Types Of Spots Research Articles

Toxicological effects of ciprofloxacin exposure to Drosophila melanogaster

The abuse of ciprofloxacin (CIP) may cause serious side effects and the mechanisms underlying these effects remain unclear. Here, we determinate the 48 h, 72 h and 96 h LC50 values of CIP to Drosophila melanogaster and demonstrate a series of adverse effects after D. melanogaster was exposed to CIP at a sublethal concentration (3.2 mg mL−1). Treated individuals showed shorter lifespan, delayed development and many of the treated larvae failed to pupate or hatch. Smaller body size was observed at every life stage when exposed to CIP and the size of pupae, the weight of third-instar larvae exhibited a perfectly dose-response relationship that the larger concentration exposed to, the smaller body size or lighter weight is. Moreover, reduction in fat body cell viability, elevated oxidative stress markers (SOD and CAT) and down-regulation of diap1, ex, two target genes of Yorkie (Yki), was observed in response to CIP exposure. Most importantly, we found two types of black spot in Drosophila and the proportion of larvae with a black spot was positively related to the treatment dose, which is new in the field. This study provides a scientific basis for the potential harm caused by abuse of quinolones with the goal of urging cautious use of antibiotics.

Vacuum Arc Cathode Spot Theory: History and Evolution of the Mechanisms

Vacuum arc cathode spot theories are reviewed, beginning from the primary studies in second half of the 19th century up to the present. The evolution of the main ideas is presented, starting from those, which developed, for separate phenomena, up to systematic inclusive models. New spot type classifications are proposed based on observed characteristics, instead of the previous simple numbering. Different approaches were considered for generating plasma comprised of cathode material, based on cathode vaporization and local explosions. Models with closed systems of equations were developed. A kinetic model advantageously allows calculating the cathode potential drop. These closed models explain various phenomena and two base rules were derived: 1) impeded plasma flow enables cathode spot operation and 2) the heat loss in the cathode must be smaller than the energy input to the cathode spot. Based on these rules, mechanisms for the spot types were derived and observed spot behavior in transverse and oblique magnetic fields was described.

Investigation of Anode Plume in Vacuum Arcs Using Different Optical Diagnostic Methods

This paper presents the results of different optical diagnostic methods to investigate an anode plume which forms after the extinction of anode spot type 2. The formation of the anode plume is investigated by means of three high-speed cameras. Two high-speed cameras, positioned perpendicular to each other, are used to observe the general anode plume evolution. The third camera is connected to a spectrograph enabling the video spectroscopy. The arc is driven by a damped 50-Hz ac between Cu/Cr 75/25 butt contacts with a diameter of 10 mm. The emission coefficients for atomic and ionic Cu lines during anode plume formation are calculated. The inner part of the anode plume is dominated by atomic line radiation, whereas the outer part is dominated by the emission of singly charged ionic lines. The radiator density of the Cu I 510.55 nm is about $3\times 10^{17}\,\,\text{m}^{-3}$ compared with a radiator density of Cu II of $9\times 10^{13}\,\,\text{m}^{-3}$ at the same position inside the anode plume. A broadband absorption spectroscopy is used to determine the ground-state densities of Cu and Cr after the extinction of anode plume at current zero (CZ). The density of Cu I is about 1.5 times higher than Cr I at the same time around CZ. Moreover, near-infrared spectroscopy together with thermography is used to determine the anode surface temperature around CZ after the extinction of an anode plume. The central anode surface temperature varies from 1530 to 950 K within 20 ms after CZ.

Multimorphological top-hat-based multiscale target classification algorithm for real-time image processing.

The traditional top-hat method is a commonly used method that quickly separates targets from a background. It is used for its fast processing speed and wide range of applications on programmable hardware. However, in some important fields such as microfluidic control, medicine, aerospace, and optical measurement, the observed targets are often spotted with different sizes. The formation mechanism of multiscale spots varies from each other so that they can not be successfully extracted and classified by the traditional top-hat method. To ensure the integrity of targets with a specific size and suppressed noise, the imaging mechanism of different types of spots are studied, and an improved top-hat method with a gray-scale value-based transform is proposed. Compared with the traditional top-hat method, the proposed algorithm is more effective in completely removing unwanted spots. The calculated results of the simulated and real images verify the effectiveness of the double top-hat method in extracting targets with a specific size. Additionally, the resolution of this method is up to the parameter k, which has been discussed in this paper. Furthermore, a multi-top-hat algorithm is presented to distinguish spots of different sizes, and it could be used for real-time multiscale target detection and tracking, as well as real-time multiscale target detection and tracking.

