Worst Condition Research Articles

A BER-Suppressed PUF With an Amplification of Process Mismatch Effect in an Oscillator Collapse Topology

The physically unclonable function (PUF) has been implemented with circuits that perform amplification of randomly given small process mismatch by using an explicit amplifier or by making a signal path repeatedly experience the same delay skew in an oscillator. Though the amplifier approach provides a fast response, it is vulnerable to noise at the first stage of amplification. On the other hand, the oscillator-based scheme requires a longer time to develop a digital output while achieving good noise immunity. This article proposes a PUF circuit exploiting a hybrid architecture, which combines a process skew amplification scheme in an oscillator collapse topology. The proposed scheme compensates for the drawbacks of the two approaches while achieving merits of them, i.e., high sensitivity to process variation and good immunity to noise. The supply rails of an even-stage ring oscillator (RO) are alternately fed from a diode-based threshold-sampling block. An IC with an array of 128 PUF cells is fabricated in 40-nm CMOS, showing a native bit error rate (BER) of 0.027%. Processing of 7-b temporal majority voting (TMV7) with a 3.64% masking demonstrates an error-free operation in a nominal condition. It shows a BER of 0.0019% in the worst condition under a voltage range of 0.7–1.4 V and a temperature range of −40 °C to 125 °C.

Design and Numerical Simulation of an Odometer Wheel Used in an Ultrasonic In-Line Inspection Tool

An odometer wheel is used to measure forward distance for a piezoelectric ultrasonic device, and it plays a key role in locating defections. Buckling and skidding are its main problems in applications. Based on a self-developed in-line inspection tool, an odometer wheel was designed according to mechanical design principles. A finite element model on scale of 1 : 1 was built to simulate mechanical performance of the odometer wheel. Results show that the maximum Mises stress under the worst condition is far less than the elastic limit of chosen stainless steel, and deformations of swing arms are slight. Acting forces under different conditions also meet requirements of antiskid. It indicates that the designed object has good performance in terms of structure stability and skid prevention.

Preliminary Study on Existing Scenario of Selected Soil Properties in Cheddikulum Grama Niladhari Division Vavuniya District, Sri Lanka

The productivity of the soil has changed into the worst condition knowingly or unknowingly by anthropogenic activities as well as natural phenomena. The study was conducted to quantify selected soil properties in Cheddikulum Grama Niladhari division, Vavuniya District and find reclaim the problem soil and make suggestions to cultivate the crop variety suitable for the existing soil properties since this area is a recently rehabilitated area. Fifty composite samples were selected for the research using the stratified random sampling method. Stratification was based on the type of land cover, and following land cover patterns were identified agriculture land patches, forest patches, and grassland patches. Soils were collected from top to 30 cm depth (root zone) using a core sampler, and subsamples were collected to obtain composite samples. Soil samples were analyzed for pH, EC, organic matter content, total nitrogen, exchangeable potassium, and available phosphorous. 14.8% of agricultural land area was acidic soil and 4.7% alkaline soil. 15.3% of agricultural land area was identified as saline soil. 67.11% of agricultural lands contain more phosphorous concentration than the optimum range. 4.7% of agricultural lands contain higher potassium concentrations than the optimum range. 94% of forest lands and 100% of grasslands contains phosphorous concentration higher than the optimum range. But forest lands showed a lower level of potassium concentration. 23.6% of grasslands contain higher potassium than the optimum level. Organic matter ranged between 0.01% to 5.43% in agricultural lands where 82% of total nitrogen concentrations were the optimum level. Agriculture practices lead to change in the soil; hence identified soil problems should be reclaimed in order to maintain the fertility of the soil for sustainable production. Proper management of soil can be a better solution for supporting the successful agricultural activity of the community in the future and socio-economic development of this region and need to be adhering to crop variety selection and soil reclamation practices.
 Keywords: Productivity, Soil problems, Soil reclamation

Transvaginal pudendal nerve blocks in patients with pudendal neuralgia: 2-year follow-up results.

