Because each model in VRML is created in local coordinate system, inconvenient to handle them uniformly, this paper infers a universal formula to transform model coordinates from UCS to WCS.

针对各VRML造型在其局部坐标系中创建，采用变换矩阵实现了造型从局部坐标系下到世界坐标系下的坐标变换。

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One of the major reforms is expanding the Patient Centered Medical Home (PCMH) model, in which a single provider or practice coordinates patient care, including tracking referrals, maintaining electronic health records and communicating data to other providers.

FORBES: New York Medicaid Reforms Intended to Improve Health at Lower Cost