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حکیم محمد اسمٰعیل

حکیم محمداسماعیل
حکیم محمداسماعیل صاحب کے انتقال کی خبرسے بڑاصدمہ ہوا،مرحوم نے بڑی تکالیف اٹھائیں،اﷲ تعالیٰ مغفرت فرمائے۔ [اکتوبر ۱۹۶۲ء]

 

The Effects of Global Warming: The Case Study of Karachi’s Heat Waves & Its Implication

Our home Earth a beautiful place to live, Allah created earth for his lovable creature but human being is destroying the beautiful earth for his own comfort. And now we're experiencing the consequences, such as rising temperatures. The interaction of rising global temperatures over the nation's land and oceans is known as "Intercontinental weather evolution." Evolution in world’s weather is an outcome of worldwide increase in temperature, and it includes greater temperatures, moisture, precipitation, condensation, and weather systems – along with variations in the occurrence and severity of these variables. It also threatens life on this planet physically and emotional.  Climate change destroying city Karachi too. In 2015 Karachi faced deadly heat wave any around 1200 died. Pakistan’s government take action to control global warming but it's not enough caused a city over 14.91 million (2017), it will need more attention and take action to control the situation of global warming. We can also control consequences of global warming by adopting and reducing few things from our Life otherwise our future will be dark as a black hole in space.

Sonophotocatalytic Degradation of Organic Pollutants in Aqueous Solutions under Visible Light Using Metal Impregnated Photocatalysts

The visible light induced semiconductor photocatalyst Ni impregnated ZnO was prepared by wet impregnation method. Impregnation of Ni on ZnO shifts the band gap from UV to Visible region. The present study involves the sonophotocatalytic degradation of acid violet 49 and acid blue 45 in the presence of photocatalyst Ni-ZnO under the irradiation of visible light. Degradation efficiency of sonophotocatalysis was higher than sonolysis, sonocatalysis, photolysis and photocatalysis. Photocatalyst was characterized by scanning electron microscopy (SEM), energy dispersive X-ray analysis (EDX) and X-ray diffraction (XRD). Effect of different operational parameters such as pH, catalyst dosage, different oxidising agents, initial dye concentration, different scavengers, catalyst re-used ability, catalyst settling time and catalytic poisoning. Addition of enhancers increases the degradation efficiency and scavengers decrease the degradation. We found that Acid violet 49 and acid blue 45 degraded 100% at pH 10 in 20 minutes. Catalyst re-usability was checked up to five cycle and it gives a fruitful results. Kinetics study was also carried out and it was found that both of the dyes undergo pseudo first order kinetic model. All the experiments indicate that the sonophotocatalytic degradation method in the presence of Ni-ZnO was an advisable choice for the treatment of textile effluents.
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مطالعہ یہودیت
مطالعہ یہودیت

Written for students who likely have either no knowledge of Judaism or else come to the subject with preconceptions highly colored by political and religious polemics, this book offers a comprehensive introduction to the Jewish tradition from religious, historical, and cultural perspectives.

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