以下为句子列表：
英文: A branch and bound algorithm for solving a class of nonlinear 0-1 knapsack problems is proposed, in which branching is common 0-1 variables one and a better feasible solution is found by a simply integer heuristic method as well as a lower bound of the op
中文: 摘要构造出了一类可分离非线性0-1背包问题的分枝定界算法，分枝的过程是普通的0-1变量分枝，用简单的取整启发式法确定更好的可行解；而在每个分枝结点处用线性松弛技术确定了它的子问题的一个线性规划松弛逼近，由此得到最优值的一个下界。
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英文: A heuristic scheduling approach based on the characteristics of concurrent activities in product developing process is presented.
中文: 摘要针对并行工程产品开发过程中的活动规划问题，提出了一种启发式的规划方法。
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英文: A new heuristic dynamic optimal algorithm is presented in this paper to solve the single airport ground-holding problem.
中文: 摘要对单机场地面等待问题提出了一种新的启发式动态优化算法。
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英文: A new qualitative analysis method is provided for task granularity design according to the formulized calculation and heuristic rules comparison.
中文: 通过对内聚系数的公式化计算和启发式规则比较，为任务粒度的设计提供了一种新的定性分析方法。
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英文: Abstract: A heuristic scheduling approach based on the characteristics of concurrent activities in product developing process is presented.
中文: 文摘:针对并行工程产品开发过程中的活动规划问题，提出了一种启发式的规划方法。
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