The performances with unequal QoS constraints are presented in Figure 5, where the QoS vector is chosen as ρ = ρ[1, 1.5, 2, 2.5, 3, 3] T. One may notice that all curves are about 2 dB higher than those in Figure 4. Figure 5 Performance with unequal QoS constraint 3 ρ 1 = 2 ρ 2 = 3 2 ρ 3 = 6 5 ρ 4 = ρ 5 = ρ 6.
Even when universal coverage has been achieved, universal access remains a challenge for many reasons including resource constraints, unequal distribution of existing health resources and organisational and managerial bottle-necks.
Highly unequal countries see additional constraints to growth compared with more equal ones.
Additionally, the proposed approach is further extended to three unequal area thermal systems with physical constraints such as time delay, reheat turbine, Generation Rate Constraint (GRC) and GDB nonlinearity.
To consider some constraints such as unequal-sized machines, adding and removing machines in different periods, closeness ratio, aisles, routing flexibility, and budget constraint for total cost.
The barriers to mutual learning seem to relate to the customers' demands for price reductions, the customers' lack of interest in co-operating, unequal relations between customer and supplier, and constraints regarding co-operation with the customers' competitors.
For supply side constraints, insufficient healthcare providers and unequal distribution of health professionals have remained significant problems in the ASEAN countries (Table 4).
Some of the identified gaps in implementation include resource constraints; migration of professionals; the unequal distribution of personnel in public and private sectors; low skills levels; poor staff motivation and the lack of managerial capacity [ 10, 12- 14].
