bluuebunny/crossref_metadata_2025 huggingface dataset:
Two generalizations of an over-determined system on a surface
Authors: Ando Naoya
Published: January 2023

We introduce and study two generalizations of an over-determined system on a surface. The first generalization is an over-determined system of polynomial type, which is in the form of [Formula: see text], where each [Formula: see text] is a one-form; the second generalization is represented as [Formula: see text], [Formula: see text], where [Formula: see text], [Formula: see text] are given by [Formula: see text] for a one-form [Formula: see text] and [Formula: see text] is given by [Formula: see text] for a nowhere zero two-form [Formula: see text]. Studying these systems, we will obtain generalizations and analogs of results we already have on over-determined systems on surfaces. In addition, we will obtain new kinds of results on the systems. Over-determined systems of the first generalization appear on admissible hypersurfaces in [Formula: see text] ([Formula: see text]). Results on the second generalization yield corollaries for over-determined systems on surfaces in three-dimensional non-flat space forms.
Reflection-mode nanostructured GaAlAs photocathode with narrow-band response to 532 nm
Authors: Li Shiman , Zhang Yijun , Shi Feng , Jiao Gangcheng , Guo Xin , Wang Ziheng , Zhang Kaimin , Wang Qiming , Qian Yunsheng
Published: January 2023

The underwater photoelectric detection equipment mainly uses 532 nm laser as the light source, but the corresponding photocathodes like Na2KSbCs, GaAs and GaAsP have a wide spectral response region and are easily affected by other signals. Thereby, GaAlAs are materials worth developing because of their adjustable band gap, which usually is used as a window layer of GaAs-based photocathode. In this paper, the finite difference time domain (FDTD) method is used to carry out nanostructure design simulations. The results show that GaAlAs with Al component of 0.63 can obtain the cutoff wavelength near 532 nm, which is an excellent photocathode material to meet the requirement of narrow-band spectral response of 532 nm laser. Furthermore, the light absorptance can be improved effectively by the quadrangular prism or cylinder nanostructured array prepared on the Ga[Formula: see text]Al[Formula: see text]As emission layer surface, and the maximum light absorptance can reach 96.2% at 532 nm for the cylinder nanostructure array with a height of 900 nm and a base width of 100 nm. Nevertheless, the reflection-mode Ga[Formula: see text]Al[Formula: see text]As photocathode with the quadrangular prism nanostructured array can be slightly influenced with incident angle of light.
Random Access Preamble Detection with Noise Suppression for 5G-Integrated Satellite Communication Systems
Authors: Zhen Li , Zhao Yan , Zhu Yanyan , Pei Chenchen , Li Yinghua
Published: January 2023

Thanks to its capability of providing seamless massive access and extended coverage, satellite communication has been envisioned as a promising complementary part of the future 6G network. Due to the large satellite-to-ground propagation loss, noise mitigation is one of the most important considerations for implementing key interface technologies on boarding a satellite, e.g., random access (RA). This paper aims at developing an effective preamble detection method with noise suppression for 5G-ntegrated satellite RA systems. Specifically, according to the satellite ephemeris and user equipment location, we first perform the pre-compensation of timing and frequency offset before preamble transmission to determine all the possible correlation peak positions in advance. By leveraging the advantage of the wavelet transform in signal-to-noise separation, we further design a novel detection framework based on wavelet denoising, which can efficiently reconstruct preamble signature from the noisy power delay profile. Simulation results validate the feasibility of the proposed method, and show that our method can achieve a notably improved detection performance under extremely low signal-to-noise ratio conditions, in comparison with the conventional one.
Multi-Objective Optimal Power Flow Solutions Using Improved Multi-Objective Mayfly Algorithm (IMOMA)
Authors: Vijaya Bhaskar K. , Ramesh S. , Karunanithi K. , Raja S. P.
Published: January 2023

This paper realizes the implementation of Improved Multi-objective Mayfly Algorithm (IMOMA) for getting optimal solutions related to optimal power flow problem with smooth and nonsmooth fuel cost coefficients. It is performed by considering Simulated Binary Crossover, polynomial mutation and dynamic crowding distance in the existing Multi-objective Mayfly Algorithm. The optimal power flow problem is formulated as a Multi-objective Optimization Problem that consists of different objective functions, viz. fuel cost with/ without valve point loading effect, active power losses, voltage deviation and voltage stability. The performance of Improved Multi-objective Mayfly Algorithm is interpreted in terms of the present Multi-objective Mayfly Algorithm and Nondominated Sorting Genetic Algorithm-II. The algorithms are applied under different operating scenarios of the IEEE 30-bus test system, 62-bus Indian utility system and IEEE 118-bus test system with different combinations of objective functions. The obtained Pareto fronts achieved through the implementation of Improved Multi-objective Mayfly Algorithm, Multi-objective Mayfly Algorithm and Nondominated Sorting Genetic Algorithm-II are compared with the reference Pareto front attained by using weighted sum method based on the Covariance Matrix-adapted Evolution Strategy method. The performances of these algorithms are individually analyzed and validated by considering the performance metrics such as convergence, divergence, generational distance, inverted generational distance, minimum spacing, spread and spacing. The best compromising solution is achieved by implementing the Technique for Order of Preference by Similarity to Ideal Solution method. The overall result has shown the effectiveness of Improved Multi-objective Mayfly Algorithm for solving multi-objective optimal power flow problem.
Upgraded waveform model of eccentric binary black hole based on effective-one-body-numerical-relativity for spin-aligned binary black holes
Authors: Liu Xiaolin , Cao Zhoujian , Shao Lijing
Published: January 2023

