A Partial Solution to the C-Value Paradox

2005 ◽  
pp. 97-105 ◽  
Author(s):  
Jeffrey M. Marcus
Keyword(s):  
Partial Solution ◽  
C Value

ANALISIS USAHA AGROINDUSTRI KERIPIK TEMPEDI DESA SUMBER DATAR KECAMATAN SINGINGIKABUPATEN KUANTAN SINGINGI (Studi Kasus Pada Usaha Keripik Tempe Djokam)

2019 ◽  
Vol 3 (2) ◽  
Author(s):  
Febry Nugroho ◽  
Jamalludin Jamalludin ◽  
Elfi Indrawanis
Keyword(s):  
Selling Price ◽  
Fixed Costs ◽  
Total Cost ◽  
Price Point ◽  
C Value ◽  
Revenue Efficiency

Penelitian ini dilakukan di Desa Samber Datar Kecamatan Singingi Kabupaten Kuantan Singingi, Penelitian ini bertujuan untuk mengetahui besarnya pendapatan, efesiensi usaha R/C dan untuk mengetahui BEP produksi dan BEP harga pada usaha Agroindustri Keripik Tempe Djokam di Desa Sumber Datar Kecamatan Singingi Kabupaten Kuantan Singingi. Hasil penelitian ini menunjukan bahwa pendapatan keripik tempe djokam Rp 425.327/produksi dengan total biaya yang dikeluarkan sebesar Rp 574.673, yang terdiri dari biaya tetap dan biaya tidak tetap, nilai R/C sebesar 1,74, artinya setiap biaya yang dikeluarkan 1 rupiah maka diperoleh penerimaan sebesar 1,74 rupiah atau keuntungan sebesar 0,74 rupiah dan Break Even Poin produksi dengan total biaya sebesar Rp 574,673, maka harus memproduksi sebanyak 11,49 Kg dengan harga jualnya Rp 50.000, agar mencapai titik impas. Break Even Poin harga  dengan biaya sebesar Rp 574.673 maka Agroindustri Keripik Tempe harus memproduksi sebanyak 20 Kg dengan harga jual sebesar Rp 28.733, supaya mencapai titik impasnya.Kata Kunci : Agroindustri; Keripik Tempe; Pendapatan; R/C Ratio; BEP ABSTRACTThis research was conducted in Samber Datar Village, Singingi Subdistrict, Kuantan Singingi District. This study aims to determine the amount of revenue, efficiency of the R / C business and to determine the production BEP and price BEP in the Agroindustry of Tempe Djokam chips in Sumber Datar Village, Singingi District, Kuantan Singingi District. The results of this study indicate that the income of tempe chips djokam Rp 425,327 / production with a total cost incurred in the amount of Rp 574,673, consisting of fixed costs and variable costs, R / C value of 1.74, meaning that each cost incurred 1 rupiah is obtained revenue of 1.74 rupiahs or profit of 0.74 rupiahs and Break Even Points of production with a total cost of Rp 574,673, it must produce as much as 11.49 kg with a selling price of Rp 50,000, in order to break even. Break Even Price point at a cost of Rp 574,673 then the Tempe Chips Agroindustry must produce 20 kg with a selling price of Rp 28,733, in order to break even.Keywords: Agro-industry; Tempe Chips; Revenue; R / C Ratio; BEP

Permutation Separations and Complete Bipartite Factorisations of $K_{n,n}$

10.37236/1730 ◽  
2003 ◽  
Vol 10 (1) ◽  
Author(s):  
Nigel Martin ◽  
Richard Stong
Keyword(s):  
C Value

Suppose $p < q$ are odd and relatively prime. In this paper we complete the proof that $K_{n,n}$ has a factorisation into factors $F$ whose components are copies of $K_{p,q}$ if and only if $n$ is a multiple of $pq(p+q)$. The final step is to solve the "c-value problem" of Martin. This is accomplished by proving the following fact and some variants: For any $0\le k\le n$, there exists a sequence $(\pi_1,\pi_2, \dots,\pi_{2k+1})$ of (not necessarily distinct) permutations of $\{1,2,\dots,n\}$ such that each value in $\{-k,1-k,\dots,k\}$ occurs exactly $n$ times as $\pi_j(i)-i$ for $1\le j\le 2k-1$ and $1\le i\le n$.

