nouman ahmed | National University of Sciences & Technology (NUST) (original) (raw)

Papers by nouman ahmed

Implanted electrodes at the scalp or beneath skin provides an efficient substitute to wired elect... more Implanted electrodes at the scalp or beneath skin provides an efficient substitute to wired electrodes in order to measure frequency and seizure location for patients suffering from severe epilepsy. A efficient wireless communication system can deliver an improved set of measurement results and can assist with ease for patients. This work aims at implementation of efficient protocol to achieve wireless data transmission and to gain a digital control over communication between the medical sensor implant and the EEG monitoring device. The system is based on inductive powering and inductive coupling for implantable devices. The inductive link uses mutual inductance of two coupled coils of RFID tag and an external reader and it consumes less electrical power than conventional radio systems which also removes the need of batteries. The operation to transmit data through wireless inductive link communication comprise transmitting RFID reader signals, receiving RFID response signals and de...

This book looks at the brand repositioning. How it can be implemented and why we need to repositi... more This book looks at the brand repositioning. How it can be implemented and why we need to reposition the brand? Literature suggests that customer form an image through a fusion of all signals released by the brand. Brands try to encourage customers to perceive the attributes they seek as being strongly associated with the brand. The brand has definitely gone much further from its original concept of identification because of today’s highly competitive world where only the best can survive hence customer perception is very critical. Positioning is not about the product, but what they buyer thinks about the product or organisation. Companies need to reposition its brand when it starts struggling to survive in the market. In this book Skoda motors case history has been used. Research reflected that how Skoda brand improve their market growth and reposition itself from being unreliable to durable cars manufacturer image and the factors involved in their success

JPMA. The Journal of the Pakistan Medical Association, 2016

Germ Cell Tumours (GCTs) are rare tumours. Generally 80% are benign and 20% malignant with a bimo... more Germ Cell Tumours (GCTs) are rare tumours. Generally 80% are benign and 20% malignant with a bimodal age distribution. The retrospective study was conducted at Shaukat Khanum Cancer Hospital, Lahore, Pakistan, and comprised all paediatric patients below 18 years of age who received treatment for histology-proven GCT from 2006 to 2014. Of the 207 patients, 98(42.3%) were males and 109(52.7%) were females. The most common GCT was yolk sac tumour in 90(43.5%) children followed by mixed GCT in 40(19.3%) and dysgerminoma in 34(16.4%). Gonads were most commonly involved in 165(79.7%) patients with metastasis in 24(11.6%) at presentation and recurrence in 26(12.5%) patients. Overall, 133(64.3%) patients are well and followed up at regular intervals and 55(26.5%) have been lost to follow-up with an expected overall 5-year median survival of 45%. Despite the distinct clinical profile of paediatric GCT, survival can be improved by early diagnosis, regimented treatment according to set guideli...

Fire fighting started in Pakistan electrical generation industry in Mid 2000s. There was a huge d... more Fire fighting started in Pakistan electrical generation industry in Mid 2000s. There was a huge difference between supply and demand of Pakistan electrical power generation at that time. Government lacking resources to meet consumer’s electrical energy demands open room for independent power producers (IPPs). Thirty one out of thirty six IPPs operating in the country till date are generating electricity using thermal power technologies. These power plants generate a lot of environmental pollution. This led toward serious cooperate social responsibility (CSR) issues. The connection between CSR and the value of a business has inquired upon, but a formidable difference between researches is still present if we take into account the mutual relation between innovation and CSR. This article inquires its association with collective innovation and stable production in one collective model by using the study of retrogression on compiled data that has arranged from different companies in Paki...

Purpose: This research paper aims to study the standing of learning of Islamic Law in contemporar... more Purpose: This research paper aims to study the standing of learning of Islamic Law in contemporary universities. The present study highlights the significance of Islamic Law learning to the legal practitioners (Bar) and legal academicians in general and to the judges (Bench) in particular. This paper endeavors to conduct a case study of learning of Islamic law in contemporary universities in Muslim and Non-Muslim jurisdictions. Methodology: For the purpose of this research paper, two universities have been selected where departments of Islamic law learning are established, i.e., Faculty of Sharīʻah & Law of International Islamic University, Islamabad and Harvard Islamic Legal Studies Program of Harvard law School. This study explores that how far the above-mentioned institutions in various jurisdictions have been successful in imparting Islamic Law education among their law students. It follows discussion on the relevancy of Islamic law learning and its understanding in the solution...

