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Breast Thermography: A 20-Year Retrospective Review of Infra-Red Breast Thermal Imaging in New Zealand and Its Potential Role in Breast Health Management
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作者 Michael Godfrey Patricia Godfrey 《Advances in Breast Cancer Research》 2023年第4期129-141,共13页
Cases are presented to reveal how modern computerised infra-red thermal imaging has the potential to assist in early breast cancer detection. The history of thermography and some recent controversies surrounding mammo... Cases are presented to reveal how modern computerised infra-red thermal imaging has the potential to assist in early breast cancer detection. The history of thermography and some recent controversies surrounding mammography are discussed. Examples of thermal imaging combined with naturopathic interventions are described. Since 2002, more than 8000 women in New Zealand have chosen to include thermal imaging as a part of their breast health management. Breast thermal imaging combined with relevant health advice, resulted in a perceived worthwhile benefit to patients in managing overall health. 展开更多
关键词 Breast Screening MAMMOGRAPHY infra-Red Thermography
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EFFECTS OF THE HEAT-TONIFICATION METHOD ON THE SURFACE TEMPERATURE OF THE BODY OBSERVED BY INFRA-RED THERMOGRAPHY 被引量:4
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作者 张栋 孟竞璧 +3 位作者 高惠合 温宝珠 薛立功 陈乃明 《Journal of Traditional Chinese Medicine》 SCIE CAS CSCD 1990年第1期36-41,共6页
With the infra-red thermography,73tests of the effect of Heat-Toniflcation ma-neuvers on body surface temperature weremade.The experiments showed that applica-tion of Heat-Tonification produced markedelevation of temp... With the infra-red thermography,73tests of the effect of Heat-Toniflcation ma-neuvers on body surface temperature weremade.The experiments showed that applica-tion of Heat-Tonification produced markedelevation of temperature at the site of punc-ture,over the face and the front of the neck.The differences between pre-and post-need-ling temperatures were statistically significant(P【0.02 and P【0.01).Furthermore,44.8% 展开更多
关键词 SURFACE infra minutes statistically ELEVATION DISTANT stored LIFTING 针刺补泻 TRUNK
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Transcriptome analysis of ankylosed primary molars with infraocclusion 被引量:4
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作者 Annie Tong Yuh-Lit Chow +3 位作者 Katie Xu Rita Hardiman Paul Schneider Seong-Seng Tan 《International Journal of Oral Science》 SCIE CAS CSCD 2020年第1期68-76,共9页
Primary molar ankylosis with infraocclusion can retard dental arch development and cause dental asymmetry. Despite its widespread prevalence, little is known about its molecular etiology and pathogenesis. To address t... Primary molar ankylosis with infraocclusion can retard dental arch development and cause dental asymmetry. Despite its widespread prevalence, little is known about its molecular etiology and pathogenesis. To address this, RNA sequencing was used to generate transcriptomes of furcal bone from infraoccluded(n = 7) and non-infraoccluded(n = 9) primary second molars, all without succeeding biscuspids. Of the 18 529 expressed genes, 432(2.3%) genes were differentially expressed between the two groups(false discovery rate < 0.05). Hierarchical clustering and principal component analysis showed clear separation in gene expression between infraoccluded and non-infraoccluded samples. Pathway analyses indicated that molar ankylosis is associated with the expression of genes consistent with the cellular inflammatory response and epithelial cell turnover. Independent validation using six expressed genes by immunohistochemical analysis demonstrated that the corresponding proteins are strongly expressed in the developing molar tooth germ, in particular the dental follicle and inner enamel epithelium. The descendants of these structures include the periodontal ligament, cementum, bone and epithelial rests of Malassez;tissues that are central to the ankylotic process.We therefore propose that ankylosis involves an increased inflammatory response associated with disruptions to the developmental remnants of the dental follicle and epithelial rests of Malassez. 展开更多
