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1.
针对标准鲸鱼算法(WOA)及部分衍生算法求解某些算例效果不佳的问题进行了研究与实验,证明了WOA"包围"过程存在零点搜索偏好陷阱;而混沌优化算法(COA)不均衡的搜索特性使得部分衍生WOA融合的混沌初始种群与群智能优化过程难以调和.为了改善上述缺陷,选用了两种混沌系统和气泡网捕猎策略,设计了一套融合式优化算法.算法采用基于适应度的基线式自适应振荡群粒划分策略指导群体行为模式,充分发挥混沌系统作用,平衡探索与收敛性能.对通用/改进算例和工程应用案例求解可知,该算法性能相较于对比组算法更优,且不存在搜索偏好. 相似文献
2.
年轻消费者黄酒饮用温度偏好研究 总被引:2,自引:0,他引:2
饮用温度会影响酒精饮料的感官特征,进而影响消费者的接受度和喜好性。采用选择合适项目法(Check-All-That-Apply, CATA)探究了不同饮用温度下半干型和半甜型绍兴黄酒的感官特征以及年轻消费者对饮用温度的偏好性。结果显示,半干型黄酒和半甜型黄酒共有17种感官属性和10种情绪属性受饮用温度的显著影响,且两种黄酒均在4℃时具有最高的消费者喜好度评分。Penalty分析表明,涩味和辛辣感是降低消费者喜好度的关键属性,甜味和鲜味可以提升消费者对半甜黄酒的喜好度。偏好性分析显示,80%以上的年轻消费者在饮用半干型和半甜型黄酒时偏好4、10和16℃的饮用温度,同时有40%~60%的年轻消费者偏好36℃及以上温度的半甜型黄酒,仅有20%以下的消费者对常温的两种黄酒以及热饮的半干型黄酒具有偏好性。总体而言,年轻消费者更偏好较低饮用温度的绍兴黄酒。通过探究饮用温度对年轻消费者黄酒饮用偏好的影响,为黄酒市场开拓和新产品开发提供了理论依据。 相似文献
3.
《Journal of dairy science》2022,105(1):154-169
The consumption of ice cream and frozen desserts in the “better-for-you” (BFY) category has grown rapidly over the past few years, even as traditional ice cream sales remain stagnant. To better understand consumer preferences within the BFY category, an online survey (n = 1,051) was conducted with ice cream and frozen dessert consumers, followed by consumer acceptance testing of commercial BFY frozen dairy desserts. Consumers of BFY frozen desserts (n = 578) completed an adaptive choice-based conjoint survey and MaxDiff exercise to identify the attributes that drive purchase of BFY frozen desserts. MaxDiff exercises were also used to determine which attributes all frozen dessert consumers (n = 1,051) perceived to make a frozen dessert BFY and which stabilizers or emulsifiers were most attractive on an ice cream or frozen dessert label. Subsequently, a consumer acceptance test (n = 186) was conducted using 4 commercial vanilla-flavored frozen dairy desserts made with different sweetening systems (sugar, sucralose + acesulfame K, monk fruit + allulose, and stevia + erythritol). Half of consumers were primed or informed with the sweeteners and basic nutritional information for the frozen desserts before tasting, and the other half of consumers evaluated samples blinded, where they were only informed that they were tasting a vanilla-flavored frozen dessert. Sweetener type and base (dairy vs. plant) were the most important attributes to BFY consumers when selecting a BFY frozen dessert (n = 578). For all ice cream and BFY dessert consumers (n = 1,051), sweetener-related claims (naturally sweetened, reduced sugar, no added sugar), along with “all natural” and a short ingredient list, were the top attributes that contributed to perception of a “healthier” frozen dessert. When BFY frozen desserts were tasted by consumers, purchase intent decreased after tasting, suggesting that frozen desserts made with natural non-nutritive sweeteners did not meet consumer expectations. Flavor of BFY frozen desserts remains more important than perceived healthiness. Consumers perceive frozen desserts, even those in the BFY category, as an indulgence. Frozen dessert manufacturers should focus on naturally sweetened, dairy-based desserts with minimal sweetener-related flavor defects when designing products for the BFY category. 相似文献
4.
目的 探究消费者对共享单车的需求偏好,获取用户和设计师对产品的认知差距,并提出相应的设计决策,为共享单车以及两轮车行业的产品创新提供启迪与参考。方法 从设计师思维与消费者偏好的视角出发,对共享单车消费者偏好的各项设计原则(属性)进行细致分类,建立8个评价维度与41个评价特征,采用KANO模型对有效回收样本进行定量统计及定性分析。结果 基于前期调研与KANO模型分析,提出后共享时代单车设计的相关策略。结论 在后共享单车时代下,设计师需要根据用户真实的产品偏好与体验感知进行设计策略的研究,以设计出真正满足用户需求和体验期望的产品。同时也证明KANO模型作为一种阐明用户不同感性需求的方法,有助于设计师进行设计决策的综合判断,提升设计的竞争力。 相似文献
5.