Effective one body numerical relativity waveform models for spin-aligned binary black holes (SEOBNR) are based on the effective one body theoretical framework and numerical relativity simulation results. SEOBNR models have evolved through version 1 to version 4. We recently extended SEOBNRv1 model to SEOBNRE (Effective One Body Numerical Relativity waveform models for Spin-aligned binary black holes along Eccentric orbit) model which is also valid for spin-aligned binary black hole coalescence along eccentric orbit. In this paper, we update our previous SEOBNRE model to make it consistent to SEOBNRv4 which is the most widely used SEOBNR waveform model. This upgraded SEOBNRE model improves accuracy compared to previous SEOBNRE model, especially for highly spinning black holes. For spin-aligned binary black holes with mass ratio [Formula: see text], dimensionless spin [Formula: see text] and orbital eccentricity [Formula: see text] at reference frequency [Formula: see text] ([Formula: see text] is the total mass of the binary black hole, [Formula: see text]Hz), the upgraded SEOBNRE model can always fit numerical relativity waveform better than 98.2%. For most cases, the fitting factor can even be better than 99%.
EFFECT OF NANOPARTICLE ADDITIVES ON THE MICROSTRUCTURE AND CORROSION PROPERTIES OF PLASMA ELECTROLYTIC OXIDATION COATINGS ON MAGNESIUM ALLOYS: A REVIEW
Authors: YU LANG , JIA PINGPING , SONG YUNPENG , ZHAO BOCHENG , PAN YAOKUN , WANG JINGTAO , CUI HONGWEI , FENG RUI , LI HUI , CUI XIAOLI , WANG YONGXIAO , GAO ZENGLI , ZHAO XINGCHUAN , FANG XIAOYING , ZHANG LIJUAN
Published: January 2023

In recent years, nanoparticles are increasingly used in scientific research and have attracted the attention of many scholars. In this paper, ceramic coatings were prepared on the surface of magnesium and its alloys using the plasma electrolytic oxidation (PEO) technique. We investigated different nanoparticles added to the electrolyte and explored the mechanism of nanoparticle effects on the formation and protection mechanism, morphology and structure, thickness and roughness, and electrochemical corrosion behavior of the coatings. The results show that the coating morphology changes significantly and the surface is more uniform and dense due to the addition of nanoparticles in the electrolyte. The addition of nanoparticles increases the thickness of the coating to some extent, but as its addition to the electrolyte increases, the coating thickness decreases. Since the prepared coatings inevitably produce micropores and microcracks, which may have an impact on the corrosion resistance of the coatings, how to improve the corrosion resistance of the coatings has become a common concern. Nanoparticles can participate in the growth of the coating and will enter the micropores under discharge conditions. On the one hand, they can play a role in closing the porous layer, and on the other hand, they will form some special structures on the surface, thus improving the corrosion resistance of the coating. Finally, we outlook the problems and challenges of the PEO technique in practical applications.
SLIDING WEAR BEHAVIOR OF MARBLE DUST PRE-MIXED WITH NiCr COATINGS ON MILD STEEL SUBSTRATES AT ELEVATED TEMPERATURE
Authors: NAYAK SANDIP KUMAR , SATAPATHY ALOK , MANTRY SISIR , BESRA LAXMIDHAR
Published: January 2023

In this research, microsized marble dust is spray-coated on mild steel substrates through a well-designed high-velocity oxy-fuel (HVOF) spraying route. For this, a standard spray set up Hipojet 2700 is used. Marble dust is an ornamental stone waste generated in huge quantities during the depletion and processing of ornamental stones to make them usable. Commercially available spray-grade NiCr powder is added with a proportion of 10% by weight in the marble dust prior to deposition to increase its flowability and adherence. The coating on the mild steel substrates is deposited with a spray distance of 200[Formula: see text]mm and a fuel (LPG) feed rate of 55–60[Formula: see text]g/min. Dry-sliding wear trials under controlled conditions on the deposited coatings are conducted as per ASTM G 99-05 using a tribometer capable of operating at a wide temperature range. A parametric analysis of the test results using MINITAB 18 software shows that the control factors such as sliding velocity, specimen temperature, sliding distance and normal load, in the declining sequence, are significant in affecting the specific wear rate (SWR) of the coatings. Based on this, further experimentations are carried out separately for a wider range of the sliding velocity and specimen temperature keeping all other factors constant to study their individual effects on the wear rate more precisely. The morphologies of the worn surfaces are studied to ascertain the possible mechanisms taking place during the wear process leading to coating mass loss.
ESTABLISHMENT AND ANALYSIS OF FRACTAL CONTACT MODEL FOR POINT GRINDING PARTS
Authors: CHAO CAIXIA , XIU SHICHAO , WEI YONGLE
Published: January 2023

