Mechanical Systems and Signal Processing.doc

In order to realize preliminary evaluation of process design, a virtual processing algorithm for the intelligent stamping process was proposed. Using this algorithm, all phases, process design, process control and system implementation, can be performed virtually. To enhance the reliability of a system, a ductile fracture criterion was applied to the virtual system for fracture prediction. Through the implementation of the system, it was confirmed that all the process phases are virtually performed in order, and finally, cup height improvement was accomplished. This analytical result indicates that the virtual processing algorithm is highly useful for system evaluation during the design process before constructing the real system. Engineers can save time and cost savings considerable by using this virtual processing system.Article Outline1. Introduction2. Virtual processing system 2.1. System architecture2.2. System implementation procedure3. Ductile fracture criterion4. System implementation 4.1. Constant BHF deep-drawing operation4.2. Fuzzy adaptive controlled variable BHF deep-drawing operation5. Results and discussion6. Concluding remarksReferencesPurchase$ 37.95635Mechatronic design and injection speed control of an ultra high-speed plastic injection molding machineOriginal Research ArticleMechatronics, Volume 19, Issue 2, March 2009, Pages 147-155Ching-Chih Tsai, Shih-Min Hsieh, Huai-En KaoClose preview| Related articles|Related reference work articles AbstractAbstract | Figures/TablesFigures/Tables | ReferencesReferences AbstractThis paper presents pragmatic techniques for mechatronic design and injection speed control of an ultra high-speed plastic injection molding machine. Practical rules are proposed to select specifications of key mechatronic components in the hydraulic servo system, in order to efficiently construct an industry-level machine. With reasonable assumptions, a mathematical model of the injection speed control system is established and open-loop experimental data are then employed to validate the system model. By the model, a gain-scheduling PI controller and a fuzzy PI controller are presented, compared and then implemented into a digital signal processor (DSP) using standard C programming techniques. Experimental results are conducted to show that the two proposed controllers are capable of achieving satisfactory speed tracking performance. These developed techniques may provide useful references for engineers and practitioners attempting to design pragmatic, low-cost but high-performance ultra high-injection speed controllers.Article Outline1. Introduction2. Mechatronic design 2.1. System design2.2. Specification determination of the four key mechatronic components 2.2.1. Specification of the hydraulic cylinder2.2.2. Specification of the proportional servo valve2.2.3. Specification of the accumulators2.2.4. Specification of the pump3. Mathematical modeling and model validation4. Injection speed controllers design 4.1. Gain-scheduling PI controller design4.2. Fuzzy PI controller design5. Experimental results and discussion6. ConclusionsAcknowledgementsReferencesPurchase$ 31.50636Issues in the multi-cultural assessment of parentchild interaction: An exploratory study from the starting early starting smart collaborationOriginal Research ArticleJournal of Applied Developmental Psychology, Volume 26, Issue 3, May-June 2005, Pages 241-275Victor J. Bernstein, Elizabeth J. Harris, Claudia WeLaLa Long, Elizabeth Iida, Sydney L. HansClose preview| Related articles|Related reference work articles AbstractAbstract | Figures/TablesFigures/Tables | ReferencesReferences AbstractA national, multi-site study of behavioral health services integration developed a parentchild interaction assessment tool and culturally anchored videotape protocol. Representatives from programs serving Chinese, Native American1, Latin-American, African-American, and Anglo-American families discussed cross-cultural issues in parenting and developed a set of guiding principles for the assessment of parentchild interaction, resulting in a revised ParentChild Observation Guide (PCOG: Bernstein, Percansky, & Hans, 1987 Bernstein, V. J., Percansky, C., and Hans, S. L. (1987, April). Screening for socialemotional impairment in infants born to teenage mothers. Paper presented at the biannual meeting of the Society for Research in Child Development, Baltimore, MD) and program-specific laboratory protocols. Data from ratings of videotapes of 683 preschoolers and their primary