Treatment and hydraulic performances of the NiiMi process for landscape water

This paper describes the NiiMi process designed to treat landscape water. The main aim of the research was to investigate the feasibility of NiiMi for removing organic and nutriment materials from landscape water. During the batch-scale NiiMi operation, the removal rates of color ranged from 66.7%o-80% , of turbidity from 31.7%-89.3%o, of chemical oxygen demand （COD） from 7%-36.5%, of total phosphor （TP） from 43%-84.2%, of soluble phosphate from 42.9%-100%, of total nitrogen （TN） from 4.2%-46.7%, and of NH4^＋-N from 39.3%-100% at the hydraulic loading of 0.2 m^3/（m^2·d）. Results showed that the removal efficiencies of COD, TP, soluble phosphate and TN decreased with the decline in the temperature. The NiiMi process had a strong shock loading ability for the removal of the organics, turbidity, TP, soluble phosphate, TN and NH4^＋-N. Three sodium chloride tracer studies were conducted, labeled as TS 1, TS2, and TS3, respectively. The mean hydraulic retention times （mean HRTs） were 31 h and 28 h for TSI and TS2, respectively, indicating the occurrence of a dead zone volume of 12% and 20% for TS 1 and TS2, respectively. TS 1 and TS2 displayed the occurrence of short-circuiting in the NiiMi system. The comparison results between TS1 and TS2 were further confirmed in the values obtained for some indicators, such as volumetric efficiency （e）, short-circuiting （S）, hydraulic efficiency （2） and number of continuously stirred tank reactors （N）.     

我国社会治安综合治理的模式选择

社会治安综合治理是当代中国的一大创造,社会转型初期开始实行的社会治安综合治理模式难以应对多重社会矛盾的挑战和满足社会转型期公域治理的需要。鉴于我国公域之治对软法的倚重,现时期应以软法主导、硬法辅助和以软法整合分散硬法的两种路径构建我国社会治安综合治理的新模式。     

常见中草药饲料添加剂在水产养殖中的应用

中草药具有来源广、资源丰富以及无抗药性、无药害残留等特点。本文阐述了几种常见中草药作为饲料添加剂在水产动物养殖中的应用。     

Pancreatic somatostatinoma with obscure inhibitory syndrome and mixed pathological pattern

Somatostatinoma is a very rare neuroendocrine tumor that originates from D cells and accounts for less than 1% of all gastrointestinal endocrine tumors. The duodenum is the most frequent site for this tumor, followed by the pancreas. We here describe a 46-year-old Chinese woman who developed pancreatic somatostatinoma presenting with the characteristic “inhibitory” syndrome, but the symptoms were obscure and seemingly uncorrelated. This case is also unique for its large tumor size and mixed pathological pattern. Distal pancreatectomy was performed, and the patient has remained well since operation. As the syndromes of somatostatinoma may be obscure and atypical, clinicians should review all clinical findings to obtain an accurate diagnosis. Aggressive surgery is preferred to improve the survival.     

Metachronous contralateral testicular and bilateral adrenal metastasis of chromophobe renal cell carcinoma: a case report and review of the literature

Chromophobe renal cell carcinoma(ChRCC) metastatic to the testis has not,to the best of our knowledge,been reported in the literature.Nor have there been reports of delayed bilateral adrenal metastasis of ChRCC.Here we report a case of metachronous contralateral testicular and bilateral adrenal metastasis of ChRCC in a 70-year-old man who underwent right radical nephrectomy for RCC six years ago.He was admitted to the hospital because of left intrascrotal enlargement of two-month duration.Ultrasonography re...     

