检索结果-南通市图书馆

Estimation of Passenger Car Equivalents for Basic Freeway Sections at Different Traffic Conditions

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 Engineering and Technology 2016年第2期4卷 153-159页

作者： jalal Taqi Shaker Al-Obaedi College of Engineering University of Al-Qadisiya Al-Qadisiya Iraq

Passenger car equivalent (PCE) is an important factor which is used to convert traffic volumes containing proportions of heavy good vehicles (HGVs) to a unify measure containing only passenger cars units (PCU). This paper uses large data base of real traffic raw data extracted from loop detector before being aggregated to estimate PCEs. These detectors are located on the M25 and the M42 motorway sites in the United Kingdom. The selected sites represent basic freeway segments as they are far away from the influence of entrance (on ramp) and exit (off ramp) sections. The data are filtered properly so as to estimate passenger car equivalents (PCEs) using lagging headway method for close following situations at different speed ranges. The results suggest that for the same location, the equivalency factors are varies significantly based traffic speed. However, it is proved that such variation with traffic speed is influenced by the differences in lengths between HGVs and cars. Regression models have also been developed linking the PCEs with traffic speed.

关键词： Passenger Car Unit Passenger Car Equivalent Trucks Equivalency Factor Lagging Headway Close Following

Impact of light intensity on flowering time and plant quality of Antirrhinum majus L. cultivar Chimes White

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2004年第4期 30-35页

作者： MUNIR Muhammad,JAMIL Muhammad,BALOCH jalal-ud-din,KHATTAK Khalid Rehman Faculty of Agriculture Gomal University D.I.Khan Pakistan Faculty of Agriculture Gomal University D.I.Khan Pakistan Faculty of Agriculture Gomal University D.I.Khan Pakistan Faculty of Agriculture Gomal University D.I.Khan Pakistan

Shades of different light intensities (29%, 43%, 54%, 60% or 68%) along with control (no shade) were studied to observe their effects on the flowering time and plant quality. A hyperbolic relationship was observed between different light intensities under shade, and time to flowering. The total number of flower buds showed a curvilinear relationship with light intensities. Growth parameters related to the plant characteristics such as plant height, leaf area and plant fresh weight were improved under shading treatments at the expense of flowering time and number of flower buds. However, both linear and polynomial models applied assumed that cultivar Chimes White was equally sensitive to light intensity throughout development.

关键词： Antirrhinum majus L. Snapdragon Growth and development Flowering Light intensity.

Rectal Endometriosis Revealed by a Colonic Tumor Obstruction: A Case Report

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

Open Journal of Obstetrics and Gynecology 2023年第9期13卷 1625-1631页

作者： Bouchra Fakhir Fatima Boutaibi Abderrahim Aboulfalah Abderraouf Soummani Khalid Rabbani Ayoub Kazza Abdelwahed Louzi Issam Azzahiri Btissam Zouita Hicham jalal Brahim Benhami The Department of Gynecology Obstetrics at Mohammed VI University Hospital Center Cadi Ayyad University Arrakech Morocco The Department of General Surgery at Mohammed VI University Hospital Center Cadi Ayyad University Marrakech Morocco The Department of Radiology at Mohammed VI University Hospital Center Cadi Ayyad University Marrakech Morocco Zhoro Elhadika Elkobra Anatomical Pathology Laboratory Marrakech Morocco

Endometriosis is defined as the presence of endometrial tissue that is located outside the uterine cavity, associated with fibrosis and inflammatory reaction. The most common atypical locations are the gastrointestinal tract, urinary tract, lung, as well as abdominal surgical scars. Its diagnosis is still very difficult, especially when it manifests itself as an acute large bowel obstruction. We report the rare case of a 41-year-old patient diagnosed with acute colonic obstruction following a rectal tumor. She had undergone colonostomy even though colonoscopy biopsies were nonspecific, and a computed tomography (CT) scan was requested. It showed an adnexal heterogenous mass, therefore the patient had a laparotomy and a subtotal hysterectomy with bilateral salpingo-oophorectomy and a biopsy of the recto-colonic hinge. Histologic examination revealed a diagnosis of rectal endometriosis. The purpose of this work is to report a rare case of colonic endometriosis responsible for an acute large bowel obstruction.

