Industrial Requirements Research Articles

Ketersediaan Tempe yang Menerapkan Cara Produksi Pangan yang Baik di Jabodetabek serta Pengetahuan Konsumen untuk Membelinya

Tempe is a nutritious, healthy, and affordable food. Tempe production is simple, but less hygienic under traditional production, therefore can have inconsistent quality, safety, and reduce consumer interest. In Indonesia, Good Manufacturing Practices (GMP) implementation is a basic requirement for food industries, including tempe industries, in producing safe food products. It is yet unknown the availability of GMP tempe, especially in Jabodetabek area and how it relates to consumers' willingness to purchase. This study aimed to determine the availability of GMP tempe in Jabodetabek and to analyze the knowledge, perceptions, and willingness of Jabodetabek consumers to purchase GMP tempe. The research method included observing the GMP-applying tempe availability and surveying consumers' knowledge and willing-ness to purchase GMP-applying tempe using google form questionnaire. Data analysis used descriptive and Spearman correlation test. The results showed that GMP-applying tempe was available in almost half (38%) of market sample in Jabodetabek. GMP-applying tempe was available in small number (1%) of traditional markets and most (72%) supermarkets. Most of the respondents (54%) were used to consuming good quality tempe. Almost all respondents (78%) understood the advantage of GMP-applying tempe. Most respondents (67%) were willing to purchase GMP-applying tempe with a maximum price increase of 20% from regular tempe.

A CONCEPTUAL FRAMEWORK OF DESIGN OPTIMISATION OBJECTIVES FOR ALIGNING LOWER-LIMB EXOSKELETONS TO INDUSTRIAL REVOLUTION 5

Lower-limb exoskeletons can be used extensively in manufacturing, medical, rehabilitation, and the military. The design optimisation for each exoskeleton is vary depending on its intended use. Improving the design of the lower-limb exoskeletons encompasses objectives, attributes, and methods for fulfilling various application. This paper aims to establish a conceptual framework for developing most optimum design for lower-limb exoskeletons for industrial use. Additionally, this paper offers a critical review of design optimization for lower-limb exoskeletons with the aim of enhancing the ergonomics of workers in the industrial sector. To achieve this, this paper delves into an overview of both original research papers and review articles to extract valuable methodologies and design considerations for optimising lower-limb exoskeletons specifically for industrial use. The key outcomes of this paper include recommendedmethods, mechanical design considerations, and a conceptual framework specifically tailored for the design optimization of lower-limb exoskeletons in industrial environments. By offering a comprehensive overview of existing research, this review paper not only aids researchers and designers in the field but also benefits end-users, manufacturers, and the environment. The proposed conceptual framework serves as a valuable tool to guide the development of future lower-limb exoskeletons, ensuring a harmonious integration of technology, user needs, and industrial requirements.

Study on Preparation Technology and Heat Conduction Mechanism of High-Purity & Ultra-Fine Alumina Powder from Scrap Aluminum Cans

In view of the increasing scarcity of bauxite resources in China, the high energy consumption and high pollution of electrolytic aluminum, and the requirements for energy conservation and environmental protection, aluminum recycling and high-value utilization of its derivatives have evolved into a crucial development requirement for the aluminum industry in the future. As an important part of the development of recycled aluminum resources, the high-value application of scrap aluminum cans has always been a hot research topic in various recycled aluminum processing enterprises and scientific research units. The traditional regeneration system of waste cans includes a series of complex technological processes such as pretreatment, paint removal, smelting system and casting system, which is difficult to control in the middle of the process. Most of the recycled scrap aluminum cans are cast and downgraded for later use, except for a part of them used as alloy materials for new cans. In this paper, combined with the research on the preparation of metal aluminum alkoxide, combined with recrystallization heat conduction to further study the effective dissolution or adsorption how to remove impurity elements to obtain high-purity aluminum alcohol salt mechanism research, and thermal effect of alcohols with different carbon chains on the synthesis of high-purity aluminum alkoxide was further investigated. Moreover, the changes in morphology and pore size distribution of hydrolyzed alumina precursor materials under different hydrothermal temperature conditions were discussed by means of the alkoxide hydrolysis-sol-gel process. Eventually, the aluminum alkoxide was obtained by the reaction of waste cans with isopropanol and heavy crystal thermal conductivity, and the high-purity aluminum alkoxide was purified by vacuum distillation. Under the hydrothermal condition of 160°C, the high-purity alumina material with a purity of 99.99% and an original crystal size of 200nm was prepared.