In this work, we establish a fractal contact model and analyze the effect of the parameters on stress. The study provided a method to make a link between contact characteristics and surface condition. The surface texture model was built based on the process mechanism of point grinding. The experiment for the effect of the surface texture on contour height was carried out on TR300 roughness shape-measuring instrument and the structural function method of fractal theory was used to obtain the fractal dimensions and scale coefficients of surfaces with different surface textures. The fractal contact model was established based on the fractal characteristics of the surface point ground and the simulation was carried out using Matlab. Furthermore, the validation of compression experiment was carried out by WAW-600C universal testing machine, the high-definition pictures before and after the experiment were obtained by KEYENCE VH-Z500R ultra-depth-of-field 3D microscope and the surface topographies before and after the experiment were obtained by NANOVEA PS50 three-dimensional noncontact surface profile meter. The obtained findings can help to choose appropriate surface with the best contact characteristics under certain condition.
COMPARISON BETWEEN CORTICOSTEROID INJECTION AND PLATELET-RICH PLASMA (PRP) IN THE TREATMENT OF FROZEN SHOULDER
Authors: Mirzaee Fateme , Ahmadinejad Bahareh , Baradaran Amir Farahanchi , Zafarani Zohreh , Aslani Hamidreza
Published: January 2023

Objectives: Frozen shoulder (adhesive capsulitis) is a common musculoskeletal disease that appears with a number of symptoms such as pain and constrained active and passive motions of the shoulder. Frozen shoulder mainly affects middle-aged adults. Local corticosteroids injection, oral corticosteroid, Platelet-Rich Plasma (PRP), NSAIDs, and physiotherapy may alleviate the symptoms. The aim of this study is to compare the efficacies of corticosteroid injection and PRP in treating frozen shoulder.

Methods: A quasi-experimental research was performed on patients with frozen shoulder; to this end, 32 male and 109 female patients were enlisted in the study. The patients were divided randomly into two groups: those receiving (a) PRP and (b) corticosteroid injection.

Results: No significant relation was noticed between the two groups after 12 weeks according to a range of motions in flexion ([Formula: see text] = 0.300), abduction ([Formula: see text] = 0.133), external rotation ([Formula: see text] = 0.100), and internal rotation ([Formula: see text] = 0.206). In addition, no significant difference between pain and function scores was detected ([Formula: see text] = 0.103, 0.100).

Conclusion: Based on our investigation, both corticosteroid injection and PRP are effective in treating adhesive capsulitis, and there is no notable difference in the effectiveness of these two treatment modalities in patients with frozen shoulder.
Scalable quantum computation based on nitrogen-vacancy centers in decoherence-free subspace
Authors: You Yi , Ding Zhong , Zhang Yong
Published: January 2023

Due to its unique optical properties, nitrogen-vacancy centers in diamond show remarkable advantages in realizing quantum information processing and computation. This paper proposes a scalable quantum computing architecture based on solid-state NV centers. In our scheme, logical qubits are encoded in a decoherence-free subspace (DFS) with Larmor pairs (a pair of the nucleus). And the connection between multiple qubits is assisted by a cantilever probe. Then the high fidelity of the universal quantum gate is achieved by using a series of pulses. Our scheme provides physical feasibility for scalable quantum computing and may pave the way for large-scale quantum computing based on NV centers.
Vibration Characteristics and Power Flow Analysis of a Constant Cracked Beam with General Boundary Conditions
Authors: Zhao Kaiwen , Liu Yang , Du Jingtao
Published: January 2023

The vibration analysis of beams with cracks is an important problem in the structural dynamics community. In this study, a general model for the vibration analysis of a cracked beam with general boundary conditions was developed and investigated, emphasizing its vibration and power flow characteristics. The beam crack was introduced via torsional and translational coupling springs, which separated the beam structure into two segments, and the corresponding vibration characteristics were investigated via an energy-based formulation in conjunction with the Lagrangian procedure. A boundary-smoothed Fourier series was employed to construct the beam displacement field to avoid boundary differential discontinuities. Various crack statuses, including their depths or positions can be easily considered by adjusting the stiffness coefficient of the artificial springs. Several examples were presented to validate the effectiveness and accuracy of the proposed model. The modal characteristics and forced response of a cracked beam were predicted and analyzed, respectively, with a detailed depiction of the power flow around the crack. The results indicate that the presence of a crack has an important effect on the modal characteristics of an elastically restrained beam, as well as on the power flow distribution across the beam structure. This study can provide an effective tool for the dynamic analysis and power flow mechanism of beam structures with various cracks and complex boundary conditions.
A Low Virulence Infective Tenosynovitis Triggered by a Neisseria Species
Authors: KARAGERGOU Eleni , CHALIDIS Byron , SACHINIS Nikolaos Platon , GIVISSIS Panagiotis
Published: January 2023

A persistent infective tenosynovitis, caused by a non-pathogenic Neisseria species and involving the little finger and the thumb of a middle-aged woman, forming a horseshoe-type infection is presented. An extensive volar approach was utilised for excision of the granulomatous synovium and drainage of turbid fluid. Neisseria spp was isolated by tissue microbiology and targeted antibiotic therapy for 6 weeks was required to eradicate infection. The presence of low virulence microorganisms which might act as true pathogens should always be considered as a causative factor leading to persistent infections that require open surgical debridement and washout.

Level of Evidence: Level V (Therapeutic)
Wide Local Excision with Sentinel Lymph Node Biopsy for Digital Papillary Adenocarcinoma: A Case Report
Authors: GUO Eric W. , YOON Alfred P. , CHUNG Kevin C.
Published: January 2023

Digital papillary adenocarcinoma (DPA) is a rare but locally aggressive eccrine tumour that has metastatic potential and most frequently found in the upper extremity. It usually presents as an unremarkable swelling of the skin, commonly misdiagnosed as a benign lesion. We present a 67-year-old male who presented with a slowly growing mass of the right middle finger that was biopsied and diagnosed with DPA. The patient was treated with wide local excision (WLE) and sentinel lymph node biopsy by us during the same operative encounter. This report highlights the need for increased clinical vigilance to diagnose DPAs, and that WLE and sentinel lymph node biopsies can be safe and effective treatments offered.

