12 research outputs found

    Creating 3D city models from satellite imagery for integrated assessment and forecasting of solar energy

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    Buildings are the most prominent component in the urban environment. The geometric identification of urban buildings plays an important role in a range of urban applications, including 3D representations of buildings, energy consumption analysis, sustainable development, urban planning, risk assessment, and change detection. In particular, 3D building models can provide a comprehensive assessment of surfaces exposed to solar radiation. However, the identification of the available surfaces on urban structures and the actual locations which receive a sufficient amount of sunlight to increase installed power capacity (e.g. Photovoltaic systems) are crucial considerations for solar energy supply efficiency. Although considerable research has been devoted to detecting the rooftops of buildings, less attention has been paid to creating and completing 3D models of urban buildings. Therefore, there is a need to increase our understanding of the solar energy potential of the surfaces of building envelopes so we can formulate future adaptive energy policies for improving the sustainability of cities. The goal of this thesis was to develop a new approach to automatically model existing buildings for the exploitation of solar energy potential within an urban environment. By investigating building footprints and heights based on shadow information derived from satellite images, 3D city models were generated. Footprints were detected using a two level segmentation process: (1) the iterative graph cuts approach for determining building regions and (2) the active contour method and the adjusted-geometry parameters method for modifying the edges and shapes of the extracted building footprints. Building heights were estimated based on the simulation of artificial shadow regions using identified building footprints and solar information in the image metadata at pre-defined height increments. The difference between the actual and simulated shadow regions at every height increment was computed using the Jaccard similarity coefficient. The 3D models at the first level of detail were then obtained by extruding the building footprints based on their heights by creating image voxels and using the marching cube approach. In conclusion, 3D models of buildings can be generated solely from 2D data of the buildings’attributes in any selected urban area. The approach outperforms the past attempts, and mean error is reduced by at least 21%. Qualitative evaluations of the study illustrate that it is possible to achieve 3D building models based on satellite images with a mean error of less than 5 m. This comprehensive study allows for 3D city models to be generated in the absence of elevation attributes and additional data. Experiments revealed that this novel, automated method can be useful in a number of spatial analyses and urban sustainability applications

    Bacterial Skin Abscess

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    Patients with skin and soft tissue infections may appear with the abscess. Erroneous diagnosis of these entities is common, and should carefully consider the possible alternative diagnoses. Risk for developing skin abscess factors includes disruption of the skin barrier, edema, venous insufficiency, and immune suppression. However, healthy individuals who have no risk factors may also develop these diseases. The most common microbiologic cause of abscess, a commonly group Streptococcus or Streptococcus pyogenes; Staphylococcus aureus (including methicillin-resistant strains) is a notable but less common cause. The most common microbiologic cause of skin abscess is S. aureus; a skin abscess can be caused by more than one pathogen. The diagnosis is based on skin abscess usually on the clinical manifestations. It must be subject to patients with disposable abscess incision and drainage, with a test of culture and susceptibility of materials wet. There is no justification for the blood of patients in the cultures of the abovementioned circumstances. It can be a useful radiographic examination to determine whether the skin abscess is present (via ultrasound) to distinguish cellulitis from osteomyelitis (via magnetic resonance imaging). There may be a justification for radiological assessment in patients with immune suppression, diabetes, venous insufficiency, or lymphedema in patients with persistent symptoms of systemic lymphatic obstruction

