检索结果-南通市图书馆

在线全文

学校读者我要写书评

暂无评论

窄幅有梭织机及其应用现状

国际纺织导报 2015年第12期43卷 24-24,26页

作者： h.stang 周蕊 MAGEBA纺织机械公司

窄幅织物是指宽度不超过30 cm的纺织面料。其典型的织物有条带、内衣或外套的松紧带、时尚或厚重的边带等,如吊货索网、汽车安全带等。20世纪70年代,生产条带或窄幅织物的有梭织机开始受到高速针织机的压制。针织机编织速度通常为1 500... 详细信息

窄幅织物是指宽度不超过30 cm的纺织面料。其典型的织物有条带、内衣或外套的松紧带、时尚或厚重的边带等,如吊货索网、汽车安全带等。20世纪70年代,生产条带或窄幅织物的有梭织机开始受到高速针织机的压制。针织机编织速度通常为1 500～2 000纬/min,近来采用2头的机器,速度可提高至2 500纬/min,但在这种编织速度下，针织机只能制织2、4或6条条带。有梭织机的织造速度虽仅为80～200纬／min，但同时可制织更多的条带，可同时制织10、20或40条条带。

关键词：窄幅织物有梭织机织造速度应用汽车安全带针织机纺织面料条带

Weak correlation of flower color and nectar-tube depth in temperate grasslands

在线全文

学校读者我要写书评

暂无评论

Journal of Plant Ecology 2017年第2期10卷 397-405页

作者： Julia Binkenstein Martina stang Julien P.Renoult h.Martin Schaefer Chair of Nature Conservation and Landscape Ecology Faculty of Environment and Natural ResourcesUniversity of FreiburgTennenbacher Straße 479106 FreiburgGermany Section Plant Ecology and Phytochemistry Institute of Biology LeidenLeiden UniversitySylviusweg 722300 RA LeidenThe Netherlands Institute of Arts Creation Theory and Aesthetics UMR 8218-CNRS47 r.des bergers75015 ParisFrance Fundacion Jocotoco Lizardo GarcíaE9-104 y Andrés XauraP.O.Box 17-16-337QuitoEcuador

Aims Nectar is one of the most common floral rewards offered to pol-linators by *** on the plant species,nectar is offered openly or in tubes of various lengths restricting accessibility of this resource for flower visitors with short *** attract-ing pollinators that match floral morphology increases pollination efficiency,flowers could profit from signaling nectar-tube depth to *** flower colors are important signals in plant-pol-linator communication,we investigated whether and which differ-ent chromatic or achromatic aspects of flower color might indicate nectar-tube depth or whether flower colors facilitate the differen-tiation between flowers with long nectar tubes by means of high chromatic *** To this end,we collected flower reflectance spectra of 135 grassland plant *** analyzed flower colors as raw reflectance spectra in principal component analysis(PCA)and in the color space of *** Findings The correlation between flower colors and tube depths was *** the bee’s point of view,blue flowers had on average deeper tubes than green,blue-green and UV-green flowers potentially allow-ing insects to predict tube depths based on blue *** purity did not correlate with nectar-tube depth,nor did the chromatic uniqueness of flower colors in the honeybee color *** wavelength showed a significant but very weak correlation with tube *** achromatic green contrast decreased with increasing tube depth as did brightness;thus deep tubes were less conspicuous than shallow *** components resulting from PCA did not or only slightly correlate with tube *** results illustrate that flower colors may have a certain potential to indicate tube depth,*** accessibility,from a bee’s perspective.

关键词： vision pollination efficiency plant-animal interaction nectar tube depth

Coordination-driven self-assembly of dibenzo-18-crown-6 functionalized Pt(Ⅱ) metallacycles

维普期刊数据库评论

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 Chemical Letters 2023年第2期34卷 158-160页

作者： Zibin Zhang Yu Yao Lang he Tao hong Shijun Li Feihe huang Peter J.stang College of Material Chemistry and Chemical EngineeringHangzhou Normal UniversityHangzhou 311121China State Key Laboratory of Chemical Engineering Stoddart Institute of Molecular ScienceDepartment of ChemistryZhejiang UniversityHangzhou 310027China Green Catalysis Center and College of Chemistry Zhengzhou UniversityZhengzhou 450001China Department of Chemistry University of UtahSalt Lake CityUT 84112United States

Coordination-driven self-assembly was used to construct two metallacycles of a dicarboxylatefunctionalized dibenzo-18-crown-6 in combination with either a 0° anthracene-based clip-type acceptor or a 60° phenanthrene-based acceptor. The angularities of these moieties make them suitable for the formation of a [2 + 2] rectangle and a [3 + 3] triangle, respectively. The synthesis, characterization and host-guest chemistry of two metallacycles were described and supported by31P{1h},1h NMR spectra and electrospray mass spectrometry.

