mlsa-iai-msu-lab/ru_sci_bench_zho_cite_reranking huggingface dataset:
Experimental and numerical investigation of mechanical behavior of plain woven CFRP composites subjected to three-point bending

The mechanical behavior of plain woven Carbon Fiber-Reinforced Polymer (CFRP) composites under Three-Point Bending (TPB) is investigated via experimental and numerical approaches. Multiscale models, including microscale, mesoscale and macroscale models, have been developed to characterize the TPB strength and damages. Thereinto, Representative Volume Elements (RVEs) of the microscale and mesoscale structures are established to determine the effective properties of carbon-fiber yarn and CFRP composites, respectively. Aimed at accurately and efficiently predicting the TPB behavior, an Equivalent Cross-Ply Laminate (ECPL) cell is proposed to simplify the inherent woven architecture, and the effective properties of the subcell are computed using a local homogenization approach. The macroscale model of the TPB specimen is constructed by a topology structure of ECPL cells to predict the mechanical behavior. The TPB experiments have been performed to validate the multiscale models. Both the experimental and numerical results reveal that delamination mainly appears in the top and bottom interfaces of the CFRP laminates. And matrix cracking and delamination are identified as the significant damage modes during the TPB process. Finally, the quasi-static and dynamic behaviors of plain woven composites are discussed by comparing the results of Low-Velocity Impact (LVI) and TPB simulations.
Climatic effects on soil organic nitrogen fractions and amino acid chirality in paddy soils

Soil organic nitrogen (ON) accounts for more than 90% of the total nitrogen (TN) in paddy soils. Inadequate understanding of the different ON fractions in paddy soils and their corresponding bioavailability under different climatic conditions has constrained the development of appropriate nutrient management strategies for rice production. In this study, we applied a modified Bremner method coupled with high-performance liquid chromatography to characterize how soil ON fractions and amino acid chirality varied under different climatic conditions at five typical rice production sites along a latitudinal gradient. According to the results, climate had no obvious influence on TN, nitrogen (N) form, and individual amino acid contents. However, the proportions of various N forms in TN had linear relationships with annual mean temperature (AMT), with high correlation coefficient (r) values. Amino acid components also exhibited similar trends, with r as high as 0.85. Most notably, consistent linear relationships were observed between the D/L ratios of several amino acids and AMT in paddy soils (r = 0.18-0.92). Findings of this study provide insights into ON and amino acid dynamics in paddy soil systems under intensive production along climate gradients.
Mechanism, Kinetics, and Thermodynamic Characteristics for the Demetallization of Used Lubricating Oil via Pyrolysis

This study analyzed the pyrolysis mechanism, developed a pyrolysis kinetic model, and determined the corresponding thermodynamic parameters for the removal of calcium from used lubricating oil using sulfurized calcium alkyl phenolate(T-115B)as a model compound. The pyrolysis process and products were evaluated by Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy. Visual inspection indicated that the removal of calcium from T-115B depended primarily on the destruction of micelles caused by the pyrolysis of compounds at high temperatures. The pyrolysis characteristics of T-115B at different heating rates were investigated by thermogravimetry and differential thermal analysis, which revealed two distinct pyrolysis phases. Thus, the pyrolysis mechanism can be described by a twostep model. The activation energy and thermodynamic parameters(ΔH, ΔG, and ΔS)were determined by applying the Kissinger-Akahira-Sunose, Flynn-Wall-Ozawa, Friedman, and Starink methods;the average activation energies for T-115B pyrolysis obtained using these methods were 115.80, 119.84, 124.96, and 116.14 kJ/mol, respectively. Further, both stages of the pyrolysis reaction followed F_n mechanisms with n = 1.39 in the first stage and n = 0.86 in the second stage. This study provides reliable and effective pyrolysis models along with kinetic and thermodynamic parameters to facilitate the largescale industrial application of used lubricating oil.
Frictional sliding of infilled planar granite fracture under oscillating normal stress