Pudendal neuralgia (PN) is an extremely painful neuropathy of the pudendal nerve resulting in a negative impact on a patient's quality of life. The aim of this study is to evaluate the 2-year outcomes of repetitive doses of the transvaginal pudendal nerve injections (PNI), and to compare the success of the PNI concerning anatomical levels (endopelvic and extrapelvic portion) of the pudendal nerve pathology. This retrospective longitudinal cohort study consists of patients with PN diagnosed with the first four essential Nantes criteria. Diagnostic PNI was performed on 67 patients to fulfill the fifth criteria of Nantes. A total of 56 patients who responded to the initial diagnostic PNI underwent therapeutic repeated transvaginal PNIs twice for 3weeks apart. Mean pain intensity scores were measured using a visual analog scale at the 1st, 3rd, 6th, 12th, and 24th months after the therapeutic blocks were completed. Effectiveness of the PNIs' was defined as ≥ 50% improvement of the initial pain, and relative improvement was defined as 30-50% improvement of the initial pain. Treatment failure was defined as the reduction of the initial pain by less than 30% or the return of the pain to its worst condition. The efficacy of the PNIs significantly declined over time. Pudendal nerve blocks provided a significant decrease in pain scores; however, this decrease lost its strength significantly in the 24th month. The intervention was more effective in entrapments of the pudendal nerve between sacrospinous and sacrotuberous ligaments or below (Level-2) when compared to the injuries in the endopelvic part (Level-1). More than 50% pain reduction continued in five patients with pathology at Level-1 and 24 patients with pathology at Level-2. Repeated PNIs could provide a significant decrease in pain scores for both short- and long-term periods. However, the efficacy of the PNIs declined over 2years. The success of PNIs may be affected by the anatomical level of the nerve injury; therefore, interligamentous pudendal nerve entrapment cases have more benefits than the cases of pudendal nerve entrapment in the endopelvic part. However, it is recommended to perform therapeutic nerve blocks even in patients with suspected endopelvic pudendal nerve pathology before the referral to surgery.

Optimisation of gravity retaining walls under bounded uncertainties

ABSTRACT The article presents the optimisation of gravity retaining walls under bounded uncertainties using Differential Evolution method. This problem is a two-level optimisation, i.e. main loops for the objective function optimisation and inside loops for the most disadvantaged circumstances of constraints, which are the wall sliding, the wall overturning and the soil bearing capacity. The uncertainties are of the surcharge intensity, the backfill soil and the ground soil properties. Since the constraints are continuous and monotonic functions of uncertainties, the search of the worst condition of constraints in inside loops can limit at vertices of the feasible region defined by the lower and upper bounds of uncertainties instead of the whole region. Four cases of the wall heights are illustrated for this approach.

IMPACT OF COVID-19 ON HUMAN IN INDIA (A META-ANALYSIS)

The year 2020 and 21 have been very bad for India and the world. When Corona started showing its wrath, human life came in danger. It has inflicted wounds on us at every level, the economies of many countries have collapsed. During this time unemployment and hunger were very high. But the Indian government resorted to lockdown to combat this disease. Due to the imposition of lockdown and sudden stop of traffic, the migrant labourers had to face the most. The effect of the lockdown was reversed on human life, where the lockdown and unemployment forced the poor people and migrant labourers to return their home villages. The worst condition of this disease was of migrant labourers, who walked in lakhs of hungry and bare feet towards their local village along with their wives and children. Women were also not untouched by the effect of Corona. According to a World Bank report, more than 12 million people in India have reached the condition of poverty. Sexual violence, online harassment and domestic abuse have increased during the Corona period. As of 10 August 2021, a survey conducted last year (between June and August 2020) showed that on return to their villages, there was an average decline of up to 85 percent in the income of migrant workers. Due to unemployment, common men life has become more painful than before. It was found in many surveys that the effect of Covid-19 has been on people's employment and pockets. The survey found that a total of 66 percent of the people's pockets have been affected by Covid-19. 28 per cent of the people were cut in their wages, 25 per cent people worked without pay and 17 per cent people lost their jobs. The lockdown imposed by the Government of India and the government order not to go out of the house closed the whole of India. This had a direct impact on employment. Factories were closed. The employment of common man and migrant labourers was snatched away which forced them to return to their homes. The CMIE report said that between January and March, the number of jobs in India fell from 411 million to 39.6 million and the number of unemployed increased from 320 million to 38 million. Therefore a decline of 90 lakh in the labours force results in a fall of 15 million in the number of workers and an increase in the number of unemployed by 60 lakh. But the way the Modi’s government is dealing with the corona epidemic, 84 percent of the Indians who participated in the survey are satisfied with the policies of the central government. In comparison, only 43 per cent in the US, 56 per cent in the UK, 53 per cent in Hong Kong and 71 per cent in Australia were found to be satisfied with the government's work in dealing with the pandemic.

Who Leads to Better Economic Growth? Dictatorship or Democracy?

