慢性乙型肝炎患者肝组织HBcAg表达模式与中医证型的关系

目的:观察慢性乙型肝炎(CHB)患者肝组织乙型肝炎核心抗原(HBcAg)表达模式与中医证型及肝组织炎症、纤维化等指标的关系并进一步探讨相应的机制。方法:选择CHB患者556例,均进行中医辨证分型及肝组织活检,测定肝组织HBcAg表达模式、炎症、纤维化程度及ALT、AST、HBV DNA水平。结果:(1)556例患者按中医辨证标准分为6组:瘀血阻络证44例、肝肾阴虚证42例、肝郁气滞证48例、肝郁脾虚证282例、湿热蕴结证140例、脾肾阳虚证0例;按HBcAg表达模式分HBcAg阴性组42例、胞浆型HBcAg组186例、胞浆优势型HBcAg组290例、浆核各半型HBcAg组38例。(2)经Spearman秩相关分析,肝组织HBcAg表达模式与肝组织炎症活动度、纤维化程度均呈负相关;经Fisher确切概率检验,肝组织HBcAg表达模式与中医证型分布具有相关性。结论:肝组织HBcAg表达模式与中医证型、肝组织炎症、纤维化程度均有相关性;HBcAg阴性组、胞浆型HBcAg组及肝郁脾虚证、湿热蕴结证多处于慢性乙型肝炎活动期,正气未伤,免疫功能较强,为抗病毒治疗的较佳时机。国家自然科学基金项目(No.81503529,No.81673660);;福建省科技计划引导性项目(No.2015D007,No.2016D012);;厦门市科技惠民项目(No.3502Z20174028);;厦门市重要重大疾病联合攻关项目(No.3502Z20179047);;福建中医药大学基金项目(No.XB2016080)~

Deposition p-Type Microcrystalline diamond Films on Quartz Grass Using Radio Frequency PCVD

利用射频化学气相沉积法，通过硼的掺杂，在石英玻璃衬底上生长出P型微晶金刚石薄膜，范德堡法的测试表明，我们得到的薄膜最小电阻率为4x10-2Ω.CM，最大空穴迁移率为50CM/V.S；从电阻率与温度关系近似计算出杂质激活能p-Type polycrystalline diamond Films were prepared on quartz grass by radio Frequency plasma assisted chemical vapor deposition (PCVD), and doped with boron.The surFace morphologyl crystal structure and some physical properties of the Films were examined by transmission electron microscopy, UV-visible transmission spectrum.The test of Van der Pauw method comFirmed that the lowest electric resistivity of the Films is 5 × 10-2.cm, and the highest hole mobility of the Film is 50cm2/V.s

Deposition Microcrystallne Diamond Film on QuartZ Glass Using Radio Frequency PCVD

利用射频等离子体化学气相沉积法（r，f.PCVd），在石英玻璃上生长出透明均匀的薄膜，经过电子衍射，激光喇曼散射，可见光透过率等测试，证明是金刚石薄膜，通过透射电子显微镜看不到颗粒。polycrystalline diamondFilms have been prepared on quartz glass by means ofradio Frenquency plasma assisted chemical vapor depositlon(PCVD).The surFace morphology,crystall structure and some physical properties of the Films are examined by Raman oscopy transs-mission electron microscopy,IR and UV-visible oscopies,It is conFirmed that the Film is com-posed of microcrystalline diamond

改进铜基甲醇合成催化剂XNC208的TPD、TPO和TPR研究

采用ＴＰＤ、ＴＰＯ和ＴＰＲ等方法对比研究了改进铜基甲醇合成催化剂ＸＮＣ２０８和工业催化剂Ｃ２０７．结果表明，改进的ＸＮＣ２０８催化剂工作表面Ｃｕ￣＋活性位的浓度比未经改进工业催化剂Ｃ２０７高；在甲醇合成实际操作温度下，催化剂工作表面可以维持较高的、对甲醇合成反应能作出贡献的吸附氢和吸附ＣＯ等表面反应物种的稳态浓度，从而有利于甲醇合成速率的提高；改进的ＸＮＣ２０８催化剂工作表面的Ｃｕ￣＋位具有较大的价态稳定性，显示出较强的抗深度还原和抗氧化的双重性能，这与该催化剂具有持久的低温活性和高的热稳定性有着密切的联系

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

JUNO sensitivity on proton decay p → ν K + searches*

The Jiangmen Underground Neutrino Observatory (JUNO) is a large liquid scintillator detector designed to explore many topics in fundamental physics. In this study, the potential of searching for proton decay in the $p\to \bar{\nu} K^+$ 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 suppression of 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% ± 4.9% with a background level of $0.2\pm 0.05({\rm syst})\pm$$0.2({\rm stat})$ events after 10 years of data collection. The estimated sensitivity based on 200 kton-years of exposure is $9.6 \times 10^{33}$ years, which is competitive with the current best limits on the proton lifetime in this channel and complements the use of different detection technologies