检索结果-南通市图书馆

Applications of optical control materials based on localized surface plasmon resonance effect in smart windows

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Tungsten 2024年第4期6卷 711-731页

作者： Na ta Jing-Yi Huang Shuai He W.Hanggai Luo-Meng Chao College of Science Inner Mongolia University of Science and Technology Fundamental Aspects of Materials and energy Faculty of Applied Sciences Delft University of Technology

The increasing energy consumption in buildings due to cooling and heating,accounting for over one-third of the total energy consumption in society,has become a growing ***,reducing building energy consumption has become an urgent issue for countries *** serve as the primary channel for energy exchange between the indoor and the outdoor *** providing natural lighting for occupants,windows are also the weakest link in terms of energy *** recent years,there have been some new and superior coating glass technologies compared to traditional low-emissivity *** coatings utilize various optical functional materials to regulate the incident sunlight,aiming to save cooling and heating energy ***,such as tungsten-based compounds,vanadium dioxide,lanthanum hexaboride,or copper monosulfide,can absorb near-infrared light to effectively control solar radiation by leveraging the localized surface plasmon resonance(LSPR) effect of *** paper mainly introduces the micro-mechanisms of these materials and provides a detailed summary of the latest advancements in coating *** application and effects of these coatings in building energy conservation are ***,the challenges and prospects of LSPRbased smart windows are *** is expected that this review will provide new insights into the application of smart windows in green buildings.

关键词： Copper monosulfide Lanthanum hexaboride Localized surface plasmon resonance (LSPR) Tungsten Tungsten-based compounds Vanadium dioxide

Phylogenetic placement of bizarre karschiellid earwigs

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Insect Science 2024年第3期31卷 989-992页

作者： Petr Kocárek Ivona Horká Vojtěch Bonczek Markéta Kirstová Department of Biology and ecology University of OstravaOstravaCzech Republic

Dear editor,Karschiellidae are a mysterious group of earwigs that attract attention not only because of their interesting appearance and unexplained way of life but also mainly due to their unclear *** phylogenetic relationships of karschiellids remain speculative even 120 years since the family was described,above all due to the unavailability of DNA-grade material for molecular phylogenetic *** study includes successfully sequenced representatives of the Karschiellidae for the first time,and a probable evolutionary scheme and natural classification of karschiellids are proposed based on the constructed multigene phylogeny.

关键词： classification. phylogeny evolutionary

Protection of steel hooks embedded in glass-fiber-reinforced concrete against macrocell corrosion

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Petroleum Research 2024年第2期9卷 317-326页

作者： Husnu Gerengi Muhammed Maraşlı Marziya Rizvi Beni Kohen Ismail taşkıran Corrosion Research Laboratory Department of Mechanical EngineeringDuzce University81620DuzceTurkey Department of engineering and Applied Sciences University of BergamoBGItaly Fibrobeton Company R&D Center DuzceTurkey Department of Chemistry Babasaheb Bhimrao Ambedkar UniversityLucknow226003U.PIndia

This study evaluated the corrosion behavior of steel hooks embedded in GFRC,which were protected by a zinc-rich(96%Zn)galvanizing *** coating provided the hooks with active cathodic protection and a passive physical *** corrosion may form when the anode is smaller than the total steel ***,the steel hooks at the embedment juncture were additionally sealed against water ingress and air exchange using a construction *** study was conducted in three phases in a salt-spray ***,the electrogalvanized steel hooks embedded in GFRC were allowed to freely corrode for 7 *** the second phase,the electrogalvanized steel hooks were painted with the zinc-rich coating and observed over 7 *** the third phase,the steel hooks were protected by the zinc-rich coating together with a primer and construction sealant,and observed over 7 *** evaluate the electrogalvanized hooks and the corrosion products formed,the thickness of the material was *** on the metal surface was inferred by studying the surface morphology of the hooks at various points of contact and after different periods of time.