关键词 OCCLUSION infra MOLAR
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Anatomical variation of infra-pyloric artery origination: A prospective multicenter observational study (IPA-Origin) 被引量:5
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作者 Rulin Miao Jianjun Qu +43 位作者 Zhengrong Li Daguang Wang Jiang Yu Weidong Zang Yong Li Fenglin Liu Jian Zhang Wu Song Kai Ye Su Yan Wei Wang Shuangyi Ren Lu Zang Changqing Jing Li Zhang Kuan Wang Weihua Fu Lin Fan Bin Liang Gang Zhao Jun Cai Li Yang Jiaming Zhu Jun You Kun Yang Qingxing Huang Zhaojian Niu Ning Ning Xingfeng Qiu Gang Ji Feng Liang Hua Huang Chao Gao Fei Shan Shuangxi Li Yongning Jia Lianhai Zhang Xiangji Ying Yan Zhang Zhaode Bu Xiangqian Su Gang Zhao Ziyu Li Jiafu Ji 《Chinese Journal of Cancer Research》 SCIE CAS CSCD 2018年第5期500-507,共8页
Objective: Infra-pyloric artery (IPA) is an important anatomical landmark in treatment of gastric cancer and is the key vessel for pylorus-preserving gastrectomy and subgroup of infra-pyloric lymph nodes. However, ... Objective: Infra-pyloric artery (IPA) is an important anatomical landmark in treatment of gastric cancer and is the key vessel for pylorus-preserving gastrectomy and subgroup of infra-pyloric lymph nodes. However, its anatomical variation is not thoroughly understood. Our study aimed to clarify the origination of the IPA. Methods: We did this prospective, multicenter, open-label, observational study at gastric surgery departments of 34 hospitals in China. Gastric cancer patients aged 18 years or older and scheduled to undergo elective total or distal gastrectomy were assigned. During the surgery, IPA dissecting and exposing the origination point with photographs or video clips were required. The primary outcome was the origination of the IPA. Analysis of variance, χ2 tests and Fisher's tests were used to analyze the differences between groups. The study is registered at Clinicaltrials.gov (No. NCT03071237). Results: Between May 8 and July 31, 2017, 429 patients were assigned for the study, and 419 (97.7%) patients had the IPA dissected and recorded through photograph or video and were included in the primary outcome analysis. The median age was 62 years old, and 73.7% were male. Among the patients, 78.5% received laparoscopic surgery. Single IPA origination was identified in 398 (95.0%) patients, including gastroduodenal artery (GDA) in 154 (36.8%) patients, anterior superior pancreaticoduodenal artery (ASPDA) in 130 (31.0%) patients, and right gastroepiploic artery (RGEA) in 114 (27.2%) patients. Fifteen (3.6%) patients were identified with multiple IPA and 6 (1.4%) patients were identified as IPA absence. The differences in the distribution of surgical approach (P=0.003) and geographic area (P=0.030) were statistically significant. No difference was shown in sex, age, gastrectomy type, tumor location, and clinical T, N and M stage. Conclusions: Our study found that the IPA originates from GDA, ASPDA and RGEA in similar proportions. Laparoscopic surgery may be more helpful in dissection of the IPA than open surgery. 展开更多
关键词 infra-pyloric artery ORIGINATION ANATOMY gastric cancer
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A morphometric study of the structures bordering the infra-cochlear corridor-Relevant for endoscopic/microscopic ear surgery 被引量:2
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作者 Wei Liu Yongtian Lu +1 位作者 Goran Laurell Vincent Cousins 《Journal of Otology》 CSCD 2018年第3期81-84,共4页
Application of surgical endoscope, used alone or in combination with the surgical microscope, for the operative management of ear and temporal bone conditions may allow improved access and clearance of disease. Preser... Application of surgical endoscope, used alone or in combination with the surgical microscope, for the operative management of ear and temporal bone conditions may allow improved access and clearance of disease. Preservation of normal structures may also be improved.As the use of this tool is increasing, the need for better understanding of the anatomy of the ear is becoming evident. This is particularly so for endoscopic surgery aiming at removal of lesions involving the infra-cochlear corridor and/or petrous apex.Human