1,782 research outputs found
Aspects of Mir Sher Ali Afsos’s Poetry
No full textMir sher Ali Afsos was a successful ghazal poet of his era. He has tried almost all the popular genres of speech. The poetry of Mir Sher Ali Afsos seems to be impressive in the color of despair apart from love, but this color is traditional. A study of Kuliat-e-Afsos reveals that he has used all the essentials of art to enhance the reader's quest for techniques, similes and metaphors in his words, as well as the craft of poetry. Afsos has also used beautiful arts in his speech, all these accessories create a charming beauty in the poetry which makes the poet beautiful. His poetry is romantic. In this article effort is made to analyse his poetry
An intelligent off-line MPPT technique for PV applications
No full textHarnessing energy from the abundant and free sunlight is now a days a hot topic among the research community. The availability of cheap solar modules has made it possible to harvest solar energy with better efficiency. The nature of solar modules is non linear and therefore the process of impedance matching is essential. The proper impedance matching ensures extraction of the maximum power from solar PV module. Several algorithms are reported in literature that are used to operate the DC-DC converter around Maximum Power Point (MPP). Among those algorithms off-line techniques are considered the easiest to implement. However, intermittent measurement of Short Circuit Current (SCC)/Open Circuit Voltage (OCV) results in the power loss. The decision about the measurement of SCC/OCV is often based on the irradiance/temperature sensors. In this paper we propose a modified algorithm for off-line MPPT techniques. The proposed technique decides intelligently about the measurement of SCC/OCV. The technique is modeled and simulated in Matlab/Simulink and the results shows satisfactory performance against test conditions
SYED SHER ALI BACHA: A PAKHTUN MARXIST LEADER, KHYBER PAKHTUNKHWA
No full textSyed Sher Ali Bacha (1935-98) is one of the Pakhtun Marxist politicians who played a leading role in the leftist politics in then NWFP (Khyber Pakhtunkhwa). He is known for his scholastic approach toward solution of Pakhtun problems because he drew insights from the Marxist philosophy of dialectical and historical materialism while approaching social, economic, and political issues of Pakhtun. He had resurrected the tradition of study circles in Pakhtun society. He was also the founding member and first General Secretary of two leftist political parties; Mazdoor Kisan Party (MKP) and Pakhtunkhwa Mili Awami Party (PMAP). Thus, his entire political career spanning over a four-decades, was devoted to left wing politics and peasant movements in Khyber Pakhtunkhwa, which is explicit in his long struggle in leftist political parties like, National Awami Party (NAP), MKP, and in later part in PMAP. This research paper focuses on his writings on class difference and social inequality, as well as on his vision of creating unity among Pakhtun belt. The Communist Party of India (CPI), which was the first leftist political party of undivided India and was established in Soviet Tashkent in 1920s by émigré revolutionaries, had also notable figure like Muhammad Shafiq (Secretary of CPI), and other émigré Muhajirin from the then NWFP.https://khairulumma.com/index.php/about/article/view/7
Spatial variability of soil micronutrients (Cu, Fe, Zn & Mn) and population dynamic of mycoflora in potato fields of CKNP region Gilgit-Baltistan Pakistan
No full textEfficient MPP Tracking of Photovoltaic (PV) Array Through Modified Boost Converter With Simple SMC Voltage Regulator
No full textSliding mode controller (SMC) based MPPT systems are less effective due to input LCin tank of boost converter. The LCin tank at PV node creates the sinusoidal waves of V-pv/I-pv, due to which phase angle (phi) occurs between triangular wave of inductor current (I-L) and sinusoidal V-pv. This creates the adverse effects on SMC operation. In this research work, a series capacitor based boost converter is developed without using the parallel LCin circuit. Consequently, V-pv/I-pv becomes triangular (pure/semi) and phi factor between V-pv and triangular I-L is minimized. The proposed setup ensures a high frequency operation and better voltage regulation of SMC. Through theoretical, mathematical and experimental studies, the response of PV source with conventional converter and proposed converter have been analyzed. Finally, extensive simulation studies and experimental evidences are presented, which highlights the superior dynamic and steady efficiencies of PV system with proposed topology as opposed to conventional converter and other recently developed MPPT systems
A two stage hybrid maximum power point tracking technique for photovoltaic applications
No full textPhotovoltaic (PV) systems are widely used now a days for coping the growing energy demands all across the globe. The non-linear behavior of the characteristic curve of solar module requires special arrangement to harvest maximum amount of power. To track the Maximum Power Point (MPP) across the non linear IV curve of PV module, techniques are used in addition to the power electronic circuit and are called Maximum Power Point Tacking (MPPT). Various methods of MPPT exists in literature, each bearing its own pros and cons. In this paper we presents a novel technique to improve the performance of conventional Perturb and Observe (P&O) algorithm of MPPT. Our technique removes the drawbacks of P&O under rapidly changing environmental conditions. It also executes less power oscillations under steady state conditions. The algorithm is a hybrid of Fractional Short Circuit current (FSCC) and P&O algorithms. The system takes the advantage of rapid tracking near to MPP using the FSCC and then carry on to track the exact MPP using the traditional P&O technique. The technique is verified through simulation using Matlab/SIMULIN
