112 research outputs found
Energy Efficiency Prediction using Artificial Neural Network
Buildings energy consumption is growing gradually and put away around 40% of total energy use. Predicting heating and cooling loads of a building in the initial phase of the design to find out optimal solutions amongst different designs is very important, as ell as in the operating phase after the building has been finished for efficient energy. In this study, an artificial neural network model was designed and developed for predicting heating and cooling loads of a building based on a dataset for building energy performance. The main factors for input variables are: relative compactness, roof area, overall height, surface area, glazing are a, wall area, glazing area distribution of a building, orientation, and the output variables: heating and cooling loads of the building. The dataset used for training are the data published in the literature for various 768 residential buildings. The model was trained and validated, most important factors affecting heating load and cooling load are identified, and the accuracy for the validation was 99.60%
Handwritten Signature Verification using Deep Learning
Every person has his/her own unique signature that is used mainly for the purposes of personal
identification and verification of important documents or legal transactions. There are two kinds of signature
verification: static and dynamic. Static(off-line) verification is the process of verifying an electronic or document
signature after it has been made, while dynamic(on-line) verification takes place as a person creates his/her
signature on a digital tablet or a similar device. Offline signature verification is not efficient and slow for a large
number of documents. To overcome the drawbacks of offline signature verification, we have seen a growth in
online biometric personal verification such as fingerprints, eye scan etc. In this paper we created CNN model
using python for offline signature and after training and validating, the accuracy of testing was 99.70%
Architectural Characterization of Client-side JavaScript Workloads & Analysis of Software Optimizations
A description of odd mass Xe and Te isotopes in the Interacting Boson-Fermion Model
Recent interest in spectroscopic factors for single-neutron transfer in
low-spin states of the even-odd Xenon Xe and even-odd
Tellurium, Te isotopes stimulated us to study these
isotopes within the frame work of the Interacting Boson-Fermion Model. The
fermion that is coupled to the system of bosons is taken to be in the positive
parity , , , and in the negative
single-particle orbits, the complete 50-82 major shell. The
calculated energies of low-spin energy levels of the odd isotopes are found to
agree well with the experimental data. Also B(E2), B(M1) values and
spectroscopic factors for single-neutron transfer are calculated and compared
with experimental data.Comment: Submitted to Nuclear Physics
Extensor indicis proprius to extensor pollicis longus tendon transfer with first dorsal interossei muscle flap cover for reconstruction of post traumatic thumb defect in an acute setting: a very rare case report
The thumb plays a vital role in the function of the hand and is indispensable part of gripping, pinching and other activities and therefore its reconstruction is a priority for every hand surgeon. Different flaps have been used in the soft tissue reconstruction of the thumb. Here we presented a 38 year male patient case of road traffic accident with trauma to the right upper limb having composite tissue defect involving the thumb with loss over the dorsum of the thumb with periosteal stripping and partial loss of the dorsal cortex of the metacarpal in which we have successfully performed thumb reconstruction in acute setting by doing extensor indicis proprius (EIP) to extensor pollicis longus (EPL) tendon transfer for the extensor tendon loss and soft tissue cover by using the ulnar head of first dorsal interossei muscle with overlying split thickness skin graft. EIP to EPL transfer is an efficient tendon transfer to restore the thumb extension in post-traumatic extensor loss of thumb without any functional donor site morbidity. First dorsal interossei muscle is a good and reliable reconstructive option for the small full thickness soft tissue defects over the first metacarpal first because of its axial blood supply. We recommend to divide the extensor indicis proprius tendon around half centimetre proximal to the extensor hood and suture this tendon remnant to the side by extensor digiti communis tendon while maintaining the finger extension and for the first dorsal interossei muscle flap preferably use the ulnar head of muscle for thumb reconstruction to avoid functional donor site morbidities
Long-term active problems in patients with cloacal exstrophy: a systematic review
