Developing Lexicons for Enhanced Sentiment Analysis in Software Engineering:An Innovative Multilingual Approach for Social Media Reviews

Sentiment analysis is becoming increasingly important in today’s digital age, with social media being a significantsource of user-generated content. The development of sentiment lexicons that can support languages other thanEnglish is a challenging task, especially for analyzing sentiment analysis in social media reviews. Most existingsentiment analysis systems focus on English, leaving a significant research gap in other languages due to limitedresources and tools. This research aims to address this gap by building a sentiment lexicon for local languages,which is then used with a machine learning algorithm for efficient sentiment analysis. In the first step, a lexiconis developed that includes five languages: Urdu, Roman Urdu, Pashto, Roman Pashto, and English. The sentimentscores from SentiWordNet are associated with each word in the lexicon to produce an effective sentiment score. Inthe second step, a naive Bayesian algorithm is applied to the developed lexicon for efficient sentiment analysis ofRoman Pashto. Both the sentiment lexicon and sentiment analysis steps were evaluated using information retrievalmetrics, with an accuracy score of 0.89 for the sentiment lexicon and 0.83 for the sentiment analysis. The resultsshowcase the potential for improving software engineering tasks related to user feedback analysis and productdevelopment.

Overview of Moving Particle Semi-implicit Techniques for Hydrodynamic Problems in Ocean Engineering

With the significant development of computer hardware,many advanced numerical techniques have been proposed to investigate complex hydrodynamic problems.This article aims to provide a detailed review of moving particle semi-implicit(MPS)techniques and their application in ocean and coastal engineering.The achievements of the MPS method in stability and accuracy,boundary conditions,and acceleration techniques are discussed.The applications of the MPS method,which are classified into two main categories,namely,multiphase flows and fluid-structure interactions,are introduced.Finally,the prospects and conclusions are highlighted.The MPS method has the potential to solve practical problems.

Feasibility-Guided Constraint-Handling Techniques for Engineering Optimization Problems

The particle swarm optimization(PSO)algorithm is an established nature-inspired population-based meta-heuristic that replicates the synchronizing movements of birds and sh.PSO is essentially an unconstrained algorithm and requires constraint handling techniques(CHTs)to solve constrained optimization problems(COPs).For this purpose,we integrate two CHTs,the superiority of feasibility(SF)and the violation constraint-handling(VCH),with a PSO.These CHTs distinguish feasible solutions from infeasible ones.Moreover,in SF,the selection of infeasible solutions is based on their degree of constraint violations,whereas in VCH,the number of constraint violations by an infeasible solution is of more importance.Therefore,a PSO is adapted for constrained optimization,yielding two constrained variants,denoted SF-PSO and VCH-PSO.Both SF-PSO and VCH-PSO are evaluated with respect to ve engineering problems:the Himmelblau’s nonlinear optimization,the welded beam design,the spring design,the pressure vessel design,and the three-bar truss design.The simulation results show that both algorithms are consistent in terms of their solutions to these problems,including their different available versions.Comparison of the SF-PSO and the VCHPSO with other existing algorithms on the tested problems shows that the proposed algorithms have lower computational cost in terms of the number of function evaluations used.We also report our disagreement with some unjust comparisons made by other researchers regarding the tested problems and their different variants.

Durability evaluation for existing railway engineering: a review

Purpose – This study aims to analyze the factors, evaluation techniques of the durability of existing railwayengineering.Design/methodology/approach – China has built a railway network of over 150,000 km. Ensuring thesafety of the existing railway engineering is of great significance for maintaining normal railway operationorder. However, railway engineering is a strip structure that crosses multiple complex environments. Andrailway engineering will withstand high-frequency impact loads from trains. The above factors have led todifferences in the deterioration characteristics and maintenance strategies of railway engineering compared toconventional concrete structures. Therefore, it is very important to analyze the key factors that affect thedurability of railway structures and propose technologies for durability evaluation.Findings – The factors that affect the durability and reliability of railway engineering are mainly divided intothree categories: material factors, environmental factors and load factors. Among them, material factors alsoinclude influencing factors, such as raw materials, mix proportions and so on. Environmental factors varydepending on the service environment of railway engineering, and the durability and deterioration of concretehave different failure mechanisms. Load factors include static load and train dynamic load. The on-site rapiddetection methods for five common diseases in railway engineering are also proposed in this paper. Thesemethods can quickly evaluate the durability of existing railway engineering concrete.Originality/value – The research can provide some new evaluation techniques and methods for thedurability of existing railway engineering.