temporal bone-derived labyrinth casts(molds), originally made for endolymphatic duct and sac analysis which genuinely represent the membranous labyrinth and its adjacent soft tissues, were morphometrically analyzed in terms of the anatomic relations between structures in and around the infra-cochlear corridor. The distance between the petrous carotid artery(PCA) and the basal turn of the cochlea, the distance between PCA and infra-cochlear vein(ICV)/cochlear aqueduct(CA), and the distance between the lower surface of basal cochlear turn and the point where the carotid artery and jugular vein(JV) meet close to the jugular foramen, were measured to be around 1.3 mm, 6 mm and 8 mm respectively, thus constituting an approximate 6?8 mm2 infra-cochlear corridor. This analysis and further study with larger samples might be helpful for operation via this corridor led to the petrous apex where cholesterol granuloma, cholesteatoma and other lesions are not uncommon. 展开更多
关键词 infra-cochlear CORRIDOR Petrous APEX ANATOMICAL study EAR endoscopy Surgery
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Rural Infrastructure Construction in New Socialist Countryside Construction 被引量:1
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作者 GUO Hong-sheng ,GUO Yue-jun Agricultural University of Hebei,Baoding 071000,China 《Asian Agricultural Research》 2012年第5期64-66,70,共4页
In the background of new socialist countryside construction,rural infrastructure construction is favorable to consolidating fundamental position of agriculture,expanding rural job opportunities,increasing farmers'... In the background of new socialist countryside construction,rural infrastructure construction is favorable to consolidating fundamental position of agriculture,expanding rural job opportunities,increasing farmers' income,and favorable to development of rural economy and the national economy. Rural infrastructure construction mainly includes construction of agricultural basic production conditions,construction of rural ecological environment,construction of agricultural service system,and construction of rural living facilities. Finally,we put forward approaches and methods for strengthening rural infrastructure construction: firstly,increase fund input to provide financial support for rural infrastructure construction; second ly,make scientific village planning to ensure sustainability of rural infrastructure construction; thirdly,arouse farmers' enthusiasm and initiative to promote stable development of rural infrastructure construction. 展开更多
关键词 NEW SOCIALIST COUNTRYSIDE CONSTRUCTION RURAL infra
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Infra-Gravity Wave Generation by the Shoaling Wave Groups over Beaches 被引量:1
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作者 LIN Yu-Hsien HWUNG Hwung-Hweng 《China Ocean Engineering》 SCIE EI 2012年第1期1-18,共18页
A physical parameter, fib, which was used to meet the forcing of primary short waves to be off-resonant before wave breaking, has been considered as an applicable parameter in the infra-gravity wave generation. Since ... A physical parameter, fib, which was used to meet the forcing of primary short waves to be off-resonant before wave breaking, has been considered as an applicable parameter in the infra-gravity wave generation. Since a series of modulating wave groups for different wave conditions are perfonned to proceed with the resonant mechanism of infra- gravity waves prior to wave breaking, the amplitude growth of incident bound long wave is assumed to be simply controlled by the normalized bed slope, fib. The results appear a large dependence of the growth rate, a, of incident bound long wave, separated by the three-array method, on the normalized bed slope, fib. High spatial resolution of wave records enables identification of the cross-correlation between squared short-wave envelopes and infra-gravity waves. The cross- shore structure of infra-gravity waves over beaches presents the mechanics of incident bound- and outgoing free long waves with the formation of free standing long waves in the nearshore region. The wave run-up and amplification of infra-gravity waves in the swash zone appear that the additional long waves generated by the breaking process would modify the cross-shore structure of free standing long waves. Finally, this paper would further discuss the contribution of long wave breaking and bottom friction to the energy dissipation of infra-gravity waves based on different slope conditions. 展开更多