Digital technology-enabled AEC project management: practical use cases, deployment patterns and emerging trends

PurposeDespite extensive academic research related to digital technologies (DT), their integration into architecture, engineering and construction (AEC) projects lags in practice. This paper aims to discover DT deployment patterns and emerging trends in real-life AEC projects.Design/methodology/approachA case study methodology was adopted, including individual case analyses and comparative multiple-case analyses.FindingsThe results revealed the temporal distribution of DT in practical AEC projects, specific DT products/software, major project types integrated with digital solutions, DT application areas and project stages and associated project performance. Three distinct patterns in DT adoption have been observed, reflecting the evolution of DT applications, the progression from single to multiple DT integration and alignment with emerging industry requirements. The DT adoption behavior in the studied cases has been examined using the technology-organization-environment-human (TOE + H) framework. Further, eight emerging trend streams for future DT adoption were identified, with “leveraging the diverse features of certain mature DT” being a shared recognition of all studied companies.Practical implicationsThis research offers actionable insights for AEC companies, facilitating the development of customized DT implementation roadmaps aligned with organizational needs. Policymakers, industry associations and DT suppliers may leverage these findings for informed decision-making, collaborative educational initiatives and product/service customization.Originality/valueThis research provides empirical evidence of applicable products/software, application areas and project performance. The examination of the TOE + H framework offers a holistic understanding of the collective influences on DT adoption. The identification of emerging trends addresses the evolving demands of the AEC industry in the digital era.

BPM challenges, limitations and future development directions – a systematic literature review

PurposeThe aim of this paper is to identify the main challenges and limitations of current business process management (BPM) development directions noticed by researchers, as well as to define the areas of the main BPM paradigm shifts necessary for the BPM of tomorrow to meet the challenges posed by Industry 4.0 and the emerging Industry 5.0. This is extremely important from the perspective of eliminating the existing broadening gap between the considerations of academic researchers and the needs of business itself.Design/methodology/approachA systematic literature review was conducted on the basis of the resources of two digital databases: Web of Science (WoS) and SCOPUS. Based on the PRISMA protocol, the authors selected 29 papers published in the last decade that diagnosed the challenges and limitations of modern BPM and contained recommendations for its future development. The content of the articles was analyzed within four BPM core areas.FindingsThe authors of the selected articles most commonly point to the areas of organization (21 articles) and methods and information technology (IT) (22 articles) in the context of the challenges and limitations of current BPM and the directions of recommended future BPM development. This points to the prevalence among researchers of the perspective of Industry 4.0 – or focus on technological solutions and raising process efficiency, with the full exclusion or only the partial signalization of the influence of implementing new technologies on the stakeholders and in particular – employees, their roles and competencies – the key aspects of Industry 5.0.Research limitations/implicationsThe proposal of BPM future development directions requires the extension of the BPM paradigm, taking into account its holistic nature, especially unpredictable, knowledge-intensive business processes requiring dynamic management, the need to integrate BPM with knowledge management (KM) and the requirements of Industry 5.0 in terms of organizational culture. The limitation is that the study is based on only two databases: WoS and SCOPUS and that the search has been narrowed down to publications in English only.Practical implicationsThe proposal of BPM future development directions also requires the extension of the BPM paradigm, taking into account the specific challenges and limitations that managers encounter on a daily basis. The presented summaries of the challenges and limitations resulting from the literature review are accompanied by recommendations that are primarily dedicated to practitioners.Social implicationsThe article indicates the area people and culture as one of the four core areas of BPM. It emphasizes the necessity to account to a greater degree for the influence of people, their knowledge, experience and engagement, as well as formal and informal communication, without which it is impossible to use the creativity, innovativeness and dynamism of the individual and the communities to create value in the course of business process execution.Originality/valueTo the authors' knowledge, this is the first systematic review of the literature on the limitations of modern BPM and its future in the context of Industry 4.0 and Industry 5.0.

