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Processes, Volume 11, Issue 6

2023 June - 278 articles

Cover Story: The synthesis of pentyl acetate from acetic acid and pentan-1-ol was studied using the commercial immobilized lipase Lipozyme®435 as a catalyst. The effects of some variables on the kinetics of the reaction were analysed, such as the initial concentration of acetic acid, the alcohol/acid molar ratio and the possible reuse of the enzyme. The kinetics data were determined by evaluating the existing acetic acid concentration during the established reaction time. The reactive process was in agreement with the so-called Bi-Bi Ping-Pong mechanism for enzymatic esterification, the most suitable modeling of which was achieved by performing an extension (considering the enzyme denaturation) of an initial simpler version of the model, which was also used. Comparison confirmed the improvement. View this paper
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Articles (278)

  • Article
  • Open Access
5 Citations
2,640 Views
25 Pages

20 June 2023

Volumetric expanders are proven to be more suitable for small-scale waste heat recovery applications because of their simplicity, reliability, lower rotational speed and lower cost. Unlike turbines, volumetric expanders can work in the two-phase flui...

  • Feature Paper
  • Article
  • Open Access
14 Citations
2,630 Views
16 Pages

20 June 2023

Microchannel cooling technology is an effective method to solve local thermal stacking. In this paper, four innovative microchannels with bionic fish-shaped rib arrangements (CM-O, CM-R, CM-H, and CM-G) are designed by imitating geese and fish cluste...

  • Article
  • Open Access
5 Citations
3,394 Views
15 Pages

Synthesis and Biological Evaluation of α-Tocopherol Derivatives as Potential Anticancer Agents

  • Aneta Baj,
  • Lucie Rárová,
  • Artur Ratkiewicz,
  • Miroslav Strnad and
  • Stanislaw Witkowski

20 June 2023

α-Tocopheryl succinate (α-TS) and α-tocopheryloxyacetic acid (α-TEA) are potent inducers of apoptosis in cancer cells and efficient suppressors of tumors in experimental model cancer cell lines. They exhibit selective cytotoxi...

  • Article
  • Open Access
4 Citations
1,758 Views
15 Pages

20 June 2023

In this paper, we studied the feedback stabilization of an inductive power transfer system based on available output measurement. The proposed controller relies on a full-order state observer in order to estimate the unmeasured state. The control des...

  • Article
  • Open Access
2 Citations
1,497 Views
18 Pages

20 June 2023

A microchannel heat exchanger effectively evacuates heat from a confined space. This paper attempts to gain insight into the combinatorial repercussions of simultaneously coupling two factors that affect a microchannel’s performance, of which c...

  • Article
  • Open Access
27 Citations
3,294 Views
22 Pages

Novel Copper Oxide Phyto-Nanocatalyst Utilized for the Synthesis of Sustainable Biodiesel from Citrullus colocynthis Seed Oil

  • Aqsa Aziz,
  • Mushtaq Ahmad,
  • Muhammad Zafar,
  • Abdel-Rhman Z. Gaafar,
  • Mohamed S. Hodhod,
  • Shazia Sultana,
  • Mohammad Athar,
  • Fethi Ahmet Ozdemir,
  • Trobjon Makhkamov and
  • Bisha Chaudhay
  • + 4 authors

20 June 2023

The green chemistry method for nanocatalyst synthesis along with environmentally feasible non-edible sources are promising alternatives to fossil fuels. The current study focuses on the synthesis of copper oxide phyto-nanocatalyst and the identificat...

  • Article
  • Open Access
2 Citations
2,088 Views
17 Pages

Temperature–Electrokinetic Co-Driven Perfluorooctane Sulfonic Acid (PFOS) Adsorption on Geo-Adsorbents

  • Yuzhou Yin,
  • Yongping Shan,
  • Dong Ma,
  • Liuqing Yang,
  • Mingxiu Zhan,
  • Ping Liu,
  • Benzhen Lou,
  • Bo Zhang,
  • Wentao Jiao and
  • Lichu Yin

20 June 2023

Per- and polyfluoroalkyl substances (PFAS) have concerned the public due to their worldwide distribution and the threat they pose to drinking water safety and human health. Temperature and DC field-induced electroosmotic flow (EOF) are powerful tools...

