EFFECT of MEDIUMS ON AGEING PERPORMENCE of AC POWDER ELECTROLUMINESCENT DEVICE

本文研究了介质对交流粉末电致发光器件的发光老化性的影响，用具有特殊性能的水溶性苯丙乳胶作为介质制备的交流粉末电致发光器件，其发光老化性能得到较大幅度提高；并分析了这种发光器件老化的主要原因和机制，提出防止发光老化应注意的问题。The eFFect of the mediums on agening perFormence of AC powder electroluminescent deviCe is tesearched,the special water-soluble phenylpropioniC emulsion used as a medium is introduced into AC powder electroluminescent davids and the ageing perFormence of the device is raised.The main cause and mechanism For the ageing of,lectroluminescent device is analoged and the problems on avoidins ageing is also given as well.国家自然科学基

ナンチョウジ ダウン ショウ ジ ジヘイショウ ジ チテキ ショウガイジ ノ オンカイ ショウノウ ノ ショウガイ ヒカク

金沢大学福井県立福井養護学校石川県小松市立今江小学

Research Trends on Atypical Depression: Based on the Changes in the Number of Articles and the Keywords

　本論文では，非定型うつ病に関する研究の動向を調べ，その背景について検討した．まず，非定型うつ病に関する文献数の推移を概観したところ，非定型うつ病に関する研究が増加傾向にあることが 明らかになった．そして，この推移には，非定型うつ病が DSM で記載されたことが影響を与えてい ると推察された．また，非定型うつ病の定義や診断基準に関する研究の増加も影響を与えていると考 えられた．次に，各文献のキーワードを整理したところ，これまで主に取り上げられてきたキーワー ドは，非定型うつ病や抑うつ障害，双極性障害，薬物療法，診断，治療であることが明らかになった． そのため，これらのキーワードについて，文献の内容を吟味し，非定型うつ病との関連等について確 認した．その結果，近年では，類似する様々な症状との関連についての検討のみならず，より細やか な検討（詳細な病態など）が進められていることが明らかになった．さらに，非定型うつ病の治療に 関する研究としては，薬物療法に関心が向けられていることが明らかになった．　The purpose of this study is to investigate the research trends on atypical depression and discuss the background of the trends. First, we looked into the change in the number of articles dealing with atypical depression, and found an increasing tendency of the studies on atypical depression. The tendency was considered to be supported by the fact that atypical depression was written up in DSM. The increase of the studies relating to the definition and the diagnostic criteria of atypical depression was also considered to be a contributing factor. Then, we organized the keywords extracted from the articles, and found the following keywords frequently appearing: atypical depression, depressive disorders, bipolar disorder, drug therapy, diagnosis and treatment. The contents of the articles were examined to confirm the association of those keywords with atypical depression. The results revealed that not only the researches on the relation between the symptoms of atypical depression and other similar symptoms, but also the detailed researches into atypical depression in terms of the condition and the like have been in progress in recent years. The research trends on the treatment of atypical depression were found to direct toward the drug therapy

ヒト ヒフ トウカ トクセイ オ モホウ スル コウブンシ ジンコウマク ノ チョウセイ ト ヒョウカ

会議

A study on bioremediation of eutrophication of mariculture waters by Gracilaria lemaneaformis

于2002年至2004年期间,在福建省东山岛的八尺门鱼类网箱养殖区、西埔湾对虾养殖区、乌礁湾鲍鱼养殖区等进行了龙须菜(G racilaria lem aneaf orm is)对动物海水养殖造成的富营养化的生物修复研究。结果表明,从围隔实验到小面积的海区实验到大面积的海区推广试点,龙须菜对富营养化的海水均有良好的修复效果。围隔实验中,龙须菜能使网箱养殖区缺氧的海水达到过饱和状态,对无机氮(IN)、无机磷(IP)的去除率达80%以上;实验海区,修复区的溶解氧(DO)浓度明显高于非修复区,IN、IP、叶绿素(Ch l-a)浓度低于非修复区;推广海区,鲍鱼养殖污水流经龙须菜养殖区后,IN、IP得到有效的吸收,DO浓度得到提高。因此,大面积养殖龙须菜对减轻养殖污水对海区的污染,防止水体富营养化,抑制赤潮的发生有积极作用。Eutrophication caused by mariculture has become a serious environmental problem in Chinese coastal waters.Since macroalgae can absorb nutrients and increase the concentration of dissolved oxygen(DO),and can be ultimately removed from water by being harvested,macroalga-based bioremediation of eutrophication would be the best way to solve such environmental problems.The effects of Gracilaria lemaneaformis remediated eutrophication were studied.G.lemaneaformis,red seaweed,originated in Shandong Province,was cultivated on ropes in three typical mariculture areas at Dongshan island,Fujian province where mariculture is advanced.The mesocosm experiment was conducted in Bachimen fish-cage area;the bioremediation experiment——in a field about 3 hm~2 in Xipu bay where the shrimp-farm and urban sewage is discharged;and in the spread application experiment,about 400 hm~2 were tested in Wujiao bay where abalone sewage is discharged.Water quality parameters were monitored during all the experimental stages.According to different tide and depth of the sea,two floating-rafts,i.e.bamboo raft and string raft,were devised to cultivate G.lemaneaformis on ropes in sea.The results demonstrated that the effects of bioremediation of eutrophication of mariculture waters by G.lemaneaformis were obvious regardless to the place of experiment: in mesocosm one,in a small-scale's bioremediation or in large area's spread application.The results of mesocosm experiments showed that G.lemaneaformis increased DO from low concentration to supersaturation and increased DO saturation from about 60% to 200%;in meantime,it absorbed the inorganic nitrogen(IN) and inorganic phosphorus(IP) above 80% during 3～4 days.In bioremediation area in Xipu bay,the specific growth rate of G.lemaneaformis was 9% during the first month and 6% during the next half month.The DO concentration in bioremediation area was significantly higher than that in non-bioremediation area: the highest DO concentration in bioremediation area was 5.6 mg·L~(-1) higher than that in non-bioremediation area in the same monitoring transect,the highest DO saturation was 198.7%.Furthermore,it increased the DO concentration of downstream seawater.And the IN and IP concentrations in bioremediation area were lower than those in non-bioremediation area.Besides,the microaglae were restrained,the concentration of Chlorophyll-a in bioremediation area was lower than that in non-bioremediation area,whereas,the transparence was contrary.In spread application area,when the abalone cultural sewage went through G.lemaneaformis cultural areas,the nitrogen and phosphorus were effectively absorbed.Especially,the IP concentration of abalone cultural sewage discharging area was above 0.05mg·L~(-1),however,that in G.lemaneaformis cultural areas was below 0.015mg·L~(-1).The DO concentration was increased in G.lemaneaformis cultural areas,its saturation was above 120%,the highest one was 166%,but,in non-cultural areas,the DO saturation was about 100% normally.In conclusion,by large farming of G.lemaneaformis in animal maricultural areas,it is possible to alleviate the pollution of marine environment,prevent from eutrophication and control the red tide.At the same time,because G.lemaneaformis was the ideal food for abalone and material to produce agar,it could resolve the problems of the local abalone culture.Hence,large farming of G.lemaneaformis in the eutrophic mariculture areas could reduce environmental impact and increase economic output,and good environmental and economic advantages would be obtained.福建省重大科技资助项目(2002Y005)~

