论地方院校研究生联合培养基地的构建     

刘云  李阿利 《娄底师专学报》2011,(1):101-104

在新形势下积极探索研究生联合培养基地培养模式,对我国高层次创新型人才的培养有十分重要的作用。建立研究生联合培养基地,要充分结合自身的实际情况和特点,因地制宜,从实际出发,根据各类学校不同学科、特点,提出不同的要求和作法,并根据实际情况的改变而随时调整。  相似文献   

虚假宣传保荐人归责问题辨析——由“三鹿奶粉案”引发的思考     

金健 《广东广播电视大学学报》2011,20(6):51-58

《广告法》调整的主体是“广告主、广告经营者、广告发布者”,不包括个人。而在《食品安全法》的规制下,个人被列入虚假广告的责任主体范围。广告保荐人被课以严格责任和连带责任,成为民愤之宣泄口。保荐人的地位和经营者大不相同,在广告中也不具备独立的法律人格,其权利、义务统一于合同行为之中。广告保荐人和消费者的关系并不是对立关系。法律就不应当课以比经营者更重的严格责任,也没有理由让其承担所谓的连带责任。  相似文献   

全渠道零售场景下配送车辆路径问题     

施天娇  杨斌  朱小林 《上海海事大学学报》2020,41(2):51-57

为研究全渠道零售的配送系统对企业物流成本的影响,综合考虑时间窗、车型选择等因素,以运输成本最低为目标,建立高度协同的全渠道零售场景下的物流配送模型。该模型采用自适应遗传算法求解,利用MATLAB进行算例分析。结果显示:全渠道零售模式下的车辆调度方案能迅速响应消费者需求,与一般配送模式相比可以减少物流成本,优化车辆配置。与粒子群优化算法相比,自适应遗传算法的运行时间更短、优化结果更好,这验证了模型和算法的可行性和有效性。  相似文献   

共同侵权连带责任的两个问题     

邱文华 《荆门职业技术学院学报》2006,21(1):58-60

共同侵权行为的构成要件及无民事行为能力人、限制民事行为能力人共同致人损害的责任承担,是处理共同侵权连带责任案件的两个重要问题。由于民事责任重在补偿受害人损失,为有效保护受害人利益,对共同侵权的构成要件宜采“客观说”;由于无民事行为能力人、限制民事行为能力人共同致人损害是由监护人承担替代责任,为平衡监护人、被监护人、受害人三者利益关系,不宜让监护人一律承担连带责任。  相似文献   

二次方三项式线性齐次微分方程的解法     

孙长军 《荆门职业技术学院学报》2006,21(3):59-61

通过把线性齐次微分方程x2y(n) 2nxy(n-1) n(n-1)y(n-2)=0化为可逐次积分的线性微分方程,找出了它的通解形式,给出了严格的证明,并将其推广,得到x2y(n) (x2 2nx)y(n-1) [2(n-1)x n(n-1)]y(n-2) (n-1)(n-2)y(n-3)=0的通解.  相似文献   

Leg amputation side determines performance in curve sprinting: a case study on a Paralympic medalist     

Johannes Funken  Kai Heinrich  Steffen Willwacher  Ralf Müller  Jonas Böcker  Hiroaki Hobara 《Sports biomechanics / International Society of Biomechanics in Sports》2019,18(1):75-87

The lower limb kinetics of curve sprinting in amputees are not well described in the literature, particularly with respect to the effect of the side of amputation. This is an issue due to the importance of the knowledge for prosthetic design and classification of athletes. Thus, the aim of this study was to investigate the influence of side of amputation on curve sprinting performance in athletes with a unilateral leg amputation. A three-dimensional motion analysis system (Vicon), four force plates (Kistler) and a modified mathematical human model (ALASKA) were used to compare clockwise and counter clockwise curve sprinting lower limb kinematics and kinetics of a Paralympic medalist with a left-sided knee exarticular amputation. Results reveal that vertical ground reaction force application and total vertical impulse were lower when the affected limb was at the inside of the curve. The unaffected limb showed joint mechanics different to those established for non-amputee athletes and might contribute better to propulsion when being the inside limb. Curve sprinting biomechanics and the ability to attain high radial velocities are directly dependent on the side of amputation relative to the curve direction in a unilateral amputee athlete of highest performance level.  相似文献   