BACKGROUND: Cloacal exstrophy (CE) is the most severe end of the Exstrophy-Epispadias Complex malformations spectrum. Improvements in postnatal management and well-established operative techniques have resulted in survival rates approaching 100%. This systematic review aims to define the prevalence of long-term active medical problems affecting CE patients after the first decade of life. METHODS: PubMed/Medline, Embase, Scopus, and ISI Web of Knowledge databases were used for the literature search. Original articles related to medical, surgical, and psychosocial long-term problems in CE patients >10 years of age were included in the study. Quality assessment of the articles was performed through the Newcastle-Ottawa Scale. Prevalence estimates and 95% CI were assessed for each outcome. RESULTS: Twelve studies were included. The most common long-term active problems identified were: urinary incontinence with a prevalence ranging from 9.1% to 85%; sexual function issues related to vaginal anomalies with a prevalence ranging from 8.3% to 71.3%, and uterine anomalies, with a prevalence from 14.3% to 71%; gender identity issues in 46, XY patients raised female had a prevalence from 11.1% to 66.7%. There is no documented history of paternity. Impairment of ambulatory capacity was recorded in 13.8% of patients. Only one paper studied psychological well-being, reporting significantly higher levels of depression among gender reassigned patients. CONCLUSIONS: Teenagers and adults born with CE have well defined long-term problems compared to the general population. Recognition and expert management are crucial to improve care and quality of life during and after the transition into adulthood
Synthesis and Characterization of Zno Nanoparticles Using Hydrothermal and Sol-Gel Techniques for Dye-Sensitized Solar Cells
في هذا البحث تم تخليق جسيمات نانوية نقية من أكسيد الزنك باستخدام طريقتي الهيدروثيرمال وطريقة الصول جل. من فحوصات حيود الاشعة السينية تبين أن متوسط حجم الحبيبة تتراوح بين من 25 الي 28 نانومتر وتاخذ شكلا كرويا. فحوصات طيف الامتصاص بينت أن العينات جميعها لها اعلي امتصاص في منطقة الاشعة الفوق بنفسجية. وتم حساب فجوة الطاقة للعينات فوجد انها تساوي 3.13 eV و3.16 eV للعينة التي حضرت بطريقة الهيدروثيرمال والصول جل على الترتيب. تم تحضير عينات لخلايا شمسية صبغية وتم استخدام 3 انواع من الاصباغ الكيمياءية كمتحسسات ضوئية. فحوصات الاشعة الفوق بنفسجية بينت ان صبغة الايوزين الاصفر Eosin Yتعطي اعلي امتصاص مقارنة بالاصباغ المستخدمة الاخري. تم رسم منحني الخواص لجميع العينات للخلايا الشمسية المحضرة وتم حساب جميع البارامترات اللازمة لتقييم اداء الخلية. العينة المصبوغة بصبغةEosin Y اعطت اعلي كفاءة Jsc = 4.25 (mA/cm2)، Voc = 0.51 V and η=1.08 %ZnO nanoparticles (ZnO NPs) were synthesized using hydrothermal and sol-gel techniques using zinc acetate dihydrate (Zn (CH3COO)2.2H2O) as a row material and methanol as a solvent. The structural properties of ZnO NPs were studied using EDX, XRD, TEM, and the optical properties were characterized using UV-VIS and PL spectroscopies. The synthesized ZnO NPs showed high purity and revealed a wurtzite (hexagonal) crystal structure with particle size (D) ranged from 25 nm to 28 nm. The UV-VIS absorption spectra of ZnO NPs samples and sensitizing dyes were performed. The obtained ZnO NPs exhibited the direct optical bandgap 3.15 eV. Dye-sensitized solar cells (DSSCs) were fabricated using synthesized ZnO NPs as a semiconducting layer, which was dyed with different low cost dyes such as Eosin B (EB), Eosin Y (EY) and Rhodamine B (RB) that was used to sensitize the photoanode (ZnO NPs). The experimental results showed a significant efficiency for the fabricated DSSCs of synthesized ZnO NPs via sol gel technique comparing to hydrothermal technique. The EY dye exhibited the best performance among others, where a conversion efficiency showed a noteworthy improvement from 0.12 to 1.08 %
A description of odd mass W-isotopes in the Interacting 2 Boson-Fermion Model
The negative and positive parity low-spin states of the even-odd Tungsten
isotopes, 183,185,187W are studied in the frame work of the Interacting
Boson-Fermion Approximation (IBFA) model. The fermion that is coupled to the
system of bosons is taken to be in the negative parity 2f_7|2, 2f_5\2, 3p_3\2,
3p_1\2 and in the positive parity 1i_13\2 single-particle orbits. The
calculated energies of low-spin energy levels of the odd isotopes are found to
agree well with the experimental data. Also B(E2) values and spectroscopic
factors for single-neutron transfer are calculated and found to be in good
agreement with experimental data
Comparison Between Diffusion-Weighted MRI and I-123-mIBG Uptake in Primary High-Risk Neuroblastoma
Background: High-risk neuroblastoma (HR-NB) has a variable response to preoperative chemotherapy. It is not possible to
differentiate viable vs. nonviable residual tumor before surgery.
