一类弓状核的脑细胞产生引发食欲的分子，另一类则产生抑制食欲的分子。
One type of brain cell in the arcuate produces chemicals that activate the appetite. Another type makes appetite-quashing molecules.
研究了具有参数优化的核函数法及其在聚类问题中的应用。
It studies kernel function method with parameters optimized and its application in pattern clustering.
针对模糊核聚类对红外图像分割存在的不足，提出了一种改进的模糊核聚类红外图像分割算法。
Due to the problems of infrared image segmentation using fuzzy kernel clustering, an improved method for infrared image segmentation was proposed.
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