用模糊数学综合评判建筑观感质量等级

观感质量的评定得分率,是组成单位工程质量“合格”、“优良”等级的内容之一。该文主要试论用模糊数学的方法分析处理观感质量综合评价当中存在的一些模糊问题,并针对观感质量及其检评特点,建立相应的评价模型与等级评判准则,用以进行等级判定。     

AUDITORY DISCRIMINATION BY THE CAT AFTER NEONATAL ABLATION OF TEMPORAL CORTEX

Some auditory discriminations cannot be acquired by the cat after large bilateral ablations of auditory cortex at maturity. However, if such ablations are sustained during infancy, these discriminations are readily learned. The function of the cortex in auditory discrimination depends on the age of the nervous system at the time of injury.     

市售鱼的感官检验

本文对市售鱼在保藏时的变化及感官检验作了介绍,并对其作出卫生评定。     

沱茶风味描述感官分析

对11个沱茶样品的17个风味感官性质用9点间隔量表进行描述分析。结果表明,48个评员能在14个感官性质上区别各样品。香气、滋味性质可各选取4个主分量。按香气可将样品分为品质好、差两类,其判别变量为粗气、日晒气;按滋味也可分为好、差两类,其判别变量为苦、涩、甜、平和、浓、水味。     

实虚部间关联的量子噪声和泵噪声对光强相对涨落的影响

采用具有实虚部关联的量子噪声和泵噪声驱动的单模激光白损失模型,用线性化近似方法计算了光强关联函数和光强的相对涨落,并用解析方法对线性化近似方法的适用范围进行了详细的分析,讨论了量子噪声强度、泵噪声强度、量子噪声实虚部间关联系数对光强相对涨落的影响,得出在小噪声、远离阈值时,线性化近似适用范围扩大;小噪声、远离阈值且当量子噪声实虚部无关联时,线性化近似方法适用范围最大的结论.     

干酪的感官特性与仪器测量特性的现状与进展

本文主要介绍了干酪质构评价的感官方法和仪器方法及其相应的参数。同时阐述了进行仪器测量参数与感官评价参数之间相关性研究的必要性,在此基础上,综述了这两方法参数之间相关性研究的现状与进展。     

上海地区油菜田杂草种群年际发生型判别分析

根据1992—2002年稻茬免耕油菜田禾本科和阔叶类杂草自然发生量的观测资料，禾本科类杂草划分为偏多发生年、正常发生年和偏少发生年3种年型，阔叶类杂草划分为偏多发生年和偏少发生年2种年型，并分别分析不同年型杂草种群发生规律和危害程度差异；同时，采用A—B型投票法对禾本科和阔叶类杂草发生年型作判别分析，上述结果对于制定防除杂草策略和提高防效、降低成本具有一定的参考价值。     

食品质地感官评定法

本研究参照国外质地侧描(texture profile)的方法,选用国内生产的食品。初步建立了一套适用于我国的、对食品质地的力学特性(硬度、脆性、咀嚼性、粘度、弹性、胶粘性)进行感官鉴定的评分标准,并对其中部分特性作了仪器测定。研究结果表明,感官评分与客观测定值之间有较好的相关关系。     

综合评分法选育杨树纸浆材优良无性系探讨

对２２个群体杨改良无性系的材性和生长性状进行综合评定，探讨了评定无性系的方法。把纤维长度、纤维长宽比、纤维壁腔比、木材基本密度及生长性状作为评定一个无性系优劣的依据，每一项指标给予相应的赋分值。分别采用六项指标评分法和三项指标评分法，综合评定每个无性第泊得分值，最后，选出了５个优良无性系。     

PREDICTION OF DISCRIMINATION FROM GENERALIZATION AFTER VARIATIONS IN SCHEDULE OF REINFORCEMENT

The relationship between generalization and discrimination is explored in the present study by utilizing the results of systematic changes in the generalization gradient to predict changes in discrimination behavior. In the first of two experiments, differing groups of pigeons were trained to respond to a wavelength of 550 mmicro under conditions of varying schedules of reinforcement. Generalization gradients were then obtained and the ratios of the responses to selected discriminative stimuli calculated. These were used to predict discrimination behavior in a second experiment using the same stimuli. Both the number of trials to a discrimination criterion and the ratio of response indicate the plausibilty of an inverse hypothesis, and the applicability of the generalization model to related behavior such as discrimination.     

大豆杂交后代田间目测鉴评选择效果的分析研究

本文用113个中熟组合的2140个F_6代系选株行的田间目测鉴评资料,从目测等级不同株系的实测产量、农艺性状差异及目测等级与性状相关性、目测等级与入选率关系的4个方面讨论了目测选择作为田间初选株系的效果和可行性,并以此讨论了田间目测鉴评选择在大豆杂交后代的高产育种中的应用。     

屏幕绘图在肉制品感官质量评价上的应用

本文所建立的模式可用于灌肠类产品的质量评价。应用模糊数学和计算机屏幕绘图技术处理数据,绘制不同表情的脸谱之形象化雷达折线分析图,表现评价的结果。     

SEPARATION OF TRANSDUCER AND IMPULSE-GENERATING PROCESSES IN SENSORY RECEPTORS

New evidence is presented that spike and transducer processes in sensory receptors are independent events; impulse activity in tile crustacean stretch receptor neuron and the mammalian pacinian corpuscle was selectively blocked by a compound (tetrodotoxin) without affecting any of the parameters of the generator potential.