A Comprehensive 3-Steps Methodology for Vibration-based Fault Detection, Diagnosis and Localization in Rotating Machines

In any industry, it is the requirement to know whether the machine is healthy or not to operate machine further. If the machine is not healthy then what is the fault in the machine and then finally its location. The paper is proposing a 3-steps methodology for the machine fault diagnosis to meet the industrial requirements to aid the maintenance activity. The Step-1 identifies whether machine is healthy or faulty, then Step-2 detect the type of defect and finally its location in Step-3. This method is extended further from the earlier study on the 2-Steps method for the rotor defects only to the 3-Steps methodology to both rotor and bearing defects. The method uses the optimised vibration parameters and a simple Artificial Neural Network (ANN)-based Machine Learning (ML) model from the earlier studies. The model is initially developed, tested and validated on an experimental rotating rig operating at a speed above 1st critical speed. The proposed method and model are then further validated at 2 different operating speeds, one below 1st critical speed and other above 2nd critical speeds. The machine dynamics are expected to be significantly different at these speeds. This highlights the robustness of the proposed 3-Steps method. Conflict of Interest Statement The authors declare no conflicts of interest.

Humic Acid: A Promising and Green Bioorganic Catalyst in Organic Syntheses

AbstractThe growing pollution and threat to the environment demand green synthetic methods. Green chemistry mainly focuses on minimizing the waste and utilization of green solvents, energy sources, and catalysts and prefers one‐pot reactions. In this context, humic acid (HA), a natural bioorganic catalyst found in rivers, peat coal and sewage; is a high molecular weight macromolecule containing multifunctional groups, mainly contains quinone, phenolic OH, and COOH groups which make it acidic and activate carbonyl groups by protonation. Owing to its green aspect such as biodegradability, recyclability and reusability, humic acid is considered as sustainable bioorganic catalyst which meets the criteria for industrial requirements. The HA is mild acidic in nature, thus many functional groups tolerate in the HA catalyzed reactions. After few initial reports in 2001 and 2009, the HA catalyzed reactions gained much attention by the organic synthetic community from 2019 in aldol condensation, Knoevenagel condensation, Claisen‐Schmidt reaction, Michael addition, Strecker synthesis, tetrazole synthesis, Hantzsch dihydropyridine synthesis, hydrosilylation of terminal alkenes, hydrogenation, α‐aminophosphonate synthesis, cross coupling reactions such as Heck and Suzuki coupling reactions. Herein we report the comprehensive analysis on the role of HA in organic transformations providing diverse array of molecular scaffolds till date and future perspective.

Breaking the Mold: Towards Rapid and Cost-Effective Microbial Contamination Detection in Paints and Cosmetics Using ATP-Bioluminescence

Traditional culture-based methods, though a “gold standard” for bacterial detection in various industrial sectors, do often not fulfill today’s high requirements regarding rapidity, on-site applicability, and cost-efficiency both during operation and evaluation. Here, the feasibility of using an adenosine triphosphate (ATP)-based assay for determining microbial contaminations in paints and cosmetics was investigated and compared with standard plate count techniques and dipslides. Therefore, we initially determined the level of sensitivity and assessed the accuracy and concordance among the different methods via spiking tests using a mix of frequently abundant bacterial species to simulate microbial contamination. Bioluminescence intensity was linearly proportional to log colony counts over five orders of magnitude (R2 = 0.99), indicating a high level of sensitivity. Overall, the accuracy varied depending on the test specimen, most probably due to matrix-related quenching effects. Although the degree of conformity was consistently higher at target concentrations ≥ 105 CFU·mL−1, microbial contaminations were detectable down to 103 CFU·mL−1, thus meeting the high requirements of various industries. ATP-based results tended to be within an order of magnitude lower than the reference. However, bearing that in mind, the developed assay serves as a rapid, real-time alternative for routine quality control and hygiene monitoring.

The influence of induction-assisted milling on the machining characteristics and surface integrity of γ-TiAl alloys

The γ-TiAl alloys are characterized by low density, high specific strength, and excellent high-temperature performance, making it an ideal material for achieving lightweight and high-temperature durability in high-pressure compressors. However, due to its intrinsic embrittlement, conventional machining (CM) methods often lead to machining defects, making it difficult to meet industrial requirements. Induction-assisted machining (IAM) provides a new approach to improve the machinability of γ-TiAl alloy as an emerging machining technology. In this study, finite element analysis was first used for thermal-electromagnetic coupling analysis to determine the depth of the thermal affected zone and preheating time. Subsequently, the influence of two key parameters, preheating temperature and feed rate, on machining characteristics and surface integrity was investigated, and compared with traditional milling methods. Finally, the fracture mechanism of the γ-TiAl alloys lamellae was revealed through microstructural analysis. The results indicate that IAM is a promising machining method that can significantly improve the machining performance and surface integrity of γ-TiAl alloys.