关键词： Endometriosis Rectal Endometriosis Colonic Obstruction Rectal Tumor

Asymptomatic Paget＇s disease of bone presenting with complete atrioventricular block

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 Medical Journal 2008年第22期121卷 2357-2359页

作者： A. Rauoof Malik Nazir A. Lone Hilal A. Rather Vicar M Jan Javid A. Malik Khursheed A. Khan S. jalal Departments of Cardiology Sher-I-Kashmir Institute of Medical Sciences Soura Pulmonary Medicine SKIMS Medical College Bemina Srinagar Kashmir India

Paget＇s disease of bone is a deforming bone disease （osteitis deformans） characterized by increased bone remodeling, bone hypertrophy, and abnormal bone structure, leading to bone expansion, deformities, easy fractures, and occasionally, neoplastic transformation. It is the second most common bone disorder after osteoporosis. The disease is relatively rare in Asia but is common in Europe and North America, affecting approximately 2% of the population over 50 years,

关键词： Paget's disease atrioventricular block, cardiac calcifications

Occurrence and ecological risk assessment of pharmaceutical products in the Kadicha river in Lebanon

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

Emerging Contaminants 2021年第1期7卷 196-203页

作者： Fatme Merhabi Elena Gomez Nancy Ariza Castro Helmieh Amine David Rosain jalal Halwani Helene Fenet Hydrosciences Montpellier IRDCNRSUniversity of MontpellierMontpellierFrance Water&Environment Science Laboratory Faculty of Public Health(FSP III)Lebanese UniversityTripoli1300Lebanon Escuela de Química Instituto Tecnologico de Costa RicaCartago 159-7050Costa Rica

Contamination of aquatic systems with pharmaceutical products represents a rising *** Kadicha river in Northern Lebanon is an illustrative example of a small Mediterranean river affected by rapid urbanization and population *** paper reports the first study on occurrence and ecological risk assessments on selected pharmaceuticals and their metabolites within the Kadicha *** this purpose,surface water samples were collected over two sampling campaigns from twelve sites impacted by urban,rural,and mixed land uses(residential and agricultural zones)within the Kadicha river *** the studied pharmaceuticals,six compounds(carbamazepine,diclofenac,acetaminophen,sulfamethoxazole,ofloxacin,and atenolol)were detected with detection frequencies and concentrations that vary according to the sampling *** was the most frequently detected compound and showed the highest concentrations(not detected-290 ng/L).The presence of pharmaceuticals carbamazepine,ofloxacin(not detected-190 ng/L),and atenolol(not detected-93 ng/L)was related to raw wastewater inputs in the water body,while the presence of sulfamethoxazole(not detected-23 ng/L)was associated with its usage in specific sites with livestock ***,the presence of acetaminophen(not detected-242 ng/L)and diclofenac(not detected-1055 ng/L)can be affected by their degradation properties in river *** highest concentrations were observed in the urbanized downstream area,while the lowest concentrations were within the rural upstream ***,the urbanized downstream area presents the highest potential risks for aquatic ***,ofloxacin may pose high ecotoxicological risks in this *** levels of contamination with pharmaceuticals do not exceed the concentrations reported in the ***,the levels of carbamazepine,diclofenac,and acetaminophen were more similar to sites receiving raw wastewaters,while the concentration levels of sulfamethoxazo

关键词： Kadicha river Pharmaceuticals Surface waters Wastewaters Potential risk Urbanization

False Positive Responses Optimization for Intrusion Detection System

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Information Security 2014年第2期5卷 19-36页

作者： jalal Baayer Boubker Regragui Aziz Baayer SIME Laboratory ENSIAS Mohammed V Suissi University Rabat Morocco

In Intrusion Detection Systems (IDS), the operation costs represent one of the big challenges for researchers. They are apart from the IDS cost acquisition and they comprise the costs of maintenance, administration, response, running and errors reactions costs. In the present paper, we focus on the missed reactions which include False Positive (FP) and False Negative (FN) reactions. For that a new optimization cost model is proposed for IDS. This optimization proposes a minimal interval where the IDSs work optimally. In simulation, we found this interval as a trade-off between the damage costs and the FP.