关键词： Steel rebars Concrete corrosion GFRC Galvanization Sealant

Screening COVID-19 from chest X-ray images by an optical diffractive neural network with the optimized F number

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Photonics Research 2024年第7期12卷 1410-1426页

作者： JIALONG WANG SHOUYU CHAI WeNTING GU BOYI LI XUe JIANG YUNXIANG ZHANG HONGeN LIAO XIN LIU DeAN ta Academy for engineering and Technology Fudan UniversityShanghai 200433China Center for Biomedical engineering Fudan UniversityShanghai 200433China Department of Chemistry Fudan UniversityShanghai 200433China Department of Biomedical engineering School of MedicineTsinghua UniversityBeijing 100084China

The COVID-19 pandemic continues to significantly impact people's lives worldwide, emphasizing the critical need for effective detection methods. Many existing deep learning-based approaches for COVID-19 detection offer high accuracy but demand substantial computing resources, time, and energy. In this study, we introduce an optical diffractive neural network(ODNN-COVID), which is characterized by low power consumption, efficient parallelization, and fast computing speed for COVID-19 detection. In addition, we explore how the physical parameters of ODNN-COVID affect its diagnostic performance. We identify the F number as a key parameter for evaluating the overall detection capabilities. Through an assessment of the connectivity of the diffractive network, we established an optimized range of F number, offering guidance for constructing optical diffractive neural networks. In the numerical simulations, a three-layer system achieves an impressive overall accuracy of 92.64% and 88.89% in binary-and threeclassification diagnostic tasks. For a single-layer system, the simulation accuracy of 84.17% and the experimental accuracy of 80.83% can be obtained with the same configuration for the binary-classification task, and the simulation accuracy is 80.19% and the experimental accuracy is 74.44% for the three-classification task. Both simulations and experiments validate that the proposed optical diffractive neural network serves as a passive optical processor for effective COVID-19 diagnosis, featuring low power consumption, high parallelization, and fast computing capabilities. Furthermore, ODNN-COVID exhibits versatility, making it adaptable to various image analysis and object classification tasks related to medical fields owing to its general architecture.

关键词： neural network offering

维普期刊数据库

Ag-GST/HfO_(x)-based unidirectional threshold switching selector with low leakage current and threshold voltage distribution for high-density cross-point arrays

在线全文

学校读者我要写书评

暂无评论

Rare Metals 2024年第1期43卷 280-288页

作者： Kyoung-Joung Yoo Dae-Yun Kang Nahyun Kim Ho-Jin Lee ta-Hyeong Kim taeho Kim tae Geun Kim School of electrical engineering Korea UniversitySeoul 02841Republic of Korea

The use of electrochemical-metallization-based volatile threshold switching selectors in cross-point arrays has been widely explored owing to their high on-off ratios and simple ***,these devices are unsuitable for cross-point architectures because of the difficulty in controlling the random filament formation that results in large fluctuations in the threshold voltage during *** this study,we investigated the unidirectional threshold transition characteristics associated with an Ag/GST/HfO_(x)/Pt-based bilayer selector and demonstrated the occurrence of a low leakage current(e threshold voltage(Δ0.11 V).The bilayer structure could control the filament formation in the intermediate state through the insertion of an HfO_(x) tunneling *** stacking a bilayer selector with NiO_(x)based resistive random-access memory,the leakage and programming currents of the device could be significantly *** the crossbar array configuration,we performed equivalent circuit analysis of a one-selector oneresistor(1S1R) devices and estimated the optimal array size to demonstrate the applicability of the proposed *** maximum acceptable crossbar array size of the 1S1R device with the Ag/GST/HfO_(x)/Pt/Ti/NiO_(x)/Pt structure was 5.29×10^(14)(N^(2),N=2.3×10^(7)).

