Models of the self and other: Fundamental dimensions underlying measures of adult attachment.

Three studies, involving 146 undergraduates and 68 heterosexual couples, assessed the construct validity of the self- and other-model dimensions underlying the 4-category model of adult attachment. Five methods were used to assess the hypothesized dimensions: self-reports, friend-reports, romantic partner reports, trained judges' ratings of peer attachment, and trained judges' ratings of family attachment. Study 2 related the latent attachment dimensions to theoretically relevant outcome latent variables. As predicted, Ss' self models converged with direct measures of the positivity of their self-concepts, and Ss' other models converged with direct measures of the positivity of their interpersonal orientations. Study 3 related the latent attachment dimensions to 3 alternate self-report measures of adult attachment and showed that the 2 dimensions served as an organizing framework for the different measurement approaches. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

An Optimization Approach for Assessing the Reliability of Rainwater Harvesting

This study was aimed at developing an optimization approach to rainwater harvesting (RWH) considering three (3) water consumption scenarios (WCS). These scenarios which include basic water need (BWN), pour flush (PF) and full plumbing connection (FPC) corresponding to 50 litres per capita per day (lpcd), 75(lpcd) and 150(lpcd) respectively were simulated for different categories of buildings. Reliability of supply was determined by first obtaining composite surplus/deficit of rainwater followed by optimizing the redistribution of surplus rainwater harvested to deficient buildings. Results showed that when total annual rainfall intercepted by roof exceeded total demand, 100% reliability of water supply was guaranteed. Reliability was found to be a linear function of storage. When reliability of supply is possible, the optimized storage bears an inverse exponential relationship to the roof plan area per capita. The relationship between surplus/deficit and roof plan area per capita follows a one-phase decay pattern. An optimal redistribution of surplus water from self-sufficient buildings to deficient ones gave an improvement in supply reliability from 64 to 87% for basic water need, 47 to 58% for pour flush and 28 to 29% for full plumbing connection.     

Commodity prices as related to vegetable oil marketing,prices and utilization

Journal of the American Oil Chemists' Society -     

Design formalism for collaborative assembly design

Joints in product design are common because of the limitations of component geometric configurations and material properties, and the requirements of inspection, accessibility, repair, and portability. Collaborative product design is emerging as a viable alternative to the traditional design process. The collaborative assembly design (AsD) methodologies are needed for distributed product development. Existing AsD methodologies have limitations in capturing the non-geometric aspects of designer's intent on joining and are not efficient for a collaborative design environment. This paper introduces an AsD formalism and associated AsD tools to capture joining relations and spatial relationship implications. This AsD formalism allows the joining relations to be modeled symbolically for computer interpretation, and the model can be used for inferring mathematical and physical implications. An AsD model generated from the AsD formalism is used to exchange AsD information transparently in a collaborative AsD environment. An assembly relation model and a generic assembly relationship diagram are to capture assembly and joining information concisely and persistently. As a demonstration, the developed AsD formalism and AsD tools are applied on a connector assembly with arc weld and rivet joints.     

The environmental impact of crude oil formation water: A multivariate approach

Water bodies receiving effluents from gas flow stations were sampled for ten months (March to December). Fifteen physicochemical parameters were monitored at six locations. Results obtained were analyzed unsing principal component analysis and cluster analysis. Five principal componets accounting for 72.43% of total variance were isolated. The first principal component was a measure of sea water intrusion, the second componet was a measure of total solids, the third component was a measure of organic pollution while the fourth and fifth principal component depicted the impact of effluent discharges. Effluents from gas flow stations were not the major causes of pollution of water resources in the locations of study. Cluster analysis showed no significant variation in the physicochemical characteristics of water samples based on location. Physicochemical parameters exhibited a seasonal pattern as a result of dilution by rainfall, reduced rate of evaporation in rainy season and dissolution of gaseous products of gas flaring in rain. Metals had no significant effect on the quality of water sampled from the six locations during the period of monitoring.     

A utility theory based robot selection and evaluation for electronics assembly

As the number of robots in the market and their implementations increase, it becomes more difficult to find which robot is the most suitable for a particular application. Today, electronics assembly is one of the areas where robots are highly used. This is because of the advantages which robots offer in complex tasks of electronic assembly.

In this paper a decision making algorithm which uses utility theory was developed for the selection and evaluation of robots for electronics assembly.     

UL-PML: constraint-enabled distributed product data model

The global economy has made manufacturing industry more distributed than ever before. Product design requires more involvement from various technical disciplines at different locations. In such a geographically and temporally distributed environment, efficient and effective collaboration on design is vital to maintain product quality and organizational competency. Current standard computer-aided design data formats do not support design collaboration effectively in terms of design information and knowledge capturing, exchange, and integration. Design constraints cannot be represented and transferred among different groups, and design information cannot be integrated efficiently within a distributed environment. A new design data model, the Universal Linkage model, is developed here to represent design-related information for network-based collaborative design. It incorporates geometric and non-geometric constraints with traditional geometric elements, thus allowing more design knowledge sharing in collaborative design. Segments of design information can be linked and integrated into a set of complete product data. Thus, lean information exchange can be realized. This model, which has good properties of openness and extensibility, is represented by Directed Hyper Graph and Product Markup Language.     

Redistribution of pads on a singulated IC die using laser direct-write ablation

The use of laser direct-write technology is demonstrated for rapid turnaround redistribution of pads on known good integrated circuit dice. The technology, which is suitable for rapid prototyping of advanced electronic packages, employs an automated laser ablation system with wavelength at 355nm to pattern thin copper films to form the interconnect and vias in the polyimide interlevel insulator. The ablation tool is designed to directly accept the CAD data and write the metallization and via level patterns with excellent (/spl plusmn/3/spl mu/m) layer-to-layer registration. This process is maskless and, except for cleaning steps, does not require patterning by wet chemical etching. The implementation of a change in the design can be done rapidly and involves modifying the CAD data, downloading it to the laser ablation tool, and fabricating a part according to the new design. This paper illustrates the use of laser direct-write ablation for fabrication of via chain test structures and redistribution of pads on functional integrated circuits on singulated dice. Comparable electrical test results were obtained between structures fabricated using laser ablation technology and those fabricated on full 150-mm diameter wafers using conventional photolithography and etch processes.