mixed

摘要： With the rise of the concept of the metaverse,mixed reality continues to receive keen attention from all over the world.Academia and industry worldwide are constantly innovating the key technologies of mixed reality software and hardware.For a long time,the field of mixed reality mainly focused on display technology,but with the increase of mixed reality applications,people gradually found that the lack of interactive technology and solutions has become a bottleneck restricting the development of mixed reality technology.On the mixed reality platform represented by AR/VR helmets,people cannot completely get rid of the remote control to complete human-computer interaction,which greatly limits the development of applications on it.How to enable users to exchange information with computers based on the natural interaction modality has become an urgent problem to be solved.

摘要： It is a common fact that data(features,characteristics or variables)are collected at different sampling frequencies in some fields such as economic and industry.The existing methods usually either ignore the difference from the different sampling frequencies or hardly take notice of the inherent temporal characteristics in mixed frequency data.The authors propose an innovative dual attention-based neural network for mixed frequency data(MID-DualAtt),in order to utilize the inherent temporal characteristics and select the input characteristics reasonably without losing information.According to the authors’knowledge,this is the first study to use the attention mechanism to process mixed fre-quency data.The MID-DualAtt model uses the frequency alignment method to trans-form the high--frequency variables into observation vectors at low frequency,and more critical input characteristics are selected for the current prediction index by attention mechanism.The temporal characteristics are explored by the encoder-decoder with attention based on long-short-term memory networks(LSTM).The proposed MID-DualAtt has been tested in practical application,and the experimental results show that it has better prediction ability than the compared models.

摘要： Civil construction has high demand for new procedures and technologies capable of generating better results in numerous situations throughout the process.Nowadays,cavities in urban areas are commonly used due to the implantation of commercial and residential developments with more than two floors,seeking a better use of the nobler areas of the big cities.In geotechnical terms,the filling of these cavities,with the local soil,especially in the Federal District,lateritic soils,can represent additional efforts for the structures and foundations and lead to a compromise of the technical and functional performance of the same,compromising the efficiency and the economy of the enterprise.In this sense,this research evaluates the mechanical behavior of the mixtures,using GEO5 Software,Containment Design and Verification Modules,presenting an alternative to fill cavities in urban regions,with a mixture of material with lower specific density in relation to the soil Natural.Proctor Normal compression tests,simple direct shear saturation and sample expansibility were performed.The results showed a reduction of 38%in the strength of the reinforced concrete curtain,as well as a 25%reduction in maximum bending moments and 31%in maximum shear forces,and a reduction of about 32%in the displacements of the structure to the soil with addition of expanded vermiculite for tests obtained in the saturated condition.For the compositions of cement soil,expanded vermiculite soil and soil cement and expanded vermiculite,the deformations were of the order of 0.3%,0.4%and 0.2%,respectively.

摘要： In this paper, we consider an extragradient thresholding algorithm for finding the sparse solution of mixed complementarity problems (MCPs). We establish a relaxation l1 regularized projection minimization model for the original problem and design an extragradient thresholding algorithm (ETA) to solve the regularized model. Furthermore, we prove that any cluster point of the sequence generated by ETA is a solution of MCP. Finally, numerical experiments show that the ETA algorithm can effectively solve the l1 regularized projection minimization model and obtain the sparse solution of the mixed complementarity problem.

摘要： Previous quasi-static cyclic tests of shear walls,which routinely used an incremental lateral displacement test protocol with a constant axial load,failed to reflect the character of moment-shear force interaction of prototype buildings.To study the effect of the moment-shear force interaction on the seismic performance of shear walls,three identical 2-story shear wall specimens with different loading patterns were constructed at 1/2 scale,to represent the lower portion of an 11-story high-rise building,and were tested under reversed cyclic loads.The axial force,shear force and bending moment were simultaneously applied to simulate the effects of gravity loads and earthquake excitations on the prototype.The axial force and bending moment delivered from the upper structure were applied to the top of the specimens by two vertical actuators,and the shear force was applied to the specimens by two horizontal actuators.A mixed force-displacement control test program was adopted to ensure that the bending moment and the lateral shear were increased proportionally.The experimental results show that the moment-shear force interaction had a significant effect on the failure pattern,hysteretic characteristics,ductility and energy dissipation of the specimens.It is recommended that moment-shear force interaction should be considered in the loading condition of RC shear wall substructures cyclic tests.

摘要： High performance analog and mixed signal circuits are strongly demanded in todays’system on chip systems.They found pervasive applications in A/D or D/A conversion,power management,radio frequency(RF)signal sensing and processing,clock generation,etc.In this special issue,we collected 7 comprehensive reviews and 2 research articles from leading research groups,which presented state-of-art design techniques and insight forecast of development trend in this hot area.