    Characterization of Novel Coronavirus and Pandemic of Covid-19 : an Overview

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    في الفترة الأخيرة من عام 2019 ، تم التعرف على فيروس كورونا الجديد ، المسمى حاليًا SARS-CoV-2 ، بسبب انتشار مرض الجهاز التنفسي الحاد في الصين في ووهان. خلال شهر فبراير 2020 ، حددت منظمة الصحة العالمية (WHO) أن COVID-19 هو مرض فيروس كورونا 2019. على مدى السنوات الخمسين الماضية، كانت هناك أعداد مختلفة من الفيروسات التاجية التي تسببت في مجموعة واسعة من الأمراض البشرية والطب البيطري. ومن المتوقع أن تستمر هذه الفيروسات في الظهور والتطور وتتسبب في الانتشار بالبشر بسبب قدرة الفيروسات على إعادة التجميع والتحول ونقل المرض إلى أنواع وخلايا عديدة. فيما يتعلق بفيروس كورونا، ستستمر الأبحاث المستقبلية في التحقيق في العديد من جوانب تكاثر الفيروس وامراضيته.  بداية، فإن فهم ميول الفيروسات المعنية للطفرة بين الأنواع، وتأكيد الإصابة في مضيف جديد آخر، وتحديد المستودعات الكبيرة لفيروسات كورونا سيساعد بشكل كبير في التنبؤ باين ومتى ستحدث الأوبئة المحتملة. نظرًا لأن الخفافيش تبدو مستودعًا مهمًا لهذه الفيروسات، فسيكون من المثير للاهتمام تحديد كيفية تجنب تطور المرض سريريًا والعدوى المستمرة. ثانيًا، تحديد كيفية ترميز البروتينات غير الهيكلية والملحقة للفيروس عبر بقايا فيروسات غير محددة وبدون وظيفة محددة وأيضًا يكون مهمًا لتحديد آليات عمل هذه البروتينات بالإضافة إلى تحديد دورها البارز في تضاعف الفيروس ثم احداث المرض .تحتاج هذه الدراسات إلى التوجه بشكل  رئيسي لتحديد مقدار العلاج المناسب الذي يهدف للسيطرة على العدوى.  بالإضافة إلى ذلك، توجد أيضًا العديد من الإنزيمات الفريدة المشفرة عبر فيروسات كورونا، مثل ADP-ribose-1 1-phosphatase ، في حقيقيات النوى الأعلى، مما يجعل دراستها قابلة للتطبيق لفهم الجوانب العامة للبيولوجيا الجزيئية والكيمياء الحيوية. ثالثًا، وبالمثل، فإن الحصول على صورة كاملة لتعقيدات RTC سيوفر إطارًا لفهم عملية تكرار الحمض النووي الريبي الفريدة التي تستخدمها هذه الفيروسات. أخيرًا ، فإن تحديد كيفية تسبب فيروسات كورونا في حدوث المرض ثم فهم الاستجابة المناعية للمضيف لمسببات الأمراض سيحسن بشكل كبير قدرتنا على تصنيع اللقاحات وتقليل عبء المرض.In the last period of 2019, the new corona virus, currently called SARS-CoV-2, recognized by way of the reason for the spread disease of acute respiratory in China in Wuhan. During February 2020, the World Health Organization (WHO) identified   COVID-19, as the 2019 coronavirus disease. Over the past 50 years, there have been different numbers of coronary viruses that have caused a wide range of human diseases and veterinary medicine. These viruses are expected to continue to appear, develop, and cause the spread of humans and viruses because of their ability to regroup, transform them and communicate a disease to numerous species in addition cells. Investigation of future for Coronavirus will ongoing for explore many aspects of virus duplication in addition pathogenesis. First of all, understanding tendencies for the viruses involved to hurdle among species, confirm contagion in another novel host, and identify large reservoirs of corona viruses   greatly help for predicting where and when possible epidemics will happen. Since bats appear an important viruses reservoir, it will be stimulating to limit how   can evade developing clinically evident of disease and persistent infection. Second, determining how  virus's non-structural and accessory proteins coded via  remain of viruses unmarked without a identified function and also be significant to determine the act mechanisms  of these proteins in addition to determine the  starring role in duplication  of viral then disease pathogenesis. These studies need to chief toward a major a plus the amount of appropriate treatment aims for control of infection. Additionally, several unique enzymes encoded via corona viruses, for example ADP-ribose-1 1-phosphatase, moreover exist in upper eukaryotes, creation their study applicable to learning common aspects of biochemistry and molecular biology. Third, likewise, obtaining a whole picture of RTC particulars will make available a background for learning replication of the unique RNA practice these viruses employ. Lastly, identifying just how coronaviruses reason disease then understanding the host's immune reaction for pathogen will greatly progress our capability to manufacture vaccines then decrease the disease burden

