Processing软件在辅助教学中的应用

Processing软件是一个自由、开源的视觉艺术及视觉化呈现的程序设计平台,是专为艺术家设计的程序语言,尤其适合于由程序控制的动画开发。将Processing软件用于机构运动仿真,辅助《理论力学》课程中运动学部分的教学,比传统运动学仿真程序更简洁高效。该软件对学习其它程序设计语言也有帮助。

An Unprecedented Efficiency with Approaching 21%Enabled by Additive‑Assisted Layer‑by‑Layer Processing in Organic Solar Cells

Recently published in Joule,Feng Liu and colleagues from Shanghai Jiaotong University reported a record-breaking 20.8%power conversion efficiency in organic solar cells(OSCs)with an interpenetrating fibril network active layer morphology,featuring a bulk p-in structure and proper vertical segregation achieved through additive-assisted layer-by-layer deposition.This optimized hierarchical gradient fibrillar morphology and optical management synergistically facilitates exciton diffusion,reduces recombination losses,and enhances light capture capability.This approach not only offers a solution to achieving high-efficiency devices but also demonstrates the potential for commercial applications of OSCs.

Processing,microstructure,and mechanical properties of wire arc additively-manufactured AZ91 magnesium alloy using cold arc process

Thin walls of an AZ91 magnesium alloy with fine equiaxed grains were fabricated via cold arc-based wire arc additive manufacturing(CA-WAAM),and the droplet transfer behaviours,microstructures,and mechanical properties were investigated.The results showed that the cold arc process reduced splashing at the moment of liquid bridge breakage and effectively shortened the droplet transfer period.The microstructures of the deposited samples exhibited layered characteristics with alternating distributions of coarse and fine grains.During layer-by-layer deposition,the β-phase precipitated and grew preferentially along grain boundaries,while the fineη-Al_(8)Mn_(5)phase was dispersed in the α-Mg matrix.The mechanical properties of the CA-WAAM deposited sample showed isotropic characteristics.The ultimate tensile strength and elongation in the building direction(BD)were 282.7 MPa and 14.2%,respectively.The microhardness values of the deposited parts were relatively uniform,with an average value of HV 69.6.

Process Simulate软件在自动化生产线安装调试课程中的应用

针对自动化生产线安装调试课程的实践教学难题提出了使用仿真软件进行虚拟装调的方案。介绍了如何使用Process Simulate软件对自动化生产线进行虚拟装调。实践证明,使用Process Simulate软件能够有效提高自动化生产线安装调试课程的实践教学效果。

基于Arduino与Processing的心率检测计设计研究

随着社会经济的高速发展,人们的物质生活也有了极大的提高,但同时也伴随着各种疾病的到来,身体健康已经成为人们普遍关注的焦点,因此,心率检测仪、血压计、血糖仪等各种家用医疗监测仪器已经逐渐融入日常生活。心脏病是人们难以预防的突发致命疾病之一,本文介绍的是一款基于Arduino【是基于易用硬件和软件的原型开源平台,包由可编程的电路板(简称微控制器),以及集成开发环境(称为Arduino IDE)的现成软件组成】Processing(开源编程语言,包括编辑器、编译器、展示器)的简易心率检测计系统,其功能实用、操作简单,可以测量心率,当超出正常心率范围时及时预警,是一款便携的实时心率测试仪。

基于细粒度代码表示和特征融合的即时软件缺陷预测方法

即时软件缺陷预测指在软件更改初次提交之际预测该更改引入缺陷的倾向。此类预测针对单一程序变更,而非在粗粒度上进行。由于其即时性和可追溯性,该技术已在持续测试等领域得到广泛应用。目前的研究中,提取变更代码表示的方法粒度较粗,仅标出了变更行,而没有进行细粒度的标记。此外,现有的使用提交内容进行缺陷预测的方法,仅仅是把提交消息与变更代码的特征进行简单拼接,缺失了在特征空间上的深度对齐,这使得在提交消息质量参差不齐的情况下,会出现预测结果易受噪声干扰的情形,并且现有方法也未将领域专家设计的人工特征以及变更内容中的语义语法信息综合起来进行预测。为了解决上述问题,提出了一种基于细粒度代码表征和特征融合的即时软件缺陷预测方法。通过引入新的变更嵌入计算方法来在细粒度上表示变更代码。同时,引入特征对齐模块,降低提交消息中噪声对方法性能的影响。此外,使用神经网络从人工设计的特征中学习专业知识,充分利用现有特征进行预测。实验结果表明,相较于现有方法,该方法在3个性能指标上均有显著提升。