Інвентаризація та оцінювання стану насаджень скверу біля обеліску слави в селі Межирічка

Досліджено видовий склад дендрофлори скверу обеліску Слави в с. Межирічка Голованівського району Кіровоградської області. Виявлено, що на території парку зростає 34 екземпляри хвойних і листяних деревних порід. Переважно це Acer negundo L. та Robinia pseudoacacia L., інші листяні перебувають у меншій кількості. З хвойних порід присутні Pinus nigra Arn. та Picea abies L. Оцінено відповідність вимог дерев до екологічних умов території скверу. Згідно з результатами дослідження, усі екземпляри належать до ослаблених дерев та за шкалою Л. П. Рисіна отримують оцінку 1. За відношенням до вмісту поживних елементів у ґрунті найчисельнішою є група мезотрофів. Відносно вибагливості рослин до освітлення, за С. С. П'ятницьким, найбільшу групу складають світлолюбні (малотіньовитривалі) – 50 %. Обстеження насаджень на наявність ураження хворобами та шкідниками показало, що їхніх відсоток знаходиться в межах 35 %. Найбільше уражень хворобами мали такі деревні породи, як T. cordata та J. regia. Найпоширенішими серед комах є мінуюча міль та гусінь кукурудзяного (стеблового) метелика. З оцінки життєздатності деревних насаджень скверу для встановлення відповідності умовам зростання видно, що 73,5 % від їх загальної кількості знаходяться в задовільному стані. Встановлено, що сквер перебуває у відносно задовільному стані. Для покращання його декоративних якостей і повноцінного виконання ними всіх передбачуваних функцій надано відповідні рекомендації.

The numerical classification and grading standards of daylily (Hemerocallis) flower color.

This study collected 183 Hemerocallis varieties to conduct numerical classification of flower color and provide valuable baseline data and foundational theory for normalization and precision of Hemerocallis. The color CIELab phenotypes were collected via colorimeter (CR-10 Plus), which separately measured three sepal and petal parts (throat, eye and limb). The colors of experimental samples were artificially named by the Royal Horticultural Society Colour Chart (RHSCC). All the data were analyzed using R software. The results showed that the throat was predominantly green-yellow, light yellow and yellow; green-yellow accounted for the largest proportion of sepals (67.76%) and petals (69.40%). The eye was more abundant, and there were significant differences between sepals and petals. The limb was clustered into five color groups (orange, yellow, pink, red and purple); the yellow group had the most varieties for both sepals and petals, containing 57.38% and 55.74%, respectively. Both sepals and petals had significant differences (p<0.0001) in color (△E), redness (a*) and color angle (h) for the throat, eye and limb. However, the difference in CIELab phenotypes between the eye and limb were not significant. According to “Dual Classification”, the color classification standard was proposed as a 3-level standard. The color of sepal and petal consistency served as the first standard, and the color of limb was the second standard. The color pattern types of pure, gradual change, watermark and eye spot, served as the third standard. It has been proposed that all the 183 experimental varieties were divided into two categories, five groups and finally four types. This study provides a classification basis and reference for numeric and standardized color phenotype description for Hemerocallis.

Asset stranding in natural gas export facilities: An agent-based simulation

This paper analyses the scale of asset stranding of global natural gas production and transmission infrastructure between 2015 and 2060 using Gas-GAME-Spot, an agent-based gas-sector model. It extends the existing modelling efforts by considering contract constraints in short-term gas sales and explicitly simulating trade in two types of spot markets. The study also contributes to the methodologies of stranded asset analysis by taking into account two aspects which are commonly overlooked: market fluctuation subject to the changing export capacities and the impacts of market signals on investor decision making. The results of the base scenario indicate that if gas demand follows current policy expectations, the scale of asset stranding is likely to be limited. This is attributed to supply capacity shortage of medium-sized exporters due to a slowing of their investment. Moreover, two alternative scenarios show that, when the markets face sudden reduction in demand, they leverage the flexibilities in their long-term contracts and opt more gas through spot trade. Though the issue of stranding is not significant globally in these scenarios, exporting regions with high short-run delivery costs, especially North America and Australia, have higher risks of asset stranding as they are arguably less competitive in spot sales.

