國際中心/徐詩詠報導
烏俄衝突進入第二週,俄軍持續對烏克蘭進攻,讓烏國境內出現不少傷亡。戰亂中,多數烏克蘭民眾也紛紛收拾行囊逃離家園,根據聯合國統計,至今已經有150萬人逃離烏克蘭;對此,烏克蘭鄰國斯洛伐克內政部,5日在社群上公布案例,一名11歲烏克蘭男童僅帶護照、背包,獨自跨過半個烏克蘭「成功逃亡」,男童在入境後,工作人員也隨即提供協助。
斯洛伐克內政部在臉書指出,「這是今晚最大的英雄,一位11歲大的男孩,從烏克蘭跨境來到斯洛伐克,手上寫著電話號碼,帶著塑膠袋與互助,他隻身前來,因為父母必須留在烏克蘭」。
斯洛伐克內政部表示「志工發現後帶他到溫暖的地方,提供食物和飲料給他。孩子用他的笑容、無畏與值得成為真正英雄的決心,感動了所有人。感謝他手上號碼和護照中的一張紙,讓他能順利聯絡到親人,讓整個故事圓滿結束」。
Sort by:Select
The log-periodic antenna as known as LPDA is a wideband directional antenna that provides gain and directivity combined over a wide band of frequencies.
Both Log-Periodic Antennas and Yagi antennas are high gain directional antennas. The main difference between these antennas is that Log-Periodic Antennas support wider frequency bandwidths and are physically much larger than Yagi antennas.
The log-periodic dipole array typical VSWR is 2:1 and operates over a much wider bandwidth and will have a lower gain for an equivalent number of elements.
In terms of its specification, a typical log periodic antenna might provide between 3 and 6 dB gain over dipole for a bandwidth of 2:1 while retaining a VSWR level of better than 1.3:1. With this level of performance, it is ideal for many applications, although a log-periodic antenna will be much larger than a Yagi of an equivalent gain.
EMC/EMI pre-compliance test antenna.
Very high gain over the full frequency range.
Meets latest EMC standards up to 7GHz.
Suitable even for immunity measurements
更多民視新聞報導一、二戰與烏俄衝突藏恐怖巧合!神秘數字曝光軍援到了!美槍械公司將贈烏克蘭100萬發子彈俄選手公開「支持入侵」!身貼1標誌引公憤