T. KUNDU, R.P. MATHUR and C.S. DESAI
A new hybrid method based on three‐dimensional finite element idealization in the near field and a semi‐analytic scheme using the principles of wave propagation in multilayered…
Abstract
A new hybrid method based on three‐dimensional finite element idealization in the near field and a semi‐analytic scheme using the principles of wave propagation in multilayered half space in the far field is proposed for the dynamic soil‐structure interaction analysis. The distinguishing feature of this technique from direct or indirect boundary integral techniques is that in boundary integral techniques a distribution of sources are considered at the near field boundary. Strengths of these sources are then adjusted to satisfy the continuity conditions across the near‐field/far‐field interface. In the proposed method unknown sources are placed not at the near field boundary but at the location of the structure. Then the Saint‐Venant's principle is utilized to justify that at a distant point the effect of the structure's vibration can be effectively modelled by an equivalent vibrating point force and vibrating moment at the structure's position. Thus the number of unknowns can be greatly reduced here. For soil‐structure interaction analysis by this method one needs to consider only three unknowns (two force components and one in‐plane moment) for a general two‐dimensional problem and six unknowns (three force components and three moment components) for a general three‐dimensional problem. When a vertically propagating elastic wave strikes a structure which is symmetric about two mutually perpendicular vertical planes the structure can only vibrate vertically for dilatational waves and horizontally for shear waves. Under this situation the number of unknowns is reduced to only one whereas in boundary integral and boundary element techniques the number of unknowns is dependent on the number of nodes at the near field boundary, which is generally much greater than six. Several example problems are solved in this paper using this technique for both flexible and rigid structures in multilayered soil media.
Details
Keywords
M.N. DESAI, V.K. SHAH and M.H. GANDHI
Due to the constituent nitrogen atom of the amino group, amines have been extensively used as inhibitors of metallic corrosion. This article reviews the reported uses of aniline…
Abstract
Due to the constituent nitrogen atom of the amino group, amines have been extensively used as inhibitors of metallic corrosion. This article reviews the reported uses of aniline and related aromatic amines as corrosion inhibitors.
M.N. Desai, S.S. Rana and M.H. Gandhi
COPPER is by far the most important non‐ferrous metal used in industry. By virtue of its valuable physical and mechanical properties, long life, comparative cheapness and high…
Abstract
COPPER is by far the most important non‐ferrous metal used in industry. By virtue of its valuable physical and mechanical properties, long life, comparative cheapness and high scrap value, it occupies a position next only to iron and steel in commercial importance.
M.N. Desai, S.M. Desai, M.H. Gandhi and C.B. Shah
This concluding part reviews the actions of inhibitors to acidic, ammonical, organic, atmospheric and miscellaneous product corrosion on aluminium. The comprehensive reference…
Abstract
This concluding part reviews the actions of inhibitors to acidic, ammonical, organic, atmospheric and miscellaneous product corrosion on aluminium. The comprehensive reference list is also concluded.
M.N. Desai, S.M. Desai, M.H. Gandhi and C.B. Shah
The discovery of the Hall‐Herqult process for the manufacture of aluminium made it possible to obtain the metal in large quantities. Soon it attained the position of a major…
Abstract
The discovery of the Hall‐Herqult process for the manufacture of aluminium made it possible to obtain the metal in large quantities. Soon it attained the position of a major industrial metal due to its lightness combined with strength, capacity to take up a high polish, excellent conductivity of heat and electricity. Moreover it gives a wide range of extremely valuable alloys with diverse elements such as copper, magnesium, nickel, silicon, zinc, etc.