关键词： Selector device Tunneling barrier Threshold switching Sputtering 1S1R Cross-point array

维普期刊数据库

endoscopic clipping of gastrojejunostomy leakage following Whipple procedure: A case report

在线全文

学校读者我要写书评

暂无评论

World Journal of Gastrointestinal Surgery 2024年第9期16卷 3041-3047页

作者： Bahtiyar Muhammedoğlu Oguzhan Fatih ay Department of General Surgery Kahramanmaras Sutcuİmam University Medical FacultyKahramanmaras 46040Türkiye Department of General Surgery Kahramanmaras Necip Fazıl City HospitalKahramanmaras 46140Türkiye

BACKGROUND Currently,perioperative complications of classic Whipple surgery occur at a rate of approximately 40%.Common complications include delayed gastric emptying,pancreatic fistula,and bile leakage,whereas gastrojejunostomy(GJ)leakage is *** SUMMARY This case report will assess the management of a GJ leak in a 71-year-old male patient following the Whipple *** surgery,the patient was trans-ferred to the clinic after four days of intensive care,where vacuum therapy was used to handle a developing subcutaneous *** patient,who had bile in the drains and incision during follow-up,underwent endoscopic examination on the 21st day after the *** opening of approximately 4 mm was observed in the GJ anastomosis during *** titanium clips were used to close the *** drainage of bile decreased to less than 50 mL on the first day after the procedure,and the patient's oral intake was *** Current literature reports a GJ leakage rate of 0.54%following Whipple surgery,with clinical findings lasting on average between 4-34 *** was the main form of therapy for this case,with a success rate of 84%,and percutaneous drai-nage was also utilized as a treatment *** case report is the first to docu-ment endoscopic treatment of GJ leaks following the classic Whipple procedure.

关键词： Pancreas cancer Whipple procedure Gastrojejunostomy Leakage endos-copic management Case report

Machine learning-based comparison of factors influencing estimated glomerular filtration rate in Chinese women with or without nonalcoholic fatty liver

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Clinical Cases 2024年第15期12卷 2506-2521页

作者： I-Chien Chen Lin-Ju Chou Shih-Chen Huang ta-Wei Chu Shang-Sen Lee Department of Nursing Kaohsiung Armed Forces General HospitalKaohsiung 802Taiwan Department of Obstetrics and Gynecology Tri-Service General HospitalNational Defense Medical CenterTaipei 114Taiwan Chief executive Officer's Office MJ Health Research FoundationTaipei 114Taiwan Department of Urology Taichung Tzu Chi HospitalBuddhist Tzu Chi Medical FoundationTaichung 427Taiwan School of Medicine Tzu Chi UniversityHualian 970Taiwan Department of Urology Tri-Service General HospitalNational Defense Medical CenterTaipei 114Taiwan

BACKGROUND The prevalence of non-alcoholic fatty liver(NAFLD)has increased *** with NAFLD are known to have higher chance for renal function *** past studies used traditional multiple linear regression(MLR)to identify risk factors for decreased estimated glomerular filtration rate(eGFR).However,medical research is increasingly relying on emerging machine learning(Mach-L)*** present study enrolled healthy women to identify factors affecting eGFR in subjects with and without NAFLD(NAFLD+,NAFLD-)and to rank their *** To uses three different Mach-L methods to identify key impact factors for eGFR in healthy women with and without *** A total of 65535 healthy female study participants were enrolled from the taiwan MJ cohort,accounting for 32 independent variables including demographic,biochemistry and lifestyle parameters(independent variables),while eGFR was used as the dependent *** from MLR,three Mach-L methods were applied,including stochastic gradient boosting,eXtreme gradient boosting and elastic *** of estimation were used to define method accuracy,where smaller degree of error indicated better model *** Income,albumin,eGFR,High density lipoprotein-Cholesterol,phosphorus,forced expiratory volume in one second(FeV1),and sleep time were all lower in the NAFLD+group,while other factors were all significantly higher except for smoking ***-L had lower estimation errors,thus outperforming *** Model 1,age,uric acid(UA),FeV1,plasma calcium level(Ca),plasma albumin level(Alb)and T-bilirubin were the most important factors in the NAFLD+group,as opposed to age,UA,FeV1,Alb,lactic dehydrogenase(LDH)and Ca for the *** the importance percentage was much higher than the 2nd important factor,we built Model 2 by removing *** The eGFR were lower in the NAFLD+group compared to the NAFLD-group,with age being was the most important impact factor in both groups of he