Big Questions in Ecology and Evolution

2009 ◽  
Author(s):  
Thomas N. Sherratt ◽  
David M. Wilkinson
Keyword(s):  
Partial Solution ◽  
Fundamental Importance ◽  
Evolutionary Perspective ◽  
Text Book ◽  
Broad Audience ◽  
The Future ◽  
The Tropics ◽  
Made In ◽  
Do So

Why do we age? Why cooperate? Why do so many species engage in sex? Why do the tropics have so many species? When did humans start to affect world climate? This book provides an introduction to a range of fundamental questions that have taxed evolutionary biologists and ecologists for decades. Some of the phenomena discussed are, on first reflection, simply puzzling to understand from an evolutionary perspective, whilst others have direct implications for the future of the planet. All of the questions posed have at least a partial solution, all have seen exciting breakthroughs in recent years, yet many of the explanations continue to be hotly debated. Big Questions in Ecology and Evolution is a curiosity-driven book, written in an accessible way so as to appeal to a broad audience. It is very deliberately not a formal text book, but something designed to transmit the excitement and breadth of the field by discussing a number of major questions in ecology and evolution and how they have been answered. This is a book aimed at informing and inspiring anybody with an interest in ecology and evolution. It reveals to the reader the immense scope of the field, its fundamental importance, and the exciting breakthroughs that have been made in recent years.

scholarly journals PSII-22 Comparison of the meat quality traits of crossbred pigs and the Large Black pigs

2019 ◽  
Vol 97 (Supplement_3) ◽  
pp. 241-242
Author(s):  
Yongjie Wang ◽  
Keshari Thakali ◽  
Sarah Shelby ◽  
Jason Apple ◽  
Yan Huang
Keyword(s):  
Meat Quality ◽  
Genomic Diversity ◽  
Longissimus Dorsi ◽  
Rna Seq ◽  
Longissimus Dorsi Muscle ◽  
A Value ◽  
Dorsi Muscle ◽  
Body Weights ◽  
C Value ◽  
Crossbred Pigs

Abstract The purpose of this study was to compare the meat quality and genomic differences between cross-bred commercial pig (CP) and domestic Large Black pig (BP). Seven cross-bred commercial pigs and eight British Large Black pigs were assigned to CP group and BP group, with initial mean body weights of 18.82±1.412 kg for CP group and 23.31±1.935 kg for BP group, P = 0.061, and fed ad libitum. The final BW of the CP at d101 was similar to the BP (130.0±8.16 kg vs. 121.1±2.80 kg, P = 0.132). However, the BP group took 108 days to reach the final BW. The ADG in the CP was higher than BP (1.102±0.0599 kg vs. 0.905±0.0138 kg, P = 0.003). The hot carcass weight of CP was higher (P &lt; 0.01) than BP, but the backfat of BP was higher (P &lt; 0.01) than CP. The a* value of CP was higher (P &lt; 0.05) than BP, and the c* value of CP was tended to be higher (P &lt; 0.10) than BP. However, the h value of BP was higher (P &lt; 0.05) than CP. The longissimus dorsi muscle fat content of BP was higher (P &lt; 0.05) than CP. For the fatty acid composition, the SFA and MUFA of BP were higher (P &lt; 0.05) than CP, but the PUFA of CP was higher (P &lt; 0.05) than BP. The metmyoglobin content of CP was tended to be higher (P &lt; 0.10) than BP. For the meat metabolism, the oxygen consumption of longissimus dorsi muscle of BP was higher (P &lt; 0.01) than CP. The RNA-Seq data showed that the expression of the genes related to lipid metabolism is higher in BP (fold change &gt; 3, P &lt; 0.05). To conclude, BP has higher meat quality, while CP has its advantages in growth performance. And the differences between these two breeds may due to the genomic diversity.

