基于花香浓度的人工蜂群算法在机器人路径规划中的应用

传统的人工蜂群算法是在一种较理想的环境中进行的,不会考虑风的阻力、长时间飞行找不到蜜源使体力下降等现实因素。本文提出了基于花香浓度的人工蜂群算法——FABC算法,在传统的人工蜂群算法中加入了步长和视野范围两个因素提升求解精度,并在侦查蜂阶段提出了花香浓度机制避免陷入局部最优,提高收敛速度。为了验证FABC算法的有效性,采用4个经典测试函数对FABC算法进行了仿真实验,并将实验结果与传统人工蜂群算法以及其他改进人工蜂群算法进行对比。最后将FABC算法应用到机器人路径规划仿真实验中,实验结果证明FABC算法能够有效地解决机器人路径规划问题。     

基于离散布谷鸟搜索算法的带阻塞有差速混合流水车间调度

基于以最小完工时间为目标的带阻塞有差速混合流水车间调度问题,提出了一种改进的离散布谷鸟搜索算法。在基本布谷鸟搜索算法的莱维飞行和巢寄生性的基础结构上,提出了一种基于交叉策略的莱维飞行机制,以便算法能够解决离散问题;同时,通过非余弦递减策略的动态发现概率去发现劣质鸟巢,并利用排列差分进化算法的变异思想将劣质鸟巢重建;在搜索过程中设定全局最优极值保持代数为阈值去重新发现劣质鸟巢,以防止算法陷入局部最优;最后利用邻域搜索方法进一步提高算法的搜索精度。通过仿真实验验证了该算法在求解混合流水车间调度类离散问题上的有效性与优越性。     

固定床反应器流向振荡操作的模拟算法——改进变步长差分法

提出了改进的变步长差分法,用于求解固定床反应器作周期性流向切换操作时的温度分布和浓度分布。该方法能根据分布曲线的形状合理分布网格点,并在曲线迁移时自动调整格点分布,从而使格点数显著减少,计算时间大幅度下降。本方法用抛物线分段近似偏微分方程,使之成为三对角矩阵,简化了计算,便于求解。用SO_2氧化反应实验对算法作了验证。     

基于改进狼群算法的甲醇合成塔转化率机理建模及参数估计

以某甲醇合成塔为研究对象,通过深入分析甲醇合成过程的反应机理,建立了甲醇转化率软测量机理模型。为了提高模型参数的估计精度,提出了一种改进的狼群算法,引入了历史次优的概念与禁忌搜索机制。仿真实验结果表明,改进算法的全局搜索能力明显优于基本算法。以某甲醇合成过程的实际运行数据为样本,运用改进的狼群算法对甲醇转化率机理模型进行参数估计,与基本狼群算法相比,获得的参数精度更高,能更准确地预测合成塔出口处的甲醇转化率。     

一种基于改进型遗传算法的模糊聚类

针对模糊C均值算法(FCM算法)难以达到全局最优解的问题,引入了具有全局搜索能力的遗传算法以解决聚类问题,并在标准遗传算法基础上进行了改进。将该算法运用于IR IS数据的聚类,实现了较好的聚类,从而验证了算法的有效性。     

一种快速自适应蜂群算法及其应用

提出了一种改进的人工蜂群算法(Quick Self Adaptive Artificial Bee Colony, QAABC)。首先,对人工蜂群算法的选择策略和搜索策略进行改进,以提高算法的收敛速度和优化精度;其次,对超边界的个体进行一次有效变异,增强种群的多样性。最后,将本文算法与其他两种算法（标准ABC、ABCP）对5个测试函数在低维和高维进行了对比实验,并将之运用于压力容器设计中成本最小化问题的研究,所得结果均验证了改进算法的有效性。     

改进Demons算法的验证及其在4D-CT轮廓线推衍中的应用

目的 研究一种改进的Demons变形配准算法,验证算法的有效性,评价配准算法的精度,并将其应用于4D-CT轮廓线的推衍.方法 为加快收敛的速度和提高配准精度,将Demons算法的双向作用力进行重分配,并提出一个能量函数作为相似性测度,利用BFGS优化算法对能量函数进行优化,避免了经典算法中需指定迭代次数的缺陷.分别利用模拟形变CT图像与变形模体,分析和测量了配准算法的精度,并对该算法在4D-CT轮廓线推衍中的应用进行了评价.结果 改进后的Demons算法与经典的Demons算法以及类似的变形配准算法相比,有较高的配准精度,推衍生成的轮廓线与人工勾画的轮廓线匹配程度高.结论 变形配准是4D-CT中的一项关键技术,改进后的Demons算法应用于轮廓线的推衍有望大大治疗计划设计的轮廓勾画工作量,其配准精度能满足实际临床的需要.     