Level of Evidence: Level V (Therapeutic)
Dual Corrective Osteotomy of the Radius and Ulna for Mature Madelung Deformity Using CT-based 3D Simulation: A Case Report
Authors: KODAMA Akira , TANIMORO Kaguna , IWAGURO Shogo , ADACHI Nobuo
Published: January 2023

We report a patient with mature Madelung deformity who underwent radial and ulnar corrective osteotomy using three-dimensional (3D) simulation. An osteotomy model was created using the computer-aided design (CAD) software based on the computed tomography (CT) data. After correcting the ulna, the osteotomy angle of the radius was determined using the location of the lunate as a landmark in the 3D plane created by the longitudinal axis of the corrected ulna. Consequently, the ulna was flexed 3° and shortened by 5 mm, and the radius was extended at 36° and ulna deviated at 25° by open wedge osteotomy. The radial inclinations, volar tilt and ulnar variance were 25°, 45° and 5 mm preoperatively, and improved to 22°, 10° and 0 mm after surgery. At the 18-month follow-up, the patient reported no pain even during sports activity. The preoperative 3D simulation enabled precise preoperative planning and accurate correction of the Madelung deformity.

Level of Evidence: Level V (Therapeutic)
A New Toolbox for Scheduling Theory
Authors: Scully Ziv
Published: January 2023

Queueing delays are ubiquitous in many domains, including computer systems, service systems, communication networks, supply chains, and transportation. Queueing and scheduling theory provide a rigorous basis for understanding how to reduce delays with scheduling, including evaluating policy performance and guiding policy design. Unfortunately, stateof- the-art theory fails to address many practical concerns. For example, scheduling theory seldom treats nontrivial preemption limitations, and there is very little theory for scheduling in multiserver queues.

My thesis presents two new, broadly applicable tools that greatly expand the reach of scheduling theory, using each to solve multiple open problems. The first tool, called "SOAP", is a new unifying theory of scheduling in single-server queues, specifically the M/G/1 model. SOAP characterizes the delay distribution of a broad space of policies, most of which have never been analyzed before. Such policies include the Gittins index policy, which minimizes mean delay in low-information settings, and many policies with preemption limitations. The second tool, called "WINE", is a new queueing identity that complements Little's law. WINE enables a new method of analyzing complex queueing systems by relating them to simpler systems. This results in the first delay bounds for Shortest Remaining Processing Time (SRPT) and the Gittins policy in multiserver queues, specifically the M/G/k model.

This abstract gives a brief overview of my thesis, describing what the SOAP and WINE tools do, the key ideas underlying them, and the open problems they help solve.
Resource Allocation and Scheduling in Modern Cloud Computing
Authors: Sun Xiao
Published: January 2023

With various types of resources, infrastructures and users participating in the current big data ecosystem at an astonishing speed, resource allocation and scheduling has been identified as one of the key areas needing substantial research for the advancement of system performance.
Validation of a Spanish-language Version of a Computer Programming Aptitude Test for First-year University Students
Authors: Vásquez Francisco , Calderón Juan Felipe , Meza Federico , Vásquez Andrea
Published: January 2023

There is increasing interest in computer science and computing bachelor programs due to the growing importance of technology in the globalized world. Thus, as higher education institutions strive to serve a diverse student demographic, it is salient to gauge their programming abilities to improve guidance on learning processes regarding their initial knowledge state. Despite the availability of certain instruments to measure student programming skills, these are traditionally aimed at younger populations and do not accurately discriminate the different levels of ability among university students. This article introduces a translation into Spanish and validation of an existing English-language aptitude test for computing jobs that can be used to measure the programming abilities of students with no prior experience in the field. Following a cyclic research methodology, two iterations were carried out in this article. First, the aforementioned test was translated and validated via expert judgment and focus groups, in which certain items were removed subsequent to a quantitative analysis. The resultant instrument underwent a second validation using a larger population of students. Analysis conducted after the second iteration showed this instrument to deliver good internal consistency, good difficulty and discrimination indices, and a moderate correlation with the grades of the midterm exam of a programming course undertaken by first year engineering students. This work contributes to both increasing the number of tests available in the Spanish language with which to assess programming abilities, as well as to the broader literature regarding test adaptation, translation and validation.
cis-Regulatory Elements in Plant Development, Adaptation, and Evolution
Authors: Marand Alexandre P. , Eveland Andrea L. , Kaufmann Kerstin , Springer Nathan M.
Published: January 2023

cis-Regulatory elements encode the genomic blueprints that ensure the proper spatiotemporal patterning of gene expression necessary for appropriate development and responses to the environment. Accumulating evidence implicates changes to gene expression as a major source of phenotypic novelty in eukaryotes, including acute phenotypes such as disease and cancer in mammals. Moreover, genetic and epigenetic variation affecting cis-regulatory sequences over longer evolutionary timescales has become a recurring theme in studies of morphological divergence and local adaptation. Here, we discuss the functions of and methods used to identify various classes of cis-regulatory elements, as well as their role in plant development and response to the environment. We highlight opportunities to exploit cis-regulatory variants underlying plant development and environmental responses for crop improvement efforts. Although a comprehensive understanding of cis-regulatory mechanisms in plants has lagged behind that in animals, we showcase several breakthrough findings that have profoundly influenced plant biology and shaped the overall understanding of transcriptional regulation in eukaryotes.
Evolution of Atmospheric O2 Through the Phanerozoic, Revisited
Authors: Mills Benjamin J.W. , Krause Alexander J. , Jarvis Ian , Cramer Bradley D.
Published: January 2023

