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Heat Transfer and Friction Characteristics of Printed Circuit Heat Exchangers with Different Channel Structures for S-CO_(2) Power System

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Journal of Thermal Science 2024年第3期33卷 1132-1147页

作者： jiang Tao LI Mingjia Key Laboratory of Thermo-Fluid Science and Engineering of Ministry of Education School of Energy and Power EngineeringXi’an Jiaotong UniversityXi’an710049China School of Mechanical Engineering Beijing Institute of TechnologyBeijing100081China

Printed circuit heat exchanger(PCHE)has been widely used in supercritical carbon dioxide(S-CO_(2))power systems because of its high heat transfer efficiency and good ***,due to the large variety of PCHE configurations,channel selection in practical applications lacks a ***,this paper discussed the heat transfer and friction characteristics and the synergy of three fields in the channel under the guidance of the field synergy principle for four typical PCHE ***,the comprehensive performance of four channels was ***,the heat transfer and friction factor correlations for S-CO_(2)in four channels were *** findings demonstrate that the synergy of velocity and pressure fields of the straight channel PCHE is better(β≈180°),so its resistance loss is relatively *** zigzag and sinusoidal wavy channels and the airfoil fins can reduce the angle a between the temperature gradient and velocity,thus enhancing the heat *** sinusoidal wavy channel can reduce flow resistance compared to the zigzag channel due to the rounded *** streamlined airfoil structure can guide the flow and reduce backflow,thus reducing resistance *** the range of Re studied in this paper,the maximum error of the proposed heat transfer and friction factor correlations of PCHE is 7.0%,which shows good fitting *** research in this paper can provide a reference for the selection and design of PCHE with different channel configurations.

关键词： printed circuit heat exchanger supercritical carbon dioxide typical channel structure field synergy analysis

Dietary curcumin alleviates intestinal damage induced by ochratoxin A in juvenile grass carp(Ctenopharyngodon idella):Necroptosis and inflammatory responses

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Animal Nutrition 2024年第3期18卷 119-132页

作者： Piao Zhao Wei Dan jiang Pei Wu Yang Liu Hong Mei Ren Xiao Wan jin Lin Feng Xiao Qiu Zhou Animal Nutrition Institute Sichuan Agricultural UniversityChengdu 611130SichuanChina Fish Nutrition and Safety Production University Key Laboratory of Sichuan Province Sichuan Agricultural UniversityChengdu 611130SichuanChina Key Laboratory of Animal Disease-Resistance Nutrition Ministry of EducationMinistry of Agriculture and Rural AffairsKey Laboratory of Sichuan ProvinceSichuan611130China

Ochratoxin A(OTA)is one of the most common pollutants in aquatic *** a first line of defense,intestinal barriers could be utilized against OTA in order to prevent *** product supplementation is one of the most popular strategies to alleviate toxicity induced by mycotoxins,but there is a lack of knowledge about how it functions in the teleost *** this study,720 juvenile grass carp of about 11 g were selected and four treatment groups(control group,OTA group,curcumin[Cur]group,and OTA+Cur group)were set up to conduct a 60-day growth *** the test,the growth performance and intestinal health related indexes of grass carp were *** addition of dietary Cur could have the following main results:(1)inhibit absorption and promote efflux transporters mRNA expression,reducing the residuals of OTA,(2)decrease oxidative stress by reducing oxidative damage and enhancing the expression of antioxidant enzymes,(3)promote mitochondrial fusion proteins to inhibit the expression of mitotic proteins and mitochondrial autophagy proteins and enhance mitochondrial function,(4)reduce necroptosis-related gene expression through inhibiting the tumor necrotic factor receptor-interacting protein kinase/mixed lineage kinase domain-like pathway,(5)reduce the expression of pro-inflammatory factors by inhibiting the Toll-like receptor 4/nuclear factor-κB signaling pathway to alleviate the intestinal inflammatory *** summary,the results suggested that Cur could alleviate OTA-induced intestinal damage by enhancing antioxidant capacity and mitochondrial function as well as reducing necroptosis and inflammation in the grass carp *** study provided a theoretical basis and production implications for dietary Cur that could improve growth performance and alleviate the intestinal damage induced by OTA in fish.