This paper investigates the frictional behavior of the infilled rock fracture under dynamic normal stress.A series of direct shear tests were conducted on saw-cut granite fractures infilled with quartz using a selfdeveloped dynamic shear apparatus,and the effects of normal load oscillation amplitude,normal load oscillation period and sliding velocity were studied.The test results reveal that the shear response can be divided into three stages over a whole loading-unloading process,characterized by different time spans and stress variations.Generally,a smaller oscillation amplitude,a longer oscillation period and a fast shear velocity promote the stability of the friction system,which is also confirmed by the Coulomb failure criterion calculated based on the observed periodic apparent friction coefficient.The dynamic strengthening/weakening phenomenon is dependent on the oscillation amplitude and product of sliding velocity and oscillation period (vT).Also,the rate and state friction law incorporating the parameter α that characterizes the normal stress variation is employed to describe the dynamic friction coefficient but exhibits an incompetent performance when handling intensive variation in normal stress.Finally,the potential seismicity induced by oscillating normal stress based on the observed stress drop is analyzed.This work helps us understand the sliding process and stability evolution of natural faults,and its benefits for relative hazard mitigation.
Development of a Bias Compensating Q-Learning Controller for a Multi-Zone HVAC Facility

We present the development of a bias compensating reinforcement learning (RL) algorithm that optimizes thermal comfort (by minimizing tracking error) and control utilization (by penalizing setpoint deviations) in a multi-zone heating, ventilation, and air-conditioning (HVAC) lab facility subject to unmeasurable disturbances and unknown dynamics. It is shown that the presence of unmeasurable disturbance results in an inconsistent learning equation in traditional RL controllers leading to parameter estimation bias (even with integral action support), and in the extreme case, the divergence of the learning algorithm. We demonstrate this issue by applying the popular Q-learning algorithm to linear quadratic regulation (LQR) of a multi-zone HVAC environment and showing that, even with integral support, the algorithm exhibits bias issue during the learning phase when the HVAC disturbance is unmeasurable due to unknown heat gains, occupancy variations, light sources, and outside weather changes. To address this difficulty, we present a bias compensating learning equation that learns a lumped bias term as a result of disturbances (and possibly other sources) in conjunction with the optimal control parameters. Experimental results show that the proposed scheme not only recovers the bias-free optimal control parameters but it does so without explicitly learning the dynamic model or estimating the disturbances, demonstrating the effectiveness of the algorithm in addressing the above challenges.
以低促性腺激素性性腺功能减退为首发表现的遗传性血色病1例报告

综上所述,HH初期临床症状不典型,易误诊和漏诊,特别是Ⅱ型HH,其病情进展快,病死率高。通常以性腺功能减退为首发症状,起病较隐匿。对于性腺功能减退、肝功能异常的患者,除完成常见原因的检查外,需进一步筛查遗传代谢性疾病,完善血清铁、铁蛋白等检查,尤其关注肝脏、胰腺、垂体的CT和MRI表现,必要时应进行肝穿刺病理组织学检查或/和基因测序,早期诊断和治疗,延缓病情进展及改善预后。
Ethnic differences in the association of hypertension duration with cardiovascular diseases risk in Chinese adults

To the Editor:The relationship between hypertension duration and the risk of cardiovascular diseases (CVDs) has received considerable attention in recent years.Acohort study based on 246,459 Korean adults found a linear dose-response relationship between hypertension duration and stroke.Another cohort study involving 15,472 White and 10,298 Black adults found that the hypertension duration-heart failure relationship was stronger for people with longer hypertension duration,and there was no evidence of race on the relationship.Notably,prospective data from 39,774 coal workers in Chinese Han suggested that the risk of CVDs and stroke increased with increasing hypertension duration,but no associations of CVDs and stroke with myocardial infarction were found.Importantly,to our knowledge,it remains unclear whether ethnicity differentially affects the associations between hypertension duration and CVDs in Chinese individuals.
Enhancing the Intermolecular Interactions of Ladder-Type Heteroheptacene-Based Nonfullerene Acceptors for Efficient Polymer Solar Cells by Incorporating Asymmetric Side Chains

Asymmetric nonfullerene acceptors (NFAs) possess larger dipole moments and stronger intermolecular bonding energy than their symmetric counterparts thereby making them promising candidates for high-performance polymer solar cells (PSCs). Herein, wereport twoefficient acceptor-donor-acceptor (A-D-A) type NFAs (M14 and M18) with asymmetric side chains that show enhanced intermolecular interactions compared with their corresponding counterparts (M17 and M19) based on symmetric side chains. Furthermore, M14 and M18 exhibit elevated lowest unoccupiedmolecular orbitals and smaller π-π stacking distances in comparison with M17 and M19, respectively. In combination with the benchmark polymer donor of PM6, the PM6:M14 blend affords superior charge transport properties, and more importantly, an increased power conversion efficiency (PCE) of 15.49% in comparison with the M17-based counterpart (13.01% PCE). Similarly, the asymmetric M18-based blend also shows a higher PCE of 13.00% than the M19-based blend (11.55%). Through further interface engineering, the bestperforming M14-based device delivers an enhanced PCE of 16.46%, which represents a record value among all asymmetric A-D-A type NFAs. Our results provide new insights into the design of asymmetric NFAs with enhanced intermolecular interactions for highperformance PSCs.
An n-Type All-Fused-Ring Molecule with Narrow Bandgap

