1. Te ōwehenga o te rahi matūriki mōrahi o te rauemi i mua i te kuru ki te rahi matūriki mōrahi o te hua i muri i te kuru

i=Dmax/dmax (Dmax—-Te rahi matūriki mōrahi o te rauemi i mua i te kuru, dmax—-te rahi matūriki mōrahi o te hua i muri i te kuru)

2. Te ōwehenga o te whānui whai hua o te tauranga whāngai o te kuru ki te whānui o te whakatuwheratanga tukunga

i=0.85B/b (B—–Te whānui o te putanga whāngai kuru, b—–Te whānui o te whakatuwheratanga tukunga kuru, 0.85—-Me whakarite kia ngau te kuru i te whānui whai hua o te rauemi.)

Ko te uara o te whānui o te whakatuwheratanga tukunga: ko te mīhini tukunga matotoru e tango ana i te whānui mōrahi o te whakatuwheratanga tukunga; ko te mīhini kuru waenga e tango ana i te whānui mōrahi o te whakatuwheratanga tukunga.

3. i=Dcp/dcp

(Dcp—te whānui toharite o te rauemi i mua i te kuru; dcp—te whānui toharite o te rauemi i muri i te kuru)

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