基于流程模拟软件对高温导热油产品分离塔操作异常的研究

合成型高温导热油装置产品分离塔是提纯导热油产品的关键环节。以产品塔的分离过程为研究对象,利用Aspen plus流程模拟软件建立了该塔的稳态模拟流程,通过对比模拟数据与实际运行参数验证了模型的可靠性。在此基础上对该塔的异常工况进行了水力学分析,针对装置开工投产以来出现的操作异常、塔顶重组分含量超标的问题进行了模拟分析论证。模拟结果表明当塔釜抽出需部分返送进料时易发生液泛,要严格控制返塔量在1000kg/h以内,以确保液泛率维持在安全阈值之下;在正常工况下若塔的回流量低于1900kg/h会导致精馏段传质过程异常,操作时必须确保回流量不低于此值,以确保精馏段液体喷淋密度高于最小允许值,进而维持正常的传质过程。基于上述模拟分析结果,对实际操作进行了针对性调整,有效解决了产品塔的运行异常问题,产品质量达到指标要求。

基于LabVIEW的智能建筑外墙饰面砖脱空识别软件开发

建筑外墙饰面砖出现脱空现象导致行人出行安全隐患。建筑外墙饰面砖常用锤击检测法识别脱空,识别结果需检测人员的判断。为了进一步提高检测准确率,该文应用LabVIEW开发了智能建筑外墙饰面砖脱空识别软件。该软件基于有限状态机模型开发了数据采集、数据分析和数据管理等功能模块。其中数据分析模块通过提取首波幅值和小波系数积分比特征,运用拉依达准则对数据进行预处理,结合K近邻算法构建脱空识别模型来判别饰面砖是否脱空。并通过制作外墙试件进行实验验证,结果表明软件识别试件的脱空识别率达到92%。因此,该软件能有效识别建筑外墙饰面砖脱空的大小和位置,且运行稳定可靠,在实际工程中有较高的应用价值。

基于知识图谱的软件工程课程思政教学改革

为了实现价值观引领、知识传授和能力培养的有机融合,分析软件工程课程思政建设和思政知识图谱的研究现状,结合软件工程课程思政教学实际情况,提出了基于知识图谱的课程思政教学改革路径,并详细阐述了思政知识图谱的构建方案,旨在为课程思政建设提供借鉴和参考.

故障监控软件在EP4数据采集器中的应用

在EP4型数据采集器拷机测试过程中,需要24小时不间断监控仪器运行状态。为此开发了一款通用型EP4数据采集器拷机故障监控软件。本文论述了该软件的使用方法、基本架构及关键技术,证实了自主研发的软件操作简单,界面友好,功能强大。

基于项目精化的“软件工程”课程教学方法探索

“软件工程”是计算机相关专业的核心课程之一,对于培养学生的工程素质和实践能力具有重要意义。然而,在传统课程教学中,由于教学计划和课时安排的限制,学生的课程设计往往显得仓促且碎片化,容易导致对项目理解不够深入、软件作品不够完善等问题,从而影响学生对软件工程方法论的理解。为了解决这些问题,文章提出了一种基于项目精化的“软件工程”课程教学方法。该方法通过一个贯穿始终的项目,将所有软件专业课程设计有机串联,不同课程聚焦于项目的不同部分进行深入优化,最终在“软件工程”课程实践阶段完成整个项目的开发和部署,从而形成一个较为完整的项目开发闭环。实践表明,这种方法不仅能够提升学生的学习动力和成就感,还能加深其对项目的理解,强化软件工程方法论的应用意识,并有效培养学生的实践能力、团队协作能力和创新思维能力,为“软件工程”课程教学提供了新的思路。

Investigation on taste characteristics and sensory perception of soft-boiled chicken during oral processing based on electronic tongue and electronic nose

The sensory perception of food is a dynamic process,which is closely related to the release of flavor substances during oral processing.It’s not only affected by the food material,but also subjected to the individual oral environment.To explore the oral processing characteristics of soft-boiled chicken,the sensory properties,texture,particle size,viscosity,characteristic values of electronic nose and tongue of different chicken samples were investigated.The correlation analysis showed that the physical characteristics especially the cohesiveness,springiness,resilience of the sample determined oral processing behavior.The addition of chicken skin played a role in lubrication during oral processing.The particle size of the bolus was heightened at the early stage,and the fluidity was enhanced in the end,which reduced the chewing time to the swallowing point and raised the aromatic compounds signal of electronic nose.But the effect of chicken skin on chicken thigh with relatively high fat content,was opposite in electronic nose,which had a certain masking effect on the perception of umami and sweet taste.In conclusion,fat played a critical role in chicken oral processing and chicken thigh had obvious advantages in comprehensive evaluation of soft-boiled chicken,which was more popular among people.