Exploring Syed Sher Ali Bacha\u27s Impact on Politics and Progressive Literature as Marxist Leader, Writer, and Poet in Khyber Pakhtunkhwa
No full textSyed Sher Ali Bacha (1935-98) is one of the Pakhtun Marxist politicians who played a leading role in the leftist politics in the then NWFP (Khyber Pakhtunkhwa). He is known for his scholastic approach toward solution of Pakhtun problems because he drew insights from the Marxist philosophy of dialectical and historical materialism while approaching social, economic, and political issues of Pakhtun. He had resurrected the tradition of study circles in Pakhtun society. He was also the founding member and first General Secretary of two leftist political parties; Mazdoor Kisan Party (MKP) and Pakhtunkhwa Mili Awami Party (PMAP). Thus, his entire political career spanning over a four-decades, was devoted to left wing politics and peasant movements in Khyber Pakhtunkhwa, which is explicit in his long struggle in leftist political parties like, National Awami Party (NAP), MKP, and in later part in PMAP. This research paper focuses on his writings on class difference and social inequality, as well as on his vision of creating unity among Pakhtun belt. The Communist Party of India (CPI), which was the first leftist political party of undivided India and was established in Soviet Tashkent in 1920s by émigré revolutionaries, had also notable figure like Muhammad Shafiq (Secretary of CPI), and other émigré Muhajirin from the then NWFP
A new irradiance sensorless hybrid MPPT technique for photovoltaic power plants
No full textA hybrid Maximum Power Point Tracking (MPPT) method without using an irradiance sensor is proposed in this paper. The hybrid MPPT method is a combination of conventional Perturb and Observe (P&O) and Fractional Short Circuit Current (FSCC) MPPT technique. The proposed hybrid MPPT decides intelligently about the initial operating point of P&O by using the FSCC MPPT method. This method requires no sensor for irradiation measurement because it detects intelligently about the change in irradiance. Therefore, under dynamic weather conditions the decision about measuring the initial operating point of P&O is intelligent. After finding the initial operating point the system shifts to the conventional P&O method and starts to perturb with a small perturbation size. The use of small perturbation steps enables the system to work with less power oscillations around the Maximum Power Point (MPP), while the use of FSCC helps in rapid tracking of MPP especially under the varying environmental conditions. Thus, the proposed method is fast in tracking the MPP with less power oscillations and hence better performance in terms of energy harvesting when compared with the conventional P&O technique. Impedance matching between solar panel and load is achieved using a DC-DC boost converter and the proposed method is simulated in MATLAB/SIMULINK environment. The system is simulated against the steady and dynamic weather conditions. The results shows that under steady weather condition the proposed method harvests 5% extra energy as compared with the conventional P&O. For dynamic weather conditions the proposed method harness an additional 3.5% energy when compared with the P&O method, which makes it very promisin
ROBOTIC REPLICATION OF LIVING THINGS AND IMPLICATIONS FOR WARFARE
No full textThe paper discusses nature-inspired robotic replications, their potential military applications, implications for warfare, and the perspective of International Humanitarian Law (IHL). Historically, animals have been used in war, helping to turn the tide of battles and the fortunes of many combat soldiers. However, in modern times, there is a growing interest in replicating characteristics of natural creatures in AI-enabled robotics for military purposes. Key mechanics of natural systems, such as manoeuvrability, agility, and aerodynamics, as well as intelligence factors like coordination, swarming, task sharing, and cooperation, have inspired the development of military robots. These robots, equipped with the instinct of survivability alongside features such as self-organization, self-adaptability, and self-learning, are well-suited to navigate the battlefield\u27s challenges and engage in warfare despite the inherent unpredictability and chaos involved. By leveraging the evolutionary advantages of nature, military robots can enhance their effectiveness through biomimicry, as they tend to be more adaptable to unforeseen scenarios. This increased adaptability improves their ability to learn and evolve in response to environmental changes, thereby significantly enhancing mission outcomes. The findings of this research show that, in addition to presenting significant moral, ethical, and legal challenges, rapid advancements lead to the militarization of nature and significantly alter the nature of warfare. The study also provides recommendations for an international consensus on legally binding instruments.
Bibliography Entry
Ullah, Atta and Sher Ali Kakar. 2025. "Robotic Replication of Living Things and Implications for Warfare." Margalla Papers 29 (1): 80-95
REARING EFFICIENCY, FORAGING BEHAVIOR AND DEARTH PERIOD MANAGEMENT OF HONEY BEE (Apis mellifera)
No full textSher-e-Bangla Agricultural University Research System (SAURES
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