Publications by authors named "Guo Jianhua"

Objective: To observe the clinical efficacy of vitamin B1 in patients with ICU-acquired weakness (ICU-AW).

Methods: A retrospective analysis was conducted to select ICU-AW patients treated with vitamin B1 in the intensive care unit (ICU) of Shanghai East Hospital, Tongji University from July 2022 to December 2023. Propensity score matching was used to match the control group and observation group at a 1 : 1 ratio, considering differences in patient age, gender, and acute physiology and chronic health evaluation II (APACHE II).

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The incidence and mortality rates of colorectal cancer have been steadily increasing, making it one of the most prevalent cancers globally. Although current chemotherapy drugs have shown some efficacy in treating this disease, their associated side effects necessitate the development of more effective treatments and medications. The clinical application of elemene is widely utilized in tumor treatment; however, its efficacy is hindered by the requirement for high dosage and suboptimal anticancer effects.

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As a greenhouse gas, massive carbon dioxide (CO) has been generated due to organic matter degradation in wastewater treatment processes. Microbial gas fermentation offers a promising approach to capture CO and generate various valuable chemicals. However, limited studies have achieved branched or medium-chain fatty acids production via gas fermentation.

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The accuracy of the control model is essential for the effectiveness of model-based control methods. However, factors such as model simplification, parameter variations, and environmental noise can introduce inaccuracies in vehicle state descriptions, thereby compromising the precision of path tracking. This study introduces data-driven enhancements for an MPC-based path tracking controller in autonomous vehicles (DD-PTC).

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As a newly discovered group of ammonia-oxidizing microorganisms, complete ammonia oxidizing (comammox) Nitrospira has been widely found in various oligotrophic ecosystems. However, their activity and ecological niche is still unclear in recirculating aquaculture systems (RAS). This study aimed to compare the abundance and activity of comammox Nitrospira, ammonia-oxidizing bacteria (AOB) and ammonia-oxidizing archaea (AOA), and elucidate metabolic versatility of comammox Nitrospira in RAS.

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Free-living amoebae (FLA) are prevalent in drinking water distribution networks (DWDNs), yet our understanding of FLA community dynamics and assembly mechanisms in DWDNs remains limited. This study characterized the occurrence patterns of amoeba communities and identified key factors influencing their assembly across four full-scale DWDNs in three Chinese cities, each utilizing different disinfectants (chlorine, chloramine, and chlorine dioxide). High-throughput sequencing of full-length 18S rRNA genes revealed highly diverse FLA communities and an array of rare FLA species in DWDNs.

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The cladding of fast reactor fuel rods, made of stainless steel, presents significant challenges in cutting due to its ductility, which leads to increased tool wear and poor cut quality with traditional mechanical methods. Laser cutting has emerged as a superior alternative, offering non-contact precision, high efficiency, and suitability for radioactive environments. This study systematically investigates the effects of laser cutting parameters-cutting speed, focal position, power, and gas pressure-on the cutting quality of simulated fast reactor fuel rods.

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Energy metabolic reprogramming is frequently observed during tumor progression as tumor cells necessitate adequate energy production for rapid proliferation. Although current medical research shows promising prospects in studying the characteristics of tumor energy metabolism and developing anti-tumor drugs targeting energy metabolism, there is a lack of systematic compendiums and comprehensive reviews in this field. The objective of this study is to conduct a systematic review on the characteristics of tumor cells' energy metabolism, with a specific focus on comparing abnormalities between tumor and normal cells, as well as summarizing potential targets for tumor therapy.

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Article Synopsis
  • Flue-curing and redrying are crucial steps in tobacco processing, affecting microbial activity that influences fermentation.
  • A study identified nearly 6,400 variations of fungi across different tobacco processing stages, highlighting dominant genera like Alternaria and Sampaiozyma.
  • The research reveals that major molds are enriched after flue-curing, showing that processing significantly alters fungal communities, which is important for mildew control during fermentation.
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Dissolved methane is a hurdle for anaerobic wastewater treatment, which would be stripped into the atmosphere by conventional bubble aeration and increase the release of greenhouse gases into the environment. The high oxygen transfer efficiency and less turbulence in membrane aerated biofilm reactor (MABR) could prevent the stripping of dissolved methane. In this study, an MABR was established to remove dissolved methane aerobically in parallel to the nitrogen removal driven by the anammox process.

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Anammox granular sludge (AnGS) serves as an important platform for cost-effective nitrogen removal from wastewater. Different to the traditionally sphere-like granules, a novel type of AnGS in a unique ellipsoid-like shape was obtained through enhancing shear force. The ellipsoid-like AnGS significantly exhibited a smaller aspect ratio (-25.

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Complete ammonia oxidation (comammox) bacteria have been detected in full-scale wastewater treatment plants. However, the slow growth rate limits the research and applications of comammox. Quorum sensing (QS) is an intercellular communication process to regulate microbial physiological metabolism, but its role in comammox Nitrospira has rarely been reported.

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The anaerobic oxidation of methane (AOM) carried out by anaerobic methanotrophic archaea (ANME) plays an important role in mitigating methane emissions from aqueous environments and has applications in bioremediation and wastewater treatment. Previous studies showed that AOM could be coupled to chromate reduction. However, the specific responsible microorganisms and the biochemical mechanisms are unclear.