软件工程专业研究生多维度协同人才培养新模式

“双一流”建设背景下,研究生创新人才培养成为高校教育改革的重要议题。地方性高校面临人才培养质量不高、创新能力不足等问题。为此,以软件工程专业研究生培养为例,提出多维度协同人才培养模式,探索校政企多维度协同研究生人才培养的新途径,该模式将导师精细化培育和学生差异化发展相结合,强调理论与实践相结合,注重培养学生的创新思维能力、实践能力和团队合作能力,有力推动了软件工程专业研究生教育发展,实践成效显著。

Constraints on Characteristics and Distribution of Gas Hydrate and Free Gas Using Broad-Band Processing of Three-Dimensional Seismic Data

Gas hydrate drilling expeditions in the Pearl River Mouth Basin,South China Sea,have identified concentrated gas hydrates with variable thickness.Moreover,free gas and the coexistence of gas hydrate and free gas have been confirmed by logging,coring,and production tests in the foraminifera-rich silty sediments with complex bottom-simulating reflectors(BSRs).The broad-band processing is conducted on conventional three-dimensional(3D)seismic data to improve the image and detection accuracy of gas hydratebearing layers and delineate the saturation and thickness of gas hydrate-and free gas-bearing sediments.Several geophysical attributes extracted along the base of the gas hydrate stability zone are used to demonstrate the variable distribution and the controlling factors for the differential enrichment of gas hydrate.The inverted gas hydrate saturation at the production zone is over 40% with a thickness of 90 m,showing the interbedded distribution with different boundaries between gas hydrate-and free gas-bearing layers.However,the gas hydrate saturation value at the adjacent canyon is 70%,with 30-m-thick patches and linear features.The lithological and fault controls on gas hydrate and free gas distributions are demonstrated by tracing each gas hydrate-bearing layer.Moreover,the BSR depths based on broad-band reprocessed 3D seismic data not only exhibit variations due to small-scale topographic changes caused by seafloor sedimentation and erosion but also show the upward shift of BSR and the blocky distribution of the coexistence of gas hydrate and free gas in the Pearl River Mouth Basin.

高职软件技术专业“三维度三阶段三融入”核心素养培育研究

针对高职软件技术专业核心素养培育中存在的问题,以学生发展为中心,我国提出了软件技术专业“三维度三阶段三融入”核心素养培育模式。该模式明确了新时代高职软件技术专业三维度核心素养培育的现实要求和深远意义,系统设计学生“准职业人”“职业人”“企业人”三个不同阶段核心素养培育的实施路径,实施“三融入”核心素养培育工程,切实提高了人才培养质量,实现了高职软件技术专业学生的可持续发展。

Toluene Processed All-Polymer Solar Cells with 18%Efficiency and Enhanced Stability Enabled by Solid Additive:Comparison Between Sequential-Processing and Blend-Casting

The emergence of polymerized small molecule acceptors(PSMAs)has significantly improved the performance of all-polymer solar cells(all-PSCs).However,the pace of device engineering lacks behind that of materials development,so that a majority of the PSMAs have not fulfilled their potentials.Furthermore,most high-performance all-PSCs rely on the use of chloroform as the processing solvent.For instance,the recent highperformance PSMA,named PJ1-γ,with high LUMO,and HOMO levels,could only achieve a PCE of 16.1%with a high-energy-level donor(JD40)using chloroform.Herein,we present a methodology combining sequential processing(SqP)with the addition of 0.5%wt PC_(71)BM as a solid additive(SA)to achieve an impressive efficiency of 18.0%for all-PSCs processed from toluene,an aromatic hydrocarbon solvent.Compared to the conventional blend-casting(BC)method whose best efficiency(16.7%)could only be achieved using chloroform,the SqP method significantly boosted the device efficiency using toluene as the processing solvent.In addition,the donor we employ is the classic PM6 that has deeper energy levels than JD40,which provides low energy loss for the device.We compare the results with another PSMA(PYF-T-o)with the same method.Finally,an improved photostability of the SqP devices with the incorporation of SA is demonstrated.