  • Article
  • Open Access
4 Citations
3,228 Views
25 Pages

A Feasibility Study on the Use of Injection Molding Systems for Mass Production of 100W Class Wind Turbine Blades

  • Joongseon Kim,
  • Upendra Tuladhar,
  • Deokkeun Je,
  • Marinus Mieremet,
  • Joonho Baek,
  • Hoseong Ji and
  • Seokyoung Ahn

20 June 2023

A feasibility study on the mass production of a small wind turbine blade using an injection molding process was conducted. The blade was divided into three sections suitable for injection molding, and the mold was designed and analyzed using Moldflow...

  • Article
  • Open Access
4 Citations
2,622 Views
15 Pages

Comparison and Analysis of Several Quantitative Identification Models of Pesticide Residues Based on Quick Detection Paperboard

  • Yao Zhang,
  • Qifu Zheng,
  • Xiaobin Chen,
  • Yingyi Guan,
  • Jingbo Dai,
  • Min Zhang,
  • Yunyuan Dong and
  • Haodong Tang

20 June 2023

Pesticide residues have long been a significant aspect of food safety, which has always been a major social concern. This study presents research and analysis on the identification of pesticide residue fast detection cards based on the enzyme inhibit...

  • Review
  • Open Access
129 Citations
29,901 Views
58 Pages

A Review of Third Generation Solar Cells

  • N. Shah,
  • A. A. Shah,
  • P. K. Leung,
  • S. Khan,
  • K. Sun,
  • X. Zhu and
  • Q. Liao

20 June 2023

Third-generation solar cells are designed to achieve high power-conversion efficiency while being low-cost to produce. These solar cells have the ability to surpass the Shockley–Queisser limit. This review focuses on different types of third-ge...

  • Article
  • Open Access
2 Citations
2,238 Views
13 Pages

Optimization Design of an Intermediate Fluid Thermoelectric Generator for Exhaust Waste Heat Recovery

  • Wei Zhang,
  • Wenjie Li,
  • Shuqian Li,
  • Liyao Xie,
  • Minghui Ge and
  • Yulong Zhao

20 June 2023

The intermediate fluid thermoelectric generator (IFTEG) represents a novel approach to power generation, predicated upon the principles of gravity heat pipe technology. Its key advantages include high-power output and a compact module area. The gener...

  • Article
  • Open Access
4 Citations
5,029 Views
23 Pages

Comparative Analysis of Paddy Harvesting Systems toward Low-Carbon Mechanization in the Future: A Case Study in Sri Lanka

  • P. D. Kahandage,
  • S. D. S. Piyathissa,
  • Reza Ariesca,
  • Namgay,
  • Riaru Ishizaki,
  • E. J. Kosgollegedara,
  • G. V. T. V. Weerasooriya,
  • Tofael Ahamed and
  • Ryozo Noguchi

19 June 2023

In this study, three paddy harvesting systems, manual harvesting of paddy (MHP), reaper harvesting of paddy (RHP), and combine harvesting of paddy (CHP), were evaluated considering field capacities, field efficiencies, time and fuel consumption, mech...

  • Feature Paper
  • Article
  • Open Access
10 Citations
2,839 Views
23 Pages

Operating and Thermal Efficiency Boundary Expansion of Argon Power Cycle Hydrogen Engine

  • Weiqi Ding,
  • Jun Deng,
  • Chenxu Wang,
  • Renjie Deng,
  • Hao Yang,
  • Yongjian Tang,
  • Zhe Ma and
  • Liguang Li

19 June 2023

The efficiency enhancement of argon power cycle engines through theoretical means has been substantiated. However, the escalation of in-cylinder temperatures engenders abnormal combustion phenomena, impeding the augmentation of compression ratios and...

