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An integrated MINLP model for multi-party coordination in downstream oil supply chain

Petroleum Science 2024年第3期21卷 2066-2079页

作者： Rui Qiu Bo Zhang Wei Zhao ren-fu tu Man-Qiu He Qi Liao Yong-tu Liang National Engineering Laboratory for Pipeline Safety/Beijing Key Laboratory of Urban Oil and Gas Distribution Technology China University of Petroleum-BeijingFuxue Road No.18Changping DistrictBeijing102249PR China Strategy&Implementation Department PipeChinaDongtucheng Road No.5Chaoyang DistrictBeijing100013PR China

Cooperation among enterprises can bring overall and individual performance improvement,and a smooth coordination method is ***,due to the lack of customized coordination methods,cooperation in the downstream oil supply chain cannot be carried out *** paper intends to propose a multi-party coordination method to promote cooperation between oil shippers and pipeline operator by optimizing oil transportation,oil substitution and pipeline pricing *** integrated game-theoretic modeling and analysis approach is developed to characterize the operation behaviors of all stakeholders in the downstream oil supply *** proposed mixed integer nonlinear programming model constrains supply and demand capacity,transportation routes,oil substitution rules and pipeline freight *** transformation and price discretization are introduced for model linear *** experiments are carried out in the oil distribution system in South *** results show that compared to the business-as-usual scheme,the new scheme saves transportation cost by 3.48%,increases pipeline turnover by 5.7%,and reduces energy consumption and emissions by 7.66%and 6.77%.It is proved that the proposed method improves the revenue of the whole system,achieves fair revenue distribution,and also improves the energy and environmental benefits of the oil supply chain.

关键词： Downstreamoil supplychain Multi-partycoordination Cooperative game Mixed integernonlinear programming model Pipeline transportation Revenue distribution

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Bacterial indole-3-propionic acid inhibits macrophage IL-1β production through targeting methionine metabolism

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Science China Life Sciences 2025年

作者： Ziyi Han Jian fu Aiyan Gong Wenkai ren State Key Laboratory of Livestock and Poultry Breeding College of Animal Science South China Agricultural University Animal Disease-resistant Nutrition Key Laboratory of Sichuan Province Sichuan Agricultural University China Institute of Veterinary Drug Control

The gut microbiota plays key roles in host health by shaping the host immune responses through their metabolites, like indole derivatives from tryptophan. However, the direct role of these indole derivatives in macrophage fate decision and the underlying mechanism remains unknown. Here, we found that bacterial indole-3-propionic acid(IPA) downregulates interleukin-1beta(IL-1β) production in M1 macrophages through inhibition of nuclear factor-kappa B(NF-κB) signaling. Mechanistically, IPA binds specifically with methionine adenosyltransferase 2A(MAT2A) to promote S-adenosylmethionine(SAM) synthesis, which facilitates the DNA methylation of ubiquitin-specific peptidase 16(USP16, a deubiquitinase), and in turn promotes Toll-like receptor 4(TLR4) ubiquitination and NF-κB inhibition. furthermore,IPA administration attenuates sepsis in mouse models induced by lipopolysaccharides(LPS), showcasing its potential as a microbial-derived adjunct in alleviating inflammation. Collectively, our findings reveal a newly found microbial metabolite-immune system regulatory pathway mediated by IPA.

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Gradient‑Layered MXene/Hollow Lignin Nanospheres Architecture Design for Flexible and Stretchable Supercapacitors

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Nano-Micro Letters 2025年第2期17卷 447-462页

作者： Haonan Zhang Cheng Hao Tongtong fu Dian Yu Jane Howe Kaiwen Chen Ning Yan Hao ren Huamin Zhai Jiangsu Provincial Key Lab of Sustainable Pulp and Paper Technology and Biomass Materials NanJing Forestry UniversityNanjing 210037People’s Republic of China Department of Chemical Engineering and Applied Chemistry University of Toronto200 College StreetTorontoON M5S 3E5Canada Department of Materials Science and Engineering University of Toronto184 College StreetTorontoON M5S 3E4Canada College of Materials Science and Engineering Nanjing Forestry UniversityNanjing 210037People’s Republic of China

