Factors of SME&E structural vulnerability in New Zealand

Soil Research ◽  
1997 ◽  
Vol 35 (3) ◽  
pp. 461 ◽  
Author(s):  
A. E. Hewitt ◽  
T. G. Shepherd

Some New Zealand soils withstand intensive cultivation and support continuing high production and yet maintain essential soil physical qualities of infiltration, aggregation, and aeration. In other soils, essential soil qualities deteriorate rapidly under the impact of even moderately intensive management practices. Our objective was to estimate the inherent susceptibility of New Zealand soils to physical degradation by focusing on structural vulnerability. We took a deductive approach by reviewing the available information on the structural stability and physical degradation of New Zealand soils. We identified 4 soil attributes that are well represented in the national soils database and are most likely to control structural vulnerability: (i) stabilising short-range-order oxy-hydroxides of aluminium and iron as estimated by phosphate retention, (ii) total organic carbon content, (iii) clay content, and (iv) wetness. The 4 attributes were standardised and transformed and a simple structural vulnerability index (SV) was devised. We determined SV for all mineral soils in the national soils database. The results provide a ranking of soil groups according to their structural vulnerability. We concluded that the index may be used as a first approximation rating of the structural vulnerability of New Zealand soils to aid resource management.


2010 ◽  
Vol 14 (4) ◽  
pp. 408-420 ◽  
Author(s):  
Mohammad Reza Zare ◽  
Suzanne Wilkinson ◽  
Regan Potangaroa

Earthquakes are the most common natural hazard in New Zealand which can affect lifelines in populated areas. This research takes into account earthquake effects on treatment plants and pumping stations in wastewater systems as a lifeline. Wastewater treatment plants in four earthquake prone areas in New Zealand were selected for the purpose of assessing their vulnerabilities to earthquakes. Results showed that simple upgraded wastewater treatment plants are the most vulnerable type of wastewater treatment plants in New Zealand. Earthquake vulnerability of 45 wastewater pumping stations in 3 earthquake prone cities in New Zealand was also assessed. The assessment proved that non‐structural components are among the most vulnerable parts in wastewater pumping stations. Since structural vulnerability of some wastewater pumping stations is notable, it requires a need for an immediate rehabilitation plan. Santruka Naujojoje Zelandijoje žemes drebejimai yra labiausiai tiketina stichine nelaime, apgyvendintose teritorijose galinti paveikti gyvybiškai svarbius tinklus. Šiame tyrime nagrinejamas žemes drebejimu poveikis nuoteku tinkluose veikiančioms valymo ir pumpavimo stotims, kurios yra gyvybiškai svarbios. Siekiant ivertinti, kaip žemes drebejimai gali pažeisti nuoteku valymo stotis, buvo pasirinktos valymo stotys iš keturiu seismiškai aktyviu Naujosios Zelandijos zonu. Rezultatai parode, kad Naujojoje Zelandijoje labiausiai pažeidžiamos paprastos atnaujintos nuoteku valymo stotys. Ivertintas ir trijuose seismiškai aktyviuose Naujosios Zelandijos miestuose esančiu 45 nuoteku pumpavimo stočiu pažeidžiamumas per žemes drebejimus. Ivertinus nustatyta, kad nuoteku pumpavimo stotyse labiausiai pažeidžiami yra nestruktūriniai elementai. Kadangi kai kuriose nuoteku pumpavimo stotyse struktūru pažeidžiamumas yra didelis, reikia nedelsiant sudaryti rekonstrukcijos plana.


1999 ◽  
Vol 190 ◽  
pp. 563-566
Author(s):  
J. D. Pritchard ◽  
W. Tobin ◽  
J. V. Clausen ◽  
E. F. Guinan ◽  
E. L. Fitzpatrick ◽  
...  

Our collaboration involves groups in Denmark, the U.S.A. Spain and of course New Zealand. Combining ground-based and satellite (IUEandHST) observations we aim to determine accurate and precise stellar fundamental parameters for the components of Magellanic Cloud Eclipsing Binaries as well as the distances to these systems and hence the parent galaxies themselves. This poster presents our latest progress.


Author(s):  
Ronald S. Weinstein ◽  
N. Scott McNutt

The Type I simple cold block device was described by Bullivant and Ames in 1966 and represented the product of the first successful effort to simplify the equipment required to do sophisticated freeze-cleave techniques. Bullivant, Weinstein and Someda described the Type II device which is a modification of the Type I device and was developed as a collaborative effort at the Massachusetts General Hospital and the University of Auckland, New Zealand. The modifications reduced specimen contamination and provided controlled specimen warming for heat-etching of fracture faces. We have now tested the Mass. General Hospital version of the Type II device (called the “Type II-MGH device”) on a wide variety of biological specimens and have established temperature and pressure curves for routine heat-etching with the device.


Author(s):  
Sidney D. Kobernick ◽  
Edna A. Elfont ◽  
Neddra L. Brooks

This cytochemical study was designed to investigate early metabolic changes in the aortic wall that might lead to or accompany development of atherosclerotic plaques in rabbits. The hypothesis that the primary cellular alteration leading to plaque formation might be due to changes in either carbohydrate or lipid metabolism led to histochemical studies that showed elevation of G-6-Pase in atherosclerotic plaques of rabbit aorta. This observation initiated the present investigation to determine how early in plaque formation and in which cells this change could be observed.Male New Zealand white rabbits of approximately 2000 kg consumed normal diets or diets containing 0.25 or 1.0 gm of cholesterol per day for 10, 50 and 90 days. Aortas were injected jin situ with glutaraldehyde fixative and dissected out. The plaques were identified, isolated, minced and fixed for not more than 10 minutes. Incubation and postfixation proceeded as described by Leskes and co-workers.


1998 ◽  
Vol 36 (5) ◽  
pp. 255-262
Author(s):  
SIMPANYA ◽  
JARVIS ◽  
BAXTER

Sign in / Sign up

Export Citation Format

Share Document