing Edible Fungi on Improved Straw from a Dual Use Rice Cultivar

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Agricultural Sciences in China 2002年第8期1卷 871-877页

作者： ZHENG Jin-gui, CHEN Jun-chen, YANG Jing, ZHENG Kai-bin, YE Xin-fu, HUANG Qin-lou, XIE Bao-gui, CHEN Bing-huan, TU Gai-lin and CHEN Wang-rui( Fujian Agriculture and Forestry University, fuzhou 350002, P. R . China Fujian Academy of Agricultural Sciences,fuzhou 350003, P.R. China) Fujian Agriculture and Forestry University Fuzhou 350002 P.R. China Fujian Academy of Agricultural Sciences Fuzhou 350003 P. R . China

Every year 500 million tons of rice (Oryza sativa L.) straw are generated worldwide, which was almost equal to the production of rice grain. Most straw is not recovered due to the poor quality, high cost or complicated treatment operations. Through genetic improvements, a rice cultivar '201' was developed with both high nutrient content in straw and high grain yield. The results of 15N tracer experiments showed thatls N of urea could be effectively transformed into straw protein of ' 201' and the recovery rate of 15N in the straw of '201' was 104% higher than that of the check 'TY 63'. The straw protein of '201' could be effectively transformed into mushroom protein and the recovery rate of 15N was 21.7% higher than that of 'TY 63'. Using the straw of ' 201' as material to cultivate straw-based edible fungi, improved the yield and protein content of mushrooms. A total of 7.5 mg·ha-1straw of '201' increased the yield and crude protein of the edible mushroom Volvariella volvacea 797 kg yield and 67.9 kg respectively, and increased the yield and crude protein of the edible mushroom Agaricus blazei Murrill 675 kg and 80 kg respectively. The straw powder of '201' could be used to substitute for the same weight of wheat bran to cultivate lignicolous edible fungi, with no significant difference in terms of mushroom yield or the crude protein content. Straw powder could substitute for 20% of total amount of material to grow Auricularia polytricha, Auricularia auricula, Hypsizygus tessulatus, Lentinula edodes and Hericium erinaceus, 8% of that to grow Agrocybe cylindracea and 7.5% of that to grow Flammulina velutipes respectively.

关键词： Rice Oryza sativa Straw quality Breeding Edible fungi

未雨绸缪,多措并举,全力营造和谐有序供用电环境

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华东电力 2005年第6期33卷 13-15页

作者： Fujian Electric Power company(Fujian Electric Power compary, fuzhou 350003, China) 福建省电力公司福州350003

预测了福建2005年“迎峰度夏”供电的严峻形势,在分析了福建“地方经济”“电网负荷”和“客户用电”三个特性后,介绍了福建省电力公司采用的“三个原则”和“三个要素”的6级有序用电预案,最后详细介绍了创新有序用电管理机制,保证供... 详细信息

预测了福建2005年“迎峰度夏”供电的严峻形势,在分析了福建“地方经济”“电网负荷”和“客户用电”三个特性后,介绍了福建省电力公司采用的“三个原则”和“三个要素”的6级有序用电预案,最后详细介绍了创新有序用电管理机制,保证供电秩序和谐稳定的10项措施。

关键词：负荷有序用电需求侧管理

Study on Several Characteristics of Agaricus blazei MurrilStrain J_3 Irradiated by ^(60)Co

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Agricultural Sciences in China 2003年第8期2卷 843-849页

作者： WENG Bo-qi, JIANG Zhi-he, HUANG Ting-jun, CHEN Jian and ZHENG Wei-wen(Fujian Academy of Agricultural Sciences , fuzhou 350003 , P. R. China) Fujian Academy of Agricultural Sciences Fuzhou 350003 P.R.China

A new mutant strain J3 from Agaricus blazei Murril was obtained by 60Co irradiation. The yields of successive generations were increased more than 70% to compare with their original strain. The component analysis on amino acids and fatty acid illuminated that the nutrient value of strain J3 fruiting body was better than the original strain. The apparent nodule structure was found in the hyphea of J3 strain through the observation by scanning electron microscope. RAPD analysis showed the great difference of PCR fingerprints between J3 and its original strain. It is a promising mutant strain for further commercial development in the future.