With the rapid development of flexible wearable electronics,the demand for stretchable energy storage devices has *** this work,a novel gradient-layered architecture was design based on single-pore hollow lignin nanospheres(HLNPs)-intercalated two-dimensional transition metal carbide(Ti_(3)C_(2)T_(x) MXene)for fabricating highly stretchable and durable *** depositing and inserting HLNPs in the MXene layers with a bottom-up decreasing gradient,a multilayered porous MXene structure with smooth ion channels was constructed by reducing the overstacking of MXene ***,the micro-chamber architecture of thin-walled lignin nanospheres effectively extended the contact area between lignin and MXene to improve ion and electron accessibility,thus better utilizing the pseudocapacitive property of *** these strategies effectively enhanced the capacitive performance of the *** addition,HLNPs,which acted as a protective phase for MXene layer,enhanced mechanical properties of the wrinkled stretchable electrodes by releasing stress through slip and deformation during the stretch-release cycling and greatly improved the structural integrity and capacitive stability of the *** electrodes and symmetric flexible all-solid-state supercapacitors capable of enduring 600%uniaxial tensile strain were developed with high specific capacitances of 1273 mF cm^(−2)(241 F g^(−1))and 514 mF cm^(−2)(95 F g^(−1)),***,their capacitances were well preserved after 1000 times of 600%stretch-release *** study showcased new possibilities of incorporating biobased lignin nanospheres in energy storage devices to fabricate stretchable devices leveraging synergies among various two-dimensional nanomaterials.

关键词： Hollow lignin nanospheres MXene Gradient-layered architecture Wrinkled electrodes Stretchable supercapacitors

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De novo synthesis of atropisomeric benzofurans via Cu/SPDO complex catalyzed asymmetric formal [3 + 2] annulation

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Science China Chemistry 2025年第1期 174-180页

作者： Fan-Xiao Meng Xing-Yu Wang Ka Lu Ju-Song Yang fu-Min Zhang Ai-Jun Ma Bao Du Yong-Qiang tu State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering Lanzhou University School of Chemistry and Chemical Engineering Shanghai Jiao Tong University School of Biotechnology and Health Sciences Wuyi University

Herein, the de novo synthesis of atropisomeric benzofurans through the Cu/spirocyclic-pyrrolidine-oxazoline(SPDO) complex catalyze asymmetric formal [3 + 2] cycloaddition between quinones and ynamides is explored, producing a range of structurally diverse axially chiral benzofurans in satisfactory yields with good to excellent enantioselectivities. furthermore, density functional theory calculations were applied to explain the possible reaction mechanism.

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Ectopic adrenal cortical adenoma in the gastric wall:Case report

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World Journal of Gastroenterology 2013年第5期19卷 778-780页

作者： Pei-tu ren Hong fu Xiao-Wen He Department of General Surgery Shaoxing People's Hospital Shaoxing Hospital of Zhejiang University

Ectopic adrenal cortical neoplasms are extremely rare. Ectopic adrenocortical tissue can be found in locations such as the celiac axis,the broad ligament,the adnexa of the testes,and the spermatic cord;however,they rarely involve the *** report an unusual case of a patient with an ectopic adrenal cortical adenoma in the gastric *** patient was a 72-year old female admitted to our hospital with upper abdominal *** examination revealed tenderness below the xiphoid *** computed tomography and fibergastroscopy revealed a mass on the lesser curvature side of the gastric antrum;it was initially diagnosed as a gastric stromal *** adequate preparation,the patient underwent *** the procedure,we found a 30 mm×30 mm mass with medium density in the lesser curvature near the gastric antrum within the *** immunohistochemistry examination, we corrected the diagnosis to an ectopic adrenal cortical adenoma;the tumor was nonfunctional.

关键词： Ectopic adrenal cortical neoplasms Adrenal adenoma Stomach Adult Nonfunctional adenoma

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A new type electrohydraulic servo valve based on magnetic shape memory alloy

A new type electrohydraulic servo valve based on magnetic sh...

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第八届中国功能材料及其应用学术会议

作者： tu fu-quan MAO Yang XU ren-bo Key Laboratory of Metallurgical Equipment and Control Technology Ministry of EducationCollege of Machinery and AutomationWuhanUniversity of Science and Technology

ISBN: (纸本)9783037859698

In this paper,the magnetically controlled characteristic and shape variation mechanism magnetic shape memory alloys(MSMA) sample are studied through the servo valve actuatorbased on *** MSMA is a new type of functional materials,which has huge drivingforce and large controllability *** kind of actuator is designed by differential modeof MSMA,employing bias coils to generate biasing magnetic field and applying field coils to provide magnetic field which is *** between displacement of the new actuator and time is got by numerical simulation using Maxwell ***,motivated by the simulation results,the rationality of structural design of the new type of actuator is validated.