scholarly journals Effect of sizing agent on interfacial properties of carbon fiber-reinforced PMMA composite

2021 ◽  
Vol 30 ◽  
pp. 2633366X2097865
Author(s):  
Li Jian
Keyword(s):  
Shear Strength ◽  
Surface Treatment ◽  
Photoelectron Spectroscopy ◽  
Resin Composite ◽  
Contact Angles ◽  
Static Contact ◽  
Before And After ◽  
C Value ◽  
Interlayer Shear Strength ◽  
Pmma Resin

The surface treatment of carbon fibers (CFs) was carried out using a self-synthesized sizing agent. The effects of sizing agent on the surface of CFs and the interface properties of CF/polymethyl methacrylate (PMMA) composites were mainly studied. Scanning electron microscopy, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, and static contact angle were used to compare and study the CFs before and after the surface treatment, including surface morphology, surface chemical element composition, and wettability of the surface. The influence of sizing agent on the mechanical properties of CF/PMMA resin composite interface was investigated. The results show that after sizing treatment, the CF surface O/C value increased by 35.1% and the contact angles of CF and resin decreased by 16.2%. The interfacial shear strength and interlayer shear strength increased by 12.6%.

scholarly journals Graph Learning for Combinatorial Optimization: A Survey of State-of-the-Art

2021 ◽  
Author(s):  
Yun Peng ◽  
Byron Choi ◽  
Jianliang Xu
Keyword(s):  
Machine Learning ◽  
Combinatorial Optimization ◽  
Graph Embedding ◽  
Partial Solution ◽  
Complex Data ◽  
Learning Methods ◽  
Graph Learning ◽  
Second Stage ◽  
End To End ◽  
Embedding Methods

AbstractGraphs have been widely used to represent complex data in many applications, such as e-commerce, social networks, and bioinformatics. Efficient and effective analysis of graph data is important for graph-based applications. However, most graph analysis tasks are combinatorial optimization (CO) problems, which are NP-hard. Recent studies have focused a lot on the potential of using machine learning (ML) to solve graph-based CO problems. Most recent methods follow the two-stage framework. The first stage is graph representation learning, which embeds the graphs into low-dimension vectors. The second stage uses machine learning to solve the CO problems using the embeddings of the graphs learned in the first stage. The works for the first stage can be classified into two categories, graph embedding methods and end-to-end learning methods. For graph embedding methods, the learning of the the embeddings of the graphs has its own objective, which may not rely on the CO problems to be solved. The CO problems are solved by independent downstream tasks. For end-to-end learning methods, the learning of the embeddings of the graphs does not have its own objective and is an intermediate step of the learning procedure of solving the CO problems. The works for the second stage can also be classified into two categories, non-autoregressive methods and autoregressive methods. Non-autoregressive methods predict a solution for a CO problem in one shot. A non-autoregressive method predicts a matrix that denotes the probability of each node/edge being a part of a solution of the CO problem. The solution can be computed from the matrix using search heuristics such as beam search. Autoregressive methods iteratively extend a partial solution step by step. At each step, an autoregressive method predicts a node/edge conditioned to current partial solution, which is used to its extension. In this survey, we provide a thorough overview of recent studies of the graph learning-based CO methods. The survey ends with several remarks on future research directions.

