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This paper aims to present experimental and finite volume method (FVM)-based simulation studies on the scaling effect on the capillary contact angle and entrant pressure for a three-dimensional encapsulation process of ball-grid array (BGA).

With the development of various sizes of BGA packages, the scaling effect of BGA model on capillary underfill (CUF) process is investigated together with the influences of different industrial standard solder bump arrangements and dispensing methods used as case study.

The experimental results agree well to the simulation findings with minimal deviation in filling time and similar flow front profiles for all setups. The results revealed that the capillary contact angle of flow front decreases in scale-up model with larger gap height observed and lengthens the encapsulation process. Statistical correlation studies are conducted and accurate regression equations are obtained to relate the gap height to the completion filling time and contact angle. CUF threshold capillary pressures were computed based on Leverett-J function and found to be increasing with the scale size of the package.

These statistical data provide accurate insights into the impact of BGA’s scale sizes to the CUF process that will be benefiting the future design of BGA package. This study provided electronic designers with profound understanding on the scaling effect in CUF process of BGA, which may be extended to the future development of miniature-sized BGA and multi-stack device.

This study relates the flow behaviour of encapsulant to its capillary contact angle and Leverett-J pressure threshold, in the CUF process of different BGA and dispensing conditions. To date, no research has been found to predict the threshold pressure on the gap between the chip and substrate.

The objective of this paper is to propose a practical and operable method to identify and fill organisational knowledge gaps during new product development.

From a microscopic view, this paper introduces the tree-shaped organisational knowledge structure to formalise the knowledge gaps and their internal hierarchical relationships. Based on the organisational knowledge structure, organisational knowledge gaps are identified through tree matching algorithm. The tree-edit-distance method is introduced to calculate the similarity between two organisational knowledge structures for filling knowledge gap.

The proposed tree-shaped organisational knowledge structure can represent organisations' knowledge and their hierarchy relationships in a structured format, which is useful for identifying and filling organisational knowledge gaps.

The proposed concept of organisational knowledge structure can quantify organisational knowledge. The approach is valuable for strategic decisions regarding new product development. The organisational knowledge gaps identified with this method can provide real-time and accurate guidance for the product development path. More importantly, this method can accelerate the organisational knowledge gap filling process and promote organisational innovation.

This paper aims to provide a deeper understanding of using filling materials that are used to fill gaps in wooden objects, and their response to changes in the surrounding environment to evaluate wood gap fillers and choose the best material. As a wide variety of materials, but most of them were unsuitable for filler mixtures. Specific materials were used, which can adapt to changes in wood size in response to changes in humidity. This research discusses the results of experiments that were conducted to determine how gap fillers composed of glass microballoons, microcrystalline cellulose and paper pulp fills are mixed with Klucel G, Paraloid B-72 and methyl cellulose as binders, and respond in various conditions.

It requires using several scientific and analytical techniques to provide a deeper understanding of filling materials characterization, dimensional stability, their shrinkage and study mechanical properties.

The analytical study of filling gaps in wooden objects with different filling materials allowed defining that the main drawbacks of the examined gap fillers were low water resistance, poor dimensional stability upon drying, or exposure to water vapor or liquid water, and fragility. Two types of gap fillers with high mechanical properties and pH values similar to those of wood were found to be appropriate for application on wooden archaeological artifacts.

The importance of the experimental study was to determine suitable filling materials and provide the basic characteristics of filling materials reversibility, workability, dimensional stability, lack of shrinkage, drying, ability to take color and be shaped, stability with aging, compatibility with wood in terms of behavior with changing humidity and non-toxicity. Also, strength properties or their likelihood to deform easily allowing changes in the shape of the wooden object during the movement of wood, either of which may be desirable in specific circumstances.

The study aims to assess the efficiency of nanocomposite to improve the properties of gap-filling materials for pottery artifacts.

