In Nolvus Awakening, the armor resistance is handled by the mod True Armor

True Armor features the following

• Armors finally feel and play differently - Every armor type gets individual and weapon or magic specific protections. Further worn armor will noticeably impact your speed and regeneration.
• Fair - Almost all of True Armors effects work on both, the player and those in combat with him or her equally. Light armors make up for their lack of protections with substantially higher speed and regeneration values.
• Armors influence speed and regeneration - What's your style? Be it the unyielding bulwark, the magic glasscannon, or the nimble assassin, True Armor let's you play as either.
• Creature protections - True Armor now lets you assign its armor protections to creatures aswell for a better allround experience.
• Passive Block mechanic - Let your shield work for you, even when you are not actively blocking.
• Sound Effect Overlay - When your sword glances off their breastplate and your mace crushes their skull beneath, you will be able to tell, just by listening.
• Dynamic Health Limiter - No more unrealistic and immersion breaking damage sponge enemies. Bring their health down to sensible levels as you pass by.

Novus Awakening comes with a tailored preset but you can customize the armors resistances in the True Armor MCM menu

This video features the basic explainations done by the author himself.