  • Feature Paper
  • Review
  • Open Access
16 Citations
3,138 Views
30 Pages

Existing Stature and Possible Outlook of Renewable Power in Comprehensive Electricity Market

  • Shreya Shree Das,
  • Jayendra Kumar,
  • Subhojit Dawn and
  • Ferdinando Salata

19 June 2023

The massive growth in power demand and the sharp decay in the availability of conventional energy sources forces society to move toward renewable power consumption. The rise in renewable energy utilization is one of the greatest strategies involved i...

  • Feature Paper
  • Article
  • Open Access
36 Citations
5,545 Views
12 Pages

19 June 2023

Consumption of photovoltaic solar panels is expected to increase, so the growing amount of end-of-life (EOL) solar panels will require large spaces for their disposal, which at the moment costs around 200 euros/ton. Thus, a proper treatment technique...

  • Article
  • Open Access
1 Citations
2,083 Views
13 Pages

Development of a Continuous Process Chain for Selective Recovery and Purification of Rare Metals

  • Timo Dobler,
  • Simon Buchheiser,
  • Thomas Gaschler,
  • Stefan Platzk,
  • Harald Kruggel-Emden,
  • Hermann Nirschl and
  • Marco Gleiß

19 June 2023

Solar cells, liquid crystal displays (LCDs) and light-emitting diodes (LEDs) have become more and more important in recent decades. Crucial components of such electronic devices include rare metals (e.g., indium and gallium), which are only available...

  • Article
  • Open Access
9 Citations
3,295 Views
14 Pages

Experimental Investigation and CFD Simulation of Cryogenic Condenser

  • Seyedsajjad Jazayeri,
  • Afham Pourahmad,
  • Seyyed Amirreza Abdollahi,
  • Amin. Hassanvand,
  • Falah Alobaid and
  • Babak Aghel

19 June 2023

In this research, experimental investigation and the computational fluid dynamic (CFD) simulation of a cryogenic condenser for oxygen liquefaction was carried out. The liquid nitrogen was used as a cooling fluid. In the simulation section, a three-di...

  • Article
  • Open Access
6 Citations
2,489 Views
11 Pages

Scheduling Jobs with a Limited Waiting Time Constraint on a Hybrid Flowshop

  • Sang-Oh Shim,
  • BongJoo Jeong,
  • June-Yong Bang and
  • JeongMin Park

19 June 2023

In this paper, we address a two-stage hybrid flowshop scheduling problem with identical parallel machines in each stage. The problem assumes that the queue (Q)-time for each job, which represents the waiting time to be processed in the current stage,...

  • Article
  • Open Access
9 Citations
2,457 Views
20 Pages

19 June 2023

This paper proposes a two-stage planning model for soft open point (SOP) and energy storage system (ESS) that considers the cost of faults in response to the current issue of SOP and ESS systems not considering the impact of SOP access on load transf...

  • Article
  • Open Access
2 Citations
1,626 Views
20 Pages

19 June 2023

Heat integration by a heat exchanger network (HEN) is an important topic in chemical process system synthesis. From the perspective of optimization, the simultaneous synthesis of HEN belongs to a mixed-integer and nonlinear programming problem. Both...

  • Article
  • Open Access
2 Citations
1,782 Views
15 Pages

19 June 2023

In order to address the challenges associated with free lipase in organic solvents, including aggregation, poor stability, and low catalytic efficiency, this study developed two types of poly(o-phenylenediamine) microspheres (solid and hollow) as sup...

  • Article
  • Open Access
30 Citations
5,994 Views
27 Pages

19 June 2023

Path planning and tracking control are essential parts of autonomous vehicle research. Regarding path planning, the Rapid Exploration Random Tree Star (RRT*) algorithm has attracted much attention due to its completeness. However, the algorithm still...

