Positional patients are defined as obstructive sleep apnea(OSA) patients in whom respiratory disturbance index(RDI) or apnea-hypopnea index(AHI) is at least twice as high in the supine position than in the non-supine position.Positional therapy (the avoidance of the supine posture during sleep is a simple behavioral therapy for mild and moderate sleep disordered breathing.

2013年底至2014年，经济基本面对煤炭需求的拉动力度弱势趋稳，但煤炭需求总体偏弱的格局难以改观；煤炭增产动能较强，煤炭运能可调空间加大，煤炭进口高位波动，受煤价较低、安全防治、库存制约以及环保压力等因素影响，煤炭有效供给的将在相对低位波动。预计2014 年煤炭供求将呈总体宽松、阶段性过剩态势，如果气候因素所带动煤炭需求明显好于正常水平，则供求关系会阶段性地朝供求平衡方向回调。

10 月份，生产资料行业运行继续保持回暖态势。企业预期良好，效益改善。上游产品价格有所回落，生产增速继续保持稳中有升。市场需求继续趋好，业务活动较为活跃，商品周转效率有所提升，业务规模呈现趋稳回升发展态势。进入三季度以来，“稳增长、调结构”政策效果显现，经济活动链条上的采购、生产等各环节均出现明显积极变化，经济运行已进入平稳增长区间。

EOR is a technique to increase the production of oil fields other than those that are conventionally used for the oil extraction process. EOR is the third phase that is used for oil recovery after the failure of primary and secondary oil recovery methods. Primary oil recovery is the first stage in the production of hydrocarbons by using natural energy available in the reservoirs such as gas drive, water drive, and gravity drainage. When the natural energy from the reservoirs is depleted, then oil is recovered by secondary recovery methods using an external source such as injection of either natural gas or water. The primary and secondary methods can recover up to 30-40 percent of the hydrocarbons available in the reservoirs.

Solar energy has become a major alternative for supplying a substantial fraction of the nation's future energy needs. The U.S. Department of Energy (DOE) supports activities ranging from the demonstration of existing technology to research on future possibilities. At Lawrence Berkeley Laboratory (LBL), projects are in progress that span a wide range of activities, with the emphasis on research to extend the scientific basis for solar energy applications, and on preliminary development of new approaches to solar energy conversion.

石油安全最早是一个军事领域的概念，主要是指以石油为战争机器的燃料供应安全问题[1]。20世纪70年代，世界第一次石油危机使得石油安全作为一个与石油危机相对应的概念而被广泛使用。从经济安全范畴看，石油安全的基本定义是“一种以不中断经济进程的方式和价格水平满足需求的流动[2]”。其核心内容是石油的安全供给和油价的合理波动。从供应安全的角度看，石油安全是指“一个国家或地区所能获得的石油资源持久、稳定、足量地满足国民经济可持续发展需要的状态”[3]。也就是说石油的数量、质量以及地区均衡性都会影响到一个国家或地区的石油安全。