关键词 infra-gravity wave low-frequency wave surf zone swash zone
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Analysis Algerian's Gallstones with Infrared Spectrum and Methods of Prevention and Treatment for Cholelithiasis in Algeria
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作者 Li Zong shan 1, Dang Zi qin 1, Li Xang qun 1, Zeng Fan qing 2, Gu Ying hong 2, Niu Fei 2, Zhang Hu sheng 3, Hung Xiao Ling 4 1. School of Medicine, Wuhan University, Wuhan 430071, Hubei, China 2. College of Chemistry and Molecular Sciences, Wuha University, Wuhan 430072, Hubei, China +1 位作者 3. School of Physics and Technology, Wuhan University, Wuhan 430072, Hubei, China 4. Zhongnan Hospital, Wuhan University, Wuhan 430071, Hubei, China 《Wuhan University Journal of Natural Sciences》 CAS 2002年第4期499-501,共3页
To analyze the type of Algerian’s gallstones and put forward relative measures of prevention and treatment, The NICOLET 170SX FT-IR spectrometer was used to measure the infra-red spectrum and analyze the feature of s... To analyze the type of Algerian’s gallstones and put forward relative measures of prevention and treatment, The NICOLET 170SX FT-IR spectrometer was used to measure the infra-red spectrum and analyze the feature of spectrum of Algerian’s gallstones. The results shown that Algerian have cholesterol gallstones. Reasons to form Algerian’s multiple cholesterol gallstones were investigated. We have put forward five suggestions to prevent and treat cholelithiasis. 展开更多
关键词 Key words Algerian GALLSTONE infra red spectrum PREVENTION TREATMENT
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Electrical Conductivity and Infra Red of CaTiO_3 Doped with CuO
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作者 F.F.Hammad and M.Sh.Khalil Department of Inorganic Chemistry, National Research Centre, Dokki, Cairo, Egypt A. H. Salama Department of Physical Chemistry, National Research Centre, Dokki, Cairo, Egypt 《Journal of Materials Science & Technology》 SCIE EI CAS CSCD 2001年第6期667-669,共3页
The electrical conductivity of pure CaTiO3 and that containing 0.5~5.0 mole fraction CuO as dopant were measured in the temperature range 291~773 K. The conductivity values varied as a function of temperature and do... The electrical conductivity of pure CaTiO3 and that containing 0.5~5.0 mole fraction CuO as dopant were measured in the temperature range 291~773 K. The conductivity values varied as a function of temperature and dopant concentration. The activation energy in the lower temperature range depended on the impurity content while in the high temperature range it indicated a value of energy gap width. The infrared absorption spectra in the range of 100~4000 cm-1revealed the presence of two main bands at 340 and 570 cm-1 which were assigned to TiO6 octahedral normal mode. Bands in the range of 106~270 cm-1 were due to the vibration of anion TiO-2. Some bands were observed at higher values due to the presence of lattice imperfections.There was a slight shift in band position with increasing dopant concentration which favors the formation of orthorhombic modification. 展开更多
关键词 Electrical Conductivity and infra Red of CaTiO3 Doped with CuO TIO In
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The First Light of Beijing Infra -Red Array Camera
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《天文研究与技术》 CSCD 1999年第S1期158-158,共1页
关键词 Red Array Camera The First Light of Beijing infra
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Pre-Operative Anaemia Predicts Poor Outcomes in Patients Undergoing Infra-Inguinal Bypass Surgery
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作者 K. Sierakowski Y. T. Wong +3 位作者 C. Delaney P. Hakendorf K. Missen J. I. Spark 《World Journal of Cardiovascular Diseases》 2014年第12期594-600,共7页