Hamiltonicity of a class of toroidal graphs

2020 ◽  
Vol 70 (2) ◽  
pp. 497-503
Author(s):  
Dipendu Maity ◽  
Ashish Kumar Upadhyay
Keyword(s):  
Connected Graph ◽  
Hamiltonian Cycle ◽  
Partial Solution ◽  
The Other ◽  
Hamiltonian Cycles ◽  
The Face ◽  
Toroidal Graphs

Abstract If the face-cycles at all the vertices in a map are of same type then the map is said to be a semi-equivelar map. There are eleven types of semi-equivelar maps on the torus. In 1972 Altshuler has presented a study of Hamiltonian cycles in semi-equivelar maps of three types {36}, {44} and {63} on the torus. In this article we study Hamiltonicity of semi-equivelar maps of the other eight types {33, 42}, {32, 41, 31, 41}, {31, 61, 31, 61}, {34, 61}, {41, 82}, {31, 122}, {41, 61, 121} and {31, 41, 61, 41} on the torus. This gives a partial solution to the well known Conjecture that every 4-connected graph on the torus has a Hamiltonian cycle.

scholarly journals Designing a Bonus-Malus system reflecting the claim size under the dependent frequency–severity model

2021 ◽  
pp. 1-25
Author(s):  
Rosy Oh ◽  
Joseph H.T. Kim ◽  
Jae Youn Ahn
Keyword(s):  
Recent Literature ◽  
Insurance Industry ◽  
Random Effect ◽  
Random Effect Model ◽  
Partial Solution ◽  
Risk Classification ◽  
Transition Rule ◽  
Auto Insurance ◽  
Dependent Frequency ◽  
Effect Model

In the auto insurance industry, a Bonus-Malus System (BMS) is commonly used as a posteriori risk classification mechanism to set the premium for the next contract period based on a policyholder's claim history. Even though the recent literature reports evidence of a significant dependence between frequency and severity, the current BMS practice is to use a frequency-based transition rule while ignoring severity information. Although Oh et al. [(2020). Bonus-Malus premiums under the dependent frequency-severity modeling. Scandinavian Actuarial Journal 2020(3): 172–195] claimed that the frequency-driven BMS transition rule can accommodate the dependence between frequency and severity, their proposal is only a partial solution, as the transition rule still completely ignores the claim severity and is unable to penalize large claims. In this study, we propose to use the BMS with a transition rule based on both frequency and size of claim, based on the bivariate random effect model, which conveniently allows dependence between frequency and severity. We analytically derive the optimal relativities under the proposed BMS framework and show that the proposed BMS outperforms the existing frequency-driven BMS. Later, numerical experiments are also provided using both hypothetical and actual datasets in order to assess the effect of various dependencies on the BMS risk classification and confirm our theoretical findings.

scholarly journals Investigation of Feller-Buncher Performance Using Weibull Distribution

Forests ◽  
2021 ◽  
Vol 12 (3) ◽  
pp. 284
Author(s):  
Ebru Bilici
Keyword(s):  
Weibull Distribution ◽  
Shape Parameter ◽  
B Value ◽  
Productivity Analysis ◽  
Volume Data ◽  
Estimation Model ◽  
Distribution Method ◽  
Timber Volume ◽  
C Value ◽  
The Right

With the advancement of technology in forestry, the utilization of advanced machines in forest operations has been increasing in the last decades. Due to their high operating costs, it is crucial to select the right machinery, which is mostly done by using productivity analysis. In this study, a productivity estimation model was developed in order to determine the timber volume cut per unit time for a feller-buncher. The Weibull distribution method was used to develop the productivity model. In the study, the model of the theoretical (estimated) volume distributions obtained with the Weibull probability density function was generated. It was found that the c value was 1.96 and the b value was 0.58 (i.e., b is the scale parameter, and c is the shape parameter). The model indicated that the frequency of the volume data had moved away from 0 as the shape parameter of the Weibull distribution increased. Thus, it was revealed that the shape parameter gives preliminary information about the distribution of the volume frequency. The consistency of the measured timber volume with the estimated timber volume strongly indicated that this approach can be effectively used by decision makers as a key tool to predict the productivity of a feller-buncher used in harvesting operations.

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