检索结果-南通市图书馆

Degradation of a protected mountain area by tourist traffic:case study of the Tatra National Park,Poland

Journal of Mountain Science 2021年第10期18卷 2503-2519页

作者： Joanna FIDELUS-ORZECHOWSKA Elzbieta GORCZYCA marcin bukowski Kazimierz KRZEMIEN Institute of Geography Pedagogical University of KrakowPodchorqzych 230-084 KrakowPoland Institute of Geography and Spatial Management Jagiellonian UniversityGronostajowa 730-387 KrakowPoland Tatra National Park Kuznice 134-500 ZakopanePoland

Mountain protected areas are characterized by high biodiversity,which makes it a great challenge for managers to maintain a balance between their use and the stability of natural *** that balance is particularly difficult in areas with high tourism *** expected volume of tourist traffic should be considered at the planning stage of the tourist infrastructure development *** capacity of tourist infrastructure can lead to environmental degradation,which is hard,or at times impossible,to *** our research,we identified patterns of tourist footpath and road functioning in an environmentally protected area with high volumes of tourist *** from geomorphologic mapping was analyzed in order to identify tourist footpath and road structures in the Tatra National Park(TNP).Fieldwork was conducted in several stages between 1995 and *** from the years 1977,2009,2017 and 2019 were used to identify and compare degraded zones along selected tourist *** zones were defined as areas surrounding a footpath or tourist road with a mean width larger than or equal to 10 meters,with heavily damaged or completely removed vegetation and exposed,weathered cover,where geomorphic processes that would not take place under normal conditions are readily *** examined tourist footpaths and roads vary in terms of their morphometric *** has shown important differences between mean and maximum footpath width as well as maximum incision depth for the forest zone versus the subalpine and alpine zones.A lack of differences in these parameters was noted between the alpine and subalpine *** has shown that an increase in the surface area of degraded zones found adjacent to tourist footpaths occurred in all the studied geo-ecological zones in the study ***,the largest increase occurred atop wide ridgelines found in the alpine *** zones may be an indication of exce

关键词： Tourist traffic Degraded zones Mountain area Morphogenetic processes Carrying capacity

来源：

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

A Survey on Sensor-and Communication-Based Issues of Autonomous UAVs

引用

Computer Modeling in Engineering & Sciences 2024年第2期138卷 1019-1050页

作者： Pavlo Mykytyn marcin Brzozowski Zoya Dyka Peter Langendoerfer IHP-Leibniz-Institut für Innovative Mikroelektronik Wireless SystemsFrankfurt(Oder)15236Germany BTU Cottbus-Senftenberg Faculty 1:MINTCottbus03046German

The application field for Unmanned Aerial Vehicle (UAV) technology and its adoption rate have been increasingsteadily in the past years. Decreasing cost of commercial drones has enabled their use at a scale broader thanever before. However, increasing the complexity of UAVs and decreasing the cost, both contribute to a lack ofimplemented securitymeasures and raise new security and safety concerns. For instance, the issue of implausible ortampered UAV sensor measurements is barely addressed in the current research literature and thus, requires moreattention from the research community. The goal of this survey is to extensively review state-of-the-art literatureregarding common sensor- and communication-based vulnerabilities, existing threats, and active or passive cyberattacksagainst UAVs, as well as shed light on the research gaps in the literature. In this work, we describe theUnmanned Aerial System (UAS) architecture to point out the origination sources for security and safety *** the coverage and completeness of each related research work in a comprehensive comparison table as wellas classify the threats, vulnerabilities and cyber-attacks into sensor-based and communication-based ***, for each individual cyber-attack, we describe existing countermeasures or detectionmechanisms andprovide a list of requirements to ensureUAV’s security and *** also address the problem of implausible sensormeasurements and introduce the idea of a plausibility check for sensor data. By doing so, we discover additionalmeasures to improve security and safety and report on a research niche that is not well represented in the currentresearch literature.