Objectives: Critical limb ischaemia (CLI) requiring infra-inguinal bypass is a common presentation to the vascular surgery service. A significant number of CLI patients also present with anaemia as a comorbidity, the ... Objectives: Critical limb ischaemia (CLI) requiring infra-inguinal bypass is a common presentation to the vascular surgery service. A significant number of CLI patients also present with anaemia as a comorbidity, the impact of which is unknown. We reviewed the impact of anaemia on mortality and amputation in patients who underwent infra-inguinal bypass surgery. Methods: Demographic data from all patients who underwent infra-inguinal bypass surgery for CLI at the Flinders Medical Centre & Repatriation General Hospital, South Australia between January 2005 and January 2010 were recorded. Haemoglobin (Hb) level, serum creatinine (SCr) level, mortality and amputation events were also recorded for retrospective analysis. Results: 190 patients (141M, 49F) who underwent infra-inguinal bypass surgery over a 5 year period were analyzed. 100 (53%) of these patients had mild anaemia (mean Hb 113 g/L, mean for females 103 g/L, mean for males 116 g/L). Those who presented with anaemia were more likely to have diabetes and renal dysfunction as comorbidities. Anaemia had a significant negative impact on mortality with 30% deaths in those who were anaemic compared to 15.6% deaths in those without anaemia odds ratio (OR) 1.76, 95% CI: 0.90 - 3.48, p < 0.01. This relationship was similar when looking at amputation as an outcome;with the number of amputations in those who were anaemic preoperatively 14% vs 6.7% in those who were not anaemic, OR 2.56, 95% CI: 1.00 - 6.54, p = 0.05. The negative impact of anaemia on mortality 43.5% vs 18.8% was also noted in patients who did not have diabetes or impaired renal function as a comorbidity p < 0.05. Conclusions: Anaemia is a common comorbidity in patients presenting with CLI and it predicts poor outcomes after infra-inguinal bypass. The role of transfusion is debatable, but it is clear that this group of patients requires careful management during the perioperative period to ensure they are medically optimized. 展开更多
关键词 ANAEMIA infra-Inguinal Bypass Renal Impairment AMPUTATION Mortality
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Comparative Thermometery in Paediatric Age Group: Is the Non-Touch Infrared Thermometer (NTIT) Reading Comparable to Regular Mercury-in-Glass Thermometer (MIGT) Reading?
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作者 Yetunde Olasinde Moninuola Ernest +1 位作者 Gbenga Popoola Kolade Ernest 《Open Journal of Pediatrics》 2018年第4期303-310,共8页
Background: Accurate temperature measurement is a critical step in evaluating health or disease especially in children and immmunocompromised subjects;inaccurate measurement may lead to improper diagnosis, wrong treat... Background: Accurate temperature measurement is a critical step in evaluating health or disease especially in children and immmunocompromised subjects;inaccurate measurement may lead to improper diagnosis, wrong treatment or inappropriate intervention. Several methods of temperature measurements exist and comparing these gives room for choosing a near ideal method in terms of speed, safety and accuracy. The study aimed to compare the forehead non touch infra-red thermometer with the axilllary mercury-in-glass method of temperature measurement in the Paediatric age-group. Methods: Study was given ethical approval as part of a larger study. Four hundred and thirty seven children aged 1 to 24 months were studied at the well-baby/immunizationclinic of the University of Ilorin Teaching Hospital over a 6-months period. Both non-touch infrared and theregular mercury-in-glass thermometers were used to take the body temperatures. Data were analysed with SPSS version 21. Pearson correlation was used to determine the relationship between the two methods of temperature measurements, while Bland-Altman method was used to test for level of agreement between them. Results: The mean age and SD was 5.81 ± 4.04 months. Pearson correlation showed a positive correlation between the axillary mercury-in-glass and forehead non-touch infra-red thermometry readings (r = 0.281, p < 0.001). Also, Bland-Altman method revealed a good agreement between both methods of thermometry as 96% of the readings were within the limits of agreement. Mean difference was 0.09°C (95% confidence interval 0.05 - 0.13). Conclusion: Axillary mercury-in-glass thermometer and forehead non touch infra-red thermometers have a good agreement and can be used interchangeably. 展开更多
