Genes encoding enzymes involved in the lignin biosynthesis through phenylpropanoid pathway were not only associated with the lignin content, but also related to
目的观察分析模拟舰载起落航线飞行各阶段飞行员的脑力负荷,以提高飞行绩效、维护飞行安全方法采用改良的美国国家航空航天局任务负荷指数(National Aeronautics and Space Administration task load index, NASA-TLX)评价量表,在飞行模拟器上对10名歼击机飞行员进行起落航线课目飞行的脑力负荷主观评估,分析不同飞行阶段飞行员的脑力负荷。结果在模
Increased food demand from the rapidly growing human population has caused intensive land transition from desert to farmland in arid regions of northwest China.
Cotton growth and development is influenced by various uncontrollable environmental conditions. Temperature variations in the field can be created by planting a
Organophosphate insecticide residues on vegetable, fruit, tea and even grains are primary cause of food poisoning. Organophosphate compounds can cause irreversi