All-fused-ring π-conjugated molecules have received considerable attention because of their unique electronic structures, low conformation disorder, and excellent optoelectronic properties. Most all-fused-ring molecules are p-type organic semiconductors and possess medium bandgaps. In this work, we design and synthesize an all-fused-ring molecule (FM1) with an n-type property and narrow bandgap, which is a 10-fused-ring system composed of one electrondeficient benzotriazole core, two electron-rich thienopyrrole bridging units, and two electron-deficient malononitrile-functionalized end-cappers. FM1 exhibits low-lying highest occupied molecular orbit/lowest unoccupied molecular orbit energy levels of-5.77 eV/-3.89 eV, high electron mobility of 6.0 ×10~(-4) cm~2 V~(-1) s~(-1), an optical bandgap of 1.50 eV, and a maximum absorption wavelength of 769nm. Because of the all-fused-ring skeleton, FM1 shows superior photostability and chemical stability. We use FM1 as an electron acceptor and successfully construct organic solar cell (OSC) devices with a decent power conversion efficiency (PCE)of 10.8%. Most importantly, the intrinsic stability of FM1 leads to its excellent OSC device stability. After irradiation with simulated solar light for 16 h, while control of the OSC device of the state-of-the-art small molecule electron acceptor shows a 46% decrease of PCE, the FM1’s unencapsulated OSC device exhibits only a 9% decrease of PCE.
Supramolecular Template-Assisted Catalytic [2+2] Photocycloaddition in Homogeneous Solution

Supramolecular interactions can help recognize and organize substrates around an enzyme’s active sites and subsequently assemble a new molecule in a certain way. Inspired by nature’s control of reactions, in this work we designed a template catalyst equipped with ditopicAu(I)-N-heterocyclic carbene (NHC) functional sites that direct olefin substrates into reactive geometries via collaboration of coordination-driven interactions. Notably, this catalyst enables the realization of catalytic [2+2] photocycloadditionswith as low as 2 mol % catalyst loading in homogeneous solution and the delivery of a series of cyclobutane derivatives with excellent conversions and stereoselectivities. The success of gram-scale reactions further demonstrates the feasibility of this strategy, which lays a solid foundation for the large-scale preparation of cyclobutane derivatives in the future.
S-Shaped Fused Azacorannulene Dimer: Structural and Redox Properties

Because of their unique structural and chemical properties, buckybowl molecules have attracted considerable attention in a wide range of scientific disciplines. The importance and utility of buckybowl molecules significantly increases once they acquire larger π-surface area and/or heteroatoms. The fusion of buckybowl molecules has emerged as a new strategy to extend the π-surface of polycyclic aromatic compounds; however, the π-extension of heteroatom-embedded buckybowls by the fusion strategy is still rare. Here we report the synthesis and propeties of a fused azacorannulene dimer bearing a C_(62)N_2 core (1a), which can also be regarded as a double aza[5]helicene. Due to the steric repulsion between two azapentabenzocorannulene moieties, this molecule shows a rigid S-shaped structure where the two azacorannulene bowls face in opposite directions. Stepwise chemical oxidation of 1a resulted in the formation of the corresponding radical cation (1a~(·+)) and dication (1a~(2+)), providing an important insight into their aromaticity. The fusion of heteroatom-embedded buckybowls provides a powerful way to synthesize π-extended polycyclic aromatic molecules.
Large-scale plasma grafts voltage stabilizer on hexagonal boron nitride for improving electrical insulation and thermal conductivity of epoxy composite

