DCS系统仿真万案的设计

以和利时公司的SmartPro系统为依托,针对职业实践教学要求设计出接近生产实际的DCS系统仿真方案,其包含电厂控制系统仿真和SmartPro系统组态两部分DCS系统仿真的训练极大地提高了学生的动手能力和工程实践能力,对其他类似实践教学设计有一定的指导意义.     

具有产品R&D的古诺竞争下的R&D策略研究

以具有产品R&D的双寡头竞争模型为基础,研究了产品差异化市场情形下企业R&D策略行为的绩效。从利润最大化角度来看,企业总应该选择研发卡特尔策略。在知识产权保护程度较高且产品是策略替代条件下,从产品产量与质量的角度考虑,政府部门愿意让企业选择研发竞争策略。在知识产权保护程度较低条件下,研发卡特尔比研发竞争更能推动产品质量、产量和企业利润的提高,并且可以改善社会总体福利,因此,政府部门愿意让企业选择研发卡特尔策略。     

明清小说中的武则天形象简论

在明清小说中武则天是一个颇受作者关注的人物。小说家在塑造武则天形象时,大多着眼于她的残忍、荒淫和嗜杀,突出了她的政治野心,因此,武则天基本上是以＂中淫外酷＂的负面形象出现的。小说家削弱了武则天作为一代女皇的政治才能、远见卓识,淡化了她的历史功绩,将这一形象妖魔化或神化,在前人的基础上,小说家更加强了对武则天＂牝鸡司晨＂、＂狐媚惑主＂和＂淫秽宫闱＂的诋毁和道德批判。由于叙事角度不同,明清小说中的武则天形象更加复杂、多样。     

混沌时间序列及MATLAB仿真实现

在非线性系统中,存在着一种非常特殊的系统,即混沌系统,是一种介于确定关系和随机关系之间的状态。文章首先阐述了混沌的基本概念,然后对嵌入维数m和延迟时间τ这两个参数的选取方法做了简要介绍;列举了几个典型的混沌模型,并运用MATLAB软件对其进行仿真实现。     

MATLAB仿真李萨如图形小议

近年来,MATLAB因其具有很好的数据处理功能及强大的绘图功能而在各个领域得到广泛应用。有很多学者已经、正在、可能将来还会做MATLAB仿真李萨如图形的实验。然而笔者在做该实验时,却发现强大的MATLAB软件在做该实验时,却显得有些牵强。     

RRM1 gene expression in peripheral blood is predictive of shorter survival in Chinese patients with advanced non-small-cell lung cancer treated by gemcitabine and platinum

Objective  

To evaluate the predictive values of gene expressions of ribonucleotide reductase M1 (RRM1) and breast cancer susceptibility gene 1 (BRCA1) in peripheral blood from Chinese patients with non-small-cell lung cancer (NSCLC) treated with gemcitabine plus platinum.     

A multiple-dose pharmacokinetics of polyethylene glycol recombinant human interleukin-6 (PEG-rhIL-6) in rats

Radiation therapy has been widely applied in cancer treatment. However, it often causes thrombocytopenia (deficiency of white blood cells) as an adverse effect. Recombinant human interleukin-6 (rhIL-6) has been found to be a very effective way against this thrombocytopenia, but IL-6 has low stability in blood, which reduces its efficacy. To increases the stability and half-life of rhIL-6, it was modified by polyethylene glycol (PEG). The pharmacokinetics and the tissue distribution of PEG-rhIL-6 labeled with ¹²⁵I were examined after subcutaneous injection in rats. The pharmacokinetic pattern of PEG-rhIL-6 was defined with linear-kinetics, and we fitted a one-compartment model with half-lives of 10.44–11.37 h (absorption, t _{1/2K a}) and 19.77–21.53 h (elimination, t _1/2Ke), and peak concentrations at 20.51–21.96 h (t _peak) in rats. Half-lives and t _peak of PEG-rhIL-6 were longer than those of rhIL-6 previously reported. In the present study, for deposition of PEG-rhIL-6 in rats, the tissue distribution examination showed that blood was the major organ involved, rather than liver. However, as to the elimination of PEG-rhIL-6, the major organ was the kidney. The excretion fraction of the injection dose recovered from urine was 23.32% at 192 h after subcutaneous administration. Less than 6% of PEG-rhIL-6 was eliminated via the feces at 192 h. These results indicate that PEG-rhIL-6 is a good candidate drug formulation for patients with cancer.     

论滁州在明朝社会中的重要地位

滁州地处安徽东部,历来是兵家必争之地。明朝开国皇帝朱元璋起兵于濠州,并在滁州初步建立了自己的军事力量,从而借此一步步壮大了自己的实力并最终建立了明朝。在此过程中,滁州作为他的第一个军事基地和物资储备基地,在明朝建立中起到了十分重要的作用。明朝建立后,滁州也由于朱元璋的影响一步步地发展起来,成为当时安徽地区比较有影响的一个地方。滁州当时的发展依托着明初期统治者的政策,统治者也比较重视滁州及周边地区的发展。     

Chaiqin Chengqi Decoction decreases IL-6 levels in patients with acute pancreatitis

Objective  

In this paper, we investigated the effect of the traditional Chinese medicine Chaiqin Chengqi Decoction (CQCQD) on serum cytokines in acute pancreatitis (AP) patients.     

对克隆人技术的价值评判——基于儒家家庭伦理的视角

儒家的传统观念认为,人之为人的根本是德性,而德性的萌发和教化始自家庭,家庭是人伦关系的基石。从这一视角来看,由于缺乏健全的家庭人伦关系,由无性生殖的克隆人往往无法形成确定的自我角色认同,这势必会影响其道德情感和道德观念的培育,最终影响其健全人格的形成。因此,克隆人技术对儒家传统伦理秩序的深层影响不容忽视。