关键词： Curcumin Ochratoxin A Grass carp growth performance Mid-intestine mitochondria function Necroptosis

Asymptomatic low-grade appendiceal mucinous neoplasm:A case report

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World Journal of Clinical Cases 2024年第2期12卷 361-366页

作者： Min-Quan Yao Yu-Peng jiang Yuan-Yu Wang Yi-Ping Mou jin-Xing Fan Department of Gastrointestinal Surgery Tongxiang First People’s HospitalJiaxing 314500Zhejiang ProvinceChina Department of General Surgery Zhejiang Provincial People’s HospitalHangzhou 310014Zhejiang ProvinceChina Endoscopy Center Tongxiang First People’s HospitalJiaxing 314500Zhejiang ProvinceChina

BACKGROUND Low-grade appendiceal neoplasms(LAMN)are characterized by low incidence and atypical clinical presentations,often leading to misdiagnosis as acute or chronic appendicitis before *** primary diagnostic tool for LAMN is abdominal computed tomography(CT)*** resection remains the cornerstone of LAMN management,necessitating en bloc tumor excision to minimize the risk of iatrogenic ***,known for its minimal invasiveness,reduced postoperative discomfort,and expedited recovery,is a safe and reliable approach for LAMN *** the possibility of pseudomyxoma peritonei development,appendectomy and partial appendectomy generally result in negative tumor margins and favorable outcomes,which can be attributed to the disease’s slow growth and lower *** SUMMARY A 71-year-old male patient was admitted to our hospital with a pelvic spaceoccupying lesion detected 1 mo *** examination showed a soft abdomen without tenderness or rebound and no palpable *** shifting dullness was noted,and digital rectal examination revealed no palpable *** revealed a raised,smooth-surfaced mass measuring 3.0 cm in the *** contrast-enhanced CT showed a markedly thickened and dilated appendix with visible cystic *** surgery was performed and revealed a significantly dilated appendix,leading to laparoscopic resection of the appendix and part of the ***-surgical pathologic analysis confirmed *** patient received symptomatic and supportive post-operative care and was discharged on postoperative day 4 without complications such as abdominal bleeding,intestinal obstruction,or incision *** tumor recurrence was observed during a 7-mo follow-up *** LAMN is a rare disease that lacks specific clinical *** CT plays a crucial role in diagnosing LAMN,and laparoscopic surgery is a safe and effective diagnostic and therapeutic approach.

关键词： Low-grade appendiceal mucinous neoplasm Pseudomyxoma peritonei Computed tomography Laparoscopy appendectomy Case report

Establishing the link between D-mannose and juvenile grass carp(Ctenopharyngodon idella):Improved growth and intestinal structure associated with endoplasmic reticulum stress,mitophagy,and apical junctional complexes

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Animal Nutrition 2024年第3期18卷 450-463页

作者： Chong Zhang Lin Feng Pei Wu Yang Liu Xiaowan jin Hongmei Ren Hua Li Fali Wu Xiaoqiu Zhou Weidan jiang Animal Nutrition Institute Sichuan Agricultural UniversityChengdu 611130China Fish Nutrition and Safety Production University Key Laboratory of Sichuan ProvinceSichuan Agricultural UniversityChengdu 611130China Key Laboratory of Animal Disease-Resistance Nutrition Ministry of EducationMinistry of Agriculture and Rural AffairsKey Laboratory of Sichuan ProvinceChengdu 611130China

D-mannose,essential for protein glycosylation,has been reported to have immunomodulatory effects and to maintain intestinal flora *** addition to evaluating growth performance,we examined the impact of D-mannose on the structure of epithelial cells and apical junction complexes in the animal *** 1800 grass carp(16.20±0.01 g)were randomly divided into six treatments with six replicates of 50 fish each and fed with six different levels of D-mannose(0.52,1.75,3.02,4.28,5.50 and 6.78 g/kg diet)for 70 *** study revealed that D-mannose increased feed intake(P 0.05).D-mannose supplementation at 1.75 g/kg increased crude protein content in fish and lipid production value(P<0.05).D-mannose supplementation at 4.28 g/kg increased intestinal length,intestinal weight and fold height of grass carp compared to the control group(P<0.05).This improvement may be attributed to the phosphomannose isomerase(PMI)-mediated enhancement of *** study found that D-mannose supplementation at 4.28 or 3.02 g/kg reduced serum diamine oxidase activity or D-lactate content(P<0.05)and improved cellular and intercellular structures for the first *** improvement of cellular redox homeostasis involves alleviating endoplasmic reticulum(ER)stress through the inositol-requiring enzyme 1(IRE1),RNA-dependent protein kinase-like ER kinase(PERK),and activating transcription factor 6(ATF6)signaling *** alleviation of ER stress may be linked to the phosphomannomutase(PMM)-mediated enhancement of protein *** addition,ubiquitin-dependent[PTEN-induced putative kinase 1(PINK1)/Parkin]and ubiquitin-independent[BCL2-interacting protein 3-like(BNIP3L),BCL2-interacting protein 3(BNIP3),and FUN14 domain containing 1(FUNDC1)]mitophagy may play a role in maintaining cellular redox *** enhancement of intercellular structures includes enhancing tight junction and adherent junction structures,which may be closely associated with the small Rho GTPase pr

关键词： Grass carp(Ctenopharyngodon idella) D-mannose Intestine structure Endoplasmic reticulum stress Mitophagy Apical junctional complex