摘要： An assessment of the new energy consumption capacity of the grid can help to improve new energy efficiency and its planning and development.The annual capacity of multi-regional new energy consumption is affected by the new energy installed capacity of each region,the output of thermal power units,the load size,and the exchange capacity between regional tie lines.In this paper,a real-time data processing method of a province is proposed,and a raw data processing method with dimensionality reduction equivalent is proposed.From the perspective of new installed capacity of new energy across regions,we obtain the assessment of the capacity of wind power photovoltaic bases in a given scenario,and propose new installed capacity for wind,light and energy storage power stations.

摘要： The objective of the study was to develop a univariate model for analyzing energy balance data from lactating goats at mid lactation and determine maintenance requirements and partial efficiencies of energy utilization. Energy balance data from eight studies involving lactating Murciano-Granadina goats fed total mixed diets, which accounted for a variation in metabolizable energy (MEI) intake, milk energy output (EI), and tissue energy balance, were used. The database included records obtained by indirect calorimetry. Data were adjusted with a mixed model that included the study as a random effect. Then, two multivariate linear models were obtained: metabolizable and net energy models. The metabolizable model was MEI=β0+β2E1+β3Tg+β4T1+ε and the net energy model was E1=β0+β1MEI+β2Tg+β3T1+ε;where β0, β1, β2 and β3 were the parameters, Tg was tissue energy retention and Tl the milk energy derived from body stores. For a better fitted proposed model, net energy for maintenance (NEm) was 283 kJ/kg of Body Weight 0.75 (BW) per day, and the efficiency of utilization of ME for lactation (k1), body weight gain (kg) and body tissue mobilization for milk production (kt) were 62%, 83% and 78%, respectively. Maintenance requirements and partial efficiencies for milk production and tissue energy mobilization were similar to the values proposed by INRA (2018). The increase in the efficiency of utilizing dietary energy for gain, compared with other feeding systems, was partially attributed to the stage of lactation, due to that goats were feeding at mid lactation.

摘要： In this paper, we investigate the translative containment measure for a convex domain Ki to contain, or to be contained in the homothetic copy of another convex domain tKj(t ≥ 0). Via the formulas of translative Blaschke and Poincaré in integral formula, we obtain a Bonnesen-style symmetric mixed isohomothetic inequality. The Bonnesen-style symmetric mixed isohomothetic inequality obtained is known as Bonnesen-style inequality if one of the domains is a disc. As a direct consequence, we attain an inequality which strengthen the result proved by Bonnesen, Blaschké and Flanders. Furthermore, by the containment measure and Blaschke's rolling theorem, we obtain the reverse Bonnesen-style symmetric mixed isohomothetic inequalities. These inequalities are the analogues of the known Bottema's result in 1933.

摘要： The goal of the present paper is to investigate an abstract system, called fractional differential variational inequality, which consists of a mixed variational inequality combined with a fractional evolution equation in the framework of Banach spaces. Using discrete approximation approach, an existence theorem of solutions for the inequality is established under some suitable assumptions.

摘要： 本发明提供一种基于Mixed‑Copula函数的风电场旋转备用容量优化方法。该方法通过考虑风电场内部的单台风机实际地貌特征即风机安装节点的海拔高度，以及计及相邻列之间的风速相关性的特征基础上，将更为接近真实的实际风电功率的输出进行风电场的旋转备用容量优化，以达到最小弃风量的目标，同时优化的结果可以给调频提供更多的有功支持。

摘要： 本发明公开了一种基于改进的Mixed Pooling‑YOLOV3目标检测方法，基于回归的思想进行目标检测算法的设计，实现了多尺度和多标签的分类。本发明基于目前一阶段目标检测方法YOLOV3的不足，设计了基于Darknet‑53结构的DPM网络作为特征提取器；其次，对原有损失函数进行重构，同时也对其参数进行优化，有效提升了检测精度，也使得收敛更加快速。DMP框架兼顾了网络的复杂度与检测的准确率，与常用的目标检测特征提取网络VGG‑16相比降低了模型运算量，本专利方法将计算机视觉的最新进展引入到目标检测领域中，在检测精度和检测速度上都有良好的效果，同时具有更好的性能和推广应用前景。

摘要： 本发明提供一种基于Mixed‑Copula函数的风电场旋转备用容量优化方法。该方法通过考虑风电场内部的单台风机实际地貌特征即风机安装节点的海拔高度，以及计及相邻列之间的风速相关性的特征基础上，将更为接近真实的实际风电功率的输出进行风电场的旋转备用容量优化，以达到最小弃风量的目标，同时优化的结果可以给调频提供更多的有功支持。