为提高贻贝蒸煮液的经济价值和贻贝的综合利用率,减少环境污染,同时开发新型酱油品种,将贻贝蒸煮液添加至低盐稀态发酵酱油曲料中进行发酵,制备贻贝酱油,试验设置3组测试组(贻贝蒸煮液添加量分别为5%,10%和15%)和对照组(不添加)。结果表...为提高贻贝蒸煮液的经济价值和贻贝的综合利用率,减少环境污染,同时开发新型酱油品种,将贻贝蒸煮液添加至低盐稀态发酵酱油曲料中进行发酵,制备贻贝酱油,试验设置3组测试组(贻贝蒸煮液添加量分别为5%,10%和15%)和对照组(不添加)。结果表明,贻贝酱油(10%添加量)的可溶性无盐固形物含量16.83 g/100 m L,全氮含量1.55 g/100 m L,均达到国标特级酱油标准,氨基酸态氮含量0.75 g/100 m L,达到国标一级酱油标准;贻贝酱油中鲜味氨基酸占比较高,同时必需氨基酸含量以及醇类、酯类、酚类等风味物质的含量高于某特级酱油。试验制备的贻贝酱油风味独特营养价值高,有望为贻贝蒸煮液的综合利用提供新途径,提高经济效益同时降低污染。展开更多
Multi-level pressure source system is a novel hydraulic system with distinct advantage of energy saving. In order to balance each pressure level of the multi-level pressure source system, a pump motor energy transfer ...Multi-level pressure source system is a novel hydraulic system with distinct advantage of energy saving. In order to balance each pressure level of the multi-level pressure source system, a pump motor energy transfer unit is usually equipped. However, the pump motor energy transfer has the characteristics of poor starting and low response, which cause long time of pressure adjustment and large pressure jitter when the transformer is switched to system suddenly and the motor-side pressure has pressure impact when rail of the pump-side is switched. To address these problems, this paper proposes a compound control strategy of feedforward compensation control with Fuzzy-PID to improve the controllability of the multi-level pressure source system. A test rig of the pump motor energy transfer unit is built and the controllability of compound controller and PID controller are compared. The experiment results show that, compared with the traditional PID, the adjustment time and the pressure impact are reduced by 20% and 25% with the proposed compound control strategy. Therefore, the presented compound control strategy can be used to improve starting performance and robustness of the pump motor energy transfer unit control system.展开更多
文摘为提高贻贝蒸煮液的经济价值和贻贝的综合利用率,减少环境污染,同时开发新型酱油品种,将贻贝蒸煮液添加至低盐稀态发酵酱油曲料中进行发酵,制备贻贝酱油,试验设置3组测试组(贻贝蒸煮液添加量分别为5%,10%和15%)和对照组(不添加)。结果表明,贻贝酱油(10%添加量)的可溶性无盐固形物含量16.83 g/100 m L,全氮含量1.55 g/100 m L,均达到国标特级酱油标准,氨基酸态氮含量0.75 g/100 m L,达到国标一级酱油标准;贻贝酱油中鲜味氨基酸占比较高,同时必需氨基酸含量以及醇类、酯类、酚类等风味物质的含量高于某特级酱油。试验制备的贻贝酱油风味独特营养价值高,有望为贻贝蒸煮液的综合利用提供新途径,提高经济效益同时降低污染。
基金Supported by the National Natural Science Foundation of China(No.51575471)the Key Project of Science and Technology Plan of Higher Education of Hebei Education Department(No.ZD2017077)
文摘Multi-level pressure source system is a novel hydraulic system with distinct advantage of energy saving. In order to balance each pressure level of the multi-level pressure source system, a pump motor energy transfer unit is usually equipped. However, the pump motor energy transfer has the characteristics of poor starting and low response, which cause long time of pressure adjustment and large pressure jitter when the transformer is switched to system suddenly and the motor-side pressure has pressure impact when rail of the pump-side is switched. To address these problems, this paper proposes a compound control strategy of feedforward compensation control with Fuzzy-PID to improve the controllability of the multi-level pressure source system. A test rig of the pump motor energy transfer unit is built and the controllability of compound controller and PID controller are compared. The experiment results show that, compared with the traditional PID, the adjustment time and the pressure impact are reduced by 20% and 25% with the proposed compound control strategy. Therefore, the presented compound control strategy can be used to improve starting performance and robustness of the pump motor energy transfer unit control system.