Innovative Techniques Unveiled in Advanced Sheet Pile Curtain Design

This thorough review explores the complexities of geotechnical engineering, emphasizing soil-structure interaction (SSI). The investigation centers on sheet pile design, examining two primary methodologies: Limit Equilibrium Methods (LEM) and Soil-Structure Interaction Methods (SSIM). While LEM methods, grounded in classical principles, provide valuable insights for preliminary design considerations, they may encounter limitations in addressing real-world complexities. In contrast, SSIM methods, including the SSI-SR approach, introduce precision and depth to the field. By employing numerical techniques such as Finite Element (FE) and Finite Difference (FD) analyses, these methods enable engineers to navigate the dynamics of soil-structure interaction. The exploration extends to SSI-FE, highlighting its essential role in civil engineering. By integrating Finite Element analysis with considerations for soil-structure interaction, the SSI-FE method offers a holistic understanding of how structures dynamically interact with their geotechnical environment. Throughout this exploration, the study dissects critical components governing SSIM methods, providing engineers with tools to navigate the intricate landscape of geotechnical design. The study acknowledges the significance of the Mohr-Coulomb constitutive model while recognizing its limitations, and guiding practitioners toward informed decision-making in geotechnical analyses. As the article concludes, it underscores the importance of continuous learning and innovation for the future of geotechnical engineering. With advancing technology and an evolving understanding of soil-structure interaction, the study remains committed to ensuring the safety, stability, and efficiency of geotechnical structures through cutting-edge design and analysis techniques.

Repairing peripheral nerve injury using tissue engineering techniques

Each year approximately 360,000 people in the United States suffer a peripheral nerve injury （PNI）, which is a leading source of lifelong disability （Kelsey et al., 1997; Noble et al., 1998）. The most frequent cause of PNIs is motor vehicle accidents, while gunshot wounds, stabbings, and birth trauma are also common factors. Patients suffering from disabilities as a result of their PNIs are also burdensome to the healthcare system, with aver- age hospital stays of 28 days each year （Kelsey et al., 1997; Noble et al., 1998）.

An Assembly Coastal Building Technique in Port Engineering

The assembly coastal building technique initiated at home and abroad,is for a novel vertical standing harbor structure.Its main concept is the assembling components which can be combined and locked together to form a large caisson.Its application and future are discussed for a building.After many years of application and tests,the technique has a high stability,a wide range of application,low workload and fast construction speed.It can be widely applied in future for harbor engineering projects.

Application of Off-season Cultivation Techniques in Landscape Engineering of Beijing Garden Expo

It is a key and difficult point in landscape engineering to keep higher survival rate of off-season cultivation.This paper takes widely-planted species such as Ginkgo biloba,Metasequoia glyptostroboides and Cedrus deodara in Beijing Garden Expo for example,summarizes key off-season cultivation techniques in urban landscaping,elaborated key technical links such as seedling selection,cultivation techniques,after-cultivation maintenance,and provided useful references for the off-season cultivation in urban landscaping of north China.

Application of Chemical Tracing Experiment Technique in Leakage Detection of Hydraulic Engineering

[Objective] The research aimed to study the application of chemical tracing experiment technique in leakage detection of hydraulic engineering.[Method] According to the current situation of Sanyuan Western Suburb Reservoir in Xianyang City of Shaanxi Province,three sections （L1,L2 and L3） were set.KI was selected as the chemical tracer to carry out the tracing and detection research.[Result] There was no obvious leakage phenomenon in L1,L2 and L3 sections.The impermeability of rock in some dam abutments was bad.[Conclusion] The leakage reason of Western Suburb Reservoir was that the impermeability of rock in some dam abutments couldn’t satisfy seepage requirement.After the reservoir was put into operation,the water level in front of dam rose,and the ground water level of dam abutment also rose.The penetration water pressure correspondingly increased,and the water content of bank slope at the downstream of dam increased.

Study on high rock slop anchoring technique of large rock engineering

Monitoring data from the Three Gorges Project show that the resulted tensile stresses are mainly distributed within the front section of the internal anchoring section which is often measuring 2.5 m in length. The composition of two early strength cement grout mixes marked as R_3350 and R_7350 was successfully developed to accelerate anchoring facilities installation and to reduce its intervention with the shiplock construction. It was measured that the ground water pH value in the sidewall slopes of the permanent navigation shiplock during the construction period was close to 8. Based on those characteristics it is concluded that the groundwater is weakly corrosive to steel material and will appear as non-corrosive to the steel wire strands embedded in the cement grout set. The advanced model of 3 MN unbonded anchor cables with double anti-corrosion protection(including the corrugated pipe) is developed to meet the needs of stabilizing the high sidewall rock slopes of the permanent navigation shiplock on the Three Gorges Project.

