关键词： 球团   湿法   脱硫  

摘要： 新钢球团厂烟气脱硫系统采用石灰石湿法脱硫工艺,用石灰石浆液吸收球团厂烟气中的二氧化硫,最终生产硫酸钙石膏;球团烟气脱硫后的烟气由烟囱直接排放.整套工艺系统包括石灰石浆液制备系统、烟气系统、SO2氧化吸收系统、滤液系统、工艺水系统、石膏脱水系统、排放系统、废水处理系统.随着国家环保形势的日益严峻,环保设施已经是企业生存的一条生命线,如何在脱硫系统除开达标的前提下降低脱硫费用,对球团厂的效益有着至关重要的作用.

关键词： 二胡   高效演奏意识   音色控制   王乙聿   《蓝色星球——地球》  

摘要： 现如今的二胡演奏艺术,在历经了一代又一代的优秀二胡演奏家、作曲家和教育家们毕生的无私奉献与淬炼后,无论在演奏技法上还是在曲目类型等方面都得到了极大的提高和发展。与此同时,这在音乐综合素质能力的提升方向上,对现在的专业二胡学习者和演奏者们又提出了更高的要求。从一定意义上说,在专业学习二胡演奏的过程中,演奏者们面对着“传统与现代”的双重课题——即,不仅要面对含有大量高难度技术片段的现代编创作品,还要学习怎样处理和传承带有“润腔行韵式”风格技法的传统风格性作品。那么,作为当今的二胡专业学习者和演奏者们,如何能在演奏中做到游刃有余,头脑清晰;在音乐表达上准确、流畅、乐声能够依心而发呢?在本篇论文中,笔者将基于自身从音乐学院附小至研究生的二胡专业学习过程与实践演奏经验出发,对二胡演奏在基本功训练方面的高效演奏意识做出一些规律性地梳理。并以二胡音色控制为切入点,学位音乐会曲目《蓝色星球——地球》为例,试图总结其中具有代表性的思维方法与练习模式,关注演奏者“先动脑,再动手”的演奏思维意识,提高其在乐曲处理上的把握性与准确性。

关键词： 意识形态   物化   物质化  

摘要： 西方马克思主义意识形态批判存在两种基本范式:一是卢卡奇的物化意识形态理论;二是阿尔都塞对意识形态物质化的阐释。从意识形态的表现形式来看,卢卡奇着力分析的是人们面对物化结构时的直观态度,这既包括理论化的意识形态(资产阶级哲学社会科学),也包括日常观念的意识形态。阿尔都塞侧重分析的是各种物质性的意识形态。尽管存在形式差异,但从意识形态的运行机制来看,二者都指出了资本主义权力控制和人们规范认同之间的内在耦合。意识形态并不仅仅是某种思想理论,也并不仅仅是统治阶级编织的美丽谎言,意识形态还是人们的生活实践态度。这种实践态度参与建构了社会现实。任何社会现实的改变都离不开意识形态的改变,都离不开生活态度的改变。

关键词： Visual search   Gaze behavior   Freezing of gait   Parkinson's disease   Conscious movement processing   Anxiety  

摘要： Introduction: Changes in visual attention have been argued to influence freezing of gait (FOG) in people with Parkinson's Disease (PD). However, the specific visual search patterns of people with FOG pathology (PD + FOG) and potential underlying mechanisms are not well understood. The current study explored visual search behavior in PD + FOG while walking on a pathway featuring environmental features known to exacerbate FOG (e.g., narrow doorway and tripping hazards). Potential underpinning attentional mechanisms were also assessed, such as conscious movement processing. Methods: Visual search behavior of twelve people with PD + FOG tested in ON-state (M-age = 74.3) and twelve age-matched healthy controls (M-age = 72.5) were analyzed during a complex walking task. The task required participants to step over an obstacle and navigate through a narrow doorway, surrounded by clutter. Results: People with PD + FOG more frequently directed visual attention to ongoing and imminent steps compared to healthy controls (M-dn = 26% vs M-dn = 14%, respectively;p = 0.042). Self-reported conscious movement processing was also significantly higher in people with PD + FOG. The one participant who froze during the walking task fixated the future trip hazard (obstacle, approximately 6 steps ahead) almost exclusively during freezing trials (i.e., 60-100% of the trial). In contrast, during 'non-freeze' trials, this participant increased the duration of fixations towards ongoing and imminent steps. Conclusion: Results suggest that people with PD + FOG strongly monitor/control ongoing and immediately upcoming stepping movements. However, prolonged fixations towards threats to future movements might prevent people with PD + FOG from processing the visual information needed to do this, thereby provoke freezing episodes.

摘要： Endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) has become a standard procedure in the diagnosis and staging of lung cancer [1]. Sedation method is one of the crucial steps in EBUS-TBNA procedures. A successful sedation provides a comfortable environment for the patient, while enabling the bronchoscopist to obtain adequate tissue. The choice of sedation should be made according to several factors. Deep sedation may be preferred in cases that require additional procedures, such as endobronchial stent, besides EBUS/TBNA, or in centres where trainees are still acquiring skills for such a procedure [2]. Moreover, deep sedation might be suitable foro EBUS/ TBNA procedures where comprehensive staging or small pulmonary node sampling is carried out, particularly by novice bronchoscopists [3].

关键词： 自然睡眠   麻醉状态   大脑皮质   皮质层   神经环路   神经元   电生理学研究   丘脑  

摘要： 功能性磁共振成像(MRI)和电生理学研究表明,意识的形成依赖于大规模的丘脑-皮质和皮质-皮质间的相互作用。然而,尚不清楚不同皮质层和神经环路中的神经元如何起作用。该研究同时记录了猕猴的中央外侧丘脑(CL)和额顶叶皮质各层分别在清醒、睡眠和麻醉状态下的电活动,发现无论是自然睡眠还是不同麻醉剂诱导的无意识状态下,位于丘脑和深部皮质层的神经元对意识水平的变化最敏感。

关键词： 马尔库塞   人工智能技术   意识   单向度  

摘要： 现今人工智能技术在给人类带来丰富物质生活的同时,也偏离了原有的道德准则,迫使人们背离了作为自然人的"双向度"生活,这一影响给后现代人类带来了危机。文章通过马尔库塞的技术理论,解构人工智能技术在思想、生产和生活三个方面对人的意识的压抑性控制,激发人们思考摆脱"单向度"生活,寻求后现代人类自由与解放的未来新出路。

关键词： Non-conscious error   Control of dynamic events   Human reliability   Heartbeat   Cognitive blindness   Human attention  

摘要： This paper studies the synchronization between dynamic events with heartbeats and its impact on non-conscious errors in the control of dynamic events. It proposes a methodology to compare two groups of subjects: a group for which alarms are synchronized with the heartbeats of the subjects and a group for which they are not. Quantitative and subjective data were recorded during four experimental phases from a low level to a high level of workload. Results showed that there was a significant impact of such a synchronization of events with heartbeat: people produced more errors when this synchronization was present and they were not really conscious about the disruption of their abilities. This study is very promising and shows the interest of developing future on-line or off-line human reliability assessment methods based on unsafe behaviors associated with this synchronization.