关键词： Unmanned aerial vehicle unmanned aerial system cyber security and privacy drone swarm security vulnerabilities cyber-threats cyber-attacks plausibility check

来源：

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

Efficient slope reliability analysis under soil spatial variability using maximum entropy distribution with fractional moments

引用

Journal of Rock Mechanics and Geotechnical Engineering 2024年第4期16卷 1140-1152页

作者： Chengxin Feng Marcos A.Valdebenito marcin Chwała Kang Liao Matteo Broggi Michael Beer Institute for Risk and Reliability Leibniz University HannoverCallinstr.34Hannover30167Germany Chair for Reliability Engineering TU Dortmund UniversityLeonhard-Euler-Str.5Dortmund44227Germany Faculty of Civil Engineering Wrocƚaw University of Science and TechnologyWrocƚawPoland Faculty of Geosciences and Environmental Engineering Southwest Jiaotong UniversityChengdu610031China University of Liverpool Institute for Risk and UncertaintyPeach StreetLiverpoolL69 7ZFUnited Kingdom International Joint Research Center for Resilient Infrastructure & International Joint Research Center for Engineering Reliability and Stochastic Mechanics Tongji UniversityShanghaiChina

Spatial variability of soil properties imposes a challenge for practical analysis and design in geotechnical *** latter is particularly true for slope stability assessment,where the effects of uncertainty are synthesized in the so-called probability of *** probability quantifies the reliability of a slope and its numerical calculation is usually quite involved from a numerical *** view of this issue,this paper proposes an approach for failure probability assessment based on Latinized partially stratified sampling and maximum entropy distribution with fractional *** spatial variability of geotechnical properties is represented by means of random fields and the Karhunen-Loève ***,failure probabilities are estimated employing maximum entropy distribution with fractional *** application of the proposed approach is examined with two examples:a case study of an undrained slope and a case study of a slope with cross-correlated random fields of strength parameters under a drained *** results show that the proposed approach has excellent accuracy and high efficiency,and it can be applied straightforwardly to similar geotechnical engineering problems.

关键词： Slope Random field Reliability analysis Maximum entropy distribution Latinized partial stratified sampling

来源：

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

Short neuropeptide F in integrated insect physiology

引用

Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2024年第5期25卷 389-409页

作者： marcin CHOLEWINSKI Szymon CHOWANSKI Jan LUBAWY Arkadiusz URBANSKI Karolina WALKOWIAK-NOWICKA Paweł marcinIAK Department of Animal Physiology and Developmental Biology Adam Mickiewicz UniversityPoznan 61-614Poland

The short neuropeptide F(sNPF)family of peptides is a multifunctional group of neurohormones involved in the regulation of various physiological processes in *** have been found in a broad spectrum of species,but the number of isoforms in the precursor molecule varies from one to *** receptor for sNPF(sNPFR),which belongs to the G protein-coupled receptor family,has been characterized in various insect orders and was shown to be an ortholog of the mammalian prolactin-releasing peptide receptor(PrPR).The sNPF signaling pathway interacts with other neurohormones such as insulin-like peptides,SIFamide,and pigment-dispersing factors(PDFs)to regulate various *** main physiological function of sNPF seems to be involved in the regulation of feeding,but the observed effects are *** is also connected with the regulation of foraging behavior and the olfactory *** influence of sNPF on feeding and thus energy metabolism may also indirectly affect other vital processes,such as reproduction and *** addition,these neurohormones are involved in the regulation of locomotor activity and circadian rhythm in *** review summarizes the current state of knowledge about the sNPF system in insects.

