The phrase "a sum of contributions" is correct and usable in written English.
It can be used when referring to the total amount resulting from multiple individual contributions, often in contexts like finance, fundraising, or collaborative projects.
Example: "The final budget for the project was determined by calculating a sum of contributions from all team members."
Alternatives: "total contributions" or "aggregate of contributions".
Once it's in the trust the money will be subject to a tax of up to 40%, but because it is a sum of contributions that themselves attracted and grew under a similar rate of tax relief, it will be tax-neutral.
The fusion reaction cross section is a sum of contributions from each channel.
As a result, the basic kinetic equation may be presented as a sum of contributions coming from RERs involving only terminal species, i.e., overall RERs.
The excess Gibbs energy of a polymer solution is expressed as a sum of contributions of a combinatorial and a residual excess Gibbs energy term.
The score is calculated as a sum of contributions of all fragments in the molecule divided by the number of fragments in this molecule.
The lava is divided into elemental magnetization prisms, and the theoretical magnetic field is given by a sum of contributions from all the prisms.
The load-carrying capacity of RC strengthened member is a sum of contribution of unconfined concrete core and steel angles as: P u = 0.85 f c b 2 + A a f yl (14 where f yl being the design yield stress of steel angles, and A a is the area of steel angles.
The basic model that we consider in this paper is additive, i.e. the cooperative regulatory contribution of different nodes is a sum of the contributions from each node.
The crucial insight from Eqs. 12 and 13 is that the 2D filtered output signal at pixel (y,x) is expressed as a sum of two contributions, (C^_{f,r,s} y,x)) and (C^_{f,-r,-s} y,x)), whiC^_{f,-r,-s} yhe C^_{f,-r,-s} yfrom all pixels before (y,x) and all pixels after (y,x) in the update sequence.
We consider the general cluster-based channel model [53] where the received signal at the BS from the uplink user k u is a sum of the contributions from M u scattering clusters and the received signal at user k u is a sum of the contributions from M u scattering clusters.
The EPP is built up as a sum of three contributions.