关键词： Non-alcoholic fatty liver estimated glomerular filtration rate Machine learning Chinese women

experimental realization of fractal fretwork metasurface for sound anomalous modulation

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Physics B 2024年第5期33卷 473-478页

作者：何佳杰于书萌江雪他得安 Department of Biomedical engineering School of Information Science and TechnologyFudan UniversityShanghai 200433China Academy for engineering and Technology Fudan UniversityShanghai 200433China

Natural creatures and ancient cultures are full of potential sources to provide inspiration for applied *** by the fractal geometry in nature and the fretwork frame in ancient culture,here we design the acoustic metasurface to realize sound anomalous modulation,which manifests itself as an incident-dependent propagation behavior:sound wave propagating in the forward direction is allowed to transmit with high efficiency while in the backward direction is obviously *** quantitatively investigate the dependences of asymmetric transmission on the propagation direction,incident angle and operating frequency by calculating sound transmittance and energy *** compact fractal fretwork metasurface for acoustic anomalous modulation would promote the development of integrated acoustic devices and expand versatile applications in acoustic communication and information encryption.

关键词： acoustic metasurface fractal geometry sound anomalous modulation

维普期刊数据库

Stercoral perforation of the cecum:A case report

在线全文

学校读者我要写书评

暂无评论

World Journal of Gastrointestinal Surgery 2024年第4期16卷 1189-1194页

作者： Hung-Chun Yu ta-Wei Pu Jung-Cheng Kang Chao-Yang Chen Je-Ming Hu Ruei-Yu Su Department of Surgery Taichung Armed Forces General HospitalTaichung 411228Taiwan Department of Surgery Tri-Service General HospitalNational Defense Medical CenterTaipei 11490Taiwan Division of Colon and Rectal Surgery Department of SurgeryTri-Service General Hospital Songshan BranchNational Defense Medical CenterTaipei 105Taiwan Division of Colon and Rectal Surgery Department of SurgeryTaiwan Adventist HospitalTaipei 105Taiwan Division of Colon and Rectal Surgery Department of SurgeryTri-Service General HospitalNational Defense Medical CenterTaipei 114Taiwan Department of Pathology Tri-Service General HospitalNational Defense Medical CenterTaipei 105Taiwan Department of Pathology and Laboratory Medicine Taoyuan Armed Forces General HospitalTaoyuan 325Taiwan

BACKGROUND With less than 90 reported cases to date,stercoral perforation of the colon is a rare *** ulceration is thought to occur due to ischemic pressure necrosis of the bowel wall,which is caused by the presence of a stercoraceous *** underscore this urgent surgical situation concerning clinical presentation,surgical treatment,and results,we present the case of a 66-year-old man with a stercoral *** SUMMARY A 66-year-old man with a history of hypertension,hyperlipidemia,and gout presented at the emergency department with lower abdominal pain and a low-grade fever lasting for a few *** computed tomography indicated a suspected bezoar(approximately 7.6 cm)in the dilated cecum,accompanied by pericolic fat stranding,mild proximal dilatation of the ileum,pneumoperitoneum,and minimal ***,feculent peritonitis with isolated cecal perforation were ***,a right hemicolectomy with peritoneal lavage was performed.A histopathological examination supported the intraoperative *** In stercoral perforations,a diagnosis should be diligently pursued,especially in older adults,and prompt surgical intervention should be implemented.

关键词： Acute abdomen Colectomy Peritoneal lavage Pneumoperitoneum Bezoars Case report