Empirical research on the functions of audiovisual advertising from the perspective of recipients — students of the Journalism and Social Communication Faculty at the University of Łódź

In current research on the subject, three dominant functions of advertising can be pointed out. These are: to inform, to persuade or to remind a recipient about the product. However, watching modern commercials in the media evokes a question about this typology being sufficient enough to cover the full spectrum of the commercial industry. The main goal of the article is to test the attitudes towards commercials in students in their junior year of the Journalism and Social Communication degree at the University of Łodź. This probe is exceptionally valuable, since many of these people in years to come will become involved in creating this type of broadcast by graduating with a “Advertising, Design and Visual Communication” major at our university. The experiment has been divided into three tiers, showing different types of TV spots in two of them. Doing this has enabled us to answer the question if watching these types of broadcasts can influence the attitude towards commercials and its functions on viewers.

HERBICIDE GENOTOXICITY REVEALED WITH THE SOMATIC WING SPOT ASSAY OF Drosophila melanogaster

The genotoxicity of the herbicides clomazone, linuron and simazine was detected using the somatic wing spot assay of Drosophila melanogaster . For the evaluation of the mutagenic and recombinogenic activities induced by the herbicides two crosses were used: the standard cross (ST) which expresses basal levels of cytochrome P450 enzymes and the high bioactivation cross (HB) with overexpression of P450 genes conferring increased sensitivity to promutagens and procarcinogens. Third-instar larvae were exposed by chronic feeding (48 h) to three different concentrations of each herbicide. The frequencies of spots per individual in the treated series were compared to the negative concurrent control series (water or 5 % ethanol solution depending on the herbicide). Clomazone showed positive results for small and total spots in both the ST and the HB crosses. Linuron was positive at all concentrations tested for small and total spots in the ST cross while only positive for small and total spots at the highest concentration assayed in the HB cross. Simazine did not produce positive results in the ST cross while it was positive in the HB cross. The bifunctional cross-linking agent mitomycin C (MMC – 0.15 mM) was used as positive control and produced as expected a significant increase of all types of spots in both crosses. In conclusion, the positive results were due to induced mutations and not by recombinogenic activity, furthermore the significant increase in the frequency of total spots was mainly due to the induction of small single spots.

Determination of Cr density during high-current anode modes in vacuum arc

The results of Cr density during high-current anode modes using broadband absorption spectroscopy are presented. The vapor density of atomic Cr is determined during the formation of anode spot type 1, anode spot type 2, and anode plume. Cr I resonance lines at 425.43 nm are used for the analysis. An AC current pulse with a maximum of about 7 kA and a frequency of 100 Hz is applied. By adjusting the opening time or contact opening speed, anode spot type 1 and type 2 may appear. The temporal evolution of the ground state density of Cr atoms shows about two times higher metal vapor during anode spot type 2 compared with anode spot type 1. The vapor density during an anode plume following anode spot type 2 is also determined and is compared with the same time instant in which no anode plume appears, i.e., only when anode spot type 1 appears.

Crime concentration in Perth CBD: a comparison of officer predicted hot spots, data derived hot spots and officer GPS patrol data

ABSTRACTIn an applied criminology context, recent meta-analyses and randomized control trials have demonstrated the benefits of targeting police patrols at hot spots or concentrations of street level crime and disorder. This study asked a group of 79 police officers from Perth to make a prediction, based on their experience, of where hot spots of crime would occur in the near future. Officer-defined hot spots were then compared with hot spots derived from police crime data over the preceding 24 month period. Finally, officer patrol time was tracked using a GPS-enabled smart phone and overlayed against both types of hot spot. This analysis indicates that police officers should be supported with hot spot mapping tools which identify data derived micro-places with persistent issues. Analysis also reveals officers patrol both their own and data-derived hot spots regularly; however, they only stay for a matter of a few minutes. These short stays are contrary to best evidence, which dictates officer patrols in hot spots should last for approximately 15 minutes in order to create both initial and residual deterrence.