  • Review
  • Open Access
16 Citations
6,907 Views
12 Pages

Use of Potential Immobilized Enzymes for the Modification of Liquid Foods in the Food Industry

  • Ernestina Garcia-Quinto,
  • Raquel Aranda-Cañada,
  • Paz García-García and
  • Gloria Fernández-Lorente

19 June 2023

Enzymes are complex proteins that carry out biochemical reactions. Apart from being necessary for life, they are used in numerous industrial processes, especially in the textile, pharmaceutical, food and chemical sectors. One of the longest-lived ind...

  • Feature Paper
  • Article
  • Open Access
7 Citations
2,937 Views
16 Pages

19 June 2023

Successful matrix acidizing for extremely thick carbonate reservoirs with long horizontal well sections and strong heterogeneity requires efficient temporary plugging and diverting of acid fluid, ensuring acid fluid distribution to each production la...

  • Article
  • Open Access
7 Citations
2,713 Views
19 Pages

Improved Active Islanding Detection Technique with Different Current Injection Waveform

  • Shaoru Zhang,
  • Lijun Wang,
  • Xiuju Du,
  • Ruiye Zhang,
  • Zhanping Huang,
  • Shuchun Duan,
  • Wenxiu Yang,
  • Pingjun Wang and
  • Jielu Zhang

18 June 2023

The active frequency drift (AFD) method is an effective method to detect islanding in grid-connected photovoltaic systems. However, it has some inherent drawbacks, such as generating higher harmonics. In order to reduce the harmonics and non-detectio...

  • Article
  • Open Access
12 Citations
3,644 Views
18 Pages

Synthesis, Molecular Docking, Molecular Dynamics Studies, and In Vitro Biological Evaluation of New Biofunctional Ketoprofen Derivatives with Different N-Containing Heterocycles

  • Stanimir Manolov,
  • Dimitar Bojilov,
  • Iliyan Ivanov,
  • Gabriel Marc,
  • Nadezhda Bataklieva,
  • Smaranda Oniga,
  • Ovidiu Oniga and
  • Paraskev Nedialkov

17 June 2023

Herein, we report the synthesis of four new hybrid molecules between ketoprofen or 2-(3-benzoylphenyl)propanoic acid and N-containing heterocyclic compounds, such as piperidine, pyrrolidine, 1,2,3,4-tetrahydroquinoline, and 1,2,3,4-tetrahydroisoquino...

  • Article
  • Open Access
10 Citations
3,652 Views
13 Pages

Development of Tea Tree Oil Based Nanoemulgel Loaded with Azithromycin for Enhancing the Antibacterial Activity

  • Nasrin E. Khalifa,
  • Marwa H. Abdallah,
  • Hanaa A. Elghamry,
  • Weam M. A. Khojali,
  • El-Sayed Khafagy,
  • Hemat El-Sayed El-Horany and
  • Seham Shawky

17 June 2023

Azithromycin (AZ) is an azalide macrolide antibiotic that is frequently employed for treating bacterial skin infections. It suffers from limited oral bioavailability, which results from incomplete absorption or extensive first-pass metabolism. Theref...

  • Feature Paper
  • Article
  • Open Access
1,717 Views
15 Pages

Optimal Control of Technological Processes

  • Anatoliy M. Tsirlin and
  • Alexander I. Balunov

16 June 2023

The paper formulates conditions under which the roots closest to the imaginary axis (critical roots) of the characteristic equation of a linearized system are real for the maximum possible degree of stability of the closed-loop control system of a te...

  • Article
  • Open Access
3,199 Views
14 Pages

16 June 2023

Biomass burning is an important source of brown carbon (BrC) which poses high-risk threats to human health and the environment. In this study, bio-coal briquette (coal mixed with biomass), a promising solid fuel for residential combustion, is proven...

  • Article
  • Open Access
7 Citations
2,008 Views
22 Pages

16 June 2023

Fractured-vuggy reservoirs are a new target in carbonate oil and gas exploration and development. Because of well-developed reservoir bodies, including fractures and caverns, bottom water invasion can be observed in oilfield development, with low uti...