Arachnoid cell involvement in the mechanism of coagulation-initiated inflammation in the subarachnoid space after subarachnoid hemorrhage

Objective: To assess if arachnoid cells have the capability to present antigen and activate T-lymphocytes after stimulation by bloody cerebrospinal fluid (CSF), and to illuminate the mechanism of coagulation-initiated inflammation in the subarachnoid space after subarachnoid hemorrhage (SAH). Methods: Arachnoid cells were cultured, characterized, and examined by immunofluorescence for the basal expression of human leukocyte antigen-DR (HLA-DR). Expression of HLA-DR, after co-culturing arachnoid cells in vitro with bloody CSF, was investigated by immunofluorescence and flow cytometry (FCM). The variation of arachnoid cells' ultrastructure was observed by transmission electron microscope (TEM). Arachnoid cells were co-cultured with peripheral blood mononuclear cells (PBMCs). The content of soluble interleukin-2 receptor (sIL-2r) in culture medium was detected by enzyme-linked immunosorbent assay (ELISA). Results: (1) Arachnoid cells were successfully cultured for many passages. The immunofluorescent staining was positive for HLA-DR in over 95% of the human arachnoid cells. The punctate HLA-DR was distributed in cytoplasm and not in the karyon. (2) After co-culturing arachnoid cells in vitro with bloody CSF, numerous particles with strong fluorescence appeared in the cytoplasm on Day 6. On Day 8, the quantity of particles and fluorescent intensity were maximal. FCM showed that the percentage of HLA-DR expressing cells was (2.5±0.4)% at the first 5 d, increasing to (60.8±3.6)% on Day 7. (3) After co-culturing arachnoid cells in vitro with bloody CSF, many lysosome and secondary lysosome particles were present in the cytoplasm. Hyperplasia of rough endoplasmic reticulum and enlarged cysts were observed, with numerous phagocytizing vesicles also observed at the edge of the arachnoid cells. (4) Arachnoid cells stimulated by bloody CSF were co-cultured in vitro with PBMCs. The content of sIL-2r in the culture medium, having been maintained at around 1.30 ng/ml during the first 3 d, had increased by Day 4. The content of sIL-2r peaked 7.53 ng/ml on Day 7 and then reduced gradually. Conclusions: (1) Basic HLA-DR expression is present in arachnoid cells. (2) After stimulation by bloody CSF, arachnoid cells have the potential to serve as antigen presenting cells (APCs) and the ability to activate T-lymphocytes, indicating that arachnoid cells are involved in the mechanism of coagulation-initiated inflammation in the subarachnoid space after SAH.     

搜索引擎在翻译实践和翻译研究中的应用

互联网既是连接世界网民的一个无形纽带,又是所有网民都参与建造的一个巨大信息库。搜索引擎是开发利用这一巨大信息库的一把金钥匙。文章探讨了搜索引擎在翻译实践中辅助特殊词汇和文本的翻译以及在翻译研究中辅助参考文献编写的若干方法。     

敏捷方法与传统软件工程方法在通用型网络考试系统开发中的应用比较

在分析和比较传统软件方法与敏捷方法,结合现代软件开发过程所面临的业务需求变化频繁的特点,以通用型网络考试系统开发的实际需求为背景,介绍敏捷方法在项目实践中的应用.     

改革中学物理教材内容浅议

培养学生的创新精神和实践能力是实施素质教育的重点 ,而实施素质教育的主渠道仍然是课堂教学。所以 ,要培养创新人才、实施素质教育 ,课堂教学的主要工具———教材必须改革。我们现在的初中物理需要学生动手做的实验只有１９项 ,而德国初中的物理实验要求学生动手做的多达２４５项。我们的学生到了社会后 ,适应性很差 ,这反映了我们的教材内容与社会严重脱节。现行的物理教材主要缺陷有两个 :其一 ,教材内容陈旧 ,滞后于知识创新和发展 ,影响了新思维的产生。翻开我们中学物理教材 ,从初中到高中 ,主要内容是牛顿经典力学、电磁学、光学、…     

香港职业训练局人力资源管理模式及启示

高职教育在高等教育结构中占据着重要地位,担负着为国家培养高素质技能型人才的重任.现代高职教育在我国起步较晚,为探索符合国际化办学规律的高职教育办学道路,必须主动学习、吸收、借鉴职业教育发达国家和地区的经验和做法.在这方面,香港职业训练局的人力资源管理模式可以为我们提供有益的启示.