Better electrical insulation and thermal management are both urgently required in integrated power semiconductors. Electrical insulation epoxy encapsulation suffers from poor heat conduction, which has increasingly become a bottleneck of power semiconductors integration. Although incorporating high thermal conductivity ceramics, such as hexagonal boron nitride(hBN), aluminium nitride etc. into epoxy promotes the thermal conductivity, the eco-friendly scalable fabrication of these composites with sufficient electrical breakdown strength remains a formidable challenge. Suitable voltage stabilizers are known to provide additional benefits to breakdown strength. Herein, a highthroughput approach combining plasma with roll-to-roll was developed. The voltage stabilizer(acetophenone) was grafted on interfaces between hBN and epoxy matrix through plasma. The high-energy electrons are consumed by the grafted interface, which leads to the significant suppression of partial discharge in Epoxy/hBN. Meanwhile, interfacial phonon scattering is repaired by grafting. Therefore, the epoxy composite concurrently exhibits improved breakdown strength(by 27.4%) and thermal conductivity(by 142.9%) at about 11.9 wt.% filler content, outperforming the pure epoxy. Consequently, a promising modification strategy for mass production is provided for the encapsulation materials in various high-power-density semiconductor devices.
Volatile profile and multivariant analysis of Sanhuang chicken breast in combination with Chinese 5-spice blend and garam masala

Sanhuang chicken is a popular native breed in China and well-known for delicious flavour. Spices could enhance the chicken meat flavour and work well in preservation. Chinese 5-spice blend (CS) and garam masala (GM) are routinely using spices in China and Pakistan, respectively. The flavour profiles of Sanhuang chicken breast (CB) and its blends with CS and GM were obtained by electronic nose (E-nose), solid-phase microextraction gas chromatography-mass spectrometry (SPME GC-MS) and GC-ion mobility spectrometry (GC-IMS). Principal component analysis (PCA) efficiently discriminated the aroma profiles of three chicken formulations. The GC-chromatographs revealed the significant aroma alterations of chicken breast meat after marination with spices. Aldehydes were the major contributors of chicken aroma, while most of the aromatic hydrocarbons were generated by spices. Almost all chicken key-compounds produced by oxidation reaction were either reduced or eliminated by marination, showing the antioxidation capacity of spices leading to meat preservation. GC-IMS is not only a rapid and comprehensive detection method, but also proved to be more sensitive than GC-MS. The substantial role of both traditional spices in enhancing flavour quality of chicken meat, and their exposure as functional ingredients in Chinese and Pakistan cuisines could lead to the crosscultural meat trade opportunities.
Electrospun gelatin/chitosan nanofibers containing curcumin for multifunctional food packaging

Recently, food grade nanofiber-based materials have received growing attentions in food packaging. In this work, novel active and intelligent packaging nanofibers based on gelatin/chitosan with curcumin (GA/CS/CUR) were developed via electrospinning technique. Effects of the incorporation of CUR content (0.1%- 0.3%, m/m) on the microstructure and functional properties of the electrospun nanofibers were investigated. Morphological studies using scanning electron microscopy indicated that loading CUR can affect the average diameter of nanofiber mats, which remained around 160-180 nm. The addition of an appropriate level CUR (0.2%, m/m) led to a stronger intermolecular interaction, and thus enhanced the thermal stability and tensile strength of the obtained nanofibers. Meanwhile, the incorporation of CUR significantly improved antioxidant activity and the antimicrobial activity of GA/CS/CUR nanofibers. Moreover, the sensitivity of nanofibers to ammonia results indicated that GA/CS nanofibers containing 0.2% CUR (GA/CS/CUR II) presented high sensitivity of colorimetric behavior to ammonia (within 3 min). These results suggest GA/CS/CUR II nanofibers has great potential as a multifunctional packaging to protect and monitor the freshness of proteinrich animal foods, such as meat and seafood.
Selection of specific nanobodies against peanut allergen through unbiased immunization strategy and the developed immuno-assay

Peanut allergy is considered to be a major health issue with global effects. To date, no effective curative approach has been applied for the therapy of the anaphylaxis resulting from the peanut allergens. The accurate and effective detection methods for the surveillance of allergens in food are still the primary strategies to avoid allergic diseases. In this study, nanobodies (Nbs) derived from the Heavy-Chain only Antibodies (HCAbs) were selected against the general peanut protein extract through the unbiased strategy to facilitate the development of the sandwich ELISA for the detection and surveillance of peanut allergen contamination. The target antigen of the selected Nb was identified as peanut allergen Ara h 3, and a cross-reaction was observed with the member of Gly 1 from the Ara h 3 family. The applicability of the self-paired Nb P43 on the establishment of the immuno-assay was verified. A sandwich ELISA against peanut allergen was developed, which reached a linear range of 0.2-10.6 μg/mL, and a limit of detection of 53.13 ng/mL.
Ecosystem Microbiome Science

