Example-based automatic music-driven conventional dance motion synthesis

We introduce a novel method for synthesizing dance motions that follow the emotions and contents of a piece of music. Our method employs a learning-based approach to model the music to motion mapping relationship embodied in example dance motions along with those motions' accompanying background music. A key step in our method is to train a music to motion matching quality rating function through learning the music to motion mapping relationship exhibited in synchronized music and dance motion data, which were captured from professional human dance performance. To generate an optimal sequence of dance motion segments to match with a piece of music, we introduce a constraint-based dynamic programming procedure. This procedure considers both music to motion matching quality and visual smoothness of a resultant dance motion sequence. We also introduce a two-way evaluation strategy, coupled with a GPU-based implementation, through which we can execute the dynamic programming process in parallel, resulting in significant speedup. To evaluate the effectiveness of our method, we quantitatively compare the dance motions synthesized by our method with motion synthesis results by several peer methods using the motions captured from professional human dancers' performance as the gold standard. We also conducted several medium-scale user studies to explore how perceptually our dance motion synthesis method can outperform existing methods in synthesizing dance motions to match with a piece of music. These user studies produced very positive results on our music-driven dance motion synthesis experiments for several Asian dance genres, confirming the advantages of our method.     

The Synthesis of Covalent Triazine-Based Frameworks via Friedel–Crafts Reactions of Cyanuric Chloride with Thienyl and Carbazolyl Derivatives for Fluorescence Sensing to Picric Acid,Iodine and Capturing Iodine

A multifunctional thiophene-based covalent triazine framework (TTPATTh) with triphenylamine as core is synthesized by Friedel–Crafts reaction of cyanuric chloride with thienyl derivative for the first time. The yield of TTPATTh (99.59%) is far higher than that of the carbazole-based CTF (TTPATCz, 47.03%). TTPATTh and TTPATCz possess high BET surface areas with 1235 and 2501 m² g^–1 as well as high pore volumes with 1.60 and 2.23 cm³ g^–1, respectively. TTPATTh and TTPATCz have high thermal stability with high thermal decomposition temperatures of 514 and 598 °C in nitrogen atmosphere. With the introduction of triazine rings, the fluorescence sensing sensitivities of TTPATTh and TTPATCz to picric acid and iodine are improved significantly. Especially for TTPATTh, the K_sv values reach 5.95 × 10⁵ and 1.61 × 10⁴ L mol^–1, and LODs reach 1.02 × 10^–12 and 1.86 × 10^–12 mol L^–1. To the best of the knowledge, this is the most sensitive value among thiophene-based porous organic polymers to PA and I₂. Furthermore, TTPATTh and TTPATCz can also adsorb iodine in vapor phase, cyclohexane solution and aqueous solution, and release iodine by heating or in ethanol solution. The efficiency of controlling the release of iodine is higher than that in ethanol.     

Comments on “Exact and approximate feedback linearization without the linear controllability assumption [Automatica 48 (2012) 2221–2228]”

The conditions for state feedback linearization suggested in the aforementioned article are shown, by means of counterexamples, not to be sufficient. In view of this, modified results are proposed for ensuring the sufficiency.     

WSNs中可保护数据完整性和隐私的数据融合算法

提出一种可进行数据完整性和隐私保护的无线传感器网络安全数据融合算法IPPDA。通过在感知数据中附加一组同余数, 使汇聚节点能通过中国剩余定理进行数据完整性检测; 以时间和密钥为参数计算基于杂凑函数的消息验证码, 保证数据的新鲜性; 利用同态加密算法对数据进行隐私保护。仿真结果表明, IPPDA可以有效保护融合数据的隐私性、完整性和新鲜性, 能花费比iCPDA和iPDA算法更少的数据通信量和计算量, 得到更加精确的数据融合结果。     

无线网络工程优化方法研究

随着科技的进步,移动通信技术也得到迅速发展,人们对于通信质量的要求也越来越高。无线网络优化工程对于无线网络的建设起到非常重要的作用,它不仅能够解决无线网络中存在的问题,同时能够起到优化资源配置的作用。本文对网络优化工程技术的必要性以及优化内容进行分析,提出了网络优化中常见的问题以及解决措施,     

基于重复热点数据的CF广播结构改进算法*

针对现有广播结构构建中对数据访问概率倾斜度考虑不足的问题,在CF索引树的基础上提出了一种基于数据倾斜度的广播构建算法。该算法充分考虑热点数据的请求,根据数据在CF索引树中所处位置的不同,在一个广播周期内重复广播热点数据及其对应的索引节点,尽量减少移动用户的访问时间。最后通过实验验证了改进后广播结构的有效性。     

通信公司能耗管理系统和采集系统改造工程解析

能耗的持续增长是当前电信企业面临的重大问题,能耗监测体系和能耗管理系统的不健全,导致电信相关企业对能耗的实际情况不能全面的掌握,以至于节能改造项目的实施也存在诸多问题。根据要求,某通信集团公司将集中建设能耗管理平台,对电能进行集中管理。目前某省通信公司已有的能耗管理平台存在耗电量统计不准确,人性化设计较弱,采集信息显示不完整,无法提供全网能耗分析需求的信息等问题。本系统的改造建设以现有能耗管理平台为基础,通过网管中心虚拟化方式,构建全面的能耗管理平台,对电能实现集中管理,并为之后的节能减排项目提供技术支撑。本文所涉及的实践知识和技术资料可为之后相关领域的能耗管控相关工程提供参考和指导。     

Performance evaluation of anti-radiation based on the gamma degradation process

In the environment of space radiation, the high-energy charged particles or high-energy photons acting on a spacecraft can cause either temporary device degradation or permanent failure. The traditional probability model is difficult to obtain reliable estimation of unit radiation resistance performance with small samples. Considering that different products will change differently after high-energy particle radiation, we construct a model based on the gamma degradation process. This model can efficiently describe the law of unit radiation resistance variation with the total radiation dose levels under the effect of the total dose and displacement damage. Finally, the proposed model is used to assess the anti-radiation performance of the N-channel power MOSFET device STRH60N20FSY3 produced by STM to obtain average unit radiation resistance, survival probability, survival function, etc.     

Global Avalanche Characteristics of Boolean Functions by Concatenation

In order to measure the correlation propeties of two Boolean functions,the global avalanche characteristics of Boolean functions constructed by concatenation are discussed,i.e.,f_1‖f_2and f_1‖f_2‖f_3‖f_4.Firstly,for the function f = f_1‖f_2,the cross-correlation function of f_1,f_2 in the special condition are studied.In this case,f,f_1,f_2 must be in desired form.By computing their sum-of-squares indicators,the crosscorrelation function between f_1,f_2 is obtained.Secondly,for the function g = f_1‖f_2‖f_3‖f_4,by analyzing the relation among their auto-correlation functions,their sum-of-squares indicators are investigated.Based on them,the sum-of-squares indicators of functions obtained by Canteaut et al.are investigated.The results show that the correlation property of g is good when the correlation properties of Boolean functions f_1,f_2,f_3,f_4 are good.     

氧化鸡肉脂肪制备肉味香精前体物质的研究

研究以鸡肉脂肪为主要原料制备肉味香精的前体物质,通过单因素和正交试验确定氧化反应的最佳反应条件.结果表明氧化鸡肉脂肪的最佳条件是:氧化温度为120℃,氧化时间为3h,VE的添加量为1.0%,不添加水和NaCl.在最优条件下进行氧化试验,得到产物的酸值和过氧化值分别为1.472 mg/g和193.51 mmol/kg,感官评价值为4.905,具有典型特征的鸡肉香气.