Experiences of Adult Educators in Selecting Appropriate Teaching Methods in Engineering Courses at TVET Colleges in Mpumalanga Province, South Africa

ABSTRACT This study’s sought to identify and fix problems with teaching strategies used in engineering courses at a TVET college in South Africa’s Mpumalanga area. A Phenomenological, explorative, and descriptive research approach was used to capture the experiences of educators in choosing effective teaching approaches. Convenience sampling was employed to select 10 educators who participated in two Focus Group Discussions in an endeavor to collect qualitative data. These discussions were conducted through the lenses of Albert Bandura’s social learning theory. Two audio recorders were used to capture the debates, thereafter verbatim transcribed. A computerized software called NVivo was used to do content analysis and theme analysis on the gathered data into manageable themes and sub-themes. Subsequently, the findings revealed the following five themes: preferred teaching methods, the effectiveness of teaching methods, the relationship between teaching methods and pass rate, assessing teaching and learning outcomes, and factors influencing adult learners’ performance: however, by the scope of this article only three were discussed in the forthcoming paragraphs. These themes demonstrated that some engineering educators struggle to choose the best teaching strategies which meet industrial skills requirement. Thus, the authors advise industry and TVET colleges to work together so that educators can teach adults the essential engineering skills.

Solar radiation powered biodiesel synthesis using C&D waste catalyst – a novel approach

A significant amount of construction and demolition waste is generated in India every year. The proper management of this waste has become a crucial concern due to fast urban growth, building projects, and increased construction work. The volume of this waste is substantial, which can harm the environment, deplete resources, and pose health risks if not handled well. This study presents an innovative method for biodiesel synthesis, addressing the challenges of construction and demolition (C&D) waste management and renewable energy integration. The research introduces a novel catalyst derived from C&D waste through a calcination process, offering an eco-friendly solution for waste repurposing. This catalyst demonstrates potential for sustainable biodiesel production, marking a significant advancement in waste management practices. Furthermore, a pioneering solar-powered reactor is utilized for biodiesel synthesis, achieving an impressive 92.2% conversion rate under specific conditions. The system's energy efficiency, calculated as [Formula: see text], surpasses conventional methods, highlighting its potential for reducing energy consumption and environmental impact. Moreover, the produced biodiesel meets ASTM D6751 standards, ensuring quality and compatibility with industry requirements.

Analysis of low saliency ratio and torque characteristics of the fractional slot concentrated winding surface mounted motors

In recent years, fractional slot concentrated winding permanent magnet synchronous motors (FSCW PMSMs) have become a hotspot in the research field. Due to the unique inductance characteristics of the FSCW PMSM, a fast and accurate calculation of the d/q-axis inductance and saliency ratio is necessary. In this paper, a method is proposed to calculate the d/q-axis reactance of the FSCW SPMSM, which constructs the equivalent magnetic circuit model of the d/q-axis armature reaction flux separately, and the saliency ratio characteristics of the FSCW SPMSM were demonstrated. In addition, to meet the high requirements of the modern industries, especially in servo systems, accurate consideration of the effect of stator resistance on torque and electromagnetic performance is important and more applicable. According to the relationship between the vector parameter, the explicit expression of the d/q-axis currents that consider the stator resistance is obtained, and the prediction of load angle at maximum electromagnetic torque is achieved. Then, combined with the finite element method, the influence mechanism of stator resistance on the motor steady-state performance is revealed. Finally, the experimental data are compared with the calculation data, and the correctness of the models and analysis was verified.

Seismic behavior of horizontally spliced single-side superposed shear wall using a concealed column

The single-side superposed (SSS) shear wall is an innovative precast concrete sandwich panel that better meets the requirements of building industrialization. However, the seismic behavior of SSS shear walls remains inadequately understood. In this paper, a full-scaled horizontally spliced SSS shear wall using a concealed column and an integral SSS shear wall of the same dimensions were tested. The seismic behavior was investigated considering various aspects including hysteresis performance, bearing capacity, ductility performance, energy dissipation capacity, and stiffness degradation curve. The simulation models were established by the Abaqus, which provided the verification and further research for the test. Furthermore, two innovative splicing forms were proposed to optimize the existing specimens through the Abaqus. The experimental results indicated that implementing the vertical joint would lead to a decrease in the yield-bearing capacity by 24%, but it would also enhance the ultimate bearing capacity by 12.7%. Meanwhile, the deformation capacity would improve by 9.7%. The numerical simulations demonstrated that the suggested splicing methods effectively meet the demands of building industrialization.

