查询词典 B-S

As a continuation of our previous research on syntheses of tetrahydrofuro[3,2-b]furan-1(5H)-one, Dr. Zhang Yi-Jun started the total synthesis of pallavicinin B in 2002, and made strategic achievement in building the bicyclo[3.2.1]octane skeleton.

基于我们小组多年来对具有四氢呋喃并γ-丁内酯子结构的天然产物全合成研究的兴趣，从我们小组张怡隽博士就已经开始了pallavicinin B的全合成研究，并取得了阶段性的进展：成功构建了骨架中下半部的二环[3.2.1]辛酮。

Results Of 4 cases breast MALT-ML, 2 were CCL type, 1 CCL type with blastoid transformation, monotoid Bcell type. By immunohistochemistry, all cases were monoclonity of B-cell with follicular colonization and lymphoepithelia lesions.

结果：4例乳腺MALT-ML中2例为CCL细胞型，1例为CCL细胞型向母细胞样转化，另1例为单核样B细胞型。4例均显示B细胞单克隆性及滤泡克隆化和淋巴上皮病变。

The structural and photocatalytic properties of TiO〓 as well as surface acidity were greatly improved by sulfation. SO〓〓/TiO〓 solid superacid with Hammett constant Ho less than -12.14 was prepared by treating the TiO〓 with 1.0mol. L〓 sulfuric acid solution and then calcining at 450℃ for 3h. When compared to unmodified TiO〓, the SO〓〓/TiO〓 superacid catalyst exhibited higher anatase content, smaller crystal size, higher specific surface area, centralized pore size distribution, and the blue-shifted band edge of uv-vis adsorption spectra. Furthermore, the SO〓〓/TiO〓 superacid also showed excellent reaction activity and stability for CH〓Br photocatalytic decomposition even under the moist reaction conditions. The apparent quantum efficiency of SO〓〓/TiO〓 was 10 times of that of TiO〓 catalyst for the photocatalytic degradation of bromomethane. Therefore, the SO〓〓/TiO〓 superacid catalyst is promising for practical application in environmental remediation.It was found that both L and B acid sites exist on SO〓〓/TiO〓 photocatalyst while only L acid sites on TiO〓 photocatalyst. On the basis of experimental results, the synergistic model of superacidic centers was proposed for SO〓〓/TiO〓 photocatalyst to explain the photocatalytic behavior and the mechanism of superacidifing effects, assuming that the adjacent L and B acid sites induced by SO〓〓 comprise cooperatively the superacidic center on superacid photocatalyst. The group cooperation of the superacidic center could strengthen the surface acidity, increase surface acid sites and the adsorbtion of O〓, promote separation of photogenerated electron-hole pair, enhance the interfacial transfer of charges and reversibility of water adsorption. Consequently the excellent photocatalytic activity, reaction stability and resistibility to humidity of SO〓〓/TiO〓 superacid photocatalyst may attributed to the group cooperated effect of the superacidic center on the photocatalyst.

研究结果表明：SO〓〓与TiO〓表面的结合为螯合式双配位结构；TiO〓光催化剂表面经H〓SO〓浸渍处理后，提高了表面酸性，改善了催化剂结构和光催化性能，当H〓SO〓浸渍浓度为1.0mol.L〓、烧结温度为450℃时，可制得SO〓〓/TiO〓超强酸催化剂(H〓＜-12.14)，其结构和光催化活性得到明显改善，与TiO〓相比，SO〓〓/TiO〓光催化剂的锐钛矿含量高、晶粒小、BET比表面积大、孔径分布集中、光谱吸收边蓝移，具有优异的光催化氧化活性、稳定性及抗湿性能，光催化降解溴代甲烷的表观量子效率比TiO〓催化剂提高了一个数量级，是一种有实际应用前景的高效光催化剂；由此提出了SO〓〓/TiO〓超强酸催化剂表面集团协同作用的超强酸中心模型，认为在SO〓〓/TiO〓超强酸催化剂表面，由SO〓〓诱导的相邻L酸中心和B酸中心组成了集团协同作用的超强酸中心，其集团协同作用显著地增强了催化剂表面酸性、增大了表面酸量及O〓吸附量、促进了光生电子和空穴的分离及界面电荷转移，具有可逆吸附水的性能，是SO〓〓/TiO〓超强酸催化剂具有优异的光催化氧化活性、很好的活性稳定性及抗湿性能的重要原因。

The apparent quantum efficiency of SO〓〓/TiO〓 was 10 times of that of TiO〓 catalyst for the photocatalytic degradation of bromomethane. Therefore, the SO〓〓/TiO〓 superacid catalyst is promising for practical application in environmental remediation.It was found that both L and B acid sites exist on SO〓〓/TiO〓 photocatalyst while only L acid sites on TiO〓 photocatalyst. On the basis of experimental results, the synergistic model of superacidic centers was proposed for SO〓〓/TiO〓 photocatalyst to explain the photocatalytic behavior and the mechanism of superacidifing effects, assuming that the adjacent L and B acid sites induced by SO〓〓 comprise cooperatively the superacidic center on superacid photocatalyst. The group cooperation of the superacidic center could strengthen the surface acidity, increase surface acid sites and the adsorbtion of O〓, promote separation of photogenerated electron-hole pair, enhance the interfacial transfer of charges and reversibility of water adsorption. Consequently the excellent photocatalytic activity, reaction stability and resistibility to humidity of SO〓〓/TiO〓 superacid photocatalyst may attributed to the group cooperated effect of the superacidic center on the photocatalyst.

