“The White Water”

Nature ◽  
1920 ◽  
Vol 104 (2622) ◽  
pp. 563-564
Author(s):  
J. STANLEY GARDINER
Keyword(s):  
White Water

An effective method for determining the retention and distribution of cellulose nanofibrils in paper handsheets by dye labeling

TAPPI Journal ◽  
2018 ◽  
Vol 17 (03) ◽  
pp. 157-164 ◽  
Author(s):  
Shengdan Wang ◽  
Wenhua Gao ◽  
Kefu Chen ◽  
Jinsong Zeng ◽  
Jun Xu ◽  
...  
Keyword(s):  
Correlation Coefficient ◽  
Congo Red ◽  
Kraft Pulp ◽  
Cellulose Nanofibrils ◽  
Standard Curve ◽  
Congo Red Dye ◽  
Mechanical Disintegration ◽  
Softwood Kraft Pulp ◽  
White Water ◽  
Red Dye

Cellulose nanofibrils (CNF) were prepared by cellulase in conjunction with mechanical disintegration from the bleached softwood kraft pulp and labelled by Congo red dye. The labelled CNF were used to investigate the retention and distribution of CNF in paper handsheets. The retention of the labelled CNF was obtained by measuring the absorbance of white water using an ultraviolet-visible spectrophotometer. The results showed that this method for measuring the retention was rapid, feasible, and sensitive, owing to the high correlation coefficient R2 (0.9993) of the standard curve. The labelled CNF showed even distribution in paper handsheets. The colorimetric values of paper handsheets were explored with a residual ink analyzer.

The Canoe and White Water

1977 ◽  
Author(s):  
C.E.S. Franks
Keyword(s):  
White Water

Chapter One: Permanent white water

2018 ◽  
pp. 1-8
Author(s):  
Roy Lilley
Keyword(s):  
White Water

scholarly journals Calcium fluxes in Hoplosternum littorale (tamoatá) exposed to different types of Amazonian waters

2009 ◽  
Vol 7 (3) ◽  
pp. 465-470 ◽  
Author(s):  
Bernardo Baldisserotto ◽  
Carlos Eduardo Copatti ◽  
Levy Carvalho Gomes ◽  
Edsandra Campos Chagas ◽  
Richard Philip Brinn ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Water Transfer ◽  
Well Water ◽  
Acidic Ph ◽  
Clear Water ◽  
Black Water ◽  
Neutral Ph ◽  
Different Types ◽  
White Water ◽  
Hoplosternum Littorale

Fishes that live in the Amazonian environment may be exposed to several kinds of waters: "black waters", containing high dissolved organic carbon and acidic pH, "white waters", with ten fold higher Ca2+ concentrations than black waters and neutral pH, and "clear waters", with two fold higher Ca2+ concentrations than black waters and also neutral pH. Therefore, the aim of the present study was to analyze Ca2+ fluxes in the facultative air-breather Hoplosternum littorale (tamoatá) exposed to different Amazonian waters. Fishes were acclimated in well water (similar to clear water) and later placed in individual chambers for Ca2+ fluxes measurements. After 4 h, water from the chambers was replaced by a different type of water. Transfer of tamoatás to ion-poor black or acidic black water resulted in net Ca2+ loss only in the first 2 h of experiment. However, transfer from black or acidic black water to white water led to only net Ca2+ influxes. The results obtained allowed us to conclude that transfer of tamoatás to ion-poor waters (black and acidic black water) led to transient net Ca2+ loss, while the amount of Ca2+ in the ion-rich white water seems adequate to prevent Ca2+ loss after transfer. Therefore, transfer of tamoatás between these Amazonian waters does not seem to result in serious Ca2+ disturbance.

scholarly journals Menggali Potensi Wisata Alam Untuk Kegiatan Sport Tourism Di Kabupaten Sleman Daerah Istimewa Yogyakarta

2021 ◽  
Vol 12 (2) ◽  
pp. 142-150
Author(s):  
Wisnu Hadi ◽  
Atun Yulianto
Keyword(s):  
Sport Tourism ◽  
Mountain Bike ◽  
Nature Tourism ◽  
Tourist Destinations ◽  
The North ◽  
Sports Tourism ◽  
Qualitative Descriptive ◽  
White Water ◽  
Tourism Potential ◽  
Pass Through