经颈动脉途径肝动脉插管及脾内注射肝细胞移植治疗急性肝衰大鼠的疗效比较

变异量子粒子群算法（MQPSO）通过在量子粒子群算法(QPSO)中引入变异机制,增加了全局搜索能力,避免陷入局部最优。在粗糙集理论和MQPSO算法基础上,提出了基于MQPSO优化的决策表属性约简方法,并在算法实现中提出了迭代记录策略,改进了算法中的耗时计算部分,降低了算法的时间复杂度。     

改进的混沌蜂群算法在流水线调度中的应用

针对批量流水线调度问题,提出了一种改进的人工蜂群算法优化最大完成时间。该算法用NEH方法产生初始解,利用混沌的遍历性生成新的邻域解。为了跳出局部最优,使用最优解插入扰动替换一些连续若干步不能改进的解以提高算法的全局搜索能力,仿真实验结果验证了算法的可行性。     

简约空间内点法的投影梯度可行性恢复

内点法作为一种高效的非线性规划算法,其简约空间算法实现尤其适于求解过程系统工程中的高维、低自由度优化问题,从而算法只需要在决策变量的低维空间寻求最优解,并且求解性能不依赖于模型的精确二阶导数信息,这对难以获得二阶导数或者二阶导数计算代价很大的复杂系统优化极为重要。为了保障简约空间内点法的全局收敛性,本文提出了与内点法共享空间分解结构的投影梯度可行性恢复算法。该算法结合了信赖域与线性搜索方法的优点,能够有效促进内点法的全局收敛。通过求解经典文献及CUTE/COPS算例库中的优化问题验证了本文提出算法的有效性。     

APPLICATION OF LORNOXICAM TO PATIENT-CONTROLLED ANALGESIA IN PATIENTS UNDERGOING ABDOMINAL SURGERIES

FOR anesthesiologis s ,treatingpostoperativepainhas alwaysbeen a problem.Althoughopioidshave been provedtobe effective,theirsideeffectscouldnotbeignored.With thedevelopmentofscienceand pharmacology,many drugs with aspectsof satisfactoryanalgesicefficacyand couldbe welltoleratedby patientshave been developed.And lornoxicamisone of them, which isa non-steroidalanti-inflammatorydrug (NSAID ), with analgesic, anti-infl-ammatory,andantipyreticproperties.Itseliminationhalf-time(3 to 5 hours) isle…     

Value of D-Dimers in patients with acute aortic dissection

Objective: To evaluatel the value of D-dimers in patients with acute aortic dissection (AAD). Methods: This study consisted of 16 patients with AAD and 27 non-AAD patients. Serum D-dimets were measured by Sta-Liatest D-DI immunoturbidimetric assay. Results: D-dimer level was higher (P ＜ 0.001) in patients with AAD(7.91 ± 5.52 μg/ml) than that in non- AAD group(1.57±1.24 μg/ml). D-dimer was positive (＞0.4 μg/ml) in all patients with AAD and in 10 control group patients (37%). Among patients with acute AAD, D-dimers tended to be higher in Stanford A than in Stanford B (8.67 ± 4.31 μg/ml vs. 3.24±1.27 μg/ml, P ＜0.01). D-dimer values tended to be higher in more extended disease(3.84 ± 1.65 μg/ml, 8.57 ± 3.58 μg/ml and 11.87 ± 5.69 μg/ml in thoracic aorta, thoracic and abdominal aorta, thoracic and abdominal aorta and iliacal arteries, respectively, P ＜ 0.05 for both 8.57 ± 3.58 and 11.87 ± 5.69 vs. 3.84 ± 1.65 ). Including the control group into the analysis, we found a sensitivity of 100%, a negative predictive value of 100%, and a specificity of 66% and a positive predictive value of 64% for D-dimer in diagnosis of AAD in our patients with suspected AAD. Conclusion: D-dimer was elevated in patients with AAD. A negative D-dimer test result could be useful in excluding AAD.     

Research of combined liver-kidney transplantation model in rats

Objective： To set up a simple and reliable rat model of combined liver-kidney transplantation. Methods： SD rats served as both donors and recipients. 4℃ sodium lactate Ringer＇s was infused from portal veins to donated livers,and from abdominal aorta to donated kidneys, respectively. Anastomosis of the portal vein and the inferior vena cava （IVC） inferior to the right kidney between the graft and the recipient was performed by a double cuff method, then the superior hepatic vena cava with suture. A patch of donated renal artery was anastomosed to the recipient abdominal aorta. The urethra and bile duct were reconstructed with a simple inside bracket. Results： Among 65 cases of combined liver-kidney transplantation, the success rate in the late 40 cases was 77.5%. The function of the grafted liver and kidney remained normal. Conclusion： This rat model of combined liver-kidney transplantation can be established in common laboratory conditions with high success rate and meet the needs of renal transplantation experiment.     