关键词： Insect neuropeptide Invertebrate neurobiology Short neuropeptide F(sNPF) Feeding Neurohormone

来源：

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

Needle arthroscopic-assisted repair of tibio-fibular syndesmosis acute injury:A case report

引用

World Journal of Orthopedics 2024年第8期15卷 820-827页

作者： Blazej G Wojtowicz marcin Domzalski Jedrzej Lesman Department of Orthopedy and Trauma Medical University of LodzLodz 90-549LodzPoland

BACKGROUND Acute injuries to the tibiofibular syndesmosis,often associated with high ankle sprains or malleolar fractures,require precise diagnosis and treatment to prevent long-term *** case report explores the use of needle arthroscopy as a minimally invasive technique for the repair of tibiofibular syndesmosis *** SUMMARY We report on a 40-year-old male patient who presented with a trimalleolar fracture and ankle subluxation following a high ankle *** to significant swelling and poor soft tissue quality,initial management involved external ***,needle arthroscopy was employed to assess and treat the tibiofibular syndesmosis *** procedure,performed under spinal anesthesia and fluoroscopic control,included nanoscopic evaluation of the ankle joint and reduction of the syndesmosis using a suture ***-up assessments showed significant improvement in pain levels,range of motion,and functional *** 26 weeks post-procedure,the patient achieved full range of motion and pain-free *** arthroscopy offers a promising alternative for the management of acute tibiofibular syndesmosis injuries,combining diagnostic and therapeutic capabilities with minimal *** This technique may enhance clinical outcomes and reduce recovery times,warranting further investigation and integration into clinical practice.

关键词： Needle arthroscopy Tibiofibular syndesmosis Acute injury Ankle fracture Minimally invasive surgery Case report

来源：

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

Copernicrinus zamorae *** ***.,the oldest thiolliericrinid crinoid(Crinoidea,Echinodermata) from the Bajocian strata of Algeria,Africa

引用

Journal of Palaeogeography 2024年第2期13卷 237-251页

作者： Bartosz J.Pιachno Madani Benyoucef Fayc al Mekki Mohammed Adaci Imad Bouchemla Sreepat Jain marcin Krajewski Mariusz A.Salamon Faculty of Biology Institute of BotanyJagiellonian University in KrakowGronostajowa Street 930-387 KrakowPoland Laboratoire de Géomatique Ecologie et EnvironnementMustapha Stambouli University of MascaraDZ-29000 MascaraAlgeria Abou Bekr Belkaid University of Tlemcen TlemcenAlgeria Department of Geological Sciences Faculty of Biological and Agricultural SciencesMouloud Mammeri University of Tizi-OuzouTizi-OuzouAlgeria Adama Science and Technology University School of Applied Natural SciencesDepartment of Applied GeologyP.O.Box 1888AdamaEthiopia Faculty of Geology Geophysics and Environmental ProtectionAGH University of Science and TechnologyAl.A.Mickiewicza 30PL-30-059KrakowPoland Faculty of Natural Sciences University of Silesia in KatowiceBedzinska Street 60PL-41-200 SosnowiecPoland

The thiolliericrinids(Thiolliericrinidae) are comatulids(Comatulida),which retained their stalks as ***,we report a centrodorsal from the Bajocian strata(Middle Jurassic) of the Djebel Kérdacha area,northwestern Algeria(Africa).It is the first thiolliericrinid report from outside of Europe and also the oldest representative of the Thiolliericrinidae whose first occurrence is from the *** crinoid is assigned to Copernicrinus zamorae *** *** reported new taxon shows strong similarities with the stemless ‘true’comatulids,Solanocrinites;the only difference is the presence of a facet to the stem in *** closest comparable thiolliericrinid to Copernicrinus is the Oxfordian Thiolliericrinus,interpreted as a descendant of the *** origin and overview of all thiolliericrinid representatives are also discussed herein.