Abstrak - Dalam dunia pariwisata banyak sekali jenis-jenis wisata salah satunya Sport Tourism atau wisata olah raga. Kabupaten Sleman salah satu contoh mempunyai potensi wisata alam yang dapat dipetakan untuk wisata olah raga atau sport tourism. Pada masa pandemi covid-19 dan pembatasan sosial terdapat kecenderungan masyarakat memanfaatkan waktu untuk berolahraga dengan tujuan meningkatkan imun, seperti jalan sehat, lari ataupun bersepeda ke spot-spot wisata yang tersebar diwilayah Yogyakarta. Tujuan penelitian ini adalah untuk menggali potensi wisata di Kabupaten Sleman sudah menyediakan fasilitas Sport Tourism. Dalam penelitian yang bersifat deskriptif kualitatif ini, peneliti mengangkat potensi wisata alam di Kabupaten Sleman yang memiliki wahana sport tourism. Hasilnya didapatkan data bahwa disisi utara terdapat lereng gunung Merapi tepatnya di bukit Klangon yang telah dikembangkan wisata olahraga berupa Mountain Bike untuk ajang kejuaraan lokal maupun tingkat nasional. Destinasi dikawasan wisata candi prambanan juga banyak digunakan untuk event nasional dan internasioanal sebagai wisata olah raga seperti marathon, road bike, jalan sehat, sepeda santai dan yoga. Disisi barat pada aliran sungai Progo yang mengalir di wilayah Kabupaten Sleman sudah dimanfaatkan juga untuk sport tourism olah raga arung jeram dan pada aliran sungai Opak di obyek wisata Lava Bantal Berbah Sleman juga digunakan untuk wisata river tubing dan sepeda santai. Kawasan lain yang tidak kalah menarik dalam mengembangkan sport tourism adalah perbukitan yang ada kecamatan Prambanan Sleman. Kawasan ini berada disisi timur Yogyakarta yang memiliki banyak destinasi wisata baik alam maupun sejarah seperti Candi Boko, Tebing Breksi dan Spot Riyadi.  Kawasan wisata ini masih dapat dikembangkan lagi untuk kegiatan wisata olahraga yang menarik wisatawan baik nasional maupun internsional, seperti sport lari lintas alam, marathon, mountain bike, sepeda santai dan jalan santai dengan menjelajahi rute perbukitan yang melewati obyek wisata tersebut. Kata Kunci : Potensi, Wisata Alam, Sport Tourism Abstract – In the world of tourism, there are many types of tourism, one of which is sport tourism. One example of Sleman Regency has the potential for natural tourism that can be mapped for sports tourism or sport tourism. During the COVID-19 pandemic and social restrictions, there is a tendency for people to use their time to exercise with the aim of increasing their immunity, such as healthy walks, running or cycling to tourist spots spread across the Yogyakarta area. The purpose of this research is to explore the tourism potential in Sleman Regency which has provided Sport Tourism facilities. In this qualitative descriptive study, the researcher raised the potential of natural tourism in Sleman Regency which has a sport tourism vehicle. The results obtained data that on the north side there is a slope of Mount Merapi, precisely on the Klangon hill, which has developed sports tourism in the form of Mountain Bikes for local and national championship events. Destinations in the Prambanan temple area are also widely used for national and international events as sports tourism such as marathons, road bikes, healthy walks, relaxing bicycles and yoga. On the west side, the Progo river that flows in the Sleman Regency area has also been used for sport tourism, white water rafting and the Opak river at the Lava Pillow Berbah tourism object, Sleman is also used for river tubing and relaxing bicycles. Another area that is no less interesting in developing sport tourism is the hills in the Prambanan sub-district of Sleman. This area is located on the east side of Yogyakarta which has many natural and historical tourist destinations such as Boko Temple, Breksi Cliff and Riyadi Spot. This tourist area can still be developed again for sports tourism activities that attract both national and international tourists, such as cross-country running sports, marathons, mountain bikes, leisurely bicycles and leisurely walks by exploring hilly routes that pass through these attractions.Keyword : Potential, Nature Tourism, Sport Tourism

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