Research Progress on Novel Electrochemical Descaling Technology for Enhanced Hardness Ion Removal

In recent years, electrochemical descaling technology has gained widespread attention due to its environmental friendliness and ease of operation. However, its single-pass removal efficiency could be higher, severely limiting its practical application. To overcome the limitations of traditional electrochemical descaling processes, this paper first focuses on the separation efficiency of H+ and OH− in the scale removal process based on numerous recent research papers. It mainly emphasizes how innovative cathode design can enhance the efficiency and stability of electrochemical descaling. Furthermore, this paper explores the coupling of electrochemical processes with different water treatment technologies, such as the combination of electrodeposition with electrocoagulation, filtration crystallization, microfiltration, and electrodialysis, and how these methods synergistically enhance descaling effects. Additionally, this paper discusses potential future directions for electrochemical descaling technology, including innovations in scale expansion, material updates, process optimization, system integration, and automation. Finally, this paper analyzes the practical challenges of electrochemical descaling technology, such as cost, energy consumption, equipment durability, and environmental impact, and proposes solutions. The implementation of these strategies is expected to promote the commercialization of electrochemical descaling technology, making it more aligned with the sustainability requirements of industry and the environment.

A non-contact method for weighting of aggregate pile based on binocular vision

Concrete is indispensable in contemporary industry, and the weighing of aggregates directly determines the quality of concrete preparation. In response to the difficulty of traditional methods in meeting the industrial requirements for accuracy, efficiency, and cost of measurement, this paper proposes a non-contact bone pile weight measurement method based on binocular vision. Firstly, the on-site image is obtained through a binocular camera, and the camera parameters are used to improve the image edge information and preprocess the image. Then, the improved semi global matching (SGM) algorithm is used to improve computational efficiency, obtaining three-dimensional information of the aggregate pile for volume calculation. Based on the watershed algorithm and T-S inference, the aggregate clearance rate is calculated, and the initial volume is corrected. Finally, a linear relationship is established between the density of the aggregate pile and the clearance rate, and the weight of the aggregate pile can be obtained by the density formula. The experimental results on different sizes of aggregate piles shows that the average error of the experiment is less than 4%. Efficiency of improved SGM matching algorithm has increased several times compared to the original algorithm, providing a low-cost and efficient measurement method for industrial aggregate weighing.

Advances in the Stability of Catalysts for Electroreduction of CO2 to Formic Acid.

The electroreduction of CO2 to high-value products is a promising approach for achieving carbon neutrality. Among these products, formic acid stands out as having the most potential for industrialization due to its optimal economic value in terms of consumption and output. In recent years, the Faraday efficiency of formic acid from CO2 electroreduction has reached 90~100 %. However, this high selectivity cannot be maintained for extended periods under high currents to meet industrial requirements. This paper reviews excellent work from the perspective of catalyst stability, summarizing and discussing the performance of typical catalysts. Strategies for preparing stable and highly active catalysts are also briefly described. This review may offer a useful data reference and valuable guidance for the future design of long-stability catalysts.

Strategies for Improving Efficiency and Stability of Inverted Perovskite Solar Cells.

Perovskite solar cells (PSCs) have attracted widespread research and commercialization attention because of their high power conversion efficiency (PCE) and low fabrication cost. The long-term stability of PSCs should satisfy industrial requirements for photovoltaic devices. Inverted PSCs with a p-i-n architecture exhibit considerable advantages because of their excellent stability and competitive efficiency. The continuously broken-through PCE of inverted PSCs shows huge application potential. This review summarizes the developments and outlines the characteristics of inverted PSCs including charge transport layers (CTLs), perovskite compositions, and interfacial regulation strategies. The latest effective CTLs, interfacial modification, and stability promotion strategies especially under light, thermal, and bias conditions are emphatically analyzed. Furthermore, the applications of the inverted structure in high-efficiency and stable tandem, flexible photovoltaic devices, and modules and their main obstacles are systematically introduced. Finally, the remaining challenges faced by inverted devices are discussed, and several directions for advancing inverted PSCs are proposed according to their development status and industrialization requirements.