Five different pastes were used in the laboratory studies. The pastes consist mainly of pottery powder (grog), dental plaster, microballoons and an adhesive of Primal AC33, nano-silica and nano kaolinite in various concentrations. The prepared samples were subjected to accelerated heat and light aging. Besides, some investigations were used to evaluate the efficacy of the additive nanomaterials, such as TEM, digital and scanning electron microscopy microscopes. Contact angle, color change, shrinkage degree, physical properties and compressive strength tests were also conducted.

The results indicated that using Nano-silica considerably improves the mechanical strength and decreases the shrinkage of gap-filling materials. According to the results, a mixture of grog, microballoons and Primal AC33/Nano-silica Nanocomposites is the optimal gap-filling paste for archaeological pottery. Moreover, this paste showed a higher contact angle (120°), lower color change (ΔE = 2.62), lower shrinkage (3.3%), lower water absorption (3.36%), lower porosity (5.05%) and higher compressive strength (5124 N/mm²).

This paper attains to develop an economic polymer-nanocomposite that can be used with gap-filling materials for pottery artifacts.

The extent to which means-tested transfers, social insurance, and tax credits fill the gap between a family's private resources and the poverty threshold is a periodic barometer of the social safety net. Using data on families from the Current Population Survey I examine how the level and composition of before- and after-tax and after-transfer poverty gaps changed in response to changes in the policy and economic landscapes over the past two decades. The estimates presented here indicate not only dramatic changes in the level and sources of income maintenance programs filling the poverty gap, but also dramatic changes in which demographic groups successfully fill the gap. From the peak-to-peak business-cycle years of 1979 to 1999, the fraction of the gap left unfilled among non-elderly families in poverty has expanded by 25 percent, while the unfilled gap has increased by 50 percent among single female-headed families, families headed by non-whites, and families residing in the Northeast. In a given year the poor in the South fill considerably less of the poverty gap with cash welfare, but make up for much of the shortfall with higher payments of food stamps, SSI, and SSDI. Over time the poor in all regions of the country have substituted SSI, SSDI, and the EITC for cash welfare. Indeed, by 1999 the unfilled gap for families with related children present would be one-fifth larger without the EITC. With the exception of married-couple families, this apparent rate of replacement of disability payments and tax credits for cash welfare is less than one for one, leaving most poor families, especially non-white families and single female-headed families, financially more vulnerable today than in previous decades.

Management is a blended discipline with characteristics of both science and art. The component science is to be learnt and art to be practiced. This art component of management education is the really challenging part, and this is where the management educational institutions build their uniqueness. The present management education needs a paradigm shift in order to fulfill the growing futuristic demands of the industry. The quality gaps identified through review of literature are preach–practice, industry–institution linkages, quality faculty, updated curriculum, soft skills development, research, online platforms and updated pedagogies. The researcher has taken an attempt to do a dyadic study in India.

The researcher has taken an attempt to do a dyadic study in India to analyze the perception of the management faculty and management students toward filling the quality gaps for a futuristic management education. The study has included 125 management faculties and 1200 management students through simple random sampling, and the data are collected through survey method.

The independent “t” test has been applied. The management faculties exhibit high degree of acceptance for filling the quality gaps such as research gaps, online platforms and industry and institution linkages since the mean scores are 4.22, 4.20 and 4.14 respectively. The management students exhibit high degree of acceptance for filling the quality gaps such as online platforms, updated pedagogies and soft skills development since the respective mean scores are 3.87, 3.85 and 3.82.

The research area chosen for the study is reflecting the scenario of management education in developing countries such as India. The scenario may differ to developed countries.

When the quality of the management education is enriched, it will create global management professionals who will contribute qualitatively to the industries and uplift the overall global economic developments.

The present study is enriching the existing literature review, by comparing the perception of both the counterparts, the management faculty and students, about the teaching and learning process. Thus, it can be concluded that the outcome of this study is relevant for the management educational institutions, and the need of the hour for the management education is definitely to fill the quality gaps, and all the management educational institutions have to be prepared enough to overcome the gaps with the support of their well-planned strategies. The futuristic demands are ever growing, even then the gap between the present and future expectations of the industry need to be well considered and bridged. As a result of the paradigm shift, the quality of the management education will be enriched, and it will create global management professionals. As a result of this quality-conscious education, a reputed brand image and set of loyal customers may also be developed (Akareem and Hossain, 2016). The learners of quality management education will contribute qualitatively to the industries and uplift the overall global economic developments. Further research is needed to measure the post impact of filling the quality gaps in the arena of management education.