Biologically inspired design (BID) is one of the common methods for product design. To solve the problem of inaccurate acquisition of inspirational creatures due to the lack of user perception preference analysis, a data-driven intelligent service model for BID considering user perception needs is proposed based on Kansei engineering. Firstly, by extracting the perceptual features of creatures from the semantic source elements of products through mapping and encodes them, we proposed a data acquisition method based on intuitionistic fuzzy sets considering different customer preference distributions, bridging the gap caused by the asymmetry between designers and users. Secondly, the functional relationship between biometric features and user-perceived attributes is identified and predicted, and a predictive model of biodata considering user preferences is obtained by multiple linear regression analysis. Finally, based on the data clustering and reorganization theory to understand the organization and dynamics of the database, the construction of a BID library was completed, and the design resources in the library were used as analyzed knowledge for designers to plan design activities. Taking the bionic design of a UAV product as an example, a prototype of a computer-aided design service system was developed based on the theory proposed in the article, and the analyzed knowledge was used to improve the efficiency and science of the design, effectively verifying the usefulness of this study for design. To a certain extent, this study addresses the problem of cognitive limitations of designers and cognitive differences between designers and users, promotes the application of bioinspiration in product design, and improves the marketability of design solutions. 相似文献
6.
基于熵理论-可拓云模型的引水隧洞塌方风险评价 总被引:1,自引:0,他引:1
为有效预防引水隧洞施工期塌方事故的发生,结合既有研究成果及工程实际情况,构建多指标参数的引水隧洞塌方风险评价指标体系,运用偏好比率法和反熵权法对各指标因素进行权重分析;同时考虑引水隧洞施工中塌方风险因素的不确定性以及评价等级划分的模糊性,建立了基于熵理论-可拓云模型的引水隧洞塌方风险评价模型。以珠江三角洲水资源配置工程中东莞分干线单线引水隧洞的9段典型隧洞为研究对象进行评价,结果表明:GS19+590—GS20+050、GS20+050—GS21+340、GS22+226—GS22+553、GS24+911—GS26+035段引水隧洞塌方风险等级为Ⅱ级,属于中度风险;GS21+340—GS22+226、GS22+553—GS23+788、GS23+788—GS24+911、GS26+035—GS27+700、GS27+700—GS28+061段引水隧洞塌方风险等级为Ⅲ级,属于高度风险。评价结果与工程实际情况吻合,验证了该方法在隧洞塌方风险评价中的实用性与有效性。 相似文献
8.
目的 随着潮玩市场的不断发展,盲盒玩偶受到了大量年轻消费者的青睐。通过研究盲盒玩偶外观与消费者偏好之间的关系,可以了解现代年轻群体的审美偏好,从而辅助设计师创造出更多满足消费者偏好的产品。方法 基于魅力工学等研究方法展开定性与定量研究。以POP MART盲盒玩偶为研究对象,首先进行深度访谈,根据访谈内容绘制盲盒玩偶外观评价构造图,得到消费者对偏好的盲盒玩偶外观的原始评价、抽象感受和关注的具体要素;再结合抽象语义设计Likert问卷,并进行问卷调研,以此获得盲盒玩偶的魅力评价均值;最后运用数量化I类理论进行多元回归分析,建立多个要素与消费者审美偏好之间的线性关系。结果 利用SPSS26.0统计软件进行定量研究,得到“治愈温馨”“纯洁可爱”“潮酷个性”“有趣搞怪”四类语义分别与消费者吸引力的线性关系,以及具有显著影响的外观设计要素。结论 研究获得了消费者对不同语义盲盒玩偶外观的审美偏好与关注要素,以及不同职业、不同年龄段消费者对盲盒玩偶外观审美偏好程度的差异。研究结果对潮玩设计师的创作具有参考性意义,也可将研究结果拓展应用于小型艺术装饰品/创意玩具等类似产品中。 相似文献
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10.
In recent years, electricity demand response (DR) has attracted attention as the most cost-effective way to balance the electricity grid. This study analyzes the preferences of South Korean energy consumers on residential DR and calculated the potential capacity of peak reduction in summer. The estimation demonstrates that consumers have heterogeneous preferences for automated residential DR programs and highly value reducing their monthly electricity bills. A scenario analysis shows that approximately 60.0% of metropolitan consumers in South Korea would participate in a residential DR program, and the corresponding reduction in the peak load is forecasted to be approximately 1.74 GW. 相似文献