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فرزند محمد سمیع صدیقی [شعبہء مالیات کے امین ]

شعبہ مالیات کے امین
افسوس ہے کہ ۱۴؍ ستمبر کو دارالعلوم ندوۃ العلماء کے شعبہ مالیات کے امین و معتمد، دنیوی زندگی کی امانت کو ادا کرنے کے بعد اپنے مالک حقیقی سے جاملے، وہ استاذ الاساتذہ محمد سمیع صدیقی مرحوم کے صاحبزادے تھے جن کا تعلق ندوے سے مکانی ہی نہیں روحانی بھی ہمیشہ رہا، وہ ندوہ اور خصوصاً مولانا سید ابوالحسن علی ندویؒ کے عاشقوں میں تھے اور خود ایک باکمال اہل قلم تھے، ایسے باکمال کا اٹھ جانا بڑا سانحہ ہے، اﷲتعالیٰ ان کے حسنات کو قبول فرما کر بلند درجات سے نوازے۔ ( عمیر الصدیق دریابادی ندوی ، ستمبر ۲۰۱۰ء)

 

دور جدید میں کرائے کی ماں (Surrogate Mothering) کا تصور اور اسلامی نقطہ نظر

Artificial insemination is a means of attaining pregnancy not involving sexual intercourse. A couple having trouble getting pregnant can benefit from the exact timing and placement of the sperm. It can overcome instances where a woman's immune system can reject her partner's sperm as invading molecules. In the case of an impotent male, donor sperm may be used. It is also a means for a woman to conceive when two women wish to parent a child, or a single woman does not have a male partner, when she does not want a male partner, or when a male partner's physical limitation impedes his ability to impregnate her by sexual intercourse. A relationship in which one woman bears and gives birth to a child for a person or a couple who then adopts or takes legal custody of the child; called Surrogate Motherhood. In surrogate motherhood, one woman acts as a surrogate, or replacement, mother for another woman, sometimes called the intended mother, who either cannot produce fertile eggs or cannot carry a pregnancy through to birth, or term. Surrogate mothering phenomena is prevailing all over the world now days especially in America and European countries. The first recognized surrogate mother arrangement was made in 1976. Surrogate mothering is also introducing in Islam in some extend but Islam has its own laws regarding each and every problem of life. This Article is a summary of all positive and negative aspects of said issue and a critical analysis of its implications according to the Islamic injunctions in modern era.

Development of Novel Base Bleed Composite Solid Propellant and Igniter for 155 Mm Artillery Projectile Vis-À-Vis Parametric Studies

Range extension is an essential and perpetual requirement for gun ammunition while no country in the world can afford to replace the gun system per se. Accordingly, it becomes all the more important to extend the gun range without changing its paraphernalia. When an artillery shell is fired, there are many forces acting on it which affect its range namely wave drag on warhead nose (30%), body drag due to spin and friction (20%) and base drag due to partial vacuum behind projectile (50%). There are many methods to extend the projectile range which may be related to the weapon or the projectile itself. Base bleed unit is one of the devices used to decrease base drag and, consequently, enhance the range. Base bleed decreases the base drag resulting due to vacuum behind the projectile by filling up the wake zone with hot gases to gain ambient pressure produced by combustion of composite propellant grain. The present work is an attempt to develop a novel ammonium perchlorate and hydroxyl-terminated polybutadiene (AP/HTPB) based composite solid propellant (CSP) for Base Bleed (BB) grain by a simplified method together with the development of zirconium and potassium perchlorate-based corresponding igniter for ignition of CSP grain. In order to accomplish the successful production of BB system, development of new CSP compositions together with igniter compositions commensurate with the ballistic and mechanical properties was conducted. In the present research work, efforts have been made to study various CSP compositions at lab scale for evaluation of ballistic parameters and high pressure Closed Vessel technique was employed for the first time to tune the ballistic properties of BB grain. The newly developed CSP and igniter compositions were studied for burning rate, pressure-time data, rate of change of pressure and heat of explosion and were found in fair agreement with existing data. The selected composition for BB grain was also characterized through different analytical techniques including Scanning Electron Microscopy (SEM), Differential Scanning Calorimeter (DSC) and Bomb Calorimeter to study its morphological and thermal cum kinetic parameters. The lab scale developed composition was then produced on pilot scale employing a horizontal twin sigma blade planetary kneading machine (50 litre v capacity). To produce BB grains of a specific geometry moulds were designed having inhibitors housed inside mould cavity.This enabled easy casting of CSP, curing and easy extraction of fully inhibited BB grain avoiding the machining and inhibitor application process. Selected igniter composition was filled in igniter cups by hydraulic press. All the safety precautions required during manufacture, filling and formulation of explosives have been ensured to avoid any untoward incident. Functional test of BB grain was done on static test bench and igniters were evaluated several times on igniter testing setup for ignition, flame study and burning time. The complete BB unit was test fired on static test bed. On confirmation of BB unit ignition and burning performance, these units were fixed with 155 mm artillery projectiles (Extended Range Base Bleed projectile ERBB). Modern 155 mm gun, M198 Howitzer, was used for dynamic trials of the complete ERBB projectiles for performance evaluation and consistency. Range enhancement to the tune of 30% in all trials was achieved which stamped the performance and success of BB grain composition and igniter, developed during the ibid studies. In a nutshell, the present research vis-à-vis the development of CSP composition with corresponding igniter composition for BB unit has provided a new insight in the range extension of existing guns. The successful test firing of the pilot scale lots has great potential for plant scale production besides providing useful data in the academic domain in the form of comprehensive work.
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