The order of a singularity in Fuchs' theory

1959 ◽  
Vol 72 (1) ◽  
pp. 379-398 ◽  
Author(s):  
J�rgen Moser
Keyword(s):  
Fuchs Theory

Pemuatan listrik bipolar untuk partikel aerosol

2018 ◽  
Vol 4 (3) ◽  
pp. 287
Author(s):  
Heru Setyawan
Keyword(s):  
Experimental Data ◽  
Particle Size ◽  
Ion Mobility ◽  
Opposite Sign ◽  
Aerosol Particles ◽  
Calculation Results ◽  
Two Parameters ◽  
Diffusion Charging ◽  
Fuchs Theory ◽  
Good Agreement

Bipolar diffusion charging of aerosol particles has been studied theoretically using Fuchs theory. Experimental data measured by several researchers available in the published literature were used to verify the calculation results. The calculation results show that Fuchs theory has been successfully used to predict the experimental data of the charging probability of submicron aerosol particles. The combination probability of ion-particle increases with the increase of particle size, both for particle and ion with the same sign and those with the opposite sign. However the combination probability is larger if the charges of particle and ion are of the opposite sign. Generally, Fuchs theory is not too easy to deal with due to the ill-defined of all parameters used, namely ion mass and ion mobility. These cause many possibilities of parameter combination that can give a good agreement with experimental data. Thus, in order to interpret the experimental results properly, the two parameters should be measured simultaneously with aerosol measurements.Keywords: Aerosol, Bipolar Charging, Combination ProbabilityAbstrakPemuatan listrik difusi bipolar partikel aerosol telah dipelajari secara teoritis menggunakan teori Fuchs. Sebagai verifikasi digunakan data eksperimen beberapa peneliti yang tersedia dalam literatur yang telah dipublikasikan. Hasil perhitungan menunjukkan bahwa teori Fuchs berhasil memprediksi dengan baik data eksperimen probabilitas pemuatan listrik partikel aerosol dalam rentang ukuran partikel berukuran submikron. Probabilitas penggabungan ion-partikel semakin besar dengan semakin besarnya ukuran partikel, baik untuk partikel dan ion yang memiliki tanda yang berlawanan maupun yang memiliki tanda yang sama. Akan tetapi, probabilitas penggabungan untuk partikel dan ion yang memiliki tanda yang berlawanan memiliki nilai yang lebih besar. Pada umumnya teori Fuchs tidak terlalu mudah untuk digunakan yang disebabkan oleh tidak terdefinisikannya dengan baik semua parameter yang digunakan, yaitu  massa ion dan mobilitas ion. Hal ini mengakibatkan banyak kemungkinan kombinasi parameter yang bisa menghasilkan kesesuaian yang bagus dengan data hasil pengukuran. Jadi, agar dapat menginterpretasikan hasil pengukuran dengan tepat, kedua besaran tersebut harus diukur secara serempak denganpengukuran aerosol.Kata Kunci: Aerosol, Pemuatan Listrik Bipolar, Probabilitas Penggabungan

ON THE OPTICAL AND ELECTRICAL PROPERTIES OF SEMITRANSPARENT COPPER FILMS

1960 ◽  
Vol 38 (12) ◽  
pp. 1570-1576 ◽  
Author(s):  
R. S. Adhav
Keyword(s):  
Electrical Properties ◽  
Deposition Rate ◽  
Optical Constants ◽  
Copper Films ◽  
Optical And Electrical Properties ◽  
Simultaneous Measurements ◽  
Photo Multiplier Tube ◽  
Fuchs Theory

Simultaneous measurements were made of the optical constants n and k, reflectance R, transmittance T, and of the d-c. conductivity σ, of semitransparent copper films deposited onto quartz by evaporation in vacuo. All depositions were carried out at a pressure p ≈ 10−5 mm Hg and with a deposition rate D = 2 Å/sec. The optical constants were determined by an ellipsometer with a photo-multiplier tube attachment at the wavelengths 435 mμ, 546 mμ, and 630 mμ. The reflectance values were computed from the optical constants. The transmittance values were measured at these wavelengths by a unicam spectrophotometer. The d-c. conductivities were measured by a kohlrausch bridge. These measurements were carried out in the thickness range 60 Å to 455 Å. The disagreement of the results with the Garnett theory and the Fuchs theory is discussed and conclusions regarding the structure and the degree of porosity are drawn.

scholarly journals Conflict resolution in Nigerian partisan politics: Insights from the quest for leadership in Markan narratives

2021 ◽  
Vol 2 (1) ◽  
pp. 1-7
Author(s):  
Honor Maupego Sewapo ◽  
◽  
Enock Oluwadare Ajibade ◽  
Keyword(s):  
Conflict Resolution ◽  
Political Conflict ◽  
Partisan Politics ◽  
Conflict Prevention ◽  
Extant Literature ◽  
Fuchs Theory

The quest for leadership, request to secure the foremost seats of influence at the side of Jesus (as done by James and John), is evident within Markan narratives. After this indecorous request, conflict crept into the camp of Jesus’ twelve disciples as the ten other disciples fumed over James’ and John’s bid to outflank them in prominence. Extant literature has focused on the event surrounding their request and the quality of the greatest in God’s service to the neglect of Jesus’ strategy of resolving the conflict, its contribution to the success of Jesus’ ministry and its relevance to resolving conflict in contemporary partisan politics. This paper, therefore, examines the quest for leadership in Markan narratives (9:33-37 and 10:35-45), with particular reference to Jesus’ strategy of resolving conflict. This is with a view to establishing its relevance to resolving Nigeria’s partisan political conflict. Fuchs’ theory of the New Hermeneutic was adopted. Data were subjected to exegetical analysis. Findings will have implication on conflict prevention and/or conflict resolution in human endeavours.

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