Even though democracy is the most popular form of government globally based on the rights it provides its subjects, there has always been a debate about how dictatorships have witnessed remarkable economic growth. To understand this debate, the constantly changing political and social scenarios around the world should be considered as well because, with the dawn of globalisation, the policy domains of every country witnessed a response-oriented characteristic in its decision-making. The economist and author Dambisa Moyo is one of the several intellectuals in the field of economics who deemed dictators to lead the economy better. The observation she made was targeted at the countries with economies in the worst condition. She believed democracy to be the next priority once economic stability is achieved, but this rekindles the debate of who performs better at the economic front.

The Principle of ASN Neutrality in the 2020 Regional Head Elections: A Case Study in Maros Regency

This study aims to examine and analyze the implementation, prevention, forms of violations, and factors influencing the ASN Neutrality principle in the 2020 Regional Head Elections in Maros Regency. This study uses empirical research methods. Primary data collection is done by direct interviews. The data obtained in this study were then analyzed qualitatively to analyze the problem and answer the research objectives. The results showed that the neutrality of civil servants in implementing the 2020 Regional Head Elections in the Maros Regency had not been carried out correctly. The worst condition was because three unscrupulous employees violated ASN neutrality more than once. Meanwhile, Bawaslu has taken various forms of efforts to prevent violations related to ASN Neutrality in Maros Regency: through coordination and outreach meetings, letters of appeal, and visual aids. The factors that influence the neutrality of ASN in the holding of Regional Head Elections: are patron-client culture, primordial (kinship relations), law enforcement, and motivation for positions. Therefore, it is recommended that the Ministry of Internal Affairs increasingly consider the principle of neutrality in the selection process for ASN candidates. In addition, it is recommended that KASN provide strict sanctions for ASN who are not neutral. In this case, in the future, there will be no more violations of ASN neutrality that are committed more than once.

EFFECT OF LOAD ON GAIT

Introduction: Material Handling is one of the major activities performed by the workforce in the present scenario in industries. Our study aims to do the experiment with 22 different subjects and to collect the data using MiniSun IDEEA3 Gait Analysis instrument and to analyse the parameters Speed, EE and Stride length and find preventable measures to reduce fall risk. Material and Methods: Gait analysis experiment has been done with the subject with backpack and double pack with load of 5 kg and 10 kg. In the Industrial scenario, from construction site to cement industry, workers are carrying the load from one place to another. For instance, the typical scenario includes the transferring the load in backpack. All experiments were done in the institutegymnastic. Our study methodology deals with the conditions of experimentation, how sensors, recorder and sub recorder attached to subject body and how its working. This includes subject experiment conditions such as subject is walking on even surface and stairs with 5 kg backpack, 10 kg backpack and 5 kg double pack. When subject walks, data gets collected in recorder from sub recorder through wirelessly. Results: When subject walks with 10 kg backpack load gait parameters shows the worst condition i.e. prone to fall. However, if 10 kg backpack load distributed to 5 kg each side front and rear i.e. called double pack result shows a reliable change i.e. a safe limit to prevent the fall risk. So rather than preferring a backpack, double pack would be recommendable to prevent fall risk. The reason behind speed reduction is shorter steps with carrying load as compare to no load, which fails to maintain minimum unimpaired walking speed 55m/min. But greater than 75 m/min suggested to exceptional life expectancy. But not prove to be best in reduced fall risk while carrying. When load increases, speed get decreases, energy expenditure increases, stride length decreases. These all-gait parameters indicate a significant change that is the major cause of fall during manual material handling in industries. Conclusion: So those with high BMI if carry material in manual material handling industries, the Speed and EE will be major and considerable factor to fall. Thus Speed and energy expenditure needs to be investigated with Influence of walking speed, external load, energy expenditure and power on gait characteristics, to find the relationship between the risk of injury to kinematic changes due to external load on speed, energy expenditure and power.