The microbiome contributes to multiple ecosystem functions and services through its interactions with a complex environment and other organisms.To date,however,most microbiome studies have been carried out on individual hosts or particular environmental compartments.This greatly limits a comprehensive understanding of the processes and functions performed by the microbiome and its dynamics at an ecosystem level.We propose that the theory and tools of ecosystem ecology be used to investigate the connectivity of microorganisms and their interactions with the biotic and abiotic environment within entire ecosystems and to examine their contributions to ecosystem services.Impacts of natural and anthropogenic stressors on ecosystems will likely cause cascading effects on the microbiome and lead to unpredictable outcomes,such as outbreaks of emerging infectious diseases or changes in mutualistic interactions.Despite enormous advances in microbial ecology,we are yet to study microbiomes of ecosystems as a whole.Doing so would establish a new framework for microbiome study:Ecosystem Microbiome Science.The advent and application of molecular and genomic technologies,together with data science and modeling,will accelerate progress in this field.
Review of research on intelligent diagnosis of oil transfer pump malfunction

Oil transfer pump is the key dynamic equipment in the process of oil and gas gathering and transportation, and its working reliability directly affects the safety of oil and gas storage and transportation. Intelligent diagnosis is a key technical method to reduce failure rate of oil transfer pump, ensure the safety of gathering and transportation process, and avoid major safety accidents caused by oil transfer pump failure. Various oil transfer pumps have been emerged in recent decades, and the common fault types and characteristics of oil transfer pump have been brought out in the review. This article highlights on the research of the fault signal and processing methods of oil transfer pump. Firstly, the fault signal of the oil transfer pump is discussed and the advantages and disadvantages of different signal extraction are analyzed. Secondly, the intelligent diagnosis method of oil transfer pump and the shortcomings of the existing methods are pointed out. Finally, the conclusions are given and the future development perspectives of oil transfer pumps are suggested. The main contribution of this review is to give a syn-thetic understanding on oil transfer pumps.
Flow characteristic of polymer solutions in porous media: Influence of the molecular weight and concentration

The polymer solution flow in porous media is a central research topic related to hydraulic fracturing measures, formation damage and fracture propagation. Influenced by molecular weights and concentrations, various flow patterns of polymer in pores are presented, resulting in different filtration loss. In this work, the effectiveness of various polymer solutions for filtration loss was assessed by utilizing the core flooding experiment firstly. The result shows that lesser filtration loss normally is inextricably linked to solutions with high molecular weight and concentration. Subsequently, the flow behaviors of polymer solutions investigated by designed micro pore-throat structure and micro-particle image velocimetry (µ-PIV) further confirmed the above result. It was found that the central convergent flow pattern benefiting from higher viscous force loss and less filtration loss was observed at high flow rates (0.5 mL/h), and higher molecular weight and concentration were more prone to convergent flow patterns. The viscosity force loss increases by about 4 times varying the molecular weight of polymer from 5×10~6 to 18×10~6 g/mol or the concentration from 0.05 to 0.3%. It interprets higher molecular weight and concentration in core studies and field observations with decreased filtration loss of HPAM. This work provides a theoretical foundation for the application of fracturing fluids as well as fresh perspectives on how to access the filtration loss of fracturing fluids.
基于3D打印的Masquelet技术联合皮瓣移植治疗小儿足踝部骨与软组织缺损

目的探讨基于3D打印的Masquelet技术联合股前外侧穿支皮瓣移植修复小儿足踝部骨与软组织缺损的临床疗效。方法自2018年1月至2022年6月我科收治6例足、踝部严重骨与软组织缺损患儿,急诊清创后外固定架固定、VSD灌洗,创面培养无细菌生长后二期基于3D打印用骨水泥填充骨缺损,同时行游离股前外侧穿支皮瓣覆盖创面缺损。待6~8周诱导膜形成后行三期手术:取出占位骨水泥并在诱导膜内填充塑形的髂骨块后行钢板内固定。术后随访皮瓣存活及骨愈合情况,评价足踝关节功能。结果所有患者均获得随访,平均19.3个月,一期治疗中3例出现细菌感染,并经过2~3次扩创后行二期手术。末次随访所有皮瓣完全存活,骨缺损植骨均获得骨愈合,愈合时间平均8.6周,采用美国足踝外科协会AOFAS踝-后足评分均73.6分。结论基于3D打印的Masquelet技术联合游离皮瓣移植修复小儿足、踝部骨与软组织缺损,疗效确切,值得临床推广。