Constitutive modeling for mechanical behaviors of geomaterials, newdesigns and techniques in geotechnical engineering

This Special Issue of the Journal of Rock Mechanics and GeotechnicalEngineering （JRMGE） contains 13 papers prepared by internationalexperts on various general topics in geomechanics, rockmechanics and geotechnical engineering. It represents a usefulmix of theoretical developments, testing and practical applications.We present in the following brief details in the papers, alphabeticallyin accordance with the last name of the first author.Barla presents a review of tunneling techniques with emphasison the full-face method combining full-face excavation and facereinforcement by means of fiber-glass elements with a yieldcontrolsupport. This method has been used successfully in difficultgeologic conditions, and for a wide spectrum of ground situations.The validation of the method with respect to the Saint Martin LaPorte access adit along the LyoneTurin Base tunnel experiencingseverely squeezing conditions during excavation is also includedin the paper. The numerical modeling with consideration of therock mass time-dependent behavior showed a satisfactory agreementwith monitoring results.

基于Pro/Engineer的三维零件模型的参数化设计

在Pro/Engineer三维特征建模原理的基础上,利用Pro/Engineer具有全相关性、单一数据库等特点,详细研究了利用Pro/Engineer二次开发工具Pro/Toolkit进行参数化二次开发的原理、方法以及实现的关键技术,延伸和扩展了Pro/Engineer软件的参数化功能,实现了3D零件模型的二次开发,并给出了工程应用实例。

Pro/ENGINEER软件的二次开发技术

对 Ｐｒｏ／ＥＮＧＩＮＥＥＲ软件的用户化工具箱 Ｐｒｏ／ＴＯＯＬＫＩＴ的工作方式、接口技术及程序开发步骤进行了介绍，以方便Ｐｒｏ／ＥＮＧＩＮＥＥＲ软件的二次开发应用。

D型打结器Pro/Engineer仿真及动作功能分析

对D型打结器主要部件的构成及其功能进行了描述,利用Pro/E软件对打结器各元件进行装配,并对其打结装置进行机构的运动模拟仿真。把打结器复杂的打结动作总结为4个打结阶段,最后对打结器主要机构所完成的动作及功能进行了分析,为国内设计制造D型打结器及打结器后续改进进行了前期理论基础工作。

Pro/ENGINEER软件的二次开发技术

对Ｐｒｏ／ＥＮＧＩＮＥＥＲ软件的用户化工具箱Ｐｒｏ／Ｔ００ＬＩＴ的工作方式、接口技术及程序开发步骤进行了介绍，以方便Ｐｒｏ／ＥＮＧＩＮＥＥＲ软件的二次开发应用．

基于Pro/Engineer的刮板输送机三维动态仿真与优化设计

论述了利用Pro/Engineer对刮板输送机进行三维动态仿真的具体过程 ,给出了对刮板输送机进行有限元分析、接触分析、结构分析、疲劳分析的方法 ,最后探讨利用仿真结果对刮板输送机进行了最优设计的方法。

基于Pro/Engineer的螺旋式桑叶采摘机设计

结合广西地区桑叶种植和人工采摘情况,为实现桑叶采摘机械化,研制了一款桑叶采摘机,利用螺旋式提升结构完成桑叶采摘过程。采用Pro/Engineer软件,对螺旋式桑叶采摘机的桑枝拨动定位装置、桑叶采摘装置、行走装置及机身等部件进行三维实体建模及虚拟样机装配,并对长径比比较大的关键零部件进行稳定性校核。结果表明:关键零部件满足稳定性要求;整机机械结构简单,使用时便于操作,能实现桑叶的机械化采摘,对减轻桑农劳动强度具有重要意义。

基于Pro/ENGINEER开发的材料力学仿真实验系统

基于Pro/ENGINEER的三维实体造型、装配模拟、机构运动仿真等功能开发了材料力学仿真实验系统,使抽象、复杂的教学内容变得生动、形象、直观,提高了实验教学效果。

基于Pro/Engineer的数控加工与后置处理技术

论述了基于Pro/Engineer的注射模数控加工技术 ,并介绍了Pro/Engineer通用后置处理软件包 (NCPsotProcessor)的功能和内容 ,后置处理软件包进行的后置处理技术 ,此后置处理技术较好地应用于MV -610加工中心的加工。

基于Pro/Engineer的智能出模系统

针对当前我国CAD应用的日益普及和推广 ,而二次开发严重滞后的现状 ,利用VisualC+ + 6.0的集成开发环境 (IDE)和Pro/Engineer的二次开发模块Pro/Toolkit开发了智能出模系统 。