270 research outputs found
Adaptive Port Masterplanning for Europoort at Port of Rotterdam
No full textWaterborne transport infrastructures play a crucial role in global integration, and ports are key components to materialise this amalgamation. However they are constantly challenged to keep fulfilling their functions in a changing environment. Port of Rotterdam, the largest port in Europe and the Western hemisphere too, faces those challenges on a daily basis. In order to maintain and enhance the future efficiency of the Harbour Industrial Complex, strategic adaptations based on long-term planning are required. This is more relevant on those existing port areas such as Europoort, where basic infrastructure is approaching the end of their life cycle, and fragmentation of original plots led to inefficient use of the land and some waterfront areas. In order to meet these needs, this study presents the application of Adaptive Port Planning framework (Taneja, 2013) to the existing Europoort Masterplan for increasing its robustness while ensuring that the port has the license-to-operate and the license-to-grow in the long-term. The Adaptive Port Planning approach goes further than the traditional port planning approach throughout incorporating uncertainty and flexibility considerations. Furthermore, this project also integrates the PIANC Green Ports approach (PIANC, 2014), as well as other existing frameworks towards a sustainable growth of the port.Hydraulic EngineeringCivil Engineering and Geoscience
Bordered and Pandiagonal Magic Squares Multiples of 7
No full textDuring past years author worked with block-wise bordered magic squares of even orders. It includes blocks of orders 4, 6, 8, 10, etc. Most of the cases are with equal sums magic squares. This type of work is an extension of classical bordered magic squares. In case of multiples of 4, the extension is made for pandiagonal magic squares (click here). For multiples of order 6 refer Taneja (click here). For the first time, we are presenting here bordered magic squares of odd number blocks. Recently, author worked on mutiples of 3 and 5, based on different sums magic squares of orders 3 and 5 (order3, order5). This work is for borders of magic squares of order 7. It is done with two types of magic squares of order 7. One type is pandiagonal magic squares, and another as bordered magic squares. This work is up to order 49. Higher orders examples can be seen in Excel file attached with the work. The total work is up to order 140. Pandiagonal magic squares based on equal sums pandiagonal magic squares of order 7 are also included in Excel file
Block-Wise Bordered and Pandiagonal Magic Squares Multiples of 7
No full textDuring past years author worked with block-wise bordered magic squares of even orders. It includes blocks of orders 4, 6, 8, 10, etc. Most of the cases are with equal sums magic squares. This type of work is an extension of classical bordered magic squares. In case of multiples of 4, the extension is made for pandiagonal magic squares (click here). For multiples of order 6 refer Taneja (click here). For the first time, we are presenting here bordered magic squares of odd number blocks. Recently, author worked on mutiples of 3 and 5, based on different sums magic squares of orders 3 and 5 (order3, order5). This work is for borders of magic squares of order 7. It is done with two types of magic squares of order 7. One type is pandiagonal magic squares, and another as bordered magic squares. This work is up to order 49. Higher orders examples can be seen in Excel file attached with the work. The total work is up to order 140. Pandiagonal magic squares based on equal sums pandiagonal magic squares of order 7 are also included in Excel file
Block-Wise Bordered and Pentagonal Magic Squares Multiples of 5
No full textDuring past years author worked with block-wise bordered magic squares of even orders. It includes blocks of orders 4, 6, 8, 10, etc. Most of the cases are with equal sums magic squares. This type of work is an extension of classical bordered magic squares. In case of multiples of 4, the extension is made for pentagonal magic squares (click here). For multiples of order 6 refer Taneja (click here). For the first time, we are presenting here bordered magic squares of odd number blocks. Recently, author worked on mutiples of 3, based on different sums magic squares of order 3 (click here). This work is for borders of magic squares of order 5. It is done with two types of magic squares of order 5. One type is pandiagonal magic squares, and another as bordered magic squares. This work is up to order 40. Higher orders examples can be seen in Excel file attached with the work. The total work is up to order 150. Pandiagonal magic squares based on equal sums pandiagonal magic squares of order 5 are also included in Excel file
Bordered and Pentagonal Magic Squares Multiples of 5
No full textDuring past years author worked with block-wise bordered magic squares of even orders. It includes blocks of orders 4, 6, 8, 10, etc. Most of the cases are with equal sums magic squares. This type of work is an extension of classical bordered magic squares. In case of multiples of 4, the extension is made for pentagonal magic squares (click here). For multiples of order 6 refer Taneja (click here). For the first time, we are presenting here bordered magic squares of odd number blocks. Recently, author worked on mutiples of 3, based on different sums magic squares of order 3 (click here). This work is for borders of magic squares of order 5. It is the revison over the previous work. It is done with three types of magic squares of order 5. One type is pandiagonal magic squares, the second type is bordered magic square. The third type is cornered magic square. This work is up to order 35. Higher orders examples can be seen in Excel file attached with the work. The total work is up to order 150. Pandiagonal magic squares based on equal sums pandiagonal magic squares of order 5 are also included in Excel file
Studies of water damage in polyester glass laminates
No full textResults are presented of an investigation into the combined effects of hot water and static uniaxial tensile stress on chopped strand mat reinforced polyester resins. Transport of water has been studied by measuring permeation rates, and the damage has been categorised by optical microscopy. Changes in flexural properties are reported. The resistance to crack propagation of polyester resins in the presence of water has also been studied.
Isophthalic-acid based polyester resin/chopped strand mat laminates were prepared by the “contact moulding process”. Rates of permeation of water at a series of temperatures (35-80C) were measured by a gravimetric method for up to 2000 hours. The flow was Fickian in most cases, but there were circumstances where the transport became non-Fickian. The non-Fickian behaviour was observed at higher temperatures on prolonged exposures. A specially designed apparatus was used to stress laminates uniaxially in tension and to measure water permeation rates through the stressed samples. The effect of introducing external stress ([not greater than] 25% of the ultimate tensile strength) was to increase the rate of permeation.
The progressive changes in the structures, as observed by microscopy took the form of (i) flat plate like circular disc cracks in the resins and resin rich areas of laminates, (ii) surface cracks in the resin casts and gel coats of laminates and (iv) partial failure of glass monofilaments by buckling. In most cases the damage was confined to regions very near the exposed surface. However, straining to 0.4% elongation led to the onset of debonding in transverse fibre bundles throughout the cross-section. Water damage was accelerated and modified by the presence of external stress.
The laminates retained their flexural strength and modulus well. Laminates stressed to 0.3% strain at 80C in water for nearly three months retained 80% of their original strength. No catastrophic failure was observed. Single edge notched polyester resin specimens were exposed to water at three different temperatures for up to three months. The resistance to crack propagation as measured by the critical stress intensity factor was lowered at all exposure temperatures. An examination of the fractured surfaces revealed that no stable crack growth had occurred
Emergence of tetracycline resistance in <i>Vibrio cholerae</i> O1 biotype El Tor serotype Ogawa from north India
No full textPart I - Ch 2 A constant need for change
No full textRivers, Ports, Waterways and Dredging Engineerin
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