关键词： Cost Model Intrusion Detection System False Positive False Negative Damage Costs and Optimization

Novel hybrid models of ANFIS and metaheuristic optimizations (SCE and ABC) for prediction of compressive strength of concrete using rebound hammer field test

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Frontiers of Structural and Civil Engineering 2022年第8期16卷 1003-1016页

作者： Dung Quang VU Fazal Ejalal Mudassir IQBAL Dam Duc NGUYEN Duong Kien TRONG Indra PRAKASH Binh Thai PHAM University of Transport Technology Hanoi 100000Vietnam Department of Civil Engineering Shanghai Jiao Tong UniversityShanghai 200240China Department of Civil Engineering University of Engineering and TechnologyPeshawar 25120Pakistan DDG(R)Geological Survey of India Gandhinagar 382010India

In this study,we developed novel hybrid models namely Adaptive Neuro Fuzzy Inference System(ANFIS)optimized by Shuffled Complex Evolution(SCE)on the one hand and ANFIS with Artificial Bee Colony(ABC)on the other *** were used to predict compressive strength(Cs)of concrete relating to thirteen concrete-strength affecting parameters which are easy to determine in the *** and laboratory tests data of 108 structural elements of 18 concrete bridges of the Ha Long-Van Don Expressway,Vietnam were *** dataset was randomly divided into a 70:30 ratio,for training(70%)and testing(30%)of the hybrid *** of the developed fuzzy metaheuristic models was evaluated using standard statistical metrics:Correlation Coefficient(R),Root Mean Square Error(RMSE)and Mean Absolute Error(MAE).The results showed that both of the novel models depict close agreement between experimental and predicted ***,the ANFIS-ABC model reflected better convergence of the results and better performance compared to that of ANFIS-SCE in the prediction of the concrete ***,the ANFIS-ABC model can be used for the quick and accurate estimation of compressive strength of concrete based on easily determined parameters for the design of civil engineering structures including bridges.

关键词： shuffled complex evolution artificial bee colony ANFIS concrete compressive strength Vietnam

Computed Tomography of the Petrous Bone: Particularities in Children

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

Advances in Molecular Imaging 2018年第2期8卷 15-24页

作者： Dounia Basraoui Kenza Elatiqi Hicham jalal Mother and Child Radiology Department Mohamed VI University Hospital Marrakesh Morocco

Like any organ in children, the ear has particular anatomical features that are well shown in imaging. The petrous bone computed tomography (CT) is a valuable tool for diagnosing ear pathologies and evaluating surgical possibilities. In children, the ear has the peculiarity of having the morphology and size of adults, and the only difference resides in the components of the middle and inner ear related to the growth of the temporal bone and the state of ossification which are progressive with age. Some aspects of growth can simulate pathology and must be known. The pneumatisation of the temporal bone occurs gradually after birth and in several outbreaks until adulthood. The external auditory canal, the internal auditory meatus and the petromastoid canal progressively reach the adult aspect because of the growth of the petrous bone. This work aims to highlight the particularities of the petrous bone CT in pediatrics, since it has become widely used in the exploration of malformations, trauma, infectious complications of the ear and in the assessment of deafness.

关键词： Petrous Bone Children CT Ear Development

Investigating of the Microstructure and Mechanical Properties of Al-Based Composite Reinforced with Nano-Trioxide Tungsten via Accumulative Roll Bonding Process

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Open Journal of Metal 2017年第1期7卷 9-23页

作者： jalal Kahani Khabushan Soheila Bazzaz Bonabi R&D Department Oghab Afshan Industrial & Manufacturing Company Semnan Iran Faculty of Materials and Metallurgical Engineering Semnan University Semnan Iran

In the present investigation, an Al/WO3p metal matrix nanocomposite was fabricated by accumulative roll bonding (ARB) technique. Microstructural evaluation and mechanical properties of specimens were studied by Field Emission-Scanning Electron Microscopy, X-ray Diffraction, microhardness and tensile test. Several factors that affect uniform distribution of reinforcing particles were investigated. At the initial stages of ARB process particle free zones as well as particle clusters were observed in the microstructure of the composite. After 12 ARB cycles, a nanocomposite with a uniform distribution of nanoparticles was produced. It was shown that the tensile strength of the ARBed composite enhanced with the increasing number of ARB cycles. After the first cycle, a significant increase was observed in the tensile strength of nanocomposite in 2.0 percent volume of WO3p, from 89 MPa to 128 MPa (almost 1.4 times increase in strength). After the final cycle, the tensile strength value increased to 205 MPa (that is almost 2.3 times increase in strength) due to the strain hardening and grain refinement. The X-ray diffraction results showed that Al/WO3p nanocomposite with the average crystallite size of 41 nm was successfully attained after 12 cycles of the ARB process. Finally, observations revealed that the fracture mode in Al/WO3p nanocomposite was of type shearing ductile fracture with elongated shallow dimples.

关键词： Accumulative Roll Bonding Nanocomposite Microstructure Mechanical Properties