An improved arc model for vacuum arc regarding anode spot modes

This paper introduces an improved arc model for vacuum arcs. In this model, the impact of different high-current anode modes is considered. An existence diagram for different high-current anode modes including footpoint, anode spot type 1 and type 2 is determined using emission spectroscopy, high-speed camera, and electrical measurements. During transition from diffuse to the high-current mode the arc voltage will be affected due to high evaporation rate, which can affect dielectric recovery of vacuum interrupter. Conventional arc models cannot trace the corresponding sudden changes in the arc voltage during the transition to anode spot type 2. Therefore, different areas of discharge modes are determined based on the threshold current and gap length for AC 50 Hz and cylindrical contacts made of CuCr7525. The physical parameters of the arc, e.g. the arc temperature, contact geometry and material is considered as implicit parameters in the existence diagrams. The boundaries of the areas are used as a user-defined library in EMTP-RV for a new electric arc model. The voltage behavior of the arc can be predicted well in a larger range of peak currents by the results. The validity of the model is also investigated for AC 100 Hz and pulsed DC 10 ms.

The expressions and meaning of the painting poetry about a scenic spot on the 15 th century

이 논문은 15세기 名勝에 대한 題畵詩를 대상으로 그 표현방식과 의미를분석한 것이다. 15세기는 館閣文人을 중심으로 제화시가 성행하던 시기다. 또한 조선 초 각종 지리지 편찬과 지도 제작, 집경시의 유행은 명승에 대한 관심을 고조시켰다. 이러한 분위기 속에서 15세기 名勝圖 題畵詩는 당대명승이라 불리던 공간의 상징성이 集積된 결과물이라 할 수 있다. 명승이 그림으로, 다시 시로 읊어지면서 勝景이라는 인식이 강화되고 그 장소에 얽힌 敍事가 구체화되었기 때문이다. 15세기 명승도 제화시를 남긴 문인은 이승소, 서거정 등이 있다. 이는 명승에 대한 題詠詩와 비교했을 때 더욱 두드러진다. 실제 景物을 대상으로 한 명승 제영시는 그곳에서의 개별적 經驗과 이것이 불러일으키는 개인적 抒情이 주된 내용인데 반해, 명승을 그린 그림을 소재로 삼은 명승도 제화시는 명승에 대한 상징 의미와 이를 公的으로 향유하려는 집단의 식을 강하게 표출한다. 또한 그림의 소재인 명승의 성격, 즉 원래 주어진 自 然 그대로의 풍광인지, 사람들이 2차적으로 부여한 의미에 따른 人文 경관인지에 따라 시의 주체가 달라진다. 자연풍광의 경우 명승이 그림과 시의 창작을 촉발시키는 주체로 작용하여 그 형승의 모습을 재현하고, 인문경관의 경우 명승 속 人物과 文物이 주체가 되어 명승에 이미지를 입히고 의미를 부여한다.This paper analyzes the expressions and meaning, focusing on the painting poetry[題畵詩] about a scenic spot on the 15th century. The 15th century was a period when painting poetry was active, centering on the Gwangak(館閣) literary person[文人]. At the beginning of the Joseon Dynasty, an interest in scenic spot was increased. In this atmosphere, the painting poetry of a scenic spot-picture can be said to be the result of the symbolism of the space called the scenic spot at that time. As the scenic spot is created in paintings and again in the poetry, the perception that it is a masterpiece is strengthened and the narrative enclosed in the place is embodied. The literary person who left the painting poetry about a scenic spot on the 15th century were Lee Seung-so(李承召) and Seo geo-Jeong(徐居正). This is more prominent when compared to the place poetry[題詠詩]. The place poetry about a scenic spot focuses on the individual experience and feeling. On the other hand, the painting poetry about a scenic spot strongly expresses the symbolic meaning and the collective consciousness of it. In addition, as the type of scenic spot, the painting poetry has a different subject. In the case of natural scenery, the scenic spot acts as a subject that triggers the creation of paintings and poetry, and reproduces the figure of it. In the case of human scenery, scenic characters and artifacts become the subjects that give the scenic spot images and meaning.

Vapor density and electron density determination during high-current anode phenomena in vacuum arcs

This paper presents time and space resolved results of spectroscopic measurements in a vacuum circuit breaker experiment during high-current anode modes, i.e., anode spot type 1, anode spot type 2, and anode plume. Excited state densities for Cu I, Cu II, and Cu III transitions are determined during anode spot type 1 and type 2 as well as for the anode plume. Temporal evolution of excited state densities and Cu neutral gas densities are also determined during anode spot type 1 and type 2, which show that the Cu density in front of the anode during anode spot type 2 is about 6 times higher compared to anode spot type 1. Electron densities are also determined during both types of anode spot using Stark broadening. The electron densities during anode spot type 2 are remarkably higher than during anode spot type 1.

