|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Flow of a Jeffery-Six Constant Fluid Between Coaxial Cylinders with Heat Transfer Analysis显示文摘In the present investigation we have discussed the flow of a Jeffrey-six constant incompressible fluid betweentwo infinite coaxial cylinders in the presence of heat transfer analysis.The governing equations of Jeffrey-six constant fluidalong with energy equation have been derived in cylindrical coordinates.The highly nonlinear equations are simplifiedwith the help of non-dimensional parameters and then solved analytically with the help of homotopy analysis method(HAM) for two fundamental flows namely Couette and Generalized Couette Bow.The effects of emerging parametersare discussed through graphs.The convergence of the HAM solution has been discussed by plotting h-curves. | Muhammad Yousaf Malik Azad Hussain Sohail Nadeem | 2011 | Communications in Theoretical Physics2011，56，8： | 1 |
| 2 | Foliation and the First Law of Black Hole Thermodynamics显示文摘There has been lots of interest in exploring the thermodynamic properties at the horizon of a black hole spacetime.It has been shown earlier that for different spacetimes,the Einstein field equations at the horizon can be expressed as the first law of black hole thermodynamics.Using the idea of foliation,we develop a simpler procedure toobtain such results.We considerγ=constant slices,for the Schwarzschild and Reissner-Nordstrom black hole spacetimes.The Einstein field equations for the induced 3-dimensional metrics of the hypersurfaces are expressed in thermodynamic quantities under the virtual displacements of the hypersurfaces.As expected,it is found that the field equations of the induced metric corresponding to the horizon can be written as afirst law of black hole thermodynamics.It is to be mentioned here that our procedure is much easier,to obtain such results,as here one has to essentially deal with(n-1)-dimensional induced metric for an n-dimensional spacetime. | Azad A.Siddiqui Syed Muhammad Jawwad Riaz M.Akbar | 2011 | Chinese Physics Letters2011，28，5： | 0 |
| 3 | Paediatric-appropriate facilities in emergencydepartments of community hospitals in Ontario:A cross-sectional study显示文摘BACKGROUND: We assessed whether the paediatric-appropriate facilities were available at Emergency Departments(ED) in community hospitals in a Canadian province.METHODS: We conducted a cross-sectional survey of EDs in community hospitals in Ontario, Canada that had inpatient paediatric facilities and a neonatal intensive care unit. Key informants were ED chiefs, clinical educators, or managers. The survey included questions about paediatric facilities related to environment, triage, training, and staff in EDs.RESULTS: Of 52 hospitals, 69%(n=36) responded to our survey. Of them, 14% EDs(n=5) had some separated spaces available for paediatric patients. About 53%(n=19) of EDs lacked children activities, e.g., toys. Only 11%(n=4) EDs were using paediatric triage scales and 42%(n=15) had a designated paediatric resuscitation bay. Only half of the ED(n=18) required from their staff to update paediatric life support training. Only 31%(n=11) had a designated liaison paediatrician for the ED. Paediatric social worker was present in only 8%(n=3) of EDs in community hospitals.CONCLUSION: Most of the Ontario community hospital EDs included in this survey had inadequate facilities for paediatric patients such as specific waiting and treatment areas. | Muhammad Akhter Hamid Sohaib Siddiqui Jabeen Fayyaz Ayesha Chandna Aliya Ariz Joe Butchey Elancheliyan Ambalavanar Niraj Mistry Aftab Muhammad Azad Junaid A. Bhatti Dennis Scolnik | 2017 | World Journal of Emergency Medicine2017，8，4： | 0 |