caregivers are presented. Across ethnic groups, parental sensitivity correlated with child involvement and parental discipline correlated with child compliance. Mean PCOG factor scores differed between ethnic groups, and correlations between PCOG factors and independent measures of child social skills and family environment differed across groups, suggesting that different aspects of parentchild interaction may have more salience in different ethnic groups. The collaborative process and how “best practice” was applied to the development of the PCOG and videotape protocol as well as strengths and limitations of the PCOG are discussed.Article Outline1. Introduction 1.1. Parenting practices among different cultural groups participating in SESS1.2. Precautions against overgeneralization1.3. Existing approaches to assessment of parenting practices: the HOME scales1.4. Assessing parentchild interaction across cultures: the multi-cultural workgroup 1.4.1. Recognition of cultural influences1.4.2. Meaningful involvement of cultural representatives1.4.3. Virtually all societies value their children (Mead, 1972)1.4.4. Individual differences among families from the same culture must be observable, i.e., reliably captured by the assessment instrument1.5. Developing a multi-cultural parentchild interaction instrument 1.5.1. Discussion of parentchild interaction videotapes1.5.2. The ParentChild Observation Guide (PCOG)1.6. Videotape protocol2. Method 2.1. Participants2.2. General procedures2.3. Measures 2.3.1. Caregiverchild interaction: ParentChild Observation Guide (PCOG) instrument description2.3.2. PCOG coding2.3.3. Other baseline measures 2.3.3.1. The preschool kindergarten behavior scales: parent and teacher versions2.3.3.2. Home Observation for the Measurement of the Environment (HOME)preschool version2.3.3.3. Conflict Tactics Scale3. Results 3.1. Principal components analysis3.2. Analysis of covariance: comparison of ethnic groups on PCOG factor-based subscales3.3. Construct validity: relationship of the parentchild observation guide scores to other measures overall and within ethnic groups 3.3.1. Interrelations among the PCOG subscales3.3.2. Relation of PCOG subscale scores to preschool behavior (PKBS) scores (reported by parents and by teachers)3.3.3. Relation Of PCOG subscale scores to home and family factors (HOME and CTS scores)4. Discussion 4.1. Multi-cultural workgroup4.2. Universalist perspective4.3. Culturally anchored perspective 4.3.1. Chinese children and parents4.3.2. Latin-American children and parents4.3.3. Anglo-American children and parents4.3.4. African-American children and parents4.4. SummaryAcknowledgementsReferencesPurchase$ 35.95637Integration of a handheld based anaesthesia rounding system into an anaesthesia information management systemOriginal Research ArticleInternational Journal of Medical Informatics, Volume 75, Issue 7, July 2006, Pages 553-563Carsten Fuchs, Lorenzo Quinzio, Matthias Benson, Achim Michel, Rainer Rhrig, Birgit Quinzio, Gunter HempelmannClose preview| Related articles|Related reference work articles AbstractAbstract | Figures/TablesFigures/Tables | ReferencesReferences SummaryBackgroundAt the University Hospital Giessen, an anesthesia information management system (AIMS) is used for online record keeping of perioperative patient care, but preoperative anaesthesia assessments were still being recorded on paper and subsequently entered into the AIMS. Personal digital assistants (PDAs) seem to be useful instruments to establish a seamless digital anesthesiological documentation. ObjectivesWe decided to implement a solution for direct integration of data gathered during the preoperative assessment into the existing data management infrastructure. Parallel to the development of the system, we surveyed the future users to match their wishes and needs as far as possible. System descriptionA C program embedding the preoperative AIMS data fields was developed. Data alignment with the Hospital information system (HIS) is controlled by a Java desktop software. The anaesthesiologist completes the available fields at the patients bedside following the same algorithm and integrity check as the PC version. Status reportOverall, 68% of the surveyed physicians supported the implementation of the system. The PDA solution has been available since May 2002. Data replication into the handheld and integration of mobile collected data into the AIMS generally work without problems. The HIS interconnection software converts the PDA file into the AIMS format for further processing. DiscussionT