    Genetic Variation of Trichomonas vaginalis Isolates from Iraqi Women: Association with Fertility and Cervical Abnormalities

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    الخلفية/ الهدف: داء المشعرات المهبلية هو واحد من أكثر الأمراض غير الفيروسية المنقولة جنسيا, يسببه طفيلي Trichomonas vaginalis. لا يعرف سوى القليل عن التنوع الوراثي والهيكل المعيشي لهذا الطفيلي. هدفت هذه الدراسة إلى تحديد التنوع الوراثي لعزلات طفيلي المشعرات المهبلية وارتباطه بالخصوبة وتشوهات عنق الرحم. الأساليب: تم تعيين مجموعة من 154 امرأة عراقية ممن يراجعن قسم الولادة والامراض النسائية في عدد من مستشفيات محافظة بغداد خلال الفترة من شباط 2013 إلى نيسان 2014 ، لهذه الدراسة. تم استخراج الحمض النووي لعزلات الطفيلي من مزروع المسحات المهبلية. تم إجراء طريقة التنميط التتابعي المتعدد المواقع (MLST) لستة من الجينات المرجعية لدراسة التغيرات الجينية. النتائج: ثلاث وخمسون امرأة (34.41 ٪) قد أعطت نتيجة موجبة للأصابة بالطفيلي T.vaginalis. أظهرت طريقة MLST وجود اليلات مختلفة. وكان للمورث glut أعلى درجة من التغايرات بين المورثات الستة. الاستنتاج: يمكن الاستنتاج أن التنوع الوراثي في ​​الكائن الحي نفسه في عزلات العراق ، يمكن أن يرتبط بالنتائج السريرية. هناك حاجة إلى مزيد من الدراسات MLST لمقارنة عدد أكبر من العزلات من مختلف المواقع ودراسة الطفرات المحددة في المورثات المرجعية لنساء  اللاتي يعانين من العقم ومن تشوهات عنق الرحم. الكلمات المفتاحية: طفيلي المشعرات المهبلية. التغاير الوراثي, الخصوبة, تشوهات عنق الرحم, طريقة التنميط التتابعي المتعدد المواقع.Background: Trichomoniasis, is one of the most common non-viral sexually transmitted diseases caused by the parasite Trichomonas vaginalis. Little is known about the genetic diversity and population structure of this parasite. This study aimed to determine the genetic diversity of T. vaginalis isolated from Iraqi women and its association with the fertility and the cervical abnormalities. Methods: Overall, 154 Iraqi women attending the Gynecology Outpatient departments in Baghdad Province, Iraq from February 2013 to April 2014, were enrolled in this study. DNA of T. vaginalis isolates was extracted from the culture of high vaginal swabs. Multilocus sequence typing (MLST) method for six housekeeping genes was done in studying the genetic variations. Results: Fifty-three women (34.41%) were positive for T. vaginalis. MLST method resulted in different alleles. With glutaminase gene, the highest degree of variation was found among the six genes. Conclusion: The genetic diversity in the organism itself in Iraqi isolates can associate with clinical outcome. Further MLST studies are needed to compare a larger number of isolates from different localities and correlate the certain mutations in housekeeping genes to infertile women and patients with cervical abnormalities

    Abstracts from the 3rd International Genomic Medicine Conference (3rd IGMC 2015)

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    Study of Photons Emission Rate of Quark-Antiquark at Higher Energy

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    In this paper, the dynamic of quark and anti-quark interaction has been used to study the production of photons in the annihilation process based on the theory of chromodynamic. The rate of the photon is to be calculated for charm and anti-strange interaction c→γg system with critical temperature 113 and 130 MeV and photon energy GeV/c. Here the critical temperature, strength coupling and photons energy are assumed to be affected dramatically on the rate of photons emission of state interaction c, which can form gluon possible structures and photon emission state. The decreased photons emission yields with increased strength couple of quarks reaction due to increase critical temperature from 113 MeV to 130 MeV were predicted. We can be found less difference in photons rate for the two different critical temperatures and strength coupling

