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1.
This paper evaluates a strategy to promote the uptake of support services by international students (ISs) at an Australian university. As part of their assessment, ISs completed a so-called ‘University Service Reflection Task’ (USRT) in a core first-year course. To complete the USRT, all ISs accessed one support service (e.g. language consultation, study skills workshop, careers guidance), then submitted a written reflection about the experience. Using responses to a questionnaire by 155 participants, the researchers investigated which services ISs attended for the USRT and patterns of prior attendance. Students' perspectives were explored by analysing 73 reflective essays. The results showed that two-thirds of the students participated in a service for the first time in order to complete the USRT and favoured services that had closest application to their coursework. Students expressed positive feelings about their experiences and reported learning gains, particularly in the areas of study skills and development of academic language. 相似文献
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马艳 《宁夏师范学院学报》2014,35(3):70-73
利用超声波降解罗丹明B来测量自制两用式超声波反应器和超声波——环流式反应器的声场,通过测定罗丹明B降解率的变化,研究了超声波反应器和超声环流反应器空化效应,并讨论影响超声波反应器和超声环流反应器的空化效应的因素及不同条件下的声场特征. 相似文献
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疏水蛋白是由丝状真菌分泌的具有特殊性质的蛋白质,在真菌的生长和繁殖中起着非常重要的作用.其最显著的物理特性即能够在亲水-疏水界面通过自组装形成具有两亲性的薄膜使其拥有非常广阔的应用前景.因此有关疏水蛋白自组装方面的研究受到科技工作者的广泛关注. 相似文献
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为了获得高产纤维素酶菌株,有效地开发和利用纤维素资源.本研究通过对野外采集的大型真菌进行分离纯化,获得了16个菌株.利用CMC固体培养、刚果红染色,测量水解圈与菌落直径的比值(H/C值),对获得的菌株进行初筛;通过液体发酵培养,测定其上清液中的滤纸酶活力(FPA),对菌株进行复筛,最终获得了纤维素酶活性较高的菌株01.以稻草和羧甲基纤维素为碳源,研究了培养温度、pH值、培养时间对真菌菌株01产纤维素酶的影响.结果表明,该菌株产纤维素酶的最适培养温度为27℃,pH值为5.0,培养时间为6 d,菌株01的滤纸酶活性达到580.0 IU/mL.因此,真菌01可作为纤维素酶研究和饲料加工等生产的备选菌株. 相似文献
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Experimental Study on Decolorization and Degradation of Reactive Brilliant Red X—3B in a White Rot Fungal Biofilm Reacor 总被引：1，自引：0，他引：1
Experimental results of an azo dye(reactive brilliant red X-3B,RBR X-3B) decolorization and degradation in a white rot fungal biofilm reactor were introduced and discussed.The fungal biofilm reactor is highly potential for dye decolorization and degradation with the highest decoloring rate of 95% within 96 hours reaction time at initial pH 4.5 under high nirogen level (HN) (24mmol/L ammonium tartrate)condition.Experimental conditions.such as nutrient nitrogen levels in reaction mixture and initial pH,significantly affected dye decolorization and degradation.Effluents from this bioilm reactor can be well treated to meet the discharging requirements by use of chemical flocculation.RBR X-3B was first absorbed onto fungal biomass and then degraded gradually,The SH-13 fungus monopolized the biofilm throughout the experiments,though the reactor was exposed to open air for 4 months. 相似文献
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Anaerobic expanded bed reactor （AEBR） is mostly used for the treatment of fairly low strength wastewaters. Since the performance of AEBR largely depends on its hydraulic characteristics, residence time distribution （RTD） method is commonly used for investigation of the hydraulic characteristics of AEBR under different ascending velocity of mixed liquor. In this paper, a pilot-scale AEBR reactor is investigated for treatment of municipal sewage in which lithium chloride is used as a tracer. The results show that the AEBR could be considered as the superimposition of several constant stirred tank reactors （CSTR） and the increase of hydraulic up-flow velocity could increase the number of the CSTR and decrease the volume rate of the dead zone. The optimal up-flow velocity of the investigated AEBR was approximately 1.9 rn/h in the municipal sewage treatment. 相似文献
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In order to reduce the microfauna leakage risk from a granular biological activated carbon （GBAC） reactor which employs granular activated carbon （GAC） as adsorption media in drinking water advanced treatment, a novel fiber and granular biological activated carbon （FGBAC） reactor which employs both GAC and activated carbon fiber （ACF） as adsorption media, was developed. The results showed that the species composition of microfauna leaking from FGBAC reactor is almost similar to that leaking from GBAC reactor, however the densities of microfauna leaking from FGBAC reactor is reduced by 26%-81% compared to those leaking from GBAC reactor. In addition, compared to GBAC reactor, FGBAC reactor can increase the removal efflciencies of chemical oxygen demand （COD） and turbidity by 7% and 10%, respectively, during the stable operation period of reactor. 相似文献
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本研究以NS5-NS6为引物,扩增真菌同源性序列ssu-rDNA片段,建立广范围真菌检测的方法。用此方法扩增医学主要致病真菌、细菌和人体细胞,结果所有真菌均扩增出一个约310bp的产物,而细菌和人体细胞均扩增阴性,1pg白色假丝酵母菌DNA即可检出。 相似文献
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陈晓英 《福建教育学院学报》2007,8(1):122-124
介绍了一种新型水处理设备FEO反应器的作用机理、结构及垃圾渗滤液的特点,通过在惠州市某垃圾渗滤液处理工程中的应用情况,分析了FEO反应器在不同Fe2 投加量及PH值下的处理效果的变化。 相似文献
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几种食用真菌对甘蔗渣利用的研究 总被引：1，自引：0，他引：1
