"risk of unavailability" is correct and can be used in written English.
You can use it when referring to a risk of something becoming unavailable, such as a resource or service. For example, "We have to consider the risk of unavailability of raw materials when formulating our budget."
These results reinforce the notion that managing the risk of network unavailability requires a combination of redundant topology, increased flow carrying capacity, and other non-conventional consequence reduction strategies, such as layout homogenization and the deliberate inclusion of weak links for network islanding.
The authors say these commonsense ideas haven't been adopted by epidemiologists for a variety of reasons, such as lack of awareness about their importance to risk assessors, unavailability of the information in the base data, or lack of space due to journal restrictions (although some journals now publish supplemental data at no additional cost).
‡Equal to CHADS2 revised because of unavailability of risk factors (left ventricular function, mitral stenosis, and prosthetic heart valve) in BAFTA data.
The global financial crisis and turmoil in many parts of the Middle East and Northern Africa forced China to diversify energy sources to reduce the risk of oil shortage or unavailability.
The main contribution is that the obtained solution protects a multi-reservoir system against risk of water and storage unavailability due to the uncertainty in real-time use of regulation-up and down reserves, respectively, and that the reserves deem the net head dependency.
Meanwhile, over 2.5 million children are at risk of diarrhea due to the unavailability of safe water, poor sanitary conditions and lack of access to Oral Rehydration Salt (ORS) -- compared to 1.5 million prior to the conflict.
A previous study conducted in an urban poor setting in Indonesia also reported an increased risk of having diarrhea in children with unavailability of sewage and/or a place to dispose the child's stools [ 62].
Unavailability related to higher risk of victimisation.
Creme's demurral, whether born of unavailability or evasiveness, set off another cycle of speculation.
In any case of unavailability, the performance will go ahead as scheduled with a suitable cover in the role".