  • Feature Paper
  • Review
  • Open Access
34 Citations
7,474 Views
34 Pages

Latest Advances in Thermal Energy Storage for Solar Plants

  • Martina Barrasso,
  • Giuseppe Langella,
  • Amedeo Amoresano and
  • Paolo Iodice

16 June 2023

To address the growing problem of pollution and global warming, it is necessary to steer the development of innovative technologies towards systems with minimal carbon dioxide production. Thermal storage plays a crucial role in solar systems as it br...

  • Article
  • Open Access
10 Citations
2,905 Views
17 Pages

16 June 2023

Pressure control while minimizing the mass loss of liquid hydrogen is one of the key technologies required for the long-term storage of cryogenic propellants in microgravity in space, and the use of a thermodynamic venting system (TVS) has been consi...

  • Article
  • Open Access
7 Citations
2,392 Views
16 Pages

The Application of Photovoltaic-Electric Spring Technology to Rural Power Grids

  • Zhibin Cui,
  • Junsheng Shi,
  • Guangpeng Li,
  • Zihan Yuan,
  • Dehua Zang and
  • Lidi Wang

16 June 2023

Rural power grids are essential for rural development, impacting the lives of farmers, the agricultural economy, and the overall efficiency of agricultural production. To ensure the reliable operation of these grids, finding ways to provide high-qual...

  • Article
  • Open Access
7 Citations
3,358 Views
18 Pages

16 June 2023

It is essential to use highly antigenic epitope areas, since the development of peptide vaccines heavily relies on the precise design of epitope regions that can elicit a strong immune response. Choosing epitope regions experimentally for the product...

  • Article
  • Open Access
18 Citations
5,935 Views
17 Pages

Effect of Freeze–Thaw Cycles on Physicochemical and Functional Properties of Ginger Starch

  • Yu-Ching Wang,
  • Ya-Ching Liang,
  • Fu-Long Huang and
  • Wen-Chang Chang

15 June 2023

Ginger (Zingiber officinale Roscoe.) starch is a waste product generated during the extraction of bioactive compounds from ginger. This study aimed to treat ginger starch with different freeze–thaw cycles and explore the effect on the functiona...

  • Article
  • Open Access
14 Citations
2,298 Views
28 Pages

15 June 2023

A dynamic reconfiguration method based on the improved multi-objective dung beetle optimizer (IMODBO) is proposed to reduce the operating cost of the distribution network with distributed generation (DG) and ensure the quality of the power supply, wh...

  • Article
  • Open Access
4 Citations
2,309 Views
24 Pages

15 June 2023

By addressing the flexible job shop scheduling problem (FJSP), this paper proposes a new type of algorithm for the FJSP. We named it the hybrid coronavirus population immunity optimization algorithm. Based on the characteristics of the problem, first...

  • Article
  • Open Access
2 Citations
1,896 Views
27 Pages

15 June 2023

The Renovation Wave for Europe initiative aspires to materialize the progressive greening of 85–95% of the continental older building stock as part of the European Green Deal objectives to reduce emissions and energy use. To realistically predict the...

  • Article
  • Open Access
5 Citations
1,816 Views
23 Pages

15 June 2023

In order to improve the combined exploitation efficiency of horizontal and vertical wells, and given the fact that the complex and varied spatial structure of sand bodies in the Fuyu oil layer in the Qian’an area of Songliao Basin leads to sign...

  • Article
  • Open Access
1,335 Views
15 Pages

15 June 2023

Energy intensity is an important assessment indicator of energy consumption. Unfortunately, the traditional energy intensity model (TEIM) has obvious limitations when applied to quasi- continuous production process, especially for small time scales (...

  • Article
  • Open Access
6 Citations
2,128 Views
17 Pages

15 June 2023

Accurately predicting the surface finish of fused deposition modeling (FDM) parts is an important task for the engineering application of FDM technology. So far, many prediction models have been proposed by establishing a mapping relationship between...