This chapter deals with an important but neglected aspect of female labor force participation (FLFP) in urban India. Contemporary literature typically focuses on the entire urban…
Abstract
This chapter deals with an important but neglected aspect of female labor force participation (FLFP) in urban India. Contemporary literature typically focuses on the entire urban sector and ignores one important aspect of urban living – the slums and its dwellers. This study fills that critical gap by examining two different household surveys side-by-side: a primary survey of households living in slums and slum-rehabilitated colonies, and the nationally representative Indian Human Development survey-II. This study brings outs a comparative picture of nature/type of FLFP and its various correlates from both slum and non-slum areas of three metro cities of India, viz. Delhi, Kolkata and Mumbai. It further explores the similarities and the differences of the correlates for FLFP among the slum clusters of these cities. It is found that despite being poorer and marginalized, the slum dwelling women’s LFP rate is not extra-ordinarily high vis-á-vis their non-slum urban counterparts. In slums, a higher proportion of women are engaged in self-employment (including family business) and casual employments (includes domestic helps), whereas in non-slum areas relatively more women are engaged in regular salaried jobs. Regression analysis identifies correlates that have similar effects, but with different intensity, across-the-board – relationship between education and FLFP reflects a flat-bottom J-shaped pattern; being married, higher child dependency ratio and household heads with higher education significantly constrain women’s work choice; strong income effect of other household members earning on FLFP, but asset holding has no bearing. However, there are other factors that affect FLFP differently in slums and non-slum areas. Policy prescriptions are drawn.
Details
Keywords
This article has been withdrawn as it was published elsewhere and accidentally duplicated. The original article can be seen here: 10.1108/eb006785. When citing the article, please…
Abstract
This article has been withdrawn as it was published elsewhere and accidentally duplicated. The original article can be seen here: 10.1108/eb006785. When citing the article, please cite: M.N. Desai, S.S. Rana, M.H. Gandhi, (1970), “Corrosion inhibitors for copper”, Anti-Corrosion Methods and Materials, Vol. 17 Iss: 6, pp. 17 - 21.
Joseph Ikechukwu Uduji and Elda Nduka Okolo-Obasi
The purpose of this paper is critically examine the Nigeria for Women Project (NFWP) initiatives in Nigeria. Its special focus is to investigate the impact of NFWP on social…
Abstract
Purpose
The purpose of this paper is critically examine the Nigeria for Women Project (NFWP) initiatives in Nigeria. Its special focus is to investigate the impact of NFWP on social cohesion in entrepreneurship development in Nigeria.
Design/methodology/approach
This paper adopts a quasi-experimental research design to address the scarcity of quantitative studies on women’s groups in Nigeria. A total of 2,400 respondents were sampled across the rural areas of the six geographical regions of the country.
Findings
Results from the use of a combined propensity score matching and logit model indicate that though scrimpy, the NFWP intervention targeted specifically for the empowerment of women, using the women’s affinity group model has recorded significant set up in improving women’s formation of social capital through advocacy, awareness creation, provision of credit, training of women on skill acquisition, among other activities.
Practical implications
This suggests that an increase in NFWP budget that seeks to expand participation of women in women’s groups, targeted at increasing women’s social cohesion, especially in the rural communities will help lift women and girls out of poverty in the country.
Social implications
It implies that women’s groups that serve as production cooperatives, saving associations and marketing groups can enhance women’s performance in entrepreneurship development and boost rural economy production in Nigeria.
Originality/value
This research contributes to the growing field of female entrepreneurial collaboration by proposing the moderation of social cohesion as a means to sustain agriculture and rural development in developing countries. It concludes that targeting women’s groups should form the foundation of public policy for social cohesion in women’s entrepreneurship development for rural economy.
Details
Keywords
M.N. Desai and R.P. Patel
The present paper deals with chloroanilines and anisidines as corrosion inhibitors for aluminium‐3S in hydrochloric acid solutions. Some of these compounds have previously been…
Abstract
The present paper deals with chloroanilines and anisidines as corrosion inhibitors for aluminium‐3S in hydrochloric acid solutions. Some of these compounds have previously been investigated as corrosion inhibitors for aluminium‐2S1 57S2 and 65S3 in hydraulic acid. However, it is well known that the behaviour of inhibitors changes with the metal or even with a change in the composition of the alloy.
M.N. Desai and S.M. Desai
Mann, Antonucci, Nathan, Hackerman and Antropov investigated aniline and N — substituted methyl and ethylamines as corrosion inhibitors for iron in acidic media. The present study…
Abstract
Mann, Antonucci, Nathan, Hackerman and Antropov investigated aniline and N — substituted methyl and ethylamines as corrosion inhibitors for iron in acidic media. The present study was therefore undertaken to investigate the retardation of corrosion of aluminium 65S in hydrochloric acid.