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关键词： 酵母培养物   黑山羊   生长性能   养分表观消化率   肉品质  

摘要： 试验旨在研究日粮中添加酵母培养物对黑山羊生长性能、养分表观消化率及肉品质的影响。选择108只85日龄的黑山羊,随机分为4组,每组3个重复,每个重复9只羊,对照组、试验1组、试验2组、试验3组分别在基础日粮中添加0、5、10、20 g/kg酵母培养物。预试期10 d,正式试验期30 d。结果显示:试验2组和试验3组黑山羊的末重及平均日增重显著高于对照组(P<0.05),料重比显著低于对照组(P<0.05)。与对照组相比,试验组黑山羊对日粮中中性洗涤纤维的表观消化率均显著提高(P<0.05),试验2组和试验3组黑山羊对日粮中干物质、粗蛋白表观消化率显著提高(P<0.05),肌肉剪切力和滴水损失率显著降低(P<0.05)。研究表明,在日粮中添加酵母培养物可以提高黑山羊的生长性能和养分表观消化率,改善肉品质,且以10 g/kg添加量为宜。

关键词： 计算机   系统集成   信息保护  

摘要： 阐述现代计算机科学技术的应用,包括安全信息保护系统、标准化的计算机操作维护、计算机体系集成,探讨计算机技术的优化策略。

关键词： 问题导学   互动建构   教学模式  

摘要： 遵循以人为本、以生为本、以学为本的原则,以计算机科学与编程导论课程为例,将课堂教学的重心从教师的“教”转向学生的“学”。课堂教学实施过程中,从单个教师传授知识逐渐转变为教师团队共同引导学生自主探究知识;变革传统教学结构,以教师为中心转变为以教师为主导、以学生为中心和主体,将线上教学资源、课堂教学、师生互动等有机结合起来;构建UMU网络互动平台,学生相互交流、批判质疑、辨析问题,通过对个性化问题的解答实现因材施教,激发学生对所学专业和学科的好奇心,引导其独立思考、自由探索、勇于创新。在该教学模式下,学生表现出浓厚的学习兴趣,积极参与课堂互动,主动分析并解决各种问题,自身能力得以提升。

关键词： 香港特别行政区   就职典礼   香港回归祖国   国际友人   香港居民   行政长官   海内外同胞   一国两制  

摘要： Fellow Compatriots,Dear Fniends,Today we are gathered here to celebrate this grand occasion marking the 25th anniversary of Hong Kong's return to the motherland,and to hold the inaugural ceremony of the sixth-term govemment of the Hong Kong Special Administrative Region(HKSAR).

关键词： Digital technology   Interaction design   Interactive products   Life-centred design   More-than-human   Responsible innovation  

摘要： Over the past decades, the field of interaction design has shaped how people interact with digital technology, both through research and practice. Interaction designers adopted human-centred design to ensure that the interactive products they design meet the needs and desires of end consumers. However, there is surmounting evidence that placing the end consumer at the centre of the design process creates unintended consequences, damaging global systems that are essential to human well-being. This article reviews emerging paradigms that provide a more holistic perspective, such as value-sensitive design, more-than-human participation and life-centred design. Based on this review, the article introduces a practical framework for life-centred design consisting of principles, actionable methods and a model for responsible innovation. The article discusses how interaction designers can use the framework to balance human-centred considerations with environmental and ethical concerns when designing interactive products.

关键词： 计算机科学与技术   信息化建设现代化   运用  

摘要： 随着经济社会的发展和科技的进步,计算机科学与技术的现代化运用已经成为时代的潮流和主要发展趋势之一,计算机科学与技术的发展及科学应用对当前人们的生活方式以及生产方式产生了深刻影响,诸多行业和领域都在积极加强信息化建设,以增强自身的核心竞争力。然而,计算机科学与技术的现代化应用在为经济社会发展提供便利的同时,也存在一些问题和难题,需要对此进行持续完善和改进。文章主要分析了计算机科学与技术的现代化应用现状、问题以及发展对策,希望对推进计算机科学与技术的高效化运用,促进经济社会持续健康发展有所启示。

关键词： EEG   biometric key generation   end-edgecloud system   information security  

摘要： Biometric key is generated from the user’s unique biometric features,and can effectively solve the security problems in ***,the current prevailing biometric key generation techniques such as fingerprint recognition and facial recognition are poor in randomness and can be forged *** to the characteristics of Electroencephalographic(EEG)signals such as the randomness,nonlinear and non-stationary etc.,it can significantly avoid these *** paper proposes a novel method to generate keys based on EEG signals with end-edgecloud collaboration *** sensors to measure motor imagery EEG data,the key is generated via pre-processing,feature extraction and *** show the total time consumption of the key generation process is about *** scheme is practical and feasible,which provides a research route to generate biometric keys using EEG data.

关键词： Throughput   Loading   Partitioning algorithms   Graphene   Computer science   Social networking (online)   Runtime   Iterative graph processing   out-of-core   concurrent jobs   storage system  

摘要： With the huge demand for graph analytics in many real-world applications, massive iterative graph processing jobs are concurrently performed on the same graphs and suffer from significant high data access cost. To lower the data access cost toward high performance, several out-of-core concurrent graph processing solutions are recently designed to handle concurrent jobs by enabling these jobs to share the accesses of the same graph data. However, the set of active vertices in each partition are usually different for various concurrent jobs and also evolve with time, where some high-degree ones (or called hub-vertices) of these active vertices require more iterations to converge due to the power-law property of real-world graphs. In consequence, existing solutions still suffer from much unnecessary I/O traffic, because they have to entirely load each partition into the memory for concurrent jobs even if most vertices in this partition are inactive and may be shared by a few jobs. In this paper, we propose an efficient structure-aware storage system, called GraphSO, for higher throughput of the execution of concurrent graph processing jobs. It can be integrated into existing out-of-core graph processing systems to promote the execution efficiency of concurrent jobs with lower I/O overhead. The key design of GraphSO is a fine-grained storage management scheme. Specifically, it logically divides the partitions of existing graph processing systems into a series of small same-sized chunks. At runtime, these small chunks with active vertices are judiciously loaded by GraphSO to construct new logical partitions (i.e., each logical partition is a subset of active chunks) for existing graph processing systems to handle, where the most-frequently-used chunks are preferentially loaded to construct the logical partitions and the other ones are delayed to wait to be required by more jobs. In this way, it can effectively spare the cost of loading the graph data associated with the

关键词： Optical microsystems   Biomimetics   Electrical engineering   Biomedical engineering   Biomedical optics   Computer science   Electronics engineering   Materials science   Photonics   Two photon polymerization  

摘要： Guest editors Young Min Song, Cunjiang Yu, and Gil Ju Lee introduce the Special Section on Biomimetic Optical Microsystems.

关键词： 新工科复合型人才   计算机科学与技术   人才培养模式  

摘要： 该文以应用型大学的计算机科学与技术专业为研究对象,以重庆移通学院的人才培养定位为基础,对复合型人才培养模式进行探讨和实践。通过以“新兴技术型人才”培养为导向,研究出一条可行的复合型人才培养之路,并对计算机科学与技术专业人才培养中出现的新问题进行了分析、研究和解决,为应用型大学的新工科建设提供参考。