    Growth of GaxAs1-x Alloy and Characterized the Structural and Electrical Properties of Flashed Thin Films

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    Gallium Arsenide alloy has been grown successfully by single zone computerized furnace. The grown alloy have been crushed and deposited on glass substrate by flash evaporation technique with substrate temperature of 473 K, the film thickness was about 340 nm, the films annealed at 573 K for different duration times of annealing in the range of 60, 120 and 180 minutes. The experimental percentage concentrations of Gallium and Arsine are 0.48 and 0.52 respectively. X-ray diffraction spectra show that the as deposited film was amorphous. Amorphous film has the highest value of activation energy and the electrical conductivity, which they decreased after increasing duration times of annealing. Thermoelectric power measurements show that all prepared films are n-type. Thermal energy has decreased by increasing the duration times of annealing. The smallest value achieved by amorphous film. The hopping energy increased by increasing the duration times of annealing and the highest value has achieved by amorphous film

    A review of airborne contaminated microorganisms associated with human diseases

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    Biological contaminants refer to environmental contamination and food source with living microorganisms such as bacteria, molds, viruses, and fungi, in addition to mites, house dust, and pollen. Temperature, relative humidity, movement of air, and sources of nutrients have influenced the presence and spread of biological contaminants. Numerous living microorganisms can grow independently on each other, such as bacteria and fungi. Viruses (a small obligate parasite) depend on other living organisms for their development and for performing vital functions. Indoor air can contaminate with biological contaminants by a different status, including living, dead, or debris of the dead microorganisms which were transported through ventilation systems, when the microorganism components dissolve in water. They become aerosolized when the contaminants are physically disturbed, like in renovation or construction, and when the contaminants discharge harmful gases into the indoor environment. Most studies conducted in recent years agree that air pollution rates are increasing, bringing more risks to human health, as pollution is related to the risk of heart and lung disease and its effect on children, especially infants and newborns. Also, environmental pollution may have become the most dangerous disaster faced by humans, because it means environment retrogradation in which humans lives as a result of an imbalance within the compatibility of the constituent elements and loses its ability to carry out its natural role in self-removal of contaminants by the natural factors noticeable within air, land, and water. In some cases, many common infections can spread through airborne contaminated microorganisms such as Mycobacterium tuberculosis, measles virus (MV), influenza virus, Morbillivirus, chickenpox virus, norovirus, enterovirus, less commonly coronavirus, adenovirus, and respiratory syncytial virus (RSV). When an infected person coughs, talks, sneezes, has throat secretions, and releases nasal into the air, the airborne infection can spread. Bacteria or viruses spread out noticeably in the air or ground and transport to other persons or surfaces. This review provides the conception of biological contaminants and their properties, nature of the indoor environment, and adverse health effects associated with biological contaminants

    An overview of nanoparticles in drug delivery: Properties and applications

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    Today, in diverse medical and clinical fields, including cancer treatment, nanoscience has evolved and evolved. Cancer and its forms, on the other hand, have been rumored and inclusive, and many individuals suffer from this fatal and lethal condition. Actually, even with the medicinal effect, current therapeutic approaches, including chemotherapy, radiotherapy, etc., create symptoms that are inconvenient for patients. Scientists and scholars are also working to establish and, strengthen the options and methods of therapy to deal with this dangerous illness. Nanoscience and nanotechnology have been popular today, their different areas, including nanoparticles, are commonly used for a number of applications, especially for drug delivery and diagnostic products, and cases of imaging. Release mechanisms focused on nanotechnology have a profound effect on the release of cancer drugs. Biomaterials and bio-engineering developments are leading to novel approaches to nanoparticles that could offer a new way for cancer patients to improve. In the drug release method, Nano-technology has had a great effect on the selection of cancer cells, the release of a targeted drug, and the overcoming of traditional chemotherapy limitations. This article discusses the drug delivery to tumor tissue, a method that is more effective than traditional drug delivery methods, also many new nanoparticles have solved the problem of cell resistance to the drug, provided a new field in the treatment of cancer
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