一种新型的现场设备级监控网络--ASI总线

ASI总线是一种主从结构的底层网络系统。主机和从机通过2芯电缆可以组成多种拓扑结构的双向数字通信系统。信号和电源共用2芯电缆。信号以开关量为主，通过网关主机可以和现场总线连接。ASI总线技术成熟，简单可靠，费用较低，很快会成为国际标准。因此在自动化和低压电器系统中会有广阔的发展前途和应用领域。     

剥片机组ASI网络模块改造

本文主要介绍电解剥片机组ASI网络模块的结构、改造背景、方案及设计思路。     

全球第一批ASI铝将进入市场

正近日,力拓集团Rio Tinto在澳大利亚和加拿大的系列运营设施—包括铝土矿开采、氧化铝精炼、铝冶炼到熔铸已经成功地获得了ASI的首个铝监管链(CoC)标准认证。全球首个ASI铝监管链标准认证的颁布,意味着ASI铝将进入市场,而此时距ASI这一自愿性标准倡议的正式启动仅间隔6个月。ASI铝的追溯,是由认证企业在生产过程中采用质量平衡模型进行的。     

西南铝板带有限公司成为铝业管理倡议ASI新成员

正中铝西南铝板带有限公司近日成功加入ASI,成为生产和转化加工类成员,使ASI成员总数达到172家。中铝西南铝板带有限公司希望通过加入铝业管理倡议ASI,致力于生产符合利益相关者的社会、道德、环境和人权期望的铝加工产品,并期待与ASI及其参与者合作,以促进铝工业的可持续性发展。     

ASI现场总线在残极洗涤堆垛机组的应用

介绍ASI总线技术的特点以及在残极洗涤堆垛机组的应用。     

一转炉副枪测温主机国产化改造

针对转炉副枪测温主机与国产化测温主机进行对比研究,确定了测温主机的国产化方案并进行实施,使用效果良好,有效解决了达涅利测温主机不能满足硅钢冶炼的难题。     

西门子自动化产品在电解机组中的应用

介绍了西门子工业自动化控制产品在电解阳极机组控制系统中的应用,所组成的系统配置和网络结构;并从软硬件设计方面,叙述了对关键功能的成功实现,建立了Profibus-DP网络和现在总线ASI两种网络,并为后续改造提供一个可靠的网络平台。     

ASI从站的结构和工作流程

详细介绍了ＡＳＩ总线从站的结构和工作流程,并对从站接口的技术特征作了简要的说明。     

ASI总线的信号传输系统

ＡＳＩ总线系统由主站、从站和传输系统３部分组成,而传输系统又由两芯ＡＳＩ电缆、ＡＳＩ电源和数据解耦电路构成。本文重点介绍了ＡＳＩ信号的调制过程,ＡＳＩ电源和数据的解耦原理以及ＡＳＩ报文结构和访问方式。     

全球首批经过ASI认证的可持续性铝罐推向市场

正戴姆Damm公司(西班牙领先的啤酒及饮料公司)已成功通过铝业管理倡议ASI绩效标准和监管链标准双认证,成为世界上第一家获得双重认证的饮料公司。这一认证涵盖了铝罐制造、啤酒酿造和回收利用的铝价值链,保证了整个铝供应链在环境、道德和社会方面的高标准要求。     

Initial validation of a computer-administered Addiction Severity Index: The ASI–MV.

The Addiction Severity Index—Multimedia Version (ASI–MV) is a CD-ROM-based simulation of the interview-administered Addiction Severity Index (ASI). Clients in treatment (N ?=?202) self-administered the ASI–MV to examine the test–retest reliability, criterion validity, and convergent–discriminant validity of the ASI–MV. Excellent test–retest reliability was observed for composite scores and severity ratings. Criterion validity, tested against the interviewer-administered ASI, was good for the composite scores. For severity ratings, variable agreement was observed between the ASI–MV and each interviewer, suggesting poor interrater reliability among interviewers. This conclusion was bolstered by a finding of superior convergent–discriminant validity for both composite scores and severity ratings compared to the standard ASI. The ASI–MV is a viable alternative to the expensive and potentially unreliable interviewer-administered version. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

PLC主从站通信及切换的实现

以西门子公司S7-200系列小型PLC系统为例,介绍了主从站通讯的设计思路及实现方法。根据实际使用的要求,解决了主从站控制权无扰动切换的问题。     

The Ambivalent Sexism Inventory: Differentiating hostile and benevolent sexism.

The authors present a theory of sexism formulated as ambivalence toward women and validate a corresponding measure, the Ambivalent Sexism Inventory (ASI). The ASI taps 2 positively correlated components of sexism that nevertheless represent opposite evaluative orientations toward women: sexist antipathy or Hostile Sexism (HS) and a subjectively positive (for sexist men) orientation toward women, Benevolent Sexism (BS). HS and BS are hypothesized to encompass 3 sources of male ambivalence: Paternalism, Gender Differentiation, and Heterosexuality. Six ASI studies on 2,250 respondents established convergent, discriminant, and predictive validity. Overall ASI scores predict ambivalent attitudes toward women, the HS scale correlates with negative attitudes toward and stereotypes about women, and the BS scale (for nonstudent men only) correlates with positive attitudes and stereotypes about women. A copy of the ASI is provided, with scoring instructions, as a tool for further explorations of sexist ambivalence. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Comment on Holloway and McNally's (1987) "Effects of anxiety sensitivity on the response to hyperventilation."