An oxygen-rich atmosphere is essential for complex animals. The early Earth had an anoxic atmosphere, and understanding the rise and maintenance of high O2 levels is critical for investigating what drove our own evolution and for assessing the likely habitability of exoplanets. A growing number of techniques aim to reproduce changes in O2 levels over the Phanerozoic Eon (the past 539 million years). We assess these methods and attempt to draw the reliable techniques together to form a consensus Phanerozoic O2 curve. We conclude that O2 probably made up around 5–10% of the atmosphere during the Cambrian and rose in pulses to ∼15–20% in the Devonian, reaching a further peak of greater than 25% in the Permo-Carboniferous before declining toward the present day. Evolutionary radiations in the Cambrian and Ordovician appear consistent with an oxygen driver, and the Devonian “Age of the Fishes” coincides with oxygen rising above 15% atm.
▪An oxygen-rich atmosphere is essential for complex animals such as humans.▪We review the methods for reconstructing past variation in oxygen levels over the past 539 million years (the Phanerozoic Eon).▪We produce a consensus plot of the most likely evolution of atmospheric oxygen levels.▪Evolutionary radiations in the Cambrian, Ordovician, and Devonian periods may be linked to rises in oxygen concentration.
Iceberg Calving: Regimes and Transitions
Authors: Alley R.B. , Cuffey K.M. , Bassis J.N. , Alley K.E. , Wang S. , Parizek B.R. , Anandakrishnan S. , Christianson K. , DeConto R.M.
Published: January 2023

Uncertainty about sea-level rise is dominated by uncertainty about iceberg calving, mass loss from glaciers or ice sheets by fracturing. Review of the rapidly growing calving literature leads to a few overarching hypotheses. Almost all calving occurs near or just downglacier of a location where ice flows into an environment more favorable for calving, so the calving rate is controlled primarily by flow to the ice margin rather than by fracturing. Calving can be classified into five regimes, which tend to be persistent, predictable, and insensitive to small perturbations in flow velocity, ice characteristics, or environmental forcing; these regimes can be studied instrumentally. Sufficiently large perturbations may cause sometimes-rapid transitions between regimes or between calving and noncalving behavior, during which fracturing may control the rate of calving. Regime transitions underlie the largest uncertainties in sea-level rise projections, but with few, important exceptions, have not been observed instrumentally. This is especially true of the most important regime transitions for sea-level rise. Process-based models informed by studies of ongoing calving, and assimilation of deep-time paleoclimatic data, may help reduce uncertainties about regime transitions. Failure to include calving accurately in predictive models could lead to large underestimates of warming-induced sea-level rise.
▪Iceberg calving, the breakage of ice from glaciers and ice sheets, affects sea level and many other environmental issues.▪Modern rates of iceberg calving usually are controlled by the rate of ice flow past restraining points, not by the brittle calving processes.▪Calving can be classified into five regimes, which are persistent, predictable, and insensitive to small perturbations.▪Transitions between calving regimes are especially important, and with warming might cause faster sea-level rise than generally projected.
W Modification of Nickel-Rich Ternary Cathode Material for Efficient Lithium-Ion Batteries
Authors: Song Jinshang , Zhu Lingzhi , Li Yudong , Han Enshan , Zhang Qi , Chen Gaojun , Zhang Ziqiang , Yang Xiaohui , He Yanzhen
Published: January 2023

As one of the fastest-growing cathode materials, Nickel-rich layered cathode material has caused much attention in the “next-generation” Li-ion batteries (LIBs) owning to the high specific energy, high operating potential and long cycling life. However, it still encounters a great of complications to realize the improvement of poor cycle stability and structural defects. In an effort to emphatically investigate the obvious advantages of eco-friendly and low-cost W doping cathode material on the crystalline morphology and electrochemical properties, LiNi0.65−xCo0.15Mn0.20WxO2 (x = 0.5%, 1.0%, 2.0%) were synthesized by hydroxide coprecipitation and calcination crystallization method. Especially, when the amount of W is 1.0% molar ratio, the initial discharge capacity reaches 216.55 mAh g−1 and achieves a capacity retention of 95.95% after 100 cycles with the operation voltage of 2.7–4.4 V at 1C. The reliable results show that the primary particle size via doping appropriate content of W become significantly smaller which can effectively consolidate the stability of the crystal cathode material and improve the recycling performance evidently. In addition, the element of W was detected in the lattice of the crystal particle, which bring about somewhat increase of lattice spacing and expands the Li+ diffusion channels during charge/discharge cycles. This work provides a potential application prospect by the strategy of W modification in the cathode materials of micron-sized particles for efficient lithium-ion batteries.
Reversible Self-discharge of LFP/Graphite and NMC811/Graphite Cells Originating from Redox Shuttle Generation
Authors: Buechele Sebastian , Logan Eric , Boulanger Thomas , Azam Saad , Eldesoky Ahmed , Song Wentao , Johnson Michel B. , Metzger Michael
Published: January 2023