关键词 Axillary Mercury-in-Glass THERMOMETER Forehead Non-Touch infra-Red THERMOMETER Bland-Altman
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梅兰日兰Infra+系列信息插座模块
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《电子产品世界》 2004年第01A期121-121,共1页
关键词 施耐德电气公司 梅兰日兰infra+ 信息插座模块 免打线方式
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Evaluation of the Performance of Infrared Thermography for On-Line Condition Monitoring of Rotating Machines
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作者 Vincent Leemans Marie-France Destain +1 位作者 Bovic Kilundu Pierre Dehombreux 《Engineering(科研)》 2011年第10期1030-1039,共10页
This study evaluated the possibility of infrared thermography to measure accurately the temperature of elements of a rotating device, within the scope of condition monitoring. The tested machine was a blower coupled t... This study evaluated the possibility of infrared thermography to measure accurately the temperature of elements of a rotating device, within the scope of condition monitoring. The tested machine was a blower coupled to a 500 kW electric motor, that operated in multiples regimes. The thermograms were acquired by a fixed thermographic camera and were processed and recorded every 15 minutes. Because the normal temperature variations could easily mask a drift caused by a failure, a corrected temperature was computed using autorecursive models. It was shown that an efficient temperature correction should compensate for the variations of the process, and for the ambient temperatures variations, either daily or seasonal. The standard deviation of the corrected temperature was of a few tenth of degree, making possible the detection of a drift of less than one degree and the prediction of potential failure. 展开更多
关键词 infra-RED THERMOGRAPHY CONDITIONAL MONITORING ARX
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Infra-red Thermal Imaging of the Inner Canthus: Correlates with the Temperature of the Injured Human Brain
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作者 Charmaine Childs Mya Myint Zu +3 位作者 Aung Phyo Wai Yeo Tseng Tsai Shiqian Wu Wang Li 《Engineering(科研)》 2012年第10期53-56,共4页
Introduction: Infra-red (IR) thermometry is a safe and valid method to determine internal and surface temperature in human subjects. Under conditions of brain damage (head injury or stroke) knowledge of changes in the... Introduction: Infra-red (IR) thermometry is a safe and valid method to determine internal and surface temperature in human subjects. Under conditions of brain damage (head injury or stroke) knowledge of changes in the temperature of intracranial tissue is justified because of the vulnerability of neurons to accelerated damage at temperatures at the upper end of the febrile range. Aim: To determine the temperature at the inner canthus (IC) of the eye as a potential surrogate for brain temperature. Methods: Invasive monitoring of deep brain structures, lateral ventricle and deep white matter. IR temperature readings obtained at right and left IC. Results: ?Strong correlations were evident between R and L IC and brain. Close, as well as poor, agreement between?? sites was shown in some patients and at some times. For right hemispheric lesions four had a better correlation between TbrV and TRIC when compared to TLIC.? When the correlation between TbrV and TLIC was better compared to TbrV and TRIC, four had a predominant right hemispheric lesion. Conclusions: Improved techniques for IR thermal imaging accuracy at the bedside has the potential to improve temperature measurement agreement. The predominant lesion side may have a bearing on maximum ipsilateral IC temperature Further studies are ongoing in this pilot study population. 展开更多
关键词 BRAIN TEMPERATURE infra-RED Thermometry INNER Canthus Thermal Imaging Eye
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施耐德电气——梅兰日兰Infra+智能布线系统
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《自动化博览》 2004年第2期68-68,共1页
关键词 梅兰日兰infra 光缆 智能布线系统 施耐德电气公司
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Outlier Detection in Near Infra-Red Spectra with Self-Organizing Map 被引量:2