Development on Adjustable Calibration Marker for Shock Wave Focus

Shock wave lithotripsy （SWL） is a treatment of choice for upper urinary stones. However, this procedure is inappropriate for obese patients because the focus is often unable to reach the target owing to the limited focal distance in shock wave source. Although treating such patients in a blast path may increase the application length of shock wave source, it＇s difficult to find this path on the lithotripter monitor. For this reason, we invented an adjustable calibration marker in order to set an effective focus in the shock wave hath.     

Study on the TCM Pathogenesis of Angiopathic Complications of Type II Diabetes

Excess production of reactive oxygen species(ROS)of mitochondrion mediated by hyperglycemia is the common pathogenesis of angiopathic complications of diabetes.TCM holds that the damp from the dysfunction of spleen.kidney and liver is the causative factor of complications of diabetes.This is similar to the mechanism of Ros resulting in angiopathic complications of diabetes.When the angiopathic complications of type II diabetes mellitus(T2DM)are difierentiated as caused by turbid damp in TCM can be explained as ROS.Since the obstruction of pathogenic damp in channels and collaterals is said to be the main pathogenesis,the treating principle should be dissolving the damp to remove the obstruction.     

Leptin, Ghrelin and TNF-α before and after Hypo-caloric Traditional Chinese Diet and Auricular Acupuncture

INTRODUCTION Obesity is a complex emergent problem, which can be possibly solved not only by the diet but also by the life style and promotion of a constant physical exercise. 1, 2 No doubt careful attentions must be given to the nutritional condition of obese people, the dietary habits, the somatic build (i.e. distribution of fat mass) and the organic functions linked to formation of the fat mass. All the parameters should be constantly monitored before, during and after a diet treatment. 3, 4, 5     

BLOOD PRESSURE CHANGE WITH AGE IN SALT-SENSITIVE TEENAGERS

Objective To observe blood pressure change with age in salt-sensitive teenagers whose salt sensitivity were determined by repeated testing.Methods Salt sensitivity was determined through intravenous infusion of normal saline combined with volume-depletion by oral diuretic furosemide in 55 teenagers. After five years, salt sensitivity was re-examined and subject blood pressure was followed up. Blood pressure changes in salt-sensitive teenagers were compared to that of non-salt sensitive teenagers over five years.Results After 5 years, the repetition rate of salt sensitivity determined by intravenous saline loading is 92.7%. In teenagers with salt sensitivity on the baseline, both the systolic blood pressure increments and increment rates were much higher than non-salt sensitive teenagers (12.7±12.1 mmHg vs. 2.8±5.2 mmHg, P＜ 0.01; 12.2%± 12.0% vs. 2.5% ±4.4%, P＜ 0.001,respectively). There was a similar trend for diastolic blood pressure (8.4 ± 6.4 mmHg vs. 3.7 ± 6.4 mmHg, P = 0.052; 13.2% ±10.6 % vs. 6.8%± 10.1%, P = 0.053, respectively).Conclusions Salt sensitivity determined by intravenous saline loading showed good reproducibility. Blood pressure increments with age were much higher in salt-sensitive teenagers than non-salt sensitive teenagers, especially in terms of systolic blood pressure.     

Relationship between Dysglycemia and Carotid Atherosclerosis in Tibetan Population

People with dysglycemia are at high risk for atherosclerotic diseases. This study aims at investigating the atherosclerotic vascular damage in dysglycemia and its metabolic origin in Tibetan population.     

Acupuncture Combined with Spinal Tui Na for Treatment of Primary Dysmenorrhea in 30 Cases

Objective: To observe the therapeutic effects in acupunture treatment of primary dysmenorrhea combined with spinal Tui Na, and study its mechanism. Methods: Thirty cases of the treatment group were treated by acupuncture combined with spinal Tui Na, and thirty cases in the control group were treated by routine acupuncture. Results: The total effective rate was 93.3% in the treatment group, and 73.3% in the control group, with a significant difference between the two groups (P<0.05). Conclusions: Acupuncture combined with spinal Tui Na has good prospects for treatment of primary dysmenorrhea.     

Luo Lingjie's Experience in Treating Chronic Nephropathy

In treating chronic nephropathy,Luo Lingjie,a chief physician,pays attention to regulating the balance between yin and yang,treating infection if present,and removing pathogenic factors.He prescribes gentle drugs and uses carefully strongly warming-tonifying ones,emphasizes the importance of persuading the patient to persist in treatment with medication and nurse one's health for recuperation,and is good at combined use of TCM and western medicine therapy and brings the merits of various therapies into full play,with obvious theraoeutic effects.