Co/CoO heterojunction rich in oxygen vacancies introduced by O2 plasma embedded in mesoporous walls of carbon nanoboxes covered with carbon nanotubes for rechargeable zinc-air battery

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Carbon Energy 2024年第7期6卷 14-25页

作者： Leijun Ye Weiheng Chen Zhong-Jie jiang Zhongqing jiang Key Laboratory of Optical Field Manipulation of Zhejiang Province Department of PhysicsZhejiang Sci-Tech UniversityHangzhouChina Department of Mechanical Engineering Ningbo University of TechnologyNingboChina Guangzhou Key Laboratory for Surface Chemistry of Energy Materials Guangdong Engineering and Technology Research Center for Surface Chemistry of Energy MaterialsCollege of Environment and EnergySouth China University of TechnologyGuangzhouChina

Herein,Co/CoO heterojunction nanoparticles(NPs)rich in oxygen vacancies embedded in mesoporous walls of nitrogen-doped hollow carbon nanoboxes coupled with nitrogen-doped carbon nanotubes(P-Co/CoOV@NHCNB@NCNT)are well designed through zeolite-imidazole framework(ZIF-67)carbonization,chemical vapor deposition,and O_(2) plasma *** a result,the threedimensional NHCNBs coupled with NCNTs and unique heterojunction with rich oxygen vacancies reduce the charge transport resistance and accelerate the catalytic reaction rate of the P-Co/CoOV@NHCNB@NCNT,and they display exceedingly good electrocatalytic performance for oxygen reduction reaction(ORR,halfwave potential[EORR,1/2=0.855 V *** hydrogen electrode])and oxygen evolution reaction(OER,overpotential(η_(OER,10)=377mV@10mA cm^(−2)),which exceeds that of the commercial Pt/C+RuO_(2) and most of the formerly reported ***,both the aqueous and flexible foldable all-solid-state rechargeable zinc-air batteries(ZABs)assembled with the P-Co/CoOV@NHCNB@NCNT catalyst reveal a large maximum power density and outstanding long-term cycling ***-principles density functional theory calculations show that the formation of heterojunctions and oxygen vacancies enhances conductivity,reduces reaction energy barriers,and accelerates reaction kinetics *** work opens up a new avenue for the facile construction of highly active,structurally stable,and cost-effective bifunctional catalysts for ZABs.

关键词： heterojunction oxygen evolution/reduction reaction oxygen vacancies rechargeable zinc–air battery three‐dimensional nitrogen‐doped hollow carbon nanoboxes

Design of dual-functional protic porous ionic liquids for boosting selective extractive desulfurization

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Petroleum Science 2024年第4期21卷 2817-2829页

作者： jin-Rui Zhang Jie Yin jing He Hong-Shun Ran Wei jiang Hong-Ping Li Wen-Shuai Zhu Hua-Ming Li Ming Zhang School of the Environment and Safety Engineering & Institute for Energy Research Jiangsu University School of Chemistry and Chemical Engineering Jiangsu University

Porous ionic liquids have demonstrated excellent performance in the field of separation, attributed to their high specific surface area and efficient mass transfer. Herein, task-specific protic porous ionic liquids(PPILs) were prepared by employing a novel one-step coupling neutralization reaction strategy for extractive desulfurization. The single-extraction efficiency of PPILs reached 75.0% for ***, adding aromatic hydrocarbon interferents resulted in a slight decrease in the extraction efficiency of PPILs(from 45.2% to 37.3%, 37.9%, and 33.5%), indicating the excellent extraction selectivity of PPILs. The experimental measurements and density functional theory calculations reveal that the surface channels of porous structures can selectively capture dibenzothiophene by the stronger electrophilicity(Eint(HS surface channel/DBT)=-39.8 kcal mol-1), and the multiple extraction sites of ion pairs can effectively enrich and transport dibenzothiophene from the oil phase into PPILs through π...π, C-H...π and hydrogen bonds interactions. Furthermore, this straightforward synthetic strategy can be employed in preparing porous liquids, offering new possibilities for synthesizing PPILs with tailored functionalities.

关键词： Protic porous ionic liquids Extractive desulfurization Selectivity Density functional theory

Review on laser directed energy deposited aluminum alloys

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International Journal of Extreme Manufacturing 2024年第2期6卷 84-131页

作者： Tian-Shu Liu Peng Chen Feng Qiu Hong-Yu Yang Nicholas Tan Yew jin Youxiang Chew Di Wang Ruidi Li Qi-Chuan jiang Chaolin Tan Singapore Institute of Manufacturing Technology(SIMTech) Agency for ScienceTechnology and Research(A∗STAR)5 Cleantech LoopSingapore 636732Singapore State Key Laboratory of Automotive Simulation and Control Jilin UniversityChangchun 130025People’s Republic of China Key Laboratory of Automobile Materials Ministry of Education and Department of Materials Science and EngineeringJilin UniversityChangchun 130025People’s Republic of China School of Mechanical&Automotive Engineering South China University of TechnologyGuangzhou 510640People’s Republic of China State Key Laboratory of Powder Metallurgy Central South UniversityChangsha 410083People’s Republic of China