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作者 李晓霞 李刚 +4 位作者 林凌 刘玉良 王焱 李健 杜江 《Transactions of Tianjin University》 EI CAS 2005年第2期129-132,共4页
A new method to detect multiple outliers in multivariate data is proposed. It is a combination of minimum subsets, resampling and self-organizing map (SOM) algorithm introduced by Kohonen,which provides a robust way w... A new method to detect multiple outliers in multivariate data is proposed. It is a combination of minimum subsets, resampling and self-organizing map (SOM) algorithm introduced by Kohonen,which provides a robust way with neural network. In this method, the number and organization of the neurons are selected by the characteristics of the spectra, e.g., the spectra data are often changed linearly with the concentration of the components and are often measured repeatedly, etc. So the spatial distribution of the neurons can be arranged by this characteristic. With this method, all the outliers in the spectra can be detected, which cannot be solved by the traditional method, and the speed of computation is higher than that of the traditional neural network method. The results of the simulation and the experiment show that this method is simple, effective, intuitionistic and all the outliers in the spectra can be detected in a short time. It is useful when associated with the regression model in the near infra-red research. 展开更多
关键词 近红外光谱 代谢物 化学计量技术 临床医学 诊断技术
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Analyze the Impact of ITS in Improving the Efficiency of Road Tax and Fee Collection Use of Digital Technologies in the City of Bujumbura
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作者 Fiston Niyonkuru Ilundu Wail Walumbuka Jérémie Ndikumagenge 《Open Journal of Applied Sciences》 2024年第6期1464-1473,共10页
Road transport is currently one of the most important sectors affecting sustainable development and the improvement of the population’s standard of living. In some sub-Saharan African countries, including Burundi, th... Road transport is currently one of the most important sectors affecting sustainable development and the improvement of the population’s standard of living. In some sub-Saharan African countries, including Burundi, the transport structure is vulnerable, under attack, or even damaged or destroyed. This is prompting decision-makers to look for every possible way to enable dynamic management of the road system, as well as the collection of tax revenues attributable to this sector. To reach this stage, we postulate that the introduction of the Intelligent Transport System (ITS) into the road tax and fee collection process would make a significant contribution (road safety, zero cash on silk Safety Officers, payment of a fine, eradication of road corruption etc.) to the digitization of the various transport sectors. As far as the city of Bujumbura is concerned (our field of intervention), the applicability of the present System could thus meet the expectations of the decision-maker, certain drivers and, by the same token, contribute to the promotion of Digital Technology in Burundi. 展开更多
关键词 Intelligent Transport System infra-Red Sensor Network OCR Algorithm Vision Systems Multi-Agent System
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农作物病虫害预警蛇形机器人避障控制研究--基于超声波及红外感器 被引量:1
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作者 黄亚萍 杨冬 《农机化研究》 北大核心 2024年第5期197-200,205,共5页
首先,搭建了农作物病虫害预警蛇形机器人运动学模型,对其被动蜿蜒转弯模式进行详细分析;然后,基于超声波和红外传感器设计了蛇形机器人控制系统,采用Serpenoid曲线策略对蛇形机器人运动姿态进行了研究,并模拟蛇的蜿蜒避障运动。模拟仿... 首先,搭建了农作物病虫害预警蛇形机器人运动学模型,对其被动蜿蜒转弯模式进行详细分析;然后,基于超声波和红外传感器设计了蛇形机器人控制系统,采用Serpenoid曲线策略对蛇形机器人运动姿态进行了研究,并模拟蛇的蜿蜒避障运动。模拟仿真结果表明:蛇形机器人可以自主检测障碍物,通过对移动速度和方向进行控制,能够实现避障处理。 展开更多
关键词 蛇形机器人 病虫害预警 超声波 红外 Serpenoid 避障
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超纤革水性含浸工艺的改进 被引量:1
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作者 李琛 王冬 +2 位作者 仲鸿天 董朋 付少海 《印染》 北大核心 2024年第1期36-39,43,共5页
针对现有水性聚氨酯含浸超纤革工艺的缺点,从基布改性和传统工艺优化二方面改进了超纤革的水性含浸工艺,研究了水性聚氨酯固含量、浆料黏度、整理及烘干方式对含浸超纤革性能的影响。结果表明:当水性聚氨酯固含量为25%、浆料黏度为2000~... 针对现有水性聚氨酯含浸超纤革工艺的缺点,从基布改性和传统工艺优化二方面改进了超纤革的水性含浸工艺,研究了水性聚氨酯固含量、浆料黏度、整理及烘干方式对含浸超纤革性能的影响。结果表明:当水性聚氨酯固含量为25%、浆料黏度为2000~3000 mPa·s时,采用等离子体改性基布,含浸后盐溶液破乳,红外照射预烘后再高温热风烘干,制备的含浸超纤革符合QB/T 2888—2007中B类绒面合成革的产品标准。 展开更多
关键词 水性聚氨酯 超纤革 固含量 黏度 等离子体 破乳 红外加热
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