Square superlattice pattern by interaction of surface discharge in gas discharge

We report on a square super-lattice pattern by interaction of surface discharge with the applied voltage increasing in a dielectric barrier discharge system. The pattern consists of bright spots, bright lines, and dim spots. The spatio-temporal dynamics of the pattern is studied by photomultiplier (PMT), high speed video camera and normal camera. Results show that the bright spots discharge several times during each half cycle and they are formed by volume discharge (VD), bright line was formed by superposition of the surface discharges (SDs) over a long period of time, and the dim spots are consist of four small spots. The dim spots are formed by the repulsion of SDs. The light intensity of the bright and dim spots of the patch was compared and it was found that the ratio of the light intensity of the bright spot to the dark spot was about 10. The measurement of the emission spectroscopy show the parameters of the bright spots are different from that of the bright lines and dim spots, the discharge type of bright spots an dim spots is different, and reflects that the dim spots are formed by the interaction of SDs. The formation of the pattern is explained by the wall charge theory.

Monitoring surface mining belts using multiple remote sensing datasets: A global perspective

Quantifying the spatiotemporal change of land cover and understanding their ecological, environmental, and socioeconomic impacts are important for sustainable development. Surface mining by the minerals industry is one driver of the changes in land cover, leading to loss of natural vegetation and top soils, and interruption of ecosystem service flows. This study investigates the effectiveness of remote sensing datasets to identify and map land cover changes, with the specific goal of understanding the impact of surface mining activities on land cover globally from 1980s to 2013. Diverse remote sensing datasets with long term observations are analyzed, including high-resolution images in Google Earth, Landsat Thematic Mapper (TM)/Enhanced Thematic Mapper Plus (ETM+)/Operational Land Imager (OLI), the Moderate Resolution Imaging Spectroradiometer (MODIS) Vegetation Index (VI) product and Defense Meteorological Satellites Program (DMSP)/Operational Linescan System (OLS) stable night-time light. The results indicated that after entering 21st century, North America (e.g., the United States and Canada) was the only continent to have more surface mining spots categorized as Shrink type (rehabilitated) rather than Expand type. South America (e.g., Chile and Brazil) and Asia (e.g., India and China) had the highest proportions of Expand Type of surface mining spots. Detailed demonstrations on how those remote sensing datasets could help in mining spot monitoring are presented.

Node-Weighted Amino Acid Network Strategy for Characterization and Identification of Protein Functional Residues.

The study of functional residues (FRs) is essential for understanding protein functions and biological processes. The amino acid network (AAN) has become an emerging paradigm for studying FRs during the past decade. Current AAN models ignore the heterogeneity of nodes and treat amino acids in the AAN as the same. However, the properties of each amino acid node are of fundamental importance. We here proposed a node-weighted AAN strategy termed the node-weighted amino acid contact energy network (NACEN) to characterize and predict three types of FRs, namely, hot spots, catalytic residues, and allosteric residues. We first constructed NACENs with their nodes weighted based on structural, sequence, physicochemical, and dynamical properties of the amino acids and then characterized the FRs with the NACEN parameters. We finally built machine learning predictors to identify each type of FR. The results revealed that residues characterized with NACEN parameters are more distinguishable between FRs and non-FRs than those with unweighted network ones. With few features for classification, NACEN yields comparable performance for FR identification and provides residue level prediction for allosteric regulation. The proposed strategy can be easily implemented to other functional residue identification. An R package is also provided for NACEN construction and analysis at http://sysbio.suda.edu.cn/NACEN/index.html .

