陶二煤矿突出煤层石门反向揭煤技术研究

在突出矿井突出煤层石门揭煤过程中,由于穿越石门和煤门的距离长,工程周期长,揭煤时诱发突出危险的可能性大,而且在放炮揭煤时很难一次揭穿煤层,极易发生延期突出,一直以来是煤矿防突技术难题,给生命和财产带来巨大损失。陶二煤矿利用石门反向揭煤技术安全快速揭开高突煤层,具有抽放时间短、节省岩石钻孔工程量等技术优点,为煤与瓦斯突出矿井石门揭煤探索出一条安全、快速的技术途径。     

大断面煤层沿空巷内支护加固技术研究

地下岩体在开采之前,由于自重和构造所引起的应力是处于平衡状态的,当掘巷道或者进行回采工作时,就破坏了原来应力的平衡状态,使岩体内部应力重新分布,具体表现在巷体周围的煤、岩体产生移动、变形,直到煤和岩体内部形成新的应力平衡状态为止。在煤的开掘过程中,由于采掘活动引起巷道围岩应力集中和重新分配,为了防止围岩变形遭到破坏,需要对围岩进行支护和加固。本文就大断面煤层沿空巷内支护加固技术进行研究,以便为煤矿在开采过程中积累一些技术和经验。     

Impact of Stressful Situations on Salespersons' Gestures

Interest: This research analyses the influence of situations on salespersons’ gestures and behaviors. This research contributes to this underresearched field by exploring the impact of stressful versus nonstressful situations on salespersons’ personal behavior.

Methods: This research is based on 1,205 gestures observed during 382 sales calls that averaged 11 minutes with 382 salespersons. Half were in stressful situations, and half were in nonstressful situations. This study focuses on pharmaceutical products (drugs) in the medical field, with 95 doctors, 6 judges, 304 average performing salespersons, 39 high performers, and 39 low performers. This study shows how salespersons’ behaviors vary depending on stressful and nonstressful situations. This research also articulates a new field of sales research that is understudied by researchers and suggests new training trends in sales management.

Objective: The objective is to answer questions such as “Does stress influence salespersons’ behavior, and what are the gestures most affected by such situations?” To examine the effects of training on gestures, an experiment with 97 salespersons was conducted during a sales training session. This experiment measured whether salespersons trained on gestures behaved differently than those who were untrained.

Results: In general, stressful or nonstressful situations caused real differences in gestural behavior. In particular, the best salespersons performed the largest number of gestures during stressful situations. For example, stressful situations increased the mechanical or emotional gestures in leg movements or the number of glances.     

我国煤炭波动周期分析与近中期发展趋势推演

通过对我国改革开放以来GDP增速、煤炭消费增速历史数据的分析,发现不管是经济发展,还是煤炭发展过程中都存在周期性的波动变化规律。而通过对煤炭与经济波动曲线的拟合,发现煤炭与经济发展呈协同波动变化。基于以上煤炭与经济协同波动规律,对未来煤炭与经济发展走势进行了推演,发现煤炭消费增速最早要在2015年前后才能企稳提高,由此进入新一轮上升期。综合分析表明,煤炭抗波动能力较弱,未来要实现煤炭平稳发展,需根据经济发展节奏的不断变化,及时主动地调整煤炭发展步伐,从而避免因煤炭发展的冒进或硬着陆给煤炭及关联产业发展带来长时间、高强度的冲击和损害。     

新型煤炭企业物资供应人才内涵与选用标准

介绍了新型煤炭企业物资供应人才的内涵,构建了安全效益、经济效益和管理效益3个维度;分析了选用新型煤炭企业物资供应人才的3大标准,提出了从道德品质、素质能力、态度观念等方面着手的观点,对实践具有重要指导和参照意义。     

Successful eco‐innovators: Exploring the association between open inbound knowledge strategies and the performance of eco‐innovative firms

The main purpose of this paper is to analyse the association between open inbound knowledge strategies and the performance of eco‐innovative firms in the food and beverage industry. We propose a mixed framework based on the eco‐innovation literature and the open innovation approach. We consider the characteristics in a traditional sector based upon a resource‐based perspective. Three types of firms are distinguished in terms of their sales growth in the Spanish food industry from the least to the most successful eco‐innovators. Using multinomial logistic regression models, it is shown that the diversity of collaborators (breadth of external sources of knowledge) and joint adoption of product and process eco‐innovations are positively associated with the probability of achieving high sales growth. Moreover, we find an inverted U‐shaped relationship between the breadth of the external search and firm performance, but only for the group of the most successful firms. Moreover, operational flexibility, knowledge‐based capabilities and company size are also positively related to the group of successful eco‐innovators.     

Evaluating quantile forecasts in the M5 uncertainty competition

Probabilistic forecasts are necessary for robust decisions in the face of uncertainty. The M5 Uncertainty competition required participating teams to forecast nine quantiles for unit sales of various products at various aggregation levels and for different time horizons. This paper evaluates the forecasting performance of the quantile forecasts at different aggregation levels and at different quantile levels. We contrast this with some theoretical predictions, and discuss potential implications and promising future research directions for the practice of probabilistic forecasting.     

Behaviour‐Based and Outcome‐Based Control Systems: A Meta‐Analytic Study

Sales control systems are instruments used by firms to improve performance and other organizational outcomes. To understand their antecedents and consequences, this paper conducts a meta‐analysis based on 104 studies. The results showed significant relationships between behaviour‐ and outcome‐based control systems and the complexity of the products, bonuses, financial performance, sales innovation, organizational support and satisfaction with supervisors. The outcomes revealed that behaviour‐based control systems were the most effective mechanism in turbulent markets and for determining financial performance. However, outcome‐based control systems were the most efficient instrument for complex products.     

关于我国瓦斯治理现状及存在问题的分析

随着我国煤矿开采深度的不断加大,煤层的透气性逐渐降低,而瓦斯的压力、浓度、放散量和速度则不断升高,因此加大瓦斯治理力度尤为关键。本文我们将针对当前我国煤矿瓦斯治理的现状,针对当前工作中存在的问题,提出煤矿瓦斯治理工作方面的意见和措施,以期能够提高煤矿的安全性,减少煤矿瓦斯事故的发生。     

煤的工业分析过程及意义研究

本文从实际出发,阐述了煤工业分析的定义以及表达式,说明了煤的工业分析的重要性以及主要意义,在整个分析过程中,灰分属于无机组成成分,而固定碳以及挥发分则属于煤中的有机组成部分。对于煤的工业分析而言,在整个过程中虽然显得较为简单,可分析结果会严重影响到煤炭的性质以及煤的使用,因此,对煤进行工业分析具有至关重要的作用。