海洋硫酸盐还原菌群处理烟气脱硫废水

针对高盐硫酸根废水的特性，从海底沉积物中富集得到1个硫酸盐还原菌菌群SRB．2，并研究了盐度、温度、pH值、碳源、硫酸根浓度和铁形态对其活性的影响．结果表明，SRB-2为嗜盐中温硫酸盐还原菌群，可以利用乙醇及乳酸为单一碳源，最佳生长温度为30～40℃，最佳生长pH值为7．4～8．3，SRB．2菌群能够在硫酸根浓度为5200mg／L或盐度为60g／L的条件下正常生长，还原铁粉对该菌群还原硫酸根的能力具有加强作用，而二价铁离子则抑制细菌活性．扫描电子显微镜及光学显微镜对菌体形态研究发现，在反应器填料表面，该菌群中有大量短竿状及螺旋状细菌黏附，而在底部，主要为表面覆盖大量黑色粘稠物质，由短竿状细菌组成，推测其可能是菌种SRB-2—64（GenBank序列号：EU167911）的堆积

海洋硫酸盐还原菌群处理烟气脱硫废水

针对高盐硫酸根废水的特性,从海底沉积物中富集得到1个硫酸盐还原菌菌群SRB-2,并研究了盐度、温度、pH值、碳源、硫酸根浓度和铁形态对其活性的影响.结果表明,SRB-2为嗜盐中温硫酸盐还原菌群,可以利用乙醇及乳酸为单一碳源,最佳生长温度为30～40℃,最佳生长pH值为7.4～8.3,SRB-2菌群能够在硫酸根浓度为5200mg/L或盐度为60g/L的条件下正常生长,还原铁粉对该菌群还原硫酸根的能力具有加强作用,而二价铁离子则抑制细菌活性.扫描电子显微镜及光学显微镜对菌体形态研究发现,在反应器填料表面,该菌群中有大量短竿状及螺旋状细菌黏附,而在底部,主要为表面覆盖大量黑色粘稠物质,由短竿状细菌组成,推测其可能是菌种SRB-2-64(GenBank序列号:EU167911)的堆积

海洋硫酸盐还原菌群处理烟气脱硫废水

针对高盐硫酸根废水的特性，从海底沉积物中富集得到1个硫酸盐还原菌菌群SRB．2，并研究了盐度、温度、pH值、碳源、硫酸根浓度和铁形态对其活性的影响．结果表明，SRB-2为嗜盐中温硫酸盐还原菌群，可以利用乙醇及乳酸为单一碳源，最佳生长温度为30～40℃，最佳生长pH值为7．4～8．3，SRB．2菌群能够在硫酸根浓度为5200mg／L或盐度为60g／L的条件下正常生长，还原铁粉对该菌群还原硫酸根的能力具有加强作用，而二价铁离子则抑制细菌活性．扫描电子显微镜及光学显微镜对菌体形态研究发现，在反应器填料表面，该菌群中有大量短竿状及螺旋状细菌黏附，而在底部，主要为表面覆盖大量黑色粘稠物质，由短竿状细菌组成，推测其可能是菌种SRB-2—64（GenBank序列号：EU167911）的堆积

Analysis of Radioimmunological Image of131I-McAbJH107 in Nude Mice BearingHuman Liver Cancer BEL-7402