关键词： Thiolliericrinidae Crinoids Coral facies Bajocian Jurassic Algeria Southern Tethys margin

来源：

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

Deep learning methods for noisy sperm image classification from convolutional neural network to visual transformer:a comprehensive comparative study

引用

Intelligent Medicine 2024年第2期4卷 114-127页

作者： Ao Chen Chen Li Md Mamunur Rahaman Yudong Yao Haoyuan Chen Hechen Yang Peng Zhao Weiming Hu Wanli Liu Shuojia Zou Ning Xu marcin Grzegorzek Microscopic Image and Medical Image Analysis Group College of Medicine and Biological Information EngineeringNortheastern UniversityShenyangLiaoning 110169China Department of Electrical and Computer Engineering Stevens Institute of TechnologyHobokenNJ 07030USA School of Arts and Design Liaoning Petrochemical UniversityFushunLiaoning 113001China Institute of Medical Informatics University of LübeckLüebeckGermany

Background With the gradual increase of infertility in the world,among which male sperm problems are the main factor for infertility,more and more couples are using computer-assisted sperm analysis(CASA)to assist in the analysis and treatment of ***,the rapid development of deep learning(DL)has led to strong results in image classification ***,the classification of sperm images has not been well studied in current deep learning methods,and the sperm images are often affected by noise in practical CASA *** purpose of this article is to investigate the anti-noise robustness of deep learning classification methods applied on sperm *** The SVIA dataset is a publicly available large-scale sperm dataset containing three *** this work,we used subset-C,which provides more than 125,000 independent images of sperms and impurities,including 121,401 sperm images and 4,479 impurity *** investigate the anti-noise robustness of deep learning classification methods applied on sperm images,we conducted a comprehensive comparative study of sperm images using many convolutional neural network(CNN)and visual transformer(VT)deep learning methods to find the deep learning model with the most stable anti-noise *** This study proved that VT had strong robustness for the classification of tiny object(sperm and impurity)image datasets under some types of conventional noise and some adversarial *** particular,under the influence of Poisson noise,accuracy changed from 91.45%to 91.08%,impurity precison changed from 92.7%to 91.3%,impurity recall changed from 88.8%to 89.5%,and impurity F1-score changed 90.7%to 90.4%.Meanwhile,sperm precision changed from 90.9%to 90.5%,sperm recall changed from 92.5%to 93.8%,and sperm F1-score changed from 92.1%to 90.4%.Conclusion Sperm image classification may be strongly affected by noise in current deep learning methods;the robustness with regard to noise of VT methods based

关键词： Computer-assisted sperm analysis Anti-noise Robustness Deep learning .Image classification Sperm image Conventional noise Adversarial attacks Convolutional neural network Visual transformer

来源：

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

Retrospective study of the incidence, risk factors, treatment outcomes of bacterial infections at uncommon sites in cirrhotic patients

引用

World Journal of Hepatology 2024年第3期16卷 418-427页

作者： Sophie Schneitler Christina Schneider Markus Casper Frank Lammert marcin Krawczyk Sören L Becker Matthias Christian Reichert Institute of Medical Microbiology and Hygiene Saarland UniversityHomburg 66421Germany Department of Medicine II Saarland University Medical CenterHomburg 66421Germany Health Sciences Hannover Medical SchoolHannover 30625Germany Laboratory of Metabolic Liver Diseases Department of GeneralTransplant and Liver SurgeryCentre for Preclinical ResearchMedical University of WarsawWarsaw 02-097Poland

BACKGROUND Bacterial infections(BI)negatively affect the natural course of *** most frequent BI are urinary tract infections(UTI),pneumonia,and spontaneousbacterial peritonitis(SBP).AIM To assess the relevance of bacterial infections beyond the commonly recognized types in patients with cirrhosis and to investigate their relationship with other clinical *** We retrospectively analyzed patients with cirrhosis and BI treated between 2015 and 2018 at our tertiary care *** were classified as typical and atypical,and clinical as well as laboratory parameters were compared between the two *** In a cohort of 488 patients with cirrhosis,we identified 225 typical BI(95 UTI,73 SBP,72 pulmonary infections)and 74 atypical BIs,predominantly cholangitis and soft tissue infections(21 each),followed by intra-abdominal BIs(n=9),cholecystitis(n=6),head/throat BIs(n=6),osteoarticular BIs(n=5),and endocarditis(n=3).We did not observe differences concerning age,sex,or etiology of cirrhosis in patients with typical vs atypical *** BIs were more common in patients with more advanced cirrhosis,as evidenced by Model of End Stage Liver Disease(15.1±7.4 vs 12.9±5.1;P=0.005)and Child-Pugh scores(8.6±2.5 vs 8.0±2;P=0.05).CONCLUSION Atypical BIs in cirrhosis patients exhibit a distinct spectrum and are associated with more advanced stages of the ***,the work-up of cirrhosis patients with suspected BI requires detailed work-up to elucidate whether typical BI can be identified.