Pakistan BioMedical Journal, 2021

Ascertain validity of a questionnaire which measures the impact of abolishment of PM&DC on Basic ... more Ascertain validity of a questionnaire which measures the impact of abolishment of PM&DC on Basic Medical & Dental Sciences Faculty Career Path of a Federally Chartered Public Sector Medical University. Methods: Cross sectional study conducted on a pre-defined population at a given point in time. Study setting was Army Medical College, Rawalpindi. Target population for pilot testing was basic sciences faculty of Army Medical College, Rawalpindi. 12 items questionnaire was designed using Likert scale with 5 options response set. Content validity was assured by expert opinion.Results: Inter item correlation represented by Cronbach’s alpha was p=0.839.Conclusion: The 12 item questionnaire appropriately measures the attitudes and beliefs of basic sciences faculty regarding their career path after abolishment of PM&DC

2018 16th IEEE International New Circuits and Systems Conference (NEWCAS), Jun 1, 2018

This paper describes a digital-friendly passives-less time delay cell that generates programmable... more This paper describes a digital-friendly passives-less time delay cell that generates programmable phase-shifts for downconverting front-end in LO-based beamsteering receiver. Cell design supports 1.5-6.5GHz broadband receiver operation and cell layout occupies an area of only 15x16.5µm 2 including power supply rails and control logic. Simulated in 28nm CMOS technology, delay cell exhibits 6 distinct delay values {3, 3.5, 17, 19, 24, 43}ps consuming at most 220µW@1V.

IEEE Transactions on Microwave Theory and Techniques, 2020

In this paper we present a 4-element Vivaldi antenna array and beamsteering receiver IC for fifth... more In this paper we present a 4-element Vivaldi antenna array and beamsteering receiver IC for fifth-generation mobile network (5G) New Radio (NR). The implemented receiver utilizes a delay-based local-oscillator (LO) phase-shift technique for accurate beamsteering, and it exhibits 1 to 2.4 degree phase tuning capability for 2-5 GHz bandwidth accordingly. On-chip delay measurement is performed with pilot signal generation and delay estimation capable of 2 ps accuracy. The IC is fabricated on 28 nm CMOS technology, it occupies an area of 1.4 × 1.4 mm 2 including bonding pads and consumes 22.8 mW at 2 GHz for single receiver path operation. The receiver demonstrates wideband over-the-air reception with the prototype antennas.

Microprocessors and Microsystems, 2019

This paper describes the hardware implementation of a custom communication protocol tailored for ... more This paper describes the hardware implementation of a custom communication protocol tailored for low power telemetry data streaming over an inductive link. An efficient transceiver design is achieved by adapting only the essential physical layer features of a typical RFID baseband processor and optimizing the flow control logic for continuous and reliable data transfer. For the external near-field reader, we provide a logical model for receiver operation and suggest a simple forward error correction (FEC) mechanism. The benefit of FEC in the context of developed communication system is demonstrated by simulations, and projections of design scalability are also presented. The proposed communication system was implemented in 28nm CMOS process. Place-and-route (PNR) results occupy only 0.0048 mm 2 of core area, and the transient simulations show a power consumption of 306 nW at 0.5 V supply and a master clock of 845.7 kHz. The implementation provides an uplink rate of 12 kbit/s, sufficient for reliable transmission of a 1-channel 1 kS/s 12-bit sample recording.

Asian Pacific journal of cancer prevention : APJCP, 2014

Testicular cancer management is considered a marvel of modern science with excellent treatment re... more Testicular cancer management is considered a marvel of modern science with excellent treatment results. Pakistan has a distinct ethnic variation and geographic distribution but data regarding clinical presentation of testicular tumors and their management is under reported. The objective of this study was to determine clinical profile, treatment modalities and survival outcome of testicular tumors in the Pakistani population. A retrospective review of patients who received treatment for testicular cancer at Shaukat Khanum Cancer Hospital from January 2009 to December 2012 was performed. Patient demographics, clinical features at presentation and treatment modalities were assessed. For categorical variables chi square test was used. Survival was calculated using Kaplan Meier survival curves and Log rank test was employed to determine significance. The most common tumor was mixed germ cell tumor in 49% patients. For all tumor variants except seminoma, stage III was the most common cli...