检索结果-南通市图书馆

On a Heuristic Point of View about the Generalization of Curie Law to Cosmic Higgs Fields with the Casimir Effect

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Applied Mathematics and Physics 2024年第9期12卷 3135-3147页

作者： Hung-Te henry su Po-Han Lee Department of Physics National Chung Cheng University Chia-Yi Department of Electro-Optical Engineering National Taipei University of Technology Taipei City The Affiliated Senior High School of National Taiwan Normal University Taipei City

Condensed state physics demonstrates that the Curie temperature is the point at which spontaneous magnetization drops to zero, marking the critical transition where ferromagnetic or ferrimagnetic materials transform into paramagnetic substances. Below the Curie temperature, a material remains ferromagnetic;above it, the material becomes paramagnetic, with its magnetic field easily influenced by external magnetic fileds. For example, the Curie temperature of iron (Fe) is 1043 K, while that of neodymium magnets ranges from 583 to 673 K. From both physics and mathematics perspectives, examining the temperature properties of materials is essential, as it provides valuable insights into their electromagnetic and thermodynamic behaviors. This paper makes a bold assumption and, for the first time, carefully verifies the existence of a Casimir temperature at 0.00206 K under conditions of one-atomic spacing.

关键词： Curie Temperature Curie Point Casimir Temperature Critical Point Fields Materials One-Atomic Spacing

The Effects of Preoperative Imaging on surgical Outcome for Pediatric Appendicitis Patients Special Issue: Pediatric surgery

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

International Journal of Clinical Medicine 2013年第7期4卷 28-33页

作者： henry su Laura Nally Jennifer Maddison Yi-Horng Lee Division of Pediatric surgery Department of Surgery Golisano Children’s Hospital University of Rochester Medical Center Rochester USA. Strong Children’s Research Center Department of Pediatrics Golisano Children’s Hospital University of Rochester Medical Cen- ter Rochester USA

Computed tomography (CT) has been the major imaging modality for the diagnosis of appendicitis because of its excellent imaging resolution and the ease of interpretation, but a concern has been raised regarding radiation exposure. We have shifted from CT to ultrasonography (US) as the primary imaging modality because of this concern. A retrospective review is conducted to determine whether a combined US/CT strategy can reduce radiation exposure while maintaining the same surgical outcome. Five hundred eighty-six patients between 10 and 18 years of age who underwent an appendectomy from 2007-2011wereincluded in our study. The patients were classified as Early (prior to 7/1/2009) or Late (after 7/1/2009) with the knowledge that a conscientious institutional effort was made to start utilizing US as the primary imaging modality, limiting CT use to selective cases in 2009. The diagnostic imaging studies performed (CT, US or no imaging) were recorded. Operative findings, pathology reports and clinical course were reviewed. The rates of acute appendicitis (AA), negative appendectomies (NA) and perforated appendicitis (PA) were calculated. During the Early period, 49.3% of patients (n = 150) had undergone CT scans prior to their appendectomy whereas only 37.9% (n = 107) had CT scans during the Late period. Of the CT scans obtained during the Late period, only 18.4% of patients (n = 52) had a CT scan first, and 55 CT scans were done after an initial US. Patient disease patterns were similar between Early and Late years. While no difference in NA rates for boys was found between the Early and Late periods, a significantly higher incidence of NA rates was found in girls in the Early period as opposed to the Late period. We conclude that a shift in practice patterns to reduce radiation exposure for pediatric patients with appendicitis has not resulted in inferior surgical outcome.

关键词： Appendicitis Computed Tomography Ultrasonography Radiation Exposure

Corn kernel classification from few training samples

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Artificial Intelligence in Agriculture 2023年第3期9卷 89-99页

作者： Patricia L.suárez henry O.Velesaca Dario Carpio Angel D.Sappa ESPOL Polytechnic University CIDISCampus Gustavo GalindoGuayaquil 09-01-5863Ecuador Computer Vision Center Universitat Autònoma de Barcelona08193-BellaterraBarcelonaSpain

This article presents an efficient approach to classify a set of corn kernels in contact,which may contain good,or defective kernels along with *** proposed approach consists of two stages,the first one is a next-generation segmentation network,trained by using a set of synthesized images that is applied to divide the given image into a set of individual *** ad-hoc lightweight CNN architecture is then proposed to classify each instance into one of three categories(ie good,defective,and impurities).The segmentation network is trained using a strategy that avoids the time-consuming and human-error-prone task of manual data *** the classification stage,the proposed ad-hoc network is designed with only a few sets of layers to result in a lightweight architecture capable of being used in integrated *** results and comparisons with previous approaches showing both the improvement in accuracy and the reduction in time are ***,the segmentation and classification approach proposed can be easily adapted for use with other cereal types.