The quality gaps identified through review of literature are preach–practice, industry–institution linkages, quality faculty, updated curriculum, soft skills development, research, online platforms and updated pedagogies.

The purpose of this paper is to analyze the processes of identification, emergence and filling of organizational knowledge gaps over an extended period of time, using the strategy in action perspective. Specifically, it aims to explore the nature and types of knowledge gaps, to capture their changes and to shed some light on the processes of filling knowledge gaps.

The study is based on two case studies and adopts a processual approach. It analyses 40 years of data collected using secondary sources and semi-structured interviews over a period of two years and identifies critical organizational events both in retrospect and real time.

The findings show that the two case study companies have identified a number of knowledge gaps over the 40 years period. Changes in the nature and type of knowledge gaps are identified and discussed in detail leading to a new taxonomy of organisational knowledge gaps. The findings report that knowledge gaps emerge due to changes in both exogenous and endogenous conditions over time. The filling of those gaps depends on a number of factors. Among these, the ability to make a distinction between “strategic” and “imposed” knowledge gaps and the ability to build absorptive capacity within a stipulated time frame have a predominant role.

The respondents were asked to look back into the history of their company using their memory of events to provide explanations surrounding critical organizational events. Since some of the respondents had not witnessed all of the events in question, their responses were at times based on hearsay. However, every effort was made to check the authenticity of the respondents ' explanations, such as using a range of sources and discussing the events with respondents at different hierarchical levels of the company.

This study provides examples of knowledge in practice and puts forward a new taxonomy of knowledge gaps which can help managers to deal with imposed and strategic knowledge requirements. Specifically, this study equips managers with tools on how to devise their knowledge strategy, how to identify their knowledge requirements and what are different sources (internal and external) which they can explore to fill those knowledge gaps.

The paper builds on the strategy in practice perspective, which stresses the need for further studies to link theoretical frameworks with practical solutions. In this respect, this paper attempts to make sense of organizational knowledge theory by applying it in real life business situations and by unearthing the concept and usage of knowledge gaps. The use of a retrospective processual approach to study changes in organizational knowledge requirements over time is another interesting aspect of this research. Finally, the paper provides a new taxonomy of organizational knowledge gaps.

The purpose of this article is to compare the methods of interpretation and gap filling in the United Nations Sales Convention (CISG) and in the Draft Common European Sales Law (CESL). In particular, it aims to examine whether the established interpretation and gap filling method of the CISG can and should be used for the CESL.

The article looks at the method by which international case law and doctrine interpret the CISG and fill its gaps. The article compares this method with the method that is provided for in the CESL instrument but has to be implemented.

It is suggested that despite its nature as European community law, CESL should be interpreted in a broad international way since it does not only cover internal EU sales, but also transactions involving parties from outside the EU. For this reason its interpretation and gap filling should follow the method of the CISG so as to interpret similar provisions in a similar way in order to harmonize law within and outside the EU.

Both the CISG and CESL intend to unify legal traditions or different legal systems; the CISG tries to harmonize globally what CESL tries to harmonize regionally. It is important that these two instruments complement one another by the avoidance of divergent interpretations of similar provisions. It would helpful for further research to assess whether and how two decades of experience with the CISG can be used in the interpretation and application of CESL.

CESL's interpretation provision, if it is enacted, is unlikely to change from the current version. The way CESL is interpreted and how its gaps filled will determine its practical significance as a viable opt‐in national law. It is therefore necessary to develop in advance the right interpretive methodology if CESL is to become a meaningful alternative instrument.

The article suggests that the CESL should not be interpreted in the traditional way European community law is interpreted, but, instead, be interpreted under a broad international perspective. It also advances the idea of interconventional interpretation by which the CISG would guide the interpretation of similar provisions found in CESL.