论以“西洋自行船”来确定《红楼梦》庚辰本定稿于乾隆三十五年以后

《红楼梦》庚辰本第57回里有“金西洋自行船”,第63回里有“自行船”,说的都是宝玉房里有西洋自行船模型。当时的自行船就是以蒸汽机为动力的轮船。试制轮船成功的是美国发明家富尔顿,时在1807年(嘉庆十二年)。由于程乙本亦有“金西洋自行船”和“自行船”的叙述,而程乙本梓行的时间是1792年(乾隆五十七年),早于1807年,因此,宝玉房里的自行船模型,只能仿自于最先试制的轮船。该式轮船的发明家是法国的乔弗莱,时在1769年至1782年之间。因此庚辰本定稿于乾隆三十五年(1770)至四十七年之间的某年。     

采用楼宇自动化系统对绿色建筑的影响

楼宇自动化系统是绿色建筑的必备内容,其对绿色建筑的影响突出表现在节能、环保、提高舒适性,以及实现不同系统的有效联动等方面。     

基于LabVIEW的自动摆盘设备控制系统设计

为了解决吸头和比色杯摆盘（把物品装进相应的盒子中）效率低的问题,采用工业计算机和运动控制卡开发出 了一种新型自动摆盘设备控制系统。系统采用伺服电机和电磁阀作为控制部件,并基于LahVIEW设计出了一套从取 盒、定位、摆盘到卸盒的自动化流水线摆盘系统,从而解决了人工摆盘速度慢、精准度低的问题。实验结果表明,该系统 能够大大提高摆盘效率,具有速度快、精准度高、稳定性好等优点。     

高校计算机自动排课系统的研究与实现

本文介绍了高校计算机自动排课系统的设计与实现.应用图论中着色理论来设计自动排课算法,并利用可视化编程技术予以实现,有效地处理了排课过程中教师、教室和班级三者之间的冲突问题,使各项有限资源得到合理利用.     

信息处理用藏文自动分词研究

藏文自动分词研究是藏文信息处理领域的一项基础性工程,在研究藏语形式逻辑格、语义逻辑格、音势论等语法理论的基础上,借鉴汉语的分词理论和方法,充分利用藏语上下文语境,在不同藏语句子层面采用不同的处理方法。格切分用于句子结构层面,边界符判定用于短语切分,模式匹配用于词块切分,由此,提出了切分与格框架、标注一体化的藏语三级切分体系。     

The Effects of a Stimulus-Stimulus Pairing Procedure on the Unprompted Vocalizations of a Young Child Diagnosed with Autism

The current study evaluated the effects of a stimulus-stimulus pairing procedure intended to increase spontaneous vocalizations of a young child diagnosed with autism. A multiple-baseline design across two target phonemes was used to evaluate the effects of the pairing procedure on the frequency of phonemes uttered by the participant. Data were collected during presession, postsession, and follow-up periods across three conditions: Baseline, Control, and Pairing. During the Pairing conditions, a target phoneme was repeatedly vocalized by the experimenter and was systematically paired with preferred stimuli. Results from postsession observations following the pairing condition evidenced no increase in the target sounds. Practical and theoretical implications of the results are discussed.     

Stimulus-Stimulus Pairing and Subsequent Mand Acquisition of Children with Various Levels of Verbal Repertoires

Effects of a stimulus-stimulus pairing procedure on the subsequent acquisition of mand operants were investigated. An attempt was made to shape novel sounds that emerged through the pairing procedure into a mand. Six children, aged two to five years, with moderate to severe language and communication delays, participated. Two conditions were used following the pairing condition: postpairing and direct reinforcement. The emergence of mands was compared across these conditions. An additional analysis was made of the relation between participants'' baseline verbal repertoires and the effects of the pairing and the emergence of mands. Results indicate the possibility of stimulus control from a stimulus-stimulus pairing to mand as shown in two of the participants who had demonstrated high rates of vocal play and low to no verbal repertoire prior to this study. Target vocal sounds during postpairing and direct reinforcement condition remained at zero to low levels for participants with high verbal repertoire and little vocal play, warranting future studies on relations between the pre-existing verbal repertoire and the effectiveness of stimulus-stimulus pairing.     

Using Stimulus-Stimulus Pairing and Direct Reinforcement to Teach Vocal Verbal Behavior to Young Children With Autism

In this study the effect of a stimulus-stimulus pairing procedure was used as part of a clinical investigation to increase vocalizations for two young children diagnosed with autism. This procedure involved pairing a vocal sound with a preferred stimulus (e.g., toy) to condition automatic reinforcement. In addition, this study assessed the effects of a direct reinforcement procedure to bring a vocalization under echoic control following the pairing procedure for 1 of the participants. The results showed the pairing procedure was used successfully to increase a vocalization for one of the participants, and the vocalization was brought under echoic control.     

励磁系统中全控整流电路异常波形分析

现代同步发电机励磁调节器中大多数采用三相全控整流电路，可控硅整流电路输出电压波形直接影响着发电机的励磁效果。对三相全控整流电路正常、桥臂断开、脉冲丢失等情况下的波形进行分析后，给出了监视和保护措施。     

ICAST用于小区污水回用处理及自控与监测系统设计

设计了间歇／循环活性污泥技术(ICAST)用于小区生活污水就地回用处理及自动控制运行与监测水质的系统．以出水达到中水回用标准为目标，依据进水水质水量和ICAST生化反应池内溶解氧(DO)值，通过电磁流量计、水位继电器、电磁阀、PLC控制器等与计算机联接，自动设定各工艺阶段的运行参数，经济、安全、可靠地实现了污水回用处理运行和水质监测的自动化．