  • Article
  • Open Access
7 Citations
2,374 Views
18 Pages

15 June 2023

In order to study the effect of freezing and thawing of liquid nitrogen on the mechanical and seepage characteristics of coal rock with different water content values, conventional triaxial loading tests on freeze–thawed coal samples with diffe...

  • Article
  • Open Access
2 Citations
2,762 Views
13 Pages

CFD Simulation on Pressure Profile for Direct Contact Condensation of Steam Jet in a Narrow Pipe

  • Xianbing Chen,
  • Liwei Fang,
  • Shouyi Jiao,
  • Jingzhi Zhang,
  • Leitai Shi,
  • Bangming Li and
  • Linghong Tang

15 June 2023

In the published experimental results, it has been observed that when high-speed steam spurt into the subcooled waterflow, the total pressure along the axial direction at trailing edge of the steam plume shows a pressure-lift. To reveal the mechanism...

  • Feature Paper
  • Article
  • Open Access
3 Citations
1,797 Views
20 Pages

Reclamation Potential of Onsite Wastewater Post-Treatment with Microalgae: Chemical Elements Perspective

  • Dobril Valchev,
  • Irina Ribarova,
  • Blagoy Uzunov,
  • Maya Stoyneva-Gärtner and
  • Valentina Lyubomirova

15 June 2023

Algae-based wastewater treatment is a promising technology with various applications for excess biomass such as biofertilizer production or valuable elements extraction. The benefits of the technology have been discussed for larger wastewater treatme...

  • Article
  • Open Access
7 Citations
2,072 Views
27 Pages

15 June 2023

To analyze the influence of liquid-nitrogen cooling on the damage and failure of high-temperature granite, granite samples were heated to 150~600 °C for natural cooling and liquid-nitrogen cooling treatment. Brazilian splitting tests were carried...

  • Article
  • Open Access
6 Citations
8,627 Views
16 Pages

15 June 2023

Menaquinone-7 (MK-7) provides significant health gains due to its excellent pharmacokinetic properties. However, MK-7 occurs at low concentrations in mainstream foods, heightening the demand for nutritional supplements. MK-7 exists as geometric isome...

  • Review
  • Open Access
13 Citations
10,590 Views
19 Pages

A Review of the Efficiency Improvement of Hydraulic Turbines in Energy Recovery

  • Yunguang Ji,
  • Hao Song,
  • Zhanpu Xue,
  • Ze Li,
  • Mingda Tong and
  • Hongtao Li

14 June 2023

Turbine energy recovery is a process energy saving technology, and understanding turbine efficiency has important operational and economic benefits for the operator of a power plant. There are three main areas of research into turbine energy efficien...

  • Article
  • Open Access
4 Citations
2,392 Views
23 Pages

Research on Passive Design Strategies for Low-Carbon Substations in Different Climate Zones

  • Shuizhong Zhao,
  • Jiangfeng Si,
  • Gang Chen,
  • Hong Shi,
  • Yusong Lei,
  • Zhaoyang Xu and
  • Liu Yang

14 June 2023

In the energy-saving design of substations, the building envelope thermal parameters, window-to-wall ratio, and shape factor are three crucial influencing factors. They not only affect the building’s appearance but also have an important impact...

  • Article
  • Open Access
11 Citations
1,811 Views
21 Pages

Developing a Hybrid Algorithm Based on an Equilibrium Optimizer and an Improved Backpropagation Neural Network for Fault Warning

  • Jiang Liu,
  • Changshu Zhan,
  • Haiyang Wang,
  • Xingqin Zhang,
  • Xichao Liang,
  • Shuangqing Zheng,
  • Zhou Meng and
  • Guishan Zhou

14 June 2023

In today’s rapidly evolving manufacturing landscape with the advent of intelligent technologies, ensuring smooth equipment operation and fostering stable business growth rely heavily on accurate early fault detection and timely maintenance. Mac...

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Processes - ISSN 2227-9717