研究结果表明：SO〓〓与TiO〓表面的结合为螯合式双配位结构；TiO〓光催化剂表面经H〓SO〓浸渍处理后，提高了表面酸性，改善了催化剂结构和光催化性能，当H〓SO〓浸渍浓度为1.0mol.L〓、烧结温度为450℃时，可制得SO〓〓/TiO〓超强酸催化剂(H〓＜-12.14)，其结构和光催化活性得到明显改善，与TiO〓相比，SO〓〓/TiO〓光催化剂的锐钛矿含量高、晶粒小、BET比表面积大、孔径分布集中、光谱吸收边蓝移，具有优异的光催化氧化活性、稳定性及抗湿性能，光催化降解溴代甲烷的表观量子效率比TiO〓催化剂提高了一个数量级，是一种有实际应用前景的高效光催化剂；由此提出了SO〓〓/TiO〓超强酸催化剂表面集团协同作用的超强酸中心模型，认为在SO〓〓/TiO〓超强酸催化剂表面，由SO〓〓诱导的相邻L酸中心和B酸中心组成了集团协同作用的超强酸中心，其集团协同作用显著地增强了催化剂表面酸性、增大了表面酸量及O〓吸附量、促进了光生电子和空穴的分离及界面电荷转移，具有可逆吸附水的性能，是SO〓〓/TiO〓超强酸催化剂具有优异的光催化氧化活性、很好的活性稳定性及抗湿性能的重要原因。

Among them,them of chickens treated with 10KV HVEF increased more significantly than other groups chickens;But the numbers and proliferative function of B lymphocyte in caecal tonsil and gland of Harderchickens treated with 20KV HVEF reduces more significantly than other groups chickens.

其中，10KV高压静电场照射雏鸡盲肠扁桃体和哈德尔氏腺B淋巴细胞增殖功能增强最显著，数量也增加也最为明显；而20KV高压静电场照射雏鸡盲肠扁桃体和哈德尔氏腺B淋巴细胞增殖功能降低最明显。

Methods From 1995.5 to 2004.11, 78 elderly patients of over 65 years old with displaced femoral neck fracture were operated with hip arthroplasty and AO compressive cannular. follow-up period of A ranged from 12 to 96 months(mean,40.3months).The follow-up period of B ranged from 12 to 91 months(mean,41.7month).

将1995年5月～2004年11月我院收治的78例年龄在65周岁以上的有移位的新鲜股骨颈骨折患者进行回顾性，将病例分为A、B两组，A组为人工关节置换组，B组为AO加压空心螺钉治疗组。

Methods From 1995.5 to 2004.11, 78 elderly patients of over 65 years old with displaced femoral neck fracture were operated with hip arthroplasty and AO compressive cannular. The follow-up period of A ranged from 12 to 96 months(mean,40.3months).The follow-up period of B ranged from 12 to 91 months(mean,41.7month).

将1995年5月～2004年11月我院收治的78例年龄在65周岁以上的有移位的新鲜股骨颈骨折患者进行回顾性研究，将病例分为A、B两组，A组为人工关节置换组，B组为AO加压空心螺钉治疗组。

Instead, the 26-year-old figured mostly in the Madrid B-team, Castilla, where he was made captain before being sold to Deportivo La Coruna.

相反，26岁的后卫却在皇马B队占据着重要的位置，在他转会到拉科鲁尼亚之前，他还是皇马B队的队长。

The layers can increase obviously the destiny of microstructure, magnetic properties Br, Hcb, m and compressive strength of the NPMC bonded by plastic. The epoxy coating can improve effectively the corrosion resistance of the NPMC and delay the rust of NdFeB particles, especially the pycno-film of the cathodal electrophoresis epoxy resin plays a dominant role in the achievements. The investigation of the temperature stability of the NPMC bonded by plastic, whose NdFeB magnetic particles are NFZ-1 and Nd〓Fe〓B/α-Fe,〓 made in China, shows that their ergo-temperatures vary with their components.

环氧树脂涂层能有效地改善塑料粘结NdFeB永磁复合材料的耐蚀性，延缓锈蚀的发生，特别是致密的阴极电泳环氧树脂涂层对塑料粘结NdFeB永磁复合材料具有更为优异的防腐作用；国产的NdFeB磁粉（NFZ-1和Nd〓Fe〓B/α-Fe、〓）制成的塑料粘结永磁复合材料的温度稳定性的研究表明〓纳米晶合金制成的塑料粘结永磁复合材料使用温度应不超过100℃，NFZ-1制成的塑料粘结永磁复合材料可在120℃以下工作，Nd〓Fe〓B/α-Fe制成的塑料粘结永磁复合材料可在140℃以下工作。

The ovaries were excised in the group A, B, C, and the celiotomy was done in the group D (no-excise ovaries). Twelve weeks after the operation, group A, D were administed stilled water 10ml per kilogram every day; group B were administed extract of Bushen Yigu recipe 10ml per kilogram every day; group C were administed water solution of α-D3 soft gelatin capsule 10 ml per kilogram every day.

取12周龄Wistar雌性大鼠40只，随机分为模型组、治疗组、阳性时照组、正常对照组4组，每组10只。D组行假手术，其余3组行完整双侧卵巢摘除术，术后常规饲养12周。A、D组以蒸馏水10ml/kg灌胃，B组以10ml/kg补肾益骨方提取液灌胃，C组以10ml/kgα-D3胶丸水溶液灌胃。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。