Robust liner ship routing and scheduling schemes under uncertain weather and ocean conditions

Since sailing along the Northern Sea Route (NSR) through the Arctic Ocean comes into reality, commercial shipping developments including opening new liner services along this route have been put on the agenda. However, uncertainties within weather and ocean conditions in this region, especially during temperature-varying seasons, may cause failure to on-time arrivals, resulting unignorable or even unaffordable monetary losses. As a result, these uncertainties will inevitably affect cargo shippers’ willingness of choosing this being-explored route, even if on average its shipping time is much shorter than that of the traditional Asia-Europe shipping lines. In this context, the present paper describes a liner ship routing and scheduling problem considering schedule-sensitive demand and late-arrival penalty for operating incoming NSR shipping lines in the future. By using two types of uncertainty sets, bounded and budget-bounded uncertainty sets, we construct and solve two robust counterparts of this problem. The deterministic model and bounded robust model can be seen as special cases of the budget-bounded robust model when the uncertainty budget is set to null and full, respectively. A multifaceted case study of planning liner shipping routes and schedules along the NSR is conducted to validate the efficacy and efficiency of the proposed models and identify the effects of uncertainty bounds and budgets on the solution performance. The following facts and conclusions are revealed from the optimization results of the case study: The budget-bounded robust model functions the best in the worst condition; low revenue rate and high demand sensitivity are the major factors for excluding a candidate port from the route; the order of a visited port in the route decides the weight of its uncertainty budget on the entire shipping line; setting the uncertainty budget in a decelerative way will enhance the scheduling robustness of solutions.

Economic feasibility of integrated multi-trophic aquaculture (mussel Perna perna, scallop Nodipecten nodosus and seaweed Kappaphycus alvarezii) in Southeast Brazil: A small-scale aquaculture farm model

The economic viability of integrated multi-trophic aquaculture (IMTA) (Perna perna mussel, Nodipecten nodosus scallop, and Kappaphycus alvarezii algae) on the southeastern coast of Brazil was evaluated for a small-scale family production system, on 0.4 ha. Two 85 m longlines were used for the cultivation of P. Perna and another two were used for N. nodosus (System A). In addition, among the longlines, for the IMTA production (System B), four 85 m rafts were installed for the cultivation of K. alvarezii. Investment, operating costs, and profitability were estimated for the two production systems. Simulations of variations in the survival and in the market prices of the products were also carried out. A sensitivity analysis assessed the consequences of an annual crop loss. The financial indicators of Gross Revenue and Operating Profit, as well as the profitability indicators of the Gross Margin and Profitability Index showed positive values in all the conditions proposed for the two systems evaluated, even considering the crop loss. The Payback Period in the worst condition assessed was 4.24 years, still considered to be of low risk for the investment made. According to the particularities described here, there was economic viability with returns always above the nominal discount rate of 6%. The proposed economic evaluation model had the purpose of obtaining exact results, which would occasionally characterize the preliminary experience of commercial crops in an IMTA system on a family-size scale in Southeast Brazil, could contribute to a major socioeconomic advance in the region.

Current state of landscaping objects in Volzhsky

Green plantings in the urban environment form a natural carcass, increase environmental protection functions and create comfortable living conditions for the population. Research is relevant due to the fact that monitoring the state and conditions of green plantings growth is a prerequisite for timely adoption of measures to restore and maintain the proper functioning of urban natural-anthropogenic systems. The aim of the research is to assess the current state of landscaping objects in the city of Volzhsky. The plot with cadastral number 34:35:000000: 66118 has about 20% of dying trees, most of which are old-growth stands. Young and mature trees Populus nigra and Salix alba are in good condition. On the territory of the park (cadastral number 34:35:030121:201) >40% of trees are weakened or slightly damaged. The share of withering and withered trees reaches 27% of the total number of trees. Fraxinus excelsior is in the worst condition. 59% of Populus nigra trees dry up. In the park (cadastral number 34:35:030213:246) the forest stand and lawn cover are in excellent condition. The roadside forest belt (cadastral number 34:28:000000:2955) cannot fully fulfill its ecological functions and does not meet economic goals.

Host plant identity and condition shape phytophagous insect communities on urban maple (Acer spp.) trees

By mitigating the negative effects of urbanization, urban trees contribute significantly to the well-being of urban citizens. However, trees themselves are also exposed to urban stress that can influence tree condition and tree-herbivore interactions. Maple species (Acer spp.) are among the most commonly planted trees in urban areas throughout North America and Europe. Among these species, field, sycamore, and Norway maple are native to Europe, but tolerate environmental stress to varying degrees. Here, we compared the phytophagous insect communities in the canopy of these tree species in the city of Budapest, Hungary. We also examined the stress level [expressed as peroxidase (POD) enzyme activity], and physiological condition (expressed as degree of leaf necrosis and leaf fall) of the maple trees, and their relationship to herbivore abundance. We observed higher total abundance of phytophagous insects on field and sycamore maple compared to Norway maple. Most herbivorous species were associated with field maple, sycamore had the highest aphid densities, and Norway maple harbored the least specific phytophagous insect community. Field maple trees were in the best condition while Norway maple trees in the worst condition, i.e., with the highest proportion of necrotic leaf surface area. The super-abundant planthopper species, Metcalfa pruinosa positively affected the POD activity of trees, but did not influence their condition. On the contrary, M. pruinosa abundance was driven by tree condition, with higher numbers on healthier trees. Our findings suggest that the abundance of phytophagous insects in the canopy of maple trees is highly determined by tree condition, and in this study field maple had the highest and Norway maple the lowest tolerance for urban stress.

