Results 71 to 80 of about 6,468,446 (336)
Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM
FEBS Letters, EarlyView.Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley +1 more source
Lot Sizing with Piecewise Concave Production Costs [PDF]
INFORMS Journal on Computing, 2014 We study the lot-sizing problem with piecewise concave production costs and concave holding costs. This problem is a generalization of the lot-sizing problem with quantity discounts, minimum order quantities, capacities, overloading, subcontracting or a combination of these.
Koca, E., Yaman H., Aktürk, M.S.
openaire +5 more sources
Disordered but rhythmic—the role of intrinsic protein disorder in eukaryotic circadian timing
FEBS Letters, EarlyView.Unstructured domains known as intrinsically disordered regions (IDRs) are present in nearly every part of the eukaryotic core circadian oscillator. IDRs enable many diverse inter‐ and intramolecular interactions that support clock function. IDR conformations are highly tunable by post‐translational modifications and environmental conditions, which ...
Emery T. Usher, Jacqueline F. Pelham
wiley +1 more source
Firefly Algorithm: Minimizing Cost on Single-Level Lot-Sizing Problem
Journal of Computing Research and Innovation, 2018 Nowadays, the industrial company plays a very important role to our country. However, the manufacturer industry has big issues in the production planning which called planning horizon where, the lot-sizing problem is one of the most important issues in ...
Siti Hafawati Jamaluddin +3 more
doaj
Implementasi Algoritma Wagner-Within pada Manajemen Inventori di PT X
Business and Finance Journal, 2018 The increasing competition in the manufacturing industry caused increasing inconsumer demand of the quality and quantity of a good product. Therefore, manufacturing companies must have reliable services, policies and product qualities to satisfy its ...
Puspandam Katias, Achmad Affandi
doaj +1 more source
Four equivalent lot-sizing models [PDF]
We study the following lot-sizing models that recently appeared in the literature: a lot-sizing model with aremanufacturing option, a lot-sizing model with production time windows, and a lot-sizing model with cumulativecapacities. We show the equivalence
Heuvel, W. van den, Wagelmans, A.P.M.
core +1 more source
Time after time – circadian clocks through the lens of oscillator theory
FEBS Letters, EarlyView.Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo +2 more
wiley +1 more source
Jurnal Teknik ITS, 2014 Proyek Pembangunan Jembatan Sungai Brantas merupakan tahap dari pelaksanaan proyek Jalan Tol Kertosono-Mojokerto dimana jalan tol ini akan terhubung dengan Jalan Tol Surabaya-Mojokerto.
Titis Wahyu Pratiwi +2 more
doaj
Developing and Solving a Two Level Lot Sizing Problem [PDF]
چشمانداز مدیریت صنعتی, 2017 In This Article, a two level lot sizing problem with multi production methods and fuzzy demand is presented.The objective of the model is to minimize the costs.Various approaches like Genetic Algorithm (GA), Simulated Annealing (SA) and Vibration Damping
Mohammad Ebrahimi, Maghsoud Amiri
doaj
Lot-sizing with stock upper bounds and fixed charges [PDF]
Here we study the discrete lot-sizing problem with an initial stock variable and an associated variable upper bound constraint. This problem is of interest in its own right, and is also a natural relaxation of the constant capacity lot-sizing problem ...
DI SUMMA, Marco, WOLSEY, Laurence A.
core