| 4 | Deciphering the role of rGO in tuning dielectric properties of Er_(2)O_(3)/ZnO/rGO nanocomposites synthesized via facile approach显示文摘The present research investigated the effect of reduced graphene oxide(rGO) integration with assynthesized Er_(2)O_(3)/ZnO nanocomposites on dielectric properties. The samples were characterized by Xray diffraction(XRD), Fourier transform infrared spectroscopy(FTIR), scanning electron microscopy(SEM), diffuse reflectance spectroscopy(DRS), and energy dispersive spectroscopy(EDS). Complex impedance spectroscopy was utilized to characterize dielectric relaxation phenomena in Er_(2)O_(3)/ZnO and Er_(2)O_(3)/ZnO/rGO nanocomposites. All the samples exhibit single relaxation phenomena which are ascribed to grain boundaries. The addition of rGO to Er_(2)O_(3)/ZnO nanocomposite results in the enhancement of dielectric response due to increased local field intensity caused by the formation of conductinginsulating interfaces. Furthermore, the AC conductivity of the Er_(2)O_(3)/ZnO/rGO is increased at higher frequencies due to the presence of free charge carriers in rGO. At higher frequencies, Er_(2)O_(3)/ZnO/rGO nanocomposite with increased concentration of ZnO exhibits a more stable dielectric constant with extremely low dielectric loss. Hence, the inclusion of rGO in Er_(2)O_(3)/ZnO nanocomposites makes it a novel prospective candidate in the field of energy storage devices. | Saiqa Hafeez Saima Perveen Muhammad Zarrar Khan Awab Hashmi Fahad Azad | 2024 | Journal of Rare Earths2024，42，3： | 0 |
| 5 | Analytical Treatment of an Oldroyd 8-constant Fluid Between Coaxial Cylinders with Variable Viscosity显示文摘The flow of an Oldroyd 8-constant fluid between coaxial cylinders with variable viscosity is considered.The heat transfer analysis is also taken into account.An analytical solution of the non-linear problem is obtained usinghomotopy analysis method.The behavior of pertinent parameters is analyzed and depicted through graphs. | Muhammad Yousaf Malik Azad Hussain Sohail Nadeem | 2011 | Communications in Theoretical Physics2011，56，11： | 0 |
| 6 | A Health Monitoring System Using IoT-Based Android Mobile Application显示文摘Numerous types of research on healthcare monitoring systems have been conducted for calculating heart rate,ECG,nasal/oral airflow,temperature,light sensor,and fall detection sensor.Different researchers have done different work in the field of health monitoring with sensor networks.Different researchers used built-in apps,such as some used a small number of parameters,while some other studies used more than one microcontroller and used senders and receivers among the microcontrollers to communicate,and outdated tools for study development.While no efficient,cheap,and updated work is proposed in the field of sensor-based health monitoring systems.Therefore,this study developed an android-based mobile system that can remotely monitor electrocardiograms(ECGs),pulse oximetry,heart rate,and body temperature.The microcontroller’s Wi-Fi device is used to manage wireless data transport.The findings of the patient are saved on the Firebase server for further usage in the mobile app.The performance of the proposed device is tested on ten numbers of different patients age-wise in terms of beats per minute(BPM),ECG,Temperature,and SpO2.This system uses temperature,pulse,ECG,blood pressure,and eye blink sensors.This device makes the usage of a tiny pulse sensor that has been designed to provide an accurate and optimal readout of the pulse rate and a temperature sensor is also included.With the help of an MCU,our system measures the pulse rate in beats per minute(bpm),blood oxygen level temperature measurements,and ECG readings and communicates this information to the Firebase server.To check the performance of the proposed system first,the BPM parameter was checked on the cardiac monitor.Then,the proposed model is tested on different patients age-wise.The simulation result shows that the BPM reading is not much different than the BPM of the cardiac monitor.According to the simulation findings,the proposed model achieved the best performance as compared to commercially available devices. | Madallah Alruwaili Muhammad Hameed Siddiqi Kamran Farid Muhammad Azad Saad Alanazi Asfandyar Khan Abdullah Khan | 2023 | Computer Systems Science & Engineering2023，47，11： | 0 |
| 7 | 太阳能集热器强化传热技术的局限性与挑战显示文摘目前,太阳能集热器在可再生能源领域发挥着至关重要的作用,这在核心能源专家和研究界得到了广泛的认可。由于这种太阳能收集技术的高能量转换率,迫切需要评价方法,以期改善传热过程。前期研究人员主要致力于工作流体的增强上,而忽略了其他同样有助于增强太阳能集热器传热过程的技术,这使得其他方向的研究逐渐过时了。本研究的主要目的是提供最新的进展和方法,以加强太阳能集热器的传热过程的最新概述。研究了传统技术和创新技术,探讨了它们在提高热性能和整体系统效率方面的有效性。对太阳能集热器强化传热技术的最新研究进行了全面的文献综述。确定了主要挑战、知识差距和局限性,并推荐了潜在的未来研究方案。这篇全面的综述将作为研究人员和主要能源参与者的指南,为太阳能集热器领域提供参考的研究方向。 | Lukman Ahmed OMEIZA Muhammad ABID Yathavan SUBRAMANIAN Anitha DHANASEKARAN MdMosfiqur RAHMAN Saifullah Abu BAKAR Kateryna KOZAK Ukashat MAMUDU Abul Kalam AZAD | 2023 | Journal of Central South University2023，30，11： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员