Lightweight aluminum(Al)alloys have been widely used in frontier fields like aerospace and automotive industries,which attracts great interest in additive manufacturing(AM)to process high-value Al *** a mainstream AM technique,laser-directed energy deposition(LDED)shows good scalability to meet the requirements for large-format component manufacturing and ***,LDED Al alloys are highly challenging due to their inherent poor printability(*** laser absorption,high oxidation sensitivity and cracking tendency).To further promote the development of LDED high-performance Al alloys,this review offers a deep understanding of the challenges and strategies to improve printability in LDED Al *** porosity,cracking,distortion,inclusions,element evaporation and resultant inferior mechanical properties(worse than laser powder bed fusion)are the key challenges in LDED Al *** parameter optimizations,in-situ alloy design,reinforcing particle addition and field assistance are the efficient approaches to improving the printability and performance of LDED Al *** underlying correlations between processes,alloy innovation,characteristic microstructures,and achievable performances in LDED Al alloys are *** benchmark mechanical properties and primary strengthening mechanism of LDED Al alloys are *** review aims to provide a critical and in-depth evaluation of current progress in LDED Al *** opportunities and perspectives in LDED high-performance Al alloys are also outlined.

关键词： additive manufacturing laser directed energy deposition(LDED) aluminum alloys printability aluminum matrix composite auxiliary fields mechanical properties

Elaborately engineering of lipid nanoparticle for targeting delivery of siRNA and suppressing acute liver injury

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Chinese Chemical Letters 2024年第2期35卷 323-328页

作者： Qiu Wang Qikun jiang Dan Li Zimeng Yang Lin Gao Fan Liu Chang Li Yao Feng Zhonggui He Cong Luo jin Sun Department of Pharmaceutics Wuya College of InnovationShenyang Pharmaceutical UniversityShenyang 110016China Kangya of Ningxia Pharmaceutical Co.Ltd. Yinchuan 750000China

Small interfering RNA(siRNA)-based gene silencing has been considered as a potential therapy modality against inflammatory ***,the effective delivery of siRNA to desired destination still remains challenging due to poor stability,high molecular weight and negative ***,ionizable lipid nanoparticle(LNP)has been extensively used as vector for effective delivery of ***,we report a mannose-modified LNP(M-MC_(3) LNP@TNFα)loading tumor necrosis factorα(TNFα)siRNA for targeting liver macrophages,achieving effectively inhibit acute liver *** M-MC_(3) LNP@TNFαnot only increases the internalization of LNP by macrophages,but also enhances the gene silencing efficiency of TNFαin ***,the M-MC_(3) LNP@TNFαexhibits higher accumulation in liver of healthy mice than that of MC_(3) LNP@TNFα(un-modified LNP)owing to the targeting effect of *** expected,the M-MC_(3) LNP@TNFαsignificantly suppresses the expression of TNFαand ameliorates liver damage in acute liver injury *** a LNP targeting siRNA delivery holds great potential for the treatment of diseases associated with liver in the future.

关键词： Lipid nanoparticle Targeting siRNA delivery Acute liver injury Gene silencing Tumor necrosis factorα

Double quantum images encryption scheme based on chaotic system

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Chinese Physics B 2024年第4期33卷 305-320页

作者：蒋社想李杨石锦张茹 School of Computer Science and Engineering Anhui University of Science and TechnologyHuainan 232001China Anhui Key Laboratory of Mine Intelligent Equipment and Technology Anhui University of Science&TechnologyHuainan 232001China

This paper explores a double quantum images representation(DNEQR)model that allows for simultaneous storage of two digital images in a quantum superposition ***,a new type of two-dimensional hyperchaotic system based on sine and logistic maps is investigated,offering a wider parameter space and better chaotic behavior compared to the sine and logistic *** on the DNEQR model and the hyperchaotic system,a double quantum images encryption algorithm is ***,two classical plaintext images are transformed into quantum states using the DNEQR ***,the proposed hyperchaotic system is employed to iteratively generate pseudo-random *** chaotic sequences are utilized to perform pixel value and position operations on the quantum image,resulting in changes to both pixel values and ***,the ciphertext image can be obtained by qubit-level diffusion using two XOR operations between the position-permutated image and the pseudo-random *** corresponding quantum circuits are also *** results demonstrate that the proposed scheme ensures the security of the images during transmission,improves the encryption efficiency,and enhances anti-interference and anti-attack capabilities.

关键词： double quantum images encryption chaotic system pixel scrambling XOR operation