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Traditional Walsh technique is used to eliminate cross-talk in a array of radio telescope where achieving synchronization between modulator and demodulator without compromising sensitivity is a real challenge. The paper describes a novel approach named Walsh Delay Hunting (WDH) to synchronize independently running modulator and demodulator with no additional hardware. This approach is unique and can easily be implemented in any existing radio telescope with minimal changes, thus by putting Walsh modulator at telescope and demodulation can be done in digital back-end. The scheme greatly reduces antenna electronics and overhead of sending synchronizing Walsh start pulse back to center station and vice versa. The paper describes WDH method and its feasibility study for Giant Meterwave Radio Telescope (GMRT) along with test results. The modulator is a low cost CPLD-based module and demodulation is done in a Reconfigurable Open Architecture Computing Hardware (ROACH)-based digitizer and packetizer. The scheme requires noise injection facility before modulator, which GMRT has for antenna calibration.

This is a case of 18yrs old female having pustular eruptions on face treated with individualised homoeopathic medicine. When patient came for consultation, she was presented with pustular eruptions which are painful and leaves scar marks on recovery since last 3 years. Systematic case taking followed by repertorzsation of the totality of symptoms was done by Synthesis repertory using RADAR software in order to choose the individualized remedy, and a few medicines including Nat mur, and others were shortlisted. The patient responded well to the individualized homoeopathic treatment, i.e., Nat mur 200 in 3 doses with gradual and steady recovery. Abbreviations: Aetius of Amida (AOA), Acne of life (AOL), Hypertension (HTN)

This paper present a new design of comparator for flash ADC . The flash ADC is the fastest Application ADC that requires the high speed comparator. The new design consist of sense amplifier and SR Latch ,the combining configuration of design have the considerable stable output which helps in high speed and resolution. The use of SR symmetric latch makes stable output as compared to the conventional SR latch moreover the design has high resolution. This paper has been done in 180 nm and 90nm gpdk in CADENCE VIRTUOSO. For low power application. There are many issues in the design of the comparator, we will discuss those design issues in this paper.