Mycoplasma hyopneumoniae の薬剤感受性試験ならびにマクロライド耐性簡易スクリーニング法の開発

A total of 90 strains of Mycoplasma hyopneumoniae from 70 farms in 10 prefectures, collecting between 2004 and 2005, were investigated to determine in vitro susceptibilities to nine drugs that are considered as an effective antimicrobial agent for mycoplasmas. Seven strains were found resistant to 16-membered macrolide antibiotics and lincomycin. All resistant strains had point mutations either at A2058G (five strains) or A2058G and A2062C (two strains) in 23S rDNA. Strains possessed two mutations showed higher resistance to tylosin than those of one mutation. Been focused on the mutation in 23S rDNA, we developed a rapid detecting technique, using HR-1^TM and LCGreen I^TM, for the screening of macrolide resistant M hyopneumoniae. This technique is on the basis of detection of a point mutation in the limited region on 23S ribosomal RNA. It took four hours to yield a result when a strain was harvested, whereas, eight hours when a lung lesion sample was examined.国内各地域の10道県70農場から2004 ～ 2005年にかけて出荷された肉豚の肺炎病巣部から分離したMycoplasma hyopneumoniae 野外分離90株について薬剤感受性試験を実施した. 供試抗菌薬剤は豚呼吸器マイコプラズマ対策に有効とされる各種薬剤系9種を選択した. 薬剤耐性株は7株見いだされ, いずれもマクロライド系薬剤とリンコマイシンに交差耐性を示した. マクロライド系薬剤はマイコプラズマ感染症対策の特効薬として頻用される抗菌剤であることから, 耐性を示した7株と感受性株について分子生物学的な比較を実施したところ, 耐性株はいずれも23SリボソームRNAに1カ所(2058位A→ G, A2058G) あるいは2カ所(A2058GおよびA2062C) のミューテーションが確認された. そこで当該領域からミューテーションを検出するDNAシーケンス法以外の, より簡便で安価な方法を検討したところPCR産物のDNA蛍光融解曲線解析法の有効性が示唆された. この方法で分離培養菌株を供試した場合, サンプルの処理から結果を得るまでに要する時間は4時間であった. また, 肺炎病巣部の乳剤を材料として実施する場合はnested PCRを実施するため, 結果を得るまでの所要時間は約8時間であった

粉末电致发光的新应用──一种光神经器件

近年来，人工神经网格与神经网络计算机的研究在世界范围内已形成一个热点，本文通过对电致发光材料的各种特性的讨论，分析了固体化平板电致发光作为一种光神经器件的一些特点，指出了它在神经网络实现中有很好的应用前景

Turbulent Noise Generated by a Centrifugal Fan with Inducer

An investigation of aerodynamic characteristics and noise in a centrifugal fan with inducer was conducted with respect to the effects of three parameters: inlet angle, outlet anele and skew anele of the impeller. Moreover, we proposed a new method to calculate the width of wake which is an important parameter to controll the turbulent noise. lt is shown that the inlet anele hardly effects on the turbulent noise but the outlet anele and the skew anele of the blade effect on that. The ODtimum value of the outlet anele is about 48 degree and that of the skew anele is about 10 degree. The exoerimental values of the overall turbulent noise with L-weighting and A-weighting functions aereed well predicted valued

Characteristics of Aerodynamic and Noise for a Centrifugal Fan with Inducer

An investigation of characteristics of aerodynamic and noise for a centrifugal fan with inducer and without inducer was coducted. The noise generated by these two kinds fan consists of the discrete frequency noise and the turbulent noise. The discrete frequency noise can be disintergrated into the rotating noise and noise due to the vibration of motor. The noise level of the later is heiger than that of the former. This discrete frequency noise level can be reduced by make firm the motor support. The overall noise radiated from the fan with inducer is lower than that of which without inducer over wide flow rate. In the pressure and the efficiency, the former is heiger than the latter. The specific noise level of the former is lower than that of the latter. Therefore, the centrifugal fan with inducer is superior to that without inducer. The agreement between the predicted values and measured values of the sound pressure level was generally satisfactory