The influence of water depth on kinematic and spatiotemporal gait parameters during aquatic treadmill walking     

Taeyou Jung  Yumi Kim  Hyosok Lim  Konstantinos Vrongistinos 《Sports biomechanics / International Society of Biomechanics in Sports》2019,18(3):297-307

The purpose of this study was to investigate kinematic and spatiotemporal variables of aquatic treadmill walking at three different water depths. A total of 15 healthy individuals completed three two-minute walking trials at three different water depths. The aquatic treadmill walking was conducted at waist-depth, chest-depth and neck-depth, while a customised 3-D underwater motion analysis system captured their walking. Each participant’s self-selected walking speed at the waist level was used as a reference speed, which was applied to the remaining two test conditions. A repeated measures ANOVA showed statistically significant differences among the three walking conditions in stride length, cadence, peak hip extension, hip range of motion (ROM), peak ankle plantar flexion and ankle ROM (All p values < 0.05). The participants walked with increased stride length and decreased cadence during neck level as compared to waist and chest level. They also showed increased ankle ROM and decreased hip ROM as the water depth rose from waist and chest to the neck level. However, our study found no significant difference between waist and chest level water in all variables. Hydrodynamics, such as buoyancy and drag force, in response to changes in water depths, can affect gait patterns during aquatic treadmill walking.  相似文献   

基于ArcGIS的多温区冷藏车辆路径优化     

陈婧怡  邱荣祖 《上海海事大学学报》2019,40(1):8-13

为降低冷链物流成本,研究多温共配模式下生鲜农产品冷链配送问题。采用多温区冷藏车,构建考虑运输成本、货损成本、制冷成本的路径优化模型,利用遗传算法对算例进行求解,借助ArcGIS规划最短路径。算例结果显示,与传统配送模式相比,多温共配模式可减少2辆冷藏车的调度,总成本降低34. 1%,实际运输距离缩短54. 1%。多温共配模式可有效解决生鲜农产品配送小批量、多品种、高成本的问题。  相似文献   

钎焊间隙对镍基钎料接头强度的影响   总被引：4，自引：0，他引：4  

刘海侠 《河北软件职业技术学院学报》2007,9(1):69-72

本文系统研究了Ni82.5Cr7Si4.583Fe3成分的非晶态及晶态钎料在不同的钎焊规范下,真空钎焊1Cr18Ni9Ti不锈钢时,接头强度随钎焊间隙变化的特征及与钎缝组织的对应关系.结果表明,接头强度随钎焊间隙的变化存在平台值现象,平台对应的两个特征钎焊间隙分别称为最小可用钎焊间隙{Wmin)和最大可用钎焊间隙(Wmax);从保证填缝质量及成形来看.Wmin不应小于0.01mm;从避免钎缝中出现脆性化合物相及获得较高接头强度考虑.钎焊间隙选择不应大于Wmax;在两个特征钎焊间隙内.钎焊间隙变化对接头强度影响不大;钎焊温度或钎焊保温时间增加时.最大可用钎焊间隙也增大,而最小可用钎焊间隙基本保持不变.  相似文献   

对农村免费临床医学定向生学习激励的探讨简     

卜东东  彭晓英 《四川教育学院学报》2014,(1):32-35

近年来,一批高等医学院校陆续开展农村免费医学定向生的培养工作,但学生入学后在不同程度上出现了学习积极性和主动性下降、学习动力不足的问题.文章结合国家相关政策对农村免费医学定向生的特点进行分析,并在此基础上提出扎实开展入学教育工作、构建全科医学人才培养体系、设立专项奖学金、建立学校与定向单位联合培养机制和实行“先培养、后分配”的就业方式等增强和激励医学定向生学习动力的举措.  相似文献