采用液体摇床发酵和固体平板培养技术,以甘蔗渣为唯一碳源,研究灵芝、大球盖菇、金针菇、柱状田头菇四种食用真菌对甘蔗渣的利用情况.测定在四种不同甘蔗渣含量的培养基中各食用真菌所产羧甲基纤维素酶活力和菌丝干重,同时测定了四种茵在平板上的菌丝生长速度.结果表明,灵芝在35g/L液体培养基中所产羧甲基纤维素酶活力最高达831U,所生长茵丝最重达1.162g.固体培养时,金针菇在30g/L生长速度最快达15mm/d. 相似文献
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通过对2个云杉八齿小蠹伴生蓝变真菌的试验研究,结果表明：2个蓝变菌菌株适宜生长温度均为25℃;对酸碱度的适应能力强,在pH4．0～9．0范围内均能生长,在酸性环境下发育较好;以葡萄糖和果糖为最佳碳源,最佳氮源为甘氨酸,此外菌株Ophiostoma penicillatum 1也可很好利用酵母粉．甲基托布津、扑海因对2个试验菌株的生长有极强的抑制效果,百菌清和中生菌素仅对Ophiostoma penicillatum 2有很强的抑制效果,可杀得和硫酸链霉素对所有菌株的抑制作用均不明显． 相似文献
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Khalid M Yang WJ Kishwar N Rajput ZI Arijo AG 《Journal of Zhejiang University. Science. B》2006,7(6):459-466
This study is aimed at identifying and determining the percentage of occurrence frequency of cellulose decomposing soil fungi. The soil samples were inoculated into culture plates prepared in Sabouraud medium under sterilized conditions and incubated at 30 ℃ for 4 to 7 d. The identified fungal species were incubated in self-designed cellulose medium for testing their cellulolytic ability. Forty-two species, including2 nova species, representing sixteen genera showed growth and sporulation in the cellulose medium. Most of the isolated species were from genus Aspergillus and Penicillium. Aspergillus niger and Mucor hiemalis showed highest occurrence frequency （45% and 36% respectively）, as these species were collected from about 80% of soil samples. Being agar free and cheaper, the new fungal medium designed showed results equivalent to Sabouraud medium. 相似文献
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活性炭优良的吸附性能使其在废水处理中得以广泛应用.详细阐述了活性炭吸附在含铬废水、含氰废水,含酚废水等多种废水中的应用研究,并介绍了改性活性炭,活性炭纤维和活性炭与其他水处理技术的联用. 相似文献
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Ramesh Maheshwari 《Resonance》2008,13(6):541-547
Most plants are attached via their roots to specialized fungi. The filamentous hyphae of these fungi extend beyond the nutrient-depleted
zone in the soil, absorbing and supplying nutrients to the plants in exchange for photosynthetically-made carbon compounds
manufactured by the plant. The hyphae also attach to litter and decompose the organic matter, releasing the mineral ions sequestered
in the structural polymers. The mineral ions are absorbed and translocated to the roots. Most plants are so dependent on their
fungal partners for supplying nutrients that they languish or die without them. Our understanding of this fascinating interaction,
to a large extent, has come from the pioneering work of Sir David J Read, FRS, Emeritus Professor of Plant Sciences at the
University of Sheffield, UK.
Ramesh Maheshwari is a former Professor and Chairman of the Department of Biochemistry, Indian Institute of Science, Banglaore.
This is his sixth article for Resonance. 相似文献
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Kubicek CP Komon-Zelazowska M Druzhinina IS 《Journal of Zhejiang University. Science. B》2008,9(10):753-763
Hypocrea/Trichoderma is a genus of soil-borne or wood-decaying fungi containing members important to mankind as producers of industrial enzymes and biocontrol agents against plant pathogens, but also as opportunistic pathogens of immuno-compromised humans and animals, while others can cause damage to cultivated mushroom. With the recent advent of a reliable, BarCode-aided identification system for all known taxa of Trichoderma and Hypocrea, it became now possible to study some of the biological fundamentals of the diversity in this fungal genus in more detail. In this article, we will therefore review recent progress in (1) the understanding of the geographic distribution of individual taxa; (2) mechanisms of speciation leading to development of mushroom diseases and facultative human mycoses; and (3) the possible correlation of specific traits of secondary metabolism and molecular phylogeny. 相似文献
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试验以实验室自配的污水模拟小城镇生活污水,基于悬挂填料AmOn一体化反应器,通过调节蠕动泵转速和气体流量计考察水力停留时间和曝气量对COD(Cr)、NH4+-N、TN、TP去除率的影响。试验结果显示,当HRT=14h时,各污染物去除率分别为89.15%、99.02%、48.59%、32.47%;当曝气量为600 L/h,为89.87%、99.74%、81.3%、35.04%。最终采用层次分析法,从污染物去除效率、处理效率、运行成本三个角度进行综合评价,得出水力停留时间14h、曝气量600L/h的工况为试验的最优工况。 相似文献
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A rapidly growing number of successful genome sequencing projects in plant pathogenic fungi greatly increase the demands for tools and methodologies to study fungal pathogenicity at genomic scale. Magnaporthe oryzae is an economically important plant pathogenic fungus whose genome is fully sequenced. Recently we have reported the development and application of functional genomics platform technologies in M. oryzae. This model approach would have many practical ramifications in design and implementation of upcoming functional genomics studies of filamentous fungi aimed at understanding fungal pathogenicity. 相似文献
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The finite deformation and stress analyses for a rectangular plate with a center void and center void and made of rubber with the Yeoh elastic strain energy function under uniaxial extension were studied in this paper.An approximation solution was botained from the minimum potential energy principle.The num,erical results for the growth of the cavitation and stresses along the edge of the cavitation were discussed.In addition,the stress concentration phenomenon was considered. 相似文献