Unwanted parasitic reactions in lithium-ion cells lead to self-discharge and inefficiency, especially at high temperatures. To understand the nature of those reactions this study investigates the open circuit storage losses of LFP/graphite and NMC811/graphite pouch cells with common alkyl carbonate electrolytes. The cells perform a storage test at 40 °C with a 500 h open circuit period after formation at temperatures between 40 °C and 70 °C. Cells formed at elevated temperature showed a high reversible storage loss that could be assigned to a redox shuttle generated in the electrolyte during formation. A voltage hold after formation can reduce the shuttle-induced self-discharge as indicated by significantly lower reversible storage losses, the absence of shuttling currents in cyclic voltammetry and improved metrics in ultra-high precision cycling. The addition of two weight percent vinylene carbonate can prevent redox shuttle generation and leads to almost zero reversible self-discharge.
Enhanced protein acetylation initiates fatty acid-mediated inhibition of cardiac glucose transport
Authors: De Loof Marine , Renguet Edith , Ginion Audrey , Bouzin Caroline , Horman Sandrine , Beauloye Christophe , Bertrand Luc , Bultot Laurent
Published: January 2023

Our results show that cardiac metabolic overload by oleate or palmitate leads to increased protein acetylation inhibiting GLUT4 translocation to the plasma membrane and glucose uptake. This observation suggests an additional regulation mechanism in the physiological glucose-FA cycle originally discovered by Randle.
Regulation of Macrophage Polarization by miR‐449a/Cripto‐1‐PI3K/AKT/NF‐κB Signaling Pathway in Allogeneic Transfusion Mice
Authors: Wang Huan , Yao Na , Wu Man-di , Yue Ke , Bai Yu , You Lai-Wei , Liu Tong , Xu Fang , Guo Jian-Rong
Published: January 2023

In this study, the expression of Cripto‐1 and the role of macrophage polarization in immune response after allogeneic transfusion were analyzed by constructing a mouse model of allogeneic transfusion. In order to analyze the effects of miR‐449a on the PI3K/AKT/NF‐κB signaling pathway and the expression of downstream related regulatory factors under normal and abnormal conditions, we adopt in vitro and in vivo experiments separately. The molecular mechanism of PI3K/AKT/NF‐κB signaling pathway was analyzed by blocking or activating gene expression and western blotting. Experiment in vitro has confirmed that inhibition of miR‐449a increased the protein expression of Cripto‐1. In vivo experiments confirmed that allogeneic transfusion reduced the expression of Cripto‐1, which further inhibited NF‐κB signaling pathway through AKT/PI3K phosphorylation, regulated macrophage polarization, inhibited M1 polarization of macrophages, promoted M2 polarization, and thus affected immune response of the body.
Reservoir Overpressure in the Mahu Sag, Northwestern Junggar Basin, China: Characteristics and Controlling Factors
Authors: Wu Haisheng , Sun Shuai , Zheng Menglin , Ren Haijiao , Wang Tao , Wang Xiatian , Chang Qiusheng , Guo Jianchen
Published: January 2023

Reservoirs with overpressure are of great importance for petroleum exploration where commercial production can be usually obtained. Studying the distribution characteristics and controlling factors of reservoir overpressure is crucial for further petroleum exploration. In this study, we investigate the vertical and planar distribution of reservoir overpressure in the Mahu sag, northwestern Junggar basin by analyzing measured pressure data from well testing of oil reservoirs. In the Baikouquan-Jiamuhe Formation, reservoir overpressure is widely distributed, and the pressure coefficient increases from the margin to the center of the sag and generally increases with the increasing altitude. Crossplot analysis of density and velocity in the Triassic strata and Permian Fengcheng Formation is conducted to further investigate the influence of undercompaction in the Mahu sag for the first time. The result suggests that undercompaction has little influence on reservoir overpressure, whereas fluid charging may play a vital role in the development of overpressure. Our research further conducted the analyses of distribution of source rocks and oil-source correlation. The results further confirmed that hydrocarbon generates from the Fengcheng Formation and charges into other reservoirs, suggesting that hydrocarbon generation and fluid charging are the main mechanism of reservoir overpressure.
Quaternion-Type Catalan Transforms of the ρ-Fibonacci and ρ-Lucas Numbers
Authors: Gül Kübra
Published: January 2023

In this paper, we define a new sequence called the quaternion-type Catalan sequence and give generating function, exponential representation, quaternionic Catalan matrix and its some properties. Then, we introduce a quaternion-type Catalan transform, which is a generalization of the Catalan transform, and its inverse. Moreover, we apply the quaternion-type Catalan transforms to

ρ

-Fibonacci and

ρ

-Lucas sequences and derive some new sequences by using these quaternion-type Catalan transforms.
Modified Passivity-Based Control for LCL-Filtered Grid-Tied Inverter with Output Admittance Reshaping
Authors: Wang Han , Shi Gang , Zhang Jianwen , Zhu Miao , Cai Xu
Published: January 2023

As a nonlinear control method, the Euler–Lagrange- (EL-) based passivity-based control (PBC) has been studied for grid-tied converters based on energy function to achieve better performance. However, the EL-based PBC method is dependent on an accurate mathematical model. In the traditional EL-based PBC research for LCL-filtered grid-tied inverter, the effect of the digital control delay is rarely considered and the stability under the grid impedance uncertainties is not discussed, especially in the capacitive grid or complex weak grid. To address these concerns, this study proposes a modified EL-based PBC method based on the output admittance reshaping for LCL-filtered grid-tied inverters. The system’ passive region is expanded by adding capacitor current feedback loop up to the Nyquist frequency. The potential resonance is thus eliminated irrespective of the grid impedance. Additionally, the stable region and control parameters design methods of the modified EL-based PBC method with inverter-side control are also carried out. To verify the correctness of the theoretical analysis, both simulation and experimental results are investigated from a 3 kW grid-tied inverter prototype.
Multisensory Stimulation and Priming (MuSSAP) in 4-10 Months Old Infants with a Unilateral Brain Lesion: A Pilot Randomised Clinical Trial
Authors: Verhaegh Anke P. M. , Groen Brenda E. , Aarts Pauline B. M. , van Ee Raymond , Willemsen Michèl A. A. P. , Jongsma Marijtje L. A. , Nijhuis-van der Sanden Maria W. G.
Published: January 2023