Regulatory requirement for Medical Devices

The safety and regulatory compliance of a widely used medical device have become a growing concern among a significant population. This has raised questions about the assessment of risks, monitoring of adverse drug reactions (ADR), and overall product safety. The efficacy and safety of such medical devices heavily rely on the regulations and guidelines set forth by regulatory agencies (RAs).
 In the pharmaceutical industry, regulatory affairs (RA) professionals play a crucial role in overseeing the lifecycle of healthcare products. They provide strategic, tactical, and operational guidance to ensure compliance with regulations, facilitating the efficient development and delivery of safe and effective healthcare products worldwide. Evaluating adherence to regulations requires a combination of expertise from the business, legal, and pharmaceutical domains.
 Regulatory authorities must thoroughly monitor medical device design, development, and manufacturing processes to guarantee that the products reaching the market are safe and effective. The certification process is intricate, involving multiple steps and the assessment of materials by competent authorities. In the United States, manufacturers must seek marketing authorization from the United States Food and Drug Administration (USFDA) through two primary application types: 510(k) and Pre-Market Application (PMA). In the European Union (EU), national authorities grant permission for the sale of medical devices, employing a third-party compliance system where notified bodies ensure quality assurance pre- and post-approval. In India, the Central Drug Standard Control Organization (CDSCO) licenses devices for sale and import under the CLAA framework.
 Conclusion
 Pharmaceutical regulatory affairs experts play a critical role in ensuring compliance with industry requirements for all pharmaceutical products. This review provides an overview of how medical devices are regulated and monitored in the EU, India, and the USA, emphasizing the importance of regulatory affairs in maintaining the safety and efficacy of healthcare products.

Analysis of the Problems and Approaches of High-Quality Development of Teachers

Due to the development of The Times and the change in social talent demand, social development has put forward higher requirements for the education industry. As the high-quality development of teachers is an important factor in the educational relationship, it will have an impact on the quality of the education industry and even the social development. This paper explores the concept of high-quality development of teacher quality, its significance, and its characteristics. Examining the requirements for achieving high-quality development, including external factors such as education system support and social environment, as well as internal factors such as teachers' cognitive thinking, professional level, and teaching ability. The study analyzes the influencing factors and recommends strategies for promoting high-quality development, such as government support and policies, environmental management and support, and teacher training and professional development. The paper emphasizes the importance of cultivating a culture of lifelong learning among teachers as a crucial factor in achieving high-quality development.

Insights into microstructural stability and embrittlement of TC25 high temperature titanium alloy subjected to thermal exposure

High temperature titanium alloys are being urgently developed owing to the requirements of advanced aerospace industry. Performance of the alloys in service under high-temperature environments always attracts great attention. In this study, variations of microstructure and mechanical property in TC25 (Ti-6.5Al-2Mo-1Zr-1Sn-1 W-0.2Si) dual-phase high temperature titanium alloy subjected to thermal exposure have been systematically investigated by coupling microstructural characterization, compositional analyses and mechanical measurement. It is found that strength is significantly enhanced while ductility is sharply degraded when the alloy is thermally exposed at 550 °C for a long duration of 100 h. Microstructural observations manifest that ternary α-needles (αt) are drastically precipitated from β-ligaments inside transformed β-matrix (βtrans) whilst α2 (Ti3Al)-phase is produced from primary α-phase (αp) through ordered transformation. The precipitation of αt-needles is promoted by β-phase metastability resulting from insufficient element partitioning in the initial microstructure. The β-phase stability also renders αt-precipitation encounter size effect of β-ligaments, where the precipitation is suppressed when β-ligaments are thin in size. Both precipitation of αt-needles and α2-phase triggers precipitation-hardening effect, which results in strain localization and thereby regresses alloy ductility. However, further analysis indicates that compared with α2-phase, αt-precipitation plays more adverse role in embrittlement in the current alloy. This is different from thermal-exposed behavior of most of high temperature titanium alloys reported in literatures. These findings enrich our fundamental understanding on thermal stability of high temperature titanium alloys, and provide plausible implication to improve high temperature performance via controlling phase precipitation.