关键词： Corn kernel classification Computer vision approaches Quality inspection Food grain identification Machine vision Instance segmentation Synthesized dataset generation

Geographic Information Technologies for the Study of Mass Wasting Hazards

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

International Journal of Geosciences 2014年第5期5卷 519-526页

作者： henry Pacheco Carlos suárez Universidad Pedagógica Experimental Libertador Instituto Pedagógico de Caracas Departamento de Ciencias de La Tierra. Centro de Investigación “Estudios del Medio Físico Venezolano” Venezuela

The purpose of the research was to obtain the mass wasting hazard map for the state of Vargas, central coast of Venezuela, using GIS technology. The work was developed through the heuristic method with the generation of thematic digital maps, univariate statistical treatment, weighting of each variable and quantifying the relationship of each parameter unit regarding mass wasting processes. The algorithm designed to perform map algebra was designed using the variables: surface geology, slope, slope orientation, terrain curvature, moisture topographic index, power index surface flow rate and capacity sediment transport and the rate normalized difference vegetation. The results show a distribution of landslide hazard with the highest values in the west central part of Vargas state, where the dominant lithology is incompetent, and combined with topographic elements, determining high instability, meanwhile the lower hazard areas were found in specific areas such as the middle watershed areas east of the state. The calibration of this model shows a reliability of 80%, so it is highly advisable to use the information generated in this work by governmental and non-governmental organizations in the planning, management and use of land.

关键词： Mass Wasting Hazards GIS Vargas State Venezuela

A rare case of isolated castrate resistant bilateral testicular metastases in advanced prostate cancer

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Asian Journal of Urology 2018年第2期5卷 127-130页

作者： Jiarui su Edwin Jonathan Aslim Hakan Aydin Puay Hoon Tan henry sun Sien Ho Department of Urology Singapore General HospitalSingapore Department of Anatomical Pathology Singapore General HospitalSingapore Division of Pathology Singapore General HospitalSingapore

Testicular metastasis is rare with the prostate being the most common site of primary *** report a case of a 72-year-old man with castration-resistant prostate cancer(CRPC)and known metastases to bone and lymph nodes,who developed bilateral painful swollen testes 3 years after the initial diagnosis of prostate *** had first presented with lower urinary tract symptoms(LUTS)with suspicious findings on digital rectal examination of the prostate,and an elevated serum prostate specific antigen(PSA)level of 129 ng/*** prostate biopsy revealed Gleason 4þ5 *** staging showed locally advanced prostate cancer with extensive metastases to bone and pelvic and retroperitoneal lymph *** was given hormonal therapy for over 2 years until progression to *** months later he developed painful bilateral testicular swellings,and serum markers for testicular germ cell cancer were *** orchiectomy was performed,showing metastatic prostate cancer(Gleason 4þ5)on *** month postoperatively his PSA level dropped to 0.1 ng/mL from a presurgery level of 6.24 ng/mL.

关键词： Castration-resistant prostate cancer Metastases Testicular tumor Orchiectomy

Impact of meteorological factors on the incidence of childhood hand,foot,and mouth disease(HFMD)analyzed by DLNMs-based time series approach

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Infectious Diseases of Poverty 2018年第1期7卷 77-86页

作者： Hongchao Qi Yue Chen Dongli Xu Hualin su Longwen Zhan Zhiyin Xu Ying Huang Qianshan He Yi Hu henry Lynn Zhijie Zhang Department of Epidemiology and Biostatistics School of Public HealthFudan UniversityShanghai 20002China Key Laboratory of Public Health Safety Ministry of EducationShanghai 200032China Collaborative Innovation Center of Social Risks Governance in Health School of Public HealthFudan UniversityShanghai 200032China School of Epidemiology Pubic Health and Preventive MedicineFaculty of MedicineUniversity of Ottawa451 Smyth RdOttawaON 10610Canada Minghang District Center for Disease Control and Prevention Shanghai 201101China Shanghai Meteorological Service Shanghai 201499China Shanghai Key Laboratory of Meteorology and Health Shanghai 201499China

