scholarly journals ability of water hyacinth, heartshape false pickerelweedand water lettuce as chlorine phitoremediation in water

2020 ◽  
Vol 3 (1) ◽  
pp. 30-37
Author(s):  
Hariyadi Hariyadi

This study aims to determine the ability of water hyacinth, heartshape false pickerelweed, and water lettuce as phytoremediation of chlorine in water; to determine the ability of those plants, as well as to accumulate and translocate chlorine in water, bioconcentration factor (BCF), and translocation factor (TF). The research method was used, namely the experimental design method to find the effect of certain treatments on controlled conditions. The results of the study concluded that water hyacinth (Eicchorniacrassipes (Mart.) Solms), heart shape false pickerelweed (Monochoria vaginalis (Burm.F) Presi), and water lettuce (Pistia stratiotes L.) have the ability as phytoremediating agents for chlorine in water, with absorption respectively 79.58% for water hyacinth, 73.60% heartshape false pickerelweed, and 87.39% for water lettuce. These plantsare hyperaccumulators if the absorption / accumulation rate is at least 1000 ppm of contaminants. Thus, the three types of plants (Eichhorniacrassipes, Monochoria vaginalis, and Pistia stratiotes) can be categorized as hyperaccumulator plants for chlorine because their accumulation levels are respectively 1492.35 ppm (E.crassipes), 1374 ppm (M. vaginalis), and 1631.28 ppm (P. stratiotes).

2012 ◽  
Vol 30 (1) ◽  
pp. 1-9 ◽  
Author(s):  
Youn Jung Jung ◽  
Nguyen Khoa Viet Truong ◽  
Sangmun Shin ◽  
Seong Hoon Jeong

2005 ◽  
Vol 42 (1) ◽  
pp. 90-98
Author(s):  
Hiroko Miyaji ◽  
Hirofumi Sakurai ◽  
Masayuki Kikawada ◽  
Katsuhiko Yamaguchi ◽  
Akihiro Kimura ◽  
...  

2014 ◽  
Vol 18 (5) ◽  
pp. 1714-1715
Author(s):  
Li-Li Wu ◽  
Ting-Ting Cheng ◽  
Chuan Xu ◽  
Ting Chen

The parameters of the dual slot die in an industrial melt blowing equipment are designed optimally using the orthogonal experimental design method. The air flow fields of different die parameters are simulated. Effects of the die parameters are analyzed using variance analysis. The results show that the inset distance and slot width have significant effects on the air flow field while effect of the slot angle is unremarkable.


KINESTETIK ◽  
2018 ◽  
Vol 2 (1) ◽  
pp. 75-80
Author(s):  
Yeyen Sari ◽  
Dian Pujianto ◽  
Bayu Insanistyo

AbstrakPenelitian ini bertujuan untuk mengetahui peningkatan senam lantai roll belakang setelah diberikan penerapan latihan menggunakan metode bermain pada siswa kelas VIII.6 SMP Negeri 4 Bengkulu. Metode penelitian yang digunakan dalam penelitian ini adalah metode pre-eksperimental designs dengan desain penelitian one-group pretest-posttest designs, yang dimana dalam melakukan penelitian menggunakan tes awal (pretest), memberikan perlakuan, dan melakukan tes akhir (posttest) pada sampel kelas VIII.6 yang dipilih secara purposive sampling dari keseluruhan populasinya kelas VIII. Hasil penelitian dari tes akhir diperoleh Rata-rata hasil belajar pada pretest 40.19 dan posttes 57.76 dengan persentase peningkatan 43.71%. Berdasarkan data uji t yang dilakukan maka didapatkan nilai  sebesar 6.66. dengan demikian nilai  = 6.66 lebih besar dari nilai  = 1.69, artinya terdapat pengaruh metode bermain terhadap hasil belajar senam lantai roll belakang pada siswa kelas VIII SMP Negeri 4 Bengkulu.Kata kunci : Metode Bermain, Senam Lantai , Roll Belakang.AbstractThis study aims to determine the increase of roll back floor gymnastics after being given the practice of using the method of playing on the students of class VIII.6 SMP Negeri 4 Bengkulu. The research method used in this research is pre-experimental design method with one-group pretest-posttest designs, which in conducting the research using pretest, giving treatment, and performing posttest test on class VIII sample 6. selected by purposive sampling of the overall population of class VIII. Result of research from final test obtained Average learning outcomes in pre test 40.19 and post test 57.76 with percentage increase 43.71%. Based on t test data that is done then obtained t_count value of 6.66. thus the value of t_hitung = 6.66 is greater than the value of t_table = 1.69, it means there is influence of play method on learning of backstroke roll gymnastics at grade VIII student of SMP Negeri 4 Bengkulu.Keywords: play method, roll floor, gymnastics    


2020 ◽  
Vol 3 (1) ◽  
pp. 48
Author(s):  
Muharidinsyah Muharidinsyah

Textbook is important for student as main media in learning Arabic and significant to teacher for teaching besides suitable method in order to achieve necessary result, is the textbooks, however, must be fit students’ level of capability and nahwu al-wadhih is one of effective textbooks for any students’ level since it offers practical study which goes along with istinbathiyah method. Thus the writer is interested in conduct research that concerns on application of nahwu al-wadhihin Darul Hikmah boarding school, and decided to entitle this research as “effectiveness in using nahwu al-wadhih and istinbathiyah method to improve students’ understanding in Arabic grammar”. The aim of this study is to reveal the effectiveness of using nahwu al-wadhih and istinbathiyah method in Darul Hikmah boarding school and to disclose students’ responses toward Arabic grammar using nahwu al-wadhih and istinbathiyah method in DarulHikmah boarding school. This research uses a quasi-experimental design method. Research instruments for this research are interview along with pre-test and post-test. Result of study indicates that using nahwu al-wadhih and istinbathiyah method is effective to improve students’ understanding in learning Arabic grammar in DarulHikmah and students’ responses in learning Arabic grammar using nahwu al-wadhih and istinbathiyah method in Darul Hikmah are enthusiastic and excited.


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