关键词： Crown ethers Metallacycles Cation receptors Self-assembly

Burn Injuries in Elderly—A Retrospective Analysis of a Ten Year Period

在线全文

学校读者我要写书评

暂无评论

Modern Plastic Surgery 2012年第2期2卷 13-19页

作者： Frank Siemers Eirini Liodaki Karl L. Mauss Felix h. stang Tobias von Wild Peter Mailaender Plastic Surgery University Clinic Schleswig-Holstein Lubeck Germany

Objective: Geriatric patients represent a separate group in the treatment of burn injury regarding pathogenesis, pathophysiology and therapeutic procedure. Methods: From 2000 to 2010 on our burn unit 53 patients aged over 60 years were treated. The mean age of the 27 women and 26 men was 76 years (60 - 102 years), with an average of 33.2% of total burn surface area. 25 patients (47.2%) had severe inhalation injury, 77.4% of the patients suffered full thickness burn injuries. Mean ABSI Score was 12. Relevant additional diseases were coronary heart disease, heart insufficiency, hypertension, COPD, adiposity and chronic alcoholism. Results: 22 patients were treated by early operative intervention (day 0 - 4), 13 of these patients survived further process. In 17 cases first operative procedure could take place only at a later date, 14 patients deceased before operation. 26 patients developed pneumonia. The total morbidity amounted to 26 of 53 patients (49%). A total of 19 injured with a burn index over 80 survived. 9 of them had an index of more than 100. Usual indices as the “Zellweger Index” and the ABSI-Score are not adequate to determine the prognosis of thermal injuries in the elderly. Conclusion: The treatment of elderly with burn trauma is affected by many factors. Compared to younger patients the increased incidence of an inhalation injury is decisive for the prognosis of older patients. The frequency of pre-existing diseases is clearly largely than with younger burn injured patients. These prognostically relevant parameters were not sufficiently considered by established score systems.

关键词： Burn Injury Intensive Care Elderly

Staging colorectal cancer with the TNM 7^(th):The presumption of innocence when applying the M category

维普期刊数据库评论

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 Gastroenterology 2013年第8期19卷 1152-1157页

作者： Giacomo Puppa Graeme Poston Per Jess Guy F Nash Kenneth Coenegrachts Axel stang Service de Pathologie Clinique Hpitaux Universitaires de Genève1211 GenevaSwitzerland Department of Surgery Aintree University HospitalsLiverpool L9 7ALUnited Kingdom Department of Surgery Roskilde HospitalUniversity of Copenhagen2200 CopenhagenDenmark Department of Colorectal Surgery Poole General HospitalPoole BH15 2JBUnited Kingdom Department of Radiology AZ St.-Jan Brugge-Oostende AVB-8000 BrugesBelgium Department of Oncology Hematology and Palliative CareAsklepios Hospital Hamburg-Barmbek22291 HamburgGermany

One of the main changes of the current TNM-7 is the elimination of the category MX,since it has been a source of ambiguity and misinterpretation,especially by *** the ultimate staging would be better performed by the patient's clinician who can classify the disease M0(no distant metastasis) or M1(presence of distant metastasis),having access to the completeness of data resulting from clinical examination,imaging workup and pathology *** this important change doesn't take into account the diagnostic value and the challenge of small indeterminate visceral lesions encountered,in particular,during radiological staging of patients with colorectal *** this article the diagnosis of these lesions with multiple imaging modalities,their frequency,significance and relevance to staging and disease management are described in a multidisciplinary *** particular the interplay between clinical,radiological and pathological staging,which are usually conducted independently,is *** integrated approach shows that there are both advantages and disadvantages to abandoning the MX *** avoid ambiguity arising both by applying and interpreting MX category for stage assigning,its abandoning seems *** recognition of the importance of small lesion characterization raises the need for applying a separate category;therefore a proposal for their categorization is put *** using the proposed categorization the lack of consideration for indeterminate visceral lesions with the current staging system will be overcome,also optimizing tailored follow-up.

关键词： Colorectal cancer Staging Indeterminate lesions Imaging Metastases

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

德国恶性外阴黑色素瘤的人群发病率

世界核心医学期刊文摘（妇产科学分册） 2005年第5期1卷 57-57页

作者： stang A Streller B Eisinger B Jckel K.h. 张影

Only few population-based incidence analyses of vulvar melanoma including the United States and Sweden are currently available. We studied the incidence of v ulvar melanoma in a large population-based cancer registry ofEast Germany and c ompared our findings with the United States and Sweden. We extracted vulvar mela noma registered between 1976 and 1989 in the former National Cancer Registry of the German Democratic Republic (GDR) and of three new East German cancer registr ies of the federal states of Sachsen, Brandenburg, and Mecklenburg-Vorpommern o f the period 1998 to 2002. We calculated age-specific and age-standardized inc idence rates using the World Standard Population. One hundred two cases (1976198 9, former GDR) and twenty-five cases of vulvar melanoma (1998-2002, three new federal states) were registered. The age-standardized incidence rate (World Sta ndard Population)-remained constant over the period from 1976 to 1989 and range d between 0.26 and 0.52 cases per million. From 1998 to 2002, the incidence rate was 0.48 per million. The ratio of registered vulvar melanoma to skin melanoma was 1:71, and the ratio of vaginal melanoma to skin melanoma was 1:314. Age at d iagnosis during the period 1976 to 1989 was lower among women with vulvar melano ma (median age 70 years) compared to women with vulvar tumors other than melanom a (median age 73 years). The risk of vulvar melanoma was considerably lower in E ast Germany than in the United States and Sweden. Due to the rarity of vulvar me lanoma, population-based cancer registries are hampered to study this tumor in detail.

关键词：外阴黑色素瘤人群发病率肿瘤登记世界标准勃兰登堡人口计算波莫瑞情况分析率比萨克森