W. Holloway and R. J. McNally (see record 1988-07600-001) found that normals with high scores on the Anxiety Sensitivity Index (ASI), an instrument developed to assess beliefs regarding the adverse consequences of anxiety, reported more anxiety and more frequent and intense somatic sensations following hyperventilation than did normals with low scores on the ASI. They concluded that this result provides support for the construct validity of the ASI and thus for the construct of anxiety sensitivity. Nevertheless, we argue that (a) the developers of the ASI have conflated beliefs regarding the adverse consequences of anxiety with fear of these consequences, (b) the accumulated evidence for the construct validity of the ASI is weak, and (c) Holloway and McNally's design and analyses do not permit them to exclude the more parsimonious explanation that trait anxiety accounts for their findings. Implications for research on anxiety sensitivity are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

The Aberrant Salience Inventory: A new measure of psychosis proneness.

Aberrant salience is the unusual or incorrect assignment of salience, significance, or importance to otherwise innocuous stimuli and has been hypothesized to be important for psychosis and psychotic disorders such as schizophrenia. Despite the importance of this concept in psychosis research, no questionnaire measures are available to assess aberrant salience. The current research describes 4 studies designed to develop and validate the Aberrant Salience Inventory (ASI) as a measure of aberrant salience. In Study 1, an overinclusive item pool was subjected to an exploratory factor analysis, and items were kept or discarded based on factor loadings. In Study 2, the 5-factor structure of the ASI was confirmed with a confirmatory factor analysis, and a 2nd-order factor analysis found evidence consistent with a single higher order factor. Study 2 also provided support for the scale score's convergent validity as the ASI was strongly associated with psychosis-proneness measures and dissociation measures and moderately correlated with measures associated with levels of dopamine. This study also provided support for its discriminant validity as the ASI was only weakly associated with social anhedonia. Study 3 found that participants with elevated psychosis proneness had increased ASI scores, but in contrast, participants with elevated social anhedonia had similar scores to comparison participants. Finally, Study 4 found that participants with a history of psychosis had elevated ASI scores compared to a psychiatric comparison group. Overall, the ASI demonstrated sound psychometric properties and may be useful for measuring aberrant salience and psychosis proneness in clinical and nonclinical samples. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Combining major life events and recurrent hassles in the assessment of stress in Chinese adolescents: Preliminary evidence.

Major life events and hassles have been considered 2 distinct constructs in the measurement of stress. Research also shows that chronic events are more impactful than time-limited ones. This study reports a new approach to measuring stress in which major life events are combined with recurrent hassles to form a single index—the Adolescent Stress Index (ASI). High school students (N = 365) in Hong Kong responded twice at a 3-month interval to measures of major life events and hassles, the ASI, and measures of physical and depressive symptoms. Data were analyzed using structural equation modeling. Results showed that the ASI predicted symptoms concurrently and prospectively above and beyond the effects of existing measures of major life events and hassles. The ASI is a viable instrument for documenting the cumulative impact of major and minor events in the lives of adolescents. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Active specific immunotherapy for stage II and stage III human colon cancer: a randomised trial

BACKGROUND: Colon cancer is curable by surgery, but cure rate depends on the extent of disease. We investigated whether adjuvant active specific immunotherapy (ASI) with an autologous tumour cell-BCG vaccine with surgical resection was more beneficial than resection alone in stage II and III colon cancer. METHODS: In a prospective randomised trial, 254 patients with colon cancer were randomly assigned postoperative ASI or no adjuvant treatment. ASI was three weekly vaccinations starting 4 weeks after surgery, with a booster vaccination at 6 months with 10(7) irradiated autologous tumour cells. The first vaccinations contained 10(7) BCG organisms. We followed up patients for time to recurrence, and recurrence-free and overall survival. Analysis was by intention to treat. FINDINGS: The 5.3 year median follow-up (range 8 months to 8 years 11 months) showed 44% (95% CI 7-66) risk reduction for recurrence in the recurrence-free period in all patients receiving ASI (p=0.023). Overall, there were 40 recurrences in the control group and 25 in the ASI group. Analysis by stage showed no significant benefit of ASI in stage III disease. The major impact of ASI was seen in patients with stage II disease, with a significantly longer recurrence-free period (p=0.011) and 61% (18-81) risk reduction for recurrences. Recurrence-free survival was significantly longer with ASI (42% risk reduction for recurrence or death [0-68], p=0.032) and there was a trend towards improved overall survival. INTERPRETATION: ASI gave significant clinical benefit in surgically resected patients with stage II colon cancer. ASI has minimal adverse reactions and should be considered in the management of stage II colon cancer.     

Hierarchical structure and general factor saturation of the Anxiety Sensitivity Index: Evidence and implications.

The Anxiety Sensitivity Index (ASI) is one of the most widely used measures of the construct of anxiety sensitivity. Until the recent introduction of a hierarchical model of the ASI by S. O. Lilienfeld, S. M. Turner, and R. G. Jacob (1993), the factor structure of the ASI was the subject of debate, with some researchers advocating a unidimensional structure and others proposing multidimensional structures. In the present study, involving 432 outpatients seeking treatment at an anxiety disorders clinic and 32 participants with no mental disorder, the authors tested a hierarchical factor model. The results supported a hierarchical factor structure consisting of 3 lower order factors and 1 higher order factor. It is estimated that the higher order, general factor accounts for 60% of the variance in ASI total scores. The implications of these findings for the conceptualization and assessment of anxiety sensitivity are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)