用氯胺T碘标技术标记抗人肝癌单克隆抗体JH107（MCAbJH107），观测其在载人肝癌bEl7402裸鼠模型上的分布显像情况，氯胺T碘标法标记率50%。每鼠腹腔注射200CI131Ⅰ-MCAbJH107，放射性物质第24H开始在肿瘤部位浓聚、逐步加强，96H达高峰，肿瘤组织较清楚显像并维持至148H；同时周围组织放射性本底逐步减弱、消失。对照组131Ⅰ-nIgg呈全身均匀分布。无明显放射性物质浓聚及清楚显像。在48H和96H，131Ⅰ-MCAbJH107在12种正常组织（脑除外）的T/nT均值分别为3.38和6.26，而131Ⅰ-nIgg的T/nT均值均低于1.0。he monoclonal antibody JH107,(McAbJH107)against human liver cancerwas labelled by the ch-T131 I-radiolabelling method.Its distribution andimage were detected in the nude mice bearing human liver cancer BEL-7402.Injecting 200 1 131 I-McAbJH107 to each mouse peritoneally the con-centrating of the radioactive substance at the site of the tumor began at24th and strengthened progressively, and reached its top at 96th.Theclearer image of tumor tissue was kept to 148th.At the same time,theradioactive background of the tissues around the tumor gradually disappea-red.In131I-NIgG of the control group well-distributed in the whole body,no signiFicant concentration and no clear image were observed.At 48 and96th, T/NT mean values of 131I-McAbJH107 in normal tissues of 12 kinds(except the brain ) were 3.38 and 6.26 respectively, and ones of 131I-NIgGwere lower than 1.0福建省计委、卫生厅”八五”科技攻关资

低渗透油气田“层内爆炸”增产技术研究

我国目前在低渗透油气田（渗透率为0．1×10^-3-50×10^-3um^21的开发中主要采用水力压裂和酸化技术改造油层，但在渗透率很代的油气藏，只有在水力压裂形成的主裂缝邻域的油气可以通过岩石中原有微小孔隙流入主裂缝产出，而离主裂缝较远的油气仍难采出，我国近10年探明的低孔低渗油层储量约占该期全国探明储量的一半，如何提高广泛分布的层互层低渗透油层的采收率，是我国石油工业面临的亟待解决的问题

新重丰中子同位素~（239）Pa

用５０ＭｅＶ／ｕ１８Ｏ离子同天然铀靶反应产生了新重丰中子同位素２３９Ｐａ．用放射化学法从反应产物中分离Ｐａ活性，通过观测２３９Ｐａ及子体２３９Ｕ衰变所得到的结果显示：首次合成和鉴别了新重丰中子核素２３９Ｐａ，并测定出２３９Ｐａ的半衰期为１０６±３０ｍｉｎ．A new heavy neutron-rich isotope (239)Pa has been observed for the. first time in the interaction of 50MeV/u (18)O with (nat)U targets. Protactinium products were separated radiochemically from the complex mixture of the reaction products. The results observed from the decay of (239)Pa and its daughter (239)U show that a new heavy neutron-rich isotope (239)Pa was produced and identified. The measured half-life is 106±30 min.国家自然科学基金,中国科学院八·五重大项

新重丰中子同位素~（175）Er的合成和γ衰变

用１４ＭｅＶ中子轰击天然镜靶，通过１７６Ｙｂ（ｎ，２ｐ）１７５Ｅｒ反应，首次合成了新同位素１７５Ｅｒ．利用γ（Ｘ）谱学方法，对１７５Ｅｒ的活性进行了观测，发现了能量为７６．５，１２０．９，１２３．７，１２８．５，２２７．３，２３４．０，２８１．４，１１６７．５ｋｅＶ半衰期为１．２±０．３ｍｉｎ的八条新γ射线，并指定为１７５Ｅｒ的β－衰变．建立了１７５Ｅｒ的部分衰变纲图

JUNO Sensitivity on Proton Decay p→νˉK+p\to \bar\nu K^+ Searches

The Jiangmen Underground Neutrino Observatory (JUNO) is a large liquid scintillator detector designed to explore many topics in fundamental physics. In this paper, the potential on searching for proton decay in $p\to \bar\nu K^+$ mode with JUNO is investigated.The kaon and its decay particles feature a clear three-fold coincidence signature that results in a high efficiency for identification. Moreover, the excellent energy resolution of JUNO permits to suppress the sizable background caused by other delayed signals. Based on these advantages, the detection efficiency for the proton decay via $p\to \bar\nu K^+$ is 36.9% with a background level of 0.2 events after 10 years of data taking. The estimated sensitivity based on 200 kton-years exposure is $9.6 \times 10^{33}$ years, competitive with the current best limits on the proton lifetime in this channel