قوموں کے عروج وزوال کے اسباب اور محرکات :اسلام کے تناظر میں تجزیاتی مطالعہ

The study of the Qur’ān, Sunnah and History reveals that nature holds the same conditions for the rising and fall of nations. The reasons or causes of downfall and rise which were applicable for Jews and Christians are endorsed for Ummah of Muhammad (S.A.W). The same principles are followed for believers and non-believers. The rules of the Qur’ān are till the Day of Judgment. In the present era, Muslims are in the worst condition; at the national and international levels. The collapse of Baghdad and the Ottoman Empire, Muslim’s condition in Palestine and Kashmir, the genocide of Muslims in Bosnia, Kosovo, Serbia, Burma or Afghanistan, Iraq and Syria, all show decline of Muslims. Muslims are not in power and authority. Muslim riots arose in India and Libya. Muslims are tested and tried. This article found the reasons for nations’ downfall and also brought forward the causes of the rising of nations. No doubt that many moral, social, economic, political, demographic, and historical factors are responsible for the decline of nations. This article analytically studies reasons for the deterioration and escalation of nations which are mentioned in Qur’ān, Sunnah and History and established a cause-and-effect relationship between the various historical events to propose a remedy for the malaise of Nation.

A system dynamics model of the impact of COVID-19 pandemic and foreign direct investment in the global supply chain

COVID-19 pandemic is a great challenge that the world has been faced in recent decades. The pandemic has affected the global trade and has caused a dramatic fall in Foreign Direct Investments (FDI). The impact on FDI is concentrated in the countries that are severely hit by the pandemic, although negative impact of disruptions is observed in other countries. In this paper, a system dynamics model is developed to simulate the impact of the pandemic on the FDI. Results showed that the level of force majeure condition and also the level of flexibility are two important factors that impact on the FDI and other important variables of the supply chain. In the case of lower severity of pandemic and higher flexibility, FDI is higher than the case that these parameters are in their worst condition.

ANALISIS KINERJA PMS REL 2 BAY TRAFO 6 MENGGUNAKAN THERMOVISION METHODE DI GARDU INDUK SUNYARAGI

In an effort to provide reliable and efficient electrical energy, substations have an important role in regulating the demand for electric power loads and as a center for securing electrical power system components in a certain area. Frequent disturbances become a benchmark for an electric power system whether or not it is good or not in an effort to provide reliable and efficient energy. One of the maintenance measures is temperature measurement using thermal imagers, which is commonly referred to as thermovision measurement.Thermal imager is a tool that can be used for predictive maintenance activities to monitor the condition and performance of an equipment so that the possibility of equipment failure can be minimized. In October 2020, after thermovisiting transformer bay 6 at the Sunyaragi substation, it was discovered that there was a hotspot on the T-phase separation blade, causing heating of the blade, the above conditions can result in a decrease in PMS performance, with the worst condition if left alone can result in damage to the PMS blade and can also melt when the peak load is on the transformer 6. Under these conditions, maintenance is carried out by maintaining contact resistance, insulation resistance, and grounding resistance. The results of the analysis of contact resistance after maintenance show that the equipment is in good condition and still suitable for use, with a value of 7μΩ for the R phase, 6.5μΩ for the S phase, and 6.7μΩ for the T phase.

A Structural Design of COVID-19 Patient Lifting Device Using Crane and Hydraulic Mechanism

COVID-19 has brought the mankind into the worst condition. The health care workers as the forefront player during this pandemic are psychology and physically exhausted. In 2021, the infected patient is decreasing in some countries, yet increasing in others. Therefore, this study is aimed to design and analyze a patient lifting device in order to help the health workers in handling paralyzed and bone traumatic patients in effective way. This lifting device is designed to be operated by only one person and contactless with the patient. Thus, the healthcare worker can work on safety procedure of COVID-19. The structural design of the device is using the concept of crane and hydraulic mechanism that can handle a maximum weight of 2,000 N. Every mechanical part that is considered critical becomes the focus in the strength analysis. The analysis is done by theoretical approach under static and dynamic loading. As the results, the static and fatigue analyses show that the most critical part of the lifting device is at the fork structure with safety factor of 1.04. This indicates the design is in safety condition and could have an infinite service life cycle.

