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| 1 | Advantages of white LED lamps and new detector technology in photometry显示文摘Light emitting diode(LED)lighting is becoming more and more popular,as incandescent lamps are being phased out globally.LEDs have several advantages over incandescent lamps,including energy efficiency,robustness,long lifetime,and good temporal stability.The three latter features make LEDs attractive candidates as new photometric standards.Because the spectra of white LEDs are limited to the visible wavelength range,a novel method for the realization of photometric units based on the predictable quantum efficient detector(PQED)can be utilized.The method eliminates the need of photometric filters that are traditionally used in photometry,and instead relies on carrying out the photometric weighting numerically based on the measured relative spectrum of the source.The PQED-based realization simplifies the traceability chain of photometric measurements significantly as compared with the traditional filter-based method.The measured illuminance values of a white LED deviate by only 0.03%when determined by the new and the traditional methods.The new PQED method has significantly lower expanded uncertainty of 0.26%(k=52)as compared with that of the traditional filter-based method of 0.42%(k=52).Furthermore,when filtered photometers that measure LED lighting are calibrated using LED lamps as calibration sources instead of incandescent lamps,a significant decrease in the uncertainty related to the spectral mismatch correction can be obtained.The maximum spectral mismatch errors of LED measurements decreased on average by a factor of 3 when switching from an incandescent lamp to an LED calibration source. | Tomi Pulli Timo Donsberg Tuomas Poikonen Farshid Manoocheri Petri Karha Erkki Ikonen | 2015 | Light(Science & Applications)2015，4，1： | 8 |
| 2 | Prognostic effect of amenorrhea and elevated serum gonadotropin levels induced by adjuvant chemotherapy in premenopausal node-positive breast cancer patients显示文摘 | POIKONEN P SAARTO T ELOMAA I | | 0，，01： | 1 |
| 3 | Prognostic effect of amenorrhoea and elevated serum gonadotropin levels induced by adjuvant chemotherapy in premenopausal node-positive breast cancer patients显示文摘 | P Poikonen T Saarto I Elomaa H Joensuu C Blomqvist | 2000 | European Journal of Cancer2000，，1： | 1 |
| 4 | Nosocomial candidaemia in a Finnish tertiary care centre during 1987-2004显示文摘 | Poikonen E Lyytikainen O Anttila V J | 2009 | Scand J Infect Dis2009，1，： | 1 |
| 5 | Selenium and immune functions in humans 显示文摘 | Arvilommi H Poikonen K Jokinen I | 1983 | Infect Immun1983，41，1： | 1 |
| 6 | Candidemia in Finland,1995-1999 显示文摘 | Poikonen E Lyytikainen O Anttila VJ | 2003 | Emerg Infect Dis2003，9，8： | 1 |
| 7 | Nosocomial candidaemia in a Finnish tertiary care centre during 1987-2004显示文摘 | Poikonen E Lyytikainen O Anttila V J | 2009 | Scand J Infect Dis2009，1，： | 1 |
| 8 | Aggregated renewal Markov processes with applications in simulating mobile broadcast systems 显示文摘 | Jussi Poikonen Jarkko Paavola and Valery Ipatov | 2009 | IEEE Transactions on Vehicular Technology2009，58，1： | 1 |
| 9 | EXO1 variants occur commonly in normal population 显示文摘 | Jagmohan -Changur S Poikonen T Vilkki S | 2003 | Cancer Research2003，63，1： | 1 |
| 10 | Multifunctional integrating sphere setup for luminous flux measurements of light emitting diodes显示文摘 | POIKONEN T MANNIEN P KARHA P | 2010 | Review of Scientific Instruments2010，81，： | 1 |
| 11 | Leucocyte nadir as a marker for chemotherapy efficacy in node-positive breast cancer treated with adjuvant CMF显示文摘 | Poikonen P Saarto T LundinJ | 1999 | Br J Cancer1999，80，11： | 1 |
| 12 | Multifunctional integrating sphere setup for luminous flux measurements of light emitting diodes显示文摘 | Poikonen T Manninen P Karha P | | 0，，： | 1 |
| 13 | Cyclin A as a marker for prognosis and chemotherapy response in ad-vanced breast cancer显示文摘 | Poikonen P Sj?str?m J Blomqvist C | | 0，，5： | 1 |
| 14 | Secular trend in candidemia and the use of fluconazole in Finland,2004-2007显示文摘 | Poikonen E Lyytikainen O Anttila VJ | 2010 | BMC Infect Dis2010，，10： | 1 |
| 15 | Effects of CD14,TLR2,TLR4,LPB,and IL-6 gene polymorphisms on Chlamydia pneumoniaegrowth in human macrophages in vitro显示文摘 | POIKONEN K LAJUNEN T SILVENNOINENKASSINEN S | 2009 | Scand J Immunol2009，70，： | 1 |
| 16 | Selenium and immune functions in humans显示文摘 | H Arvilommi K Poikonen I Jokinen | 1983 | Infect Immun1983，41，1： | 1 |
| 17 | Secular trend in eandidemia and the use of fluconazole in Finland, 2004-2007 显示文摘 | Poikonen E Lyytikainen O Anttila V J | 2010 | BMC Infect Dis2010，10，： | 1 |
| 18 | Seculartrendincandi-demiaandtheuseoffluconazoleinFinland,2004-2007显示文摘 | PoikonenE Lyytik惫inenO AnttilaVJ | | 0，，： | 1 |
| 19 | Selenium and immune functions in humans 显示文摘 | ARVILOMMI H POIKONEN K JOKINEN I | 1983 | Infection and Immunity1983，41，1： | 1 |
| 20 | Secular trend in can- didemia and the use of flueonazole in Finland, 2004-2007 显示文摘 | Poikonen E Lyytikainen O Anttila V J | 2010 | BMC Infect Dis2010，10，： | 1 |
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