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The results of a national survey regarding the preparation of secondary school counselors is presented. Included is information on core curriculum, elective courses, and practicum requirements. 相似文献
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针对电网连锁跳闸引起的停电事故以及降低电力系统的有功功率损耗,提出了一种计及网损的电网连锁故障预防方法。 该方法提出了网损指标和衡量电网安全稳定运行指标,综合构建了多目标优化模型。 该模型的优化目的在于确保均衡权重下安全裕度尽可能大,同时使网损尽可能小。 通过粒子群优化算法求解,在IEEE-39 节点系统上进行了算例分析。 仿真结果表明该优化模型不仅提高了电网安全运行的界限,也实现了降损节能。 相似文献
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The UN Millennium Project Task Force on Education and Gender Equality, an expert advisory group commissioned by the UN Secretary‐General, was asked to examine how dramatic improvements in education can be achieved in the developing world. The task force investigated the problems of low enrolment, early drop‐out and poor learning outcomes that so profoundly affect many children in the developing world. The experiences of both countries that have achieved important successes in rapidly scaling‐up access to primary education, and countries that have made only slow progress, shed light on the priorities for the leadership in both developing countries and donor agencies. The task force developed specific recommendations about overcoming demand‐ and supply‐side constraints to greater primary school completion; and about how international donors and technical agencies can stimulate and support country‐led progress, with financial resources that are linked to performance. 相似文献
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