关键词： Bacterial infection Empirical antibiotic therapy End-stage liver disease Escherichia coli Multi-resistant pathogens

来源：

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

Environmental Impact of Using Different Energy Sources for Family House Heating

引用

Journal of Energy and Power Engineering 2012年第9期6卷 1408-1415页

作者： marcin bukowski Henryk Manteuffel Szoege Institute of Technology and Life Sciences Elblag 82-300 Poland Department of Agricultural Economics and International Economic Relations Warsaw University of Life Sciences Warsaw 02-787 Poland

Environmental impacts of using various sources of energy in heating a family house with 180 m2 of floor surface were compared by means of the SimaPro computer programme and attached to its databases, describing the environmental impacts of using typical materials and technologies. The set of compared heat energy sources comprised nine different sources. After normalisation (which meant recalculating the impacts into their proportions to the average impact of the kind, experienced by an average European in a year), weighting (which meant attaching arbitrary weights to three aggregate impact categories according to a methodology Eco-indicator 99 E/E) and summation of the weighted results expressed in so-called ecopoints, the coal combustion furnace turned out to have the greatest impact. It was followed by an electric stove and an oil burning furnace. The wood burning furnace and the heat pump had the smallest impact, almost equal in size. Results indicate that in case of renewable energy carriers like wood, straw and pellets, the total environmental hazard factor in 70% and more is derived from the respiratory harmful inorganic emissions. Extending the analysis by a LC assessment of equipment (boilers and pumps) might change the order of technologies.

关键词：能源使用环境住宅供暖家庭计算机程序生态指标几乎相等能源载体

来源：

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

昆虫生理中短神经肽F的功能研究进展（英文）

引用

Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2024年第5期 389-410页

作者： marcin CHOLEWI?SKI Szymon CHOWA?SKI Jan LUBAWY Arkadiusz URBA?SKI Karolina WALKOWIAK-NOWICKA Pawe? marcinIAK 亚当密茨凯维奇大学生物学院动物生理学和发育生物学系

短神经肽F(sNPF)肽家族是参与调控昆虫体内各种生理过程的多功能神经激素。它们广泛分布于生物体中，但前体分子中的异构体数量因物种而异，从一个到四个不等。sNPF受体（sNPFR）属于G蛋白偶联受体家族，在多种昆虫目中已有表征，并被... 详细信息

短神经肽F(sNPF)肽家族是参与调控昆虫体内各种生理过程的多功能神经激素。它们广泛分布于生物体中，但前体分子中的异构体数量因物种而异，从一个到四个不等。sNPF受体（sNPFR）属于G蛋白偶联受体家族，在多种昆虫目中已有表征，并被证明是哺乳动物泌乳素释放肽受体（PrPR）的同源物。sNPF信号通路通过与其他神经激素（例如类胰岛素肽、SIFamide和色素分散因子（PDFs））的相互作用以调控多种生理过程。其主要生理功能涉及摄食的调节，但观察到的效应因物种而异。sNPF还与觅食行为和嗅觉系统的调节相关。其对摄食及能量代谢的影响还可能间接影响其他重要过程，例如繁殖和发育。此外，这些神经激素还参与昆虫的运动活动和昼夜节律的调节。本文回顾并总结了昆虫中sNPF系统的现阶段研究进展。

关键词：昆虫神经肽无脊椎动物神经生物学短神经肽F(sNPF) 摄食神经激素

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：