Freeze-Thaw Pretreatment Can Improve Efficiency of Bacterial DNA Extraction From Meconium.

Although the presence of live microbes in utero remains under debate, newborn gastrointestinal bacteria are undoubtedly important to infant health. Measuring bacteria in meconium is an ideal strategy to understand this issue; however, the low efficiency of bacterial DNA extraction from meconium has limited its utilization. This study aims to improve the efficiency of bacterial DNA extraction from meconium, which generally has low levels of microflora but high levels of PCR inhibitors in the viscous matrix. The research was approved by the ethical committee of the Xiamen Maternity and Child Health Care Hospital, Xiamen, China. All the mothers delivered naturally, and their newborns were healthy. Meconium samples passed by the newborns within 24 h were collected. Each sample was scraped off of a sterile diaper, transferred to a 5-ml sterile tube, and stored at −80°C. For the assay, a freeze-thawing sample preparation protocol was designed, in which a meconium-InhibitEX buffer mixture was intentionally frozen 1–3 times at −20°C, −80°C, and (or) in liquid nitrogen. Then, DNA was extracted using a commercial kit and sequenced by 16S rDNA to verify the enhanced bacterial DNA extraction efficiency. Ultimately, we observed the following: (1) About 30 mg lyophilized meconium was the optimal amount for DNA extraction. (2) Freezing treatment for 6 h improved DNA extraction at −20°C. (3) DNA extraction efficiency was significantly higher with the immediate thaw strategy than with gradient thawing at −20°C, −80°C, and in liquid nitrogen. (4) Among the conditions of −20°C, −80°C, and liquid nitrogen, −20°C was the best freezing condition for both improving DNA extraction efficiency and preserving microbial species diversity in meconium, while liquid nitrogen was the worst condition. (5) Three freeze-thaw cycles could markedly enhance DNA extraction efficiency and preserve the species diversity of meconium microflora. We developed a feasible freeze-thaw pretreatment protocol to improve the extraction of microbial DNA from meconium, which may be beneficial for newborn bacterial colonization studies.

Mini-Review: Syngas Production Via Partial Oxidation of Methane Reaction and Its Potential Catalyst

Methane as a light gas was generally found in natural gas which was burned freely to gain a high quality of petroleum. This action truly impacted a worst condition in nature, namely greenhouse effect. This brief review described fundamental theory of the important process in methane conversion from natural gas into value-added chemical such as syngas (CO+H 2 ). The methane conversion reaction was commonly divided into direct and indirect reaction. The indirect reaction such as partial oxidation of methane was mostly chosen due to the intermediate product (syngas) can easily generate many raw materials of petrochemicals. This paper also described a potential catalyst to be applied which in heterogeneous type such as perovskite oxide, metal oxide and zeolite.

Robust PIDD2 Controller Design for Perturbed Load Frequency Control of an Interconnected Time-Delayed Power Systems

The extensive practice of open communication links in the power system network introduces unavoidable communication time delays (CTDs). These CTDs demean the performance of the load frequency control (LFC) system, and in the worst condition, the LFC system becomes unstable. Thus, this brief proposes a robust proportional integral derivative double derivative (PIDD2) controller design for the perturbed LFC of the interconnected time-delayed power system. In this brief, the worst case plant selection approach is applied to find the worst case plant model using Kharitonov’s stability theorem of the interval system. The proposed PIDD2 controller is designed for the selected worst case plant model of the original interval plant. Furthermore, the tuning of PIDD2 controller is carried out using an internal model control (IMC) approach. The notable feature of the presented IMC scheme is that the IMC filter coefficient ( <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$\lambda $ </tex-math></inline-formula> ) is determined in terms of maximum sensitivity ( <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$M_{s}$ </tex-math></inline-formula> ) and CTD, which shows the tradeoff between robustness and performance. The proposed control scheme is validated on a two-area time-delayed power system model. The effectiveness and robustness of the proposed IMC-PIDD2 control approach are assessed under parametric uncertainties in system parameters as well as CTD, nonlinearities, and step load demand disturbances. Besides, delay margin (DM) is also computed in the sense of Walton and Marshall stability theorems for the proposed control system. The efficacy of the proposed IMC-PIDD2 control scheme is verified by comparing it with the recently reported control schemes.