Purpose: To explore the association between apparent diffusion coefficient (ADC) values from diffusion-weighted magnetic resonance imaging (DW-MRI), 123I-meta-iodobenzyl-guanidine (123I-mIBG) uptake, and histology before and after
chemotherapy.
Study Type: Retrospective.
Subjects: Forty patients with HR-NB.
Field Strength/Sequence: 1.5T axial DW-MRI (b = 0,1000 s/mm2
) and T2-weighted sequences. 123I-mIBG scintigraphy planar imaging (all patients), with additional 123I-mIBG single-photon emission computed tomography / computerized tomography (SPECT/CT) imaging (15 patients).
Assessment: ADC maps and 123I-mIBG SPECT/CT images were coregistered to the T2-weighted images. 123I-mIBG uptake
was normalized with a tumor-to-liver count ratio (TLCR). Regions of interest (ROIs) for primary tumor volume and different
intratumor subregions were drawn. The lower quartile ADC value (ADC25prc) was used over the entire tumor volume and
the overall level of 123I-mIBG uptake was graded into avidity groups.
Statistical Tests: Analysis of variance (ANOVA) and linear regression were used to compare ADC and MIBG values before
and after treatment. Threshold values to classify tumors as viable/necrotic were obtained using ROC analysis of ADC and
TLCR values.
Results: No significant difference in whole-tumor ADC25prc values were found between different 123I-mIBG avidity groups
pre- (P = 0.31) or postchemotherapy (P = 0.35). In the “intratumor” analysis, 5/15 patients (prechemotherapy) and 0/14
patients (postchemotherapy) showed a significant correlation between ADC and TLCR values (P < 0.05). Increased tumor
shrinkage was associated with lower pretreatment tumor ADC25prc values (P < 0.001); no association was found with pretreatment 123I-mIBG avidity (P = 0.17). Completely nonviable tumors had significantly lower postchemotherapy ADC25prc
values than tumors with >10% viable tumor (P < 0.05). Both pre- and posttreatment TLCR values were significantly higher
in patients with >50% viable tumor than those with 10–50% viable tumor (P < 0.05).
Data Conclusion: 123I-mIBG avidity and ADC values are complementary noninvasive biomarkers of therapeutic response in
HR-NB.
Level of Evidence: 4.
Technical Efficacy Stage: 3
Фармацевтическое производство в Йемене: реальности и стремления
The impact of strategic choices made in the Yemeni pharmaceutical industries sector on its
competitive advantages is investigated in this paper, as it is regarded as a leading industrial sector
and plays an important role in the development of the Yemeni economy, meeting the needs of the
local market at a reasonable price, and protecting and promoting society's public health.Исследовано влияние стратегического выбора, сделанного в секторе фармацевтической промышленности Йемена, на его конкурентные преимущества, поскольку он считается ведущим промышленным сектором и играет важную роль в развитии йеменской экономики, удовлетворяя потребности местного рынка в лекарствах по доступной цене,
а также в защите и укреплении общественного здоровья йеменских граждан
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