Morphology of intervertebral disc ruptures evaluated by vacuum phenomenon using multi-detector computed tomography: association with lumbar disc degeneration and canal stenosis

BackgroundThe progression of intervertebral disc (IVD) degeneration leads to rupture within IVD tissues. The location and appearance of areas of gaseous radiolucency in the IVD, known as vacuum phenomena (VPs), are considered to indirectly indicate the position and extent of IVD rupture. The clinical significance of VPs in degenerated IVDs is not fully understood. The purpose of this study is to assess and classify the morphology of IVD ruptures by the presence of intradiscal VPs, and to examine the association between morphological VP-positive IVD ruptures and degenerative lumbar diseases.MethodsIVD rupture was evaluated by the presence of VPs using computed tomography (CT) imaging. VP shape (spot, linear, island) was classified using sagittal imaging, and VP distribution (A-N: anterior AF-NP; N: NP only; N-P: NP-posterior AF; A-N-P: anterior and posterior AF-NP) was classified using axial imaging. The disc height index (DHI) was calculated from lateral radiographs. Disc degeneration and lumbar spinal stenosis were evaluated by MRI grade.ResultsIn the VP shape analysis, the island type was the most common, followed by linear and spot types. In the VP distribution analysis, A-N was the most common group, followed by N, N-P and A-N-P. Intra- and inter-observer reliabilities were statistically sufficient to classify different rupture shapes and distributions. The DHI tended to be lower in discs that contained VPs, especially in the anterior AF area. The shape and distribution of intradiscal VPs were significantly associated with the degree of disc degeneration and lumbar spinal stenosis graded by MRI. Discs with VPs extending from the NP into the anterior and/or posterior AF had a significantly higher proportion of advanced disc degeneration (Pfirrmann’s classification: grades IV and V).ConclusionsThis is the first study to analyze the morphology of IVD rupture evaluated by the presence of intradiscal VPs using CT imaging. This classification can comprehensively present the shape and axial distribution of VPs within IVDs. Intradiscal VPs are associated with the progression of disc degeneration and lumbar spinal stenosis.

The Effect of the Type of Alternative Housing System, Genotype and Age of Laying Hens on Egg Quality

Abstract The present study investigated the effect of the type of alternative housing system, and genotype and age of laying hens on physical traits of egg shell and contents. It was demonstrated that alternative housing system type influenced egg weight and shape, and eggshell color and yolk color intensity. Eggs from free-range system were heavier and were characterized by more intense yolk color. No effect of alternative housing system type on albumen height, value of Haugh units (HU value) and presence of meat and blood spots was noted. Hen genotype had a significant effect on egg weight and eggshell color intensity in each of the alternative housing systems tested in this study. Hy-line Brown hens laid heavier eggs than hens of native breeds. Genotype was also observed to affect egg content traits (albumen height, HU values and presence of meat and blood spots). Independently of the type of alternative housing system, most blood and meat spots were noted in eggs of hens laying brown-shelled eggs, i.e. R-11 and Hy-line Brown layers. Laying hen age significantly impacted on egg weight, yolk percentage, eggshell traits (color intensity, weight, thickness and strength) and egg content traits (HU value, yolk weight and color intensity, presence of meat and blood spots). Older hens laid heavier eggs with a greater yolk percentage but with thinner eggshell.

THE APPLICATION OF CHINESE HIGH-SPATIAL-RESOLUTION REMOTE SENSING SATELLITE IMAGE IN LAND LAW ENFORCEMENT INFORMATION EXTRACTION

Abstract. Chinese high -resolution (HR) remote sensing satellites have made huge leap in the past decade. Commercial satellite datasets, such as GF-1, GF-2 and ZY-3 images, the panchromatic images (PAN) resolution of them are 2 m, 1 m and 2.1 m and the multispectral images (MS) resolution are 8 m, 4 m, 5.8 m respectively have been emerged in recent years. Chinese HR satellite imagery has been free downloaded for public welfare purposes using. Local government began to employ more professional technician to improve traditional land management technology. This paper focused on analysing the actual requirements of the applications in government land law enforcement in Guangxi Autonomous Region. 66 counties in Guangxi Autonomous Region were selected for illegal land utilization spot extraction with fusion Chinese HR images. The procedure contains: A. Defines illegal land utilization spot type. B. Data collection, GF-1, GF-2, and ZY-3 datasets were acquired in the first half year of 2016 and other auxiliary data were collected in 2015. C. Batch process, HR images were collected for batch preprocessing through ENVI/IDL tool. D. Illegal land utilization spot extraction by visual interpretation. E. Obtaining attribute data with ArcGIS Geoprocessor (GP) model. F. Thematic mapping and surveying. Through analysing 42 counties results, law enforcement officials found 1092 illegal land using spots and 16 suspicious illegal mining spots. The results show that Chinese HR satellite images have great potential for feature information extraction and the processing procedure appears robust.