Guinea Value Investments (GVI) is a corporation based in Wyoming, established in June 2024, with Jingshu Zhang as the principal owner. We strive to generate consistent alpha throughout economic cycles. We learn from the philosophy of water, balancing between diversification and. Guinea is currently positioned as one of the most promising emerging markets in West Africa. As. We serve financial institutions, high net-worth individuals, and family offices/trusts to safely compound their capital over time. GVI specializes in portfolio management services tailored to individual client goals, risk tolerance, and time horizons. The firm creates Investment Policy. Imposters might link to sites like BrokerCheck from phishing or similar scam websites, or through social media, trying to steal your personal information or your money. The adviser's REGISTRATION status is listed below.
[pdf] Although most people want to make measurement in units of dBm or Watts, an optical power meter is only capable of measuring either the current or the voltage generated by a photodetector. When interfacing with a photodiode, the quantity that must be measured is current. In fiber optics, lasers, sensors, and optical communication links, this measurement is central to confirming that signals are strong enough to perform reliably without overloading. Quantum efficiency is dependent on many factors, but in general if the energy of the photon, E = h v, is greater than the energy gap of the device, these photons will be absorbed very near the surface where the recombination rate is high and will contribute to the photocurrent.
[pdf] 