关键词： MSMA actuator Field coils Bias magnetic field Maxwell simulation

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Shuffled Mutation Glowworm Swarm Optimization and Its Application

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Chinese Journal of Electronics 2019年第4期28卷 822-828页

作者： WANG Hongbo ren Xuena tu Xuyan School of Computer and Communication Engineering Beijing Key Lab of Knowledge Engineering for Materials ScienceUniversity of Science and Technology Beijing Institute of Information Engineering Chinese Academy of Sciences

If the glowworm individual has no memory during its movement, and the decision of next direction is limited to its current position. It is precisely these reasons mentioned above that make the basic Glowworm Swarm Optimization easy to trap into the local optimum. In order to solve the problem, this paper suggests a Shuffled mutation glowworm swarm optimization(SMGSO), which combines the thought of Shuffled Frog Leaping with Glowworm Swarm Optimization. Making use of a grouping idea of Shuffled Mutation, the glowworm swarm is divided into several subgroups. The location updating of each individual is not only influenced by the brightest node in neighbour scope, but also by the brightest one in their local subgroup, meanwhile the locations of those isolated nodes are updated by the difference mutation of the global optimum and local optimal. In group shuffling stage, an orthogonal strategy can guide the whole population to generate their offspring. The performance of this proposed approach is examined by well-known10 benchmark functions, and its obtained results are compared with what other variants hold. The experimental analysis show that the Shuffled mutation glowworm swarm optimization is effective and outperforms other variants in terms of solving multi-modal function optimization problems, and the proposed approach can improve the positioning accuracy of the centroid localization.

关键词： Orthogonal strategy Shuffled frog leaping Wireless sensor centroid location

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A New Class of p-Ary Sequence Families with Low Correlation Property via m-Sequence

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Chinese Journal of Electronics 2016年第4期25卷 678-685页

作者： ren Wenli fu Fangwei College of Mathematical Sciences Dezhou University Chern Institute of Mathematics Nankai University

For an odd prime p which is congruent to 3 module 4 and an odd integer k,we investigate the upper bound on the magnitude of cross correlation values of a p-ary m-sequence s(t) and its decimated sequences s(dt + l) for a decimation value *** the above upper bound of the magnitude of cross correlation values of pary m-sequence and its decimated sequences,we construct a new class of p-ary sequence families with low correlation property via m-sequence.

关键词： Cross correlation Decimated sequence m-sequence Quadratic form

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An Improved Torque Sensorless Speed Control Method for Electric Assisted Bicycle With Consideration of Coordinate Conversion

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IEEE/CAA Journal of Automatica Sinica 2020年第6期7卷 1575-1584页

作者： Tinghua Li Qinghua Yang Xiaowei tu Bin ren School of Mechatronic Engineering and Automation Shanghai UniversityShanghai 200444China

In this paper,we propose an improved torque sensorless speed control method for electric assisted bicycle,this method considers the coordinate conversion.A low-pass filter is designed in disturbance observer to estimate and compensate the variable disturbance during cycling.A DC motor provides assisted power driving,the assistance method is based on the realtime wheel angular velocity and coordinate system *** effect of observer is proved,and the proposed method guarantees stability under *** is also compared to the existing methods and their performances are illustrated through *** proposed method improves the performance both in rapidity and stability.

关键词： Coordinate conversion disturbance observer electric assisted power inertial measurement unit speed control

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Role of stair-climbing test in predicting postoperativecardiopulmonary complications in elderly patients with biliarydiseases

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Frontiers of Medicine 2010年第1期4卷 77-81页

作者： Pei-tu ren Bao-Chun LU Zhi-Liang CHEN Hong fu Department of Hepatobiliary Surgery Shaoxing People’s HospitalShaoxing 312000China

One hundred and twenty-six patients above 80 years old with biliary diseases undergoing operations in Shaoxing People’s Hospital from Jan.2002 to Jan.2007 were analyzed *** patients performed a preoperative stair-climbing test,and the risks for cardio-pulmonary complications were evaluated with pair-matching and linear correlations analysis between stair-climbing height(h)and left ventricular ejective factor(EF),forced vital capacity(FVC)and forced expiratory volume in one second(FEV1).There was a signiﬁcant difference in the incidence of cardiopulmonary complications among different stair-climbing ***-climbing heights were positively related with EF,FVC and *** suggests that the stair-climbing test is an effective and simple method for predicting cardiopulmonary complica-tions in elderly patients with biliary diseases.

关键词： biliary disease cardiopulmonary complica-tion stair-climbing test

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