Aim. To explore the effect of an Early Intensive-Upper Limb intervention (EI-UL) compared to EI-UL with integrated Multisensory Stimulation And Priming (MuSSAP) training on improving manual ability in infants with a unilateral brain lesion. Method. A pilot randomised clinical trial with pre- and postintervention and follow-up measurements (T0, T1, and T2) was conducted. Sixteen infants with a unilateral brain lesion (corrected age is 4-10 months) received home-based intervention with video coaching. Eight infants received EI-UL and eight infants received EI-UL with integrated MuSSAP training. Primary outcome was the Hand Assessment for Infants (HAI) score. Additionally, effects were explored on initiation of goal-directed movements in both groups and on attention in the EI-UL with integrated MuSSAP training group. Results. No significant group differences in HAI scores were found. Overall, HAI ‘Affected hand score’ increased between T0 and T1 (

p
=
0.001

,

Cohen
’
s
 
d
=
1.04

) and between T0 and T2 (

p
<
0.001

,

Cohen
’
s
 
d
=
1.28

); and the HAI ‘Both Hands Measure’ increased between T0 and T1 (

p
<
0.001

,

Cohen
’
s
 
d
=
1.72

) and between T0 and T2 (

p
<
0.001

,

Cohen
’
s
 
d
=
1.81

). At the start of the intervention, six infants (three in both groups) did not demonstrate initiation of goal-directed contralesional upper limb movements. During the intervention one infant receiving EI-UL and all three infants receiving EI-UL with integrated MuSSAP training started to initiate goal-directed movements. Conclusion. The results suggest manual ability of infants with unilateral brain lesion improved with both interventions. We hypothesize that the integrated MuSSAP training may facilitate attention and initiation of contralesional upper limb goal-directed movements. This trial is registered with NCT05533476).
Closed-Loop Fault Diagnosis of SDR Using Gap Metric, PCA, and Kalman’s Principle
Authors: Wang Hongfu , Zeng Qinghua , Wang An , Zhang Zongyu , Liu Weide
Published: January 2023

The measurement of the pressure in the gas generator (GG) plays a decisive role in the closed-loop regulation of the gas flow in a solid ducted rocket ramjet (SDR). Therefore, the fault detection and isolation (FDI) of the pressure sensors is particularly significant. Especially in the GG with double pressure feedback, there are issues such as less available data and sensor fault transmission, which make the FDI more difficult. In this paper, for the GG with double pressure feedback, firstly, the “Consistency Index” was constructed based on the principal component analysis (PCA) algorithm, which made it easier to evaluate the consistency of the measured values. Secondly, based on Kalman’s principle, the redundancy information of the system was used to estimate the pressure in the GG. Finally, the gap metric between the measured pressure and the estimated pressure was employed to characterize the health of the sensors. Compared with the MWPCA algorithm, it was shown that our proposed algorithm was more accurate in fault diagnosis and could avoid the problem of missing alarm when two sensors had consistent faults, which would provide strong support for the safe operation of the SDR and could further promote its application in long-endurance aircrafts.
QuantitativeIn VivoImaging of the Androgen Receptor Axis Reveals Degree of Prostate Cancer Radiotherapy Response
Authors: Storey Claire M. , Altai Mohamed , Bicak Mesude , Veach Darren R. , Lückerath Katharina , Adrian Gabriel , McDevitt Michael R. , Kalidindi Teja , Park Julie E. , Herrmann Ken , Abou Diane , Zedan Wahed , Peekhaus Norbert , Klein Robert J. , Damoiseaux Robert , Larson Steven M. , Lilja Hans , Thorek Daniel , Ulmert David
Published: January 2023

Noninvasive biomarkers for androgen receptor (AR) pathway activation are urgently needed to better monitor patient response to prostate cancer therapies. AR is a critical driver and mediator of resistance of prostate cancer but currently available noninvasive prostate cancer biomarkers to monitor AR activity are discordant with downstream AR pathway activity. External beam radiotherapy (EBRT) remains a common treatment for all stages of prostate cancer, and DNA damage induced by EBRT upregulates AR pathway activity to promote therapeutic resistance. [89Zr]11B6-PET is a novel modality targeting prostate-specific protein human kallikrein 2 (hK2), which is a surrogate biomarker for AR activity. Here, we studied whether [89Zr]11B6-PET can accurately assess EBRT-induced AR activity.

Genetic and human prostate cancer mouse models received EBRT (2–50 Gy) and treatment response was monitored by [89Zr]11B6-PET/CT. Radiotracer uptake and expression of AR and AR target genes was quantified in resected tissue.

EBRT increased AR pathway activity and [89Zr]11B6 uptake in LNCaP-AR and 22RV1 tumors. EBRT increased prostate-specific [89Zr]11B6 uptake in prostate cancer–bearing mice (Hi-Myc x Pb_KLK2) with no significant changes in uptake in healthy (Pb_KLK2) mice, and this correlated with hK2 protein levels.