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Nitrification and nitrifiers are pH-sensitive especially under the alkaline environment in the activated sludge system. However, it is unclear how nitrifiers and nitrification respond to long-term alkaline environment. This study employed a continuous flow membrane nitrification bioreactor to investigate the dynamics of nitrification efficiency and microbial community adaptation under a 320-day alkaline operation.

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Article Synopsis
  • The study addresses challenges in the partial nitritation-anammox process, notably the suppression of nitrite-oxidizing bacteria (NOB) and excessive nitrate in effluents.
  • A new system, called partitioned granular sludge coupled with membrane-aerated biofilm reactor (G-MABR), was developed to improve nitrogen removal efficiency, achieving 88.8 to 93.6% removal rates.
  • This configuration effectively reduced NOB through competitive substrate use, allowing better synergy between denitrifying and anammox bacteria, which enhanced the overall nitrite supply for effective nitrogen removal.
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Per- and poly-fluoroalkyl substances (PFAS) have gained widespread attention due to their adverse effects on health and environment. Developing efficient technology to capture PFAS from contaminated sources remains a great challenge. In this study, we introduce a type of reusable polymeric sorbent (PFPE-IEX + ) for rapid, efficient, and selective removal of multiple PFAS impurities from various contaminated water sources.

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Article Synopsis
  • Researchers explored how six metal ions (Ca, Mg, Ni, Zn, Al, and Sc) in water affect the oxidation behavior of permanganate (Mn(VII)) when removing organic pollutants.
  • These metal ions enhance Mn(VII)'s electron and oxygen transfer abilities while slowing down proton transfer, influenced by their Lewis acidity.
  • The study also found that relationships between Mn(VII) and metal ions change its properties and efficiency in breaking down phenolic pollutants, especially at certain pH levels, suggesting ways to improve water treatment processes.
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  • Sulfur quantum dots modified zero-valent iron (SQDs@ZVI) were developed to enhance the activation and efficiency of hydrogen peroxide (HO) in green chemical reactions by creating highly reactive Fe-S dual active sites.
  • This design improves the Fenton reactivity, facilitating better HO adsorption and breaking down peroxyl bonds to produce hydroxyl radicals (OH), which are effective for degrading various organic pollutants.
  • The SQDs@ZVI showed impressive durability in a Fenton filter for up to 200 hours and holds promise for practical water decontamination applications by optimizing the selective activation of HO.
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This paper investigates the structure and aggregation stability of acrylic acid-acrylamide-diethyldiallylammonium chloride (FA367), followed by an investigation into the impact of acidic CO environments on the interaction between FA367 and cement slurry. The results showed that FA367 formed stable flocculation in cement slurry filtrate, which was not affected by acid gas CO. With an FA367 concentration of 0.

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Although granular floatation has been recognized as a significant issue hindering the application of high-rate anammox biotechnology, limited knowledge is available about its causes and control strategies. This study proposed a novel control strategy by adding folate, and demonstrated its role in the granular floatation alleviation through long-term operation and granular characterizations. It was found that the floatation of anammox granular sludge was obviously relieved with the decreased sludge floatation potential by 67.

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Distributed drive electric vehicles improve steering response and enhance overall vehicle stability by independently controlling each motor. This paper introduces a control framework based on Adaptive Model Predictive Control (AMPC) for coordinating handling stability, consisting of three layers: the dynamic supervision layer, online optimization layer, and low-level control layer. The dynamic supervision layer considers the yaw rate and maneuverability limits when establishing the β-β˙ phase plane stability boundary and designs variable weight factors based on this stability boundary.

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Prophages are prevalent among bacterial species, including strains carrying antibiotic resistance genes (ARGs). Prophage induction can be triggered by the SOS response to stressors, leading to cell lysis. In environments polluted by chemical stressors, ARGs and prophage co-harboring strains might pose an unknown risk of spreading ARGs through chemical pollutant-mediated prophage induction and subsequent cell lysis.

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Short-term energy-consumption prediction is the basis of anomaly detection, real-time scheduling, and energy-saving control in manufacturing systems. Most existing methods focus on single-node energy-consumption prediction and suffer from difficult parameter collection and modelling. Although several methods have been presented for multinode energy-consumption prediction, their prediction performance needs to be improved owing to a lack of appropriate knowledge guidance and learning networks for complex spatiotemporal relationships.

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Providing safe, smooth, and efficient trajectories for autonomous vehicles has long been a question of great interest in the field of autopiloting. In dynamic and ever-changing urban environments, safe and efficient trajectory planning is fundamental to achieving autonomous driving. Nevertheless, the complexity of environments with multiple constraints poses challenges for trajectory planning.

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Article Synopsis
  • Multiple studies have observed the link between methane oxidation and perchlorate reduction, but the microbial mechanisms involved are still not fully understood.
  • Researchers enriched cultures in a membrane bioreactor under oxygen-limited conditions, discovering that the reduction of perchlorate is coupled with methane oxidation, with acetate playing a key role and oxygen activating methane.
  • High-throughput sequencing revealed that aerobic methanotrophs and perchlorate-reducing bacteria work together, where methanotrophs produce acetate to aid perchlorate reduction, enhancing our understanding of these microbial interactions in biogeochemical cycles.
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