关键词： Agaricus blazei Murril 60Co irradiation Ultrastructure RAPD analysis Nutrient evaluation

A STRONG MAXIMUM PRINCIPLE FOR p(x)-LAPLACIAN EQUATION

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Annals of Differential Equations 2008年第3期24卷 356-360页

作者： Xiao Qishan (Dept. of Math. and Computer Science, Fujian Radio TV University, fuzhou 350003)

This paper considers a p(x)-Laplacian equation. Under some suitable conditions a strong maximum principle for it is obtained. Our results improve some known ones.

关键词： weak up-solution weak down-solution p(x)-Laplacian equation strong maximum principle

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网络环境下图书馆馆藏资源建设

图书馆论坛 2000年第2期20卷 39-42页

作者：黄淑超福建省图书馆福州350003

本文指出了图书馆馆藏文献资源建设已从收藏单纯的印刷型文献资料 ,转向印刷型文献、网上文献和电子出版物共存互补的轨道上。论述了网络环境下图书馆馆藏资源建设应讲求策略化、社会化、特色化、现代化的必要性。

关键词：网络环境图书馆馆藏建设文献资源建设

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酵母蛋白自溶提取条件及氨基酸测定

台湾海峡 1998年第A12期17卷 169-174页

作者：陈南福建省测试技术研究所福州350003

本文研究了用废啤酒酵母为原料，采用自溶法提取酵母中的蛋白。发现添加质壁分离剂的量及自溶时间与提取率有显著关系。试验表明：质壁分离剂占体积比的7％，温度为55±1℃，时间为3h自溶效果最佳，可使酵母菌体中蛋白质的提取率达到12... 详细信息

本文研究了用废啤酒酵母为原料，采用自溶法提取酵母中的蛋白。发现添加质壁分离剂的量及自溶时间与提取率有显著关系。试验表明：质壁分离剂占体积比的7％，温度为55±1℃，时间为3h自溶效果最佳，可使酵母菌体中蛋白质的提取率达到12．2％，且氨基酸组成符合人体需要，特别是第一限制性氨基酸──赖氨酸含量较高。

关键词：自溶法提取蛋白质质壁分离剂氨基酸酵母

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九运会南拳比赛指定动作的特点与训练

体育科学 2004年第2期24卷 45-47页

作者：陈峰福建省体育科学研究所福建福州350003

通过比赛调研、技术分析、训练实践等方法,研究九运会南拳比赛指定动作的特征,探讨提高指定动作演练成功率的训练规律。认为提高指定动作的演练成功率,是决定南拳套路比赛成绩的一个重要制胜因素,是专项训练的重点和难点;提出了优秀运... 详细信息

通过比赛调研、技术分析、训练实践等方法,研究九运会南拳比赛指定动作的特征,探讨提高指定动作演练成功率的训练规律。认为提高指定动作的演练成功率,是决定南拳套路比赛成绩的一个重要制胜因素,是专项训练的重点和难点;提出了优秀运动员个体专项素质评价标准、技术诊断标准和运动负荷监控模式等指定动作训练监测措施。

关键词：南拳指定动作特征九运会比赛专项训练

SINGULAR PERTURBATION OF BOUNDARY VALUE PROBLEM FOR NONLINEAR HIGHER ORDER ORDINARY DIFFERENTIAL EQUATIONS INVOLVING TWO SMALL PARAMETERS

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Annals of Differential Equations 2006年第4期22卷 517-523页

作者： Lin Surong Dept. of Computer Fujian Broadcasting TV University Fuzhou 350003

The singularly perturbed boundary value problem for nonlinear higher order ordinary differential equation involving two small parameters has been considered. Under appropriate assumptions, for the three cases： ε/μ^2→0 （μ →0）, μ^2/ε →0 （ε → 0） andε = μ^2, the uniformly valid asymptotic solution is obtained by using the expansion method of two small parameters and the theory of differential inequality.

关键词： two-parameters higher order ordinary differential equation boundary value problem singular perturbation.