Background:Hand,foot,and mouth disease(HFMD)has become an emerging infectious disease in China in the last *** has been evidence that meteorological factors can influence the HFMD incidence,and understanding the mechanisms can help prevent and control ***:HFMD incidence data and meteorological data in Minhang District,Shanghai were obtained for the period between 2009 and *** lag non-linear models(DLNMs)were utilized to investigate the impact of meteorological factors on HFMD incidence after adjusting for potential confounders of long time trend,weekdays and ***:There was a non-linear relationship between temperature and HFMD incidence,the RR of 5th percentile compared to the median is 0.836(95%CI:0.671-1.042)and the RR of 95th percentile is 2.225(95%CI:1.774-2.792),and the effect of temperature varied across age *** incidence increased with increasing average relative humidity(%)(RR=1.009,95%CI:1.005-1.015)and wind speed(m/s)(RR=1.197,95%CI:1.118-1.282),and with decreasing daily rainfall(mm)(RR=0.992,95%CI:0.987-0.997)and sunshine hours(h)(RR=0.966,95%CI:0.951-0.980).Conclusions:There were significant relationships between meteorological factors and childhood HFMD incidence in Minhang District,*** information can help local health agencies develop strategies for the control and prevention of HFMD under specific climatic conditions.

关键词： Hand foot and mouth disease Meteorological factor Distributed lag non-linear model

Crystal structure of monkeypox H1 phosphatase,an antiviral drug target

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Protein & Cell 2023年第6期14卷 469-472页

作者： Wen Cui Haojun Huang Yinkai Duan Zhi Luo Haofeng Wang Tenan Zhang henry C Nguyen Wei Shen Dan su Xi Li Xiaoyun Ji Haitao Yang Wei Wang Institute of Life Sciences Chongqing Medical UniversityChongqing 400016China Shanghai Institute for Advanced Immunochemical Studies and School of Life Science and Technology ShanghaiTech UniversityShanghai 201210China State Key Laboratory of Biotherapy and Cancer Center West China HospitalSichuan University and Collaborative Innovation Center of BiotherapyChengdu 610064China State Key Laboratory of Pharmaceutical Biotechnology Department of Biotechnology and Pharmaceutical SciencesSchool of Life SciencesNanjing UniversityNanjing 210023China Shanghai Clinical Research and Trial Center Shanghai 201210China Tianjin International Joint Academy of Biotechnology and Medicine Tianjin 300450China

Dear Editor,Since its appearance in May 2022,monkeypox has spread to>100 countries and afflicted tens of thousands of *** infected with monkeypox present a fever,an extensive characteristic rash,and usually swollen lymph nodes(Chatterjee et al.,2022).The number of confirmed cases worldwide continues to grow at a rapid rate,but the treatment to this highly infectious viral disease is still very *** of new targeted-therapies will be crucial to control of this emerging public health threat.

关键词： monkey Crystal

Preparation and synergetic catalytic effects of amino-functionalized MCM-41 catalysts

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Science China Chemistry 2012年第6期55卷 1167-1174页

作者： LANG WanZhong su Bo GUO YaJun CHU LianFeng Key Laboratory of Resource Chemistry of Ministry of Education Shanghai Key Laboratory of Rare Earth Functional MaterialsCollege of Life and Environmental Science Shanghai Normal University Shanghai 200234 China

Four amine functionalized mesoporous catalysts were synthesized by grafting primary, dualistic and two secondary amines onto the channel walls of mesoporous silica, MCM-41. We examined the effects of organoamine loading amount on the acid-base synergism of the catalysts in the self-condensation reaction of n-butanal, a Knoevenagel condensation and a henry reaction. We observed the balance of the amine and residual silanol amounts is crucial to the catalytic performances of the functionalized mesoporous catalysts. An optimum organoamine loading amount exists, which is dependent on the organoamine type. There is little difference in the optimum organoamine loading amount between different reactions. The secondary organoamine functionalized MCM-41 exhibits the best catalytic performance in the experimental range.

关键词： MCM-41 acid-base synergism organoamine n-butanal

CistromeMap:A knowledgebase and web server for ChlP-Seq and DNase-Seq studies in mouse and human

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

CistromeMap:A knowledgebase and web server for ChlP-Seq and ...