Effects of friction stir processing and nano-hydroxyapatite on the microstructure,hardness,degradation rate and in-vitro bioactivity of WE43 alloy for biomedical applications

Nowadays,magnesium alloys are emerging in biomedical implants for their similar properties to natural bones.However,the rapid degradation of magnesium alloys in biological media hinders successful implantation.Refinement of microstructure,as well as reinforcement particles can significantly improve the degradation rate.In this work,multi-pass friction stir processing(FSP)was proposed to synthesize WE43/nano-hydroxyapatite(n HA)surface composite,the microstructure,reinforced particle distribution,micro-hardness,corrosion behavior and in-vitro bioactivity were studied.The subsequent FSP passes of WE43 alloy and WE43/n HA composite refined the grain size which was reduced by 94.29%and 95.92%(2.63 and 1.88μm,respectively)compared to base metal after three passes.This resulted in increasing the microhardness by 120%(90.86 HV0.1)and 135%(105.59 HV0.1)for the WE43 and WE43-n HA,respectively.It is found that increasing FSP passes improved the uniform distribution of n HA particles within the composite matrix which led to improved corrosion resistance and less degradation rate.The corrosion rate of the FSPed WE43/n HA composite after three passes was reduced by 38.2%(4.13 mm/year)and the degradation rate was reduced by 69.7%(2.87 mm/y).This is attributed to secondary phase(Mg24Y5and Mg41Nd5)particle fragmentation and redistribution,as well as a homogeneous distribution of n HA.Additionally,the growing Ca-P and Mg(OH)2layer formed on the surface represented a protective layer that reduced the degradation rate.The wettability test revealed a relatively hydrophilic surface with water contact angle of 49.1±2.2°compared to 71.2±2.1°for base metal.Also,biomineralization test showed that apatite layer grew after immersion 7d in simulated body fluid with atomic ratio of Ca/P 1.60 approaching the stoichiometric ratio(1.67)indicating superior bioactivity of FSPed WE43/n HA composite after three passes.These results raise that the grain refinement by FSP and introduction of n HA particles significantly improved the degradation rate and in-vitro bioactivity of WE43 alloy for biomedical applications.

A new insight into LPSO phase transformation and mechanical properties uniformity of large-scale Mg-Gd-Y-Zn-Zr alloy prepared by multi-pass friction stir processing

A large-scale fine-grained Mg-Gd-Y-Zn-Zr alloy plate with high strength and ductility was successfully prepared by multi-pass friction stir processing(MFSP)technology in this work.The structure of grains and long period stacking ordered(LPSO)phase were characterized,and the mechanical properties uniformity was investigated.Moreover,a quantitative relationship between the microstructure and tensile yield strength was established.The results showed that the grains in the processed zone(PZ)and interfacial zone(IZ)were refined from 50μm to 3μm and 4μm,respectively,and numerous original LPSO phases were broken.In IZ,some block-shaped 18R LPSO phases were transformed into needle-like 14H LPSO phases due to stacking faults and the short-range diffusion of solute atoms.The severe shear deformation in the form of kinetic energy caused profuse stacking fault to be generated and move rapidly,greatly increasing the transformation rate of LPSO phase.After MFSP,the ultimate tensile strength,yield strength and elongation to failure of the large-scale plate were 367 MPa,305 MPa and 18.0% respectively.Grain refinement and LPSO phase strengthening were the major strengthening mechanisms for the MFSP sample.In particularly,the strength of IZ was comparable to that of PZ because the strength contribution of the 14H LPSO phase offsets the lack of grain refinement strengthening in IZ.This result opposes the widely accepted notion that IZ is a weak region in MFSP-prepared large-scale fine-grained plate.

基于“教学立方”软件对《兽医临床诊断学》全过程管理的教学模式探索

随着信息科学和互联网技术的发展,传统的课程教学、课程安排和考核制度无法完全适合学生和社会的新需求。为深化学校本科教育教学改革,坚持育人和育德相统一,保障教学质量,培养出优秀兽医工作者,保障畜牧业和养殖业生产的发展,笔者通过采用“教学立方”软件对《兽医临床诊断学》进行全过程的教学管理。相对于上一届学生使用的传统教学方法,应用“教学立方”软件后,学生平均成绩高出5.39分,优秀率高出6.60%。该教学模式创新实践教学,优化教学方式,建立多元化考核体系,使本课程的教学更加生动高效,提高了教学质量和学习效果。

基于深度学习的软件定义网络异常检测方法

软件定义网络(software-defined networking,SDN)作为一种新兴的网络架构,为网络管理和安全提供了新思路。本文针对SDN中的异常检测问题探讨了一种基于深度学习的方法。首先,研究了深度学习在异常检测领域的应用。其次,通过数据采集与预处理,获取了SDN的仿真流量数据,并进行了数据清洗、归一化和降维处理。最后,构建了基于自编码器的异常检测模型,并在Matlab平台上对仿真数据进行了验证。结果表明,所提方法在精确率、召回率和F_(1)分数等指标上具有良好的性能,能有效识别SDN中的异常流量。