Implications:

hK2 expression in prostate cancer tissue is a proxy of EBRT-induced AR activity that can noninvasively be detected using [89Zr]11B6-PET; further clinical evaluation of hK2-PET for monitoring response and development of resistance to EBRT in real time is warranted.
High-Frequency versus Low-Frequency Spinal Cord Stimulation in Treatment of Chronic Limb-Threatening Ischemia: Short-Term Results of a Randomized Trial
Authors: Kilchukov Martin , Kiselev Roman , Gorbatykh Anton , Klinkova Asya , Murtazin Vladimir , Kamenskaya Oksana , Orlov Kirill
Published: January 2023

Introduction: The objective of the study is to determine if high-frequency (1 kHz) spinal cord stimulation (SCS) is better than low-frequency SCS for pain relief in chronic limb-threatening ischemia (CLTI). Methods: HEAL-SCS trial was designed as an open-label, parallel-group, single-center randomized study with a 1:1 allocation ratio. The trial was conducted in Meshalkin National Medical Research Center between August 2018 and February 2020. Total 56 patients underwent screening, 50 were enrolled, 6 were rejected. The participants were randomized into 2 cohorts of 25 patients each by an external coordinator using an online tool. A neurosurgeon and a vascular surgeon both examined all patients and estimated the pain intensity using visual analog scale (VAS), quality of life with short-form-36 health survey (SF-36), and functional status by walking impairment questionnaire (WIQ) at 3 and 12 months. Tissue perfusion was evaluated for 34 patients using transcutaneous oxygen tension measurement (TcPO2) at baseline and in 12 months. Results: All 50 patients (84% men, median age 66.5 y.o) were available for primary outcome assessment 3 and 12 months after implantation. Intention-to-treat analysis demonstrated comparative advantage of HF-SCS over LF-SCS at 3 months with mean VAS score 2.8 (95% CI, 2.4; 3.2) and 3.3 (95% CI, 3.0; 3.6), respectively (p = 0.031). Clinical superiority of HF-SCS persisted at 12-month follow-up (p < 0.001). HF-SCS produced significantly greater pain relief by WIQ at 3 (p < 0.001) and 12 months (p = 0.009). Despite stair-climbing ability was better in HF-SCS group (p = 0.02), no significant difference between groups was found at 1-year post-op in terms of speed (p = 0.92) and distance scores (p = 0.68). Accordingly, the general and mental health domains of SF-36 were significantly better in HF-SCS at 12 months. Despite a tendency toward better resting oxygen pressure in HF-SCS group, there was no intergroup difference by TcPO2 (p = 0.076). Only 1 patient (2%) required above-the-knee amputation at 10 months after LF-SCS implantation. Conclusion: High-frequency SCS provides better pain relief, life quality, and functional performance in patients with CLTI during short-term follow-up. The lack of perfusion difference between high-frequency and conventional SCS requires further examination to the possible long-term advantages of the method.
Comparison of Efficacy and Safety between Endoscopic Retrograde Cholangiopancreatography and Percutaneous Transhepatic Cholangial Drainage for the Treatment of Malignant Obstructive Jaundice: A Systematic Review and Meta-Analysis
Authors: Pang Liwei , Wu Shuodong , Kong Jing
Published: January 2023

Background: At present, endoscopic retrograde cholangiopancreatography (ERCP) and percutaneous transhepatic cholangial drainage (PTCD) are frequently used for reducing malignant obstructive jaundice (MOJ). However, it is controversial as to which method is superior in terms of efficacy and safety. Objectives: The aim of this study was to compare the safety, feasibility, and clinical benefits of ERCP and PTCD in matched cases of MOJ. Methods: The Web of Science, Cochrane, PubMed, and CNKI databases were searched systematically to identify studies published between January 2000 and December 2019, without language restrictions, that compared ERCP and PTCD in patients with MOJ. The primary outcome was the success rate for each procedure. The secondary outcomes were the technical success rate, serum total bilirubin level, length of hospital stay, hospital expense, complication rate, and survival. This meta-analysis was performed using Review Manager 5.3. Results: Sixteen studies met the inclusion criteria, including 1,143 cases of ERCP and 854 cases of PTCD. The analysis demonstrated that jaundice remission in PTCD was equal to that in ERCP (mean difference [MD], 1.19; 95% confidence interval [CI]: −0.56 to –2.93; p = 0.18). However, the length of hospital stay in the ERCP group was 3.03 days shorter than that in the PTCD group (MD, −2.41; 95% CI: −4.61 to −0.22; p = 0.03). ERCP had a lower rate of postoperative complications (odds ratio, 0.66; 95% CI: 0.42–1.05); however, the difference was not significant (p = 0.08). ERCP was also more cost-efficient (MD, −5.42; 95% CI: −5.52 to −5.32; p < 0.01). Further, we calculated the absolute mean of hospital stay (ERCP:PTCD = 8.73:12.95 days), hospital expenses (ERCP:PTCD = 5,104.13:5,866.75 RMB), and postoperative complications (ERCP:PTCD = 11.2%:9.1%) in both groups. Conclusion: For remission of MOJ, PTCD and ERCP had similar clinical efficacy. Each method has its own strengths and weaknesses. Considering that ERCP had a lower rate of postoperative complications, shorter hospital stay, and higher cost efficiency, ERCP may be a superior initial treatment choice for MOJ.